271 files changed, 16496 insertions, 874 deletions

diff --git a/include/asm-alpha/mmzone.h b/include/asm-alpha/mmzone.h
index 726c150dcbe4..a011ef4cf3d3 100644
--- a/include/asm-alpha/mmzone.h
+++ b/include/asm-alpha/mmzone.h
@@ -57,7 +57,6 @@ PLAT_NODE_DATA_LOCALNR(unsigned long p, int n)
  * Given a kernel address, find the home node of the underlying memory.
  */
 #define kvaddr_to_nid(kaddr)    pa_to_nid(__pa(kaddr))
-#define node_mem_map(nid)       (NODE_DATA(nid)->node_mem_map)
 #define node_start_pfn(nid)     (NODE_DATA(nid)->node_start_pfn)
 
 #define local_mapnr(kvaddr) \
@@ -108,7 +107,7 @@ PLAT_NODE_DATA_LOCALNR(unsigned long p, int n)
 #define pfn_to_page(pfn)                                                \
 ({                                                                      \
         unsigned long kaddr = (unsigned long)__va((pfn) << PAGE_SHIFT); \
-        (node_mem_map(kvaddr_to_nid(kaddr)) + local_mapnr(kaddr));      \
+        (NODE_DATA(kvaddr_to_nid(kaddr))->node_mem_map + local_mapnr(kaddr));   \
 })
 
 #define page_to_pfn(page)                                               \
diff --git a/include/asm-arm/arch-ixp2000/gpio.h b/include/asm-arm/arch-ixp2000/gpio.h
index 84634af5cc64..03cbbe1fd9d8 100644
--- a/include/asm-arm/arch-ixp2000/gpio.h
+++ b/include/asm-arm/arch-ixp2000/gpio.h
@@ -1,5 +1,5 @@
 /*
- * include/asm-arm/arch-ixp2000/ixp2000-gpio.h
+ * include/asm-arm/arch-ixp2000/gpio.h
  *
  * Copyright (C) 2002 Intel Corporation.
  *
@@ -16,26 +16,18 @@
  * Use this instead of directly setting the GPIO registers.
  * GPIOs may also be used as GPIOs (e.g. for emulating i2c/smb)
  */
-#ifndef _ASM_ARCH_IXP2000_GPIO_H_
-#define _ASM_ARCH_IXP2000_GPIO_H_
+#ifndef __ASM_ARCH_GPIO_H
+#define __ASM_ARCH_GPIO_H
 
 #ifndef __ASSEMBLY__
-#define GPIO_OUT                        0x0
-#define GPIO_IN                         0x80
+
+#define GPIO_IN                         0
+#define GPIO_OUT                        1
 
 #define IXP2000_GPIO_LOW                0
 #define IXP2000_GPIO_HIGH               1
 
-#define GPIO_NO_EDGES                   0
-#define GPIO_FALLING_EDGE               1
-#define GPIO_RISING_EDGE                2
-#define GPIO_BOTH_EDGES                 3
-#define GPIO_LEVEL_LOW                  4
-#define GPIO_LEVEL_HIGH                 8
-
-extern void set_GPIO_IRQ_edge(int gpio_nr, int edge);
-extern void set_GPIO_IRQ_level(int gpio_nr, int level);
-extern void gpio_line_config(int line, int style);
+extern void gpio_line_config(int line, int direction);
 
 static inline int gpio_line_get(int line)
 {
@@ -45,11 +37,12 @@ static inline int gpio_line_get(int line)
 static inline void gpio_line_set(int line, int value)
 {
         if (value == IXP2000_GPIO_HIGH) {
-                ixp_reg_write(IXP2000_GPIO_POSR, BIT(line));
-        } else if (value == IXP2000_GPIO_LOW)
-                ixp_reg_write(IXP2000_GPIO_POCR, BIT(line));
+                ixp2000_reg_write(IXP2000_GPIO_POSR, 1 << line);
+        } else if (value == IXP2000_GPIO_LOW) {
+                ixp2000_reg_write(IXP2000_GPIO_POCR, 1 << line);
+        }
 }
 
 #endif /* !__ASSEMBLY__ */
-#endif /* ASM_ARCH_IXP2000_GPIO_H_ */
 
+#endif /* ASM_ARCH_IXP2000_GPIO_H_ */
diff --git a/include/asm-arm/arch-ixp2000/io.h b/include/asm-arm/arch-ixp2000/io.h
index 083462668e18..5e56b47446e0 100644
--- a/include/asm-arm/arch-ixp2000/io.h
+++ b/include/asm-arm/arch-ixp2000/io.h
@@ -27,8 +27,8 @@
  * since that isn't available on the A? revisions we just keep doing
  * things manually.
  */
-#define alignb(addr)            (void __iomem *)((unsigned long)addr ^ 3)
-#define alignw(addr)            (void __iomem *)((unsigned long)addr ^ 2)
+#define alignb(addr)            (void __iomem *)((unsigned long)(addr) ^ 3)
+#define alignw(addr)            (void __iomem *)((unsigned long)(addr) ^ 2)
 
 #define outb(v,p)               __raw_writeb((v),alignb(___io(p)))
 #define outw(v,p)               __raw_writew((v),alignw(___io(p)))
@@ -48,6 +48,78 @@
 #define insw(p,d,l)             __raw_readsw(alignw(___io(p)),d,l)
 #define insl(p,d,l)             __raw_readsl(___io(p),d,l)
 
+#define __is_io_address(p)      ((((unsigned long)(p)) & ~(IXP2000_PCI_IO_SIZE - 1)) == IXP2000_PCI_IO_VIRT_BASE)
+
+#define ioread8(p)                                              \
+        ({                                                      \
+                unsigned int __v;                               \
+                                                                \
+                if (__is_io_address(p)) {                       \
+                        __v = __raw_readb(alignb(p));           \
+                } else {                                        \
+                        __v = __raw_readb(p);                   \
+                }                                               \
+                                                                \
+                __v;                                            \
+        })                                                      \
+
+#define ioread16(p)                                             \
+        ({                                                      \
+                unsigned int __v;                               \
+                                                                \
+                if (__is_io_address(p)) {                       \
+                        __v = __raw_readw(alignw(p));           \
+                } else {                                        \
+                        __v = le16_to_cpu(__raw_readw(p));      \
+                }                                               \
+                                                                \
+                __v;                                            \
+        })
+
+#define ioread32(p)                                             \
+        ({                                                      \
+                unsigned int __v;                               \
+                                                                \
+                if (__is_io_address(p)) {                       \
+                        __v = __raw_readl(p);                   \
+                } else {                                        \
+                        __v = le32_to_cpu(__raw_readl(p));      \
+                }                                               \
+                                                                \
+                 __v;                                           \
+        })
+
+#define iowrite8(v,p)                                           \
+        ({                                                      \
+                if (__is_io_address(p)) {                       \
+                        __raw_writeb((v), alignb(p));           \
+                } else {                                        \
+                        __raw_writeb((v), p);                   \
+                }                                               \
+        })
+
+#define iowrite16(v,p)                                          \
+        ({                                                      \
+                if (__is_io_address(p)) {                       \
+                        __raw_writew((v), alignw(p));           \
+                } else {                                        \
+                        __raw_writew(cpu_to_le16(v), p);        \
+                }                                               \
+        })
+
+#define iowrite32(v,p)                                          \
+        ({                                                      \
+                if (__is_io_address(p)) {                       \
+                        __raw_writel((v), p);                   \
+                } else {                                        \
+                        __raw_writel(cpu_to_le32(v), p);        \
+                }                                               \
+        })
+
+#define ioport_map(port, nr)    ___io(port)
+
+#define ioport_unmap(addr)
+
 
 #ifdef CONFIG_ARCH_IXDP2X01
 /*
diff --git a/include/asm-arm/arch-ixp2000/platform.h b/include/asm-arm/arch-ixp2000/platform.h
index 901bba6d02b4..52ded516ea5c 100644
--- a/include/asm-arm/arch-ixp2000/platform.h
+++ b/include/asm-arm/arch-ixp2000/platform.h
@@ -138,30 +138,10 @@ struct ixp2000_flash_data {
         unsigned long (*bank_setup)(unsigned long);
 };
 
-/*
- * GPIO helper functions
- */
-#define GPIO_IN         0
-#define GPIO_OUT        1
-
-extern void gpio_line_config(int line, int style);
-
-static inline int gpio_line_get(int line)
-{
-        return (((*IXP2000_GPIO_PLR) >> line) & 1);
-}
-
-static inline void gpio_line_set(int line, int value)
-{
-        if (value) 
-                ixp2000_reg_write(IXP2000_GPIO_POSR, (1 << line));
-        else 
-                ixp2000_reg_write(IXP2000_GPIO_POCR, (1 << line));
-}
-
 struct ixp2000_i2c_pins {
         unsigned long sda_pin;
         unsigned long scl_pin;
 };
 
+
 #endif /*  !__ASSEMBLY__ */
diff --git a/include/asm-arm/arch-ixp4xx/debug-macro.S b/include/asm-arm/arch-ixp4xx/debug-macro.S
index 4499ae8e4b44..45a6c6cc29d5 100644
--- a/include/asm-arm/arch-ixp4xx/debug-macro.S
+++ b/include/asm-arm/arch-ixp4xx/debug-macro.S
@@ -14,6 +14,7 @@
                 mrc     p15, 0, \rx, c1, c0
                 tst     \rx, #1                 @ MMU enabled?
                 moveq   \rx, #0xc8000000
+                orrne   \rx, \rx, #0x00b00000
                 movne   \rx, #0xff000000
                 add     \rx,\rx,#3              @ Uart regs are at off set of 3 if
                                                 @ byte writes used - Big Endian.
diff --git a/include/asm-arm/arch-ixp4xx/ixp4xx-regs.h b/include/asm-arm/arch-ixp4xx/ixp4xx-regs.h
index 8eeb1db6309d..004696a95bdb 100644
--- a/include/asm-arm/arch-ixp4xx/ixp4xx-regs.h
+++ b/include/asm-arm/arch-ixp4xx/ixp4xx-regs.h
@@ -69,6 +69,16 @@
 #define IXP4XX_PERIPHERAL_BASE_VIRT     (0xFFBF2000)
 #define IXP4XX_PERIPHERAL_REGION_SIZE   (0x0000C000)
 
+/*
+ * Debug UART
+ *
+ * This is basically a remap of UART1 into a region that is section
+ * aligned so that it * can be used with the low-level debug code.
+ */
+#define IXP4XX_DEBUG_UART_BASE_PHYS     (0xC8000000)
+#define IXP4XX_DEBUG_UART_BASE_VIRT     (0xffb00000)
+#define IXP4XX_DEBUG_UART_REGION_SIZE   (0x00001000)
+
 #define IXP4XX_EXP_CS0_OFFSET   0x00
 #define IXP4XX_EXP_CS1_OFFSET   0x04
 #define IXP4XX_EXP_CS2_OFFSET   0x08
diff --git a/include/asm-arm/io.h b/include/asm-arm/io.h
index 08a46302d265..cc4b5f5dbfcf 100644
--- a/include/asm-arm/io.h
+++ b/include/asm-arm/io.h
@@ -275,6 +275,7 @@ extern void __iounmap(void __iomem *addr);
 /*
  * io{read,write}{8,16,32} macros
  */
+#ifndef ioread8
 #define ioread8(p)      ({ unsigned int __v = __raw_readb(p); __v; })
 #define ioread16(p)     ({ unsigned int __v = le16_to_cpu(__raw_readw(p)); __v; })
 #define ioread32(p)     ({ unsigned int __v = le32_to_cpu(__raw_readl(p)); __v; })
@@ -293,6 +294,7 @@ extern void __iounmap(void __iomem *addr);
 
 extern void __iomem *ioport_map(unsigned long port, unsigned int nr);
 extern void ioport_unmap(void __iomem *addr);
+#endif
 
 struct pci_dev;
 
diff --git a/include/asm-arm/thread_info.h b/include/asm-arm/thread_info.h
index 66c585c50cf9..8252a4cd860f 100644
--- a/include/asm-arm/thread_info.h
+++ b/include/asm-arm/thread_info.h
@@ -49,7 +49,7 @@ struct cpu_context_save {
  */
 struct thread_info {
         unsigned long           flags;          /* low level flags */
-        __s32                   preempt_count;  /* 0 => preemptable, <0 => bug */
+        int                     preempt_count;  /* 0 => preemptable, <0 => bug */
         mm_segment_t            addr_limit;     /* address limit */
         struct task_struct      *task;          /* main task structure */
         struct exec_domain      *exec_domain;   /* execution domain */
diff --git a/include/asm-arm26/thread_info.h b/include/asm-arm26/thread_info.h
index 50f41b50268a..aff3e5699c64 100644
--- a/include/asm-arm26/thread_info.h
+++ b/include/asm-arm26/thread_info.h
@@ -44,7 +44,7 @@ struct cpu_context_save {
  */
 struct thread_info {
         unsigned long           flags;          /* low level flags */
-        __s32                   preempt_count;  /* 0 => preemptable, <0 => bug */
+        int                     preempt_count;  /* 0 => preemptable, <0 => bug */
         mm_segment_t            addr_limit;     /* address limit */
         struct task_struct      *task;          /* main task structure */
         struct exec_domain      *exec_domain;   /* execution domain */
diff --git a/include/asm-cris/thread_info.h b/include/asm-cris/thread_info.h
index 53193feb0826..5ba4b7865cc5 100644
--- a/include/asm-cris/thread_info.h
+++ b/include/asm-cris/thread_info.h
@@ -31,7 +31,7 @@ struct thread_info {
         struct exec_domain      *exec_domain;   /* execution domain */
         unsigned long           flags;          /* low level flags */
         __u32                   cpu;            /* current CPU */
-        __s32                   preempt_count; /* 0 => preemptable, <0 => BUG */
+        int                     preempt_count;  /* 0 => preemptable, <0 => BUG */
 
         mm_segment_t            addr_limit;     /* thread address space:
                                                    0-0xBFFFFFFF for user-thead
diff --git a/include/asm-frv/thread_info.h b/include/asm-frv/thread_info.h
index b80a97f50af6..c8cba7836f0d 100644
--- a/include/asm-frv/thread_info.h
+++ b/include/asm-frv/thread_info.h
@@ -33,7 +33,7 @@ struct thread_info {
         unsigned long           flags;          /* low level flags */
         unsigned long           status;         /* thread-synchronous flags */
         __u32                   cpu;            /* current CPU */
-        __s32                   preempt_count;  /* 0 => preemptable, <0 => BUG */
+        int                     preempt_count;  /* 0 => preemptable, <0 => BUG */
 
         mm_segment_t            addr_limit;     /* thread address space:
                                                    0-0xBFFFFFFF for user-thead
diff --git a/include/asm-generic/percpu.h b/include/asm-generic/percpu.h
index 3b709b84934f..9044aeb37828 100644
--- a/include/asm-generic/percpu.h
+++ b/include/asm-generic/percpu.h
@@ -29,7 +29,7 @@ do {								\
 #define DEFINE_PER_CPU(type, name) \
     __typeof__(type) per_cpu__##name
 
-#define per_cpu(var, cpu)                       (*((void)cpu, &per_cpu__##var))
+#define per_cpu(var, cpu)                       (*((void)(cpu), &per_cpu__##var))
 #define __get_cpu_var(var)                      per_cpu__##var
 
 #endif  /* SMP */
diff --git a/include/asm-generic/topology.h b/include/asm-generic/topology.h
index ec96e8b0f190..5d9d70cd17fc 100644
--- a/include/asm-generic/topology.h
+++ b/include/asm-generic/topology.h
@@ -41,8 +41,15 @@
 #ifndef node_to_first_cpu
 #define node_to_first_cpu(node) (0)
 #endif
+#ifndef pcibus_to_node
+#define pcibus_to_node(node)    (-1)
+#endif
+
 #ifndef pcibus_to_cpumask
-#define pcibus_to_cpumask(bus)  (cpu_online_map)
+#define pcibus_to_cpumask(bus)  (pcibus_to_node(bus) == -1 ? \
+                                        CPU_MASK_ALL : \
+                                        node_to_cpumask(pcibus_to_node(bus)) \
+                                )
 #endif
 
 #endif /* _ASM_GENERIC_TOPOLOGY_H */
diff --git a/include/asm-h8300/thread_info.h b/include/asm-h8300/thread_info.h
index b07c9344776f..bfcc755c3bb1 100644
--- a/include/asm-h8300/thread_info.h
+++ b/include/asm-h8300/thread_info.h
@@ -23,7 +23,7 @@ struct thread_info {
         struct exec_domain *exec_domain;        /* execution domain */
         unsigned long      flags;               /* low level flags */
         int                cpu;                 /* cpu we're on */
-        int                preempt_count;       /* 0 => preemptable, <0 => BUG*/
+        int                preempt_count;       /* 0 => preemptable, <0 => BUG */
         struct restart_block restart_block;
 };
 
diff --git a/include/asm-i386/checksum.h b/include/asm-i386/checksum.h
index 641342002bcd..f949e44c2a35 100644
--- a/include/asm-i386/checksum.h
+++ b/include/asm-i386/checksum.h
@@ -3,6 +3,8 @@
 
 #include <linux/in6.h>
 
+#include <asm/uaccess.h>
+
 /*
  * computes the checksum of a memory block at buff, length len,
  * and adds in "sum" (32-bit)
diff --git a/include/asm-i386/genapic.h b/include/asm-i386/genapic.h
index fc813b2e8274..b3783a32abee 100644
--- a/include/asm-i386/genapic.h
+++ b/include/asm-i386/genapic.h
@@ -78,7 +78,6 @@ struct genapic {
         .int_delivery_mode = INT_DELIVERY_MODE, \
         .int_dest_mode = INT_DEST_MODE, \
         .no_balance_irq = NO_BALANCE_IRQ, \
-        .no_ioapic_check = NO_IOAPIC_CHECK, \
         .ESR_DISABLE = esr_disable, \
         .apic_destination_logical = APIC_DEST_LOGICAL, \
         APICFUNC(apic_id_registered), \
diff --git a/include/asm-i386/kprobes.h b/include/asm-i386/kprobes.h
index 4092f68d123a..8b6d3a90cd78 100644
--- a/include/asm-i386/kprobes.h
+++ b/include/asm-i386/kprobes.h
@@ -39,6 +39,9 @@ typedef u8 kprobe_opcode_t;
         : (((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR)))
 
 #define JPROBE_ENTRY(pentry)    (kprobe_opcode_t *)pentry
+#define ARCH_SUPPORTS_KRETPROBES
+
+void kretprobe_trampoline(void);
 
 /* Architecture specific copy of original instruction*/
 struct arch_specific_insn {
diff --git a/include/asm-i386/mach-bigsmp/mach_apic.h b/include/asm-i386/mach-bigsmp/mach_apic.h
index 2339868270ef..ba936d4daedb 100644
--- a/include/asm-i386/mach-bigsmp/mach_apic.h
+++ b/include/asm-i386/mach-bigsmp/mach_apic.h
@@ -14,8 +14,6 @@
 #define NO_BALANCE_IRQ (1)
 #define esr_disable (1)
 
-#define NO_IOAPIC_CHECK (0)
-
 static inline int apic_id_registered(void)
 {
         return (1);
diff --git a/include/asm-i386/mach-default/mach_apic.h b/include/asm-i386/mach-default/mach_apic.h
index 627f1cd084ba..3ef6292db780 100644
--- a/include/asm-i386/mach-default/mach_apic.h
+++ b/include/asm-i386/mach-default/mach_apic.h
@@ -19,8 +19,6 @@ static inline cpumask_t target_cpus(void)
 #define NO_BALANCE_IRQ (0)
 #define esr_disable (0)
 
-#define NO_IOAPIC_CHECK (0)
-
 #define INT_DELIVERY_MODE dest_LowestPrio
 #define INT_DEST_MODE 1     /* logical delivery broadcast to all procs */
 
diff --git a/include/asm-i386/mach-es7000/mach_apic.h b/include/asm-i386/mach-es7000/mach_apic.h
index ceab2c464b13..b5f3f0d0b2bc 100644
--- a/include/asm-i386/mach-es7000/mach_apic.h
+++ b/include/asm-i386/mach-es7000/mach_apic.h
@@ -38,8 +38,6 @@ static inline cpumask_t target_cpus(void)
 #define WAKE_SECONDARY_VIA_INIT
 #endif
 
-#define NO_IOAPIC_CHECK (1)
-
 static inline unsigned long check_apicid_used(physid_mask_t bitmap, int apicid)
 { 
         return 0;
diff --git a/include/asm-i386/mach-generic/mach_apic.h b/include/asm-i386/mach-generic/mach_apic.h
index ab36d02ebede..b13767a4e934 100644
--- a/include/asm-i386/mach-generic/mach_apic.h
+++ b/include/asm-i386/mach-generic/mach_apic.h
@@ -5,7 +5,6 @@
 
 #define esr_disable (genapic->ESR_DISABLE)
 #define NO_BALANCE_IRQ (genapic->no_balance_irq)
-#define NO_IOAPIC_CHECK (genapic->no_ioapic_check)
 #define INT_DELIVERY_MODE (genapic->int_delivery_mode)
 #define INT_DEST_MODE (genapic->int_dest_mode)
 #undef APIC_DEST_LOGICAL
diff --git a/include/asm-i386/mach-numaq/mach_apic.h b/include/asm-i386/mach-numaq/mach_apic.h
index e1a04494764a..9d158095da82 100644
--- a/include/asm-i386/mach-numaq/mach_apic.h
+++ b/include/asm-i386/mach-numaq/mach_apic.h
@@ -17,8 +17,6 @@ static inline cpumask_t target_cpus(void)
 #define NO_BALANCE_IRQ (1)
 #define esr_disable (1)
 
-#define NO_IOAPIC_CHECK (0)
-
 #define INT_DELIVERY_MODE dest_LowestPrio
 #define INT_DEST_MODE 0     /* physical delivery on LOCAL quad */
  
diff --git a/include/asm-i386/mach-summit/mach_apic.h b/include/asm-i386/mach-summit/mach_apic.h
index 74e9cbc8c01b..3d6d12937e1f 100644
--- a/include/asm-i386/mach-summit/mach_apic.h
+++ b/include/asm-i386/mach-summit/mach_apic.h
@@ -7,8 +7,6 @@
 #define esr_disable (1)
 #define NO_BALANCE_IRQ (0)
 
-#define NO_IOAPIC_CHECK (1)     /* Don't check I/O APIC ID for xAPIC */
-
 /* In clustered mode, the high nibble of APIC ID is a cluster number.
  * The low nibble is a 4-bit bitmap. */
 #define XAPIC_DEST_CPUS_SHIFT   4
diff --git a/include/asm-i386/mach-visws/mach_apic.h b/include/asm-i386/mach-visws/mach_apic.h
index 4e6cdfb8b091..de438c7147a8 100644
--- a/include/asm-i386/mach-visws/mach_apic.h
+++ b/include/asm-i386/mach-visws/mach_apic.h
@@ -9,8 +9,6 @@
 #define no_balance_irq (0)
 #define esr_disable (0)
 
-#define NO_IOAPIC_CHECK (0)
-
 #define INT_DELIVERY_MODE dest_LowestPrio
 #define INT_DEST_MODE 1     /* logical delivery broadcast to all procs */
 
diff --git a/include/asm-i386/mmzone.h b/include/asm-i386/mmzone.h
index 13830ae67cac..33ce5d37e894 100644
--- a/include/asm-i386/mmzone.h
+++ b/include/asm-i386/mmzone.h
@@ -8,7 +8,9 @@
 
 #include <asm/smp.h>
 
-#ifdef CONFIG_DISCONTIGMEM
+#if CONFIG_NUMA
+extern struct pglist_data *node_data[];
+#define NODE_DATA(nid)  (node_data[nid])
 
 #ifdef CONFIG_NUMA
         #ifdef CONFIG_X86_NUMAQ
@@ -21,8 +23,28 @@
         #define get_zholes_size(n) (0)
 #endif /* CONFIG_NUMA */
 
-extern struct pglist_data *node_data[];
-#define NODE_DATA(nid)          (node_data[nid])
+extern int get_memcfg_numa_flat(void );
+/*
+ * This allows any one NUMA architecture to be compiled
+ * for, and still fall back to the flat function if it
+ * fails.
+ */
+static inline void get_memcfg_numa(void)
+{
+#ifdef CONFIG_X86_NUMAQ
+        if (get_memcfg_numaq())
+                return;
+#elif CONFIG_ACPI_SRAT
+        if (get_memcfg_from_srat())
+                return;
+#endif
+
+        get_memcfg_numa_flat();
+}
+
+#endif /* CONFIG_NUMA */
+
+#ifdef CONFIG_DISCONTIGMEM
 
 /*
  * generic node memory support, the following assumptions apply:
@@ -48,26 +70,6 @@ static inline int pfn_to_nid(unsigned long pfn)
 #endif
 }
 
-/*
- * Following are macros that are specific to this numa platform.
- */
-#define reserve_bootmem(addr, size) \
-        reserve_bootmem_node(NODE_DATA(0), (addr), (size))
-#define alloc_bootmem(x) \
-        __alloc_bootmem_node(NODE_DATA(0), (x), SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS))
-#define alloc_bootmem_low(x) \
-        __alloc_bootmem_node(NODE_DATA(0), (x), SMP_CACHE_BYTES, 0)
-#define alloc_bootmem_pages(x) \
-        __alloc_bootmem_node(NODE_DATA(0), (x), PAGE_SIZE, __pa(MAX_DMA_ADDRESS))
-#define alloc_bootmem_low_pages(x) \
-        __alloc_bootmem_node(NODE_DATA(0), (x), PAGE_SIZE, 0)
-#define alloc_bootmem_node(ignore, x) \
-        __alloc_bootmem_node(NODE_DATA(0), (x), SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS))
-#define alloc_bootmem_pages_node(ignore, x) \
-        __alloc_bootmem_node(NODE_DATA(0), (x), PAGE_SIZE, __pa(MAX_DMA_ADDRESS))
-#define alloc_bootmem_low_pages_node(ignore, x) \
-        __alloc_bootmem_node(NODE_DATA(0), (x), PAGE_SIZE, 0)
-
 #define node_localnr(pfn, nid)          ((pfn) - node_data[nid]->node_start_pfn)
 
 /*
@@ -79,7 +81,6 @@ static inline int pfn_to_nid(unsigned long pfn)
  */
 #define kvaddr_to_nid(kaddr)    pfn_to_nid(__pa(kaddr) >> PAGE_SHIFT)
 
-#define node_mem_map(nid)       (NODE_DATA(nid)->node_mem_map)
 #define node_start_pfn(nid)     (NODE_DATA(nid)->node_start_pfn)
 #define node_end_pfn(nid)                                               \
 ({                                                                      \
@@ -100,7 +101,7 @@ static inline int pfn_to_nid(unsigned long pfn)
 ({                                                                      \
         unsigned long __pfn = pfn;                                      \
         int __node  = pfn_to_nid(__pfn);                                \
-        &node_mem_map(__node)[node_localnr(__pfn,__node)];              \
+        &NODE_DATA(__node)->node_mem_map[node_localnr(__pfn,__node)];   \
 })
 
 #define page_to_pfn(pg)                                                 \
@@ -122,26 +123,34 @@ static inline int pfn_valid(int pfn)
                 return (pfn < node_end_pfn(nid));
         return 0;
 }
-#endif
+#endif /* CONFIG_X86_NUMAQ */
+
+#endif /* CONFIG_DISCONTIGMEM */
+
+#ifdef CONFIG_NEED_MULTIPLE_NODES
 
-extern int get_memcfg_numa_flat(void );
 /*
- * This allows any one NUMA architecture to be compiled
- * for, and still fall back to the flat function if it
- * fails.
+ * Following are macros that are specific to this numa platform.
  */
-static inline void get_memcfg_numa(void)
-{
-#ifdef CONFIG_X86_NUMAQ
-        if (get_memcfg_numaq())
-                return;
-#elif CONFIG_ACPI_SRAT
-        if (get_memcfg_from_srat())
-                return;
-#endif
+#define reserve_bootmem(addr, size) \
+        reserve_bootmem_node(NODE_DATA(0), (addr), (size))
+#define alloc_bootmem(x) \
+        __alloc_bootmem_node(NODE_DATA(0), (x), SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS))
+#define alloc_bootmem_low(x) \
+        __alloc_bootmem_node(NODE_DATA(0), (x), SMP_CACHE_BYTES, 0)
+#define alloc_bootmem_pages(x) \
+        __alloc_bootmem_node(NODE_DATA(0), (x), PAGE_SIZE, __pa(MAX_DMA_ADDRESS))
+#define alloc_bootmem_low_pages(x) \
+        __alloc_bootmem_node(NODE_DATA(0), (x), PAGE_SIZE, 0)
+#define alloc_bootmem_node(ignore, x) \
+        __alloc_bootmem_node(NODE_DATA(0), (x), SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS))
+#define alloc_bootmem_pages_node(ignore, x) \
+        __alloc_bootmem_node(NODE_DATA(0), (x), PAGE_SIZE, __pa(MAX_DMA_ADDRESS))
+#define alloc_bootmem_low_pages_node(ignore, x) \
+        __alloc_bootmem_node(NODE_DATA(0), (x), PAGE_SIZE, 0)
 
-        get_memcfg_numa_flat();
-}
+#endif /* CONFIG_NEED_MULTIPLE_NODES */
+
+extern int early_pfn_to_nid(unsigned long pfn);
 
-#endif /* CONFIG_DISCONTIGMEM */
 #endif /* _ASM_MMZONE_H_ */
diff --git a/include/asm-i386/page.h b/include/asm-i386/page.h
index 41400d342d44..dea8f8e6d86e 100644
--- a/include/asm-i386/page.h
+++ b/include/asm-i386/page.h
@@ -120,6 +120,8 @@ static __inline__ int get_order(unsigned long size)
 
 extern int sysctl_legacy_va_layout;
 
+extern int page_is_ram(unsigned long pagenr);
+
 #endif /* __ASSEMBLY__ */
 
 #ifdef __ASSEMBLY__
@@ -135,11 +137,11 @@ extern int sysctl_legacy_va_layout;
 #define __pa(x)                 ((unsigned long)(x)-PAGE_OFFSET)
 #define __va(x)                 ((void *)((unsigned long)(x)+PAGE_OFFSET))
 #define pfn_to_kaddr(pfn)      __va((pfn) << PAGE_SHIFT)
-#ifndef CONFIG_DISCONTIGMEM
+#ifdef CONFIG_FLATMEM
 #define pfn_to_page(pfn)        (mem_map + (pfn))
 #define page_to_pfn(page)       ((unsigned long)((page) - mem_map))
 #define pfn_valid(pfn)          ((pfn) < max_mapnr)
-#endif /* !CONFIG_DISCONTIGMEM */
+#endif /* CONFIG_FLATMEM */
 #define virt_to_page(kaddr)     pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
 
 #define virt_addr_valid(kaddr)  pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
diff --git a/include/asm-i386/param.h b/include/asm-i386/param.h
index b6440526e42a..fa02e67ea86b 100644
--- a/include/asm-i386/param.h
+++ b/include/asm-i386/param.h
@@ -1,8 +1,10 @@
+#include <linux/config.h>
+
 #ifndef _ASMi386_PARAM_H
 #define _ASMi386_PARAM_H
 
 #ifdef __KERNEL__
-# define HZ             1000            /* Internal kernel timer frequency */
+# define HZ             CONFIG_HZ       /* Internal kernel timer frequency */
 # define USER_HZ        100             /* .. some user interfaces are in "ticks" */
 # define CLOCKS_PER_SEC         (USER_HZ)       /* like times() */
 #endif
diff --git a/include/asm-i386/pgtable.h b/include/asm-i386/pgtable.h
index e9efe148fdf7..77c6497f416e 100644
--- a/include/asm-i386/pgtable.h
+++ b/include/asm-i386/pgtable.h
@@ -398,9 +398,9 @@ extern void noexec_setup(const char *str);
 
 #endif /* !__ASSEMBLY__ */
 
-#ifndef CONFIG_DISCONTIGMEM
+#ifdef CONFIG_FLATMEM
 #define kern_addr_valid(addr)   (1)
-#endif /* !CONFIG_DISCONTIGMEM */
+#endif /* CONFIG_FLATMEM */
 
 #define io_remap_page_range(vma, vaddr, paddr, size, prot)              \
                 remap_pfn_range(vma, vaddr, (paddr) >> PAGE_SHIFT, size, prot)
diff --git a/include/asm-i386/processor.h b/include/asm-i386/processor.h
index 359bb0151742..c76c50e96225 100644
--- a/include/asm-i386/processor.h
+++ b/include/asm-i386/processor.h
@@ -501,12 +501,16 @@ static inline void load_esp0(struct tss_struct *tss, struct thread_struct *threa
 } while (0)
 
 /*
- * This special macro can be used to load a debugging register
+ * These special macros can be used to get or set a debugging register
  */
-#define loaddebug(thread,register) \
-               __asm__("movl %0,%%db" #register  \
-                       : /* no output */ \
-                       :"r" ((thread)->debugreg[register]))
+#define get_debugreg(var, register)                             \
+                __asm__("movl %%db" #register ", %0"            \
+                        :"=r" (var))
+#define set_debugreg(value, register)                   \
+                __asm__("movl %0,%%db" #register                \
+                        : /* no output */                       \
+                        :"r" (value))
+
 
 /* Forward declaration, a strange C thing */
 struct task_struct;
diff --git a/include/asm-i386/ptrace.h b/include/asm-i386/ptrace.h
index 8618914b3521..eef9f93870d4 100644
--- a/include/asm-i386/ptrace.h
+++ b/include/asm-i386/ptrace.h
@@ -57,7 +57,8 @@ struct pt_regs {
 #ifdef __KERNEL__
 struct task_struct;
 extern void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int error_code);
-#define user_mode(regs) ((VM_MASK & (regs)->eflags) || (3 & (regs)->xcs))
+#define user_mode(regs)         (3 & (regs)->xcs)
+#define user_mode_vm(regs)      ((VM_MASK & (regs)->eflags) || user_mode(regs))
 #define instruction_pointer(regs) ((regs)->eip)
 #if defined(CONFIG_SMP) && defined(CONFIG_FRAME_POINTER)
 extern unsigned long profile_pc(struct pt_regs *regs);
diff --git a/include/asm-i386/sparsemem.h b/include/asm-i386/sparsemem.h
new file mode 100644
index 000000000000..cfeed990585f
--- /dev/null
+++ b/include/asm-i386/sparsemem.h
@@ -0,0 +1,31 @@
+#ifndef _I386_SPARSEMEM_H
+#define _I386_SPARSEMEM_H
+#ifdef CONFIG_SPARSEMEM
+
+/*
+ * generic non-linear memory support:
+ *
+ * 1) we will not split memory into more chunks than will fit into the
+ *    flags field of the struct page
+ */
+
+/*
+ * SECTION_SIZE_BITS            2^N: how big each section will be
+ * MAX_PHYSADDR_BITS            2^N: how much physical address space we have
+ * MAX_PHYSMEM_BITS             2^N: how much memory we can have in that space
+ */
+#ifdef CONFIG_X86_PAE
+#define SECTION_SIZE_BITS       30
+#define MAX_PHYSADDR_BITS       36
+#define MAX_PHYSMEM_BITS        36
+#else
+#define SECTION_SIZE_BITS       26
+#define MAX_PHYSADDR_BITS       32
+#define MAX_PHYSMEM_BITS        32
+#endif
+
+/* XXX: FIXME -- wli */
+#define kern_addr_valid(kaddr)  (0)
+
+#endif /* CONFIG_SPARSEMEM */
+#endif /* _I386_SPARSEMEM_H */
diff --git a/include/asm-i386/string.h b/include/asm-i386/string.h
index 6a78ac58c194..02c8f5d22065 100644
--- a/include/asm-i386/string.h
+++ b/include/asm-i386/string.h
@@ -116,7 +116,8 @@ __asm__ __volatile__(
         "orb $1,%%al\n"
         "3:"
         :"=a" (__res), "=&S" (d0), "=&D" (d1)
-                     :"1" (cs),"2" (ct));
+        :"1" (cs),"2" (ct)
+        :"memory");
 return __res;
 }
 
@@ -138,8 +139,9 @@ __asm__ __volatile__(
         "3:\tsbbl %%eax,%%eax\n\t"
         "orb $1,%%al\n"
         "4:"
-                     :"=a" (__res), "=&S" (d0), "=&D" (d1), "=&c" (d2)
-                     :"1" (cs),"2" (ct),"3" (count));
+        :"=a" (__res), "=&S" (d0), "=&D" (d1), "=&c" (d2)
+        :"1" (cs),"2" (ct),"3" (count)
+        :"memory");
 return __res;
 }
 
@@ -158,7 +160,9 @@ __asm__ __volatile__(
         "movl $1,%1\n"
         "2:\tmovl %1,%0\n\t"
         "decl %0"
-        :"=a" (__res), "=&S" (d0) : "1" (s),"0" (c));
+        :"=a" (__res), "=&S" (d0)
+        :"1" (s),"0" (c)
+        :"memory");
 return __res;
 }
 
@@ -175,7 +179,9 @@ __asm__ __volatile__(
         "leal -1(%%esi),%0\n"
         "2:\ttestb %%al,%%al\n\t"
         "jne 1b"
-        :"=g" (__res), "=&S" (d0), "=&a" (d1) :"0" (0),"1" (s),"2" (c));
+        :"=g" (__res), "=&S" (d0), "=&a" (d1)
+        :"0" (0),"1" (s),"2" (c)
+        :"memory");
 return __res;
 }
 
@@ -189,7 +195,9 @@ __asm__ __volatile__(
         "scasb\n\t"
         "notl %0\n\t"
         "decl %0"
-        :"=c" (__res), "=&D" (d0) :"1" (s),"a" (0), "0" (0xffffffffu));
+        :"=c" (__res), "=&D" (d0)
+        :"1" (s),"a" (0), "0" (0xffffffffu)
+        :"memory");
 return __res;
 }
 
@@ -333,7 +341,9 @@ __asm__ __volatile__(
         "je 1f\n\t"
         "movl $1,%0\n"
         "1:\tdecl %0"
-        :"=D" (__res), "=&c" (d0) : "a" (c),"0" (cs),"1" (count));
+        :"=D" (__res), "=&c" (d0)
+        :"a" (c),"0" (cs),"1" (count)
+        :"memory");
 return __res;
 }
 
@@ -369,7 +379,7 @@ __asm__ __volatile__(
         "je 2f\n\t"
         "stosb\n"
         "2:"
-        : "=&c" (d0), "=&D" (d1)
+        :"=&c" (d0), "=&D" (d1)
         :"a" (c), "q" (count), "0" (count/4), "1" ((long) s)
         :"memory");
 return (s);     
@@ -392,7 +402,8 @@ __asm__ __volatile__(
         "jne 1b\n"
         "3:\tsubl %2,%0"
         :"=a" (__res), "=&d" (d0)
-        :"c" (s),"1" (count));
+        :"c" (s),"1" (count)
+        :"memory");
 return __res;
 }
 /* end of additional stuff */
@@ -473,7 +484,8 @@ static inline void * memscan(void * addr, int c, size_t size)
                 "dec %%edi\n"
                 "1:"
                 : "=D" (addr), "=c" (size)
-                : "0" (addr), "1" (size), "a" (c));
+                : "0" (addr), "1" (size), "a" (c)
+                : "memory");
         return addr;
 }
 
diff --git a/include/asm-i386/thread_info.h b/include/asm-i386/thread_info.h
index 2cd57271801d..95add81237ea 100644
--- a/include/asm-i386/thread_info.h
+++ b/include/asm-i386/thread_info.h
@@ -31,7 +31,7 @@ struct thread_info {
         unsigned long           flags;          /* low level flags */
         unsigned long           status;         /* thread-synchronous flags */
         __u32                   cpu;            /* current CPU */
-        __s32                   preempt_count; /* 0 => preemptable, <0 => BUG */
+        int                     preempt_count;  /* 0 => preemptable, <0 => BUG */
 
 
         mm_segment_t            addr_limit;     /* thread address space:
diff --git a/include/asm-i386/timer.h b/include/asm-i386/timer.h
index c34709849839..dcf1e07db08a 100644
--- a/include/asm-i386/timer.h
+++ b/include/asm-i386/timer.h
@@ -22,6 +22,7 @@ struct timer_opts {
         unsigned long (*get_offset)(void);
         unsigned long long (*monotonic_clock)(void);
         void (*delay)(unsigned long);
+        unsigned long (*read_timer)(void);
 };
 
 struct init_timer_opts {
@@ -52,6 +53,7 @@ extern struct init_timer_opts timer_cyclone_init;
 #endif
 
 extern unsigned long calibrate_tsc(void);
+extern unsigned long read_timer_tsc(void);
 extern void init_cpu_khz(void);
 extern int recalibrate_cpu_khz(void);
 #ifdef CONFIG_HPET_TIMER
diff --git a/include/asm-i386/timex.h b/include/asm-i386/timex.h
index b41e484c3445..292b5a68f627 100644
--- a/include/asm-i386/timex.h
+++ b/include/asm-i386/timex.h
@@ -47,6 +47,9 @@ static inline cycles_t get_cycles (void)
         return ret;
 }
 
-extern unsigned long cpu_khz;
+extern unsigned int cpu_khz;
+
+extern int read_current_timer(unsigned long *timer_value);
+#define ARCH_HAS_READ_CURRENT_TIMER     1
 
 #endif
diff --git a/include/asm-i386/topology.h b/include/asm-i386/topology.h
index 98f9e6850cba..6d0f67507b21 100644
--- a/include/asm-i386/topology.h
+++ b/include/asm-i386/topology.h
@@ -60,12 +60,8 @@ static inline int node_to_first_cpu(int node)
         return first_cpu(mask);
 }
 
-/* Returns the number of the node containing PCI bus number 'busnr' */
-static inline cpumask_t __pcibus_to_cpumask(int busnr)
-{
-        return node_to_cpumask(mp_bus_id_to_node[busnr]);
-}
-#define pcibus_to_cpumask(bus)  __pcibus_to_cpumask(bus->number)
+#define pcibus_to_node(bus) mp_bus_id_to_node[(bus)->number]
+#define pcibus_to_cpumask(bus) node_to_cpumask(pcibus_to_node(bus))
 
 /* sched_domains SD_NODE_INIT for NUMAQ machines */
 #define SD_NODE_INIT (struct sched_domain) {            \
diff --git a/include/asm-ia64/break.h b/include/asm-ia64/break.h
index 97c7b2d79600..8167828edc4b 100644
--- a/include/asm-ia64/break.h
+++ b/include/asm-ia64/break.h
@@ -12,6 +12,8 @@
  * OS-specific debug break numbers:
  */
 #define __IA64_BREAK_KDB                0x80100
+#define __IA64_BREAK_KPROBE             0x80200
+#define __IA64_BREAK_JPROBE             0x80300
 
 /*
  * OS-specific break numbers:
diff --git a/include/asm-ia64/compat.h b/include/asm-ia64/compat.h
index cc0ff0a4bdd0..0c05e5bad8a0 100644
--- a/include/asm-ia64/compat.h
+++ b/include/asm-ia64/compat.h
@@ -27,6 +27,7 @@ typedef u16		compat_ipc_pid_t;
 typedef s32             compat_daddr_t;
 typedef u32             compat_caddr_t;
 typedef __kernel_fsid_t compat_fsid_t;
+typedef s32             compat_timer_t;
 
 typedef s32             compat_int_t;
 typedef s32             compat_long_t;
diff --git a/include/asm-ia64/fcntl.h b/include/asm-ia64/fcntl.h
index d193981bb1d8..c9f8d835d0cc 100644
--- a/include/asm-ia64/fcntl.h
+++ b/include/asm-ia64/fcntl.h
@@ -81,4 +81,6 @@ struct flock {
 
 #define F_LINUX_SPECIFIC_BASE   1024
 
+#define force_o_largefile() ( ! (current->personality & PER_LINUX32) )
+
 #endif /* _ASM_IA64_FCNTL_H */
diff --git a/include/asm-ia64/kdebug.h b/include/asm-ia64/kdebug.h
new file mode 100644
index 000000000000..4d376e1663f7
--- /dev/null
+++ b/include/asm-ia64/kdebug.h
@@ -0,0 +1,61 @@
+#ifndef _IA64_KDEBUG_H
+#define _IA64_KDEBUG_H 1
+/*
+ * include/asm-ia64/kdebug.h
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright (C) Intel Corporation, 2005
+ *
+ * 2005-Apr     Rusty Lynch <rusty.lynch@intel.com> and Anil S Keshavamurthy
+ *              <anil.s.keshavamurthy@intel.com> adopted from
+ *              include/asm-x86_64/kdebug.h
+ */
+#include <linux/notifier.h>
+
+struct pt_regs;
+
+struct die_args {
+        struct pt_regs *regs;
+        const char *str;
+        long err;
+        int trapnr;
+        int signr;
+};
+
+int register_die_notifier(struct notifier_block *nb);
+extern struct notifier_block *ia64die_chain;
+
+enum die_val {
+        DIE_BREAK = 1,
+        DIE_SS,
+        DIE_PAGE_FAULT,
+};
+
+static inline int notify_die(enum die_val val, char *str, struct pt_regs *regs,
+                             long err, int trap, int sig)
+{
+        struct die_args args = {
+                .regs   = regs,
+                .str    = str,
+                .err    = err,
+                .trapnr = trap,
+                .signr  = sig
+        };
+
+        return notifier_call_chain(&ia64die_chain, val, &args);
+}
+
+#endif
diff --git a/include/asm-ia64/kprobes.h b/include/asm-ia64/kprobes.h
new file mode 100644
index 000000000000..7b700035e36d
--- /dev/null
+++ b/include/asm-ia64/kprobes.h
@@ -0,0 +1,116 @@
+#ifndef _ASM_KPROBES_H
+#define _ASM_KPROBES_H
+/*
+ *  Kernel Probes (KProbes)
+ *  include/asm-ia64/kprobes.h
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright (C) IBM Corporation, 2002, 2004
+ * Copyright (C) Intel Corporation, 2005
+ *
+ * 2005-Apr     Rusty Lynch <rusty.lynch@intel.com> and Anil S Keshavamurthy
+ *              <anil.s.keshavamurthy@intel.com> adapted from i386
+ */
+#include <linux/types.h>
+#include <linux/ptrace.h>
+#include <asm/break.h>
+
+#define BREAK_INST      (long)(__IA64_BREAK_KPROBE << 6)
+
+typedef union cmp_inst {
+        struct {
+        unsigned long long qp : 6;
+        unsigned long long p1 : 6;
+        unsigned long long c  : 1;
+        unsigned long long r2 : 7;
+        unsigned long long r3 : 7;
+        unsigned long long p2 : 6;
+        unsigned long long ta : 1;
+        unsigned long long x2 : 2;
+        unsigned long long tb : 1;
+        unsigned long long opcode : 4;
+        unsigned long long reserved : 23;
+        }f;
+        unsigned long long l;
+} cmp_inst_t;
+
+struct kprobe;
+
+typedef struct _bundle {
+        struct {
+                unsigned long long template : 5;
+                unsigned long long slot0 : 41;
+                unsigned long long slot1_p0 : 64-46;
+        } quad0;
+        struct {
+                unsigned long long slot1_p1 : 41 - (64-46);
+                unsigned long long slot2 : 41;
+        } quad1;
+} __attribute__((__aligned__(16)))  bundle_t;
+
+#define JPROBE_ENTRY(pentry)    (kprobe_opcode_t *)pentry
+
+#define SLOT0_OPCODE_SHIFT      (37)
+#define SLOT1_p1_OPCODE_SHIFT   (37 - (64-46))
+#define SLOT2_OPCODE_SHIFT      (37)
+
+#define INDIRECT_CALL_OPCODE            (1)
+#define IP_RELATIVE_CALL_OPCODE         (5)
+#define IP_RELATIVE_BRANCH_OPCODE       (4)
+#define IP_RELATIVE_PREDICT_OPCODE      (7)
+#define LONG_BRANCH_OPCODE              (0xC)
+#define LONG_CALL_OPCODE                (0xD)
+
+typedef struct kprobe_opcode {
+        bundle_t bundle;
+} kprobe_opcode_t;
+
+struct fnptr {
+        unsigned long ip;
+        unsigned long gp;
+};
+
+/* Architecture specific copy of original instruction*/
+struct arch_specific_insn {
+        /* copy of the instruction to be emulated */
+        kprobe_opcode_t insn;
+ #define INST_FLAG_FIX_RELATIVE_IP_ADDR         1
+ #define INST_FLAG_FIX_BRANCH_REG               2
+        unsigned long inst_flag;
+        unsigned short target_br_reg;
+};
+
+/* ia64 does not need this */
+static inline void jprobe_return(void)
+{
+}
+
+/* ia64 does not need this */
+static inline void arch_copy_kprobe(struct kprobe *p)
+{
+}
+
+#ifdef CONFIG_KPROBES
+extern int kprobe_exceptions_notify(struct notifier_block *self,
+                                    unsigned long val, void *data);
+#else                           /* !CONFIG_KPROBES */
+static inline int kprobe_exceptions_notify(struct notifier_block *self,
+                                           unsigned long val, void *data)
+{
+        return 0;
+}
+#endif
+#endif                          /* _ASM_KPROBES_H */
diff --git a/include/asm-ia64/mmzone.h b/include/asm-ia64/mmzone.h
index 83ca4043fc11..d32f51e3d6c2 100644
--- a/include/asm-ia64/mmzone.h
+++ b/include/asm-ia64/mmzone.h
@@ -15,6 +15,8 @@
 #include <asm/page.h>
 #include <asm/meminit.h>
 
+#ifdef CONFIG_DISCONTIGMEM
+
 static inline int pfn_to_nid(unsigned long pfn)
 {
 #ifdef CONFIG_NUMA
@@ -29,8 +31,6 @@ static inline int pfn_to_nid(unsigned long pfn)
 #endif
 }
 
-#ifdef CONFIG_DISCONTIGMEM
-
 #ifdef CONFIG_IA64_DIG /* DIG systems are small */
 # define MAX_PHYSNODE_ID        8
 # define NR_NODE_MEMBLKS        (MAX_NUMNODES * 8)
diff --git a/include/asm-ia64/param.h b/include/asm-ia64/param.h
index 6c6b679b7a9e..5e1e0d2d7baf 100644
--- a/include/asm-ia64/param.h
+++ b/include/asm-ia64/param.h
@@ -27,7 +27,7 @@
    */
 #  define HZ      32
 # else
-#  define HZ    1024
+#  define HZ    CONFIG_HZ
 # endif
 # define USER_HZ        HZ
 # define CLOCKS_PER_SEC HZ      /* frequency at which times() counts */
diff --git a/include/asm-ia64/percpu.h b/include/asm-ia64/percpu.h
index 1e87f19dad56..2b14dee29ce7 100644
--- a/include/asm-ia64/percpu.h
+++ b/include/asm-ia64/percpu.h
@@ -50,7 +50,7 @@ extern void *per_cpu_init(void);
 
 #else /* ! SMP */
 
-#define per_cpu(var, cpu)                       (*((void)cpu, &per_cpu__##var))
+#define per_cpu(var, cpu)                       (*((void)(cpu), &per_cpu__##var))
 #define __get_cpu_var(var)                      per_cpu__##var
 #define per_cpu_init()                          (__phys_per_cpu_start)
 
diff --git a/include/asm-ia64/thread_info.h b/include/asm-ia64/thread_info.h
index 8d5b7e77028c..7dc8951708a3 100644
--- a/include/asm-ia64/thread_info.h
+++ b/include/asm-ia64/thread_info.h
@@ -25,7 +25,7 @@ struct thread_info {
         __u32 flags;                    /* thread_info flags (see TIF_*) */
         __u32 cpu;                      /* current CPU */
         mm_segment_t addr_limit;        /* user-level address space limit */
-        __s32 preempt_count;            /* 0=premptable, <0=BUG; will also serve as bh-counter */
+        int preempt_count;              /* 0=premptable, <0=BUG; will also serve as bh-counter */
         struct restart_block restart_block;
         struct {
                 int signo;
diff --git a/include/asm-m32r/mmzone.h b/include/asm-m32r/mmzone.h
index ebf0228fec42..d58878ec899e 100644
--- a/include/asm-m32r/mmzone.h
+++ b/include/asm-m32r/mmzone.h
@@ -14,7 +14,6 @@ extern struct pglist_data *node_data[];
 #define NODE_DATA(nid)          (node_data[nid])
 
 #define node_localnr(pfn, nid)  ((pfn) - NODE_DATA(nid)->node_start_pfn)
-#define node_mem_map(nid)       (NODE_DATA(nid)->node_mem_map)
 #define node_start_pfn(nid)     (NODE_DATA(nid)->node_start_pfn)
 #define node_end_pfn(nid)                                               \
 ({                                                                      \
@@ -32,7 +31,7 @@ extern struct pglist_data *node_data[];
 ({                                                                      \
         unsigned long __pfn = pfn;                                      \
         int __node  = pfn_to_nid(__pfn);                                \
-        &node_mem_map(__node)[node_localnr(__pfn,__node)];              \
+        &NODE_DATA(__node)->node_mem_map[node_localnr(__pfn,__node)];   \
 })
 
 #define page_to_pfn(pg)                                                 \
diff --git a/include/asm-m32r/thread_info.h b/include/asm-m32r/thread_info.h
index 9f3a0fcf6e2b..7a6be7727a92 100644
--- a/include/asm-m32r/thread_info.h
+++ b/include/asm-m32r/thread_info.h
@@ -28,7 +28,7 @@ struct thread_info {
         unsigned long           flags;          /* low level flags */
         unsigned long           status;         /* thread-synchronous flags */
         __u32                   cpu;            /* current CPU */
-        __s32                   preempt_count; /* 0 => preemptable, <0 => BUG */
+        int                     preempt_count;  /* 0 => preemptable, <0 => BUG */
 
         mm_segment_t            addr_limit;     /* thread address space:
                                                    0-0xBFFFFFFF for user-thread
diff --git a/include/asm-m32r/topology.h b/include/asm-m32r/topology.h
index 299a89d91bde..d607eb32bd7e 100644
--- a/include/asm-m32r/topology.h
+++ b/include/asm-m32r/topology.h
@@ -1,48 +1,6 @@
-/*
- * linux/include/asm-generic/topology.h
- *
- * Written by: Matthew Dobson, IBM Corporation
- *
- * Copyright (C) 2002, IBM Corp.
- *
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT.  See the GNU General Public License for more
- * details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Send feedback to <colpatch@us.ibm.com>
- */
 #ifndef _ASM_M32R_TOPOLOGY_H
 #define _ASM_M32R_TOPOLOGY_H
 
-/* Other architectures wishing to use this simple topology API should fill
-   in the below functions as appropriate in their own <asm/topology.h> file. */
-
-#define cpu_to_node(cpu)        (0)
-
-#ifndef parent_node
-#define parent_node(node)       (0)
-#endif
-#ifndef node_to_cpumask
-#define node_to_cpumask(node)   (cpu_online_map)
-#endif
-#ifndef node_to_first_cpu
-#define node_to_first_cpu(node) (0)
-#endif
-#ifndef pcibus_to_cpumask
-#define pcibus_to_cpumask(bus)  (cpu_online_map)
-#endif
+#include <asm-generic/topology.h>
 
 #endif /* _ASM_M32R_TOPOLOGY_H */
diff --git a/include/asm-m68k/thread_info.h b/include/asm-m68k/thread_info.h
index 5f58939c59db..2aed24f6fd2e 100644
--- a/include/asm-m68k/thread_info.h
+++ b/include/asm-m68k/thread_info.h
@@ -8,7 +8,7 @@
 struct thread_info {
         struct task_struct      *task;          /* main task structure */
         struct exec_domain      *exec_domain;   /* execution domain */
-        __s32                   preempt_count; /* 0 => preemptable, <0 => BUG */
+        int                     preempt_count;  /* 0 => preemptable, <0 => BUG */
         __u32 cpu; /* should always be 0 on m68k */
         struct restart_block    restart_block;
 
diff --git a/include/asm-m68knommu/thread_info.h b/include/asm-m68knommu/thread_info.h
index c8153b7c1f5c..7b9a3fa3af5d 100644
--- a/include/asm-m68knommu/thread_info.h
+++ b/include/asm-m68knommu/thread_info.h
@@ -36,7 +36,7 @@ struct thread_info {
         struct exec_domain *exec_domain;        /* execution domain */
         unsigned long      flags;               /* low level flags */
         int                cpu;                 /* cpu we're on */
-        int                preempt_count;       /* 0 => preemptable, <0 => BUG*/
+        int                preempt_count;       /* 0 => preemptable, <0 => BUG */
         struct restart_block restart_block;
 };
 
diff --git a/include/asm-mips/compat.h b/include/asm-mips/compat.h
index dce92079e7fc..d78002afb1e1 100644
--- a/include/asm-mips/compat.h
+++ b/include/asm-mips/compat.h
@@ -29,6 +29,7 @@ typedef s32		compat_caddr_t;
 typedef struct {
         s32     val[2];
 } compat_fsid_t;
+typedef s32             compat_timer_t;
 
 typedef s32             compat_int_t;
 typedef s32             compat_long_t;
diff --git a/include/asm-mips/thread_info.h b/include/asm-mips/thread_info.h
index 768900305e2f..42fcd6f2c206 100644
--- a/include/asm-mips/thread_info.h
+++ b/include/asm-mips/thread_info.h
@@ -27,7 +27,7 @@ struct thread_info {
         struct exec_domain      *exec_domain;   /* execution domain */
         unsigned long           flags;          /* low level flags */
         __u32                   cpu;            /* current CPU */
-        __s32                   preempt_count; /* 0 => preemptable, <0 => BUG */
+        int                     preempt_count;  /* 0 => preemptable, <0 => BUG */
 
         mm_segment_t            addr_limit;     /* thread address space:
                                                    0-0xBFFFFFFF for user-thead
diff --git a/include/asm-parisc/compat.h b/include/asm-parisc/compat.h
index ca0eac647a05..7630d1ad2391 100644
--- a/include/asm-parisc/compat.h
+++ b/include/asm-parisc/compat.h
@@ -24,7 +24,7 @@ typedef u16	compat_nlink_t;
 typedef u16     compat_ipc_pid_t;
 typedef s32     compat_daddr_t;
 typedef u32     compat_caddr_t;
-typedef u32     compat_timer_t;
+typedef s32     compat_timer_t;
 
 typedef s32     compat_int_t;
 typedef s32     compat_long_t;
diff --git a/include/asm-parisc/mmzone.h b/include/asm-parisc/mmzone.h
index 928bf50c4693..595d3dce120a 100644
--- a/include/asm-parisc/mmzone.h
+++ b/include/asm-parisc/mmzone.h
@@ -19,7 +19,6 @@ extern struct node_map_data node_data[];
  */
 #define kvaddr_to_nid(kaddr)    pfn_to_nid(__pa(kaddr) >> PAGE_SHIFT)
 
-#define node_mem_map(nid)       (NODE_DATA(nid)->node_mem_map)
 #define node_start_pfn(nid)     (NODE_DATA(nid)->node_start_pfn)
 #define node_end_pfn(nid)                                               \
 ({                                                                      \
@@ -38,7 +37,7 @@ extern struct node_map_data node_data[];
 ({                                                                      \
         unsigned long __pfn = (pfn);                                    \
         int __node  = pfn_to_nid(__pfn);                                \
-        &node_mem_map(__node)[node_localnr(__pfn,__node)];              \
+        &NODE_DATA(__node)->node_mem_map[node_localnr(__pfn,__node)];   \
 })
 
 #define page_to_pfn(pg)                                                 \
diff --git a/include/asm-parisc/thread_info.h b/include/asm-parisc/thread_info.h
index fe9b7f8ae4c6..57bbb76cb6c1 100644
--- a/include/asm-parisc/thread_info.h
+++ b/include/asm-parisc/thread_info.h
@@ -12,7 +12,7 @@ struct thread_info {
         unsigned long flags;            /* thread_info flags (see TIF_*) */
         mm_segment_t addr_limit;        /* user-level address space limit */
         __u32 cpu;                      /* current CPU */
-        __s32 preempt_count;            /* 0=premptable, <0=BUG; will also serve as bh-counter */
+        int preempt_count;              /* 0=premptable, <0=BUG; will also serve as bh-counter */
         struct restart_block restart_block;
 };
 
diff --git a/include/asm-ppc/thread_info.h b/include/asm-ppc/thread_info.h
index e3b5284a6f91..27903db42efc 100644
--- a/include/asm-ppc/thread_info.h
+++ b/include/asm-ppc/thread_info.h
@@ -20,7 +20,8 @@ struct thread_info {
         unsigned long           flags;          /* low level flags */
         unsigned long           local_flags;    /* non-racy flags */
         int                     cpu;            /* cpu we're on */
-        int                     preempt_count;
+        int                     preempt_count;  /* 0 => preemptable,
+                                                   <0 => BUG */
         struct restart_block    restart_block;
 };
 
diff --git a/include/asm-ppc64/compat.h b/include/asm-ppc64/compat.h
index 09c28d28ce6c..12414f5fc666 100644
--- a/include/asm-ppc64/compat.h
+++ b/include/asm-ppc64/compat.h
@@ -26,6 +26,7 @@ typedef s32		compat_daddr_t;
 typedef u32             compat_caddr_t;
 typedef __kernel_fsid_t compat_fsid_t;
 typedef s32             compat_key_t;
+typedef s32             compat_timer_t;
 
 typedef s32             compat_int_t;
 typedef s32             compat_long_t;
diff --git a/include/asm-ppc64/machdep.h b/include/asm-ppc64/machdep.h
index 5d3cd9d042e2..553b2ea23bed 100644
--- a/include/asm-ppc64/machdep.h
+++ b/include/asm-ppc64/machdep.h
@@ -76,6 +76,7 @@ struct machdep_calls {
         void            (*tce_flush)(struct iommu_table *tbl);
         void            (*iommu_dev_setup)(struct pci_dev *dev);
         void            (*iommu_bus_setup)(struct pci_bus *bus);
+        void            (*irq_bus_setup)(struct pci_bus *bus);
 
         int             (*probe)(int platform);
         void            (*setup_arch)(void);
diff --git a/include/asm-ppc64/mmu.h b/include/asm-ppc64/mmu.h
index c78282a67d8e..9d03a98a4fa3 100644
--- a/include/asm-ppc64/mmu.h
+++ b/include/asm-ppc64/mmu.h
@@ -47,9 +47,10 @@
 #define SLB_VSID_KS             ASM_CONST(0x0000000000000800)
 #define SLB_VSID_KP             ASM_CONST(0x0000000000000400)
 #define SLB_VSID_N              ASM_CONST(0x0000000000000200) /* no-execute */
-#define SLB_VSID_L              ASM_CONST(0x0000000000000100) /* largepage 16M */
+#define SLB_VSID_L              ASM_CONST(0x0000000000000100) /* largepage */
 #define SLB_VSID_C              ASM_CONST(0x0000000000000080) /* class */
-
+#define SLB_VSID_LS             ASM_CONST(0x0000000000000070) /* size of largepage */
+ 
 #define SLB_VSID_KERNEL         (SLB_VSID_KP|SLB_VSID_C)
 #define SLB_VSID_USER           (SLB_VSID_KP|SLB_VSID_KS)
 
diff --git a/include/asm-ppc64/mmzone.h b/include/asm-ppc64/mmzone.h
index 0619a41a3c9d..ed473f4b0152 100644
--- a/include/asm-ppc64/mmzone.h
+++ b/include/asm-ppc64/mmzone.h
@@ -10,9 +10,20 @@
 #include <linux/config.h>
 #include <asm/smp.h>
 
-#ifdef CONFIG_DISCONTIGMEM
+/* generic non-linear memory support:
+ *
+ * 1) we will not split memory into more chunks than will fit into the
+ *    flags field of the struct page
+ */
+
+
+#ifdef CONFIG_NEED_MULTIPLE_NODES
 
 extern struct pglist_data *node_data[];
+/*
+ * Return a pointer to the node data for node n.
+ */
+#define NODE_DATA(nid)          (node_data[nid])
 
 /*
  * Following are specific to this numa platform.
@@ -47,36 +58,32 @@ static inline int pa_to_nid(unsigned long pa)
         return nid;
 }
 
-#define pfn_to_nid(pfn)         pa_to_nid((pfn) << PAGE_SHIFT)
-
-/*
- * Return a pointer to the node data for node n.
- */
-#define NODE_DATA(nid)          (node_data[nid])
-
 #define node_localnr(pfn, nid)  ((pfn) - NODE_DATA(nid)->node_start_pfn)
 
 /*
  * Following are macros that each numa implmentation must define.
  */
 
-/*
- * Given a kernel address, find the home node of the underlying memory.
- */
-#define kvaddr_to_nid(kaddr)    pa_to_nid(__pa(kaddr))
-
-#define node_mem_map(nid)       (NODE_DATA(nid)->node_mem_map)
 #define node_start_pfn(nid)     (NODE_DATA(nid)->node_start_pfn)
 #define node_end_pfn(nid)       (NODE_DATA(nid)->node_end_pfn)
 
 #define local_mapnr(kvaddr) \
         ( (__pa(kvaddr) >> PAGE_SHIFT) - node_start_pfn(kvaddr_to_nid(kvaddr)) 
 
+#ifdef CONFIG_DISCONTIGMEM
+
+/*
+ * Given a kernel address, find the home node of the underlying memory.
+ */
+#define kvaddr_to_nid(kaddr)    pa_to_nid(__pa(kaddr))
+
+#define pfn_to_nid(pfn)         pa_to_nid((unsigned long)(pfn) << PAGE_SHIFT)
+
 /* Written this way to avoid evaluating arguments twice */
 #define discontigmem_pfn_to_page(pfn) \
 ({ \
         unsigned long __tmp = pfn; \
-        (node_mem_map(pfn_to_nid(__tmp)) + \
+        (NODE_DATA(pfn_to_nid(__tmp))->node_mem_map + \
          node_localnr(__tmp, pfn_to_nid(__tmp))); \
 })
 
@@ -91,4 +98,11 @@ static inline int pa_to_nid(unsigned long pa)
 #define discontigmem_pfn_valid(pfn)             ((pfn) < num_physpages)
 
 #endif /* CONFIG_DISCONTIGMEM */
+
+#endif /* CONFIG_NEED_MULTIPLE_NODES */
+
+#ifdef CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID
+#define early_pfn_to_nid(pfn)  pa_to_nid(((unsigned long)pfn) << PAGE_SHIFT)
+#endif
+
 #endif /* _ASM_MMZONE_H_ */
diff --git a/include/asm-ppc64/nvram.h b/include/asm-ppc64/nvram.h
index 4e6dd370d936..dfaa21566c9a 100644
--- a/include/asm-ppc64/nvram.h
+++ b/include/asm-ppc64/nvram.h
@@ -70,6 +70,7 @@ extern struct nvram_partition *nvram_find_partition(int sig, const char *name);
 
 extern int pSeries_nvram_init(void);
 extern int pmac_nvram_init(void);
+extern int bpa_nvram_init(void);
 
 /* PowerMac specific nvram stuffs */
 
diff --git a/include/asm-ppc64/page.h b/include/asm-ppc64/page.h
index 257d87eb7c34..a5893a305a09 100644
--- a/include/asm-ppc64/page.h
+++ b/include/asm-ppc64/page.h
@@ -217,7 +217,8 @@ extern u64 ppc64_pft_size;		/* Log 2 of page table size */
 #define page_to_pfn(page)       discontigmem_page_to_pfn(page)
 #define pfn_to_page(pfn)        discontigmem_pfn_to_page(pfn)
 #define pfn_valid(pfn)          discontigmem_pfn_valid(pfn)
-#else
+#endif
+#ifdef CONFIG_FLATMEM
 #define pfn_to_page(pfn)        (mem_map + (pfn))
 #define page_to_pfn(page)       ((unsigned long)((page) - mem_map))
 #define pfn_valid(pfn)          ((pfn) < max_mapnr)
diff --git a/include/asm-ppc64/ppc32.h b/include/asm-ppc64/ppc32.h
index 1d0404897550..6b44a8caf395 100644
--- a/include/asm-ppc64/ppc32.h
+++ b/include/asm-ppc64/ppc32.h
@@ -32,7 +32,7 @@ typedef struct compat_siginfo {
 
                 /* POSIX.1b timers */
                 struct {
-                        timer_t _tid;                   /* timer id */
+                        compat_timer_t _tid;                    /* timer id */
                         int _overrun;                   /* overrun count */
                         compat_sigval_t _sigval;                /* same as below */
                         int _sys_private;               /* not to be passed to user */
diff --git a/include/asm-ppc64/processor.h b/include/asm-ppc64/processor.h
index 3084099086a8..af28aa55d8c1 100644
--- a/include/asm-ppc64/processor.h
+++ b/include/asm-ppc64/processor.h
@@ -138,8 +138,16 @@
 #define SPRN_NIADORM    0x3F3   /* Hardware Implementation Register 2 */
 #define SPRN_HID4       0x3F4   /* 970 HID4 */
 #define SPRN_HID5       0x3F6   /* 970 HID5 */
-#define SPRN_TSC        0x3FD   /* Thread switch control */
-#define SPRN_TST        0x3FC   /* Thread switch timeout */
+#define SPRN_HID6       0x3F9   /* BE HID 6 */
+#define   HID6_LB       (0x0F<<12) /* Concurrent Large Page Modes */
+#define   HID6_DLP      (1<<20) /* Disable all large page modes (4K only) */
+#define SPRN_TSCR       0x399   /* Thread switch control on BE */
+#define SPRN_TTR        0x39A   /* Thread switch timeout on BE */
+#define   TSCR_DEC_ENABLE       0x200000 /* Decrementer Interrupt */
+#define   TSCR_EE_ENABLE        0x100000 /* External Interrupt */
+#define   TSCR_EE_BOOST         0x080000 /* External Interrupt Boost */
+#define SPRN_TSC        0x3FD   /* Thread switch control on others */
+#define SPRN_TST        0x3FC   /* Thread switch timeout on others */
 #define SPRN_L2CR       0x3F9   /* Level 2 Cache Control Regsiter */
 #define SPRN_LR         0x008   /* Link Register */
 #define SPRN_PIR        0x3FF   /* Processor Identification Register */
@@ -259,6 +267,7 @@
 #define PV_970FX        0x003C
 #define PV_630          0x0040
 #define PV_630p         0x0041
+#define PV_BE           0x0070
 
 /* Platforms supported by PPC64 */
 #define PLATFORM_PSERIES      0x0100
@@ -267,6 +276,7 @@
 #define PLATFORM_LPAR         0x0001
 #define PLATFORM_POWERMAC     0x0400
 #define PLATFORM_MAPLE        0x0500
+#define PLATFORM_BPA          0x1000
 
 /* Compatibility with drivers coming from PPC32 world */
 #define _machine        (systemcfg->platform)
@@ -278,6 +288,7 @@
 #define IC_INVALID    0
 #define IC_OPEN_PIC   1
 #define IC_PPC_XIC    2
+#define IC_BPA_IIC    3
 
 #define XGLUE(a,b) a##b
 #define GLUE(a,b) XGLUE(a,b)
diff --git a/include/asm-ppc64/rtas.h b/include/asm-ppc64/rtas.h
index a8ab0e9db84a..e7d1b5222802 100644
--- a/include/asm-ppc64/rtas.h
+++ b/include/asm-ppc64/rtas.h
@@ -186,8 +186,14 @@ extern int rtas_get_sensor(int sensor, int index, int *state);
 extern int rtas_get_power_level(int powerdomain, int *level);
 extern int rtas_set_power_level(int powerdomain, int level, int *setlevel);
 extern int rtas_set_indicator(int indicator, int index, int new_value);
+extern void rtas_progress(char *s, unsigned short hex);
 extern void rtas_initialize(void);
 
+struct rtc_time;
+extern void rtas_get_boot_time(struct rtc_time *rtc_time);
+extern void rtas_get_rtc_time(struct rtc_time *rtc_time);
+extern int rtas_set_rtc_time(struct rtc_time *rtc_time);
+
 /* Given an RTAS status code of 9900..9905 compute the hinted delay */
 unsigned int rtas_extended_busy_delay_time(int status);
 static inline int rtas_is_extended_busy(int status)
diff --git a/include/asm-ppc64/smp.h b/include/asm-ppc64/smp.h
index 8115ecb8feee..d86f742e9a21 100644
--- a/include/asm-ppc64/smp.h
+++ b/include/asm-ppc64/smp.h
@@ -85,6 +85,14 @@ extern void smp_generic_take_timebase(void);
 
 extern struct smp_ops_t *smp_ops;
 
+#ifdef CONFIG_PPC_PSERIES
+void vpa_init(int cpu);
+#else
+static inline void vpa_init(int cpu)
+{
+}
+#endif /* CONFIG_PPC_PSERIES */
+
 #endif /* __ASSEMBLY__ */
 
 #endif /* !(_PPC64_SMP_H) */
diff --git a/include/asm-ppc64/sparsemem.h b/include/asm-ppc64/sparsemem.h
new file mode 100644
index 000000000000..c5bd47e57f17
--- /dev/null
+++ b/include/asm-ppc64/sparsemem.h
@@ -0,0 +1,16 @@
+#ifndef _ASM_PPC64_SPARSEMEM_H
+#define _ASM_PPC64_SPARSEMEM_H 1
+
+#ifdef CONFIG_SPARSEMEM
+/*
+ * SECTION_SIZE_BITS            2^N: how big each section will be
+ * MAX_PHYSADDR_BITS            2^N: how much physical address space we have
+ * MAX_PHYSMEM_BITS             2^N: how much memory we can have in that space
+ */
+#define SECTION_SIZE_BITS       24
+#define MAX_PHYSADDR_BITS       38
+#define MAX_PHYSMEM_BITS        36
+
+#endif /* CONFIG_SPARSEMEM */
+
+#endif /* _ASM_PPC64_SPARSEMEM_H */
diff --git a/include/asm-ppc64/thread_info.h b/include/asm-ppc64/thread_info.h
index 48b7900e90ec..0494df6fca74 100644
--- a/include/asm-ppc64/thread_info.h
+++ b/include/asm-ppc64/thread_info.h
@@ -24,7 +24,7 @@ struct thread_info {
         struct task_struct *task;               /* main task structure */
         struct exec_domain *exec_domain;        /* execution domain */
         int             cpu;                    /* cpu we're on */
-        int             preempt_count;
+        int             preempt_count;          /* 0 => preemptable, <0 => BUG */
         struct restart_block restart_block;
         /* set by force_successful_syscall_return */
         unsigned char   syscall_noerror;
diff --git a/include/asm-ppc64/time.h b/include/asm-ppc64/time.h
index 8d6e3760ee10..c6c762cad8b0 100644
--- a/include/asm-ppc64/time.h
+++ b/include/asm-ppc64/time.h
@@ -34,6 +34,15 @@ struct rtc_time;
 extern void to_tm(int tim, struct rtc_time * tm);
 extern time_t last_rtc_update;
 
+void generic_calibrate_decr(void);
+void setup_default_decr(void);
+
+/* Some sane defaults: 125 MHz timebase, 1GHz processor */
+extern unsigned long ppc_proc_freq;
+#define DEFAULT_PROC_FREQ       (DEFAULT_TB_FREQ * 8)
+extern unsigned long ppc_tb_freq;
+#define DEFAULT_TB_FREQ         125000000UL
+
 /*
  * By putting all of this stuff into a single struct we 
  * reduce the number of cache lines touched by do_gettimeofday.
diff --git a/include/asm-ppc64/topology.h b/include/asm-ppc64/topology.h
index d58d9dd79998..fcdcfd26a26b 100644
--- a/include/asm-ppc64/topology.h
+++ b/include/asm-ppc64/topology.h
@@ -59,10 +59,8 @@ static inline int node_to_first_cpu(int node)
         .nr_balance_failed      = 0,                    \
 }
 
-#else /* !CONFIG_NUMA */
+#endif /* CONFIG_NUMA */
 
 #include <asm-generic/topology.h>
 
-#endif /* CONFIG_NUMA */
-
 #endif /* _ASM_PPC64_TOPOLOGY_H */
diff --git a/include/asm-s390/thread_info.h b/include/asm-s390/thread_info.h
index aade85c53a63..fe101d41e849 100644
--- a/include/asm-s390/thread_info.h
+++ b/include/asm-s390/thread_info.h
@@ -50,7 +50,7 @@ struct thread_info {
         struct exec_domain      *exec_domain;   /* execution domain */
         unsigned long           flags;          /* low level flags */
         unsigned int            cpu;            /* current CPU */
-        unsigned int            preempt_count; /* 0 => preemptable */
+        int                     preempt_count;  /* 0 => preemptable, <0 => BUG */
         struct restart_block    restart_block;
 };
 
diff --git a/include/asm-sh/thread_info.h b/include/asm-sh/thread_info.h
index 4bbbd9f3c37e..46080cefaff8 100644
--- a/include/asm-sh/thread_info.h
+++ b/include/asm-sh/thread_info.h
@@ -20,7 +20,7 @@ struct thread_info {
         struct exec_domain      *exec_domain;   /* execution domain */
         __u32                   flags;          /* low level flags */
         __u32                   cpu;
-        __s32                   preempt_count; /* 0 => preemptable, <0 => BUG */
+        int                     preempt_count; /* 0 => preemptable, <0 => BUG */
         struct restart_block    restart_block;
         __u8                    supervisor_stack[0];
 };
diff --git a/include/asm-sh64/thread_info.h b/include/asm-sh64/thread_info.h
index 8a32d6bd0b79..10f024c6a2e3 100644
--- a/include/asm-sh64/thread_info.h
+++ b/include/asm-sh64/thread_info.h
@@ -22,7 +22,7 @@ struct thread_info {
         struct exec_domain      *exec_domain;   /* execution domain */
         unsigned long           flags;          /* low level flags */
         /* Put the 4 32-bit fields together to make asm offsetting easier. */
-        __s32                   preempt_count; /* 0 => preemptable, <0 => BUG */
+        int                     preempt_count;  /* 0 => preemptable, <0 => BUG */
         __u16                   cpu;
 
         mm_segment_t            addr_limit;
diff --git a/include/asm-sparc/thread_info.h b/include/asm-sparc/thread_info.h
index 104f03c55416..ff6ccb3d24c6 100644
--- a/include/asm-sparc/thread_info.h
+++ b/include/asm-sparc/thread_info.h
@@ -30,9 +30,9 @@ struct thread_info {
         struct task_struct      *task;          /* main task structure */
         struct exec_domain      *exec_domain;   /* execution domain */
         unsigned long           flags;          /* low level flags */
-
         int                     cpu;            /* cpu we're on */
-        int                     preempt_count;
+        int                     preempt_count;  /* 0 => preemptable,
+                                                   <0 => BUG */
         int                     softirq_count;
         int                     hardirq_count;
 
diff --git a/include/asm-sparc64/compat.h b/include/asm-sparc64/compat.h
index 22f58055b8ab..b59122dd176d 100644
--- a/include/asm-sparc64/compat.h
+++ b/include/asm-sparc64/compat.h
@@ -25,6 +25,7 @@ typedef s32		compat_daddr_t;
 typedef u32             compat_caddr_t;
 typedef __kernel_fsid_t compat_fsid_t;
 typedef s32             compat_key_t;
+typedef s32             compat_timer_t;
 
 typedef s32             compat_int_t;
 typedef s32             compat_long_t;
diff --git a/include/asm-sparc64/thread_info.h b/include/asm-sparc64/thread_info.h
index 517caaba1c87..0cd652956929 100644
--- a/include/asm-sparc64/thread_info.h
+++ b/include/asm-sparc64/thread_info.h
@@ -46,7 +46,7 @@ struct thread_info {
         unsigned long           fault_address;
         struct pt_regs          *kregs;
         struct exec_domain      *exec_domain;
-        int                     preempt_count;
+        int                     preempt_count;  /* 0 => preemptable, <0 => BUG */
         int                     __pad;
 
         unsigned long           *utraps;
diff --git a/include/asm-um/thread_info.h b/include/asm-um/thread_info.h
index 1feaaf148ef1..97267f059ef5 100644
--- a/include/asm-um/thread_info.h
+++ b/include/asm-um/thread_info.h
@@ -17,7 +17,7 @@ struct thread_info {
         struct exec_domain      *exec_domain;   /* execution domain */
         unsigned long           flags;          /* low level flags */
         __u32                   cpu;            /* current CPU */
-        __s32                   preempt_count;  /* 0 => preemptable, 
+        int                     preempt_count;  /* 0 => preemptable,
                                                    <0 => BUG */
         mm_segment_t            addr_limit;     /* thread address space:
                                                    0-0xBFFFFFFF for user
diff --git a/include/asm-v850/thread_info.h b/include/asm-v850/thread_info.h
index e2ef44593752..e4cfad94a553 100644
--- a/include/asm-v850/thread_info.h
+++ b/include/asm-v850/thread_info.h
@@ -30,7 +30,8 @@ struct thread_info {
         struct exec_domain      *exec_domain;   /* execution domain */
         unsigned long           flags;          /* low level flags */
         int                     cpu;            /* cpu we're on */
-        int                     preempt_count;
+        int                     preempt_count;  /* 0 => preemptable,
+                                                   <0 => BUG */
         struct restart_block    restart_block;
 };
 
diff --git a/include/asm-x86_64/bitops.h b/include/asm-x86_64/bitops.h
index 5dd7727c756b..a31bb99be53f 100644
--- a/include/asm-x86_64/bitops.h
+++ b/include/asm-x86_64/bitops.h
@@ -411,8 +411,6 @@ static __inline__ int ffs(int x)
 /* find last set bit */
 #define fls(x) generic_fls(x)
 
-#define ARCH_HAS_ATOMIC_UNSIGNED 1
-
 #endif /* __KERNEL__ */
 
 #endif /* _X86_64_BITOPS_H */
diff --git a/include/asm-x86_64/ia32.h b/include/asm-x86_64/ia32.h
index c0a7717923ed..6efa00fe4e7b 100644
--- a/include/asm-x86_64/ia32.h
+++ b/include/asm-x86_64/ia32.h
@@ -94,7 +94,7 @@ typedef struct compat_siginfo{
 
                 /* POSIX.1b timers */
                 struct {
-                        int _tid;               /* timer id */
+                        compat_timer_t _tid;    /* timer id */
                         int _overrun;           /* overrun count */
                         compat_sigval_t _sigval;        /* same as below */
                         int _sys_private;       /* not to be passed to user */
diff --git a/include/asm-x86_64/io.h b/include/asm-x86_64/io.h
index 94202703fae2..37fc3f149a5a 100644
--- a/include/asm-x86_64/io.h
+++ b/include/asm-x86_64/io.h
@@ -124,12 +124,7 @@ extern inline void * phys_to_virt(unsigned long address)
 /*
  * Change "struct page" to physical address.
  */
-#ifdef CONFIG_DISCONTIGMEM
-#include <asm/mmzone.h>
 #define page_to_phys(page)    ((dma_addr_t)page_to_pfn(page) << PAGE_SHIFT)
-#else
-#define page_to_phys(page)      ((page - mem_map) << PAGE_SHIFT)
-#endif
 
 #include <asm-generic/iomap.h>
 
diff --git a/include/asm-x86_64/kprobes.h b/include/asm-x86_64/kprobes.h
index bfea52d516f8..6d6d883fdf6d 100644
--- a/include/asm-x86_64/kprobes.h
+++ b/include/asm-x86_64/kprobes.h
@@ -38,6 +38,9 @@ typedef u8 kprobe_opcode_t;
         : (((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR)))
 
 #define JPROBE_ENTRY(pentry)    (kprobe_opcode_t *)pentry
+#define ARCH_SUPPORTS_KRETPROBES
+
+void kretprobe_trampoline(void);
 
 /* Architecture specific copy of original instruction*/
 struct arch_specific_insn {
diff --git a/include/asm-x86_64/mmzone.h b/include/asm-x86_64/mmzone.h
index d95b7c240831..768413751b34 100644
--- a/include/asm-x86_64/mmzone.h
+++ b/include/asm-x86_64/mmzone.h
@@ -6,7 +6,7 @@
 
 #include <linux/config.h>
 
-#ifdef CONFIG_DISCONTIGMEM
+#ifdef CONFIG_NUMA
 
 #define VIRTUAL_BUG_ON(x) 
 
@@ -30,27 +30,23 @@ static inline __attribute__((pure)) int phys_to_nid(unsigned long addr)
         return nid; 
 } 
 
-#define pfn_to_nid(pfn) phys_to_nid((unsigned long)(pfn) << PAGE_SHIFT)
-
-#define kvaddr_to_nid(kaddr)    phys_to_nid(__pa(kaddr))
 #define NODE_DATA(nid)          (node_data[nid])
 
-#define node_mem_map(nid)       (NODE_DATA(nid)->node_mem_map)
-
-#define node_mem_map(nid)       (NODE_DATA(nid)->node_mem_map)
 #define node_start_pfn(nid)     (NODE_DATA(nid)->node_start_pfn)
 #define node_end_pfn(nid)       (NODE_DATA(nid)->node_start_pfn + \
                                  NODE_DATA(nid)->node_spanned_pages)
 
-#define local_mapnr(kvaddr) \
-        ( (__pa(kvaddr) >> PAGE_SHIFT) - node_start_pfn(kvaddr_to_nid(kvaddr)) )
+#ifdef CONFIG_DISCONTIGMEM
+
+#define pfn_to_nid(pfn) phys_to_nid((unsigned long)(pfn) << PAGE_SHIFT)
+#define kvaddr_to_nid(kaddr)    phys_to_nid(__pa(kaddr))
 
 /* AK: this currently doesn't deal with invalid addresses. We'll see 
    if the 2.5 kernel doesn't pass them
    (2.4 used to). */
 #define pfn_to_page(pfn) ({ \
         int nid = phys_to_nid(((unsigned long)(pfn)) << PAGE_SHIFT);    \
-        ((pfn) - node_start_pfn(nid)) + node_mem_map(nid);              \
+        ((pfn) - node_start_pfn(nid)) + NODE_DATA(nid)->node_mem_map;   \
 })
 
 #define page_to_pfn(page) \
@@ -60,4 +56,8 @@ static inline __attribute__((pure)) int phys_to_nid(unsigned long addr)
                         ({ u8 nid__ = pfn_to_nid(pfn); \
                            nid__ != 0xff && (pfn) >= node_start_pfn(nid__) && (pfn) <= node_end_pfn(nid__); }))
 #endif
+
+#define local_mapnr(kvaddr) \
+        ( (__pa(kvaddr) >> PAGE_SHIFT) - node_start_pfn(kvaddr_to_nid(kvaddr)) )
+#endif
 #endif
diff --git a/include/asm-x86_64/msr.h b/include/asm-x86_64/msr.h
index 513e52c71821..bc700232728d 100644
--- a/include/asm-x86_64/msr.h
+++ b/include/asm-x86_64/msr.h
@@ -57,11 +57,6 @@
      (val) = ((unsigned long)__a) | (((unsigned long)__d)<<32); \
 } while(0)
 
-#define rdpmc(counter,low,high) \
-     __asm__ __volatile__("rdpmc" \
-                          : "=a" (low), "=d" (high) \
-                          : "c" (counter))
-
 #define write_tsc(val1,val2) wrmsr(0x10, val1, val2)
 
 #define rdpmc(counter,low,high) \
diff --git a/include/asm-x86_64/page.h b/include/asm-x86_64/page.h
index 9ce338c3a71e..60130f4ca986 100644
--- a/include/asm-x86_64/page.h
+++ b/include/asm-x86_64/page.h
@@ -119,7 +119,9 @@ extern __inline__ int get_order(unsigned long size)
           __pa(v); })
 
 #define __va(x)                 ((void *)((unsigned long)(x)+PAGE_OFFSET))
-#ifndef CONFIG_DISCONTIGMEM
+#define __boot_va(x)            __va(x)
+#define __boot_pa(x)            __pa(x)
+#ifdef CONFIG_FLATMEM
 #define pfn_to_page(pfn)        (mem_map + (pfn))
 #define page_to_pfn(page)       ((unsigned long)((page) - mem_map))
 #define pfn_valid(pfn)          ((pfn) < max_mapnr)
diff --git a/include/asm-x86_64/param.h b/include/asm-x86_64/param.h
index b707f0568c9e..40b11937180d 100644
--- a/include/asm-x86_64/param.h
+++ b/include/asm-x86_64/param.h
@@ -1,9 +1,11 @@
+#include <linux/config.h>
+
 #ifndef _ASMx86_64_PARAM_H
 #define _ASMx86_64_PARAM_H
 
 #ifdef __KERNEL__
-# define HZ            1000            /* Internal kernel timer frequency */
-# define USER_HZ       100          /* .. some user interfaces are in "ticks */
+# define HZ            CONFIG_HZ        /* Internal kernel timer frequency */
+# define USER_HZ       100              /* .. some user interfaces are in "ticks */
 #define CLOCKS_PER_SEC        (USER_HZ)       /* like times() */
 #endif
 
diff --git a/include/asm-x86_64/percpu.h b/include/asm-x86_64/percpu.h
index 415d73f3c8ef..9c71855736fb 100644
--- a/include/asm-x86_64/percpu.h
+++ b/include/asm-x86_64/percpu.h
@@ -39,7 +39,7 @@ extern void setup_per_cpu_areas(void);
 #define DEFINE_PER_CPU(type, name) \
     __typeof__(type) per_cpu__##name
 
-#define per_cpu(var, cpu)                       (*((void)cpu, &per_cpu__##var))
+#define per_cpu(var, cpu)                       (*((void)(cpu), &per_cpu__##var))
 #define __get_cpu_var(var)                      per_cpu__##var
 
 #endif  /* SMP */
diff --git a/include/asm-x86_64/processor.h b/include/asm-x86_64/processor.h
index 8b55f139968f..106f666517bb 100644
--- a/include/asm-x86_64/processor.h
+++ b/include/asm-x86_64/processor.h
@@ -280,6 +280,14 @@ struct thread_struct {
         set_fs(USER_DS);                                                         \
 } while(0) 
 
+#define get_debugreg(var, register)                             \
+                __asm__("movq %%db" #register ", %0"            \
+                        :"=r" (var))
+#define set_debugreg(value, register)                   \
+                __asm__("movq %0,%%db" #register                \
+                        : /* no output */                       \
+                        :"r" (value))
+
 struct task_struct;
 struct mm_struct;
 
diff --git a/include/asm-x86_64/ptrace.h b/include/asm-x86_64/ptrace.h
index 5bbc8d3141c8..ca6f15ff61d4 100644
--- a/include/asm-x86_64/ptrace.h
+++ b/include/asm-x86_64/ptrace.h
@@ -82,6 +82,7 @@ struct pt_regs {
 
 #if defined(__KERNEL__) && !defined(__ASSEMBLY__) 
 #define user_mode(regs) (!!((regs)->cs & 3))
+#define user_mode_vm(regs) user_mode(regs)
 #define instruction_pointer(regs) ((regs)->rip)
 extern unsigned long profile_pc(struct pt_regs *regs);
 void signal_fault(struct pt_regs *regs, void __user *frame, char *where);
diff --git a/include/asm-x86_64/sparsemem.h b/include/asm-x86_64/sparsemem.h
new file mode 100644
index 000000000000..dabb16714a71
--- /dev/null
+++ b/include/asm-x86_64/sparsemem.h
@@ -0,0 +1,26 @@
+#ifndef _ASM_X86_64_SPARSEMEM_H
+#define _ASM_X86_64_SPARSEMEM_H 1
+
+#ifdef CONFIG_SPARSEMEM
+
+/*
+ * generic non-linear memory support:
+ *
+ * 1) we will not split memory into more chunks than will fit into the flags
+ *    field of the struct page
+ *
+ * SECTION_SIZE_BITS            2^n: size of each section
+ * MAX_PHYSADDR_BITS            2^n: max size of physical address space
+ * MAX_PHYSMEM_BITS             2^n: how much memory we can have in that space
+ *
+ */
+
+#define SECTION_SIZE_BITS       27 /* matt - 128 is convenient right now */
+#define MAX_PHYSADDR_BITS       40
+#define MAX_PHYSMEM_BITS        40
+
+extern int early_pfn_to_nid(unsigned long pfn);
+
+#endif /* CONFIG_SPARSEMEM */
+
+#endif /* _ASM_X86_64_SPARSEMEM_H */
diff --git a/include/asm-x86_64/thread_info.h b/include/asm-x86_64/thread_info.h
index f4b3b249639c..08eb6e4f3737 100644
--- a/include/asm-x86_64/thread_info.h
+++ b/include/asm-x86_64/thread_info.h
@@ -29,7 +29,7 @@ struct thread_info {
         __u32                   flags;          /* low level flags */
         __u32                   status;         /* thread synchronous flags */
         __u32                   cpu;            /* current CPU */
-        int                     preempt_count;
+        int                     preempt_count;  /* 0 => preemptable, <0 => BUG */
 
         mm_segment_t            addr_limit;     
         struct restart_block    restart_block;
diff --git a/include/asm-x86_64/timex.h b/include/asm-x86_64/timex.h
index 34f31a18f90b..24ecf6a637cb 100644
--- a/include/asm-x86_64/timex.h
+++ b/include/asm-x86_64/timex.h
@@ -26,6 +26,9 @@ static inline cycles_t get_cycles (void)
 
 extern unsigned int cpu_khz;
 
+extern int read_current_timer(unsigned long *timer_value);
+#define ARCH_HAS_READ_CURRENT_TIMER     1
+
 extern struct vxtime_data vxtime;
 
 #endif
diff --git a/include/asm-x86_64/topology.h b/include/asm-x86_64/topology.h
index 67f24e0ea819..8f77e9f6bc23 100644
--- a/include/asm-x86_64/topology.h
+++ b/include/asm-x86_64/topology.h
@@ -3,7 +3,7 @@
 
 #include <linux/config.h>
 
-#ifdef CONFIG_DISCONTIGMEM
+#ifdef CONFIG_NUMA
 
 #include <asm/mpspec.h>
 #include <asm/bitops.h>
@@ -13,8 +13,8 @@
 extern cpumask_t cpu_online_map;
 
 extern unsigned char cpu_to_node[];
+extern unsigned char pci_bus_to_node[];
 extern cpumask_t     node_to_cpumask[];
-extern cpumask_t pci_bus_to_cpumask[];
 
 #ifdef CONFIG_ACPI_NUMA
 extern int __node_distance(int, int);
@@ -26,18 +26,9 @@ extern int __node_distance(int, int);
 #define parent_node(node)               (node)
 #define node_to_first_cpu(node)         (__ffs(node_to_cpumask[node]))
 #define node_to_cpumask(node)           (node_to_cpumask[node])
+#define pcibus_to_node(bus)             pci_bus_to_node[(bus)->number]
+#define pcibus_to_cpumask(bus)          node_to_cpumask(pcibus_to_node(bus));
 
-static inline cpumask_t __pcibus_to_cpumask(int bus)
-{
-        cpumask_t busmask = pci_bus_to_cpumask[bus];
-        cpumask_t online = cpu_online_map;
-        cpumask_t res;
-        cpus_and(res, busmask, online);
-        return res;
-}
-#define pcibus_to_cpumask(bus) __pcibus_to_cpumask(bus->number)
-
-#ifdef CONFIG_NUMA
 /* sched_domains SD_NODE_INIT for x86_64 machines */
 #define SD_NODE_INIT (struct sched_domain) {            \
         .span                   = CPU_MASK_NONE,        \
@@ -59,7 +50,6 @@ static inline cpumask_t __pcibus_to_cpumask(int bus)
         .balance_interval       = 1,                    \
         .nr_balance_failed      = 0,                    \
 }
-#endif
 
 #endif
 
diff --git a/include/asm-xtensa/a.out.h b/include/asm-xtensa/a.out.h
new file mode 100644
index 000000000000..3be701dfe098
--- /dev/null
+++ b/include/asm-xtensa/a.out.h
@@ -0,0 +1,33 @@
+/*
+ * include/asm-xtensa/addrspace.h
+ *
+ * Dummy a.out file. Xtensa does not support the a.out format, but the kernel
+ * seems to depend on it.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_A_OUT_H
+#define _XTENSA_A_OUT_H
+
+/* Note: the kernel needs the a.out definitions, even if only ELF is used. */
+
+#define STACK_TOP       TASK_SIZE
+
+struct exec
+{
+  unsigned long a_info;
+  unsigned a_text;
+  unsigned a_data;
+  unsigned a_bss;
+  unsigned a_syms;
+  unsigned a_entry;
+  unsigned a_trsize;
+  unsigned a_drsize;
+};
+
+#endif /* _XTENSA_A_OUT_H */
diff --git a/include/asm-xtensa/atomic.h b/include/asm-xtensa/atomic.h
new file mode 100644
index 000000000000..d72bcb32ba4f
--- /dev/null
+++ b/include/asm-xtensa/atomic.h
@@ -0,0 +1,272 @@
+/*
+ * include/asm-xtensa/atomic.h
+ *
+ * Atomic operations that C can't guarantee us.  Useful for resource counting..
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_ATOMIC_H
+#define _XTENSA_ATOMIC_H
+
+#include <linux/config.h>
+#include <linux/stringify.h>
+
+typedef struct { volatile int counter; } atomic_t;
+
+#ifdef __KERNEL__
+#include <asm/processor.h>
+#include <asm/system.h>
+
+#define ATOMIC_INIT(i)  ( (atomic_t) { (i) } )
+
+/*
+ * This Xtensa implementation assumes that the right mechanism
+ * for exclusion is for locking interrupts to level 1.
+ *
+ * Locking interrupts looks like this:
+ *
+ *    rsil a15, 1
+ *    <code>
+ *    wsr  a15, PS
+ *    rsync
+ *
+ * Note that a15 is used here because the register allocation
+ * done by the compiler is not guaranteed and a window overflow
+ * may not occur between the rsil and wsr instructions. By using
+ * a15 in the rsil, the machine is guaranteed to be in a state
+ * where no register reference will cause an overflow.
+ */
+
+/**
+ * atomic_read - read atomic variable
+ * @v: pointer of type atomic_t
+ *
+ * Atomically reads the value of @v.
+ */
+#define atomic_read(v)          ((v)->counter)
+
+/**
+ * atomic_set - set atomic variable
+ * @v: pointer of type atomic_t
+ * @i: required value
+ *
+ * Atomically sets the value of @v to @i.
+ */
+#define atomic_set(v,i)         ((v)->counter = (i))
+
+/**
+ * atomic_add - add integer to atomic variable
+ * @i: integer value to add
+ * @v: pointer of type atomic_t
+ *
+ * Atomically adds @i to @v.
+ */
+extern __inline__ void atomic_add(int i, atomic_t * v)
+{
+    unsigned int vval;
+
+    __asm__ __volatile__(
+        "rsil    a15, "__stringify(LOCKLEVEL)"\n\t"
+        "l32i    %0, %2, 0              \n\t"
+        "add     %0, %0, %1             \n\t"
+        "s32i    %0, %2, 0              \n\t"
+        "wsr     a15, "__stringify(PS)"       \n\t"
+        "rsync                          \n"
+        : "=&a" (vval)
+        : "a" (i), "a" (v)
+        : "a15", "memory"
+        );
+}
+
+/**
+ * atomic_sub - subtract the atomic variable
+ * @i: integer value to subtract
+ * @v: pointer of type atomic_t
+ *
+ * Atomically subtracts @i from @v.
+ */
+extern __inline__ void atomic_sub(int i, atomic_t *v)
+{
+    unsigned int vval;
+
+    __asm__ __volatile__(
+        "rsil    a15, "__stringify(LOCKLEVEL)"\n\t"
+        "l32i    %0, %2, 0              \n\t"
+        "sub     %0, %0, %1             \n\t"
+        "s32i    %0, %2, 0              \n\t"
+        "wsr     a15, "__stringify(PS)"       \n\t"
+        "rsync                          \n"
+        : "=&a" (vval)
+        : "a" (i), "a" (v)
+        : "a15", "memory"
+        );
+}
+
+/*
+ * We use atomic_{add|sub}_return to define other functions.
+ */
+
+extern __inline__ int atomic_add_return(int i, atomic_t * v)
+{
+     unsigned int vval;
+
+    __asm__ __volatile__(
+        "rsil    a15,"__stringify(LOCKLEVEL)"\n\t"
+        "l32i    %0, %2, 0             \n\t"
+        "add     %0, %0, %1            \n\t"
+        "s32i    %0, %2, 0             \n\t"
+        "wsr     a15, "__stringify(PS)"      \n\t"
+        "rsync                         \n"
+        : "=&a" (vval)
+        : "a" (i), "a" (v)
+        : "a15", "memory"
+        );
+
+    return vval;
+}
+
+extern __inline__ int atomic_sub_return(int i, atomic_t * v)
+{
+    unsigned int vval;
+
+    __asm__ __volatile__(
+        "rsil    a15,"__stringify(LOCKLEVEL)"\n\t"
+        "l32i    %0, %2, 0             \n\t"
+        "sub     %0, %0, %1            \n\t"
+        "s32i    %0, %2, 0             \n\t"
+        "wsr     a15, "__stringify(PS)"       \n\t"
+        "rsync                         \n"
+        : "=&a" (vval)
+        : "a" (i), "a" (v)
+        : "a15", "memory"
+        );
+
+    return vval;
+}
+
+/**
+ * atomic_sub_and_test - subtract value from variable and test result
+ * @i: integer value to subtract
+ * @v: pointer of type atomic_t
+ *
+ * Atomically subtracts @i from @v and returns
+ * true if the result is zero, or false for all
+ * other cases.
+ */
+#define atomic_sub_and_test(i,v) (atomic_sub_return((i),(v)) == 0)
+
+/**
+ * atomic_inc - increment atomic variable
+ * @v: pointer of type atomic_t
+ *
+ * Atomically increments @v by 1.
+ */
+#define atomic_inc(v) atomic_add(1,(v))
+
+/**
+ * atomic_inc - increment atomic variable
+ * @v: pointer of type atomic_t
+ *
+ * Atomically increments @v by 1.
+ */
+#define atomic_inc_return(v) atomic_add_return(1,(v))
+
+/**
+ * atomic_dec - decrement atomic variable
+ * @v: pointer of type atomic_t
+ *
+ * Atomically decrements @v by 1.
+ */
+#define atomic_dec(v) atomic_sub(1,(v))
+
+/**
+ * atomic_dec_return - decrement atomic variable
+ * @v: pointer of type atomic_t
+ *
+ * Atomically decrements @v by 1.
+ */
+#define atomic_dec_return(v) atomic_sub_return(1,(v))
+
+/**
+ * atomic_dec_and_test - decrement and test
+ * @v: pointer of type atomic_t
+ *
+ * Atomically decrements @v by 1 and
+ * returns true if the result is 0, or false for all other
+ * cases.
+ */
+#define atomic_dec_and_test(v) (atomic_sub_return(1,(v)) == 0)
+
+/**
+ * atomic_inc_and_test - increment and test
+ * @v: pointer of type atomic_t
+ *
+ * Atomically increments @v by 1
+ * and returns true if the result is zero, or false for all
+ * other cases.
+ */
+#define atomic_inc_and_test(v) (atomic_add_return(1,(v)) == 0)
+
+/**
+ * atomic_add_negative - add and test if negative
+ * @v: pointer of type atomic_t
+ * @i: integer value to add
+ *
+ * Atomically adds @i to @v and returns true
+ * if the result is negative, or false when
+ * result is greater than or equal to zero.
+ */
+#define atomic_add_negative(i,v) (atomic_add_return((i),(v)) < 0)
+
+
+extern __inline__ void atomic_clear_mask(unsigned int mask, atomic_t *v)
+{
+    unsigned int all_f = -1;
+    unsigned int vval;
+
+    __asm__ __volatile__(
+        "rsil    a15,"__stringify(LOCKLEVEL)"\n\t"
+        "l32i    %0, %2, 0             \n\t"
+        "xor     %1, %4, %3            \n\t"
+        "and     %0, %0, %4            \n\t"
+        "s32i    %0, %2, 0             \n\t"
+        "wsr     a15, "__stringify(PS)"      \n\t"
+        "rsync                         \n"
+        : "=&a" (vval), "=a" (mask)
+        : "a" (v), "a" (all_f), "1" (mask)
+        : "a15", "memory"
+        );
+}
+
+extern __inline__ void atomic_set_mask(unsigned int mask, atomic_t *v)
+{
+    unsigned int vval;
+
+    __asm__ __volatile__(
+        "rsil    a15,"__stringify(LOCKLEVEL)"\n\t"
+        "l32i    %0, %2, 0             \n\t"
+        "or      %0, %0, %1            \n\t"
+        "s32i    %0, %2, 0             \n\t"
+        "wsr     a15, "__stringify(PS)"       \n\t"
+        "rsync                         \n"
+        : "=&a" (vval)
+        : "a" (mask), "a" (v)
+        : "a15", "memory"
+        );
+}
+
+/* Atomic operations are already serializing */
+#define smp_mb__before_atomic_dec()     barrier()
+#define smp_mb__after_atomic_dec()      barrier()
+#define smp_mb__before_atomic_inc()     barrier()
+#define smp_mb__after_atomic_inc()      barrier()
+
+#endif /* __KERNEL__ */
+
+#endif /* _XTENSA_ATOMIC_H */
+
diff --git a/include/asm-xtensa/bitops.h b/include/asm-xtensa/bitops.h
new file mode 100644
index 000000000000..d395ef226c32
--- /dev/null
+++ b/include/asm-xtensa/bitops.h
@@ -0,0 +1,446 @@
+/*
+ * include/asm-xtensa/bitops.h
+ *
+ * Atomic operations that C can't guarantee us.Useful for resource counting etc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_BITOPS_H
+#define _XTENSA_BITOPS_H
+
+#ifdef __KERNEL__
+
+#include <asm/processor.h>
+#include <asm/byteorder.h>
+#include <asm/system.h>
+
+#ifdef CONFIG_SMP
+# error SMP not supported on this architecture
+#endif
+
+static __inline__ void set_bit(int nr, volatile void * addr)
+{
+        unsigned long mask = 1 << (nr & 0x1f);
+        unsigned long *a = ((unsigned long *)addr) + (nr >> 5);
+        unsigned long flags;
+
+        local_irq_save(flags);
+        *a |= mask;
+        local_irq_restore(flags);
+}
+
+static __inline__ void __set_bit(int nr, volatile unsigned long * addr)
+{
+        unsigned long mask = 1 << (nr & 0x1f);
+        unsigned long *a = ((unsigned long *)addr) + (nr >> 5);
+
+        *a |= mask;
+}
+
+static __inline__ void clear_bit(int nr, volatile void * addr)
+{
+        unsigned long mask = 1 << (nr & 0x1f);
+        unsigned long *a = ((unsigned long *)addr) + (nr >> 5);
+        unsigned long flags;
+
+        local_irq_save(flags);
+        *a &= ~mask;
+        local_irq_restore(flags);
+}
+
+static __inline__ void __clear_bit(int nr, volatile unsigned long *addr)
+{
+        unsigned long mask = 1 << (nr & 0x1f);
+        unsigned long *a = ((unsigned long *)addr) + (nr >> 5);
+
+        *a &= ~mask;
+}
+
+/*
+ * clear_bit() doesn't provide any barrier for the compiler.
+ */
+
+#define smp_mb__before_clear_bit()      barrier()
+#define smp_mb__after_clear_bit()       barrier()
+
+static __inline__ void change_bit(int nr, volatile void * addr)
+{
+        unsigned long mask = 1 << (nr & 0x1f);
+        unsigned long *a = ((unsigned long *)addr) + (nr >> 5);
+        unsigned long flags;
+
+        local_irq_save(flags);
+        *a ^= mask;
+        local_irq_restore(flags);
+}
+
+static __inline__ void __change_bit(int nr, volatile void * addr)
+{
+        unsigned long mask = 1 << (nr & 0x1f);
+        unsigned long *a = ((unsigned long *)addr) + (nr >> 5);
+
+        *a ^= mask;
+}
+
+static __inline__ int test_and_set_bit(int nr, volatile void * addr)
+{
+        unsigned long retval;
+        unsigned long mask = 1 << (nr & 0x1f);
+        unsigned long *a = ((unsigned long *)addr) + (nr >> 5);
+        unsigned long flags;
+
+        local_irq_save(flags);
+        retval = (mask & *a) != 0;
+        *a |= mask;
+        local_irq_restore(flags);
+
+        return retval;
+}
+
+static __inline__ int __test_and_set_bit(int nr, volatile void * addr)
+{
+        unsigned long retval;
+        unsigned long mask = 1 << (nr & 0x1f);
+        unsigned long *a = ((unsigned long *)addr) + (nr >> 5);
+
+        retval = (mask & *a) != 0;
+        *a |= mask;
+
+        return retval;
+}
+
+static __inline__ int test_and_clear_bit(int nr, volatile void * addr)
+{
+        unsigned long retval;
+        unsigned long mask = 1 << (nr & 0x1f);
+        unsigned long *a = ((unsigned long *)addr) + (nr >> 5);
+        unsigned long flags;
+
+        local_irq_save(flags);
+        retval = (mask & *a) != 0;
+        *a &= ~mask;
+        local_irq_restore(flags);
+
+        return retval;
+}
+
+static __inline__ int __test_and_clear_bit(int nr, volatile void * addr)
+{
+        unsigned long mask = 1 << (nr & 0x1f);
+        unsigned long *a = ((unsigned long *)addr) + (nr >> 5);
+        unsigned long old = *a;
+
+        *a = old & ~mask;
+        return (old & mask) != 0;
+}
+
+static __inline__ int test_and_change_bit(int nr, volatile void * addr)
+{
+        unsigned long retval;
+        unsigned long mask = 1 << (nr & 0x1f);
+        unsigned long *a = ((unsigned long *)addr) + (nr >> 5);
+        unsigned long flags;
+
+        local_irq_save(flags);
+
+        retval = (mask & *a) != 0;
+        *a ^= mask;
+        local_irq_restore(flags);
+
+        return retval;
+}
+
+/*
+ * non-atomic version; can be reordered
+ */
+
+static __inline__ int __test_and_change_bit(int nr, volatile void *addr)
+{
+        unsigned long mask = 1 << (nr & 0x1f);
+        unsigned long *a = ((unsigned long *)addr) + (nr >> 5);
+        unsigned long old = *a;
+
+        *a = old ^ mask;
+        return (old & mask) != 0;
+}
+
+static __inline__ int test_bit(int nr, const volatile void *addr)
+{
+        return 1UL & (((const volatile unsigned int *)addr)[nr>>5] >> (nr&31));
+}
+
+#if XCHAL_HAVE_NSAU
+
+static __inline__ int __cntlz (unsigned long x)
+{
+        int lz;
+        asm ("nsau %0, %1" : "=r" (lz) : "r" (x));
+        return 31 - lz;
+}
+
+#else
+
+static __inline__ int __cntlz (unsigned long x)
+{
+        unsigned long sum, x1, x2, x4, x8, x16;
+        x1  = x & 0xAAAAAAAA;
+        x2  = x & 0xCCCCCCCC;
+        x4  = x & 0xF0F0F0F0;
+        x8  = x & 0xFF00FF00;
+        x16 = x & 0xFFFF0000;
+        sum = x2 ? 2 : 0;
+        sum += (x16 != 0) * 16;
+        sum += (x8 != 0) * 8;
+        sum += (x4 != 0) * 4;
+        sum += (x1 != 0);
+
+        return sum;
+}
+
+#endif
+
+/*
+ * ffz: Find first zero in word. Undefined if no zero exists.
+ * bit 0 is the LSB of addr; bit 32 is the LSB of (addr+1).
+ */
+
+static __inline__ int ffz(unsigned long x)
+{
+        if ((x = ~x) == 0)
+                return 32;
+        return __cntlz(x & -x);
+}
+
+/*
+ * __ffs: Find first bit set in word. Return 0 for bit 0
+ */
+
+static __inline__ int __ffs(unsigned long x)
+{
+        return __cntlz(x & -x);
+}
+
+/*
+ * ffs: Find first bit set in word. This is defined the same way as
+ * the libc and compiler builtin ffs routines, therefore
+ * differs in spirit from the above ffz (man ffs).
+ */
+
+static __inline__ int ffs(unsigned long x)
+{
+        return __cntlz(x & -x) + 1;
+}
+
+/*
+ * fls: Find last (most-significant) bit set in word.
+ * Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
+ */
+
+static __inline__ int fls (unsigned int x)
+{
+        return __cntlz(x);
+}
+
+static __inline__ int
+find_next_bit(const unsigned long *addr, int size, int offset)
+{
+        const unsigned long *p = addr + (offset >> 5);
+        unsigned long result = offset & ~31UL;
+        unsigned long tmp;
+
+        if (offset >= size)
+                return size;
+        size -= result;
+        offset &= 31UL;
+        if (offset) {
+                tmp = *p++;
+                tmp &= ~0UL << offset;
+                if (size < 32)
+                        goto found_first;
+                if (tmp)
+                        goto found_middle;
+                size -= 32;
+                result += 32;
+        }
+        while (size >= 32) {
+                if ((tmp = *p++) != 0)
+                        goto found_middle;
+                result += 32;
+                size -= 32;
+        }
+        if (!size)
+                return result;
+        tmp = *p;
+
+found_first:
+        tmp &= ~0UL >> (32 - size);
+        if (tmp == 0UL) /* Are any bits set? */
+                return result + size;   /* Nope. */
+found_middle:
+        return result + __ffs(tmp);
+}
+
+/**
+ * find_first_bit - find the first set bit in a memory region
+ * @addr: The address to start the search at
+ * @size: The maximum size to search
+ *
+ * Returns the bit-number of the first set bit, not the number of the byte
+ * containing a bit.
+ */
+
+#define find_first_bit(addr, size) \
+        find_next_bit((addr), (size), 0)
+
+static __inline__ int
+find_next_zero_bit(const unsigned long *addr, int size, int offset)
+{
+        const unsigned long *p = addr + (offset >> 5);
+        unsigned long result = offset & ~31UL;
+        unsigned long tmp;
+
+        if (offset >= size)
+                return size;
+        size -= result;
+        offset &= 31UL;
+        if (offset) {
+                tmp = *p++;
+                tmp |= ~0UL >> (32-offset);
+                if (size < 32)
+                        goto found_first;
+                if (~tmp)
+                        goto found_middle;
+                size -= 32;
+                result += 32;
+        }
+        while (size & ~31UL) {
+                if (~(tmp = *p++))
+                        goto found_middle;
+                result += 32;
+                size -= 32;
+        }
+        if (!size)
+                return result;
+        tmp = *p;
+
+found_first:
+        tmp |= ~0UL << size;
+found_middle:
+        return result + ffz(tmp);
+}
+
+#define find_first_zero_bit(addr, size) \
+        find_next_zero_bit((addr), (size), 0)
+
+#ifdef __XTENSA_EL__
+# define ext2_set_bit(nr,addr) __test_and_set_bit((nr), (addr))
+# define ext2_set_bit_atomic(lock,nr,addr) test_and_set_bit((nr),(addr))
+# define ext2_clear_bit(nr,addr) __test_and_clear_bit((nr), (addr))
+# define ext2_clear_bit_atomic(lock,nr,addr) test_and_clear_bit((nr),(addr))
+# define ext2_test_bit(nr,addr) test_bit((nr), (addr))
+# define ext2_find_first_zero_bit(addr, size) find_first_zero_bit((addr),(size))
+# define ext2_find_next_zero_bit(addr, size, offset) \
+                find_next_zero_bit((addr), (size), (offset))
+#elif defined(__XTENSA_EB__)
+# define ext2_set_bit(nr,addr) __test_and_set_bit((nr) ^ 0x18, (addr))
+# define ext2_set_bit_atomic(lock,nr,addr) test_and_set_bit((nr) ^ 0x18, (addr))
+# define ext2_clear_bit(nr,addr) __test_and_clear_bit((nr) ^ 18, (addr))
+# define ext2_clear_bit_atomic(lock,nr,addr) test_and_clear_bit((nr)^0x18,(addr))
+# define ext2_test_bit(nr,addr) test_bit((nr) ^ 0x18, (addr))
+# define ext2_find_first_zero_bit(addr, size) \
+        ext2_find_next_zero_bit((addr), (size), 0)
+
+static __inline__ unsigned long ext2_find_next_zero_bit(void *addr, unsigned long size, unsigned long offset)
+{
+        unsigned long *p = ((unsigned long *) addr) + (offset >> 5);
+        unsigned long result = offset & ~31UL;
+        unsigned long tmp;
+
+        if (offset >= size)
+                return size;
+        size -= result;
+        offset &= 31UL;
+        if(offset) {
+                /* We hold the little endian value in tmp, but then the
+                 * shift is illegal. So we could keep a big endian value
+                 * in tmp, like this:
+                 *
+                 * tmp = __swab32(*(p++));
+                 * tmp |= ~0UL >> (32-offset);
+                 *
+                 * but this would decrease preformance, so we change the
+                 * shift:
+                 */
+                tmp = *(p++);
+                tmp |= __swab32(~0UL >> (32-offset));
+                if(size < 32)
+                        goto found_first;
+                if(~tmp)
+                        goto found_middle;
+                size -= 32;
+                result += 32;
+        }
+        while(size & ~31UL) {
+                if(~(tmp = *(p++)))
+                        goto found_middle;
+                result += 32;
+                size -= 32;
+        }
+        if(!size)
+                return result;
+        tmp = *p;
+
+found_first:
+        /* tmp is little endian, so we would have to swab the shift,
+         * see above. But then we have to swab tmp below for ffz, so
+         * we might as well do this here.
+         */
+        return result + ffz(__swab32(tmp) | (~0UL << size));
+found_middle:
+        return result + ffz(__swab32(tmp));
+}
+
+#else
+# error processor byte order undefined!
+#endif
+
+
+#define hweight32(x)    generic_hweight32(x)
+#define hweight16(x)    generic_hweight16(x)
+#define hweight8(x)     generic_hweight8(x)
+
+/*
+ * Find the first bit set in a 140-bit bitmap.
+ * The first 100 bits are unlikely to be set.
+ */
+
+static inline int sched_find_first_bit(const unsigned long *b)
+{
+        if (unlikely(b[0]))
+                return __ffs(b[0]);
+        if (unlikely(b[1]))
+                return __ffs(b[1]) + 32;
+        if (unlikely(b[2]))
+                return __ffs(b[2]) + 64;
+        if (b[3])
+                return __ffs(b[3]) + 96;
+        return __ffs(b[4]) + 128;
+}
+
+
+/* Bitmap functions for the minix filesystem.  */
+
+#define minix_test_and_set_bit(nr,addr) test_and_set_bit(nr,addr)
+#define minix_set_bit(nr,addr) set_bit(nr,addr)
+#define minix_test_and_clear_bit(nr,addr) test_and_clear_bit(nr,addr)
+#define minix_test_bit(nr,addr) test_bit(nr,addr)
+#define minix_find_first_zero_bit(addr,size) find_first_zero_bit(addr,size)
+
+#endif  /* __KERNEL__ */
+
+#endif  /* _XTENSA_BITOPS_H */
diff --git a/include/asm-xtensa/bootparam.h b/include/asm-xtensa/bootparam.h
new file mode 100644
index 000000000000..9983f2c1b7ee
--- /dev/null
+++ b/include/asm-xtensa/bootparam.h
@@ -0,0 +1,61 @@
+/*
+ * include/asm-xtensa/bootparam.h
+ *
+ * Definition of the Linux/Xtensa boot parameter structure
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005  Tensilica Inc.
+ *
+ * (Concept borrowed from the 68K port)
+ */
+
+#ifndef _XTENSA_BOOTPARAM_H
+#define _XTENSA_BOOTPARAM_H
+
+#define BP_VERSION 0x0001
+
+#define BP_TAG_COMMAND_LINE     0x1001  /* command line (0-terminated string)*/
+#define BP_TAG_INITRD           0x1002  /* ramdisk addr and size (bp_meminfo) */
+#define BP_TAG_MEMORY           0x1003  /* memory addr and size (bp_meminfo) */
+#define BP_TAG_SERIAL_BAUSRATE  0x1004  /* baud rate of current console. */
+#define BP_TAG_SERIAL_PORT      0x1005  /* serial device of current console */
+
+#define BP_TAG_FIRST            0x7B0B  /* first tag with a version number */
+#define BP_TAG_LAST             0x7E0B  /* last tag */
+
+#ifndef __ASSEMBLY__
+
+/* All records are aligned to 4 bytes */
+
+typedef struct bp_tag {
+  unsigned short id;            /* tag id */
+  unsigned short size;          /* size of this record excluding the structure*/
+  unsigned long data[0];        /* data */
+} bp_tag_t;
+
+typedef struct meminfo {
+  unsigned long type;
+  unsigned long start;
+  unsigned long end;
+} meminfo_t;
+
+#define SYSMEM_BANKS_MAX 5
+
+#define MEMORY_TYPE_CONVENTIONAL        0x1000
+#define MEMORY_TYPE_NONE                0x2000
+
+typedef struct sysmem_info {
+  int nr_banks;
+  meminfo_t bank[SYSMEM_BANKS_MAX];
+} sysmem_info_t;
+
+extern sysmem_info_t sysmem;
+
+#endif
+#endif
+
+
+
diff --git a/include/asm-xtensa/bug.h b/include/asm-xtensa/bug.h
new file mode 100644
index 000000000000..56703659b204
--- /dev/null
+++ b/include/asm-xtensa/bug.h
@@ -0,0 +1,41 @@
+/*
+ * include/asm-xtensa/bug.h
+ *
+ * Macros to cause a 'bug' message.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_BUG_H
+#define _XTENSA_BUG_H
+
+#include <linux/stringify.h>
+
+#define ILL     __asm__ __volatile__ (".byte 0,0,0\n")
+
+#ifdef CONFIG_KALLSYMS
+# define BUG() do {                                                     \
+        printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__);           \
+        ILL;                                                            \
+} while (0)
+#else
+# define BUG() do {                                                     \
+        printk("kernel BUG!\n");                                        \
+        ILL;                                                            \
+} while (0)
+#endif
+
+#define BUG_ON(condition) do { if (unlikely((condition)!=0)) BUG(); } while(0)
+#define PAGE_BUG(page) do {  BUG(); } while (0)
+#define WARN_ON(condition) do {                                            \
+  if (unlikely((condition)!=0)) {                                          \
+    printk ("Warning in %s at %s:%d\n", __FUNCTION__, __FILE__, __LINE__); \
+      dump_stack();                                                        \
+  }                                                                        \
+} while (0)
+
+#endif  /* _XTENSA_BUG_H */
diff --git a/include/asm-xtensa/bugs.h b/include/asm-xtensa/bugs.h
new file mode 100644
index 000000000000..c42285320133
--- /dev/null
+++ b/include/asm-xtensa/bugs.h
@@ -0,0 +1,22 @@
+/*
+ * include/asm-xtensa/bugs.h
+ *
+ * This is included by init/main.c to check for architecture-dependent bugs.
+ *
+ * Xtensa processors don't have any bugs.  :)
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file "COPYING" in the main directory of
+ * this archive for more details.
+ */
+
+#ifndef _XTENSA_BUGS_H
+#define _XTENSA_BUGS_H
+
+#include <asm/processor.h>
+
+static void __init check_bugs(void)
+{
+}
+
+#endif /* _XTENSA_BUGS_H */
diff --git a/include/asm-xtensa/byteorder.h b/include/asm-xtensa/byteorder.h
new file mode 100644
index 000000000000..0b1552569aae
--- /dev/null
+++ b/include/asm-xtensa/byteorder.h
@@ -0,0 +1,82 @@
+/*
+ * include/asm-xtensa/byteorder.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_BYTEORDER_H
+#define _XTENSA_BYTEORDER_H
+
+#include <asm/processor.h>
+#include <asm/types.h>
+
+static __inline__ __const__ __u32 ___arch__swab32(__u32 x)
+{
+    __u32 res;
+    /* instruction sequence from Xtensa ISA release 2/2000 */
+    __asm__("ssai     8           \n\t"
+            "srli     %0, %1, 16  \n\t"
+            "src      %0, %0, %1  \n\t"
+            "src      %0, %0, %0  \n\t"
+            "src      %0, %1, %0  \n"
+            : "=&a" (res)
+            : "a" (x)
+            );
+    return res;
+}
+
+static __inline__ __const__ __u16 ___arch__swab16(__u16 x)
+{
+    /* Given that 'short' values are signed (i.e., can be negative),
+     * we cannot assume that the upper 16-bits of the register are
+     * zero.  We are careful to mask values after shifting.
+     */
+
+    /* There exists an anomaly between xt-gcc and xt-xcc.  xt-gcc
+     * inserts an extui instruction after putting this function inline
+     * to ensure that it uses only the least-significant 16 bits of
+     * the result.  xt-xcc doesn't use an extui, but assumes the
+     * __asm__ macro follows convention that the upper 16 bits of an
+     * 'unsigned short' result are still zero.  This macro doesn't
+     * follow convention; indeed, it leaves garbage in the upport 16
+     * bits of the register.
+
+     * Declaring the temporary variables 'res' and 'tmp' to be 32-bit
+     * types while the return type of the function is a 16-bit type
+     * forces both compilers to insert exactly one extui instruction
+     * (or equivalent) to mask off the upper 16 bits. */
+
+    __u32 res;
+    __u32 tmp;
+
+    __asm__("extui    %1, %2, 8, 8\n\t"
+            "slli     %0, %2, 8   \n\t"
+            "or       %0, %0, %1  \n"
+            : "=&a" (res), "=&a" (tmp)
+            : "a" (x)
+            );
+
+    return res;
+}
+
+#define __arch__swab32(x) ___arch__swab32(x)
+#define __arch__swab16(x) ___arch__swab16(x)
+
+#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
+#  define __BYTEORDER_HAS_U64__
+#  define __SWAB_64_THRU_32__
+#endif
+
+#ifdef __XTENSA_EL__
+# include <linux/byteorder/little_endian.h>
+#elif defined(__XTENSA_EB__)
+# include <linux/byteorder/big_endian.h>
+#else
+# error processor byte order undefined!
+#endif
+
+#endif /* __ASM_XTENSA_BYTEORDER_H */
diff --git a/include/asm-xtensa/cache.h b/include/asm-xtensa/cache.h
new file mode 100644
index 000000000000..5aae3f12407c
--- /dev/null
+++ b/include/asm-xtensa/cache.h
@@ -0,0 +1,32 @@
+/*
+ * include/asm-xtensa/cacheflush.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ * 2 of the License, or (at your option) any later version.
+ *
+ * (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_CACHE_H
+#define _XTENSA_CACHE_H
+
+#include <xtensa/config/core.h>
+
+#if XCHAL_ICACHE_SIZE > 0
+# if (XCHAL_ICACHE_SIZE % (XCHAL_ICACHE_LINESIZE*XCHAL_ICACHE_WAYS*4)) != 0
+#  error cache configuration outside expected/supported range!
+# endif
+#endif
+
+#if XCHAL_DCACHE_SIZE > 0
+# if (XCHAL_DCACHE_SIZE % (XCHAL_DCACHE_LINESIZE*XCHAL_DCACHE_WAYS*4)) != 0
+#  error cache configuration outside expected/supported range!
+# endif
+#endif
+
+#define L1_CACHE_SHIFT          XCHAL_CACHE_LINEWIDTH_MAX
+#define L1_CACHE_BYTES          XCHAL_CACHE_LINESIZE_MAX
+
+#endif  /* _XTENSA_CACHE_H */
diff --git a/include/asm-xtensa/cacheflush.h b/include/asm-xtensa/cacheflush.h
new file mode 100644
index 000000000000..44a36e087844
--- /dev/null
+++ b/include/asm-xtensa/cacheflush.h
@@ -0,0 +1,122 @@
+/*
+ * include/asm-xtensa/cacheflush.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_CACHEFLUSH_H
+#define _XTENSA_CACHEFLUSH_H
+
+#ifdef __KERNEL__
+
+#include <linux/mm.h>
+#include <asm/processor.h>
+#include <asm/page.h>
+
+/*
+ * flush and invalidate data cache, invalidate instruction cache:
+ *
+ * __flush_invalidate_cache_all()
+ * __flush_invalidate_cache_range(from,sze)
+ *
+ * invalidate data or instruction cache:
+ *
+ * __invalidate_icache_all()
+ * __invalidate_icache_page(adr)
+ * __invalidate_dcache_page(adr)
+ * __invalidate_icache_range(from,size)
+ * __invalidate_dcache_range(from,size)
+ *
+ * flush data cache:
+ *
+ * __flush_dcache_page(adr)
+ *
+ * flush and invalidate data cache:
+ *
+ * __flush_invalidate_dcache_all()
+ * __flush_invalidate_dcache_page(adr)
+ * __flush_invalidate_dcache_range(from,size)
+ */
+
+extern void __flush_invalidate_cache_all(void);
+extern void __flush_invalidate_cache_range(unsigned long, unsigned long);
+extern void __flush_invalidate_dcache_all(void);
+extern void __invalidate_icache_all(void);
+
+extern void __invalidate_dcache_page(unsigned long);
+extern void __invalidate_icache_page(unsigned long);
+extern void __invalidate_icache_range(unsigned long, unsigned long);
+extern void __invalidate_dcache_range(unsigned long, unsigned long);
+
+#if XCHAL_DCACHE_IS_WRITEBACK
+extern void __flush_dcache_page(unsigned long);
+extern void __flush_invalidate_dcache_page(unsigned long);
+extern void __flush_invalidate_dcache_range(unsigned long, unsigned long);
+#else
+# define __flush_dcache_page(p)                         do { } while(0)
+# define __flush_invalidate_dcache_page(p)              do { } while(0)
+# define __flush_invalidate_dcache_range(p,s)           do { } while(0)
+#endif
+
+/*
+ * We have physically tagged caches - nothing to do here -
+ * unless we have cache aliasing.
+ *
+ * Pages can get remapped. Because this might change the 'color' of that page,
+ * we have to flush the cache before the PTE is changed.
+ * (see also Documentation/cachetlb.txt)
+ */
+
+#if (DCACHE_WAY_SIZE > PAGE_SIZE) && XCHAL_DCACHE_IS_WRITEBACK
+
+#define flush_cache_all()               __flush_invalidate_cache_all();
+#define flush_cache_mm(mm)              __flush_invalidate_cache_all();
+
+#define flush_cache_vmap(start,end)     __flush_invalidate_cache_all();
+#define flush_cache_vunmap(start,end)   __flush_invalidate_cache_all();
+
+extern void flush_dcache_page(struct page*);
+
+extern void flush_cache_range(struct vm_area_struct*, ulong, ulong);
+extern void flush_cache_page(struct vm_area_struct*, unsigned long, unsigned long);
+
+#else
+
+#define flush_cache_all()                               do { } while (0)
+#define flush_cache_mm(mm)                              do { } while (0)
+
+#define flush_cache_vmap(start,end)                     do { } while (0)
+#define flush_cache_vunmap(start,end)                   do { } while (0)
+
+#define flush_dcache_page(page)                         do { } while (0)
+
+#define flush_cache_page(vma,addr,pfn)                  do { } while (0)
+#define flush_cache_range(vma,start,end)                do { } while (0)
+
+#endif
+
+#define flush_icache_range(start,end)                                   \
+        __invalidate_icache_range(start,(end)-(start))
+
+/* This is not required, see Documentation/cachetlb.txt */
+
+#define flush_icache_page(vma,page)                     do { } while(0)
+
+#define flush_dcache_mmap_lock(mapping)                 do { } while (0)
+#define flush_dcache_mmap_unlock(mapping)               do { } while (0)
+
+
+#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
+        memcpy(dst, src, len)
+
+#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
+        memcpy(dst, src, len)
+
+#endif /* __KERNEL__ */
+
+#endif /* _XTENSA_CACHEFLUSH_H */
+
diff --git a/include/asm-xtensa/checksum.h b/include/asm-xtensa/checksum.h
new file mode 100644
index 000000000000..1a00fad19929
--- /dev/null
+++ b/include/asm-xtensa/checksum.h
@@ -0,0 +1,264 @@
+/*
+ * include/asm-xtensa/checksum.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_CHECKSUM_H
+#define _XTENSA_CHECKSUM_H
+
+#include <linux/config.h>
+#include <linux/in6.h>
+#include <xtensa/config/core.h>
+
+/*
+ * computes the checksum of a memory block at buff, length len,
+ * and adds in "sum" (32-bit)
+ *
+ * returns a 32-bit number suitable for feeding into itself
+ * or csum_tcpudp_magic
+ *
+ * this function must be called with even lengths, except
+ * for the last fragment, which may be odd
+ *
+ * it's best to have buff aligned on a 32-bit boundary
+ */
+asmlinkage unsigned int csum_partial(const unsigned char * buff, int len, unsigned int sum);
+
+/*
+ * the same as csum_partial, but copies from src while it
+ * checksums, and handles user-space pointer exceptions correctly, when needed.
+ *
+ * here even more important to align src and dst on a 32-bit (or even
+ * better 64-bit) boundary
+ */
+
+asmlinkage unsigned int csum_partial_copy_generic( const char *src, char *dst, int len, int sum,
+                                                   int *src_err_ptr, int *dst_err_ptr);
+
+/*
+ *      Note: when you get a NULL pointer exception here this means someone
+ *      passed in an incorrect kernel address to one of these functions.
+ *
+ *      If you use these functions directly please don't forget the
+ *      verify_area().
+ */
+extern __inline__
+unsigned int csum_partial_copy_nocheck ( const char *src, char *dst,
+                                        int len, int sum)
+{
+        return csum_partial_copy_generic ( src, dst, len, sum, NULL, NULL);
+}
+
+extern __inline__
+unsigned int csum_partial_copy_from_user ( const char *src, char *dst,
+                                                int len, int sum, int *err_ptr)
+{
+        return csum_partial_copy_generic ( src, dst, len, sum, err_ptr, NULL);
+}
+
+/*
+ * These are the old (and unsafe) way of doing checksums, a warning message will be
+ * printed if they are used and an exeption occurs.
+ *
+ * these functions should go away after some time.
+ */
+
+#define csum_partial_copy_fromuser csum_partial_copy
+unsigned int csum_partial_copy( const char *src, char *dst, int len, int sum);
+
+/*
+ *      Fold a partial checksum
+ */
+
+static __inline__ unsigned int csum_fold(unsigned int sum)
+{
+        unsigned int __dummy;
+        __asm__("extui  %1, %0, 16, 16\n\t"
+                "extui  %0 ,%0, 0, 16\n\t"
+                "add    %0, %0, %1\n\t"
+                "slli   %1, %0, 16\n\t"
+                "add    %0, %0, %1\n\t"
+                "extui  %0, %0, 16, 16\n\t"
+                "neg    %0, %0\n\t"
+                "addi   %0, %0, -1\n\t"
+                "extui  %0, %0, 0, 16\n\t"
+                : "=r" (sum), "=&r" (__dummy)
+                : "0" (sum));
+        return sum;
+}
+
+/*
+ *      This is a version of ip_compute_csum() optimized for IP headers,
+ *      which always checksum on 4 octet boundaries.
+ */
+static __inline__ unsigned short ip_fast_csum(unsigned char * iph, unsigned int ihl)
+{
+        unsigned int sum, tmp, endaddr;
+
+        __asm__ __volatile__(
+                "sub            %0, %0, %0\n\t"
+#if XCHAL_HAVE_LOOPS
+                "loopgtz        %2, 2f\n\t"
+#else
+                "beqz           %2, 2f\n\t"
+                "slli           %4, %2, 2\n\t"
+                "add            %4, %4, %1\n\t"
+                "0:\t"
+#endif
+                "l32i           %3, %1, 0\n\t"
+                "add            %0, %0, %3\n\t"
+                "bgeu           %0, %3, 1f\n\t"
+                "addi           %0, %0, 1\n\t"
+                "1:\t"
+                "addi           %1, %1, 4\n\t"
+#if !XCHAL_HAVE_LOOPS
+                "blt            %1, %4, 0b\n\t"
+#endif
+                "2:\t"
+        /* Since the input registers which are loaded with iph and ihl
+           are modified, we must also specify them as outputs, or gcc
+           will assume they contain their original values. */
+                : "=r" (sum), "=r" (iph), "=r" (ihl), "=&r" (tmp), "=&r" (endaddr)
+                : "1" (iph), "2" (ihl));
+
+        return  csum_fold(sum);
+}
+
+static __inline__ unsigned long csum_tcpudp_nofold(unsigned long saddr,
+                                                   unsigned long daddr,
+                                                   unsigned short len,
+                                                   unsigned short proto,
+                                                   unsigned int sum)
+{
+
+#ifdef __XTENSA_EL__
+        unsigned long len_proto = (ntohs(len)<<16)+proto*256;
+#elif defined(__XTENSA_EB__)
+        unsigned long len_proto = (proto<<16)+len;
+#else
+# error processor byte order undefined!
+#endif
+        __asm__("add    %0, %0, %1\n\t"
+                "bgeu   %0, %1, 1f\n\t"
+                "addi   %0, %0, 1\n\t"
+                "1:\t"
+                "add    %0, %0, %2\n\t"
+                "bgeu   %0, %2, 1f\n\t"
+                "addi   %0, %0, 1\n\t"
+                "1:\t"
+                "add    %0, %0, %3\n\t"
+                "bgeu   %0, %3, 1f\n\t"
+                "addi   %0, %0, 1\n\t"
+                "1:\t"
+                : "=r" (sum), "=r" (len_proto)
+                : "r" (daddr), "r" (saddr), "1" (len_proto), "0" (sum));
+        return sum;
+}
+
+/*
+ * computes the checksum of the TCP/UDP pseudo-header
+ * returns a 16-bit checksum, already complemented
+ */
+static __inline__ unsigned short int csum_tcpudp_magic(unsigned long saddr,
+                                                       unsigned long daddr,
+                                                       unsigned short len,
+                                                       unsigned short proto,
+                                                       unsigned int sum)
+{
+        return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum));
+}
+
+/*
+ * this routine is used for miscellaneous IP-like checksums, mainly
+ * in icmp.c
+ */
+
+static __inline__ unsigned short ip_compute_csum(unsigned char * buff, int len)
+{
+    return csum_fold (csum_partial(buff, len, 0));
+}
+
+#define _HAVE_ARCH_IPV6_CSUM
+static __inline__ unsigned short int csum_ipv6_magic(struct in6_addr *saddr,
+                                                     struct in6_addr *daddr,
+                                                     __u32 len,
+                                                     unsigned short proto,
+                                                     unsigned int sum)
+{
+        unsigned int __dummy;
+        __asm__("l32i   %1, %2, 0\n\t"
+                "add    %0, %0, %1\n\t"
+                "bgeu   %0, %1, 1f\n\t"
+                "addi   %0, %0, 1\n\t"
+                "1:\t"
+                "l32i   %1, %2, 4\n\t"
+                "add    %0, %0, %1\n\t"
+                "bgeu   %0, %1, 1f\n\t"
+                "addi   %0, %0, 1\n\t"
+                "1:\t"
+                "l32i   %1, %2, 8\n\t"
+                "add    %0, %0, %1\n\t"
+                "bgeu   %0, %1, 1f\n\t"
+                "addi   %0, %0, 1\n\t"
+                "1:\t"
+                "l32i   %1, %2, 12\n\t"
+                "add    %0, %0, %1\n\t"
+                "bgeu   %0, %1, 1f\n\t"
+                "addi   %0, %0, 1\n\t"
+                "1:\t"
+                "l32i   %1, %3, 0\n\t"
+                "add    %0, %0, %1\n\t"
+                "bgeu   %0, %1, 1f\n\t"
+                "addi   %0, %0, 1\n\t"
+                "1:\t"
+                "l32i   %1, %3, 4\n\t"
+                "add    %0, %0, %1\n\t"
+                "bgeu   %0, %1, 1f\n\t"
+                "addi   %0, %0, 1\n\t"
+                "1:\t"
+                "l32i   %1, %3, 8\n\t"
+                "add    %0, %0, %1\n\t"
+                "bgeu   %0, %1, 1f\n\t"
+                "addi   %0, %0, 1\n\t"
+                "1:\t"
+                "l32i   %1, %3, 12\n\t"
+                "add    %0, %0, %1\n\t"
+                "bgeu   %0, %1, 1f\n\t"
+                "addi   %0, %0, 1\n\t"
+                "1:\t"
+                "add    %0, %0, %4\n\t"
+                "bgeu   %0, %4, 1f\n\t"
+                "addi   %0, %0, 1\n\t"
+                "1:\t"
+                "add    %0, %0, %5\n\t"
+                "bgeu   %0, %5, 1f\n\t"
+                "addi   %0, %0, 1\n\t"
+                "1:\t"
+                : "=r" (sum), "=&r" (__dummy)
+                : "r" (saddr), "r" (daddr),
+                  "r" (htonl(len)), "r" (htonl(proto)), "0" (sum));
+
+        return csum_fold(sum);
+}
+
+/*
+ *      Copy and checksum to user
+ */
+#define HAVE_CSUM_COPY_USER
+static __inline__ unsigned int csum_and_copy_to_user (const char *src, char *dst,
+                                    int len, int sum, int *err_ptr)
+{
+        if (access_ok(VERIFY_WRITE, dst, len))
+                return csum_partial_copy_generic(src, dst, len, sum, NULL, err_ptr);
+
+        if (len)
+                *err_ptr = -EFAULT;
+
+        return -1; /* invalid checksum */
+}
+#endif
diff --git a/include/asm-xtensa/coprocessor.h b/include/asm-xtensa/coprocessor.h
new file mode 100644
index 000000000000..a91b96dc0efe
--- /dev/null
+++ b/include/asm-xtensa/coprocessor.h
@@ -0,0 +1,70 @@
+/*
+ * include/asm-xtensa/cpextra.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2003 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_COPROCESSOR_H
+#define _XTENSA_COPROCESSOR_H
+
+#include <xtensa/config/core.h>
+
+#define XTOFS(last_start,last_size,align) \
+        ((last_start+last_size+align-1) & -align)
+
+#define XTENSA_CP_EXTRA_OFFSET  0
+#define XTENSA_CP_EXTRA_ALIGN   XCHAL_EXTRA_SA_ALIGN
+
+#define XTENSA_CPE_CP0_OFFSET   \
+        XTOFS(XTENSA_CP_EXTRA_OFFSET, XCHAL_EXTRA_SA_SIZE, XCHAL_CP0_SA_ALIGN)
+#define XTENSA_CPE_CP1_OFFSET   \
+        XTOFS(XTENSA_CPE_CP0_OFFSET, XCHAL_CP0_SA_SIZE, XCHAL_CP1_SA_ALIGN)
+#define XTENSA_CPE_CP2_OFFSET   \
+        XTOFS(XTENSA_CPE_CP1_OFFSET, XCHAL_CP1_SA_SIZE, XCHAL_CP2_SA_ALIGN)
+#define XTENSA_CPE_CP3_OFFSET   \
+        XTOFS(XTENSA_CPE_CP2_OFFSET, XCHAL_CP2_SA_SIZE, XCHAL_CP3_SA_ALIGN)
+#define XTENSA_CPE_CP4_OFFSET   \
+        XTOFS(XTENSA_CPE_CP3_OFFSET, XCHAL_CP3_SA_SIZE, XCHAL_CP4_SA_ALIGN)
+#define XTENSA_CPE_CP5_OFFSET   \
+        XTOFS(XTENSA_CPE_CP4_OFFSET, XCHAL_CP4_SA_SIZE, XCHAL_CP5_SA_ALIGN)
+#define XTENSA_CPE_CP6_OFFSET   \
+        XTOFS(XTENSA_CPE_CP5_OFFSET, XCHAL_CP5_SA_SIZE, XCHAL_CP6_SA_ALIGN)
+#define XTENSA_CPE_CP7_OFFSET   \
+        XTOFS(XTENSA_CPE_CP6_OFFSET, XCHAL_CP6_SA_SIZE, XCHAL_CP7_SA_ALIGN)
+#define XTENSA_CP_EXTRA_SIZE    \
+        XTOFS(XTENSA_CPE_CP7_OFFSET, XCHAL_CP7_SA_SIZE, 16)
+
+#if XCHAL_CP_NUM > 0
+# ifndef __ASSEMBLY__
+/*
+ * Tasks that own contents of (last user) each coprocessor.
+ * Entries are 0 for not-owned or non-existent coprocessors.
+ * Note: The size of this structure is fixed to 8 bytes in entry.S
+ */
+typedef struct {
+        struct task_struct *owner;      /* owner */
+        int offset;                     /* offset in cpextra space. */
+} coprocessor_info_t;
+# else
+#  define COPROCESSOR_INFO_OWNER 0
+#  define COPROCESSOR_INFO_OFFSET 4
+#  define COPROCESSOR_INFO_SIZE 8
+# endif
+#endif
+
+
+#ifndef __ASSEMBLY__
+# if XCHAL_CP_NUM > 0
+struct task_struct;
+extern void release_coprocessors (struct task_struct*);
+extern void save_coprocessor_registers(void*, int);
+# else
+#  define release_coprocessors(task)
+# endif
+#endif
+
+#endif  /* _XTENSA_COPROCESSOR_H */
diff --git a/include/asm-xtensa/cpumask.h b/include/asm-xtensa/cpumask.h
new file mode 100644
index 000000000000..ebeede397db3
--- /dev/null
+++ b/include/asm-xtensa/cpumask.h
@@ -0,0 +1,16 @@
+/*
+ * include/asm-xtensa/cpumask.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_CPUMASK_H
+#define _XTENSA_CPUMASK_H
+
+#include <asm-generic/cpumask.h>
+
+#endif /* _XTENSA_CPUMASK_H */
diff --git a/include/asm-xtensa/cputime.h b/include/asm-xtensa/cputime.h
new file mode 100644
index 000000000000..a7fb864a50ae
--- /dev/null
+++ b/include/asm-xtensa/cputime.h
@@ -0,0 +1,6 @@
+#ifndef _XTENSA_CPUTIME_H
+#define _XTENSA_CPUTIME_H
+
+#include <asm-generic/cputime.h>
+
+#endif /* _XTENSA_CPUTIME_H */
diff --git a/include/asm-xtensa/current.h b/include/asm-xtensa/current.h
new file mode 100644
index 000000000000..8d1eb5d78649
--- /dev/null
+++ b/include/asm-xtensa/current.h
@@ -0,0 +1,38 @@
+/*
+ * include/asm-xtensa/current.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_CURRENT_H
+#define _XTENSA_CURRENT_H
+
+#ifndef __ASSEMBLY__
+
+#include <linux/thread_info.h>
+
+struct task_struct;
+
+static inline struct task_struct *get_current(void)
+{
+        return current_thread_info()->task;
+}
+
+#define current get_current()
+
+#else
+
+#define CURRENT_SHIFT 13
+
+#define GET_CURRENT(reg,sp)             \
+        GET_THREAD_INFO(reg,sp);        \
+        l32i reg, reg, TI_TASK          \
+
+#endif
+
+
+#endif /* XTENSA_CURRENT_H */
diff --git a/include/asm-xtensa/delay.h b/include/asm-xtensa/delay.h
new file mode 100644
index 000000000000..6359c55e77a8
--- /dev/null
+++ b/include/asm-xtensa/delay.h
@@ -0,0 +1,50 @@
+/*
+ * include/asm-xtensa/delay.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ *
+ */
+
+#ifndef _XTENSA_DELAY_H
+#define _XTENSA_DELAY_H
+
+#include <linux/config.h>
+#include <asm/processor.h>
+#include <asm/param.h>
+
+extern unsigned long loops_per_jiffy;
+
+extern __inline__ void __delay(unsigned long loops)
+{
+  /* 2 cycles per loop. */
+  __asm__ __volatile__ ("1: addi %0, %0, -2; bgeui %0, 1, 1b"
+                        : "=r" (loops) : "0" (loops));
+}
+
+static __inline__ u32 xtensa_get_ccount(void)
+{
+        u32 ccount;
+        asm volatile ("rsr %0, 234; # CCOUNT\n" : "=r" (ccount));
+        return ccount;
+}
+
+/* For SMP/NUMA systems, change boot_cpu_data to something like
+ * local_cpu_data->... where local_cpu_data points to the current
+ * cpu. */
+
+static __inline__ void udelay (unsigned long usecs)
+{
+        unsigned long start = xtensa_get_ccount();
+        unsigned long cycles = usecs * (loops_per_jiffy / (1000000UL / HZ));
+
+        /* Note: all variables are unsigned (can wrap around)! */
+        while (((unsigned long)xtensa_get_ccount()) - start < cycles)
+                ;
+}
+
+#endif
+
diff --git a/include/asm-xtensa/div64.h b/include/asm-xtensa/div64.h
new file mode 100644
index 000000000000..c4a105776383
--- /dev/null
+++ b/include/asm-xtensa/div64.h
@@ -0,0 +1,19 @@
+/*
+ * include/asm-xtensa/div64.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_DIV64_H
+#define _XTENSA_DIV64_H
+
+#define do_div(n,base) ({ \
+        int __res = n % ((unsigned int) base); \
+        n /= (unsigned int) base; \
+        __res; })
+
+#endif
diff --git a/include/asm-xtensa/dma-mapping.h b/include/asm-xtensa/dma-mapping.h
new file mode 100644
index 000000000000..e86a206f1209
--- /dev/null
+++ b/include/asm-xtensa/dma-mapping.h
@@ -0,0 +1,182 @@
+/*
+ * include/asm-xtensa/dma_mapping.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2003 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_DMA_MAPPING_H
+#define _XTENSA_DMA_MAPPING_H
+
+#include <asm/scatterlist.h>
+#include <asm/cache.h>
+#include <asm/io.h>
+#include <linux/mm.h>
+
+/*
+ * DMA-consistent mapping functions.
+ */
+
+extern void *consistent_alloc(int, size_t, dma_addr_t, unsigned long);
+extern void consistent_free(void*, size_t, dma_addr_t);
+extern void consistent_sync(void*, size_t, int);
+
+#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
+#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
+
+void *dma_alloc_coherent(struct device *dev, size_t size,
+                           dma_addr_t *dma_handle, int flag);
+
+void dma_free_coherent(struct device *dev, size_t size,
+                         void *vaddr, dma_addr_t dma_handle);
+
+static inline dma_addr_t
+dma_map_single(struct device *dev, void *ptr, size_t size,
+               enum dma_data_direction direction)
+{
+        BUG_ON(direction == DMA_NONE);
+        consistent_sync(ptr, size, direction);
+        return virt_to_phys(ptr);
+}
+
+static inline void
+dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
+                 enum dma_data_direction direction)
+{
+        BUG_ON(direction == DMA_NONE);
+}
+
+static inline int
+dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
+           enum dma_data_direction direction)
+{
+        int i;
+
+        BUG_ON(direction == DMA_NONE);
+
+        for (i = 0; i < nents; i++, sg++ ) {
+                BUG_ON(!sg->page);
+
+                sg->dma_address = page_to_phys(sg->page) + sg->offset;
+                consistent_sync(page_address(sg->page) + sg->offset,
+                                sg->length, direction);
+        }
+
+        return nents;
+}
+
+static inline dma_addr_t
+dma_map_page(struct device *dev, struct page *page, unsigned long offset,
+             size_t size, enum dma_data_direction direction)
+{
+        BUG_ON(direction == DMA_NONE);
+        return (dma_addr_t)(page_to_pfn(page)) * PAGE_SIZE + offset;
+}
+
+static inline void
+dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
+               enum dma_data_direction direction)
+{
+        BUG_ON(direction == DMA_NONE);
+}
+
+
+static inline void
+dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
+             enum dma_data_direction direction)
+{
+        BUG_ON(direction == DMA_NONE);
+}
+
+static inline void
+dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size,
+                enum dma_data_direction direction)
+{
+        consistent_sync((void *)bus_to_virt(dma_handle), size, direction);
+}
+
+static inline void
+dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, size_t size,
+                enum dma_data_direction direction)
+{
+        consistent_sync((void *)bus_to_virt(dma_handle), size, direction);
+}
+
+static inline void
+dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t dma_handle,
+                      unsigned long offset, size_t size,
+                      enum dma_data_direction direction)
+{
+
+        consistent_sync((void *)bus_to_virt(dma_handle)+offset,size,direction);
+}
+
+static inline void
+dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_handle,
+                      unsigned long offset, size_t size,
+                      enum dma_data_direction direction)
+{
+
+        consistent_sync((void *)bus_to_virt(dma_handle)+offset,size,direction);
+}
+static inline void
+dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems,
+                 enum dma_data_direction dir)
+{
+        int i;
+        for (i = 0; i < nelems; i++, sg++)
+                consistent_sync(page_address(sg->page) + sg->offset,
+                                sg->length, dir);
+}
+
+static inline void
+dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nelems,
+                 enum dma_data_direction dir)
+{
+        int i;
+        for (i = 0; i < nelems; i++, sg++)
+                consistent_sync(page_address(sg->page) + sg->offset,
+                                sg->length, dir);
+}
+static inline int
+dma_mapping_error(dma_addr_t dma_addr)
+{
+        return 0;
+}
+
+static inline int
+dma_supported(struct device *dev, u64 mask)
+{
+        return 1;
+}
+
+static inline int
+dma_set_mask(struct device *dev, u64 mask)
+{
+        if(!dev->dma_mask || !dma_supported(dev, mask))
+                return -EIO;
+
+        *dev->dma_mask = mask;
+
+        return 0;
+}
+
+static inline int
+dma_get_cache_alignment(void)
+{
+        return L1_CACHE_BYTES;
+}
+
+#define dma_is_consistent(d)    (1)
+
+static inline void
+dma_cache_sync(void *vaddr, size_t size,
+               enum dma_data_direction direction)
+{
+        consistent_sync(vaddr, size, direction);
+}
+
+#endif  /* _XTENSA_DMA_MAPPING_H */
diff --git a/include/asm-xtensa/dma.h b/include/asm-xtensa/dma.h
new file mode 100644
index 000000000000..1c22b0234586
--- /dev/null
+++ b/include/asm-xtensa/dma.h
@@ -0,0 +1,61 @@
+/*
+ * include/asm-xtensa/dma.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2003 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_DMA_H
+#define _XTENSA_DMA_H
+
+#include <linux/config.h>
+#include <asm/io.h>             /* need byte IO */
+#include <xtensa/config/core.h>
+
+/*
+ * This is only to be defined if we have PC-like DMA.
+ * By default this is not true on an Xtensa processor,
+ * however on boards with a PCI bus, such functionality
+ * might be emulated externally.
+ *
+ * NOTE:  there still exists driver code that assumes
+ * this is defined, eg. drivers/sound/soundcard.c (as of 2.4).
+ */
+#define MAX_DMA_CHANNELS        8
+
+/*
+ * The maximum virtual address to which DMA transfers
+ * can be performed on this platform.
+ *
+ * NOTE: This is board (platform) specific, not processor-specific!
+ *
+ * NOTE: This assumes DMA transfers can only be performed on
+ *      the section of physical memory contiguously mapped in virtual
+ *      space for the kernel.  For the Xtensa architecture, this
+ *      means the maximum possible size of this DMA area is
+ *      the size of the statically mapped kernel segment
+ *      (XCHAL_KSEG_{CACHED,BYPASS}_SIZE), ie. 128 MB.
+ *
+ * NOTE: When the entire KSEG area is DMA capable, we substract
+ *      one from the max address so that the virt_to_phys() macro
+ *      works correctly on the address (otherwise the address
+ *      enters another area, and virt_to_phys() may not return
+ *      the value desired).
+ */
+#define MAX_DMA_ADDRESS         (PAGE_OFFSET + XCHAL_KSEG_CACHED_SIZE - 1)
+
+/* Reserve and release a DMA channel */
+extern int request_dma(unsigned int dmanr, const char * device_id);
+extern void free_dma(unsigned int dmanr);
+
+#ifdef CONFIG_PCI
+extern int isa_dma_bridge_buggy;
+#else
+#define isa_dma_bridge_buggy    (0)
+#endif
+
+
+#endif
diff --git a/include/asm-xtensa/elf.h b/include/asm-xtensa/elf.h
new file mode 100644
index 000000000000..64f1f53874fe
--- /dev/null
+++ b/include/asm-xtensa/elf.h
@@ -0,0 +1,222 @@
+/*
+ * include/asm-xtensa/elf.h
+ *
+ * ELF register definitions
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_ELF_H
+#define _XTENSA_ELF_H
+
+#include <asm/ptrace.h>
+#include <asm/coprocessor.h>
+#include <xtensa/config/core.h>
+
+/* Xtensa processor ELF architecture-magic number */
+
+#define EM_XTENSA       94
+#define EM_XTENSA_OLD   0xABC7
+
+/* ELF register definitions. This is needed for core dump support.  */
+
+/*
+ * elf_gregset_t contains the application-level state in the following order:
+ * Processor info:      config_version, cpuxy
+ * Processor state:     pc, ps, exccause, excvaddr, wb, ws,
+ *                      lbeg, lend, lcount, sar
+ * GP regs:             ar0 - arXX
+ */
+
+typedef unsigned long elf_greg_t;
+
+typedef struct {
+        elf_greg_t xchal_config_id0;
+        elf_greg_t xchal_config_id1;
+        elf_greg_t cpux;
+        elf_greg_t cpuy;
+        elf_greg_t pc;
+        elf_greg_t ps;
+        elf_greg_t exccause;
+        elf_greg_t excvaddr;
+        elf_greg_t windowbase;
+        elf_greg_t windowstart;
+        elf_greg_t lbeg;
+        elf_greg_t lend;
+        elf_greg_t lcount;
+        elf_greg_t sar;
+        elf_greg_t syscall;
+        elf_greg_t ar[XCHAL_NUM_AREGS];
+} xtensa_gregset_t;
+
+#define ELF_NGREG       (sizeof(xtensa_gregset_t) / sizeof(elf_greg_t))
+
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+/*
+ *  Compute the size of the coprocessor and extra state layout (register info)
+ *  table (in bytes).
+ *  This is actually the maximum size of the table, as opposed to the size,
+ *  which is available from the _xtensa_reginfo_table_size global variable.
+ *
+ *  (See also arch/xtensa/kernel/coprocessor.S)
+ *
+ */
+
+#ifndef XCHAL_EXTRA_SA_CONTENTS_LIBDB_NUM
+# define XTENSA_CPE_LTABLE_SIZE         0
+#else
+# define XTENSA_CPE_SEGMENT(num)        (num ? (1+num) : 0)
+# define XTENSA_CPE_LTABLE_ENTRIES      \
+                ( XTENSA_CPE_SEGMENT(XCHAL_EXTRA_SA_CONTENTS_LIBDB_NUM) \
+                + XTENSA_CPE_SEGMENT(XCHAL_CP0_SA_CONTENTS_LIBDB_NUM)   \
+                + XTENSA_CPE_SEGMENT(XCHAL_CP1_SA_CONTENTS_LIBDB_NUM)   \
+                + XTENSA_CPE_SEGMENT(XCHAL_CP2_SA_CONTENTS_LIBDB_NUM)   \
+                + XTENSA_CPE_SEGMENT(XCHAL_CP3_SA_CONTENTS_LIBDB_NUM)   \
+                + XTENSA_CPE_SEGMENT(XCHAL_CP4_SA_CONTENTS_LIBDB_NUM)   \
+                + XTENSA_CPE_SEGMENT(XCHAL_CP5_SA_CONTENTS_LIBDB_NUM)   \
+                + XTENSA_CPE_SEGMENT(XCHAL_CP6_SA_CONTENTS_LIBDB_NUM)   \
+                + XTENSA_CPE_SEGMENT(XCHAL_CP7_SA_CONTENTS_LIBDB_NUM)   \
+                + 1             /* final entry */                       \
+                )
+# define XTENSA_CPE_LTABLE_SIZE         (XTENSA_CPE_LTABLE_ENTRIES * 8)
+#endif
+
+
+/*
+ * Instantiations of the elf_fpregset_t type contain, in most
+ * architectures, the floating point (FPU) register set.
+ * For Xtensa, this type is extended to contain all custom state,
+ * ie. coprocessor and "extra" (non-coprocessor) state (including,
+ * for example, TIE-defined states and register files; as well
+ * as other optional processor state).
+ * This includes FPU state if a floating-point coprocessor happens
+ * to have been configured within the Xtensa processor.
+ *
+ * TOTAL_FPREGS_SIZE is the required size (without rounding)
+ * of elf_fpregset_t.  It provides space for the following:
+ *
+ *  a)  32-bit mask of active coprocessors for this task (similar
+ *      to CPENABLE in single-threaded Xtensa processor systems)
+ *
+ *  b)  table describing the layout of custom states (ie. of
+ *      individual registers, etc) within the save areas
+ *
+ *  c)  save areas for each coprocessor and for non-coprocessor
+ *      ("extra") state
+ *
+ * Note that save areas may require up to 16-byte alignment when
+ * accessed by save/restore sequences.  We do not need to ensure
+ * such alignment in an elf_fpregset_t structure because custom
+ * state is not directly loaded/stored into it; rather, save area
+ * contents are copied to elf_fpregset_t from the active save areas
+ * (see 'struct task_struct' definition in processor.h for that)
+ * using memcpy().  But we do allow space for such alignment,
+ * to allow optimizations of layout and copying.
+ */
+
+#define TOTAL_FPREGS_SIZE                                               \
+        (4 + XTENSA_CPE_LTABLE_SIZE + XTENSA_CP_EXTRA_SIZE)
+#define ELF_NFPREG                                                      \
+        ((TOTAL_FPREGS_SIZE + sizeof(elf_fpreg_t) - 1) / sizeof(elf_fpreg_t))
+
+typedef unsigned int elf_fpreg_t;
+typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
+
+#define ELF_CORE_COPY_REGS(_eregs, _pregs)                              \
+        xtensa_elf_core_copy_regs (&_eregs, _pregs);
+
+extern void xtensa_elf_core_copy_regs (xtensa_gregset_t *, struct pt_regs *);
+
+/*
+ * This is used to ensure we don't load something for the wrong architecture.
+ */
+
+#define elf_check_arch(x) ( ( (x)->e_machine == EM_XTENSA )  || \
+                            ( (x)->e_machine == EM_XTENSA_OLD ) )
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+
+#ifdef __XTENSA_EL__
+# define ELF_DATA       ELFDATA2LSB
+#elif defined(__XTENSA_EB__)
+# define ELF_DATA       ELFDATA2MSB
+#else
+# error processor byte order undefined!
+#endif
+
+#define ELF_CLASS       ELFCLASS32
+#define ELF_ARCH        EM_XTENSA
+
+#define USE_ELF_CORE_DUMP
+#define ELF_EXEC_PAGESIZE       PAGE_SIZE
+
+/*
+ * This is the location that an ET_DYN program is loaded if exec'ed.  Typical
+ * use of this is to invoke "./ld.so someprog" to test out a new version of
+ * the loader.  We need to make sure that it is out of the way of the program
+ * that it will "exec", and that there is sufficient room for the brk.
+ */
+
+#define ELF_ET_DYN_BASE         (2 * TASK_SIZE / 3)
+
+/*
+ * This yields a mask that user programs can use to figure out what
+ * instruction set this CPU supports.  This could be done in user space,
+ * but it's not easy, and we've already done it here.
+ */
+
+#define ELF_HWCAP       (0)
+
+/*
+ * This yields a string that ld.so will use to load implementation
+ * specific libraries for optimization.  This is more specific in
+ * intent than poking at uname or /proc/cpuinfo.
+ * For the moment, we have only optimizations for the Intel generations,
+ * but that could change...
+ */
+
+#define ELF_PLATFORM  (NULL)
+
+/*
+ * The Xtensa processor ABI says that when the program starts, a2
+ * contains a pointer to a function which might be registered using
+ * `atexit'.  This provides a mean for the dynamic linker to call
+ * DT_FINI functions for shared libraries that have been loaded before
+ * the code runs.
+ *
+ * A value of 0 tells we have no such handler.
+ *
+ * We might as well make sure everything else is cleared too (except
+ * for the stack pointer in a1), just to make things more
+ * deterministic.  Also, clearing a0 terminates debugger backtraces.
+ */
+
+#define ELF_PLAT_INIT(_r, load_addr) \
+  do { _r->areg[0]=0; /*_r->areg[1]=0;*/ _r->areg[2]=0;  _r->areg[3]=0;  \
+       _r->areg[4]=0;  _r->areg[5]=0;    _r->areg[6]=0;  _r->areg[7]=0;  \
+       _r->areg[8]=0;  _r->areg[9]=0;    _r->areg[10]=0; _r->areg[11]=0; \
+       _r->areg[12]=0; _r->areg[13]=0;   _r->areg[14]=0; _r->areg[15]=0; \
+  } while (0)
+
+#ifdef __KERNEL__
+
+#define SET_PERSONALITY(ex, ibcs2) set_personality(PER_LINUX_32BIT)
+
+extern void do_copy_regs (xtensa_gregset_t*, struct pt_regs*,
+                          struct task_struct*);
+extern void do_restore_regs (xtensa_gregset_t*, struct pt_regs*,
+                             struct task_struct*);
+extern void do_save_fpregs (elf_fpregset_t*, struct pt_regs*,
+                            struct task_struct*);
+extern int do_restore_fpregs (elf_fpregset_t*, struct pt_regs*,
+                              struct task_struct*);
+
+#endif  /* __KERNEL__ */
+#endif  /* _XTENSA_ELF_H */
diff --git a/include/asm-xtensa/errno.h b/include/asm-xtensa/errno.h
new file mode 100644
index 000000000000..ced5194d2750
--- /dev/null
+++ b/include/asm-xtensa/errno.h
@@ -0,0 +1,142 @@
+/*
+ * include/asm-xtensa/errno.h
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file "COPYING" in the main directory of
+ * this archive for more details.
+ *
+ * Copyright (C) 2002 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_ERRNO_H
+#define _XTENSA_ERRNO_H
+
+#define EPERM            1      /* Operation not permitted */
+#define ENOENT           2      /* No such file or directory */
+#define ESRCH            3      /* No such process */
+#define EINTR            4      /* Interrupted system call */
+#define EIO              5      /* I/O error */
+#define ENXIO            6      /* No such device or address */
+#define E2BIG            7      /* Arg list too long */
+#define ENOEXEC          8      /* Exec format error */
+#define EBADF            9      /* Bad file number */
+#define ECHILD          10      /* No child processes */
+#define EAGAIN          11      /* Try again */
+#define ENOMEM          12      /* Out of memory */
+#define EACCES          13      /* Permission denied */
+#define EFAULT          14      /* Bad address */
+#define ENOTBLK         15      /* Block device required */
+#define EBUSY           16      /* Device or resource busy */
+#define EEXIST          17      /* File exists */
+#define EXDEV           18      /* Cross-device link */
+#define ENODEV          19      /* No such device */
+#define ENOTDIR         20      /* Not a directory */
+#define EISDIR          21      /* Is a directory */
+#define EINVAL          22      /* Invalid argument */
+#define ENFILE          23      /* File table overflow */
+#define EMFILE          24      /* Too many open files */
+#define ENOTTY          25      /* Not a typewriter */
+#define ETXTBSY         26      /* Text file busy */
+#define EFBIG           27      /* File too large */
+#define ENOSPC          28      /* No space left on device */
+#define ESPIPE          29      /* Illegal seek */
+#define EROFS           30      /* Read-only file system */
+#define EMLINK          31      /* Too many links */
+#define EPIPE           32      /* Broken pipe */
+#define EDOM            33      /* Math argument out of domain of func */
+#define ERANGE          34      /* Math result not representable */
+#define EDEADLK         35      /* Resource deadlock would occur */
+#define ENAMETOOLONG    36      /* File name too long */
+#define ENOLCK          37      /* No record locks available */
+#define ENOSYS          38      /* Function not implemented */
+#define ENOTEMPTY       39      /* Directory not empty */
+#define ELOOP           40      /* Too many symbolic links encountered */
+#define EWOULDBLOCK     EAGAIN  /* Operation would block */
+#define ENOMSG          42      /* No message of desired type */
+#define EIDRM           43      /* Identifier removed */
+#define ECHRNG          44      /* Channel number out of range */
+#define EL2NSYNC        45      /* Level 2 not synchronized */
+#define EL3HLT          46      /* Level 3 halted */
+#define EL3RST          47      /* Level 3 reset */
+#define ELNRNG          48      /* Link number out of range */
+#define EUNATCH         49      /* Protocol driver not attached */
+#define ENOCSI          50      /* No CSI structure available */
+#define EL2HLT          51      /* Level 2 halted */
+#define EBADE           52      /* Invalid exchange */
+#define EBADR           53      /* Invalid request descriptor */
+#define EXFULL          54      /* Exchange full */
+#define ENOANO          55      /* No anode */
+#define EBADRQC         56      /* Invalid request code */
+#define EBADSLT         57      /* Invalid slot */
+
+#define EDEADLOCK       EDEADLK
+
+#define EBFONT          59      /* Bad font file format */
+#define ENOSTR          60      /* Device not a stream */
+#define ENODATA         61      /* No data available */
+#define ETIME           62      /* Timer expired */
+#define ENOSR           63      /* Out of streams resources */
+#define ENONET          64      /* Machine is not on the network */
+#define ENOPKG          65      /* Package not installed */
+#define EREMOTE         66      /* Object is remote */
+#define ENOLINK         67      /* Link has been severed */
+#define EADV            68      /* Advertise error */
+#define ESRMNT          69      /* Srmount error */
+#define ECOMM           70      /* Communication error on send */
+#define EPROTO          71      /* Protocol error */
+#define EMULTIHOP       72      /* Multihop attempted */
+#define EDOTDOT         73      /* RFS specific error */
+#define EBADMSG         74      /* Not a data message */
+#define EOVERFLOW       75      /* Value too large for defined data type */
+#define ENOTUNIQ        76      /* Name not unique on network */
+#define EBADFD          77      /* File descriptor in bad state */
+#define EREMCHG         78      /* Remote address changed */
+#define ELIBACC         79      /* Can not access a needed shared library */
+#define ELIBBAD         80      /* Accessing a corrupted shared library */
+#define ELIBSCN         81      /* .lib section in a.out corrupted */
+#define ELIBMAX         82      /* Attempting to link in too many shared libraries */
+#define ELIBEXEC        83      /* Cannot exec a shared library directly */
+#define EILSEQ          84      /* Illegal byte sequence */
+#define ERESTART        85      /* Interrupted system call should be restarted */
+#define ESTRPIPE        86      /* Streams pipe error */
+#define EUSERS          87      /* Too many users */
+#define ENOTSOCK        88      /* Socket operation on non-socket */
+#define EDESTADDRREQ    89      /* Destination address required */
+#define EMSGSIZE        90      /* Message too long */
+#define EPROTOTYPE      91      /* Protocol wrong type for socket */
+#define ENOPROTOOPT     92      /* Protocol not available */
+#define EPROTONOSUPPORT 93      /* Protocol not supported */
+#define ESOCKTNOSUPPORT 94      /* Socket type not supported */
+#define EOPNOTSUPP      95      /* Operation not supported on transport endpoint */
+#define EPFNOSUPPORT    96      /* Protocol family not supported */
+#define EAFNOSUPPORT    97      /* Address family not supported by protocol */
+#define EADDRINUSE      98      /* Address already in use */
+#define EADDRNOTAVAIL   99      /* Cannot assign requested address */
+#define ENETDOWN        100     /* Network is down */
+#define ENETUNREACH     101     /* Network is unreachable */
+#define ENETRESET       102     /* Network dropped connection because of reset */
+#define ECONNABORTED    103     /* Software caused connection abort */
+#define ECONNRESET      104     /* Connection reset by peer */
+#define ENOBUFS         105     /* No buffer space available */
+#define EISCONN         106     /* Transport endpoint is already connected */
+#define ENOTCONN        107     /* Transport endpoint is not connected */
+#define ESHUTDOWN       108     /* Cannot send after transport endpoint shutdown */
+#define ETOOMANYREFS    109     /* Too many references: cannot splice */
+#define ETIMEDOUT       110     /* Connection timed out */
+#define ECONNREFUSED    111     /* Connection refused */
+#define EHOSTDOWN       112     /* Host is down */
+#define EHOSTUNREACH    113     /* No route to host */
+#define EALREADY        114     /* Operation already in progress */
+#define EINPROGRESS     115     /* Operation now in progress */
+#define ESTALE          116     /* Stale NFS file handle */
+#define EUCLEAN         117     /* Structure needs cleaning */
+#define ENOTNAM         118     /* Not a XENIX named type file */
+#define ENAVAIL         119     /* No XENIX semaphores available */
+#define EISNAM          120     /* Is a named type file */
+#define EREMOTEIO       121     /* Remote I/O error */
+#define EDQUOT          122     /* Quota exceeded */
+
+#define ENOMEDIUM       123     /* No medium found */
+#define EMEDIUMTYPE     124     /* Wrong medium type */
+
+#endif  /* _XTENSA_ERRNO_H */
diff --git a/include/asm-xtensa/fcntl.h b/include/asm-xtensa/fcntl.h
new file mode 100644
index 000000000000..48876bb727d2
--- /dev/null
+++ b/include/asm-xtensa/fcntl.h
@@ -0,0 +1,101 @@
+/*
+ * include/asm-xtensa/fcntl.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1995, 1996, 1997, 1998 by Ralf Baechle
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_FCNTL_H
+#define _XTENSA_FCNTL_H
+
+/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
+   located on an ext2 file system */
+#define O_ACCMODE       0x0003
+#define O_RDONLY        0x0000
+#define O_WRONLY        0x0001
+#define O_RDWR          0x0002
+#define O_APPEND        0x0008
+#define O_SYNC          0x0010
+#define O_NONBLOCK      0x0080
+#define O_CREAT         0x0100  /* not fcntl */
+#define O_TRUNC         0x0200  /* not fcntl */
+#define O_EXCL          0x0400  /* not fcntl */
+#define O_NOCTTY        0x0800  /* not fcntl */
+#define FASYNC          0x1000  /* fcntl, for BSD compatibility */
+#define O_LARGEFILE     0x2000  /* allow large file opens - currently ignored */
+#define O_DIRECT        0x8000  /* direct disk access hint - currently ignored*/
+#define O_DIRECTORY     0x10000 /* must be a directory */
+#define O_NOFOLLOW      0x20000 /* don't follow links */
+#define O_NOATIME       0x100000
+
+#define O_NDELAY        O_NONBLOCK
+
+#define F_DUPFD         0       /* dup */
+#define F_GETFD         1       /* get close_on_exec */
+#define F_SETFD         2       /* set/clear close_on_exec */
+#define F_GETFL         3       /* get file->f_flags */
+#define F_SETFL         4       /* set file->f_flags */
+#define F_GETLK         14
+#define F_GETLK64       15
+#define F_SETLK         6
+#define F_SETLKW        7
+#define F_SETLK64       16
+#define F_SETLKW64      17
+
+#define F_SETOWN        24      /*  for sockets. */
+#define F_GETOWN        23      /*  for sockets. */
+#define F_SETSIG        10      /*  for sockets. */
+#define F_GETSIG        11      /*  for sockets. */
+
+/* for F_[GET|SET]FL */
+#define FD_CLOEXEC      1       /* actually anything with low bit set goes */
+
+/* for posix fcntl() and lockf() */
+#define F_RDLCK         0
+#define F_WRLCK         1
+#define F_UNLCK         2
+
+/* for old implementation of bsd flock () */
+#define F_EXLCK         4       /* or 3 */
+#define F_SHLCK         8       /* or 4 */
+
+/* for leases */
+#define F_INPROGRESS    16
+
+/* operations for bsd flock(), also used by the kernel implementation */
+#define LOCK_SH         1       /* shared lock */
+#define LOCK_EX         2       /* exclusive lock */
+#define LOCK_NB         4       /* or'd with one of the above to prevent
+                                   blocking */
+#define LOCK_UN         8       /* remove lock */
+
+#define LOCK_MAND       32      /* This is a mandatory flock ... */
+#define LOCK_READ       64      /*  which allows concurrent read operations */
+#define LOCK_WRITE      128     /*  which allows concurrent write operations */
+#define LOCK_RW         192     /*  which allows concurrent read & write ops */
+
+typedef struct flock {
+        short l_type;
+        short l_whence;
+        __kernel_off_t l_start;
+        __kernel_off_t l_len;
+        long  l_sysid;
+        __kernel_pid_t l_pid;
+        long  pad[4];
+} flock_t;
+
+struct flock64 {
+        short  l_type;
+        short  l_whence;
+        __kernel_off_t l_start;
+        __kernel_off_t l_len;
+        pid_t  l_pid;
+};
+
+#define F_LINUX_SPECIFIC_BASE   1024
+
+#endif /* _XTENSA_FCNTL_H */
diff --git a/include/asm-xtensa/fixmap.h b/include/asm-xtensa/fixmap.h
new file mode 100644
index 000000000000..4423b8ad4954
--- /dev/null
+++ b/include/asm-xtensa/fixmap.h
@@ -0,0 +1,252 @@
+/*
+ * include/asm-xtensa/fixmap.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_FIXMAP_H
+#define _XTENSA_FIXMAP_H
+
+#include <asm/processor.h>
+
+#ifdef CONFIG_MMU
+
+/*
+ * Here we define all the compile-time virtual addresses.
+ */
+
+#if XCHAL_SEG_MAPPABLE_VADDR != 0
+# error "Current port requires virtual user space starting at 0"
+#endif
+#if XCHAL_SEG_MAPPABLE_SIZE < 0x80000000
+# error "Current port requires at least 0x8000000 bytes for user space"
+#endif
+
+/* Verify instruction/data ram/rom and xlmi don't overlay vmalloc space. */
+
+#define __IN_VMALLOC(addr)                                              \
+        (((addr) >= VMALLOC_START) && ((addr) < VMALLOC_END))
+#define __SPAN_VMALLOC(start,end)                                       \
+        (((start) < VMALLOC_START) && ((end) >= VMALLOC_END))
+#define INSIDE_VMALLOC(start,end)                                       \
+        (__IN_VMALLOC((start)) || __IN_VMALLOC(end) || __SPAN_VMALLOC((start),(end)))
+
+#if XCHAL_NUM_INSTROM
+# if XCHAL_NUM_INSTROM == 1
+#  if INSIDE_VMALLOC(XCHAL_INSTROM0_VADDR,XCHAL_INSTROM0_VADDR+XCHAL_INSTROM0_SIZE)
+#   error vmalloc range conflicts with instrom0
+#  endif
+# endif
+# if XCHAL_NUM_INSTROM == 2
+#  if INSIDE_VMALLOC(XCHAL_INSTROM1_VADDR,XCHAL_INSTROM1_VADDR+XCHAL_INSTROM1_SIZE)
+#   error vmalloc range conflicts with instrom1
+#  endif
+# endif
+#endif
+
+#if XCHAL_NUM_INSTRAM
+# if XCHAL_NUM_INSTRAM == 1
+#  if INSIDE_VMALLOC(XCHAL_INSTRAM0_VADDR,XCHAL_INSTRAM0_VADDR+XCHAL_INSTRAM0_SIZE)
+#   error vmalloc range conflicts with instram0
+#  endif
+# endif
+# if XCHAL_NUM_INSTRAM == 2
+#  if INSIDE_VMALLOC(XCHAL_INSTRAM1_VADDR,XCHAL_INSTRAM1_VADDR+XCHAL_INSTRAM1_SIZE)
+#   error vmalloc range conflicts with instram1
+#  endif
+# endif
+#endif
+
+#if XCHAL_NUM_DATAROM
+# if XCHAL_NUM_DATAROM == 1
+#  if INSIDE_VMALLOC(XCHAL_DATAROM0_VADDR,XCHAL_DATAROM0_VADDR+XCHAL_DATAROM0_SIZE)
+#   error vmalloc range conflicts with datarom0
+#  endif
+# endif
+# if XCHAL_NUM_DATAROM == 2
+#  if INSIDE_VMALLOC(XCHAL_DATAROM1_VADDR,XCHAL_DATAROM1_VADDR+XCHAL_DATAROM1_SIZE)
+#   error vmalloc range conflicts with datarom1
+#  endif
+# endif
+#endif
+
+#if XCHAL_NUM_DATARAM
+# if XCHAL_NUM_DATARAM == 1
+#  if INSIDE_VMALLOC(XCHAL_DATARAM0_VADDR,XCHAL_DATARAM0_VADDR+XCHAL_DATARAM0_SIZE)
+#   error vmalloc range conflicts with dataram0
+#  endif
+# endif
+# if XCHAL_NUM_DATARAM == 2
+#  if INSIDE_VMALLOC(XCHAL_DATARAM1_VADDR,XCHAL_DATARAM1_VADDR+XCHAL_DATARAM1_SIZE)
+#   error vmalloc range conflicts with dataram1
+#  endif
+# endif
+#endif
+
+#if XCHAL_NUM_XLMI
+# if XCHAL_NUM_XLMI == 1
+#  if INSIDE_VMALLOC(XCHAL_XLMI0_VADDR,XCHAL_XLMI0_VADDR+XCHAL_XLMI0_SIZE)
+#   error vmalloc range conflicts with xlmi0
+#  endif
+# endif
+# if XCHAL_NUM_XLMI == 2
+#  if INSIDE_VMALLOC(XCHAL_XLMI1_VADDR,XCHAL_XLMI1_VADDR+XCHAL_XLMI1_SIZE)
+#   error vmalloc range conflicts with xlmi1
+#  endif
+# endif
+#endif
+
+#if (XCHAL_NUM_INSTROM > 2) || \
+    (XCHAL_NUM_INSTRAM > 2) || \
+    (XCHAL_NUM_DATARAM > 2) || \
+    (XCHAL_NUM_DATAROM > 2) || \
+    (XCHAL_NUM_XLMI    > 2)
+# error Insufficient checks on vmalloc above for more than 2 devices
+#endif
+
+/*
+ * USER_VM_SIZE does not necessarily equal TASK_SIZE.  We bumped
+ * TASK_SIZE down to 0x4000000 to simplify the handling of windowed
+ * call instructions (currently limited to a range of 1 GByte).  User
+ * tasks may very well reclaim the VM space from 0x40000000 to
+ * 0x7fffffff in the future, so we do not want the kernel becoming
+ * accustomed to having any of its stuff (e.g., page tables) in this
+ * region.  This VM region is no-man's land for now.
+ */
+
+#define USER_VM_START           XCHAL_SEG_MAPPABLE_VADDR
+#define USER_VM_SIZE            0x80000000
+
+/*  Size of page table:  */
+
+#define PGTABLE_SIZE_BITS       (32 - XCHAL_MMU_MIN_PTE_PAGE_SIZE + 2)
+#define PGTABLE_SIZE            (1L << PGTABLE_SIZE_BITS)
+
+/*  All kernel-mappable space:  */
+
+#define KERNEL_ALLMAP_START     (USER_VM_START + USER_VM_SIZE)
+#define KERNEL_ALLMAP_SIZE      (XCHAL_SEG_MAPPABLE_SIZE - KERNEL_ALLMAP_START)
+
+/*  Carve out page table at start of kernel-mappable area:  */
+
+#if KERNEL_ALLMAP_SIZE < PGTABLE_SIZE
+#error "Gimme some space for page table!"
+#endif
+#define PGTABLE_START           KERNEL_ALLMAP_START
+
+/*  Remaining kernel-mappable space:  */
+
+#define KERNEL_MAPPED_START     (KERNEL_ALLMAP_START + PGTABLE_SIZE)
+#define KERNEL_MAPPED_SIZE      (KERNEL_ALLMAP_SIZE - PGTABLE_SIZE)
+
+#if KERNEL_MAPPED_SIZE < 0x01000000     /* 16 MB is arbitrary for now */
+# error "Shouldn't the kernel have at least *some* mappable space?"
+#endif
+
+#define MAX_LOW_MEMORY          XCHAL_KSEG_CACHED_SIZE
+
+#endif
+
+/*
+ *  Some constants used elsewhere, but perhaps only in Xtensa header
+ *  files, so maybe we can get rid of some and access compile-time HAL
+ *  directly...
+ *
+ *  Note:  We assume that system RAM is located at the very start of the
+ *         kernel segments !!
+ */
+#define KERNEL_VM_LOW           XCHAL_KSEG_CACHED_VADDR
+#define KERNEL_VM_HIGH          XCHAL_KSEG_BYPASS_VADDR
+#define KERNEL_SPACE            XCHAL_KSEG_CACHED_VADDR
+
+/*
+ * Returns the physical/virtual addresses of the kernel space
+ * (works with the cached kernel segment only, which is the
+ *  one normally used for kernel operation).
+ */
+
+/*                      PHYSICAL        BYPASS          CACHED
+ *
+ *  bypass vaddr        bypass paddr    *               cached vaddr
+ *  cached vaddr        cached paddr    bypass vaddr    *
+ *  bypass paddr        *               bypass vaddr    cached vaddr
+ *  cached paddr        *               bypass vaddr    cached vaddr
+ *  other               *               *               *
+ */
+
+#define PHYSADDR(a)                                                           \
+(((unsigned)(a) >= XCHAL_KSEG_BYPASS_VADDR                                    \
+  && (unsigned)(a) < XCHAL_KSEG_BYPASS_VADDR + XCHAL_KSEG_BYPASS_SIZE) ?      \
+    (unsigned)(a) - XCHAL_KSEG_BYPASS_VADDR + XCHAL_KSEG_BYPASS_PADDR :       \
+    ((unsigned)(a) >= XCHAL_KSEG_CACHED_VADDR                                 \
+     && (unsigned)(a) < XCHAL_KSEG_CACHED_VADDR + XCHAL_KSEG_CACHED_SIZE) ?   \
+        (unsigned)(a) - XCHAL_KSEG_CACHED_VADDR + XCHAL_KSEG_CACHED_PADDR :   \
+        (unsigned)(a))
+
+#define BYPASS_ADDR(a)                                                        \
+(((unsigned)(a) >= XCHAL_KSEG_BYPASS_PADDR                                    \
+  && (unsigned)(a) < XCHAL_KSEG_BYPASS_PADDR + XCHAL_KSEG_BYPASS_SIZE) ?      \
+    (unsigned)(a) - XCHAL_KSEG_BYPASS_PADDR + XCHAL_KSEG_BYPASS_VADDR :       \
+    ((unsigned)(a) >= XCHAL_KSEG_CACHED_PADDR                                 \
+     && (unsigned)(a) < XCHAL_KSEG_CACHED_PADDR + XCHAL_KSEG_CACHED_SIZE) ?   \
+        (unsigned)(a) - XCHAL_KSEG_CACHED_PADDR + XCHAL_KSEG_BYPASS_VADDR :   \
+        ((unsigned)(a) >= XCHAL_KSEG_CACHED_VADDR                             \
+         && (unsigned)(a) < XCHAL_KSEG_CACHED_VADDR+XCHAL_KSEG_CACHED_SIZE)?  \
+            (unsigned)(a) - XCHAL_KSEG_CACHED_VADDR+XCHAL_KSEG_BYPASS_VADDR:  \
+            (unsigned)(a))
+
+#define CACHED_ADDR(a)                                                        \
+(((unsigned)(a) >= XCHAL_KSEG_BYPASS_PADDR                                    \
+  && (unsigned)(a) < XCHAL_KSEG_BYPASS_PADDR + XCHAL_KSEG_BYPASS_SIZE) ?      \
+    (unsigned)(a) - XCHAL_KSEG_BYPASS_PADDR + XCHAL_KSEG_CACHED_VADDR :       \
+    ((unsigned)(a) >= XCHAL_KSEG_CACHED_PADDR                                 \
+     && (unsigned)(a) < XCHAL_KSEG_CACHED_PADDR + XCHAL_KSEG_CACHED_SIZE) ?   \
+        (unsigned)(a) - XCHAL_KSEG_CACHED_PADDR + XCHAL_KSEG_CACHED_VADDR :   \
+        ((unsigned)(a) >= XCHAL_KSEG_BYPASS_VADDR                             \
+         && (unsigned)(a) < XCHAL_KSEG_BYPASS_VADDR+XCHAL_KSEG_BYPASS_SIZE) ? \
+            (unsigned)(a) - XCHAL_KSEG_BYPASS_VADDR+XCHAL_KSEG_CACHED_VADDR : \
+            (unsigned)(a))
+
+#define PHYSADDR_IO(a)                                                        \
+(((unsigned)(a) >= XCHAL_KIO_BYPASS_VADDR                                     \
+  && (unsigned)(a) < XCHAL_KIO_BYPASS_VADDR + XCHAL_KIO_BYPASS_SIZE) ?        \
+    (unsigned)(a) - XCHAL_KIO_BYPASS_VADDR + XCHAL_KIO_BYPASS_PADDR :         \
+    ((unsigned)(a) >= XCHAL_KIO_CACHED_VADDR                                  \
+     && (unsigned)(a) < XCHAL_KIO_CACHED_VADDR + XCHAL_KIO_CACHED_SIZE) ?     \
+        (unsigned)(a) - XCHAL_KIO_CACHED_VADDR + XCHAL_KIO_CACHED_PADDR :     \
+        (unsigned)(a))
+
+#define BYPASS_ADDR_IO(a)                                                     \
+(((unsigned)(a) >= XCHAL_KIO_BYPASS_PADDR                                     \
+  && (unsigned)(a) < XCHAL_KIO_BYPASS_PADDR + XCHAL_KIO_BYPASS_SIZE) ?        \
+    (unsigned)(a) - XCHAL_KIO_BYPASS_PADDR + XCHAL_KIO_BYPASS_VADDR :         \
+    ((unsigned)(a) >= XCHAL_KIO_CACHED_PADDR                                  \
+     && (unsigned)(a) < XCHAL_KIO_CACHED_PADDR + XCHAL_KIO_CACHED_SIZE) ?     \
+        (unsigned)(a) - XCHAL_KIO_CACHED_PADDR + XCHAL_KIO_BYPASS_VADDR :     \
+        ((unsigned)(a) >= XCHAL_KIO_CACHED_VADDR                              \
+         && (unsigned)(a) < XCHAL_KIO_CACHED_VADDR + XCHAL_KIO_CACHED_SIZE) ? \
+            (unsigned)(a) - XCHAL_KIO_CACHED_VADDR + XCHAL_KIO_BYPASS_VADDR : \
+            (unsigned)(a))
+
+#define CACHED_ADDR_IO(a)                                                     \
+(((unsigned)(a) >= XCHAL_KIO_BYPASS_PADDR                                     \
+  && (unsigned)(a) < XCHAL_KIO_BYPASS_PADDR + XCHAL_KIO_BYPASS_SIZE) ?        \
+    (unsigned)(a) - XCHAL_KIO_BYPASS_PADDR + XCHAL_KIO_CACHED_VADDR :         \
+    ((unsigned)(a) >= XCHAL_KIO_CACHED_PADDR                                  \
+     && (unsigned)(a) < XCHAL_KIO_CACHED_PADDR + XCHAL_KIO_CACHED_SIZE) ?     \
+        (unsigned)(a) - XCHAL_KIO_CACHED_PADDR + XCHAL_KIO_CACHED_VADDR :     \
+        ((unsigned)(a) >= XCHAL_KIO_BYPASS_VADDR                              \
+         && (unsigned)(a) < XCHAL_KIO_BYPASS_VADDR + XCHAL_KIO_BYPASS_SIZE) ? \
+            (unsigned)(a) - XCHAL_KIO_BYPASS_VADDR + XCHAL_KIO_CACHED_VADDR : \
+            (unsigned)(a))
+
+#endif /* _XTENSA_ADDRSPACE_H */
+
+
+
+
+
diff --git a/include/asm-xtensa/hardirq.h b/include/asm-xtensa/hardirq.h
new file mode 100644
index 000000000000..e07c76c36b95
--- /dev/null
+++ b/include/asm-xtensa/hardirq.h
@@ -0,0 +1,28 @@
+/*
+ * include/asm-xtensa/hardirq.h
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file "COPYING" in the main directory of
+ * this archive for more details.
+ *
+ * Copyright (C) 2002 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_HARDIRQ_H
+#define _XTENSA_HARDIRQ_H
+
+#include <linux/config.h>
+#include <linux/cache.h>
+#include <asm/irq.h>
+
+/* headers.S is sensitive to the offsets of these fields */
+typedef struct {
+        unsigned int __softirq_pending;
+        unsigned int __syscall_count;
+        struct task_struct * __ksoftirqd_task; /* waitqueue is too large */
+        unsigned int __nmi_count;              /* arch dependent */
+} ____cacheline_aligned irq_cpustat_t;
+
+#include <linux/irq_cpustat.h>  /* Standard mappings for irq_cpustat_t above */
+
+#endif  /* _XTENSA_HARDIRQ_H */
diff --git a/include/asm-xtensa/hdreg.h b/include/asm-xtensa/hdreg.h
new file mode 100644
index 000000000000..64b80607b80d
--- /dev/null
+++ b/include/asm-xtensa/hdreg.h
@@ -0,0 +1,17 @@
+/*
+ * include/asm-xtensa/hdreg.h
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file "COPYING" in the main directory of
+ * this archive for more details.
+ *
+ * Copyright (C) 2002 - 2005 Tensilica Inc.
+ * Copyright (C) 1994-1996  Linus Torvalds & authors
+ */
+
+#ifndef _XTENSA_HDREG_H
+#define _XTENSA_HDREG_H
+
+typedef unsigned int ide_ioreg_t;
+
+#endif
diff --git a/include/asm-xtensa/highmem.h b/include/asm-xtensa/highmem.h
new file mode 100644
index 000000000000..0a046ca5a687
--- /dev/null
+++ b/include/asm-xtensa/highmem.h
@@ -0,0 +1,17 @@
+/*
+ * include/asm-xtensa/highmem.h
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file "COPYING" in the main directory of
+ * this archive for more details.
+ *
+ * Copyright (C) 2003 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_HIGHMEM_H
+#define _XTENSA_HIGHMEM_H
+
+extern void flush_cache_kmaps(void);
+
+#endif
+
diff --git a/include/asm-xtensa/hw_irq.h b/include/asm-xtensa/hw_irq.h
new file mode 100644
index 000000000000..ccf436249eaa
--- /dev/null
+++ b/include/asm-xtensa/hw_irq.h
@@ -0,0 +1,18 @@
+/*
+ * include/asm-xtensa/hw_irq.h
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file "COPYING" in the main directory of
+ * this archive for more details.
+ *
+ * Copyright (C) 2002 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_HW_IRQ_H
+#define _XTENSA_HW_IRQ_H
+
+static inline void hw_resend_irq(struct hw_interrupt_type *h, unsigned int i)
+{
+}
+
+#endif
diff --git a/include/asm-xtensa/ide.h b/include/asm-xtensa/ide.h
new file mode 100644
index 000000000000..b523cd4a486e
--- /dev/null
+++ b/include/asm-xtensa/ide.h
@@ -0,0 +1,36 @@
+/*
+ * include/asm-xtensa/ide.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1994 - 1996  Linus Torvalds & authors
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_IDE_H
+#define _XTENSA_IDE_H
+
+#ifdef __KERNEL__
+
+#include <linux/config.h>
+
+#ifndef MAX_HWIFS
+# define MAX_HWIFS      1
+#endif
+
+static __inline__ int ide_default_irq(unsigned long base)
+{
+        /* Unsupported! */
+        return 0;
+}
+
+static __inline__ unsigned long ide_default_io_base(int index)
+{
+        /* Unsupported! */
+        return 0;
+}
+
+#endif  /* __KERNEL__ */
+#endif  /* _XTENSA_IDE_H */
diff --git a/include/asm-xtensa/io.h b/include/asm-xtensa/io.h
new file mode 100644
index 000000000000..2c471c42ecfc
--- /dev/null
+++ b/include/asm-xtensa/io.h
@@ -0,0 +1,197 @@
+/*
+ * linux/include/asm-xtensa/io.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_IO_H
+#define _XTENSA_IO_H
+
+#ifdef __KERNEL__
+#include <linux/config.h>
+#include <asm/byteorder.h>
+
+#include <linux/types.h>
+#include <asm/fixmap.h>
+
+#define _IO_BASE 0
+
+
+/*
+ * swap functions to change byte order from little-endian to big-endian and
+ * vice versa.
+ */
+
+static inline unsigned short _swapw (unsigned short v)
+{
+        return (v << 8) | (v >> 8);
+}
+
+static inline unsigned int _swapl (unsigned int v)
+{
+        return (v << 24) | ((v & 0xff00) << 8) | ((v >> 8) & 0xff00) | (v >> 24);
+}
+
+/*
+ * Change virtual addresses to physical addresses and vv.
+ * These are trivial on the 1:1 Linux/Xtensa mapping
+ */
+
+extern inline unsigned long virt_to_phys(volatile void * address)
+{
+        return PHYSADDR((unsigned long)address);
+}
+
+extern inline void * phys_to_virt(unsigned long address)
+{
+        return (void*) CACHED_ADDR(address);
+}
+
+/*
+ * IO bus memory addresses are also 1:1 with the physical address
+ */
+
+extern inline unsigned long virt_to_bus(volatile void * address)
+{
+        return PHYSADDR((unsigned long)address);
+}
+
+extern inline void * bus_to_virt (unsigned long address)
+{
+        return (void *) CACHED_ADDR(address);
+}
+
+/*
+ * Change "struct page" to physical address.
+ */
+
+extern inline void *ioremap(unsigned long offset, unsigned long size)
+{
+        return (void *) CACHED_ADDR_IO(offset);
+}
+
+extern inline void *ioremap_nocache(unsigned long offset, unsigned long size)
+{
+        return (void *) BYPASS_ADDR_IO(offset);
+}
+
+extern inline void iounmap(void *addr)
+{
+}
+
+/*
+ * Generic I/O
+ */
+
+#define readb(addr) \
+        ({ unsigned char __v = (*(volatile unsigned char *)(addr)); __v; })
+#define readw(addr) \
+        ({ unsigned short __v = (*(volatile unsigned short *)(addr)); __v; })
+#define readl(addr) \
+        ({ unsigned int __v = (*(volatile unsigned int *)(addr)); __v; })
+#define writeb(b, addr) (void)((*(volatile unsigned char *)(addr)) = (b))
+#define writew(b, addr) (void)((*(volatile unsigned short *)(addr)) = (b))
+#define writel(b, addr) (void)((*(volatile unsigned int *)(addr)) = (b))
+
+static inline __u8 __raw_readb(const volatile void __iomem *addr)
+{
+          return *(__force volatile __u8 *)(addr);
+}
+static inline __u16 __raw_readw(const volatile void __iomem *addr)
+{
+          return *(__force volatile __u16 *)(addr);
+}
+static inline __u32 __raw_readl(const volatile void __iomem *addr)
+{
+          return *(__force volatile __u32 *)(addr);
+}
+static inline void __raw_writeb(__u8 b, volatile void __iomem *addr)
+{
+          *(__force volatile __u8 *)(addr) = b;
+}
+static inline void __raw_writew(__u16 b, volatile void __iomem *addr)
+{
+          *(__force volatile __u16 *)(addr) = b;
+}
+static inline void __raw_writel(__u32 b, volatile void __iomem *addr)
+{
+          *(__force volatile __u32 *)(addr) = b;
+}
+
+
+
+
+/* These are the definitions for the x86 IO instructions
+ * inb/inw/inl/outb/outw/outl, the "string" versions
+ * insb/insw/insl/outsb/outsw/outsl, and the "pausing" versions
+ * inb_p/inw_p/...
+ * The macros don't do byte-swapping.
+ */
+
+#define inb(port)               readb((u8 *)((port)+_IO_BASE))
+#define outb(val, port)         writeb((val),(u8 *)((unsigned long)(port)+_IO_BASE))
+#define inw(port)               readw((u16 *)((port)+_IO_BASE))
+#define outw(val, port)         writew((val),(u16 *)((unsigned long)(port)+_IO_BASE))
+#define inl(port)               readl((u32 *)((port)+_IO_BASE))
+#define outl(val, port)         writel((val),(u32 *)((unsigned long)(port)))
+
+#define inb_p(port)             inb((port))
+#define outb_p(val, port)       outb((val), (port))
+#define inw_p(port)             inw((port))
+#define outw_p(val, port)       outw((val), (port))
+#define inl_p(port)             inl((port))
+#define outl_p(val, port)       outl((val), (port))
+
+extern void insb (unsigned long port, void *dst, unsigned long count);
+extern void insw (unsigned long port, void *dst, unsigned long count);
+extern void insl (unsigned long port, void *dst, unsigned long count);
+extern void outsb (unsigned long port, const void *src, unsigned long count);
+extern void outsw (unsigned long port, const void *src, unsigned long count);
+extern void outsl (unsigned long port, const void *src, unsigned long count);
+
+#define IO_SPACE_LIMIT ~0
+
+#define memset_io(a,b,c)       memset((void *)(a),(b),(c))
+#define memcpy_fromio(a,b,c)   memcpy((a),(void *)(b),(c))
+#define memcpy_toio(a,b,c)      memcpy((void *)(a),(b),(c))
+
+/* At this point the Xtensa doesn't provide byte swap instructions */
+
+#ifdef __XTENSA_EB__
+# define in_8(addr) (*(u8*)(addr))
+# define in_le16(addr) _swapw(*(u16*)(addr))
+# define in_le32(addr) _swapl(*(u32*)(addr))
+# define out_8(b, addr) *(u8*)(addr) = (b)
+# define out_le16(b, addr) *(u16*)(addr) = _swapw(b)
+# define out_le32(b, addr) *(u32*)(addr) = _swapl(b)
+#elif defined(__XTENSA_EL__)
+# define in_8(addr)  (*(u8*)(addr))
+# define in_le16(addr) (*(u16*)(addr))
+# define in_le32(addr) (*(u32*)(addr))
+# define out_8(b, addr) *(u8*)(addr) = (b)
+# define out_le16(b, addr) *(u16*)(addr) = (b)
+# define out_le32(b, addr) *(u32*)(addr) = (b)
+#else
+# error processor byte order undefined!
+#endif
+
+
+/*
+ *  * Convert a physical pointer to a virtual kernel pointer for /dev/mem
+ *   * access
+ *    */
+#define xlate_dev_mem_ptr(p)    __va(p)
+
+/*
+ *  * Convert a virtual cached pointer to an uncached pointer
+ *   */
+#define xlate_dev_kmem_ptr(p)   p
+
+
+#endif  /* __KERNEL__ */
+
+#endif  /* _XTENSA_IO_H */
diff --git a/include/asm-xtensa/ioctl.h b/include/asm-xtensa/ioctl.h
new file mode 100644
index 000000000000..856c605d62b1
--- /dev/null
+++ b/include/asm-xtensa/ioctl.h
@@ -0,0 +1,83 @@
+/*
+ * include/asm-xtensa/ioctl.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2003 - 2005 Tensilica Inc.
+ *
+ * Derived from "include/asm-i386/ioctl.h"
+ */
+
+#ifndef _XTENSA_IOCTL_H
+#define _XTENSA_IOCTL_H
+
+
+/* ioctl command encoding: 32 bits total, command in lower 16 bits,
+ * size of the parameter structure in the lower 14 bits of the
+ * upper 16 bits.
+ * Encoding the size of the parameter structure in the ioctl request
+ * is useful for catching programs compiled with old versions
+ * and to avoid overwriting user space outside the user buffer area.
+ * The highest 2 bits are reserved for indicating the ``access mode''.
+ * NOTE: This limits the max parameter size to 16kB -1 !
+ */
+
+/*
+ * The following is for compatibility across the various Linux
+ * platforms.  The i386 ioctl numbering scheme doesn't really enforce
+ * a type field.  De facto, however, the top 8 bits of the lower 16
+ * bits are indeed used as a type field, so we might just as well make
+ * this explicit here.  Please be sure to use the decoding macros
+ * below from now on.
+ */
+#define _IOC_NRBITS     8
+#define _IOC_TYPEBITS   8
+#define _IOC_SIZEBITS   14
+#define _IOC_DIRBITS    2
+
+#define _IOC_NRMASK     ((1 << _IOC_NRBITS)-1)
+#define _IOC_TYPEMASK   ((1 << _IOC_TYPEBITS)-1)
+#define _IOC_SIZEMASK   ((1 << _IOC_SIZEBITS)-1)
+#define _IOC_DIRMASK    ((1 << _IOC_DIRBITS)-1)
+
+#define _IOC_NRSHIFT    0
+#define _IOC_TYPESHIFT  (_IOC_NRSHIFT+_IOC_NRBITS)
+#define _IOC_SIZESHIFT  (_IOC_TYPESHIFT+_IOC_TYPEBITS)
+#define _IOC_DIRSHIFT   (_IOC_SIZESHIFT+_IOC_SIZEBITS)
+
+/*
+ * Direction bits.
+ */
+#define _IOC_NONE       0U
+#define _IOC_WRITE      1U
+#define _IOC_READ       2U
+
+#define _IOC(dir,type,nr,size) \
+        (((dir)  << _IOC_DIRSHIFT) | \
+         ((type) << _IOC_TYPESHIFT) | \
+         ((nr)   << _IOC_NRSHIFT) | \
+         ((size) << _IOC_SIZESHIFT))
+
+/* used to create numbers */
+#define _IO(type,nr)            _IOC(_IOC_NONE,(type),(nr),0)
+#define _IOR(type,nr,size)      _IOC(_IOC_READ,(type),(nr),sizeof(size))
+#define _IOW(type,nr,size)      _IOC(_IOC_WRITE,(type),(nr),sizeof(size))
+#define _IOWR(type,nr,size)     _IOC(_IOC_READ|_IOC_WRITE,(type),(nr),sizeof(size))
+
+/* used to decode ioctl numbers.. */
+#define _IOC_DIR(nr)            (((nr) >> _IOC_DIRSHIFT) & _IOC_DIRMASK)
+#define _IOC_TYPE(nr)           (((nr) >> _IOC_TYPESHIFT) & _IOC_TYPEMASK)
+#define _IOC_NR(nr)             (((nr) >> _IOC_NRSHIFT) & _IOC_NRMASK)
+#define _IOC_SIZE(nr)           (((nr) >> _IOC_SIZESHIFT) & _IOC_SIZEMASK)
+
+/* ...and for the drivers/sound files... */
+
+#define IOC_IN          (_IOC_WRITE << _IOC_DIRSHIFT)
+#define IOC_OUT         (_IOC_READ << _IOC_DIRSHIFT)
+#define IOC_INOUT       ((_IOC_WRITE|_IOC_READ) << _IOC_DIRSHIFT)
+#define IOCSIZE_MASK    (_IOC_SIZEMASK << _IOC_SIZESHIFT)
+#define IOCSIZE_SHIFT   (_IOC_SIZESHIFT)
+
+#endif
diff --git a/include/asm-xtensa/ioctls.h b/include/asm-xtensa/ioctls.h
new file mode 100644
index 000000000000..10c443435c11
--- /dev/null
+++ b/include/asm-xtensa/ioctls.h
@@ -0,0 +1,112 @@
+/*
+ * include/asm-xtensa/ioctl.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2003 - 2005 Tensilica Inc.
+ *
+ * Derived from "include/asm-i386/ioctls.h"
+ */
+
+#ifndef _XTENSA_IOCTLS_H
+#define _XTENSA_IOCTLS_H
+
+#include <asm/ioctl.h>
+
+#define FIOCLEX         _IO('f', 1)
+#define FIONCLEX        _IO('f', 2)
+#define FIOASYNC        _IOW('f', 125, int)
+#define FIONBIO         _IOW('f', 126, int)
+#define FIONREAD        _IOR('f', 127, int)
+#define TIOCINQ         FIONREAD
+#define FIOQSIZE        _IOR('f', 128, loff_t)
+
+#define TCGETS          0x5401
+#define TCSETS          0x5402
+#define TCSETSW         0x5403
+#define TCSETSF         0x5404
+
+#define TCGETA          _IOR('t', 23, struct termio)
+#define TCSETA          _IOW('t', 24, struct termio)
+#define TCSETAW         _IOW('t', 25, struct termio)
+#define TCSETAF         _IOW('t', 28, struct termio)
+
+#define TCSBRK          _IO('t', 29)
+#define TCXONC          _IO('t', 30)
+#define TCFLSH          _IO('t', 31)
+
+#define TIOCSWINSZ      _IOW('t', 103, struct winsize)
+#define TIOCGWINSZ      _IOR('t', 104, struct winsize)
+#define TIOCSTART       _IO('t', 110)           /* start output, like ^Q */
+#define TIOCSTOP        _IO('t', 111)           /* stop output, like ^S */
+#define TIOCOUTQ        _IOR('t', 115, int)     /* output queue size */
+
+#define TIOCSPGRP       _IOW('t', 118, int)
+#define TIOCGPGRP       _IOR('t', 119, int)
+
+#define TIOCEXCL        _IO('T', 12)
+#define TIOCNXCL        _IO('T', 13)
+#define TIOCSCTTY       _IO('T', 14)
+
+#define TIOCSTI         _IOW('T', 18, char)
+#define TIOCMGET        _IOR('T', 21, unsigned int)
+#define TIOCMBIS        _IOW('T', 22, unsigned int)
+#define TIOCMBIC        _IOW('T', 23, unsigned int)
+#define TIOCMSET        _IOW('T', 24, unsigned int)
+# define TIOCM_LE       0x001
+# define TIOCM_DTR      0x002
+# define TIOCM_RTS      0x004
+# define TIOCM_ST       0x008
+# define TIOCM_SR       0x010
+# define TIOCM_CTS      0x020
+# define TIOCM_CAR      0x040
+# define TIOCM_RNG      0x080
+# define TIOCM_DSR      0x100
+# define TIOCM_CD       TIOCM_CAR
+# define TIOCM_RI       TIOCM_RNG
+
+#define TIOCGSOFTCAR    _IOR('T', 25, unsigned int)
+#define TIOCSSOFTCAR    _IOW('T', 26, unsigned int)
+#define TIOCLINUX       _IOW('T', 28, char)
+#define TIOCCONS        _IO('T', 29)
+#define TIOCGSERIAL     _IOR('T', 30, struct serial_struct)
+#define TIOCSSERIAL     _IOW('T', 31, struct serial_struct)
+#define TIOCPKT         _IOW('T', 32, int)
+# define TIOCPKT_DATA            0
+# define TIOCPKT_FLUSHREAD       1
+# define TIOCPKT_FLUSHWRITE      2
+# define TIOCPKT_STOP            4
+# define TIOCPKT_START           8
+# define TIOCPKT_NOSTOP         16
+# define TIOCPKT_DOSTOP         32
+
+
+#define TIOCNOTTY       _IO('T', 34)
+#define TIOCSETD        _IOW('T', 35, int)
+#define TIOCGETD        _IOR('T', 36, int)
+#define TCSBRKP         _IOW('T', 37, int)   /* Needed for POSIX tcsendbreak()*/
+#define TIOCTTYGSTRUCT  _IOR('T', 38, struct tty_struct) /* For debugging only*/
+#define TIOCSBRK        _IO('T', 39)         /* BSD compatibility */
+#define TIOCCBRK        _IO('T', 40)         /* BSD compatibility */
+#define TIOCGSID        _IOR('T', 41, pid_t) /* Return the session ID of FD*/
+#define TIOCGPTN        _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
+#define TIOCSPTLCK      _IOW('T',0x31, int)  /* Lock/unlock Pty */
+
+#define TIOCSERCONFIG   _IO('T', 83)
+#define TIOCSERGWILD    _IOR('T', 84,  int)
+#define TIOCSERSWILD    _IOW('T', 85,  int)
+#define TIOCGLCKTRMIOS  0x5456
+#define TIOCSLCKTRMIOS  0x5457
+#define TIOCSERGSTRUCT  0x5458               /* For debugging only */
+#define TIOCSERGETLSR   _IOR('T', 89, unsigned int) /* Get line status reg. */
+  /* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
+# define TIOCSER_TEMT    0x01                /* Transmitter physically empty */
+#define TIOCSERGETMULTI _IOR('T', 90, struct serial_multiport_struct) /* Get multiport config  */
+#define TIOCSERSETMULTI _IOW('T', 91, struct serial_multiport_struct) /* Set multiport config */
+
+#define TIOCMIWAIT      _IO('T', 92) /* wait for a change on serial input line(s) */
+#define TIOCGICOUNT     _IOR('T', 93, struct async_icount) /* read serial port inline interrupt counts */
+
+#endif /* _XTENSA_IOCTLS_H */
diff --git a/include/asm-xtensa/ipc.h b/include/asm-xtensa/ipc.h
new file mode 100644
index 000000000000..d37bdb4d4c9c
--- /dev/null
+++ b/include/asm-xtensa/ipc.h
@@ -0,0 +1,34 @@
+/*
+ * include/asm-xtensa/ipc.h
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file "COPYING" in the main directory of
+ * this archive for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_IPC_H
+#define _XTENSA_IPC_H
+
+struct ipc_kludge {
+        struct msgbuf __user *msgp;
+        long msgtyp;
+};
+
+#define SEMOP            1
+#define SEMGET           2
+#define SEMCTL           3
+#define SEMTIMEDOP       4
+#define MSGSND          11
+#define MSGRCV          12
+#define MSGGET          13
+#define MSGCTL          14
+#define SHMAT           21
+#define SHMDT           22
+#define SHMGET          23
+#define SHMCTL          24
+
+#define IPCCALL(version,op)     ((version)<<16 | (op))
+
+#endif  /* _XTENSA_IPC_H */
diff --git a/include/asm-xtensa/ipcbuf.h b/include/asm-xtensa/ipcbuf.h
new file mode 100644
index 000000000000..c33aa6a42145
--- /dev/null
+++ b/include/asm-xtensa/ipcbuf.h
@@ -0,0 +1,37 @@
+/*
+ * include/asm-xtensa/ipcbuf.h
+ *
+ * The ipc64_perm structure for the Xtensa architecture.
+ * Note extra padding because this structure is passed back and forth
+ * between kernel and user space.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_IPCBUF_H
+#define _XTENSA_IPCBUF_H
+
+/*
+ * Pad space is left for:
+ * - 32-bit mode_t and seq
+ * - 2 miscellaneous 32-bit values
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file "COPYING" in the main directory of
+ * this archive for more details.
+ */
+
+struct ipc64_perm
+{
+        __kernel_key_t          key;
+        __kernel_uid32_t        uid;
+        __kernel_gid32_t        gid;
+        __kernel_uid32_t        cuid;
+        __kernel_gid32_t        cgid;
+        __kernel_mode_t         mode;
+        unsigned long           seq;
+        unsigned long           __unused1;
+        unsigned long           __unused2;
+};
+
+#endif /* _XTENSA_IPCBUF_H */
diff --git a/include/asm-xtensa/irq.h b/include/asm-xtensa/irq.h
new file mode 100644
index 000000000000..d984e955938f
--- /dev/null
+++ b/include/asm-xtensa/irq.h
@@ -0,0 +1,37 @@
+/*
+ * include/asm-xtensa/irq.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_IRQ_H
+#define _XTENSA_IRQ_H
+
+#include <linux/config.h>
+#include <asm/platform/hardware.h>
+
+#include <xtensa/config/core.h>
+
+#ifndef PLATFORM_NR_IRQS
+# define PLATFORM_NR_IRQS 0
+#endif
+#define XTENSA_NR_IRQS XCHAL_NUM_INTERRUPTS
+#define NR_IRQS (XTENSA_NR_IRQS + PLATFORM_NR_IRQS)
+
+static __inline__ int irq_canonicalize(int irq)
+{
+        return (irq);
+}
+
+struct irqaction;
+#if 0 // FIXME
+extern void disable_irq_nosync(unsigned int);
+extern void disable_irq(unsigned int);
+extern void enable_irq(unsigned int);
+#endif
+
+#endif  /* _XTENSA_IRQ_H */
diff --git a/include/asm-xtensa/kmap_types.h b/include/asm-xtensa/kmap_types.h
new file mode 100644
index 000000000000..9e822d2e3bce
--- /dev/null
+++ b/include/asm-xtensa/kmap_types.h
@@ -0,0 +1,31 @@
+/*
+ * include/asm-xtensa/kmap_types.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_KMAP_TYPES_H
+#define _XTENSA_KMAP_TYPES_H
+
+enum km_type {
+  KM_BOUNCE_READ,
+  KM_SKB_SUNRPC_DATA,
+  KM_SKB_DATA_SOFTIRQ,
+  KM_USER0,
+  KM_USER1,
+  KM_BIO_SRC_IRQ,
+  KM_BIO_DST_IRQ,
+  KM_PTE0,
+  KM_PTE1,
+  KM_IRQ0,
+  KM_IRQ1,
+  KM_SOFTIRQ0,
+  KM_SOFTIRQ1,
+  KM_TYPE_NR
+};
+
+#endif  /* _XTENSA_KMAP_TYPES_H */
diff --git a/include/asm-xtensa/linkage.h b/include/asm-xtensa/linkage.h
new file mode 100644
index 000000000000..bf2128a99d79
--- /dev/null
+++ b/include/asm-xtensa/linkage.h
@@ -0,0 +1,16 @@
+/*
+ * include/asm-xtensa/linkage.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_LINKAGE_H
+#define _XTENSA_LINKAGE_H
+
+/* Nothing to do here ... */
+
+#endif  /* _XTENSA_LINKAGE_H */
diff --git a/include/asm-xtensa/local.h b/include/asm-xtensa/local.h
new file mode 100644
index 000000000000..48723e550d14
--- /dev/null
+++ b/include/asm-xtensa/local.h
@@ -0,0 +1,16 @@
+/*
+ * include/asm-xtensa/local.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_LOCAL_H
+#define _XTENSA_LOCAL_H
+
+#include <asm-generic/local.h>
+
+#endif /* _XTENSA_LOCAL_H */
diff --git a/include/asm-xtensa/mman.h b/include/asm-xtensa/mman.h
new file mode 100644
index 000000000000..9a95a45df996
--- /dev/null
+++ b/include/asm-xtensa/mman.h
@@ -0,0 +1,80 @@
+/*
+ * include/asm-xtensa/mman.h
+ *
+ * Xtensa Processor memory-manager definitions
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1995 by Ralf Baechle
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_MMAN_H
+#define _XTENSA_MMAN_H
+
+/*
+ * Protections are chosen from these bits, OR'd together.  The
+ * implementation does not necessarily support PROT_EXEC or PROT_WRITE
+ * without PROT_READ.  The only guarantees are that no writing will be
+ * allowed without PROT_WRITE and no access will be allowed for PROT_NONE.
+ */
+
+#define PROT_NONE       0x0             /* page can not be accessed */
+#define PROT_READ       0x1             /* page can be read */
+#define PROT_WRITE      0x2             /* page can be written */
+#define PROT_EXEC       0x4             /* page can be executed */
+
+#define PROT_SEM        0x10            /* page may be used for atomic ops */
+#define PROT_GROWSDOWN  0x01000000      /* mprotect flag: extend change to start of growsdown vma */
+#define PROT_GROWSUP    0x02000000      /* mprotect flag: extend change to end fo growsup vma */
+
+/*
+ * Flags for mmap
+ */
+#define MAP_SHARED      0x001           /* Share changes */
+#define MAP_PRIVATE     0x002           /* Changes are private */
+#define MAP_TYPE        0x00f           /* Mask for type of mapping */
+#define MAP_FIXED       0x010           /* Interpret addr exactly */
+
+/* not used by linux, but here to make sure we don't clash with ABI defines */
+#define MAP_RENAME      0x020           /* Assign page to file */
+#define MAP_AUTOGROW    0x040           /* File may grow by writing */
+#define MAP_LOCAL       0x080           /* Copy on fork/sproc */
+#define MAP_AUTORSRV    0x100           /* Logical swap reserved on demand */
+
+/* These are linux-specific */
+#define MAP_NORESERVE   0x0400          /* don't check for reservations */
+#define MAP_ANONYMOUS   0x0800          /* don't use a file */
+#define MAP_GROWSDOWN   0x1000          /* stack-like segment */
+#define MAP_DENYWRITE   0x2000          /* ETXTBSY */
+#define MAP_EXECUTABLE  0x4000          /* mark it as an executable */
+#define MAP_LOCKED      0x8000          /* pages are locked */
+#define MAP_POPULATE    0x10000         /* populate (prefault) pagetables */
+#define MAP_NONBLOCK    0x20000         /* do not block on IO */
+
+/*
+ * Flags for msync
+ */
+#define MS_ASYNC        0x0001          /* sync memory asynchronously */
+#define MS_INVALIDATE   0x0002          /* invalidate mappings & caches */
+#define MS_SYNC         0x0004          /* synchronous memory sync */
+
+/*
+ * Flags for mlockall
+ */
+#define MCL_CURRENT     1               /* lock all current mappings */
+#define MCL_FUTURE      2               /* lock all future mappings */
+
+#define MADV_NORMAL     0x0             /* default page-in behavior */
+#define MADV_RANDOM     0x1             /* page-in minimum required */
+#define MADV_SEQUENTIAL 0x2             /* read-ahead aggressively */
+#define MADV_WILLNEED   0x3             /* pre-fault pages */
+#define MADV_DONTNEED   0x4             /* discard these pages */
+
+/* compatibility flags */
+#define MAP_ANON       MAP_ANONYMOUS
+#define MAP_FILE       0
+
+#endif /* _XTENSA_MMAN_H */
diff --git a/include/asm-xtensa/mmu.h b/include/asm-xtensa/mmu.h
new file mode 100644
index 000000000000..44c5bb04c55c
--- /dev/null
+++ b/include/asm-xtensa/mmu.h
@@ -0,0 +1,17 @@
+/*
+ * include/asm-xtensa/mmu.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_MMU_H
+#define _XTENSA_MMU_H
+
+/* Default "unsigned long" context */
+typedef unsigned long mm_context_t;
+
+#endif  /* _XTENSA_MMU_H */
diff --git a/include/asm-xtensa/mmu_context.h b/include/asm-xtensa/mmu_context.h
new file mode 100644
index 000000000000..1b0801548cd9
--- /dev/null
+++ b/include/asm-xtensa/mmu_context.h
@@ -0,0 +1,330 @@
+/*
+ * include/asm-xtensa/mmu_context.h
+ *
+ * Switch an MMU context.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_MMU_CONTEXT_H
+#define _XTENSA_MMU_CONTEXT_H
+
+#include <linux/config.h>
+#include <linux/stringify.h>
+
+#include <asm/pgtable.h>
+#include <asm/mmu_context.h>
+#include <asm/cacheflush.h>
+#include <asm/tlbflush.h>
+
+/*
+ * Linux was ported to Xtensa assuming all auto-refill ways in set 0
+ * had the same properties (a very likely assumption).  Multiple sets
+ * of auto-refill ways will still work properly, but not as optimally
+ * as the Xtensa designer may have assumed.
+ *
+ * We make this case a hard #error, killing the kernel build, to alert
+ * the developer to this condition (which is more likely an error).
+ * You super-duper clever developers can change it to a warning or
+ * remove it altogether if you think you know what you're doing.  :)
+ */
+
+#if (XCHAL_HAVE_TLBS != 1)
+# error "Linux must have an MMU!"
+#endif
+
+#if ((XCHAL_ITLB_ARF_WAYS == 0) || (XCHAL_DTLB_ARF_WAYS == 0))
+# error "MMU must have auto-refill ways"
+#endif
+
+#if ((XCHAL_ITLB_ARF_SETS != 1) || (XCHAL_DTLB_ARF_SETS != 1))
+# error Linux may not use all auto-refill ways as efficiently as you think
+#endif
+
+#if (XCHAL_MMU_MAX_PTE_PAGE_SIZE != XCHAL_MMU_MIN_PTE_PAGE_SIZE)
+# error Only one page size allowed!
+#endif
+
+extern unsigned long asid_cache;
+extern pgd_t *current_pgd;
+
+/*
+ * Define the number of entries per auto-refill way in set 0 of both I and D
+ * TLBs.  We deal only with set 0 here (an assumption further explained in
+ * assertions.h).  Also, define the total number of ARF entries in both TLBs.
+ */
+
+#define ITLB_ENTRIES_PER_ARF_WAY  (XCHAL_ITLB_SET(XCHAL_ITLB_ARF_SET0,ENTRIES))
+#define DTLB_ENTRIES_PER_ARF_WAY  (XCHAL_DTLB_SET(XCHAL_DTLB_ARF_SET0,ENTRIES))
+
+#define ITLB_ENTRIES                                                    \
+        (ITLB_ENTRIES_PER_ARF_WAY * (XCHAL_ITLB_SET(XCHAL_ITLB_ARF_SET0,WAYS)))
+#define DTLB_ENTRIES                                                    \
+        (DTLB_ENTRIES_PER_ARF_WAY * (XCHAL_DTLB_SET(XCHAL_DTLB_ARF_SET0,WAYS)))
+
+
+/*
+ * SMALLEST_NTLB_ENTRIES is the smaller of ITLB_ENTRIES and DTLB_ENTRIES.
+ * In practice, they are probably equal.  This macro simplifies function
+ * flush_tlb_range().
+ */
+
+#if (DTLB_ENTRIES < ITLB_ENTRIES)
+# define SMALLEST_NTLB_ENTRIES  DTLB_ENTRIES
+#else
+# define SMALLEST_NTLB_ENTRIES  ITLB_ENTRIES
+#endif
+
+
+/*
+ * asid_cache tracks only the ASID[USER_RING] field of the RASID special
+ * register, which is the current user-task asid allocation value.
+ * mm->context has the same meaning.  When it comes time to write the
+ * asid_cache or mm->context values to the RASID special register, we first
+ * shift the value left by 8, then insert the value.
+ * ASID[0] always contains the kernel's asid value, and we reserve three
+ * other asid values that we never assign to user tasks.
+ */
+
+#define ASID_INC        0x1
+#define ASID_MASK       ((1 << XCHAL_MMU_ASID_BITS) - 1)
+
+/*
+ * XCHAL_MMU_ASID_INVALID is a configurable Xtensa processor constant
+ * indicating invalid address space.  XCHAL_MMU_ASID_KERNEL is a configurable
+ * Xtensa processor constant indicating the kernel address space.  They can
+ * be arbitrary values.
+ *
+ * We identify three more unique, reserved ASID values to use in the unused
+ * ring positions.  No other user process will be assigned these reserved
+ * ASID values.
+ *
+ * For example, given that
+ *
+ *      XCHAL_MMU_ASID_INVALID == 0
+ *      XCHAL_MMU_ASID_KERNEL  == 1
+ *
+ * the following maze of #if statements would generate
+ *
+ *      ASID_RESERVED_1        == 2
+ *      ASID_RESERVED_2        == 3
+ *      ASID_RESERVED_3        == 4
+ *      ASID_FIRST_NONRESERVED == 5
+ */
+
+#if (XCHAL_MMU_ASID_INVALID != XCHAL_MMU_ASID_KERNEL + 1)
+# define ASID_RESERVED_1         ((XCHAL_MMU_ASID_KERNEL + 1) & ASID_MASK)
+#else
+# define ASID_RESERVED_1         ((XCHAL_MMU_ASID_KERNEL + 2) & ASID_MASK)
+#endif
+
+#if (XCHAL_MMU_ASID_INVALID != ASID_RESERVED_1 + 1)
+# define ASID_RESERVED_2         ((ASID_RESERVED_1 + 1) & ASID_MASK)
+#else
+# define ASID_RESERVED_2         ((ASID_RESERVED_1 + 2) & ASID_MASK)
+#endif
+
+#if (XCHAL_MMU_ASID_INVALID != ASID_RESERVED_2 + 1)
+# define ASID_RESERVED_3         ((ASID_RESERVED_2 + 1) & ASID_MASK)
+#else
+# define ASID_RESERVED_3         ((ASID_RESERVED_2 + 2) & ASID_MASK)
+#endif
+
+#if (XCHAL_MMU_ASID_INVALID != ASID_RESERVED_3 + 1)
+# define ASID_FIRST_NONRESERVED  ((ASID_RESERVED_3 + 1) & ASID_MASK)
+#else
+# define ASID_FIRST_NONRESERVED  ((ASID_RESERVED_3 + 2) & ASID_MASK)
+#endif
+
+#define ASID_ALL_RESERVED ( ((ASID_RESERVED_1) << 24) + \
+                            ((ASID_RESERVED_2) << 16) + \
+                            ((ASID_RESERVED_3) <<  8) + \
+                            ((XCHAL_MMU_ASID_KERNEL))   )
+
+
+/*
+ * NO_CONTEXT is the invalid ASID value that we don't ever assign to
+ * any user or kernel context.  NO_CONTEXT is a better mnemonic than
+ * XCHAL_MMU_ASID_INVALID, so we use it in code instead.
+ */
+
+#define NO_CONTEXT   XCHAL_MMU_ASID_INVALID
+
+#if (KERNEL_RING != 0)
+# error The KERNEL_RING really should be zero.
+#endif
+
+#if (USER_RING >= XCHAL_MMU_RINGS)
+# error USER_RING cannot be greater than the highest numbered ring.
+#endif
+
+#if (USER_RING == KERNEL_RING)
+# error The user and kernel rings really should not be equal.
+#endif
+
+#if (USER_RING == 1)
+#define ASID_INSERT(x) ( ((ASID_RESERVED_1)   << 24) + \
+                         ((ASID_RESERVED_2)   << 16) + \
+                         (((x) & (ASID_MASK)) <<  8) + \
+                         ((XCHAL_MMU_ASID_KERNEL))   )
+
+#elif (USER_RING == 2)
+#define ASID_INSERT(x) ( ((ASID_RESERVED_1)   << 24) + \
+                         (((x) & (ASID_MASK)) << 16) + \
+                         ((ASID_RESERVED_2)   <<  8) + \
+                         ((XCHAL_MMU_ASID_KERNEL))   )
+
+#elif (USER_RING == 3)
+#define ASID_INSERT(x) ( (((x) & (ASID_MASK)) << 24) + \
+                         ((ASID_RESERVED_1)   << 16) + \
+                         ((ASID_RESERVED_2)   <<  8) + \
+                         ((XCHAL_MMU_ASID_KERNEL))   )
+
+#else
+#error Goofy value for USER_RING
+
+#endif /* USER_RING == 1 */
+
+
+/*
+ *  All unused by hardware upper bits will be considered
+ *  as a software asid extension.
+ */
+
+#define ASID_VERSION_MASK  ((unsigned long)~(ASID_MASK|(ASID_MASK-1)))
+#define ASID_FIRST_VERSION                                              \
+        ((unsigned long)(~ASID_VERSION_MASK) + 1 + ASID_FIRST_NONRESERVED)
+
+extern inline void set_rasid_register (unsigned long val)
+{
+        __asm__ __volatile__ (" wsr %0, "__stringify(RASID)"\n\t"
+                              " isync\n" : : "a" (val));
+}
+
+extern inline unsigned long get_rasid_register (void)
+{
+        unsigned long tmp;
+        __asm__ __volatile__ (" rsr %0, "__stringify(RASID)"\n\t" : "=a" (tmp));
+        return tmp;
+}
+
+
+#if ((XCHAL_MMU_ASID_INVALID == 0) && (XCHAL_MMU_ASID_KERNEL == 1))
+
+extern inline void
+get_new_mmu_context(struct mm_struct *mm, unsigned long asid)
+{
+        extern void flush_tlb_all(void);
+        if (! ((asid += ASID_INC) & ASID_MASK) ) {
+                flush_tlb_all(); /* start new asid cycle */
+                if (!asid)      /* fix version if needed */
+                        asid = ASID_FIRST_VERSION - ASID_FIRST_NONRESERVED;
+                asid += ASID_FIRST_NONRESERVED;
+        }
+        mm->context = asid_cache = asid;
+}
+
+#else
+#warning ASID_{INVALID,KERNEL} values impose non-optimal get_new_mmu_context implementation
+
+/* XCHAL_MMU_ASID_INVALID == 0 and XCHAL_MMU_ASID_KERNEL ==1 are
+   really the best, but if you insist... */
+
+extern inline int validate_asid (unsigned long asid)
+{
+        switch (asid) {
+        case XCHAL_MMU_ASID_INVALID:
+        case XCHAL_MMU_ASID_KERNEL:
+        case ASID_RESERVED_1:
+        case ASID_RESERVED_2:
+        case ASID_RESERVED_3:
+                return 0; /* can't use these values as ASIDs */
+        }
+        return 1; /* valid */
+}
+
+extern inline void
+get_new_mmu_context(struct mm_struct *mm, unsigned long asid)
+{
+        extern void flush_tlb_all(void);
+        while (1) {
+                asid += ASID_INC;
+                if ( ! (asid & ASID_MASK) ) {
+                        flush_tlb_all(); /* start new asid cycle */
+                        if (!asid)      /* fix version if needed */
+                                asid = ASID_FIRST_VERSION - ASID_FIRST_NONRESERVED;
+                        asid += ASID_FIRST_NONRESERVED;
+                        break; /* no need to validate here */
+                }
+                if (validate_asid (asid & ASID_MASK))
+                        break;
+        }
+        mm->context = asid_cache = asid;
+}
+
+#endif
+
+
+/*
+ * Initialize the context related info for a new mm_struct
+ * instance.
+ */
+
+extern inline int
+init_new_context(struct task_struct *tsk, struct mm_struct *mm)
+{
+        mm->context = NO_CONTEXT;
+        return 0;
+}
+
+extern inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
+                             struct task_struct *tsk)
+{
+        unsigned long asid = asid_cache;
+
+        /* Check if our ASID is of an older version and thus invalid */
+
+        if ((next->context ^ asid) & ASID_VERSION_MASK)
+                get_new_mmu_context(next, asid);
+
+        set_rasid_register (ASID_INSERT(next->context));
+        invalidate_page_directory();
+}
+
+#define deactivate_mm(tsk, mm)  do { } while(0)
+
+/*
+ * Destroy context related info for an mm_struct that is about
+ * to be put to rest.
+ */
+extern inline void destroy_context(struct mm_struct *mm)
+{
+        /* Nothing to do. */
+}
+
+/*
+ * After we have set current->mm to a new value, this activates
+ * the context for the new mm so we see the new mappings.
+ */
+extern inline void
+activate_mm(struct mm_struct *prev, struct mm_struct *next)
+{
+        /* Unconditionally get a new ASID.  */
+
+        get_new_mmu_context(next, asid_cache);
+        set_rasid_register (ASID_INSERT(next->context));
+        invalidate_page_directory();
+}
+
+
+static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
+{
+        /* Nothing to do. */
+
+}
+
+#endif /* _XTENSA_MMU_CONTEXT_H */
diff --git a/include/asm-xtensa/module.h b/include/asm-xtensa/module.h
new file mode 100644
index 000000000000..ffb25bfdf6a1
--- /dev/null
+++ b/include/asm-xtensa/module.h
@@ -0,0 +1,25 @@
+/*
+ * include/asm-xtensa/module.h
+ *
+ * This file contains the module code specific to the Xtensa architecture.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_MODULE_H
+#define _XTENSA_MODULE_H
+
+struct mod_arch_specific
+{
+        /* Module support is not completely implemented. */
+};
+
+#define Elf_Shdr Elf32_Shdr
+#define Elf_Sym Elf32_Sym
+#define Elf_Ehdr Elf32_Ehdr
+
+#endif  /* _XTENSA_MODULE_H */
diff --git a/include/asm-xtensa/msgbuf.h b/include/asm-xtensa/msgbuf.h
new file mode 100644
index 000000000000..693c96755280
--- /dev/null
+++ b/include/asm-xtensa/msgbuf.h
@@ -0,0 +1,48 @@
+/*
+ * include/asm-xtensa/msgbuf.h
+ *
+ * The msqid64_ds structure for the Xtensa architecture.
+ * Note extra padding because this structure is passed back and forth
+ * between kernel and user space.
+ *
+ * Pad space is left for:
+ * - 64-bit time_t to solve y2038 problem
+ * - 2 miscellaneous 32-bit values
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file "COPYING" in the main directory of
+ * this archive for more details.
+ */
+
+#ifndef _XTENSA_MSGBUF_H
+#define _XTENSA_MSGBUF_H
+
+struct msqid64_ds {
+        struct ipc64_perm msg_perm;
+#ifdef __XTENSA_EB__
+        unsigned int    __unused1;
+        __kernel_time_t msg_stime;      /* last msgsnd time */
+        unsigned int    __unused2;
+        __kernel_time_t msg_rtime;      /* last msgrcv time */
+        unsigned int    __unused3;
+        __kernel_time_t msg_ctime;      /* last change time */
+#elif defined(__XTENSA_EL__)
+        __kernel_time_t msg_stime;      /* last msgsnd time */
+        unsigned int    __unused1;
+        __kernel_time_t msg_rtime;      /* last msgrcv time */
+        unsigned int    __unused2;
+        __kernel_time_t msg_ctime;      /* last change time */
+        unsigned int    __unused3;
+#else
+# error processor byte order undefined!
+#endif
+        unsigned long  msg_cbytes;      /* current number of bytes on queue */
+        unsigned long  msg_qnum;        /* number of messages in queue */
+        unsigned long  msg_qbytes;      /* max number of bytes on queue */
+        __kernel_pid_t msg_lspid;       /* pid of last msgsnd */
+        __kernel_pid_t msg_lrpid;       /* last receive pid */
+        unsigned long  __unused4;
+        unsigned long  __unused5;
+};
+
+#endif  /* _XTENSA_MSGBUF_H */
diff --git a/include/asm-xtensa/namei.h b/include/asm-xtensa/namei.h
new file mode 100644
index 000000000000..3fdff039d27d
--- /dev/null
+++ b/include/asm-xtensa/namei.h
@@ -0,0 +1,26 @@
+/*
+ * include/asm-xtensa/namei.h
+ *
+ * Included from linux/fs/namei.c
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_NAMEI_H
+#define _XTENSA_NAMEI_H
+
+#ifdef __KERNEL__
+
+/* This dummy routine maybe changed to something useful
+ * for /usr/gnemul/ emulation stuff.
+ * Look at asm-sparc/namei.h for details.
+ */
+
+#define __emul_prefix() NULL
+
+#endif  /* __KERNEL__ */
+#endif  /* _XTENSA_NAMEI_H */
diff --git a/include/asm-xtensa/page.h b/include/asm-xtensa/page.h
new file mode 100644
index 000000000000..b495e5b5a942
--- /dev/null
+++ b/include/asm-xtensa/page.h
@@ -0,0 +1,133 @@
+/*
+ * linux/include/asm-xtensa/page.h
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version2 as
+ * published by the Free Software Foundation.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_PAGE_H
+#define _XTENSA_PAGE_H
+
+#ifdef __KERNEL__
+
+#include <asm/processor.h>
+#include <linux/config.h>
+
+/*
+ * PAGE_SHIFT determines the page size
+ * PAGE_ALIGN(x) aligns the pointer to the (next) page boundary
+ */
+
+#define PAGE_SHIFT              XCHAL_MMU_MIN_PTE_PAGE_SIZE
+#define PAGE_SIZE               (1 << PAGE_SHIFT)
+#define PAGE_MASK               (~(PAGE_SIZE-1))
+#define PAGE_ALIGN(addr)        (((addr)+PAGE_SIZE - 1) & PAGE_MASK)
+
+#define DCACHE_WAY_SIZE         (XCHAL_DCACHE_SIZE / XCHAL_DCACHE_WAYS)
+#define PAGE_OFFSET             XCHAL_KSEG_CACHED_VADDR
+
+#ifdef __ASSEMBLY__
+
+#define __pgprot(x)     (x)
+
+#else
+
+/*
+ * These are used to make use of C type-checking..
+ */
+
+typedef struct { unsigned long pte; } pte_t;            /* page table entry */
+typedef struct { unsigned long pgd; } pgd_t;            /* PGD table entry */
+typedef struct { unsigned long pgprot; } pgprot_t;
+
+#define pte_val(x)      ((x).pte)
+#define pgd_val(x)      ((x).pgd)
+#define pgprot_val(x)   ((x).pgprot)
+
+#define __pte(x)        ((pte_t) { (x) } )
+#define __pgd(x)        ((pgd_t) { (x) } )
+#define __pgprot(x)     ((pgprot_t) { (x) } )
+
+/*
+ * Pure 2^n version of get_order
+ */
+
+extern __inline__ int get_order(unsigned long size)
+{
+        int order;
+#ifndef XCHAL_HAVE_NSU
+        unsigned long x1, x2, x4, x8, x16;
+
+        size = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
+        x1  = size & 0xAAAAAAAA;
+        x2  = size & 0xCCCCCCCC;
+        x4  = size & 0xF0F0F0F0;
+        x8  = size & 0xFF00FF00;
+        x16 = size & 0xFFFF0000;
+        order = x2 ? 2 : 0;
+        order += (x16 != 0) * 16;
+        order += (x8 != 0) * 8;
+        order += (x4 != 0) * 4;
+        order += (x1 != 0);
+
+        return order;
+#else
+        size = (size - 1) >> PAGE_SHIFT;
+        asm ("nsau %0, %1" : "=r" (order) : "r" (size));
+        return 32 - order;
+#endif
+}
+
+
+struct page;
+extern void clear_page(void *page);
+extern void copy_page(void *to, void *from);
+
+/*
+ * If we have cache aliasing and writeback caches, we might have to do
+ * some extra work
+ */
+
+#if (DCACHE_WAY_SIZE > PAGE_SIZE)
+void clear_user_page(void *addr, unsigned long vaddr, struct page* page);
+void copy_user_page(void *to,void* from,unsigned long vaddr,struct page* page);
+#else
+# define clear_user_page(page,vaddr,pg)         clear_page(page)
+# define copy_user_page(to, from, vaddr, pg)    copy_page(to, from)
+#endif
+
+/*
+ * This handles the memory map.  We handle pages at
+ * XCHAL_KSEG_CACHED_VADDR for kernels with 32 bit address space.
+ * These macros are for conversion of kernel address, not user
+ * addresses.
+ */
+
+#define __pa(x)                 ((unsigned long) (x) - PAGE_OFFSET)
+#define __va(x)                 ((void *)((unsigned long) (x) + PAGE_OFFSET))
+#define pfn_valid(pfn)          ((unsigned long)pfn < max_mapnr)
+#ifndef CONFIG_DISCONTIGMEM
+# define pfn_to_page(pfn)       (mem_map + (pfn))
+# define page_to_pfn(page)      ((unsigned long)((page) - mem_map))
+#else
+# error CONFIG_DISCONTIGMEM not supported
+#endif
+
+#define virt_to_page(kaddr)     pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
+#define page_to_virt(page)      __va(page_to_pfn(page) << PAGE_SHIFT)
+#define virt_addr_valid(kaddr)  pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
+#define page_to_phys(page)      (page_to_pfn(page) << PAGE_SHIFT)
+
+#define WANT_PAGE_VIRTUAL
+
+
+#endif /* __ASSEMBLY__ */
+
+#define VM_DATA_DEFAULT_FLAGS   (VM_READ | VM_WRITE | VM_EXEC | \
+                                 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
+
+#endif /* __KERNEL__ */
+#endif /* _XTENSA_PAGE_H */
diff --git a/include/asm-xtensa/page.h.n b/include/asm-xtensa/page.h.n
new file mode 100644
index 000000000000..546cc6624f24
--- /dev/null
+++ b/include/asm-xtensa/page.h.n
@@ -0,0 +1,135 @@
+/*
+ * linux/include/asm-xtensa/page.h
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version2 as
+ * published by the Free Software Foundation.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_PAGE_H
+#define _XTENSA_PAGE_H
+
+#ifdef __KERNEL__
+
+#include <asm/processor.h>
+#include <linux/config.h>
+
+/*
+ * PAGE_SHIFT determines the page size
+ * PAGE_ALIGN(x) aligns the pointer to the (next) page boundary
+ */
+#define PAGE_SHIFT              XCHAL_MMU_MIN_PTE_PAGE_SIZE
+#define PAGE_SIZE               (1 << PAGE_SHIFT)
+#define PAGE_MASK               (~(PAGE_SIZE-1))
+#define PAGE_ALIGN(addr)        (((addr)+PAGE_SIZE - 1) & PAGE_MASK)
+
+#define DCACHE_WAY_SIZE         (XCHAL_DCACHE_SIZE / XCHAL_DCACHE_WAYS)
+#define PAGE_OFFSET             XCHAL_KSEG_CACHED_VADDR
+
+#ifdef __ASSEMBLY__
+
+#define __pgprot(x)     (x)
+
+#else
+
+
+/*
+ * These are used to make use of C type-checking..
+ */
+typedef struct { unsigned long pte; } pte_t;            /* page table entry */
+typedef struct { unsigned long pmd; } pmd_t;            /* PMD table entry */
+typedef struct { unsigned long pgd; } pgd_t;            /* PGD table entry */
+typedef struct { unsigned long pgprot; } pgprot_t;
+
+#define pte_val(x)      ((x).pte)
+#define pmd_val(x)      ((x).pmd)
+#define pgd_val(x)      ((x).pgd)
+#define pgprot_val(x)   ((x).pgprot)
+
+#define __pte(x)        ((pte_t) { (x) } )
+#define __pmd(x)        ((pmd_t) { (x) } )
+#define __pgd(x)        ((pgd_t) { (x) } )
+#define __pgprot(x)     ((pgprot_t) { (x) } )
+
+/*
+ * Pure 2^n version of get_order
+ */
+extern __inline__ int get_order(unsigned long size)
+{
+        int order;
+#ifndef XCHAL_HAVE_NSU
+        unsigned long x1, x2, x4, x8, x16;
+
+        size = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
+        x1  = size & 0xAAAAAAAA;
+        x2  = size & 0xCCCCCCCC;
+        x4  = size & 0xF0F0F0F0;
+        x8  = size & 0xFF00FF00;
+        x16 = size & 0xFFFF0000;
+        order = x2 ? 2 : 0;
+        order += (x16 != 0) * 16;
+        order += (x8 != 0) * 8;
+        order += (x4 != 0) * 4;
+        order += (x1 != 0);
+
+        return order;
+#else
+        size = (size - 1) >> PAGE_SHIFT;
+        asm ("nsau %0, %1" : "=r" (order) : "r" (size));
+        return 32 - order;
+#endif
+}
+
+
+struct page;
+extern void clear_page(void *page);
+extern void copy_page(void *to, void *from);
+
+/*
+ * If we have cache aliasing and writeback caches, we might have to do
+ * some extra work
+ */
+
+#if (DCACHE_WAY_SIZE > PAGE_SIZE) && XCHAL_DCACHE_IS_WRITEBACK
+void clear_user_page(void *addr, unsigned long vaddr, struct page* page);
+void copy_user_page(void *to, void* from, unsigned long vaddr, struct page* page);
+#else
+# define clear_user_page(page,vaddr,pg)         clear_page(page)
+# define copy_user_page(to, from, vaddr, pg)    copy_page(to, from)
+#endif
+
+
+/*
+ * This handles the memory map.  We handle pages at
+ * XCHAL_KSEG_CACHED_VADDR for kernels with 32 bit address space.
+ * These macros are for conversion of kernel address, not user
+ * addresses.
+ */
+
+#define __pa(x)                 ((unsigned long) (x) - PAGE_OFFSET)
+#define __va(x)                 ((void *)((unsigned long) (x) + PAGE_OFFSET))
+#define pfn_valid(pfn)          ((unsigned long)pfn < max_mapnr)
+#ifndef CONFIG_DISCONTIGMEM
+# define pfn_to_page(pfn)       (mem_map + (pfn))
+# define page_to_pfn(page)      ((unsigned long)((page) - mem_map))
+#else
+# error CONFIG_DISCONTIGMEM not supported
+#endif
+
+#define virt_to_page(kaddr)     pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
+#define page_to_virt(page)      __va(page_to_pfn(page) << PAGE_SHIFT)
+#define virt_addr_valid(kaddr)  pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
+#define page_to_phys(page)      (page_to_pfn(page) << PAGE_SHIFT)
+
+#define WANT_PAGE_VIRTUAL
+
+
+#endif /* __ASSEMBLY__ */
+
+#define VM_DATA_DEFAULT_FLAGS   (VM_READ | VM_WRITE | VM_EXEC | \
+                                 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
+
+#endif /* __KERNEL__ */
+#endif /* _XTENSA_PAGE_H */
diff --git a/include/asm-xtensa/param.h b/include/asm-xtensa/param.h
new file mode 100644
index 000000000000..c0eec8260b0e
--- /dev/null
+++ b/include/asm-xtensa/param.h
@@ -0,0 +1,34 @@
+/*
+ * include/asm-xtensa/param.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_PARAM_H
+#define _XTENSA_PARAM_H
+
+#include <xtensa/config/core.h>
+
+#ifdef __KERNEL__
+# define HZ             100             /* internal timer frequency */
+# define USER_HZ        100             /* for user interfaces in "ticks" */
+# define CLOCKS_PER_SEC (USER_HZ)       /* frequnzy at which times() counts */
+#endif
+
+#define EXEC_PAGESIZE   (1 << XCHAL_MMU_MIN_PTE_PAGE_SIZE)
+
+#ifndef NGROUPS
+#define NGROUPS         32
+#endif
+
+#ifndef NOGROUP
+#define NOGROUP         (-1)
+#endif
+
+#define MAXHOSTNAMELEN  64      /* max length of hostname */
+
+#endif /* _XTENSA_PARAM_H */
diff --git a/include/asm-xtensa/pci-bridge.h b/include/asm-xtensa/pci-bridge.h
new file mode 100644
index 000000000000..00fcbd7c534a
--- /dev/null
+++ b/include/asm-xtensa/pci-bridge.h
@@ -0,0 +1,88 @@
+/*
+ * include/asm-xtensa/pci-bridge.h
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file "COPYING" in the main directory of
+ * this archive for more details.
+ *
+ * Copyright (C) 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_PCI_BRIDGE_H
+#define _XTENSA_PCI_BRIDGE_H
+
+#ifdef __KERNEL__
+
+struct device_node;
+struct pci_controller;
+
+/*
+ * pciauto_bus_scan() enumerates the pci space.
+ */
+
+extern int pciauto_bus_scan(struct pci_controller *, int);
+
+struct pci_space {
+        unsigned long start;
+        unsigned long end;
+        unsigned long base;
+};
+
+/*
+ * Structure of a PCI controller (host bridge)
+ */
+
+struct pci_controller {
+        int index;                      /* used for pci_controller_num */
+        struct pci_controller *next;
+        struct pci_bus *bus;
+        void *arch_data;
+
+        int first_busno;
+        int last_busno;
+
+        struct pci_ops *ops;
+        volatile unsigned int *cfg_addr;
+        volatile unsigned char *cfg_data;
+
+        /* Currently, we limit ourselves to 1 IO range and 3 mem
+         * ranges since the common pci_bus structure can't handle more
+         */
+        struct resource io_resource;
+        struct resource mem_resources[3];
+        int mem_resource_count;
+
+        /* Host bridge I/O and Memory space
+         * Used for BAR placement algorithms
+         */
+        struct pci_space io_space;
+        struct pci_space mem_space;
+
+        /* Return the interrupt number fo a device. */
+        int (*map_irq)(struct pci_dev*, u8, u8);
+
+};
+
+static inline void pcibios_init_resource(struct resource *res,
+                unsigned long start, unsigned long end, int flags, char *name)
+{
+        res->start = start;
+        res->end = end;
+        res->flags = flags;
+        res->name = name;
+        res->parent = NULL;
+        res->sibling = NULL;
+        res->child = NULL;
+}
+
+
+/* These are used for config access before all the PCI probing has been done. */
+int early_read_config_byte(struct pci_controller*, int, int, int, u8*);
+int early_read_config_word(struct pci_controller*, int, int, int, u16*);
+int early_read_config_dword(struct pci_controller*, int, int, int, u32*);
+int early_write_config_byte(struct pci_controller*, int, int, int, u8);
+int early_write_config_word(struct pci_controller*, int, int, int, u16);
+int early_write_config_dword(struct pci_controller*, int, int, int, u32);
+
+#endif  /* __KERNEL__ */
+#endif  /* _XTENSA_PCI_BRIDGE_H */
diff --git a/include/asm-xtensa/pci.h b/include/asm-xtensa/pci.h
new file mode 100644
index 000000000000..6817742301c2
--- /dev/null
+++ b/include/asm-xtensa/pci.h
@@ -0,0 +1,89 @@
+/*
+ * linux/include/asm-xtensa/pci.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_PCI_H
+#define _XTENSA_PCI_H
+
+#ifdef __KERNEL__
+
+/* Can be used to override the logic in pci_scan_bus for skipping
+ * already-configured bus numbers - to be used for buggy BIOSes
+ * or architectures with incomplete PCI setup by the loader
+ */
+
+#define pcibios_assign_all_busses()     0
+
+extern struct pci_controller* pcibios_alloc_controller(void);
+
+extern inline void pcibios_set_master(struct pci_dev *dev)
+{
+        /* No special bus mastering setup handling */
+}
+
+extern inline void pcibios_penalize_isa_irq(int irq)
+{
+        /* We don't do dynamic PCI IRQ allocation */
+}
+
+/* Assume some values. (We should revise them, if necessary) */
+
+#define PCIBIOS_MIN_IO          0x2000
+#define PCIBIOS_MIN_MEM         0x10000000
+
+/* Dynamic DMA mapping stuff.
+ * Xtensa has everything mapped statically like x86.
+ */
+
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <asm/scatterlist.h>
+#include <linux/string.h>
+#include <asm/io.h>
+
+struct pci_dev;
+
+/* The PCI address space does equal the physical memory address space.
+ * The networking and block device layers use this boolean for bounce buffer
+ * decisions.
+ */
+
+#define PCI_DMA_BUS_IS_PHYS     (1)
+
+/* pci_unmap_{page,single} is a no-op, so */
+#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)
+#define DECLARE_PCI_UNMAP_LEN(LEN_NAME)
+#define pci_unmap_addr(PTR, ADDR_NAME)          (0)
+#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0)
+#define pci_ubnmap_len(PTR, LEN_NAME)           (0)
+#define pci_unmap_len_set(PTR, LEN_NAME, VAL)   do { } while (0)
+
+/* We cannot access memory above 4GB */
+#define pci_dac_dma_supported(pci_dev, mask)    (0)
+
+/* Map a range of PCI memory or I/O space for a device into user space */
+int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma,
+                        enum pci_mmap_state mmap_state, int write_combine);
+
+/* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */
+#define HAVE_PCI_MMAP   1
+
+static inline void pcibios_add_platform_entries(struct pci_dev *dev)
+{
+}
+
+#endif /* __KERNEL__ */
+
+/* Implement the pci_ DMA API in terms of the generic device dma_ one */
+#include <asm-generic/pci-dma-compat.h>
+
+/* Generic PCI */
+#include <asm-generic/pci.h>
+
+#endif  /* _XTENSA_PCI_H */
diff --git a/include/asm-xtensa/percpu.h b/include/asm-xtensa/percpu.h
new file mode 100644
index 000000000000..6d2bc2ada9d1
--- /dev/null
+++ b/include/asm-xtensa/percpu.h
@@ -0,0 +1,16 @@
+/*
+ * linux/include/asm-xtensa/percpu.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_PERCPU__
+#define _XTENSA_PERCPU__
+
+#include <asm-generic/percpu.h>
+
+#endif /* _XTENSA_PERCPU__ */
diff --git a/include/asm-xtensa/pgalloc.h b/include/asm-xtensa/pgalloc.h
new file mode 100644
index 000000000000..734a8d060395
--- /dev/null
+++ b/include/asm-xtensa/pgalloc.h
@@ -0,0 +1,116 @@
+/*
+ * linux/include/asm-xtensa/pgalloc.h
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Copyright (C) 2001-2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_PGALLOC_H
+#define _XTENSA_PGALLOC_H
+
+#ifdef __KERNEL__
+
+#include <linux/config.h>
+#include <linux/threads.h>
+#include <linux/highmem.h>
+#include <asm/processor.h>
+#include <asm/cacheflush.h>
+
+
+/* Cache aliasing:
+ *
+ * If the cache size for one way is greater than the page size, we have to
+ * deal with cache aliasing. The cache index is wider than the page size:
+ *
+ *      |cache |
+ * |pgnum |page|        virtual address
+ * |xxxxxX|zzzz|
+ * |      |    |
+ *   \  / |    |
+ *  trans.|    |
+ *   /  \ |    |
+ * |yyyyyY|zzzz|        physical address
+ *
+ * When the page number is translated to the physical page address, the lowest
+ * bit(s) (X) that are also part of the cache index are also translated (Y).
+ * If this translation changes this bit (X), the cache index is also afected,
+ * thus resulting in a different cache line than before.
+ * The kernel does not provide a mechanism to ensure that the page color
+ * (represented by this bit) remains the same when allocated or when pages
+ * are remapped. When user pages are mapped into kernel space, the color of
+ * the page might also change.
+ *
+ * We use the address space VMALLOC_END ... VMALLOC_END + DCACHE_WAY_SIZE * 2
+ * to temporarily map a patch so we can match the color.
+ */
+
+#if (DCACHE_WAY_SIZE > PAGE_SIZE)
+# define PAGE_COLOR_MASK        (PAGE_MASK & (DCACHE_WAY_SIZE-1))
+# define PAGE_COLOR(a)          \
+        (((unsigned long)(a)&PAGE_COLOR_MASK) >> PAGE_SHIFT)
+# define PAGE_COLOR_EQ(a,b)     \
+        ((((unsigned long)(a) ^ (unsigned long)(b)) & PAGE_COLOR_MASK) == 0)
+# define PAGE_COLOR_MAP0(v)     \
+        (VMALLOC_END + ((unsigned long)(v) & PAGE_COLOR_MASK))
+# define PAGE_COLOR_MAP1(v)     \
+        (VMALLOC_END + ((unsigned long)(v) & PAGE_COLOR_MASK) + DCACHE_WAY_SIZE)
+#endif
+
+/*
+ * Allocating and freeing a pmd is trivial: the 1-entry pmd is
+ * inside the pgd, so has no extra memory associated with it.
+ */
+
+#define pgd_free(pgd)   free_page((unsigned long)(pgd))
+
+#if (DCACHE_WAY_SIZE > PAGE_SIZE) && XCHAL_DCACHE_IS_WRITEBACK
+
+static inline void
+pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmdp, pte_t *pte)
+{
+        pmd_val(*(pmdp)) = (unsigned long)(pte);
+        __asm__ __volatile__ ("memw; dhwb %0, 0; dsync" :: "a" (pmdp));
+}
+
+static inline void
+pmd_populate(struct mm_struct *mm, pmd_t *pmdp, struct page *page)
+{
+        pmd_val(*(pmdp)) = (unsigned long)page_to_virt(page);
+        __asm__ __volatile__ ("memw; dhwb %0, 0; dsync" :: "a" (pmdp));
+}
+
+
+
+#else
+
+# define pmd_populate_kernel(mm, pmdp, pte)                                  \
+        (pmd_val(*(pmdp)) = (unsigned long)(pte))
+# define pmd_populate(mm, pmdp, page)                                        \
+        (pmd_val(*(pmdp)) = (unsigned long)page_to_virt(page))
+
+#endif
+
+static inline pgd_t*
+pgd_alloc(struct mm_struct *mm)
+{
+        pgd_t *pgd;
+
+        pgd = (pgd_t *)__get_free_pages(GFP_KERNEL|__GFP_ZERO, PGD_ORDER);
+
+        if (likely(pgd != NULL))
+                __flush_dcache_page((unsigned long)pgd);
+
+        return pgd;
+}
+
+extern pte_t* pte_alloc_one_kernel(struct mm_struct* mm, unsigned long addr);
+extern struct page* pte_alloc_one(struct mm_struct* mm, unsigned long addr);
+
+#define pte_free_kernel(pte) free_page((unsigned long)pte)
+#define pte_free(pte) __free_page(pte)
+
+#endif /* __KERNEL__ */
+#endif /* _XTENSA_PGALLOC_H */
diff --git a/include/asm-xtensa/pgtable.h b/include/asm-xtensa/pgtable.h
new file mode 100644
index 000000000000..0bb6416ae266
--- /dev/null
+++ b/include/asm-xtensa/pgtable.h
@@ -0,0 +1,468 @@
+/*
+ * linux/include/asm-xtensa/page.h
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version2 as
+ * published by the Free Software Foundation.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_PGTABLE_H
+#define _XTENSA_PGTABLE_H
+
+#include <asm-generic/pgtable-nopmd.h>
+#include <asm/page.h>
+
+/* Assertions. */
+
+#ifdef CONFIG_MMU
+
+
+#if (XCHAL_MMU_RINGS < 2)
+# error Linux build assumes at least 2 ring levels.
+#endif
+
+#if (XCHAL_MMU_CA_BITS != 4)
+# error We assume exactly four bits for CA.
+#endif
+
+#if (XCHAL_MMU_SR_BITS != 0)
+# error We have no room for SR bits.
+#endif
+
+/*
+ * Use the first min-wired way for mapping page-table pages.
+ * Page coloring requires a second min-wired way.
+ */
+
+#if (XCHAL_DTLB_MINWIRED_SETS == 0)
+# error Need a min-wired way for mapping page-table pages
+#endif
+
+#define DTLB_WAY_PGTABLE XCHAL_DTLB_SET(XCHAL_DTLB_MINWIRED_SET0, WAY)
+
+#if (DCACHE_WAY_SIZE > PAGE_SIZE) && XCHAL_DCACHE_IS_WRITEBACK
+# if XCHAL_DTLB_SET(XCHAL_DTLB_MINWIRED_SET0, WAYS) >= 2
+#  define DTLB_WAY_DCACHE_ALIAS0 (DTLB_WAY_PGTABLE + 1)
+#  define DTLB_WAY_DCACHE_ALIAS1 (DTLB_WAY_PGTABLE + 2)
+# else
+#  error Page coloring requires its own wired dtlb way!
+# endif
+#endif
+
+#endif /* CONFIG_MMU */
+
+/*
+ * We only use two ring levels, user and kernel space.
+ */
+
+#define USER_RING               1       /* user ring level */
+#define KERNEL_RING             0       /* kernel ring level */
+
+/*
+ * The Xtensa architecture port of Linux has a two-level page table system,
+ * i.e. the logical three-level Linux page table layout are folded.
+ * Each task has the following memory page tables:
+ *
+ *   PGD table (page directory), ie. 3rd-level page table:
+ *      One page (4 kB) of 1024 (PTRS_PER_PGD) pointers to PTE tables
+ *      (Architectures that don't have the PMD folded point to the PMD tables)
+ *
+ *      The pointer to the PGD table for a given task can be retrieved from
+ *      the task structure (struct task_struct*) t, e.g. current():
+ *        (t->mm ? t->mm : t->active_mm)->pgd
+ *
+ *   PMD tables (page middle-directory), ie. 2nd-level page tables:
+ *      Absent for the Xtensa architecture (folded, PTRS_PER_PMD == 1).
+ *
+ *   PTE tables (page table entry), ie. 1st-level page tables:
+ *      One page (4 kB) of 1024 (PTRS_PER_PTE) PTEs with a special PTE
+ *      invalid_pte_table for absent mappings.
+ *
+ * The individual pages are 4 kB big with special pages for the empty_zero_page.
+ */
+#define PGDIR_SHIFT     22
+#define PGDIR_SIZE      (1UL << PGDIR_SHIFT)
+#define PGDIR_MASK      (~(PGDIR_SIZE-1))
+
+/*
+ * Entries per page directory level: we use two-level, so
+ * we don't really have any PMD directory physically.
+ */
+#define PTRS_PER_PTE            1024
+#define PTRS_PER_PTE_SHIFT      10
+#define PTRS_PER_PMD            1
+#define PTRS_PER_PGD            1024
+#define PGD_ORDER               0
+#define PMD_ORDER               0
+#define USER_PTRS_PER_PGD       (TASK_SIZE/PGDIR_SIZE)
+#define FIRST_USER_ADDRESS      XCHAL_SEG_MAPPABLE_VADDR
+#define FIRST_USER_PGD_NR       (FIRST_USER_ADDRESS >> PGDIR_SHIFT)
+
+/* virtual memory area. We keep a distance to other memory regions to be
+ * on the safe side. We also use this area for cache aliasing.
+ */
+
+// FIXME: virtual memory area must be configuration-dependent
+
+#define VMALLOC_START           0xC0000000
+#define VMALLOC_END             0xC7FF0000
+
+/* Xtensa Linux config PTE layout (when present):
+ *      31-12:  PPN
+ *      11-6:   Software
+ *      5-4:    RING
+ *      3-0:    CA
+ *
+ * Similar to the Alpha and MIPS ports, we need to keep track of the ref
+ * and mod bits in software.  We have a software "you can read
+ * from this page" bit, and a hardware one which actually lets the
+ * process read from the page.  On the same token we have a software
+ * writable bit and the real hardware one which actually lets the
+ * process write to the page.
+ *
+ * See further below for PTE layout for swapped-out pages.
+ */
+
+#define _PAGE_VALID             (1<<0)  /* hardware: page is accessible */
+#define _PAGE_WRENABLE          (1<<1)  /* hardware: page is writable */
+
+/* None of these cache modes include MP coherency:  */
+#define _PAGE_NO_CACHE          (0<<2)  /* bypass, non-speculative */
+#if XCHAL_DCACHE_IS_WRITEBACK
+# define _PAGE_WRITEBACK        (1<<2)  /* write back */
+# define _PAGE_WRITETHRU        (2<<2)  /* write through */
+#else
+# define _PAGE_WRITEBACK        (1<<2)  /* assume write through */
+# define _PAGE_WRITETHRU        (1<<2)
+#endif
+#define _PAGE_NOALLOC           (3<<2)  /* don't allocate cache,if not cached */
+#define _CACHE_MASK             (3<<2)
+
+#define _PAGE_USER              (1<<4)  /* user access (ring=1) */
+#define _PAGE_KERNEL            (0<<4)  /* kernel access (ring=0) */
+
+/* Software */
+#define _PAGE_RW                (1<<6)  /* software: page writable */
+#define _PAGE_DIRTY             (1<<7)  /* software: page dirty */
+#define _PAGE_ACCESSED          (1<<8)  /* software: page accessed (read) */
+#define _PAGE_FILE              (1<<9)  /* nonlinear file mapping*/
+
+#define _PAGE_CHG_MASK  (PAGE_MASK | _PAGE_ACCESSED | _CACHE_MASK | _PAGE_DIRTY)
+#define _PAGE_PRESENT   ( _PAGE_VALID | _PAGE_WRITEBACK | _PAGE_ACCESSED)
+
+#ifdef CONFIG_MMU
+
+# define PAGE_NONE      __pgprot(_PAGE_PRESENT)
+# define PAGE_SHARED    __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_RW)
+# define PAGE_COPY      __pgprot(_PAGE_PRESENT | _PAGE_USER)
+# define PAGE_READONLY  __pgprot(_PAGE_PRESENT | _PAGE_USER)
+# define PAGE_KERNEL    __pgprot(_PAGE_PRESENT | _PAGE_KERNEL | _PAGE_WRENABLE)
+# define PAGE_INVALID   __pgprot(_PAGE_USER)
+
+# if (DCACHE_WAY_SIZE > PAGE_SIZE)
+#  define PAGE_DIRECTORY  __pgprot(_PAGE_VALID | _PAGE_ACCESSED | _PAGE_KERNEL)
+# else
+#  define PAGE_DIRECTORY  __pgprot(_PAGE_PRESENT | _PAGE_KERNEL)
+# endif
+
+#else /* no mmu */
+
+# define PAGE_NONE       __pgprot(0)
+# define PAGE_SHARED     __pgprot(0)
+# define PAGE_COPY       __pgprot(0)
+# define PAGE_READONLY   __pgprot(0)
+# define PAGE_KERNEL     __pgprot(0)
+
+#endif
+
+/*
+ * On certain configurations of Xtensa MMUs (eg. the initial Linux config),
+ * the MMU can't do page protection for execute, and considers that the same as
+ * read.  Also, write permissions may imply read permissions.
+ * What follows is the closest we can get by reasonable means..
+ * See linux/mm/mmap.c for protection_map[] array that uses these definitions.
+ */
+#define __P000  PAGE_NONE       /* private --- */
+#define __P001  PAGE_READONLY   /* private --r */
+#define __P010  PAGE_COPY       /* private -w- */
+#define __P011  PAGE_COPY       /* private -wr */
+#define __P100  PAGE_READONLY   /* private x-- */
+#define __P101  PAGE_READONLY   /* private x-r */
+#define __P110  PAGE_COPY       /* private xw- */
+#define __P111  PAGE_COPY       /* private xwr */
+
+#define __S000  PAGE_NONE       /* shared  --- */
+#define __S001  PAGE_READONLY   /* shared  --r */
+#define __S010  PAGE_SHARED     /* shared  -w- */
+#define __S011  PAGE_SHARED     /* shared  -wr */
+#define __S100  PAGE_READONLY   /* shared  x-- */
+#define __S101  PAGE_READONLY   /* shared  x-r */
+#define __S110  PAGE_SHARED     /* shared  xw- */
+#define __S111  PAGE_SHARED     /* shared  xwr */
+
+#ifndef __ASSEMBLY__
+
+#define pte_ERROR(e) \
+        printk("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, pte_val(e))
+#define pgd_ERROR(e) \
+        printk("%s:%d: bad pgd entry %08lx.\n", __FILE__, __LINE__, pgd_val(e))
+
+extern unsigned long empty_zero_page[1024];
+
+#define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page))
+
+extern pgd_t swapper_pg_dir[PAGE_SIZE/sizeof(pgd_t)];
+
+/*
+ * The pmd contains the kernel virtual address of the pte page.
+ */
+#define pmd_page_kernel(pmd) ((unsigned long)(pmd_val(pmd) & PAGE_MASK))
+#define pmd_page(pmd) virt_to_page(pmd_val(pmd))
+
+/*
+ * The following only work if pte_present() is true.
+ */
+#define pte_none(pte)    (!(pte_val(pte) ^ _PAGE_USER))
+#define pte_present(pte) (pte_val(pte) & _PAGE_VALID)
+#define pte_clear(mm,addr,ptep)                                         \
+        do { update_pte(ptep, __pte(_PAGE_USER)); } while(0)
+
+#define pmd_none(pmd)    (!pmd_val(pmd))
+#define pmd_present(pmd) (pmd_val(pmd) & PAGE_MASK)
+#define pmd_clear(pmdp)  do { set_pmd(pmdp, __pmd(0)); } while (0)
+#define pmd_bad(pmd)     (pmd_val(pmd) & ~PAGE_MASK)
+
+/* Note: We use the _PAGE_USER bit to indicate write-protect kernel memory */
+
+static inline int pte_read(pte_t pte)  { return pte_val(pte) & _PAGE_USER; }
+static inline int pte_write(pte_t pte) { return pte_val(pte) & _PAGE_RW; }
+static inline int pte_dirty(pte_t pte) { return pte_val(pte) & _PAGE_DIRTY; }
+static inline int pte_young(pte_t pte) { return pte_val(pte) & _PAGE_ACCESSED; }
+static inline int pte_file(pte_t pte)  { return pte_val(pte) & _PAGE_FILE; }
+static inline pte_t pte_wrprotect(pte_t pte)    { pte_val(pte) &= ~(_PAGE_RW | _PAGE_WRENABLE); return pte; }
+static inline pte_t pte_rdprotect(pte_t pte)    { pte_val(pte) &= ~_PAGE_USER; return pte; }
+static inline pte_t pte_mkclean(pte_t pte)      { pte_val(pte) &= ~_PAGE_DIRTY; return pte; }
+static inline pte_t pte_mkold(pte_t pte)        { pte_val(pte) &= ~_PAGE_ACCESSED; return pte; }
+static inline pte_t pte_mkread(pte_t pte)       { pte_val(pte) |= _PAGE_USER; return pte; }
+static inline pte_t pte_mkdirty(pte_t pte)      { pte_val(pte) |= _PAGE_DIRTY; return pte; }
+static inline pte_t pte_mkyoung(pte_t pte)      { pte_val(pte) |= _PAGE_ACCESSED; return pte; }
+static inline pte_t pte_mkwrite(pte_t pte)      { pte_val(pte) |= _PAGE_RW; return pte; }
+
+/*
+ * Conversion functions: convert a page and protection to a page entry,
+ * and a page entry and page directory to the page they refer to.
+ */
+#define pte_pfn(pte)            (pte_val(pte) >> PAGE_SHIFT)
+#define pte_same(a,b)           (pte_val(a) == pte_val(b))
+#define pte_page(x)             pfn_to_page(pte_pfn(x))
+#define pfn_pte(pfn, prot)      __pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
+#define mk_pte(page, prot)      pfn_pte(page_to_pfn(page), prot)
+
+extern inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
+{
+        return __pte((pte_val(pte) & _PAGE_CHG_MASK) | pgprot_val(newprot));
+}
+
+/*
+ * Certain architectures need to do special things when pte's
+ * within a page table are directly modified.  Thus, the following
+ * hook is made available.
+ */
+static inline void update_pte(pte_t *ptep, pte_t pteval)
+{
+        *ptep = pteval;
+#if (DCACHE_WAY_SIZE > PAGE_SIZE) && XCHAL_DCACHE_IS_WRITEBACK
+        __asm__ __volatile__ ("memw; dhwb %0, 0; dsync" :: "a" (ptep));
+#endif
+}
+
+extern inline void
+set_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *ptep, pte_t pteval)
+{
+        update_pte(ptep, pteval);
+}
+
+
+extern inline void
+set_pmd(pmd_t *pmdp, pmd_t pmdval)
+{
+        *pmdp = pmdval;
+#if (DCACHE_WAY_SIZE > PAGE_SIZE) && XCHAL_DCACHE_IS_WRITEBACK
+        __asm__ __volatile__ ("memw; dhwb %0, 0; dsync" :: "a" (pmdp));
+#endif
+}
+
+
+static inline int
+ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr,
+                          pte_t *ptep)
+{
+        pte_t pte = *ptep;
+        if (!pte_young(pte))
+                return 0;
+        update_pte(ptep, pte_mkold(pte));
+        return 1;
+}
+
+static inline int
+ptep_test_and_clear_dirty(struct vm_area_struct *vma, unsigned long addr,
+                          pte_t *ptep)
+{
+        pte_t pte = *ptep;
+        if (!pte_dirty(pte))
+                return 0;
+        update_pte(ptep, pte_mkclean(pte));
+        return 1;
+}
+
+static inline pte_t
+ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
+{
+        pte_t pte = *ptep;
+        pte_clear(mm, addr, ptep);
+        return pte;
+}
+
+static inline void
+ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
+{
+        pte_t pte = *ptep;
+        update_pte(ptep, pte_wrprotect(pte));
+}
+
+/* to find an entry in a kernel page-table-directory */
+#define pgd_offset_k(address)   pgd_offset(&init_mm, address)
+
+/* to find an entry in a page-table-directory */
+#define pgd_offset(mm,address)  ((mm)->pgd + pgd_index(address))
+
+#define pgd_index(address)      ((address) >> PGDIR_SHIFT)
+
+/* Find an entry in the second-level page table.. */
+#define pmd_offset(dir,address) ((pmd_t*)(dir))
+
+/* Find an entry in the third-level page table.. */
+#define pte_index(address)      (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
+#define pte_offset_kernel(dir,addr)                                     \
+        ((pte_t*) pmd_page_kernel(*(dir)) + pte_index(addr))
+#define pte_offset_map(dir,addr)        pte_offset_kernel((dir),(addr))
+#define pte_offset_map_nested(dir,addr) pte_offset_kernel((dir),(addr))
+
+#define pte_unmap(pte)          do { } while (0)
+#define pte_unmap_nested(pte)   do { } while (0)
+
+
+/*
+ * Encode and decode a swap entry.
+ * Each PTE in a process VM's page table is either:
+ *   "present" -- valid and not swapped out, protection bits are meaningful;
+ *   "not present" -- which further subdivides in these two cases:
+ *      "none" -- no mapping at all; identified by pte_none(), set by pte_clear(
+ *      "swapped out" -- the page is swapped out, and the SWP macros below
+ *                      are used to store swap file info in the PTE itself.
+ *
+ * In the Xtensa processor MMU, any PTE entries in user space (or anywhere
+ * in virtual memory that can map differently across address spaces)
+ * must have a correct ring value that represents the RASID field that
+ * is changed when switching address spaces.  Eg. such PTE entries cannot
+ * be set to ring zero, because that can cause a (global) kernel ASID
+ * entry to be created in the TLBs (even with invalid cache attribute),
+ * potentially causing a multihit exception when going back to another
+ * address space that mapped the same virtual address at another ring.
+ *
+ * SO: we avoid using ring bits (_PAGE_RING_MASK) in "not present" PTEs.
+ * We also avoid using the _PAGE_VALID bit which must be zero for non-present
+ * pages.
+ *
+ * We end up with the following available bits:  1..3 and 7..31.
+ * We don't bother with 1..3 for now (we can use them later if needed),
+ * and chose to allocate 6 bits for SWP_TYPE and the remaining 19 bits
+ * for SWP_OFFSET.  At least 5 bits are needed for SWP_TYPE, because it
+ * is currently implemented as an index into swap_info[MAX_SWAPFILES]
+ * and MAX_SWAPFILES is currently defined as 32 in <linux/swap.h>.
+ * However, for some reason all other architectures in the 2.4 kernel
+ * reserve either 6, 7, or 8 bits so I'll not detract from that for now.  :)
+ * SWP_OFFSET is an offset into the swap file in page-size units, so
+ * with 4 kB pages, 19 bits supports a maximum swap file size of 2 GB.
+ *
+ * FIXME:  2 GB isn't very big.  Other bits can be used to allow
+ * larger swap sizes.  In the meantime, it appears relatively easy to get
+ * around the 2 GB limitation by simply using multiple swap files.
+ */
+
+#define __swp_type(entry)       (((entry).val >> 7) & 0x3f)
+#define __swp_offset(entry)     ((entry).val >> 13)
+#define __swp_entry(type,offs)  ((swp_entry_t) {((type) << 7) | ((offs) << 13)})
+#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
+#define __swp_entry_to_pte(x)   ((pte_t) { (x).val })
+
+#define PTE_FILE_MAX_BITS       29
+#define pte_to_pgoff(pte)       (pte_val(pte) >> 3)
+#define pgoff_to_pte(off)       ((pte_t) { ((off) << 3) | _PAGE_FILE })
+
+
+#endif /*  !defined (__ASSEMBLY__) */
+
+
+#ifdef __ASSEMBLY__
+
+/* Assembly macro _PGD_INDEX is the same as C pgd_index(unsigned long),
+ *                _PGD_OFFSET as C pgd_offset(struct mm_struct*, unsigned long),
+ *                _PMD_OFFSET as C pmd_offset(pgd_t*, unsigned long)
+ *                _PTE_OFFSET as C pte_offset(pmd_t*, unsigned long)
+ *
+ * Note: We require an additional temporary register which can be the same as
+ *       the register that holds the address.
+ *
+ * ((pte_t*) ((unsigned long)(pmd_val(*pmd) & PAGE_MASK)) + pte_index(addr))
+ *
+ */
+#define _PGD_INDEX(rt,rs)       extui   rt, rs, PGDIR_SHIFT, 32-PGDIR_SHIFT
+#define _PTE_INDEX(rt,rs)       extui   rt, rs, PAGE_SHIFT, PTRS_PER_PTE_SHIFT
+
+#define _PGD_OFFSET(mm,adr,tmp)         l32i    mm, mm, MM_PGD;         \
+                                        _PGD_INDEX(tmp, adr);           \
+                                        addx4   mm, tmp, mm
+
+#define _PTE_OFFSET(pmd,adr,tmp)        _PTE_INDEX(tmp, adr);           \
+                                        srli    pmd, pmd, PAGE_SHIFT;   \
+                                        slli    pmd, pmd, PAGE_SHIFT;   \
+                                        addx4   pmd, tmp, pmd
+
+#else
+
+extern void paging_init(void);
+
+#define kern_addr_valid(addr)   (1)
+
+extern  void update_mmu_cache(struct vm_area_struct * vma,
+                              unsigned long address, pte_t pte);
+
+/*
+ * remap a physical address `phys' of size `size' with page protection `prot'
+ * into virtual address `from'
+ */
+#define io_remap_page_range(vma,from,phys,size,prot) \
+                remap_pfn_range(vma, from, (phys) >> PAGE_SHIFT, size, prot)
+
+
+/* No page table caches to init */
+
+#define pgtable_cache_init()    do { } while (0)
+
+typedef pte_t *pte_addr_t;
+
+#endif /* !defined (__ASSEMBLY__) */
+
+#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
+#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY
+#define __HAVE_ARCH_PTEP_GET_AND_CLEAR
+#define __HAVE_ARCH_PTEP_SET_WRPROTECT
+#define __HAVE_ARCH_PTEP_MKDIRTY
+#define __HAVE_ARCH_PTE_SAME
+
+#include <asm-generic/pgtable.h>
+
+#endif /* _XTENSA_PGTABLE_H */
diff --git a/include/asm-xtensa/platform-iss/hardware.h b/include/asm-xtensa/platform-iss/hardware.h
new file mode 100644
index 000000000000..22240f001803
--- /dev/null
+++ b/include/asm-xtensa/platform-iss/hardware.h
@@ -0,0 +1,29 @@
+/*
+ * include/asm-xtensa/platform-iss/hardware.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 Tensilica Inc.
+ */
+
+/*
+ * This file contains the default configuration of ISS.
+ */
+
+#ifndef __ASM_XTENSA_ISS_HARDWARE
+#define __ASM_XTENSA_ISS_HARDWARE
+
+/*
+ * Memory configuration.
+ */
+
+#define PLATFORM_DEFAULT_MEM_START XSHAL_RAM_PADDR
+#define PLATFORM_DEFAULT_MEM_SIZE XSHAL_RAM_VSIZE
+
+/*
+ * Interrupt configuration.
+ */
+
+#endif /* __ASM_XTENSA_ISS_HARDWARE */
diff --git a/include/asm-xtensa/platform.h b/include/asm-xtensa/platform.h
new file mode 100644
index 000000000000..36163894bc20
--- /dev/null
+++ b/include/asm-xtensa/platform.h
@@ -0,0 +1,92 @@
+/*
+ * include/asm-xtensa/platform.h
+ *
+ * Platform specific functions
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file "COPYING" in the main directory of
+ * this archive for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_PLATFORM_H
+#define _XTENSA_PLATFORM_H
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+
+#include <asm/bootparam.h>
+
+/*
+ * platform_init is called before the mmu is initialized to give the
+ * platform a early hook-up. bp_tag_t is a list of configuration tags
+ * passed from the boot-loader.
+ */
+extern void platform_init(bp_tag_t*);
+
+/*
+ * platform_setup is called from setup_arch with a pointer to the command-line
+ * string.
+ */
+extern void platform_setup (char **);
+
+/*
+ * platform_init_irq is called from init_IRQ.
+ */
+extern void platform_init_irq (void);
+
+/*
+ * platform_restart is called to restart the system.
+ */
+extern void platform_restart (void);
+
+/*
+ * platform_halt is called to stop the system and halt.
+ */
+extern void platform_halt (void);
+
+/*
+ * platform_power_off is called to stop the system and power it off.
+ */
+extern void platform_power_off (void);
+
+/*
+ * platform_idle is called from the idle function.
+ */
+extern void platform_idle (void);
+
+/*
+ * platform_heartbeat is called every HZ
+ */
+extern void platform_heartbeat (void);
+
+/*
+ * platform_pcibios_init is called to allow the platform to setup the pci bus.
+ */
+extern void platform_pcibios_init (void);
+
+/*
+ * platform_pcibios_fixup allows to modify the PCI configuration.
+ */
+extern int platform_pcibios_fixup (void);
+
+/*
+ * platform_calibrate_ccount calibrates cpu clock freq (CONFIG_XTENSA_CALIBRATE)
+ */
+extern void platform_calibrate_ccount (void);
+
+/*
+ * platform_get_rtc_time returns RTC seconds (returns 0 for no error)
+ */
+extern int platform_get_rtc_time(time_t*);
+
+/*
+ * platform_set_rtc_time set RTC seconds (returns 0 for no error)
+ */
+extern int platform_set_rtc_time(time_t);
+
+
+#endif  /* _XTENSA_PLATFORM_H */
+
diff --git a/include/asm-xtensa/poll.h b/include/asm-xtensa/poll.h
new file mode 100644
index 000000000000..dffe447534e0
--- /dev/null
+++ b/include/asm-xtensa/poll.h
@@ -0,0 +1,37 @@
+/*
+ * include/asm-xtensa/poll.h
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file "COPYING" in the main directory of
+ * this archive for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_POLL_H
+#define _XTENSA_POLL_H
+
+
+#define POLLIN          0x0001
+#define POLLPRI         0x0002
+#define POLLOUT         0x0004
+
+#define POLLERR         0x0008
+#define POLLHUP         0x0010
+#define POLLNVAL        0x0020
+
+#define POLLRDNORM      0x0040
+#define POLLRDBAND      0x0080
+#define POLLWRNORM      POLLOUT
+#define POLLWRBAND      0x0100
+
+#define POLLMSG         0x0400
+#define POLLREMOVE      0x0800
+
+struct pollfd {
+        int fd;
+        short events;
+        short revents;
+};
+
+#endif /* _XTENSA_POLL_H */
diff --git a/include/asm-xtensa/posix_types.h b/include/asm-xtensa/posix_types.h
new file mode 100644
index 000000000000..2c816b0e7762
--- /dev/null
+++ b/include/asm-xtensa/posix_types.h
@@ -0,0 +1,123 @@
+/*
+ * include/asm-xtensa/posix_types.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Largely copied from include/asm-ppc/posix_types.h
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_POSIX_TYPES_H
+#define _XTENSA_POSIX_TYPES_H
+
+/*
+ * This file is generally used by user-level software, so you need to
+ * be a little careful about namespace pollution etc.  Also, we cannot
+ * assume GCC is being used.
+ */
+
+typedef unsigned long   __kernel_ino_t;
+typedef unsigned int    __kernel_mode_t;
+typedef unsigned short  __kernel_nlink_t;
+typedef long            __kernel_off_t;
+typedef int             __kernel_pid_t;
+typedef unsigned short  __kernel_ipc_pid_t;
+typedef unsigned int    __kernel_uid_t;
+typedef unsigned int    __kernel_gid_t;
+typedef unsigned int    __kernel_size_t;
+typedef int             __kernel_ssize_t;
+typedef long            __kernel_ptrdiff_t;
+typedef long            __kernel_time_t;
+typedef long            __kernel_suseconds_t;
+typedef long            __kernel_clock_t;
+typedef int             __kernel_timer_t;
+typedef int             __kernel_clockid_t;
+typedef int             __kernel_daddr_t;
+typedef char *          __kernel_caddr_t;
+typedef unsigned short  __kernel_uid16_t;
+typedef unsigned short  __kernel_gid16_t;
+typedef unsigned int    __kernel_uid32_t;
+typedef unsigned int    __kernel_gid32_t;
+
+typedef unsigned short  __kernel_old_uid_t;
+typedef unsigned short  __kernel_old_gid_t;
+typedef unsigned short  __kernel_old_dev_t;
+
+#ifdef __GNUC__
+typedef long long       __kernel_loff_t;
+#endif
+
+typedef struct {
+        int     val[2];
+} __kernel_fsid_t;
+
+#ifndef __GNUC__
+
+#define __FD_SET(d, set)        ((set)->fds_bits[__FDELT(d)] |= __FDMASK(d))
+#define __FD_CLR(d, set)        ((set)->fds_bits[__FDELT(d)] &= ~__FDMASK(d))
+#define __FD_ISSET(d, set)      ((set)->fds_bits[__FDELT(d)] & __FDMASK(d))
+#define __FD_ZERO(set)  \
+  ((void) memset ((__ptr_t) (set), 0, sizeof (__kernel_fd_set)))
+
+#else /* __GNUC__ */
+
+#if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) \
+    || (__GLIBC__ == 2 && __GLIBC_MINOR__ == 0)
+/* With GNU C, use inline functions instead so args are evaluated only once: */
+
+#undef __FD_SET
+static __inline__ void __FD_SET(unsigned long fd, __kernel_fd_set *fdsetp)
+{
+        unsigned long _tmp = fd / __NFDBITS;
+        unsigned long _rem = fd % __NFDBITS;
+        fdsetp->fds_bits[_tmp] |= (1UL<<_rem);
+}
+
+#undef __FD_CLR
+static __inline__ void __FD_CLR(unsigned long fd, __kernel_fd_set *fdsetp)
+{
+        unsigned long _tmp = fd / __NFDBITS;
+        unsigned long _rem = fd % __NFDBITS;
+        fdsetp->fds_bits[_tmp] &= ~(1UL<<_rem);
+}
+
+#undef __FD_ISSET
+static __inline__ int __FD_ISSET(unsigned long fd, __kernel_fd_set *p)
+{
+        unsigned long _tmp = fd / __NFDBITS;
+        unsigned long _rem = fd % __NFDBITS;
+        return (p->fds_bits[_tmp] & (1UL<<_rem)) != 0;
+}
+
+/*
+ * This will unroll the loop for the normal constant case (8 ints,
+ * for a 256-bit fd_set)
+ */
+#undef __FD_ZERO
+static __inline__ void __FD_ZERO(__kernel_fd_set *p)
+{
+        unsigned int *tmp = (unsigned int *)p->fds_bits;
+        int i;
+
+        if (__builtin_constant_p(__FDSET_LONGS)) {
+                switch (__FDSET_LONGS) {
+                        case 8:
+                                tmp[0] = 0; tmp[1] = 0; tmp[2] = 0; tmp[3] = 0;
+                                tmp[4] = 0; tmp[5] = 0; tmp[6] = 0; tmp[7] = 0;
+                                return;
+                }
+        }
+        i = __FDSET_LONGS;
+        while (i) {
+                i--;
+                *tmp = 0;
+                tmp++;
+        }
+}
+
+#endif /* defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) */
+#endif /* __GNUC__ */
+#endif /* _XTENSA_POSIX_TYPES_H */
diff --git a/include/asm-xtensa/processor.h b/include/asm-xtensa/processor.h
new file mode 100644
index 000000000000..9cab5e4298b9
--- /dev/null
+++ b/include/asm-xtensa/processor.h
@@ -0,0 +1,205 @@
+/*
+ * include/asm-xtensa/processor.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_PROCESSOR_H
+#define _XTENSA_PROCESSOR_H
+
+#ifdef __ASSEMBLY__
+#define _ASMLANGUAGE
+#endif
+
+#include <xtensa/config/core.h>
+#include <xtensa/config/specreg.h>
+#include <xtensa/config/tie.h>
+#include <xtensa/config/system.h>
+
+#include <asm/ptrace.h>
+#include <asm/types.h>
+#include <asm/coprocessor.h>
+
+/* Assertions. */
+
+#if (XCHAL_HAVE_WINDOWED != 1)
+#error Linux requires the Xtensa Windowed Registers Option.
+#endif
+
+/*
+ * User space process size: 1 GB.
+ * Windowed call ABI requires caller and callee to be located within the same
+ * 1 GB region. The C compiler places trampoline code on the stack for sources
+ * that take the address of a nested C function (a feature used by glibc), so
+ * the 1 GB requirement applies to the stack as well.
+ */
+
+#define TASK_SIZE       0x40000000
+
+/*
+ * General exception cause assigned to debug exceptions. Debug exceptions go
+ * to their own vector, rather than the general exception vectors (user,
+ * kernel, double); and their specific causes are reported via DEBUGCAUSE
+ * rather than EXCCAUSE.  However it is sometimes convenient to redirect debug
+ * exceptions to the general exception mechanism.  To do this, an otherwise
+ * unused EXCCAUSE value was assigned to debug exceptions for this purpose.
+ */
+
+#define EXCCAUSE_MAPPED_DEBUG   63
+
+/*
+ * We use DEPC also as a flag to distinguish between double and regular
+ * exceptions. For performance reasons, DEPC might contain the value of
+ * EXCCAUSE for regular exceptions, so we use this definition to mark a
+ * valid double exception address.
+ * (Note: We use it in bgeui, so it should be 64, 128, or 256)
+ */
+
+#define VALID_DOUBLE_EXCEPTION_ADDRESS  64
+
+/* LOCKLEVEL defines the interrupt level that masks all
+ * general-purpose interrupts.
+ */
+#define LOCKLEVEL 1
+
+/* WSBITS and WBBITS are the width of the WINDOWSTART and WINDOWBASE
+ * registers
+ */
+#define WSBITS  (XCHAL_NUM_AREGS / 4)      /* width of WINDOWSTART in bits */
+#define WBBITS  (XCHAL_NUM_AREGS_LOG2 - 2) /* width of WINDOWBASE in bits */
+
+#ifndef __ASSEMBLY__
+
+/* Build a valid return address for the specified call winsize.
+ * winsize must be 1 (call4), 2 (call8), or 3 (call12)
+ */
+#define MAKE_RA_FOR_CALL(ra,ws)   (((ra) & 0x3fffffff) | (ws) << 30)
+
+/* Convert return address to a valid pc
+ * Note: We assume that the stack pointer is in the same 1GB ranges as the ra
+ */
+#define MAKE_PC_FROM_RA(ra,sp)    (((ra) & 0x3fffffff) | ((sp) & 0xc0000000))
+
+typedef struct {
+    unsigned long seg;
+} mm_segment_t;
+
+struct thread_struct {
+
+        /* kernel's return address and stack pointer for context switching */
+        unsigned long ra; /* kernel's a0: return address and window call size */
+        unsigned long sp; /* kernel's a1: stack pointer */
+
+        mm_segment_t current_ds;    /* see uaccess.h for example uses */
+
+        /* struct xtensa_cpuinfo info; */
+
+        unsigned long bad_vaddr; /* last user fault */
+        unsigned long bad_uaddr; /* last kernel fault accessing user space */
+        unsigned long error_code;
+
+        unsigned long ibreak[XCHAL_NUM_IBREAK];
+        unsigned long dbreaka[XCHAL_NUM_DBREAK];
+        unsigned long dbreakc[XCHAL_NUM_DBREAK];
+
+        /* Allocate storage for extra state and coprocessor state. */
+        unsigned char cp_save[XTENSA_CP_EXTRA_SIZE]
+                __attribute__ ((aligned(XTENSA_CP_EXTRA_ALIGN)));
+
+        /* Make structure 16 bytes aligned. */
+        int align[0] __attribute__ ((aligned(16)));
+};
+
+
+/*
+ * Default implementation of macro that returns current
+ * instruction pointer ("program counter").
+ */
+#define current_text_addr()  ({ __label__ _l; _l: &&_l;})
+
+
+/* This decides where the kernel will search for a free chunk of vm
+ * space during mmap's.
+ */
+#define TASK_UNMAPPED_BASE      (TASK_SIZE / 2)
+
+#define INIT_THREAD  \
+{                                                                       \
+        ra:             0,                                              \
+        sp:             sizeof(init_stack) + (long) &init_stack,        \
+        current_ds:     {0},                                            \
+        /*info:         {0}, */                                         \
+        bad_vaddr:      0,                                              \
+        bad_uaddr:      0,                                              \
+        error_code:     0,                                              \
+}
+
+
+/*
+ * Do necessary setup to start up a newly executed thread.
+ * Note: We set-up ps as if we did a call4 to the new pc.
+ *       set_thread_state in signal.c depends on it.
+ */
+#define USER_PS_VALUE ( (1 << XCHAL_PS_WOE_SHIFT) + \
+                        (1 << XCHAL_PS_CALLINC_SHIFT) + \
+                        (USER_RING << XCHAL_PS_RING_SHIFT) + \
+                        (1 << XCHAL_PS_PROGSTACK_SHIFT) + \
+                        (1 << XCHAL_PS_EXCM_SHIFT) )
+
+/* Clearing a0 terminates the backtrace. */
+#define start_thread(regs, new_pc, new_sp) \
+        regs->pc = new_pc; \
+        regs->ps = USER_PS_VALUE; \
+        regs->areg[1] = new_sp; \
+        regs->areg[0] = 0; \
+        regs->wmask = 1; \
+        regs->depc = 0; \
+        regs->windowbase = 0; \
+        regs->windowstart = 1;
+
+/* Forward declaration */
+struct task_struct;
+struct mm_struct;
+
+// FIXME: do we need release_thread for CP??
+/* Free all resources held by a thread. */
+#define release_thread(thread) do { } while(0)
+
+// FIXME: do we need prepare_to_copy (lazy status) for CP??
+/* Prepare to copy thread state - unlazy all lazy status */
+#define prepare_to_copy(tsk)    do { } while (0)
+
+/*
+ * create a kernel thread without removing it from tasklists
+ */
+extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
+
+/* Copy and release all segment info associated with a VM */
+
+#define copy_segments(p, mm)    do { } while(0)
+#define release_segments(mm)    do { } while(0)
+#define forget_segments()       do { } while (0)
+
+#define thread_saved_pc(tsk)    (xtensa_pt_regs(tsk)->pc)
+
+extern unsigned long get_wchan(struct task_struct *p);
+
+#define KSTK_EIP(tsk)           (xtensa_pt_regs(tsk)->pc)
+#define KSTK_ESP(tsk)           (xtensa_pt_regs(tsk)->areg[1])
+
+#define cpu_relax()  do { } while (0)
+
+/* Special register access. */
+
+#define WSR(v,sr) __asm__ __volatile__ ("wsr %0,"__stringify(sr) :: "a"(v));
+#define RSR(v,sr) __asm__ __volatile__ ("rsr %0,"__stringify(sr) : "=a"(v));
+
+#define set_sr(x,sr) ({unsigned int v=(unsigned int)x; WSR(v,sr);})
+#define get_sr(sr) ({unsigned int v; RSR(v,sr); v; })
+
+#endif  /* __ASSEMBLY__ */
+#endif  /* _XTENSA_PROCESSOR_H */
diff --git a/include/asm-xtensa/ptrace.h b/include/asm-xtensa/ptrace.h
new file mode 100644
index 000000000000..2848a5ff8349
--- /dev/null
+++ b/include/asm-xtensa/ptrace.h
@@ -0,0 +1,135 @@
+/*
+ * include/asm-xtensa/ptrace.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_PTRACE_H
+#define _XTENSA_PTRACE_H
+
+#include <xtensa/config/core.h>
+
+/*
+ * Kernel stack
+ *
+ *              +-----------------------+  -------- STACK_SIZE
+ *              |     register file     |  |
+ *              +-----------------------+  |
+ *              |    struct pt_regs     |  |
+ *              +-----------------------+  | ------ PT_REGS_OFFSET
+ * double       :  16 bytes spill area  :  |  ^
+ * excetion     :- - - - - - - - - - - -:  |  |
+ * frame        :    struct pt_regs     :  |  |
+ *              :- - - - - - - - - - - -:  |  |
+ *              |                       |  |  |
+ *              |     memory stack      |  |  |
+ *              |                       |  |  |
+ *              ~                       ~  ~  ~
+ *              ~                       ~  ~  ~
+ *              |                       |  |  |
+ *              |                       |  |  |
+ *              +-----------------------+  |  | --- STACK_BIAS
+ *              |  struct task_struct   |  |  |  ^
+ *  current --> +-----------------------+  |  |  |
+ *              |  struct thread_info   |  |  |  |
+ *              +-----------------------+ --------
+ */
+
+#define KERNEL_STACK_SIZE (2 * PAGE_SIZE)
+
+/*  Offsets for exception_handlers[] (3 x 64-entries x 4-byte tables). */
+
+#define EXC_TABLE_KSTK          0x004   /* Kernel Stack */
+#define EXC_TABLE_DOUBLE_SAVE   0x008   /* Double exception save area for a0 */
+#define EXC_TABLE_FIXUP         0x00c   /* Fixup handler */
+#define EXC_TABLE_PARAM         0x010   /* For passing a parameter to fixup */
+#define EXC_TABLE_SYSCALL_SAVE  0x014   /* For fast syscall handler */
+#define EXC_TABLE_FAST_USER     0x100   /* Fast user exception handler */
+#define EXC_TABLE_FAST_KERNEL   0x200   /* Fast kernel exception handler */
+#define EXC_TABLE_DEFAULT       0x300   /* Default C-Handler */
+#define EXC_TABLE_SIZE          0x400
+
+/* Registers used by strace */
+
+#define REG_A_BASE      0xfc000000
+#define REG_AR_BASE     0x04000000
+#define REG_PC          0x14000000
+#define REG_PS          0x080000e6
+#define REG_WB          0x08000048
+#define REG_WS          0x08000049
+#define REG_LBEG        0x08000000
+#define REG_LEND        0x08000001
+#define REG_LCOUNT      0x08000002
+#define REG_SAR         0x08000003
+#define REG_DEPC        0x080000c0
+#define REG_EXCCAUSE    0x080000e8
+#define REG_EXCVADDR    0x080000ee
+#define SYSCALL_NR      0x1
+
+#define AR_REGNO_TO_A_REGNO(ar, wb) (ar - wb*4) & ~(XCHAL_NUM_AREGS - 1)
+
+/* Other PTRACE_ values defined in <linux/ptrace.h> using values 0-9,16,17,24 */
+
+#define PTRACE_GETREGS            12
+#define PTRACE_SETREGS            13
+#define PTRACE_GETFPREGS          14
+#define PTRACE_SETFPREGS          15
+#define PTRACE_GETFPREGSIZE       18
+
+#ifndef __ASSEMBLY__
+
+/*
+ * This struct defines the way the registers are stored on the
+ * kernel stack during a system call or other kernel entry.
+ */
+struct pt_regs {
+        unsigned long pc;               /*   4 */
+        unsigned long ps;               /*   8 */
+        unsigned long depc;             /*  12 */
+        unsigned long exccause;         /*  16 */
+        unsigned long excvaddr;         /*  20 */
+        unsigned long debugcause;       /*  24 */
+        unsigned long wmask;            /*  28 */
+        unsigned long lbeg;             /*  32 */
+        unsigned long lend;             /*  36 */
+        unsigned long lcount;           /*  40 */
+        unsigned long sar;              /*  44 */
+        unsigned long windowbase;       /*  48 */
+        unsigned long windowstart;      /*  52 */
+        unsigned long syscall;          /*  56 */
+        int reserved[2];                /*  64 */
+
+        /* Make sure the areg field is 16 bytes aligned. */
+        int align[0] __attribute__ ((aligned(16)));
+
+        /* current register frame.
+         * Note: The ESF for kernel exceptions ends after 16 registers!
+         */
+        unsigned long areg[16];         /* 128 (64) */
+};
+
+#ifdef __KERNEL__
+# define xtensa_pt_regs(tsk) ((struct pt_regs*) \
+  (((long)(tsk)->thread_info + KERNEL_STACK_SIZE - (XCHAL_NUM_AREGS-16)*4)) - 1)
+# define user_mode(regs) (((regs)->ps & 0x00000020)!=0)
+# define instruction_pointer(regs) ((regs)->pc)
+extern void show_regs(struct pt_regs *);
+
+# ifndef CONFIG_SMP
+#  define profile_pc(regs) instruction_pointer(regs)
+# endif
+#endif /* __KERNEL__ */
+
+#else   /* __ASSEMBLY__ */
+
+#ifdef __KERNEL__
+# include <asm/offsets.h>
+#define PT_REGS_OFFSET    (KERNEL_STACK_SIZE - PT_USER_SIZE)
+#endif
+
+#endif  /* !__ASSEMBLY__ */
+#endif  /* _XTENSA_PTRACE_H */
diff --git a/include/asm-xtensa/resource.h b/include/asm-xtensa/resource.h
new file mode 100644
index 000000000000..17b5ab311771
--- /dev/null
+++ b/include/asm-xtensa/resource.h
@@ -0,0 +1,16 @@
+/*
+ * include/asm-xtensa/resource.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_RESOURCE_H
+#define _XTENSA_RESOURCE_H
+
+#include <asm-generic/resource.h>
+
+#endif  /* _XTENSA_RESOURCE_H */
diff --git a/include/asm-xtensa/rmap.h b/include/asm-xtensa/rmap.h
new file mode 100644
index 000000000000..649588b7e9ad
--- /dev/null
+++ b/include/asm-xtensa/rmap.h
@@ -0,0 +1,16 @@
+/*
+ * include/asm-xtensa/rmap.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_RMAP_H
+#define _XTENSA_RMAP_H
+
+#include <asm-generic/rmap.h>
+
+#endif
diff --git a/include/asm-xtensa/rwsem.h b/include/asm-xtensa/rwsem.h
new file mode 100644
index 000000000000..3c02b0e033f0
--- /dev/null
+++ b/include/asm-xtensa/rwsem.h
@@ -0,0 +1,175 @@
+/*
+ * include/asm-xtensa/rwsem.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Largely copied from include/asm-ppc/rwsem.h
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_RWSEM_H
+#define _XTENSA_RWSEM_H
+
+#include <linux/list.h>
+#include <linux/spinlock.h>
+#include <asm/atomic.h>
+#include <asm/system.h>
+
+/*
+ * the semaphore definition
+ */
+struct rw_semaphore {
+        signed long             count;
+#define RWSEM_UNLOCKED_VALUE            0x00000000
+#define RWSEM_ACTIVE_BIAS               0x00000001
+#define RWSEM_ACTIVE_MASK               0x0000ffff
+#define RWSEM_WAITING_BIAS              (-0x00010000)
+#define RWSEM_ACTIVE_READ_BIAS          RWSEM_ACTIVE_BIAS
+#define RWSEM_ACTIVE_WRITE_BIAS         (RWSEM_WAITING_BIAS + RWSEM_ACTIVE_BIAS)
+        spinlock_t              wait_lock;
+        struct list_head        wait_list;
+#if RWSEM_DEBUG
+        int                     debug;
+#endif
+};
+
+/*
+ * initialisation
+ */
+#if RWSEM_DEBUG
+#define __RWSEM_DEBUG_INIT      , 0
+#else
+#define __RWSEM_DEBUG_INIT      /* */
+#endif
+
+#define __RWSEM_INITIALIZER(name) \
+        { RWSEM_UNLOCKED_VALUE, SPIN_LOCK_UNLOCKED, \
+          LIST_HEAD_INIT((name).wait_list) \
+          __RWSEM_DEBUG_INIT }
+
+#define DECLARE_RWSEM(name)             \
+        struct rw_semaphore name = __RWSEM_INITIALIZER(name)
+
+extern struct rw_semaphore *rwsem_down_read_failed(struct rw_semaphore *sem);
+extern struct rw_semaphore *rwsem_down_write_failed(struct rw_semaphore *sem);
+extern struct rw_semaphore *rwsem_wake(struct rw_semaphore *sem);
+extern struct rw_semaphore *rwsem_downgrade_wake(struct rw_semaphore *sem);
+
+static inline void init_rwsem(struct rw_semaphore *sem)
+{
+        sem->count = RWSEM_UNLOCKED_VALUE;
+        spin_lock_init(&sem->wait_lock);
+        INIT_LIST_HEAD(&sem->wait_list);
+#if RWSEM_DEBUG
+        sem->debug = 0;
+#endif
+}
+
+/*
+ * lock for reading
+ */
+static inline void __down_read(struct rw_semaphore *sem)
+{
+        if (atomic_add_return(1,(atomic_t *)(&sem->count)) > 0)
+                smp_wmb();
+        else
+                rwsem_down_read_failed(sem);
+}
+
+static inline int __down_read_trylock(struct rw_semaphore *sem)
+{
+        int tmp;
+
+        while ((tmp = sem->count) >= 0) {
+                if (tmp == cmpxchg(&sem->count, tmp,
+                                   tmp + RWSEM_ACTIVE_READ_BIAS)) {
+                        smp_wmb();
+                        return 1;
+                }
+        }
+        return 0;
+}
+
+/*
+ * lock for writing
+ */
+static inline void __down_write(struct rw_semaphore *sem)
+{
+        int tmp;
+
+        tmp = atomic_add_return(RWSEM_ACTIVE_WRITE_BIAS,
+                                (atomic_t *)(&sem->count));
+        if (tmp == RWSEM_ACTIVE_WRITE_BIAS)
+                smp_wmb();
+        else
+                rwsem_down_write_failed(sem);
+}
+
+static inline int __down_write_trylock(struct rw_semaphore *sem)
+{
+        int tmp;
+
+        tmp = cmpxchg(&sem->count, RWSEM_UNLOCKED_VALUE,
+                      RWSEM_ACTIVE_WRITE_BIAS);
+        smp_wmb();
+        return tmp == RWSEM_UNLOCKED_VALUE;
+}
+
+/*
+ * unlock after reading
+ */
+static inline void __up_read(struct rw_semaphore *sem)
+{
+        int tmp;
+
+        smp_wmb();
+        tmp = atomic_sub_return(1,(atomic_t *)(&sem->count));
+        if (tmp < -1 && (tmp & RWSEM_ACTIVE_MASK) == 0)
+                rwsem_wake(sem);
+}
+
+/*
+ * unlock after writing
+ */
+static inline void __up_write(struct rw_semaphore *sem)
+{
+        smp_wmb();
+        if (atomic_sub_return(RWSEM_ACTIVE_WRITE_BIAS,
+                              (atomic_t *)(&sem->count)) < 0)
+                rwsem_wake(sem);
+}
+
+/*
+ * implement atomic add functionality
+ */
+static inline void rwsem_atomic_add(int delta, struct rw_semaphore *sem)
+{
+        atomic_add(delta, (atomic_t *)(&sem->count));
+}
+
+/*
+ * downgrade write lock to read lock
+ */
+static inline void __downgrade_write(struct rw_semaphore *sem)
+{
+        int tmp;
+
+        smp_wmb();
+        tmp = atomic_add_return(-RWSEM_WAITING_BIAS, (atomic_t *)(&sem->count));
+        if (tmp < 0)
+                rwsem_downgrade_wake(sem);
+}
+
+/*
+ * implement exchange and add functionality
+ */
+static inline int rwsem_atomic_update(int delta, struct rw_semaphore *sem)
+{
+        smp_mb();
+        return atomic_add_return(delta, (atomic_t *)(&sem->count));
+}
+
+#endif  /* _XTENSA_RWSEM_XADD_H */
diff --git a/include/asm-xtensa/scatterlist.h b/include/asm-xtensa/scatterlist.h
new file mode 100644
index 000000000000..38a2b9acd658
--- /dev/null
+++ b/include/asm-xtensa/scatterlist.h
@@ -0,0 +1,34 @@
+/*
+ * include/asm-xtensa/scatterlist.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_SCATTERLIST_H
+#define _XTENSA_SCATTERLIST_H
+
+struct scatterlist {
+        struct page     *page;
+        unsigned int    offset;
+        dma_addr_t      dma_address;
+        unsigned int    length;
+};
+
+/*
+ * These macros should be used after a pci_map_sg call has been done
+ * to get bus addresses of each of the SG entries and their lengths.
+ * You should only work with the number of sg entries pci_map_sg
+ * returns, or alternatively stop on the first sg_dma_len(sg) which
+ * is 0.
+ */
+#define sg_dma_address(sg)      ((sg)->dma_address)
+#define sg_dma_len(sg)          ((sg)->length)
+
+
+#define ISA_DMA_THRESHOLD (~0UL)
+
+#endif  /* _XTENSA_SCATTERLIST_H */
diff --git a/include/asm-xtensa/sections.h b/include/asm-xtensa/sections.h
new file mode 100644
index 000000000000..40b5191b55a2
--- /dev/null
+++ b/include/asm-xtensa/sections.h
@@ -0,0 +1,16 @@
+/*
+ * include/asm-xtensa/sections.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_SECTIONS_H
+#define _XTENSA_SECTIONS_H
+
+#include <asm-generic/sections.h>
+
+#endif  /* _XTENSA_SECTIONS_H */
diff --git a/include/asm-xtensa/segment.h b/include/asm-xtensa/segment.h
new file mode 100644
index 000000000000..a2eb547a1a75
--- /dev/null
+++ b/include/asm-xtensa/segment.h
@@ -0,0 +1,16 @@
+/*
+ * include/asm-xtensa/segment.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_SEGMENT_H
+#define _XTENSA_SEGMENT_H
+
+#include <asm/uaccess.h>
+
+#endif  /* _XTENSA_SEGEMENT_H */
diff --git a/include/asm-xtensa/semaphore.h b/include/asm-xtensa/semaphore.h
new file mode 100644
index 000000000000..c8a7574a9a57
--- /dev/null
+++ b/include/asm-xtensa/semaphore.h
@@ -0,0 +1,129 @@
+/*
+ * linux/include/asm-xtensa/semaphore.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_SEMAPHORE_H
+#define _XTENSA_SEMAPHORE_H
+
+#include <asm/atomic.h>
+#include <asm/system.h>
+#include <linux/wait.h>
+#include <linux/rwsem.h>
+
+struct semaphore {
+        atomic_t count;
+        int sleepers;
+        wait_queue_head_t wait;
+#if WAITQUEUE_DEBUG
+        long __magic;
+#endif
+};
+
+#if WAITQUEUE_DEBUG
+# define __SEM_DEBUG_INIT(name) \
+                , (int)&(name).__magic
+#else
+# define __SEM_DEBUG_INIT(name)
+#endif
+
+#define __SEMAPHORE_INITIALIZER(name,count)                     \
+        { ATOMIC_INIT(count),                                   \
+          0,                                                    \
+          __WAIT_QUEUE_HEAD_INITIALIZER((name).wait)            \
+        __SEM_DEBUG_INIT(name) }
+
+#define __MUTEX_INITIALIZER(name) \
+        __SEMAPHORE_INITIALIZER(name, 1)
+
+#define __DECLARE_SEMAPHORE_GENERIC(name,count) \
+        struct semaphore name = __SEMAPHORE_INITIALIZER(name,count)
+
+#define DECLARE_MUTEX(name) __DECLARE_SEMAPHORE_GENERIC(name,1)
+#define DECLARE_MUTEX_LOCKED(name) __DECLARE_SEMAPHORE_GENERIC(name,0)
+
+extern inline void sema_init (struct semaphore *sem, int val)
+{
+/*
+ *      *sem = (struct semaphore)__SEMAPHORE_INITIALIZER((*sem),val);
+ *
+ * i'd rather use the more flexible initialization above, but sadly
+ * GCC 2.7.2.3 emits a bogus warning. EGCS doesnt. Oh well.
+ */
+        atomic_set(&sem->count, val);
+        init_waitqueue_head(&sem->wait);
+#if WAITQUEUE_DEBUG
+        sem->__magic = (int)&sem->__magic;
+#endif
+}
+
+static inline void init_MUTEX (struct semaphore *sem)
+{
+        sema_init(sem, 1);
+}
+
+static inline void init_MUTEX_LOCKED (struct semaphore *sem)
+{
+        sema_init(sem, 0);
+}
+
+asmlinkage void __down(struct semaphore * sem);
+asmlinkage int  __down_interruptible(struct semaphore * sem);
+asmlinkage int  __down_trylock(struct semaphore * sem);
+asmlinkage void __up(struct semaphore * sem);
+
+extern spinlock_t semaphore_wake_lock;
+
+extern __inline__ void down(struct semaphore * sem)
+{
+#if WAITQUEUE_DEBUG
+        CHECK_MAGIC(sem->__magic);
+#endif
+
+        if (atomic_sub_return(1, &sem->count) < 0)
+                __down(sem);
+}
+
+extern __inline__ int down_interruptible(struct semaphore * sem)
+{
+        int ret = 0;
+#if WAITQUEUE_DEBUG
+        CHECK_MAGIC(sem->__magic);
+#endif
+
+        if (atomic_sub_return(1, &sem->count) < 0)
+                ret = __down_interruptible(sem);
+        return ret;
+}
+
+extern __inline__ int down_trylock(struct semaphore * sem)
+{
+        int ret = 0;
+#if WAITQUEUE_DEBUG
+        CHECK_MAGIC(sem->__magic);
+#endif
+
+        if (atomic_sub_return(1, &sem->count) < 0)
+                ret = __down_trylock(sem);
+        return ret;
+}
+
+/*
+ * Note! This is subtle. We jump to wake people up only if
+ * the semaphore was negative (== somebody was waiting on it).
+ */
+extern __inline__ void up(struct semaphore * sem)
+{
+#if WAITQUEUE_DEBUG
+        CHECK_MAGIC(sem->__magic);
+#endif
+        if (atomic_add_return(1, &sem->count) <= 0)
+                __up(sem);
+}
+
+#endif /* _XTENSA_SEMAPHORE_H */
diff --git a/include/asm-xtensa/sembuf.h b/include/asm-xtensa/sembuf.h
new file mode 100644
index 000000000000..2d26c47666fe
--- /dev/null
+++ b/include/asm-xtensa/sembuf.h
@@ -0,0 +1,44 @@
+/*
+ * include/asm-xtensa/sembuf.h
+ *
+ * The semid64_ds structure for Xtensa architecture.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ *
+ * Note extra padding because this structure is passed back and forth
+ * between kernel and user space.
+ *
+ * Pad space is left for:
+ * - 64-bit time_t to solve y2038 problem
+ * - 2 miscellaneous 32-bit values
+ *
+ */
+
+#ifndef _XTENSA_SEMBUF_H
+#define _XTENSA_SEMBUF_H
+
+#include <asm/byteorder.h>
+
+struct semid64_ds {
+        struct ipc64_perm sem_perm;             /* permissions .. see ipc.h */
+#if XCHAL_HAVE_LE
+        __kernel_time_t sem_otime;              /* last semop time */
+        unsigned long   __unused1;
+        __kernel_time_t sem_ctime;              /* last change time */
+        unsigned long   __unused2;
+#else
+        unsigned long   __unused1;
+        __kernel_time_t sem_otime;              /* last semop time */
+        unsigned long   __unused2;
+        __kernel_time_t sem_ctime;              /* last change time */
+#endif
+        unsigned long   sem_nsems;              /* no. of semaphores in array */
+        unsigned long   __unused3;
+        unsigned long   __unused4;
+};
+
+#endif /* __ASM_XTENSA_SEMBUF_H */
diff --git a/include/asm-xtensa/serial.h b/include/asm-xtensa/serial.h
new file mode 100644
index 000000000000..ec04114fcf0b
--- /dev/null
+++ b/include/asm-xtensa/serial.h
@@ -0,0 +1,18 @@
+/*
+ * include/asm-xtensa/serial.h
+ *
+ * Configuration details for 8250, 16450, 16550, etc. serial ports
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_SERIAL_H
+#define _XTENSA_SERIAL_H
+
+#include <asm/platform/serial.h>
+
+#endif  /* _XTENSA_SERIAL_H */
diff --git a/include/asm-xtensa/setup.h b/include/asm-xtensa/setup.h
new file mode 100644
index 000000000000..e3636520d8cc
--- /dev/null
+++ b/include/asm-xtensa/setup.h
@@ -0,0 +1,16 @@
+/*
+ * include/asm-xtensa/setup.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_SETUP_H
+#define _XTENSA_SETUP_H
+
+#define COMMAND_LINE_SIZE       256
+
+#endif
diff --git a/include/asm-xtensa/shmbuf.h b/include/asm-xtensa/shmbuf.h
new file mode 100644
index 000000000000..a30b81a4b933
--- /dev/null
+++ b/include/asm-xtensa/shmbuf.h
@@ -0,0 +1,50 @@
+/*
+ * include/asm-xtensa/shmbuf.h
+ *
+ * The shmid64_ds structure for Xtensa architecture.
+ * Note extra padding because this structure is passed back and forth
+ * between kernel and user space.
+ *
+ * Pad space is left for:
+ * - 64-bit time_t to solve y2038 problem
+ * - 2 miscellaneous 32-bit values
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_SHMBUF_H
+#define _XTENSA_SHMBUF_H
+
+struct shmid64_ds {
+        struct ipc64_perm       shm_perm;       /* operation perms */
+        size_t                  shm_segsz;      /* size of segment (bytes) */
+        __kernel_time_t         shm_atime;      /* last attach time */
+        unsigned long           __unused1;
+        __kernel_time_t         shm_dtime;      /* last detach time */
+        unsigned long           __unused2;
+        __kernel_time_t         shm_ctime;      /* last change time */
+        unsigned long           __unused3;
+        __kernel_pid_t          shm_cpid;       /* pid of creator */
+        __kernel_pid_t          shm_lpid;       /* pid of last operator */
+        unsigned long           shm_nattch;     /* no. of current attaches */
+        unsigned long           __unused4;
+        unsigned long           __unused5;
+};
+
+struct shminfo64 {
+        unsigned long   shmmax;
+        unsigned long   shmmin;
+        unsigned long   shmmni;
+        unsigned long   shmseg;
+        unsigned long   shmall;
+        unsigned long   __unused1;
+        unsigned long   __unused2;
+        unsigned long   __unused3;
+        unsigned long   __unused4;
+};
+
+#endif  /* _XTENSA_SHMBUF_H */
diff --git a/include/asm-xtensa/shmparam.h b/include/asm-xtensa/shmparam.h
new file mode 100644
index 000000000000..d3b65bfa71c3
--- /dev/null
+++ b/include/asm-xtensa/shmparam.h
@@ -0,0 +1,23 @@
+/*
+ * include/asm-xtensa/shmparam.h
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file "COPYING" in the main directory of
+ * this archive for more details.
+ */
+
+#ifndef _XTENSA_SHMPARAM_H
+#define _XTENSA_SHMPARAM_H
+
+#include <asm/processor.h>
+
+/*
+ * Xtensa can have variable size caches, and if
+ * the size of single way is larger than the page size,
+ * then we have to start worrying about cache aliasing
+ * problems.
+ */
+
+#define SHMLBA  ((PAGE_SIZE > DCACHE_WAY_SIZE)? PAGE_SIZE : DCACHE_WAY_SIZE)
+
+#endif /* _XTENSA_SHMPARAM_H */
diff --git a/include/asm-xtensa/sigcontext.h b/include/asm-xtensa/sigcontext.h
new file mode 100644
index 000000000000..a75177291418
--- /dev/null
+++ b/include/asm-xtensa/sigcontext.h
@@ -0,0 +1,44 @@
+/*
+ * include/asm-xtensa/sigcontext.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2003 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_SIGCONTEXT_H
+#define _XTENSA_SIGCONTEXT_H
+
+#define _ASMLANGUAGE
+#include <asm/processor.h>
+#include <asm/coprocessor.h>
+
+
+struct _cpstate {
+        unsigned char _cpstate[XTENSA_CP_EXTRA_SIZE];
+} __attribute__ ((aligned (XTENSA_CP_EXTRA_ALIGN)));
+
+
+struct sigcontext {
+        unsigned long   oldmask;
+
+        /* CPU registers */
+        unsigned long sc_pc;
+        unsigned long sc_ps;
+        unsigned long sc_wmask;
+        unsigned long sc_windowbase;
+        unsigned long sc_windowstart;
+        unsigned long sc_lbeg;
+        unsigned long sc_lend;
+        unsigned long sc_lcount;
+        unsigned long sc_sar;
+        unsigned long sc_depc;
+        unsigned long sc_dareg0;
+        unsigned long sc_treg[4];
+        unsigned long sc_areg[XCHAL_NUM_AREGS];
+        struct _cpstate *sc_cpstate;
+};
+
+#endif /* __ASM_XTENSA_SIGCONTEXT_H */
diff --git a/include/asm-xtensa/siginfo.h b/include/asm-xtensa/siginfo.h
new file mode 100644
index 000000000000..44f0ae77b539
--- /dev/null
+++ b/include/asm-xtensa/siginfo.h
@@ -0,0 +1,16 @@
+/*
+ * include/asm-xtensa/processor.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_SIGINFO_H
+#define _XTENSA_SIGINFO_H
+
+#include <asm-generic/siginfo.h>
+
+#endif  /* _XTENSA_SIGINFO_H */
diff --git a/include/asm-xtensa/signal.h b/include/asm-xtensa/signal.h
new file mode 100644
index 000000000000..5d6fc9cdf58d
--- /dev/null
+++ b/include/asm-xtensa/signal.h
@@ -0,0 +1,187 @@
+/*
+ * include/asm-xtensa/signal.h
+ *
+ * Swiped from SH.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_SIGNAL_H
+#define _XTENSA_SIGNAL_H
+
+
+#define _NSIG           64
+#define _NSIG_BPW       32
+#define _NSIG_WORDS     (_NSIG / _NSIG_BPW)
+
+#ifndef __ASSEMBLY__
+
+#include <linux/types.h>
+
+/* Avoid too many header ordering problems.  */
+struct siginfo;
+typedef unsigned long old_sigset_t;             /* at least 32 bits */
+typedef struct {
+        unsigned long sig[_NSIG_WORDS];
+} sigset_t;
+
+#endif
+
+#define SIGHUP           1
+#define SIGINT           2
+#define SIGQUIT          3
+#define SIGILL           4
+#define SIGTRAP          5
+#define SIGABRT          6
+#define SIGIOT           6
+#define SIGBUS           7
+#define SIGFPE           8
+#define SIGKILL          9
+#define SIGUSR1         10
+#define SIGSEGV         11
+#define SIGUSR2         12
+#define SIGPIPE         13
+#define SIGALRM         14
+#define SIGTERM         15
+#define SIGSTKFLT       16
+#define SIGCHLD         17
+#define SIGCONT         18
+#define SIGSTOP         19
+#define SIGTSTP         20
+#define SIGTTIN         21
+#define SIGTTOU         22
+#define SIGURG          23
+#define SIGXCPU         24
+#define SIGXFSZ         25
+#define SIGVTALRM       26
+#define SIGPROF         27
+#define SIGWINCH        28
+#define SIGIO           29
+#define SIGPOLL         SIGIO
+/* #define SIGLOST              29 */
+#define SIGPWR          30
+#define SIGSYS          31
+#define SIGUNUSED       31
+
+/* These should not be considered constants from userland.  */
+#define SIGRTMIN        32
+#define SIGRTMAX        (_NSIG-1)
+
+/*
+ * SA_FLAGS values:
+ *
+ * SA_ONSTACK indicates that a registered stack_t will be used.
+ * SA_INTERRUPT is a no-op, but left due to historical reasons. Use the
+ * SA_RESTART flag to get restarting signals (which were the default long ago)
+ * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
+ * SA_RESETHAND clears the handler when the signal is delivered.
+ * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
+ * SA_NODEFER prevents the current signal from being masked in the handler.
+ *
+ * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
+ * Unix names RESETHAND and NODEFER respectively.
+ */
+#define SA_NOCLDSTOP    0x00000001
+#define SA_NOCLDWAIT    0x00000002 /* not supported yet */
+#define SA_SIGINFO      0x00000004
+#define SA_ONSTACK      0x08000000
+#define SA_RESTART      0x10000000
+#define SA_NODEFER      0x40000000
+#define SA_RESETHAND    0x80000000
+
+#define SA_NOMASK       SA_NODEFER
+#define SA_ONESHOT      SA_RESETHAND
+#define SA_INTERRUPT    0x20000000 /* dummy -- ignored */
+
+#define SA_RESTORER     0x04000000
+
+/*
+ * sigaltstack controls
+ */
+#define SS_ONSTACK      1
+#define SS_DISABLE      2
+
+#define MINSIGSTKSZ     2048
+#define SIGSTKSZ        8192
+
+#ifndef __ASSEMBLY__
+#ifdef __KERNEL__
+
+/*
+ * These values of sa_flags are used only by the kernel as part of the
+ * irq handling routines.
+ *
+ * SA_INTERRUPT is also used by the irq handling routines.
+ * SA_SHIRQ is for shared interrupt support on PCI and EISA.
+ */
+#define SA_PROBE                SA_ONESHOT
+#define SA_SAMPLE_RANDOM        SA_RESTART
+#define SA_SHIRQ                0x04000000
+#endif
+
+#define SIG_BLOCK          0    /* for blocking signals */
+#define SIG_UNBLOCK        1    /* for unblocking signals */
+#define SIG_SETMASK        2    /* for setting the signal mask */
+
+/* Type of a signal handler.  */
+typedef void (*__sighandler_t)(int);
+
+#define SIG_DFL ((__sighandler_t)0)     /* default signal handling */
+#define SIG_IGN ((__sighandler_t)1)     /* ignore signal */
+#define SIG_ERR ((__sighandler_t)-1)    /* error return from signal */
+
+#ifdef __KERNEL__
+struct old_sigaction {
+        __sighandler_t sa_handler;
+        old_sigset_t sa_mask;
+        unsigned long sa_flags;
+        void (*sa_restorer)(void);
+};
+
+struct sigaction {
+        __sighandler_t sa_handler;
+        unsigned long sa_flags;
+        void (*sa_restorer)(void);
+        sigset_t sa_mask;               /* mask last for extensibility */
+};
+
+struct k_sigaction {
+        struct sigaction sa;
+};
+
+#else
+
+/* Here we must cater to libcs that poke about in kernel headers.  */
+
+struct sigaction {
+        union {
+          __sighandler_t _sa_handler;
+          void (*_sa_sigaction)(int, struct siginfo *, void *);
+        } _u;
+        sigset_t sa_mask;
+        unsigned long sa_flags;
+        void (*sa_restorer)(void);
+};
+
+#define sa_handler      _u._sa_handler
+#define sa_sigaction    _u._sa_sigaction
+
+#endif /* __KERNEL__ */
+
+typedef struct sigaltstack {
+        void *ss_sp;
+        int ss_flags;
+        size_t ss_size;
+} stack_t;
+
+#ifdef __KERNEL__
+#include <asm/sigcontext.h>
+#define ptrace_signal_deliver(regs, cookie) do { } while (0)
+
+#endif  /* __KERNEL__ */
+#endif  /* __ASSEMBLY__ */
+#endif  /* _XTENSA_SIGNAL_H */
diff --git a/include/asm-xtensa/smp.h b/include/asm-xtensa/smp.h
new file mode 100644
index 000000000000..83c569e3bdbd
--- /dev/null
+++ b/include/asm-xtensa/smp.h
@@ -0,0 +1,27 @@
+/*
+ * include/asm-xtensa/smp.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_SMP_H
+#define _XTENSA_SMP_H
+
+extern struct xtensa_cpuinfo boot_cpu_data;
+
+#define cpu_data (&boot_cpu_data)
+#define current_cpu_data boot_cpu_data
+
+struct xtensa_cpuinfo {
+        unsigned long   *pgd_cache;
+        unsigned long   *pte_cache;
+        unsigned long   pgtable_cache_sz;
+};
+
+#define cpu_logical_map(cpu)    (cpu)
+
+#endif  /* _XTENSA_SMP_H */
diff --git a/include/asm-xtensa/socket.h b/include/asm-xtensa/socket.h
new file mode 100644
index 000000000000..daccd05a14cd
--- /dev/null
+++ b/include/asm-xtensa/socket.h
@@ -0,0 +1,61 @@
+/*
+ * include/asm-xtensa/socket.h
+ *
+ * Copied from i386.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _XTENSA_SOCKET_H
+#define _XTENSA_SOCKET_H
+
+#include <asm/sockios.h>
+
+/* For setsockoptions(2) */
+#define SOL_SOCKET      1
+
+#define SO_DEBUG        1
+#define SO_REUSEADDR    2
+#define SO_TYPE         3
+#define SO_ERROR        4
+#define SO_DONTROUTE    5
+#define SO_BROADCAST    6
+#define SO_SNDBUF       7
+#define SO_RCVBUF       8
+#define SO_KEEPALIVE    9
+#define SO_OOBINLINE    10
+#define SO_NO_CHECK     11
+#define SO_PRIORITY     12
+#define SO_LINGER       13
+#define SO_BSDCOMPAT    14
+/* To add :#define SO_REUSEPORT 15 */
+#define SO_PASSCRED     16
+#define SO_PEERCRED     17
+#define SO_RCVLOWAT     18
+#define SO_SNDLOWAT     19
+#define SO_RCVTIMEO     20
+#define SO_SNDTIMEO     21
+
+/* Security levels - as per NRL IPv6 - don't actually do anything */
+
+#define SO_SECURITY_AUTHENTICATION              22
+#define SO_SECURITY_ENCRYPTION_TRANSPORT        23
+#define SO_SECURITY_ENCRYPTION_NETWORK          24
+
+#define SO_BINDTODEVICE 25
+
+/* Socket filtering */
+
+#define SO_ATTACH_FILTER        26
+#define SO_DETACH_FILTER        27
+
+#define SO_PEERNAME             28
+#define SO_TIMESTAMP            29
+#define SCM_TIMESTAMP           SO_TIMESTAMP
+
+#define SO_ACCEPTCONN           30
+#define SO_PEERSEC              31
+
+#endif  /* _XTENSA_SOCKET_H */
diff --git a/include/asm-xtensa/sockios.h b/include/asm-xtensa/sockios.h
new file mode 100644
index 000000000000..20d2ba10ecd1
--- /dev/null
+++ b/include/asm-xtensa/sockios.h
@@ -0,0 +1,30 @@
+/*
+ * include/asm-xtensa/sockios.h
+ *
+ * Socket-level I/O control calls.  Copied from MIPS.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1995 by Ralf Baechle
+ * Copyright (C) 2001 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_SOCKIOS_H
+#define _XTENSA_SOCKIOS_H
+
+#include <asm/ioctl.h>
+
+/* Socket-level I/O control calls. */
+
+#define FIOGETOWN       _IOR('f', 123, int)
+#define FIOSETOWN       _IOW('f', 124, int)
+
+#define SIOCATMARK      _IOR('s', 7, int)
+#define SIOCSPGRP       _IOW('s', 8, pid_t)
+#define SIOCGPGRP       _IOR('s', 9, pid_t)
+
+#define SIOCGSTAMP      0x8906          /* Get stamp - linux-specific */
+
+#endif  /* _XTENSA_SOCKIOS_H */
diff --git a/include/asm-xtensa/spinlock.h b/include/asm-xtensa/spinlock.h
new file mode 100644
index 000000000000..8ff23649581b
--- /dev/null
+++ b/include/asm-xtensa/spinlock.h
@@ -0,0 +1,16 @@
+/*
+ * include/asm-xtensa/spinlock.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_SPINLOCK_H
+#define _XTENSA_SPINLOCK_H
+
+#include <linux/spinlock.h>
+
+#endif  /* _XTENSA_SPINLOCK_H */
diff --git a/include/asm-xtensa/stat.h b/include/asm-xtensa/stat.h
new file mode 100644
index 000000000000..2f4662ff6c3a
--- /dev/null
+++ b/include/asm-xtensa/stat.h
@@ -0,0 +1,105 @@
+/*
+ * include/asm-xtensa/stat.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_STAT_H
+#define _XTENSA_STAT_H
+
+#include <linux/types.h>
+
+struct __old_kernel_stat {
+        unsigned short st_dev;
+        unsigned short st_ino;
+        unsigned short st_mode;
+        unsigned short st_nlink;
+        unsigned short st_uid;
+        unsigned short st_gid;
+        unsigned short st_rdev;
+        unsigned long  st_size;
+        unsigned long  st_atime;
+        unsigned long  st_mtime;
+        unsigned long  st_ctime;
+};
+
+#define STAT_HAVE_NSEC 1
+
+struct stat {
+        unsigned short st_dev;
+        unsigned short __pad1;
+        unsigned long st_ino;
+        unsigned short st_mode;
+        unsigned short st_nlink;
+        unsigned short st_uid;
+        unsigned short st_gid;
+        unsigned short st_rdev;
+        unsigned short __pad2;
+        unsigned long  st_size;
+        unsigned long  st_blksize;
+        unsigned long  st_blocks;
+        unsigned long  st_atime;
+        unsigned long  st_atime_nsec;
+        unsigned long  st_mtime;
+        unsigned long  st_mtime_nsec;
+        unsigned long  st_ctime;
+        unsigned long  st_ctime_nsec;
+        unsigned long  __unused4;
+        unsigned long  __unused5;
+};
+
+/* This matches struct stat64 in glibc-2.2.3. */
+
+struct stat64  {
+#ifdef __XTENSA_EL__
+        unsigned short  st_dev;         /* Device */
+        unsigned char   __pad0[10];
+#else
+        unsigned char   __pad0[6];
+        unsigned short  st_dev;
+        unsigned char   __pad1[2];
+#endif
+
+#define STAT64_HAS_BROKEN_ST_INO        1
+        unsigned long __st_ino;         /* 32bit file serial number. */
+
+        unsigned int  st_mode;          /* File mode. */
+        unsigned int  st_nlink;         /* Link count. */
+        unsigned int  st_uid;           /* User ID of the file's owner. */
+        unsigned int  st_gid;           /* Group ID of the file's group. */
+
+#ifdef __XTENSA_EL__
+        unsigned short  st_rdev;        /* Device number, if device. */
+        unsigned char   __pad3[10];
+#else
+        unsigned char   __pad2[6];
+        unsigned short  st_rdev;
+        unsigned char   __pad3[2];
+#endif
+
+        long long int  st_size;         /* Size of file, in bytes. */
+        long int st_blksize;            /* Optimal block size for I/O. */
+
+#ifdef __XTENSA_EL__
+        unsigned long  st_blocks;       /* Number 512-byte blocks allocated. */
+        unsigned long  __pad4;
+#else
+        unsigned long  __pad4;
+        unsigned long  st_blocks;
+#endif
+
+        unsigned long  __pad5;
+        long int st_atime;              /* Time of last access. */
+        unsigned long  st_atime_nsec;
+        long int st_mtime;              /* Time of last modification. */
+        unsigned long  st_mtime_nsec;
+        long int  st_ctime;             /* Time of last status change. */
+        unsigned long  st_ctime_nsec;
+        unsigned long long int st_ino;  /* File serial number. */
+};
+
+#endif  /* _XTENSA_STAT_H */
diff --git a/include/asm-xtensa/statfs.h b/include/asm-xtensa/statfs.h
new file mode 100644
index 000000000000..9c3d1a213136
--- /dev/null
+++ b/include/asm-xtensa/statfs.h
@@ -0,0 +1,17 @@
+/*
+ * include/asm-xtensa/statfs.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_STATFS_H
+#define _XTENSA_STATFS_H
+
+#include <asm-generic/statfs.h>
+
+#endif  /* _XTENSA_STATFS_H */
+
diff --git a/include/asm-xtensa/string.h b/include/asm-xtensa/string.h
new file mode 100644
index 000000000000..3f81b27d9809
--- /dev/null
+++ b/include/asm-xtensa/string.h
@@ -0,0 +1,124 @@
+/*
+ * include/asm-xtensa/string.h
+ *
+ * These trivial string functions are considered part of the public domain.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+/* We should optimize these. See arch/xtensa/lib/strncpy_user.S */
+
+#ifndef _XTENSA_STRING_H
+#define _XTENSA_STRING_H
+
+#define __HAVE_ARCH_STRCPY
+extern __inline__ char *strcpy(char *__dest, const char *__src)
+{
+        register char *__xdest = __dest;
+        unsigned long __dummy;
+
+        __asm__ __volatile__("1:\n\t"
+                "l8ui   %2, %1, 0\n\t"
+                "s8i    %2, %0, 0\n\t"
+                "addi   %1, %1, 1\n\t"
+                "addi   %0, %0, 1\n\t"
+                "bnez   %2, 1b\n\t"
+                : "=r" (__dest), "=r" (__src), "=&r" (__dummy)
+                : "0" (__dest), "1" (__src)
+                : "memory");
+
+        return __xdest;
+}
+
+#define __HAVE_ARCH_STRNCPY
+extern __inline__ char *strncpy(char *__dest, const char *__src, size_t __n)
+{
+        register char *__xdest = __dest;
+        unsigned long __dummy;
+
+        if (__n == 0)
+                return __xdest;
+
+        __asm__ __volatile__(
+                "1:\n\t"
+                "l8ui   %2, %1, 0\n\t"
+                "s8i    %2, %0, 0\n\t"
+                "addi   %1, %1, 1\n\t"
+                "addi   %0, %0, 1\n\t"
+                "beqz   %2, 2f\n\t"
+                "bne    %1, %5, 1b\n"
+                "2:"
+                : "=r" (__dest), "=r" (__src), "=&r" (__dummy)
+                : "0" (__dest), "1" (__src), "r" (__src+__n)
+                : "memory");
+
+        return __xdest;
+}
+
+#define __HAVE_ARCH_STRCMP
+extern __inline__ int strcmp(const char *__cs, const char *__ct)
+{
+        register int __res;
+        unsigned long __dummy;
+
+        __asm__ __volatile__(
+                "1:\n\t"
+                "l8ui   %3, %1, 0\n\t"
+                "addi   %1, %1, 1\n\t"
+                "l8ui   %2, %0, 0\n\t"
+                "addi   %0, %0, 1\n\t"
+                "beqz   %2, 2f\n\t"
+                "beq    %2, %3, 1b\n"
+                "2:\n\t"
+                "sub    %2, %3, %2"
+                : "=r" (__cs), "=r" (__ct), "=&r" (__res), "=&r" (__dummy)
+                : "0" (__cs), "1" (__ct));
+
+        return __res;
+}
+
+#define __HAVE_ARCH_STRNCMP
+extern __inline__ int strncmp(const char *__cs, const char *__ct, size_t __n)
+{
+        register int __res;
+        unsigned long __dummy;
+
+        __asm__ __volatile__(
+                "mov    %2, %3\n"
+                "1:\n\t"
+                "beq    %0, %6, 2f\n\t"
+                "l8ui   %3, %1, 0\n\t"
+                "addi   %1, %1, 1\n\t"
+                "l8ui   %2, %0, 0\n\t"
+                "addi   %0, %0, 1\n\t"
+                "beqz   %2, 2f\n\t"
+                "beqz   %3, 2f\n\t"
+                "beq    %2, %3, 1b\n"
+                "2:\n\t"
+                "sub    %2, %3, %2"
+                : "=r" (__cs), "=r" (__ct), "=&r" (__res), "=&r" (__dummy)
+                : "0" (__cs), "1" (__ct), "r" (__cs+__n));
+
+        return __res;
+}
+
+#define __HAVE_ARCH_MEMSET
+extern void *memset(void *__s, int __c, size_t __count);
+
+#define __HAVE_ARCH_MEMCPY
+extern void *memcpy(void *__to, __const__ void *__from, size_t __n);
+
+#define __HAVE_ARCH_MEMMOVE
+extern void *memmove(void *__dest, __const__ void *__src, size_t __n);
+
+/* Don't build bcopy at all ...  */
+#define __HAVE_ARCH_BCOPY
+
+#define __HAVE_ARCH_MEMSCAN
+#define memscan memchr
+
+#endif  /* _XTENSA_STRING_H */
diff --git a/include/asm-xtensa/system.h b/include/asm-xtensa/system.h
new file mode 100644
index 000000000000..690fe325e671
--- /dev/null
+++ b/include/asm-xtensa/system.h
@@ -0,0 +1,252 @@
+/*
+ * include/asm-xtensa/system.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_SYSTEM_H
+#define _XTENSA_SYSTEM_H
+
+#include <linux/config.h>
+#include <linux/stringify.h>
+
+#include <asm/processor.h>
+
+/* interrupt control */
+
+#define local_save_flags(x)                                             \
+        __asm__ __volatile__ ("rsr %0,"__stringify(PS) : "=a" (x));
+#define local_irq_restore(x)    do {                                    \
+        __asm__ __volatile__ ("wsr %0, "__stringify(PS)" ; rsync"       \
+                              :: "a" (x) : "memory"); } while(0);
+#define local_irq_save(x)       do {                                    \
+        __asm__ __volatile__ ("rsil %0, "__stringify(LOCKLEVEL)         \
+                              : "=a" (x) :: "memory");} while(0);
+
+static inline void local_irq_disable(void)
+{
+        unsigned long flags;
+        __asm__ __volatile__ ("rsil %0, "__stringify(LOCKLEVEL)
+                              : "=a" (flags) :: "memory");
+}
+static inline void local_irq_enable(void)
+{
+        unsigned long flags;
+        __asm__ __volatile__ ("rsil %0, 0" : "=a" (flags) :: "memory");
+
+}
+
+static inline int irqs_disabled(void)
+{
+        unsigned long flags;
+        local_save_flags(flags);
+        return flags & 0xf;
+}
+
+#define RSR_CPENABLE(x) do {                                              \
+        __asm__ __volatile__("rsr %0," __stringify(CPENABLE) : "=a" (x)); \
+        } while(0);
+#define WSR_CPENABLE(x) do {                                              \
+        __asm__ __volatile__("wsr %0," __stringify(CPENABLE)";rsync"      \
+                             :: "a" (x));} while(0);
+
+#define clear_cpenable() __clear_cpenable()
+
+extern __inline__ void __clear_cpenable(void)
+{
+#if XCHAL_HAVE_CP
+        unsigned long i = 0;
+        WSR_CPENABLE(i);
+#endif
+}
+
+extern __inline__ void enable_coprocessor(int i)
+{
+#if XCHAL_HAVE_CP
+        int cp;
+        RSR_CPENABLE(cp);
+        cp |= 1 << i;
+        WSR_CPENABLE(cp);
+#endif
+}
+
+extern __inline__ void disable_coprocessor(int i)
+{
+#if XCHAL_HAVE_CP
+        int cp;
+        RSR_CPENABLE(cp);
+        cp &= ~(1 << i);
+        WSR_CPENABLE(cp);
+#endif
+}
+
+#define smp_read_barrier_depends() do { } while(0)
+#define read_barrier_depends() do { } while(0)
+
+#define mb()  barrier()
+#define rmb() mb()
+#define wmb() mb()
+
+#ifdef CONFIG_SMP
+#error smp_* not defined
+#else
+#define smp_mb()        barrier()
+#define smp_rmb()       barrier()
+#define smp_wmb()       barrier()
+#endif
+
+#define set_mb(var, value)      do { var = value; mb(); } while (0)
+#define set_wmb(var, value)     do { var = value; wmb(); } while (0)
+
+#if !defined (__ASSEMBLY__)
+
+/* * switch_to(n) should switch tasks to task nr n, first
+ * checking that n isn't the current task, in which case it does nothing.
+ */
+extern void *_switch_to(void *last, void *next);
+
+#endif  /* __ASSEMBLY__ */
+
+#define prepare_to_switch()     do { } while(0)
+
+#define switch_to(prev,next,last)               \
+do {                                            \
+        clear_cpenable();                       \
+        (last) = _switch_to(prev, next);        \
+} while(0)
+
+/*
+ * cmpxchg
+ */
+
+extern __inline__ unsigned long
+__cmpxchg_u32(volatile int *p, int old, int new)
+{
+  __asm__ __volatile__("rsil    a15, "__stringify(LOCKLEVEL)"\n\t"
+                       "l32i    %0, %1, 0              \n\t"
+                       "bne     %0, %2, 1f             \n\t"
+                       "s32i    %3, %1, 0              \n\t"
+                       "1:                             \n\t"
+                       "wsr     a15, "__stringify(PS)" \n\t"
+                       "rsync                          \n\t"
+                       : "=&a" (old)
+                       : "a" (p), "a" (old), "r" (new)
+                       : "a15", "memory");
+  return old;
+}
+/* This function doesn't exist, so you'll get a linker error
+ * if something tries to do an invalid cmpxchg(). */
+
+extern void __cmpxchg_called_with_bad_pointer(void);
+
+static __inline__ unsigned long
+__cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
+{
+        switch (size) {
+        case 4:  return __cmpxchg_u32(ptr, old, new);
+        default: __cmpxchg_called_with_bad_pointer();
+                 return old;
+        }
+}
+
+#define cmpxchg(ptr,o,n)                                                      \
+        ({ __typeof__(*(ptr)) _o_ = (o);                                      \
+           __typeof__(*(ptr)) _n_ = (n);                                      \
+           (__typeof__(*(ptr))) __cmpxchg((ptr), (unsigned long)_o_,          \
+                                        (unsigned long)_n_, sizeof (*(ptr))); \
+        })
+
+
+
+
+/*
+ * xchg_u32
+ *
+ * Note that a15 is used here because the register allocation
+ * done by the compiler is not guaranteed and a window overflow
+ * may not occur between the rsil and wsr instructions. By using
+ * a15 in the rsil, the machine is guaranteed to be in a state
+ * where no register reference will cause an overflow.
+ */
+
+extern __inline__ unsigned long xchg_u32(volatile int * m, unsigned long val)
+{
+  unsigned long tmp;
+  __asm__ __volatile__("rsil    a15, "__stringify(LOCKLEVEL)"\n\t"
+                       "l32i    %0, %1, 0              \n\t"
+                       "s32i    %2, %1, 0              \n\t"
+                       "wsr     a15, "__stringify(PS)" \n\t"
+                       "rsync                          \n\t"
+                       : "=&a" (tmp)
+                       : "a" (m), "a" (val)
+                       : "a15", "memory");
+  return tmp;
+}
+
+#define tas(ptr) (xchg((ptr),1))
+
+#if ( __XCC__ == 1 )
+
+/* xt-xcc processes __inline__ differently than xt-gcc and decides to
+ * insert an out-of-line copy of function __xchg.  This presents the
+ * unresolved symbol at link time of __xchg_called_with_bad_pointer,
+ * even though such a function would never be called at run-time.
+ * xt-gcc always inlines __xchg, and optimizes away the undefined
+ * bad_pointer function.
+ */
+
+#define xchg(ptr,x) xchg_u32(ptr,x)
+
+#else  /* assume xt-gcc */
+
+#define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
+
+/*
+ * This only works if the compiler isn't horribly bad at optimizing.
+ * gcc-2.5.8 reportedly can't handle this, but I define that one to
+ * be dead anyway.
+ */
+
+extern void __xchg_called_with_bad_pointer(void);
+
+static __inline__ unsigned long
+__xchg(unsigned long x, volatile void * ptr, int size)
+{
+        switch (size) {
+                case 4:
+                        return xchg_u32(ptr, x);
+        }
+        __xchg_called_with_bad_pointer();
+        return x;
+}
+
+#endif
+
+extern void set_except_vector(int n, void *addr);
+
+static inline void spill_registers(void)
+{
+        unsigned int a0, ps;
+
+        __asm__ __volatile__ (
+                "movi   a14," __stringify (PS_EXCM_MASK) " | 1\n\t"
+                "mov    a12, a0\n\t"
+                "rsr    a13," __stringify(SAR) "\n\t"
+                "xsr    a14," __stringify(PS) "\n\t"
+                "movi   a0, _spill_registers\n\t"
+                "rsync\n\t"
+                "callx0 a0\n\t"
+                "mov    a0, a12\n\t"
+                "wsr    a13," __stringify(SAR) "\n\t"
+                "wsr    a14," __stringify(PS) "\n\t"
+                :: "a" (&a0), "a" (&ps)
+                : "a2", "a3", "a12", "a13", "a14", "a15", "memory");
+}
+
+#define arch_align_stack(x) (x)
+
+#endif  /* _XTENSA_SYSTEM_H */
diff --git a/include/asm-xtensa/termbits.h b/include/asm-xtensa/termbits.h
new file mode 100644
index 000000000000..c780593ff5f9
--- /dev/null
+++ b/include/asm-xtensa/termbits.h
@@ -0,0 +1,194 @@
+/*
+ * include/asm-xtensa/termbits.h
+ *
+ * Copied from SH.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_TERMBITS_H
+#define _XTENSA_TERMBITS_H
+
+
+#include <linux/posix_types.h>
+
+typedef unsigned char   cc_t;
+typedef unsigned int    speed_t;
+typedef unsigned int    tcflag_t;
+
+#define NCCS 19
+struct termios {
+        tcflag_t c_iflag;               /* input mode flags */
+        tcflag_t c_oflag;               /* output mode flags */
+        tcflag_t c_cflag;               /* control mode flags */
+        tcflag_t c_lflag;               /* local mode flags */
+        cc_t c_line;                    /* line discipline */
+        cc_t c_cc[NCCS];                /* control characters */
+};
+
+/* c_cc characters */
+
+#define VINTR 0
+#define VQUIT 1
+#define VERASE 2
+#define VKILL 3
+#define VEOF 4
+#define VTIME 5
+#define VMIN 6
+#define VSWTC 7
+#define VSTART 8
+#define VSTOP 9
+#define VSUSP 10
+#define VEOL 11
+#define VREPRINT 12
+#define VDISCARD 13
+#define VWERASE 14
+#define VLNEXT 15
+#define VEOL2 16
+
+/* c_iflag bits */
+
+#define IGNBRK  0000001
+#define BRKINT  0000002
+#define IGNPAR  0000004
+#define PARMRK  0000010
+#define INPCK   0000020
+#define ISTRIP  0000040
+#define INLCR   0000100
+#define IGNCR   0000200
+#define ICRNL   0000400
+#define IUCLC   0001000
+#define IXON    0002000
+#define IXANY   0004000
+#define IXOFF   0010000
+#define IMAXBEL 0020000
+#define IUTF8   0040000
+
+/* c_oflag bits */
+
+#define OPOST   0000001
+#define OLCUC   0000002
+#define ONLCR   0000004
+#define OCRNL   0000010
+#define ONOCR   0000020
+#define ONLRET  0000040
+#define OFILL   0000100
+#define OFDEL   0000200
+#define NLDLY   0000400
+#define   NL0   0000000
+#define   NL1   0000400
+#define CRDLY   0003000
+#define   CR0   0000000
+#define   CR1   0001000
+#define   CR2   0002000
+#define   CR3   0003000
+#define TABDLY  0014000
+#define   TAB0  0000000
+#define   TAB1  0004000
+#define   TAB2  0010000
+#define   TAB3  0014000
+#define   XTABS 0014000
+#define BSDLY   0020000
+#define   BS0   0000000
+#define   BS1   0020000
+#define VTDLY   0040000
+#define   VT0   0000000
+#define   VT1   0040000
+#define FFDLY   0100000
+#define   FF0   0000000
+#define   FF1   0100000
+
+/* c_cflag bit meaning */
+
+#define CBAUD   0010017
+#define  B0     0000000         /* hang up */
+#define  B50    0000001
+#define  B75    0000002
+#define  B110   0000003
+#define  B134   0000004
+#define  B150   0000005
+#define  B200   0000006
+#define  B300   0000007
+#define  B600   0000010
+#define  B1200  0000011
+#define  B1800  0000012
+#define  B2400  0000013
+#define  B4800  0000014
+#define  B9600  0000015
+#define  B19200 0000016
+#define  B38400 0000017
+#define EXTA B19200
+#define EXTB B38400
+#define CSIZE   0000060
+#define   CS5   0000000
+#define   CS6   0000020
+#define   CS7   0000040
+#define   CS8   0000060
+#define CSTOPB  0000100
+#define CREAD   0000200
+#define PARENB  0000400
+#define PARODD  0001000
+#define HUPCL   0002000
+#define CLOCAL  0004000
+#define CBAUDEX 0010000
+#define    B57600 0010001
+#define   B115200 0010002
+#define   B230400 0010003
+#define   B460800 0010004
+#define   B500000 0010005
+#define   B576000 0010006
+#define   B921600 0010007
+#define  B1000000 0010010
+#define  B1152000 0010011
+#define  B1500000 0010012
+#define  B2000000 0010013
+#define  B2500000 0010014
+#define  B3000000 0010015
+#define  B3500000 0010016
+#define  B4000000 0010017
+#define CIBAUD    002003600000  /* input baud rate (not used) */
+#define CMSPAR    010000000000          /* mark or space (stick) parity */
+#define CRTSCTS   020000000000          /* flow control */
+
+/* c_lflag bits */
+
+#define ISIG    0000001
+#define ICANON  0000002
+#define XCASE   0000004
+#define ECHO    0000010
+#define ECHOE   0000020
+#define ECHOK   0000040
+#define ECHONL  0000100
+#define NOFLSH  0000200
+#define TOSTOP  0000400
+#define ECHOCTL 0001000
+#define ECHOPRT 0002000
+#define ECHOKE  0004000
+#define FLUSHO  0010000
+#define PENDIN  0040000
+#define IEXTEN  0100000
+
+/* tcflow() and TCXONC use these */
+
+#define TCOOFF          0
+#define TCOON           1
+#define TCIOFF          2
+#define TCION           3
+
+/* tcflush() and TCFLSH use these */
+
+#define TCIFLUSH        0
+#define TCOFLUSH        1
+#define TCIOFLUSH       2
+
+/* tcsetattr uses these */
+
+#define TCSANOW         0
+#define TCSADRAIN       1
+#define TCSAFLUSH       2
+
+#endif  /* _XTENSA_TERMBITS_H */
diff --git a/include/asm-xtensa/termios.h b/include/asm-xtensa/termios.h
new file mode 100644
index 000000000000..83c6aed1d115
--- /dev/null
+++ b/include/asm-xtensa/termios.h
@@ -0,0 +1,122 @@
+/*
+ * include/asm-xtensa/termios.h
+ *
+ * Copied from SH.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_TERMIOS_H
+#define _XTENSA_TERMIOS_H
+
+#include <asm/termbits.h>
+#include <asm/ioctls.h>
+
+struct winsize {
+        unsigned short ws_row;
+        unsigned short ws_col;
+        unsigned short ws_xpixel;
+        unsigned short ws_ypixel;
+};
+
+#define NCC 8
+struct termio {
+        unsigned short c_iflag;         /* input mode flags */
+        unsigned short c_oflag;         /* output mode flags */
+        unsigned short c_cflag;         /* control mode flags */
+        unsigned short c_lflag;         /* local mode flags */
+        unsigned char c_line;           /* line discipline */
+        unsigned char c_cc[NCC];        /* control characters */
+};
+
+/* Modem lines */
+
+#define TIOCM_LE        0x001
+#define TIOCM_DTR       0x002
+#define TIOCM_RTS       0x004
+#define TIOCM_ST        0x008
+#define TIOCM_SR        0x010
+#define TIOCM_CTS       0x020
+#define TIOCM_CAR       0x040
+#define TIOCM_RNG       0x080
+#define TIOCM_DSR       0x100
+#define TIOCM_CD        TIOCM_CAR
+#define TIOCM_RI        TIOCM_RNG
+#define TIOCM_OUT1      0x2000
+#define TIOCM_OUT2      0x4000
+#define TIOCM_LOOP      0x8000
+
+/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
+
+/* Line disciplines */
+
+#define N_TTY           0
+#define N_SLIP          1
+#define N_MOUSE         2
+#define N_PPP           3
+#define N_STRIP         4
+#define N_AX25          5
+#define N_X25           6       /* X.25 async */
+#define N_6PACK         7
+#define N_MASC          8       /* Reserved for Mobitex module <kaz@cafe.net> */
+#define N_R3964         9       /* Reserved for Simatic R3964 module */
+#define N_PROFIBUS_FDL  10      /* Reserved for Profibus <Dave@mvhi.com> */
+#define N_IRDA          11      /* Linux IR - http://irda.sourceforge.net/ */
+#define N_SMSBLOCK      12      /* SMS block mode - for talking to GSM data cards about SMS messages */
+#define N_HDLC          13      /* synchronous HDLC */
+#define N_SYNC_PPP      14
+#define N_HCI           15      /* Bluetooth HCI UART */
+
+#ifdef __KERNEL__
+
+/*      intr=^C         quit=^\         erase=del       kill=^U
+        eof=^D          vtime=\0        vmin=\1         sxtc=\0
+        start=^Q        stop=^S         susp=^Z         eol=\0
+        reprint=^R      discard=^U      werase=^W       lnext=^V
+        eol2=\0
+*/
+#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0"
+
+/*
+ * Translate a "termio" structure into a "termios". Ugh.
+ */
+
+#define SET_LOW_TERMIOS_BITS(termios, termio, x) { \
+        unsigned short __tmp; \
+        get_user(__tmp,&(termio)->x); \
+        *(unsigned short *) &(termios)->x = __tmp; \
+}
+
+#define user_termio_to_kernel_termios(termios, termio) \
+({ \
+        SET_LOW_TERMIOS_BITS(termios, termio, c_iflag); \
+        SET_LOW_TERMIOS_BITS(termios, termio, c_oflag); \
+        SET_LOW_TERMIOS_BITS(termios, termio, c_cflag); \
+        SET_LOW_TERMIOS_BITS(termios, termio, c_lflag); \
+        copy_from_user((termios)->c_cc, (termio)->c_cc, NCC); \
+})
+
+/*
+ * Translate a "termios" structure into a "termio". Ugh.
+ */
+
+#define kernel_termios_to_user_termio(termio, termios) \
+({ \
+        put_user((termios)->c_iflag, &(termio)->c_iflag); \
+        put_user((termios)->c_oflag, &(termio)->c_oflag); \
+        put_user((termios)->c_cflag, &(termio)->c_cflag); \
+        put_user((termios)->c_lflag, &(termio)->c_lflag); \
+        put_user((termios)->c_line,  &(termio)->c_line); \
+        copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \
+})
+
+#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios))
+#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios))
+
+#endif  /* __KERNEL__ */
+
+#endif  /* _XTENSA_TERMIOS_H */
diff --git a/include/asm-xtensa/thread_info.h b/include/asm-xtensa/thread_info.h
new file mode 100644
index 000000000000..af208d41fd82
--- /dev/null
+++ b/include/asm-xtensa/thread_info.h
@@ -0,0 +1,146 @@
+/*
+ * include/asm-xtensa/thread_info.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_THREAD_INFO_H
+#define _XTENSA_THREAD_INFO_H
+
+#ifdef __KERNEL__
+
+#ifndef __ASSEMBLY__
+# include <asm/processor.h>
+#endif
+
+/*
+ * low level task data that entry.S needs immediate access to
+ * - this struct should fit entirely inside of one cache line
+ * - this struct shares the supervisor stack pages
+ * - if the contents of this structure are changed, the assembly constants
+ *   must also be changed
+ */
+
+#ifndef __ASSEMBLY__
+
+struct thread_info {
+        struct task_struct      *task;          /* main task structure */
+        struct exec_domain      *exec_domain;   /* execution domain */
+        unsigned long           flags;          /* low level flags */
+        unsigned long           status;         /* thread-synchronous flags */
+        __u32                   cpu;            /* current CPU */
+        __s32                   preempt_count;  /* 0 => preemptable,< 0 => BUG*/
+
+        mm_segment_t            addr_limit;     /* thread address space */
+        struct restart_block    restart_block;
+
+
+};
+
+#else /* !__ASSEMBLY__ */
+
+/* offsets into the thread_info struct for assembly code access */
+#define TI_TASK          0x00000000
+#define TI_EXEC_DOMAIN   0x00000004
+#define TI_FLAGS         0x00000008
+#define TI_STATUS        0x0000000C
+#define TI_CPU           0x00000010
+#define TI_PRE_COUNT     0x00000014
+#define TI_ADDR_LIMIT    0x00000018
+#define TI_RESTART_BLOCK 0x000001C
+
+#endif
+
+#define PREEMPT_ACTIVE          0x10000000
+
+/*
+ * macros/functions for gaining access to the thread information structure
+ *
+ * preempt_count needs to be 1 initially, until the scheduler is functional.
+ */
+
+#ifndef __ASSEMBLY__
+
+#define INIT_THREAD_INFO(tsk)                   \
+{                                               \
+        .task           = &tsk,                 \
+        .exec_domain    = &default_exec_domain, \
+        .flags          = 0,                    \
+        .cpu            = 0,                    \
+        .preempt_count  = 1,                    \
+        .addr_limit     = KERNEL_DS,            \
+        .restart_block = {                      \
+                .fn = do_no_restart_syscall,    \
+        },                                      \
+}
+
+#define init_thread_info        (init_thread_union.thread_info)
+#define init_stack              (init_thread_union.stack)
+
+/* how to get the thread information struct from C */
+static inline struct thread_info *current_thread_info(void)
+{
+        struct thread_info *ti;
+         __asm__("extui %0,a1,0,13\n\t"
+                 "xor %0, a1, %0" : "=&r" (ti) : );
+        return ti;
+}
+
+/* thread information allocation */
+#define alloc_thread_info(tsk) ((struct thread_info *) __get_free_pages(GFP_KERNEL,1))
+#define free_thread_info(ti) free_pages((unsigned long) (ti), 1)
+#define get_thread_info(ti) get_task_struct((ti)->task)
+#define put_thread_info(ti) put_task_struct((ti)->task)
+
+#else /* !__ASSEMBLY__ */
+
+/* how to get the thread information struct from ASM */
+#define GET_THREAD_INFO(reg,sp) \
+        extui reg, sp, 0, 13; \
+        xor   reg, sp, reg
+#endif
+
+
+/*
+ * thread information flags
+ * - these are process state flags that various assembly files may need to access
+ * - pending work-to-be-done flags are in LSW
+ * - other flags in MSW
+ */
+#define TIF_SYSCALL_TRACE       0       /* syscall trace active */
+#define TIF_NOTIFY_RESUME       1       /* resumption notification requested */
+#define TIF_SIGPENDING          2       /* signal pending */
+#define TIF_NEED_RESCHED        3       /* rescheduling necessary */
+#define TIF_SINGLESTEP          4       /* restore singlestep on return to user mode */
+#define TIF_IRET                5       /* return with iret */
+#define TIF_MEMDIE              6
+#define TIF_POLLING_NRFLAG      16      /* true if poll_idle() is polling TIF_NEED_RESCHED */
+
+#define _TIF_SYSCALL_TRACE      (1<<TIF_SYSCALL_TRACE)
+#define _TIF_NOTIFY_RESUME      (1<<TIF_NOTIFY_RESUME)
+#define _TIF_SIGPENDING         (1<<TIF_SIGPENDING)
+#define _TIF_NEED_RESCHED       (1<<TIF_NEED_RESCHED)
+#define _TIF_SINGLESTEP         (1<<TIF_SINGLESTEP)
+#define _TIF_IRET               (1<<TIF_IRET)
+#define _TIF_POLLING_NRFLAG     (1<<TIF_POLLING_NRFLAG)
+
+#define _TIF_WORK_MASK          0x0000FFFE      /* work to do on interrupt/exception return */
+#define _TIF_ALLWORK_MASK       0x0000FFFF      /* work to do on any return to u-space */
+
+/*
+ * Thread-synchronous status.
+ *
+ * This is different from the flags in that nobody else
+ * ever touches our thread-synchronous status, so we don't
+ * have to worry about atomic accesses.
+ */
+#define TS_USEDFPU              0x0001  /* FPU was used by this task this quantum (SMP) */
+
+#define THREAD_SIZE 8192        //(2*PAGE_SIZE)
+
+#endif  /* __KERNEL__ */
+#endif  /* _XTENSA_THREAD_INFO */
diff --git a/include/asm-xtensa/timex.h b/include/asm-xtensa/timex.h
new file mode 100644
index 000000000000..d14a3755a12b
--- /dev/null
+++ b/include/asm-xtensa/timex.h
@@ -0,0 +1,94 @@
+/*
+ * include/asm-xtensa/timex.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_TIMEX_H
+#define _XTENSA_TIMEX_H
+
+#ifdef __KERNEL__
+
+#include <asm/processor.h>
+#include <linux/stringify.h>
+
+#if XCHAL_INT_LEVEL(XCHAL_TIMER0_INTERRUPT) == 1
+# define LINUX_TIMER     0
+#elif XCHAL_INT_LEVEL(XCHAL_TIMER1_INTERRUPT) == 1
+# define LINUX_TIMER     1
+#elif XCHAL_INT_LEVEL(XCHAL_TIMER2_INTERRUPT) == 1
+# define LINUX_TIMER     2
+#else
+# error "Bad timer number for Linux configurations!"
+#endif
+
+#define LINUX_TIMER_INT         XCHAL_TIMER_INTERRUPT(LINUX_TIMER)
+#define LINUX_TIMER_MASK        (1L << LINUX_TIMER_INT)
+
+#define CLOCK_TICK_RATE         1193180 /* (everyone is using this value) */
+#define CLOCK_TICK_FACTOR       20 /* Factor of both 10^6 and CLOCK_TICK_RATE */
+#define FINETUNE ((((((long)LATCH * HZ - CLOCK_TICK_RATE) << SHIFT_HZ) * \
+        (1000000/CLOCK_TICK_FACTOR) / (CLOCK_TICK_RATE/CLOCK_TICK_FACTOR)) \
+                << (SHIFT_SCALE-SHIFT_HZ)) / HZ)
+
+#ifdef CONFIG_XTENSA_CALIBRATE_CCOUNT
+extern unsigned long ccount_per_jiffy;
+extern unsigned long ccount_nsec;
+#define CCOUNT_PER_JIFFY ccount_per_jiffy
+#define CCOUNT_NSEC ccount_nsec
+#else
+#define CCOUNT_PER_JIFFY (CONFIG_XTENSA_CPU_CLOCK*(1000000UL/HZ))
+#define CCOUNT_NSEC (1000000000UL / CONFIG_XTENSA_CPU_CLOCK)
+#endif
+
+
+typedef unsigned long long cycles_t;
+
+/*
+ * Only used for SMP.
+ */
+
+extern cycles_t cacheflush_time;
+
+#define get_cycles()    (0)
+
+
+/*
+ * Register access.
+ */
+
+#define WSR_CCOUNT(r)     __asm__("wsr %0,"__stringify(CCOUNT) :: "a" (r))
+#define RSR_CCOUNT(r)     __asm__("rsr %0,"__stringify(CCOUNT) : "=a" (r))
+#define WSR_CCOMPARE(x,r) __asm__("wsr %0,"__stringify(CCOMPARE_0)"+"__stringify(x) :: "a"(r))
+#define RSR_CCOMPARE(x,r) __asm__("rsr %0,"__stringify(CCOMPARE_0)"+"__stringify(x) : "=a"(r))
+
+static inline unsigned long get_ccount (void)
+{
+        unsigned long ccount;
+        RSR_CCOUNT(ccount);
+        return ccount;
+}
+
+static inline void set_ccount (unsigned long ccount)
+{
+        WSR_CCOUNT(ccount);
+}
+
+static inline unsigned long get_linux_timer (void)
+{
+        unsigned ccompare;
+        RSR_CCOMPARE(LINUX_TIMER, ccompare);
+        return ccompare;
+}
+
+static inline void set_linux_timer (unsigned long ccompare)
+{
+        WSR_CCOMPARE(LINUX_TIMER, ccompare);
+}
+
+#endif  /* __KERNEL__ */
+#endif  /* _XTENSA_TIMEX_H */
diff --git a/include/asm-xtensa/tlb.h b/include/asm-xtensa/tlb.h
new file mode 100644
index 000000000000..4562b2dcfbc0
--- /dev/null
+++ b/include/asm-xtensa/tlb.h
@@ -0,0 +1,25 @@
+/*
+ * include/asm-xtensa/tlb.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_TLB_H
+#define _XTENSA_TLB_H
+
+#define tlb_start_vma(tlb,vma)                  do { } while (0)
+#define tlb_end_vma(tlb,vma)                    do { } while (0)
+#define __tlb_remove_tlb_entry(tlb,pte,addr)    do { } while (0)
+
+#define tlb_flush(tlb)                          flush_tlb_mm((tlb)->mm)
+
+#include <asm-generic/tlb.h>
+#include <asm/page.h>
+
+#define __pte_free_tlb(tlb,pte)                 pte_free(pte)
+
+#endif  /* _XTENSA_TLB_H */
diff --git a/include/asm-xtensa/tlbflush.h b/include/asm-xtensa/tlbflush.h
new file mode 100644
index 000000000000..23bfe9db45f5
--- /dev/null
+++ b/include/asm-xtensa/tlbflush.h
@@ -0,0 +1,200 @@
+/*
+ * include/asm-xtensa/tlbflush.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_TLBFLUSH_H
+#define _XTENSA_TLBFLUSH_H
+
+#define DEBUG_TLB
+
+#ifdef __KERNEL__
+
+#include <asm/processor.h>
+#include <linux/stringify.h>
+
+/* TLB flushing:
+ *
+ *  - flush_tlb_all() flushes all processes TLB entries
+ *  - flush_tlb_mm(mm) flushes the specified mm context TLB entries
+ *  - flush_tlb_page(mm, vmaddr) flushes a single page
+ *  - flush_tlb_range(mm, start, end) flushes a range of pages
+ */
+
+extern void flush_tlb_all(void);
+extern void flush_tlb_mm(struct mm_struct*);
+extern void flush_tlb_page(struct vm_area_struct*,unsigned long);
+extern void flush_tlb_range(struct vm_area_struct*,unsigned long,unsigned long);
+
+#define flush_tlb_kernel_range(start,end) flush_tlb_all()
+
+
+/* This is calld in munmap when we have freed up some page-table pages.
+ * We don't need to do anything here, there's nothing special about our
+ * page-table pages.
+ */
+
+extern inline void flush_tlb_pgtables(struct mm_struct *mm,
+                                      unsigned long start, unsigned long end)
+{
+}
+
+/* TLB operations. */
+
+#define ITLB_WAYS_LOG2      XCHAL_ITLB_WAY_BITS
+#define DTLB_WAYS_LOG2      XCHAL_DTLB_WAY_BITS
+#define ITLB_PROBE_SUCCESS  (1 << ITLB_WAYS_LOG2)
+#define DTLB_PROBE_SUCCESS  (1 << DTLB_WAYS_LOG2)
+
+extern inline unsigned long itlb_probe(unsigned long addr)
+{
+        unsigned long tmp;
+        __asm__ __volatile__("pitlb  %0, %1\n\t" : "=a" (tmp) : "a" (addr));
+        return tmp;
+}
+
+extern inline unsigned long dtlb_probe(unsigned long addr)
+{
+        unsigned long tmp;
+        __asm__ __volatile__("pdtlb  %0, %1\n\t" : "=a" (tmp) : "a" (addr));
+        return tmp;
+}
+
+extern inline void invalidate_itlb_entry (unsigned long probe)
+{
+        __asm__ __volatile__("iitlb  %0; isync\n\t" : : "a" (probe));
+}
+
+extern inline void invalidate_dtlb_entry (unsigned long probe)
+{
+        __asm__ __volatile__("idtlb  %0; dsync\n\t" : : "a" (probe));
+}
+
+/* Use the .._no_isync functions with caution.  Generally, these are
+ * handy for bulk invalidates followed by a single 'isync'.  The
+ * caller must follow up with an 'isync', which can be relatively
+ * expensive on some Xtensa implementations.
+ */
+extern inline void invalidate_itlb_entry_no_isync (unsigned entry)
+{
+        /* Caller must follow up with 'isync'. */
+        __asm__ __volatile__ ("iitlb  %0\n" : : "a" (entry) );
+}
+
+extern inline void invalidate_dtlb_entry_no_isync (unsigned entry)
+{
+        /* Caller must follow up with 'isync'. */
+        __asm__ __volatile__ ("idtlb  %0\n" : : "a" (entry) );
+}
+
+extern inline void set_itlbcfg_register (unsigned long val)
+{
+        __asm__ __volatile__("wsr  %0, "__stringify(ITLBCFG)"\n\t" "isync\n\t"
+                             : : "a" (val));
+}
+
+extern inline void set_dtlbcfg_register (unsigned long val)
+{
+        __asm__ __volatile__("wsr  %0, "__stringify(DTLBCFG)"; dsync\n\t"
+                             : : "a" (val));
+}
+
+extern inline void set_ptevaddr_register (unsigned long val)
+{
+        __asm__ __volatile__(" wsr  %0, "__stringify(PTEVADDR)"; isync\n"
+                             : : "a" (val));
+}
+
+extern inline unsigned long read_ptevaddr_register (void)
+{
+        unsigned long tmp;
+        __asm__ __volatile__("rsr  %0, "__stringify(PTEVADDR)"\n\t" : "=a" (tmp));
+        return tmp;
+}
+
+extern inline void write_dtlb_entry (pte_t entry, int way)
+{
+        __asm__ __volatile__("wdtlb  %1, %0; dsync\n\t"
+                             : : "r" (way), "r" (entry) );
+}
+
+extern inline void write_itlb_entry (pte_t entry, int way)
+{
+        __asm__ __volatile__("witlb  %1, %0; isync\n\t"
+                             : : "r" (way), "r" (entry) );
+}
+
+extern inline void invalidate_page_directory (void)
+{
+        invalidate_dtlb_entry (DTLB_WAY_PGTABLE);
+}
+
+extern inline void invalidate_itlb_mapping (unsigned address)
+{
+        unsigned long tlb_entry;
+        while ((tlb_entry = itlb_probe (address)) & ITLB_PROBE_SUCCESS)
+                invalidate_itlb_entry (tlb_entry);
+}
+
+extern inline void invalidate_dtlb_mapping (unsigned address)
+{
+        unsigned long tlb_entry;
+        while ((tlb_entry = dtlb_probe (address)) & DTLB_PROBE_SUCCESS)
+                invalidate_dtlb_entry (tlb_entry);
+}
+
+#define check_pgt_cache()       do { } while (0)
+
+
+#ifdef DEBUG_TLB
+
+/* DO NOT USE THESE FUNCTIONS.  These instructions aren't part of the Xtensa
+ * ISA and exist only for test purposes..
+ * You may find it helpful for MMU debugging, however.
+ *
+ * 'at' is the unmodified input register
+ * 'as' is the output register, as follows (specific to the Linux config):
+ *
+ *      as[31..12] contain the virtual address
+ *      as[11..08] are meaningless
+ *      as[07..00] contain the asid
+ */
+
+extern inline unsigned long read_dtlb_virtual (int way)
+{
+        unsigned long tmp;
+        __asm__ __volatile__("rdtlb0  %0, %1\n\t" : "=a" (tmp), "+a" (way));
+        return tmp;
+}
+
+extern inline unsigned long read_dtlb_translation (int way)
+{
+        unsigned long tmp;
+        __asm__ __volatile__("rdtlb1  %0, %1\n\t" : "=a" (tmp), "+a" (way));
+        return tmp;
+}
+
+extern inline unsigned long read_itlb_virtual (int way)
+{
+        unsigned long tmp;
+        __asm__ __volatile__("ritlb0  %0, %1\n\t" : "=a" (tmp), "+a" (way));
+        return tmp;
+}
+
+extern inline unsigned long read_itlb_translation (int way)
+{
+        unsigned long tmp;
+        __asm__ __volatile__("ritlb1  %0, %1\n\t" : "=a" (tmp), "+a" (way));
+        return tmp;
+}
+
+#endif  /* DEBUG_TLB */
+
+
+#endif  /* __KERNEL__ */
+#endif  /* _XTENSA_PGALLOC_H */
diff --git a/include/asm-xtensa/topology.h b/include/asm-xtensa/topology.h
new file mode 100644
index 000000000000..7309e38a0ccb
--- /dev/null
+++ b/include/asm-xtensa/topology.h
@@ -0,0 +1,16 @@
+/*
+ * include/asm-xtensa/topology.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_TOPOLOGY_H
+#define _XTENSA_TOPOLOGY_H
+
+#include <asm-generic/topology.h>
+
+#endif  /* _XTENSA_TOPOLOGY_H */
diff --git a/include/asm-xtensa/types.h b/include/asm-xtensa/types.h
new file mode 100644
index 000000000000..ebac00469852
--- /dev/null
+++ b/include/asm-xtensa/types.h
@@ -0,0 +1,66 @@
+/*
+ * include/asm-xtensa/types.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_TYPES_H
+#define _XTENSA_TYPES_H
+
+#ifndef __ASSEMBLY__
+
+typedef unsigned short umode_t;
+
+/*
+ * __xx is ok: it doesn't pollute the POSIX namespace. Use these in the
+ * header files exported to user space
+ */
+
+typedef __signed__ char __s8;
+typedef unsigned char __u8;
+
+typedef __signed__ short __s16;
+typedef unsigned short __u16;
+
+typedef __signed__ int __s32;
+typedef unsigned int __u32;
+
+#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
+typedef __signed__ long long __s64;
+typedef unsigned long long __u64;
+#endif
+
+/*
+ * These aren't exported outside the kernel to avoid name space clashes
+ */
+#ifdef __KERNEL__
+
+typedef __signed__ char s8;
+typedef unsigned char u8;
+
+typedef __signed__ short s16;
+typedef unsigned short u16;
+
+typedef __signed__ int s32;
+typedef unsigned int u32;
+
+typedef __signed__ long long s64;
+typedef unsigned long long u64;
+
+
+#define BITS_PER_LONG 32
+
+/* Dma addresses are 32-bits wide.  */
+
+typedef u32 dma_addr_t;
+
+typedef unsigned int kmem_bufctl_t;
+
+#endif  /* __KERNEL__ */
+#endif
+
+#endif  /* _XTENSA_TYPES_H */
diff --git a/include/asm-xtensa/uaccess.h b/include/asm-xtensa/uaccess.h
new file mode 100644
index 000000000000..35576b25c7b2
--- /dev/null
+++ b/include/asm-xtensa/uaccess.h
@@ -0,0 +1,532 @@
+/*
+ * include/asm-xtensa/uaccess.h
+ *
+ * User space memory access functions
+ *
+ * These routines provide basic accessing functions to the user memory
+ * space for the kernel. This header file provides fuctions such as:
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_UACCESS_H
+#define _XTENSA_UACCESS_H
+
+#include <linux/errno.h>
+
+#define VERIFY_READ    0
+#define VERIFY_WRITE   1
+
+#ifdef __ASSEMBLY__
+
+#define _ASMLANGUAGE
+#include <asm/current.h>
+#include <asm/offsets.h>
+#include <asm/processor.h>
+
+/*
+ * These assembly macros mirror the C macros that follow below.  They
+ * should always have identical functionality.  See
+ * arch/xtensa/kernel/sys.S for usage.
+ */
+
+#define KERNEL_DS       0
+#define USER_DS         1
+
+#define get_ds          (KERNEL_DS)
+
+/*
+ * get_fs reads current->thread.current_ds into a register.
+ * On Entry:
+ *      <ad>    anything
+ *      <sp>    stack
+ * On Exit:
+ *      <ad>    contains current->thread.current_ds
+ */
+        .macro  get_fs  ad, sp
+        GET_CURRENT(\ad,\sp)
+        l32i    \ad, \ad, THREAD_CURRENT_DS
+        .endm
+
+/*
+ * set_fs sets current->thread.current_ds to some value.
+ * On Entry:
+ *      <at>    anything (temp register)
+ *      <av>    value to write
+ *      <sp>    stack
+ * On Exit:
+ *      <at>    destroyed (actually, current)
+ *      <av>    preserved, value to write
+ */
+        .macro  set_fs  at, av, sp
+        GET_CURRENT(\at,\sp)
+        s32i    \av, \at, THREAD_CURRENT_DS
+        .endm
+
+/*
+ * kernel_ok determines whether we should bypass addr/size checking.
+ * See the equivalent C-macro version below for clarity.
+ * On success, kernel_ok branches to a label indicated by parameter
+ * <success>.  This implies that the macro falls through to the next
+ * insruction on an error.
+ *
+ * Note that while this macro can be used independently, we designed
+ * in for optimal use in the access_ok macro below (i.e., we fall
+ * through on error).
+ *
+ * On Entry:
+ *      <at>            anything (temp register)
+ *      <success>       label to branch to on success; implies
+ *                      fall-through macro on error
+ *      <sp>            stack pointer
+ * On Exit:
+ *      <at>            destroyed (actually, current->thread.current_ds)
+ */
+
+#if ((KERNEL_DS != 0) || (USER_DS == 0))
+# error Assembly macro kernel_ok fails
+#endif
+        .macro  kernel_ok  at, sp, success
+        get_fs  \at, \sp
+        beqz    \at, \success
+        .endm
+
+/*
+ * user_ok determines whether the access to user-space memory is allowed.
+ * See the equivalent C-macro version below for clarity.
+ *
+ * On error, user_ok branches to a label indicated by parameter
+ * <error>.  This implies that the macro falls through to the next
+ * instruction on success.
+ *
+ * Note that while this macro can be used independently, we designed
+ * in for optimal use in the access_ok macro below (i.e., we fall
+ * through on success).
+ *
+ * On Entry:
+ *      <aa>    register containing memory address
+ *      <as>    register containing memory size
+ *      <at>    temp register
+ *      <error> label to branch to on error; implies fall-through
+ *              macro on success
+ * On Exit:
+ *      <aa>    preserved
+ *      <as>    preserved
+ *      <at>    destroyed (actually, (TASK_SIZE + 1 - size))
+ */
+        .macro  user_ok aa, as, at, error
+        movi    \at, (TASK_SIZE+1)
+        bgeu    \as, \at, \error
+        sub     \at, \at, \as
+        bgeu    \aa, \at, \error
+        .endm
+
+/*
+ * access_ok determines whether a memory access is allowed.  See the
+ * equivalent C-macro version below for clarity.
+ *
+ * On error, access_ok branches to a label indicated by parameter
+ * <error>.  This implies that the macro falls through to the next
+ * instruction on success.
+ *
+ * Note that we assume success is the common case, and we optimize the
+ * branch fall-through case on success.
+ *
+ * On Entry:
+ *      <aa>    register containing memory address
+ *      <as>    register containing memory size
+ *      <at>    temp register
+ *      <sp>
+ *      <error> label to branch to on error; implies fall-through
+ *              macro on success
+ * On Exit:
+ *      <aa>    preserved
+ *      <as>    preserved
+ *      <at>    destroyed
+ */
+        .macro  access_ok  aa, as, at, sp, error
+        kernel_ok  \at, \sp, .Laccess_ok_\@
+        user_ok    \aa, \as, \at, \error
+.Laccess_ok_\@:
+        .endm
+
+/*
+ * verify_area determines whether a memory access is allowed.  It's
+ * mostly an unnecessary wrapper for access_ok, but we provide it as a
+ * duplicate of the verify_area() C inline function below.  See the
+ * equivalent C version below for clarity.
+ *
+ * On error, verify_area branches to a label indicated by parameter
+ * <error>.  This implies that the macro falls through to the next
+ * instruction on success.
+ *
+ * Note that we assume success is the common case, and we optimize the
+ * branch fall-through case on success.
+ *
+ * On Entry:
+ *      <aa>    register containing memory address
+ *      <as>    register containing memory size
+ *      <at>    temp register
+ *      <error> label to branch to on error; implies fall-through
+ *              macro on success
+ * On Exit:
+ *      <aa>    preserved
+ *      <as>    preserved
+ *      <at>    destroyed
+ */
+        .macro  verify_area     aa, as, at, sp, error
+        access_ok  \at, \aa, \as, \sp, \error
+        .endm
+
+
+#else /* __ASSEMBLY__ not defined */
+
+#include <linux/sched.h>
+#include <asm/types.h>
+
+/*
+ * The fs value determines whether argument validity checking should
+ * be performed or not.  If get_fs() == USER_DS, checking is
+ * performed, with get_fs() == KERNEL_DS, checking is bypassed.
+ *
+ * For historical reasons (Data Segment Register?), these macros are
+ * grossly misnamed.
+ */
+
+#define KERNEL_DS       ((mm_segment_t) { 0 })
+#define USER_DS         ((mm_segment_t) { 1 })
+
+#define get_ds()        (KERNEL_DS)
+#define get_fs()        (current->thread.current_ds)
+#define set_fs(val)     (current->thread.current_ds = (val))
+
+#define segment_eq(a,b) ((a).seg == (b).seg)
+
+#define __kernel_ok (segment_eq(get_fs(), KERNEL_DS))
+#define __user_ok(addr,size) (((size) <= TASK_SIZE)&&((addr) <= TASK_SIZE-(size)))
+#define __access_ok(addr,size) (__kernel_ok || __user_ok((addr),(size)))
+#define access_ok(type,addr,size) __access_ok((unsigned long)(addr),(size))
+
+extern inline int verify_area(int type, const void * addr, unsigned long size)
+{
+        return access_ok(type,addr,size) ? 0 : -EFAULT;
+}
+
+/*
+ * These are the main single-value transfer routines.  They
+ * automatically use the right size if we just have the right pointer
+ * type.
+ *
+ * This gets kind of ugly. We want to return _two_ values in
+ * "get_user()" and yet we don't want to do any pointers, because that
+ * is too much of a performance impact. Thus we have a few rather ugly
+ * macros here, and hide all the uglyness from the user.
+ *
+ * Careful to not
+ * (a) re-use the arguments for side effects (sizeof is ok)
+ * (b) require any knowledge of processes at this stage
+ */
+#define put_user(x,ptr) __put_user_check((x),(ptr),sizeof(*(ptr)))
+#define get_user(x,ptr) __get_user_check((x),(ptr),sizeof(*(ptr)))
+
+/*
+ * The "__xxx" versions of the user access functions are versions that
+ * do not verify the address space, that must have been done previously
+ * with a separate "access_ok()" call (this is used when we do multiple
+ * accesses to the same area of user memory).
+ */
+#define __put_user(x,ptr) __put_user_nocheck((x),(ptr),sizeof(*(ptr)))
+#define __get_user(x,ptr) __get_user_nocheck((x),(ptr),sizeof(*(ptr)))
+
+
+extern long __put_user_bad(void);
+
+#define __put_user_nocheck(x,ptr,size)                  \
+({                                                      \
+        long __pu_err;                                  \
+        __put_user_size((x),(ptr),(size),__pu_err);     \
+        __pu_err;                                       \
+})
+
+#define __put_user_check(x,ptr,size)                            \
+({                                                              \
+        long __pu_err = -EFAULT;                                \
+        __typeof__(*(ptr)) *__pu_addr = (ptr);                  \
+        if (access_ok(VERIFY_WRITE,__pu_addr,size))             \
+                __put_user_size((x),__pu_addr,(size),__pu_err); \
+        __pu_err;                                               \
+})
+
+#define __put_user_size(x,ptr,size,retval)                      \
+do {                                                            \
+        retval = 0;                                             \
+        switch (size) {                                         \
+        case 1: __put_user_asm(x,ptr,retval,1,"s8i");  break;   \
+        case 2: __put_user_asm(x,ptr,retval,2,"s16i"); break;   \
+        case 4: __put_user_asm(x,ptr,retval,4,"s32i"); break;   \
+        case 8: {                                               \
+                     __typeof__(*ptr) __v64 = x;                \
+                     retval = __copy_to_user(ptr,&__v64,8);     \
+                     break;                                     \
+                }                                               \
+        default: __put_user_bad();                              \
+        }                                                       \
+} while (0)
+
+
+/*
+ * Consider a case of a user single load/store would cause both an
+ * unaligned exception and an MMU-related exception (unaligned
+ * exceptions happen first):
+ *
+ * User code passes a bad variable ptr to a system call.
+ * Kernel tries to access the variable.
+ * Unaligned exception occurs.
+ * Unaligned exception handler tries to make aligned accesses.
+ * Double exception occurs for MMU-related cause (e.g., page not mapped).
+ * do_page_fault() thinks the fault address belongs to the kernel, not the
+ * user, and panics.
+ *
+ * The kernel currently prohibits user unaligned accesses.  We use the
+ * __check_align_* macros to check for unaligned addresses before
+ * accessing user space so we don't crash the kernel.  Both
+ * __put_user_asm and __get_user_asm use these alignment macros, so
+ * macro-specific labels such as 0f, 1f, %0, %2, and %3 must stay in
+ * sync.
+ */
+
+#define __check_align_1  ""
+
+#define __check_align_2                         \
+        "   _bbci.l %2,  0, 1f          \n"     \
+        "   movi    %0, %3              \n"     \
+        "   _j      2f                  \n"
+
+#define __check_align_4                         \
+        "   _bbsi.l %2,  0, 0f          \n"     \
+        "   _bbci.l %2,  1, 1f          \n"     \
+        "0: movi    %0, %3              \n"     \
+        "   _j      2f                  \n"
+
+
+/*
+ * We don't tell gcc that we are accessing memory, but this is OK
+ * because we do not write to any memory gcc knows about, so there
+ * are no aliasing issues.
+ *
+ * WARNING: If you modify this macro at all, verify that the
+ * __check_align_* macros still work.
+ */
+#define __put_user_asm(x, addr, err, align, insn) \
+   __asm__ __volatile__(                        \
+        __check_align_##align                   \
+        "1: "insn"  %1, %2, 0           \n"     \
+        "2:                             \n"     \
+        "   .section  .fixup,\"ax\"     \n"     \
+        "   .align 4                    \n"     \
+        "4:                             \n"     \
+        "   .long  2b                   \n"     \
+        "5:                             \n"     \
+        "   l32r   %2, 4b               \n"     \
+        "   movi   %0, %3               \n"     \
+        "   jx     %2                   \n"     \
+        "   .previous                   \n"     \
+        "   .section  __ex_table,\"a\"  \n"     \
+        "   .long       1b, 5b          \n"     \
+        "   .previous"                          \
+        :"=r" (err)                             \
+        :"r" ((int)(x)), "r" (addr), "i" (-EFAULT), "0" (err))
+
+#define __get_user_nocheck(x,ptr,size)                          \
+({                                                              \
+        long __gu_err, __gu_val;                                \
+        __get_user_size(__gu_val,(ptr),(size),__gu_err);        \
+        (x) = (__typeof__(*(ptr)))__gu_val;                     \
+        __gu_err;                                               \
+})
+
+#define __get_user_check(x,ptr,size)                                    \
+({                                                                      \
+        long __gu_err = -EFAULT, __gu_val = 0;                          \
+        const __typeof__(*(ptr)) *__gu_addr = (ptr);                    \
+        if (access_ok(VERIFY_READ,__gu_addr,size))                      \
+                __get_user_size(__gu_val,__gu_addr,(size),__gu_err);    \
+        (x) = (__typeof__(*(ptr)))__gu_val;                             \
+        __gu_err;                                                       \
+})
+
+extern long __get_user_bad(void);
+
+#define __get_user_size(x,ptr,size,retval)                              \
+do {                                                                    \
+        retval = 0;                                                     \
+        switch (size) {                                                 \
+          case 1: __get_user_asm(x,ptr,retval,1,"l8ui");  break;        \
+          case 2: __get_user_asm(x,ptr,retval,2,"l16ui"); break;        \
+          case 4: __get_user_asm(x,ptr,retval,4,"l32i");  break;        \
+          case 8: retval = __copy_from_user(&x,ptr,8);    break;        \
+          default: (x) = __get_user_bad();                              \
+        }                                                               \
+} while (0)
+
+
+/*
+ * WARNING: If you modify this macro at all, verify that the
+ * __check_align_* macros still work.
+ */
+#define __get_user_asm(x, addr, err, align, insn) \
+   __asm__ __volatile__(                        \
+        __check_align_##align                   \
+        "1: "insn"  %1, %2, 0           \n"     \
+        "2:                             \n"     \
+        "   .section  .fixup,\"ax\"     \n"     \
+        "   .align 4                    \n"     \
+        "4:                             \n"     \
+        "   .long  2b                   \n"     \
+        "5:                             \n"     \
+        "   l32r   %2, 4b               \n"     \
+        "   movi   %1, 0                \n"     \
+        "   movi   %0, %3               \n"     \
+        "   jx     %2                   \n"     \
+        "   .previous                   \n"     \
+        "   .section  __ex_table,\"a\"  \n"     \
+        "   .long       1b, 5b          \n"     \
+        "   .previous"                          \
+        :"=r" (err), "=r" (x)                   \
+        :"r" (addr), "i" (-EFAULT), "0" (err))
+
+
+/*
+ * Copy to/from user space
+ */
+
+/*
+ * We use a generic, arbitrary-sized copy subroutine.  The Xtensa
+ * architecture would cause heavy code bloat if we tried to inline
+ * these functions and provide __constant_copy_* equivalents like the
+ * i386 versions.  __xtensa_copy_user is quite efficient.  See the
+ * .fixup section of __xtensa_copy_user for a discussion on the
+ * X_zeroing equivalents for Xtensa.
+ */
+
+extern unsigned __xtensa_copy_user(void *to, const void *from, unsigned n);
+#define __copy_user(to,from,size) __xtensa_copy_user(to,from,size)
+
+
+static inline unsigned long
+__generic_copy_from_user_nocheck(void *to, const void *from, unsigned long n)
+{
+        return __copy_user(to,from,n);
+}
+
+static inline unsigned long
+__generic_copy_to_user_nocheck(void *to, const void *from, unsigned long n)
+{
+        return __copy_user(to,from,n);
+}
+
+static inline unsigned long
+__generic_copy_to_user(void *to, const void *from, unsigned long n)
+{
+        prefetch(from);
+        if (access_ok(VERIFY_WRITE, to, n))
+                return __copy_user(to,from,n);
+        return n;
+}
+
+static inline unsigned long
+__generic_copy_from_user(void *to, const void *from, unsigned long n)
+{
+        prefetchw(to);
+        if (access_ok(VERIFY_READ, from, n))
+                return __copy_user(to,from,n);
+        else
+                memset(to, 0, n);
+        return n;
+}
+
+#define copy_to_user(to,from,n) __generic_copy_to_user((to),(from),(n))
+#define copy_from_user(to,from,n) __generic_copy_from_user((to),(from),(n))
+#define __copy_to_user(to,from,n) __generic_copy_to_user_nocheck((to),(from),(n))
+#define __copy_from_user(to,from,n) __generic_copy_from_user_nocheck((to),(from),(n))
+#define __copy_to_user_inatomic __copy_to_user
+#define __copy_from_user_inatomic __copy_from_user
+
+
+/*
+ * We need to return the number of bytes not cleared.  Our memset()
+ * returns zero if a problem occurs while accessing user-space memory.
+ * In that event, return no memory cleared.  Otherwise, zero for
+ * success.
+ */
+
+extern inline unsigned long
+__xtensa_clear_user(void *addr, unsigned long size)
+{
+        if ( ! memset(addr, 0, size) )
+                return size;
+        return 0;
+}
+
+extern inline unsigned long
+clear_user(void *addr, unsigned long size)
+{
+        if (access_ok(VERIFY_WRITE, addr, size))
+                return __xtensa_clear_user(addr, size);
+        return size ? -EFAULT : 0;
+}
+
+#define __clear_user  __xtensa_clear_user
+
+
+extern long __strncpy_user(char *, const char *, long);
+#define __strncpy_from_user __strncpy_user
+
+extern inline long
+strncpy_from_user(char *dst, const char *src, long count)
+{
+        if (access_ok(VERIFY_READ, src, 1))
+                return __strncpy_from_user(dst, src, count);
+        return -EFAULT;
+}
+
+
+#define strlen_user(str) strnlen_user((str), TASK_SIZE - 1)
+
+/*
+ * Return the size of a string (including the ending 0!)
+ */
+extern long __strnlen_user(const char *, long);
+
+extern inline long strnlen_user(const char *str, long len)
+{
+        unsigned long top = __kernel_ok ? ~0UL : TASK_SIZE - 1;
+
+        if ((unsigned long)str > top)
+                return 0;
+        return __strnlen_user(str, len);
+}
+
+
+struct exception_table_entry
+{
+        unsigned long insn, fixup;
+};
+
+/* Returns 0 if exception not found and fixup.unit otherwise.  */
+
+extern unsigned long search_exception_table(unsigned long addr);
+extern void sort_exception_table(void);
+
+/* Returns the new pc */
+#define fixup_exception(map_reg, fixup_unit, pc)                \
+({                                                              \
+        fixup_unit;                                             \
+})
+
+#endif  /* __ASSEMBLY__ */
+#endif  /* _XTENSA_UACCESS_H */
diff --git a/include/asm-xtensa/ucontext.h b/include/asm-xtensa/ucontext.h
new file mode 100644
index 000000000000..94c94ed3e00a
--- /dev/null
+++ b/include/asm-xtensa/ucontext.h
@@ -0,0 +1,22 @@
+/*
+ * include/asm-xtensa/ucontext.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_UCONTEXT_H
+#define _XTENSA_UCONTEXT_H
+
+struct ucontext {
+        unsigned long     uc_flags;
+        struct ucontext  *uc_link;
+        stack_t           uc_stack;
+        struct sigcontext uc_mcontext;
+        sigset_t          uc_sigmask;   /* mask last for extensibility */
+};
+
+#endif /* _XTENSA_UCONTEXT_H */
diff --git a/include/asm-xtensa/unaligned.h b/include/asm-xtensa/unaligned.h
new file mode 100644
index 000000000000..28220890d0a6
--- /dev/null
+++ b/include/asm-xtensa/unaligned.h
@@ -0,0 +1,28 @@
+/*
+ * include/asm-xtensa/unaligned.h
+ *
+ * Xtensa doesn't handle unaligned accesses efficiently.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_UNALIGNED_H
+#define _XTENSA_UNALIGNED_H
+
+#include <linux/string.h>
+
+/* Use memmove here, so gcc does not insert a __builtin_memcpy. */
+
+#define get_unaligned(ptr) \
+  ({ __typeof__(*(ptr)) __tmp; memmove(&__tmp, (ptr), sizeof(*(ptr))); __tmp; })
+
+#define put_unaligned(val, ptr)                         \
+  ({ __typeof__(*(ptr)) __tmp = (val);                  \
+     memmove((ptr), &__tmp, sizeof(*(ptr)));            \
+     (void)0; })
+
+#endif  /* _XTENSA_UNALIGNED_H */
diff --git a/include/asm-xtensa/unistd.h b/include/asm-xtensa/unistd.h
new file mode 100644
index 000000000000..64c64dd83ba4
--- /dev/null
+++ b/include/asm-xtensa/unistd.h
@@ -0,0 +1,537 @@
+/*
+ * include/asm-xtensa/unistd.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_UNISTD_H
+#define _XTENSA_UNISTD_H
+
+#include <linux/linkage.h>
+
+//#define __NR_setup              0 /* used only by init, to get system going */
+#define __NR_spill                0
+#define __NR_exit                 1
+#define __NR_fork                 2
+#define __NR_read                 3
+#define __NR_write                4
+#define __NR_open                 5
+#define __NR_close                6
+#define __NR_waitpid              7
+#define __NR_creat                8
+#define __NR_link                 9
+#define __NR_unlink              10
+#define __NR_execve              11
+#define __NR_chdir               12
+#define __NR_time                13
+#define __NR_mknod               14
+#define __NR_chmod               15
+#define __NR_lchown              16
+#define __NR_break               17
+#define __NR_oldstat             18
+#define __NR_lseek               19
+#define __NR_getpid              20
+#define __NR_mount               21
+#define __NR_oldumount           22
+#define __NR_setuid              23
+#define __NR_getuid              24
+#define __NR_stime               25
+#define __NR_ptrace              26
+#define __NR_alarm               27
+#define __NR_oldfstat            28
+#define __NR_pause               29
+#define __NR_utime               30
+#define __NR_stty                31
+#define __NR_gtty                32
+#define __NR_access              33
+#define __NR_nice                34
+#define __NR_ftime               35
+#define __NR_sync                36
+#define __NR_kill                37
+#define __NR_rename              38
+#define __NR_mkdir               39
+#define __NR_rmdir               40
+#define __NR_dup                 41
+#define __NR_pipe                42
+#define __NR_times               43
+#define __NR_prof                44
+#define __NR_brk                 45
+#define __NR_setgid              46
+#define __NR_getgid              47
+#define __NR_signal              48
+#define __NR_geteuid             49
+#define __NR_getegid             50
+#define __NR_acct                51
+#define __NR_umount              52
+#define __NR_lock                53
+#define __NR_ioctl               54
+#define __NR_fcntl               55
+#define __NR_mpx                 56
+#define __NR_setpgid             57
+#define __NR_ulimit              58
+#define __NR_oldolduname         59
+#define __NR_umask               60
+#define __NR_chroot              61
+#define __NR_ustat               62
+#define __NR_dup2                63
+#define __NR_getppid             64
+#define __NR_getpgrp             65
+#define __NR_setsid              66
+#define __NR_sigaction           67
+#define __NR_sgetmask            68
+#define __NR_ssetmask            69
+#define __NR_setreuid            70
+#define __NR_setregid            71
+#define __NR_sigsuspend          72
+#define __NR_sigpending          73
+#define __NR_sethostname         74
+#define __NR_setrlimit           75
+#define __NR_getrlimit           76     /* Back compatible 2Gig limited rlimit */
+#define __NR_getrusage           77
+#define __NR_gettimeofday        78
+#define __NR_settimeofday        79
+#define __NR_getgroups           80
+#define __NR_setgroups           81
+#define __NR_select              82
+#define __NR_symlink             83
+#define __NR_oldlstat            84
+#define __NR_readlink            85
+#define __NR_uselib              86
+#define __NR_swapon              87
+#define __NR_reboot              88
+#define __NR_readdir             89
+#define __NR_mmap                90
+#define __NR_munmap              91
+#define __NR_truncate            92
+#define __NR_ftruncate           93
+#define __NR_fchmod              94
+#define __NR_fchown              95
+#define __NR_getpriority         96
+#define __NR_setpriority         97
+#define __NR_profil              98
+#define __NR_statfs              99
+#define __NR_fstatfs            100
+#define __NR_ioperm             101
+#define __NR_socketcall         102
+#define __NR_syslog             103
+#define __NR_setitimer          104
+#define __NR_getitimer          105
+#define __NR_stat               106
+#define __NR_lstat              107
+#define __NR_fstat              108
+#define __NR_olduname           109
+#define __NR_iopl               110
+#define __NR_vhangup            111
+#define __NR_idle               112
+#define __NR_vm86               113
+#define __NR_wait4              114
+#define __NR_swapoff            115
+#define __NR_sysinfo            116
+#define __NR_ipc                117
+#define __NR_fsync              118
+#define __NR_sigreturn          119
+#define __NR_clone              120
+#define __NR_setdomainname      121
+#define __NR_uname              122
+#define __NR_modify_ldt         123
+#define __NR_adjtimex           124
+#define __NR_mprotect           125
+#define __NR_sigprocmask        126
+#define __NR_create_module      127
+#define __NR_init_module        128
+#define __NR_delete_module      129
+#define __NR_get_kernel_syms    130
+#define __NR_quotactl           131
+#define __NR_getpgid            132
+#define __NR_fchdir             133
+#define __NR_bdflush            134
+#define __NR_sysfs              135
+#define __NR_personality        136
+#define __NR_afs_syscall        137 /* Syscall for Andrew File System */
+#define __NR_setfsuid           138
+#define __NR_setfsgid           139
+#define __NR__llseek            140
+#define __NR_getdents           141
+#define __NR__newselect         142
+#define __NR_flock              143
+#define __NR_msync              144
+#define __NR_readv              145
+#define __NR_writev             146
+#define __NR_cacheflush         147
+#define __NR_cachectl           148
+#define __NR_sysxtensa          149
+#define __NR_sysdummy           150
+#define __NR_getsid             151
+#define __NR_fdatasync          152
+#define __NR__sysctl            153
+#define __NR_mlock              154
+#define __NR_munlock            155
+#define __NR_mlockall           156
+#define __NR_munlockall         157
+#define __NR_sched_setparam             158
+#define __NR_sched_getparam             159
+#define __NR_sched_setscheduler         160
+#define __NR_sched_getscheduler         161
+#define __NR_sched_yield                162
+#define __NR_sched_get_priority_max     163
+#define __NR_sched_get_priority_min     164
+#define __NR_sched_rr_get_interval      165
+#define __NR_nanosleep          166
+#define __NR_mremap             167
+#define __NR_accept             168
+#define __NR_bind               169
+#define __NR_connect            170
+#define __NR_getpeername        171
+#define __NR_getsockname        172
+#define __NR_getsockopt         173
+#define __NR_listen             174
+#define __NR_recv               175
+#define __NR_recvfrom           176
+#define __NR_recvmsg            177
+#define __NR_send               178
+#define __NR_sendmsg            179
+#define __NR_sendto             180
+#define __NR_setsockopt         181
+#define __NR_shutdown           182
+#define __NR_socket             183
+#define __NR_socketpair         184
+#define __NR_setresuid          185
+#define __NR_getresuid          186
+#define __NR_query_module       187
+#define __NR_poll               188
+#define __NR_nfsservctl         189
+#define __NR_setresgid          190
+#define __NR_getresgid          191
+#define __NR_prctl              192
+#define __NR_rt_sigreturn       193
+#define __NR_rt_sigaction       194
+#define __NR_rt_sigprocmask     195
+#define __NR_rt_sigpending      196
+#define __NR_rt_sigtimedwait    197
+#define __NR_rt_sigqueueinfo    198
+#define __NR_rt_sigsuspend      199
+#define __NR_pread              200
+#define __NR_pwrite             201
+#define __NR_chown              202
+#define __NR_getcwd             203
+#define __NR_capget             204
+#define __NR_capset             205
+#define __NR_sigaltstack        206
+#define __NR_sendfile           207
+#define __NR_streams1           208     /* some people actually want it */
+#define __NR_streams2           209     /* some people actually want it */
+#define __NR_mmap2              210
+#define __NR_truncate64         211
+#define __NR_ftruncate64        212
+#define __NR_stat64             213
+#define __NR_lstat64            214
+#define __NR_fstat64            215
+#define __NR_pivot_root         216
+#define __NR_mincore            217
+#define __NR_madvise            218
+#define __NR_getdents64         219
+#define __NR_vfork              220
+
+/* Keep this last; should always equal the last valid call number. */
+#define __NR_Linux_syscalls     220
+
+/* user-visible error numbers are in the range -1 - -125: see
+ * <asm-xtensa/errno.h> */
+
+#define SYSXTENSA_RESERVED         0    /* don't use this */
+#define SYSXTENSA_ATOMIC_SET       1    /* set variable */
+#define SYSXTENSA_ATOMIC_EXG_ADD   2    /* exchange memory and add */
+#define SYSXTENSA_ATOMIC_ADD       3    /* add to memory */
+#define SYSXTENSA_ATOMIC_CMP_SWP   4    /* compare and swap */
+
+#define SYSXTENSA_COUNT            5    /* count of syscall0 functions*/
+
+#ifdef __KERNEL__
+#define __syscall_return(type, res) return ((type)(res))
+#else
+#define __syscall_return(type, res) \
+do { \
+        if ((unsigned long)(res) >= (unsigned long)(-125)) { \
+        /* Avoid using "res" which is declared to be in register r2; \
+         * errno might expand to a function call and clobber it.  */ \
+                int __err = -(res); \
+                errno = __err; \
+                res = -1; \
+        } \
+        return (type) (res); \
+} while (0)
+#endif
+
+
+/* Tensilica's xt-xcc compiler is much more agressive at code
+ * optimization than gcc.  Multiple __asm__ statements are
+ * insufficient for xt-xcc because subsequent optimization passes
+ * (beyond the front-end that knows of __asm__ statements and other
+ * such GNU Extensions to C) can modify the register selection for
+ * containment of C variables.
+ *
+ * xt-xcc cannot modify the contents of a single __asm__ statement, so
+ * we create single-asm versions of the syscall macros that are
+ * suitable and optimal for both xt-xcc and gcc.
+ *
+ * Linux takes system-call arguments in registers.  The following
+ * design is optimized for user-land apps (e.g., glibc) which
+ * typically have a function wrapper around the "syscall" assembly
+ * instruction.  It satisfies the Xtensa ABI while minizing argument
+ * shifting.
+ *
+ * The Xtensa ABI and software conventions require the system-call
+ * number in a2.  If an argument exists in a2, we move it to the next
+ * available register.  Note that for improved efficiency, we do NOT
+ * shift all parameters down one register to maintain the original
+ * order.
+ *
+ * At best case (zero arguments), we just write the syscall number to
+ * a2.  At worst case (1 to 6 arguments), we move the argument in a2
+ * to the next available register, then write the syscall number to
+ * a2.
+ *
+ * For clarity, the following truth table enumerates all possibilities.
+ *
+ * arguments    syscall number  arg0, arg1, arg2, arg3, arg4, arg5
+ * ---------    --------------  ----------------------------------
+ *      0             a2
+ *      1             a2        a3
+ *      2             a2        a4,   a3
+ *      3             a2        a5,   a3,   a4
+ *      4             a2        a6,   a3,   a4,   a5
+ *      5             a2        a7,   a3,   a4,   a5,   a6
+ *      6             a2        a8,   a3,   a4,   a5,   a6,   a7
+ */
+
+#define _syscall0(type,name) \
+type name(void) \
+{ \
+long __res; \
+__asm__ __volatile__ ( \
+        "  movi  a2, %1 \n" \
+        "  syscall      \n" \
+        "  mov   %0, a2 \n" \
+        : "=a" (__res) \
+        : "i" (__NR_##name) \
+        : "a2" \
+        ); \
+__syscall_return(type,__res); \
+}
+
+#define _syscall1(type,name,type0,arg0) \
+type name(type0 arg0) \
+{ \
+long __res; \
+__asm__ __volatile__ ( \
+        "  mov   a3, %2 \n" \
+        "  movi  a2, %1 \n" \
+        "  syscall      \n" \
+        "  mov   %0, a2 \n" \
+        : "=a" (__res) \
+        : "i" (__NR_##name), "a" (arg0) \
+        : "a2", "a3" \
+        ); \
+__syscall_return(type,__res); \
+}
+
+#define _syscall2(type,name,type0,arg0,type1,arg1) \
+type name(type0 arg0,type1 arg1) \
+{ \
+long __res; \
+__asm__ __volatile__ ( \
+        "  mov   a4, %2 \n" \
+        "  mov   a3, %3 \n" \
+        "  movi  a2, %1 \n" \
+        "  syscall      \n" \
+        "  mov   %0, a2 \n" \
+        : "=a" (__res) \
+        : "i" (__NR_##name), "a" (arg0), "a" (arg1) \
+        : "a2", "a3", "a4" \
+        ); \
+__syscall_return(type,__res); \
+}
+
+#define _syscall3(type,name,type0,arg0,type1,arg1,type2,arg2) \
+type name(type0 arg0,type1 arg1,type2 arg2) \
+{ \
+long __res; \
+__asm__ __volatile__ ( \
+        "  mov   a5, %2 \n" \
+        "  mov   a4, %4 \n" \
+        "  mov   a3, %3 \n" \
+        "  movi  a2, %1 \n" \
+        "  syscall      \n" \
+        "  mov   %0, a2 \n" \
+        : "=a" (__res) \
+        : "i" (__NR_##name), "a" (arg0), "a" (arg1), "a" (arg2) \
+        : "a2", "a3", "a4", "a5" \
+        ); \
+__syscall_return(type,__res); \
+}
+
+#define _syscall4(type,name,type0,arg0,type1,arg1,type2,arg2,type3,arg3) \
+type name(type0 arg0,type1 arg1,type2 arg2,type3 arg3) \
+{ \
+long __res; \
+__asm__ __volatile__ ( \
+        "  mov   a6, %2 \n" \
+        "  mov   a5, %5 \n" \
+        "  mov   a4, %4 \n" \
+        "  mov   a3, %3 \n" \
+        "  movi  a2, %1 \n" \
+        "  syscall      \n" \
+        "  mov   %0, a2 \n" \
+        : "=a" (__res) \
+        : "i" (__NR_##name), "a" (arg0), "a" (arg1), "a" (arg2), "a" (arg3) \
+        : "a2", "a3", "a4", "a5", "a6" \
+        ); \
+__syscall_return(type,__res); \
+}
+
+/* Note that we save and restore the a7 frame pointer.
+ * Including a7 in the clobber list doesn't do what you'd expect.
+ */
+#define _syscall5(type,name,type0,arg0,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
+type name(type0 arg0,type1 arg1,type2 arg2,type3 arg3,type4 arg4) \
+{ \
+long __res; \
+__asm__ __volatile__ ( \
+        "  mov   a9, a7 \n" \
+        "  mov   a7, %2 \n" \
+        "  mov   a6, %6 \n" \
+        "  mov   a5, %5 \n" \
+        "  mov   a4, %4 \n" \
+        "  mov   a3, %3 \n" \
+        "  movi  a2, %1 \n" \
+        "  syscall      \n" \
+        "  mov   a7, a9 \n" \
+        "  mov   %0, a2 \n" \
+        : "=a" (__res) \
+        : "i" (__NR_##name), "a" (arg0), "a" (arg1), "a" (arg2), \
+                             "a" (arg3), "a" (arg4) \
+        : "a2", "a3", "a4", "a5", "a6", "a9" \
+        ); \
+__syscall_return(type,__res); \
+}
+
+/* Note that we save and restore the a7 frame pointer.
+ * Including a7 in the clobber list doesn't do what you'd expect.
+ */
+#define _syscall6(type,name,type0,arg0,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \
+type name(type0 arg0,type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
+{ \
+long __res; \
+__asm__ __volatile__ ( \
+        "  mov   a9, a7 \n" \
+        "  mov   a8, %2 \n" \
+        "  mov   a7, %7 \n" \
+        "  mov   a6, %6 \n" \
+        "  mov   a5, %5 \n" \
+        "  mov   a4, %4 \n" \
+        "  mov   a3, %3 \n" \
+        "  movi  a2, %1 \n" \
+        "  syscall      \n" \
+        "  mov   a7, a9 \n" \
+        "  mov   %0, a2 \n" \
+        : "=a" (__res) \
+        : "i" (__NR_##name), "a" (arg0), "a" (arg1), "a" (arg2), \
+                             "a" (arg3), "a" (arg4), "a" (arg5)  \
+        : "a2", "a3", "a4", "a5", "a6", "a8", "a9" \
+        ); \
+__syscall_return(type,__res); \
+}
+
+
+#ifdef __KERNEL_SYSCALLS__
+
+#include <linux/compiler.h>
+#include <linux/types.h>
+#include <linux/syscalls.h>
+
+/*
+ * we need this inline - forking from kernel space will result
+ * in NO COPY ON WRITE (!!!), until an execve is executed. This
+ * is no problem, but for the stack. This is handled by not letting
+ * main() use the stack at all after fork(). Thus, no function
+ * calls - which means inline code for fork too, as otherwise we
+ * would use the stack upon exit from 'fork()'.
+ *
+ * Actually only pause and fork are needed inline, so that there
+ * won't be any messing with the stack from main(), but we define
+ * some others too.
+ */
+
+#define __NR__exit __NR_exit
+
+static __inline__ _syscall0(int,pause)
+//static __inline__ _syscall1(int,setup,int,magic) FIXME
+static __inline__ _syscall0(int,sync)
+static __inline__ _syscall0(pid_t,setsid)
+static __inline__ _syscall3(int,write,int,fd,const char *,buf,off_t,count)
+static __inline__ _syscall3(int,read,int,fd,char *,buf,off_t,count)
+static __inline__ _syscall3(off_t,lseek,int,fd,off_t,offset,int,count)
+static __inline__ _syscall1(int,dup,int,fd)
+static __inline__ _syscall3(int,execve,const char*,file,char**,argv,char**,envp)
+static __inline__ _syscall3(int,open,const char *,file,int,flag,int,mode)
+static __inline__ _syscall1(int,close,int,fd)
+static __inline__ _syscall1(int,_exit,int,exitcode)
+static __inline__ _syscall3(pid_t,waitpid,pid_t,pid,int *,wait_stat,int,options)
+static __inline__ _syscall1(int,delete_module,const char *,name)
+
+struct stat;
+static __inline__ _syscall2(int,fstat,int,fd,struct stat *,buf)
+static __inline__ _syscall0(pid_t,getpid)
+static __inline__ _syscall2(int,kill,int,pid,int,sig)
+static __inline__ _syscall2(int,stat,const char *, path,struct stat *,buf)
+static __inline__ _syscall1(int,unlink,char *,pathname)
+
+
+
+extern pid_t waitpid(int, int*, int );
+static __inline__ pid_t wait(int * wait_stat)
+{
+        return waitpid(-1,wait_stat,0);
+}
+#endif
+
+/*
+ * "Conditional" syscalls
+ *
+ * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
+ * but it doesn't work on all toolchains, so we just do it by hand
+ */
+#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall");
+
+#ifdef __KERNEL__
+#define __ARCH_WANT_IPC_PARSE_VERSION
+#define __ARCH_WANT_OLD_READDIR
+#define __ARCH_WANT_OLD_STAT
+#define __ARCH_WANT_STAT64
+#define __ARCH_WANT_SYS_ALARM
+#define __ARCH_WANT_SYS_GETHOSTNAME
+#define __ARCH_WANT_SYS_PAUSE
+#define __ARCH_WANT_SYS_SGETMASK
+#define __ARCH_WANT_SYS_SIGNAL
+#define __ARCH_WANT_SYS_TIME
+#define __ARCH_WANT_SYS_UTIME
+#define __ARCH_WANT_SYS_WAITPID
+#define __ARCH_WANT_SYS_SOCKETCALL
+#define __ARCH_WANT_SYS_FADVISE64
+#define __ARCH_WANT_SYS_GETPGRP
+#define __ARCH_WANT_SYS_LLSEEK
+#define __ARCH_WANT_SYS_NICE
+#define __ARCH_WANT_SYS_OLD_GETRLIMIT
+#define __ARCH_WANT_SYS_OLDUMOUNT
+#define __ARCH_WANT_SYS_SIGPENDING
+#define __ARCH_WANT_SYS_SIGPROCMASK
+#define __ARCH_WANT_SYS_RT_SIGACTION
+#endif
+
+
+
+#endif  /* _XTENSA_UNISTD_H */
diff --git a/include/asm-xtensa/user.h b/include/asm-xtensa/user.h
new file mode 100644
index 000000000000..2c3ed23354a8
--- /dev/null
+++ b/include/asm-xtensa/user.h
@@ -0,0 +1,20 @@
+/*
+ * include/asm-xtensa/user.h
+ *
+ * Xtensa Processor version.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_USER_H
+#define _XTENSA_USER_H
+
+/* This file usually defines a 'struct user' structure. However, it it only
+ * used for a.out file, which are not supported on Xtensa.
+ */
+
+#endif  /* _XTENSA_USER_H */
diff --git a/include/asm-xtensa/vga.h b/include/asm-xtensa/vga.h
new file mode 100644
index 000000000000..23d82f6acb57
--- /dev/null
+++ b/include/asm-xtensa/vga.h
@@ -0,0 +1,19 @@
+/*
+ * include/asm-xtensa/vga.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_VGA_H
+#define _XTENSA_VGA_H
+
+#define VGA_MAP_MEM(x) (unsigned long)phys_to_virt(x)
+
+#define vga_readb(x)    (*(x))
+#define vga_writeb(x,y) (*(y) = (x))
+
+#endif
diff --git a/include/asm-xtensa/xor.h b/include/asm-xtensa/xor.h
new file mode 100644
index 000000000000..e7b1f083991d
--- /dev/null
+++ b/include/asm-xtensa/xor.h
@@ -0,0 +1,16 @@
+/*
+ * include/asm-xtensa/xor.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_XOR_H
+#define _XTENSA_XOR_H
+
+#include <asm-generic/xor.h>
+
+#endif
diff --git a/include/asm-xtensa/xtensa/cacheasm.h b/include/asm-xtensa/xtensa/cacheasm.h
new file mode 100644
index 000000000000..0cdbb0bf180e
--- /dev/null
+++ b/include/asm-xtensa/xtensa/cacheasm.h
@@ -0,0 +1,708 @@
+#ifndef XTENSA_CACHEASM_H
+#define XTENSA_CACHEASM_H
+
+/*
+ * THIS FILE IS GENERATED -- DO NOT MODIFY BY HAND
+ *
+ * include/asm-xtensa/xtensa/cacheasm.h -- assembler-specific cache
+ * related definitions that depend on CORE configuration.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2002 Tensilica Inc.
+ */
+
+
+#include <xtensa/coreasm.h>
+
+
+/*
+ *  This header file defines assembler macros of the form:
+ *      <x>cache_<func>
+ *  where <x> is 'i' or 'd' for instruction and data caches,
+ *  and <func> indicates the function of the macro.
+ *
+ *  The following functions <func> are defined,
+ *  and apply only to the specified cache (I or D):
+ *
+ *  reset
+ *      Resets the cache.
+ *
+ *  sync
+ *      Makes sure any previous cache instructions have been completed;
+ *      ie. makes sure any previous cache control operations
+ *      have had full effect and been synchronized to memory.
+ *      Eg. any invalidate completed [so as not to generate a hit],
+ *      any writebacks or other pipelined writes written to memory, etc.
+ *
+ *  invalidate_line             (single cache line)
+ *  invalidate_region           (specified memory range)
+ *  invalidate_all              (entire cache)
+ *      Invalidates all cache entries that cache
+ *      data from the specified memory range.
+ *      NOTE: locked entries are not invalidated.
+ *
+ *  writeback_line              (single cache line)
+ *  writeback_region            (specified memory range)
+ *  writeback_all               (entire cache)
+ *      Writes back to memory all dirty cache entries
+ *      that cache data from the specified memory range,
+ *      and marks these entries as clean.
+ *      NOTE: on some future implementations, this might
+ *              also invalidate.
+ *      NOTE: locked entries are written back, but never invalidated.
+ *      NOTE: instruction caches never implement writeback.
+ *
+ *  writeback_inv_line          (single cache line)
+ *  writeback_inv_region        (specified memory range)
+ *  writeback_inv_all           (entire cache)
+ *      Writes back to memory all dirty cache entries
+ *      that cache data from the specified memory range,
+ *      and invalidates these entries (including all clean
+ *      cache entries that cache data from that range).
+ *      NOTE: locked entries are written back but not invalidated.
+ *      NOTE: instruction caches never implement writeback.
+ *
+ *  lock_line                   (single cache line)
+ *  lock_region                 (specified memory range)
+ *      Prefetch and lock the specified memory range into cache.
+ *      NOTE:  if any part of the specified memory range cannot
+ *      be locked, a ??? exception occurs.  These macros don't
+ *      do anything special (yet anyway) to handle this situation.
+ *
+ *  unlock_line                 (single cache line)
+ *  unlock_region               (specified memory range)
+ *  unlock_all                  (entire cache)
+ *      Unlock cache entries that cache the specified memory range.
+ *      Entries not already locked are unaffected.
+ */
+
+
+
+/***************************   GENERIC -- ALL CACHES   ***************************/
+
+
+/*
+ *  The following macros assume the following cache size/parameter limits
+ *  in the current Xtensa core implementation:
+ *      cache size:     1024 bytes minimum
+ *      line size:      16 - 64 bytes
+ *      way count:      1 - 4
+ *
+ *  Minimum entries per way (ie. per associativity) = 1024 / 64 / 4 = 4
+ *  Hence the assumption that each loop can execute four cache instructions.
+ *
+ *  Correspondingly, the offset range of instructions is assumed able to cover
+ *  four lines, ie. offsets {0,1,2,3} * line_size are assumed valid for
+ *  both hit and indexed cache instructions.  Ie. these offsets are all
+ *  valid:  0, 16, 32, 48, 64, 96, 128, 192 (for line sizes 16, 32, 64).
+ *  This is true of all original cache instructions
+ *  (dhi, ihi, dhwb, dhwbi, dii, iii) which have offsets
+ *  of 0 to 1020 in multiples of 4 (ie. 8 bits shifted by 2).
+ *  This is also true of subsequent cache instructions
+ *  (dhu, ihu, diu, iiu, diwb, diwbi, dpfl, ipfl) which have offsets
+ *  of 0 to 240 in multiples of 16 (ie. 4 bits shifted by 4).
+ *
+ *  (Maximum cache size, currently 32k, doesn't affect the following macros.
+ *  Cache ways > MMU min page size cause aliasing but that's another matter.)
+ */
+
+
+
+/*
+ *  Macro to apply an 'indexed' cache instruction to the entire cache.
+ *
+ *  Parameters:
+ *      cainst          instruction/ that takes an address register parameter
+ *                      and an offset parameter (in range 0 .. 3*linesize).
+ *      size            size of cache in bytes
+ *      linesize        size of cache line in bytes
+ *      assoc_or1       number of associativities (ways/sets) in cache
+ *                      if all sets affected by cainst,
+ *                      or 1 if only one set (or not all sets) of the cache
+ *                      is affected by cainst (eg. DIWB or DIWBI [not yet ISA defined]).
+ *      aa, ab          unique address registers (temporaries)
+ */
+
+        .macro  cache_index_all         cainst, size, linesize, assoc_or1, aa, ab
+
+        //  Sanity-check on cache parameters:
+        .ifne   (\size % (\linesize * \assoc_or1 * 4))
+        .err    //  cache configuration outside expected/supported range!
+        .endif
+
+        //  \size byte cache, \linesize byte lines, \assoc_or1 way(s) affected by each \cainst.
+        movi    \aa, (\size / (\linesize * \assoc_or1 * 4))
+        // Possible improvement: need only loop if \aa > 1 ;
+        // however that particular condition is highly unlikely.
+        movi    \ab, 0          // to iterate over cache
+        floop           \aa, cachex\@
+        \cainst         \ab, 0*\linesize
+        \cainst         \ab, 1*\linesize
+        \cainst         \ab, 2*\linesize
+        \cainst         \ab, 3*\linesize
+        addi            \ab, \ab, 4*\linesize   // move to next line
+        floopend        \aa, cachex\@
+
+        .endm
+
+
+/*
+ *  Macro to apply a 'hit' cache instruction to a memory region,
+ *  ie. to any cache entries that cache a specified portion (region) of memory.
+ *  Takes care of the unaligned cases, ie. may apply to one
+ *  more cache line than $asize / lineSize if $aaddr is not aligned.
+ *
+ *
+ *  Parameters are:
+ *      cainst  instruction/macro that takes an address register parameter
+ *              and an offset parameter (currently always zero)
+ *              and generates a cache instruction (eg. "dhi", "dhwb", "ihi", etc.)
+ *      linesize_log2   log2(size of cache line in bytes)
+ *      addr    register containing start address of region (clobbered)
+ *      asize   register containing size of the region in bytes (clobbered)
+ *      askew   unique register used as temporary
+ *
+ * !?!?! 2DO: optimization: iterate max(cache_size and \asize) / linesize
+ */
+
+        .macro  cache_hit_region        cainst, linesize_log2, addr, asize, askew
+
+        //  Make \asize the number of iterations:
+        extui   \askew, \addr, 0, \linesize_log2        // get unalignment amount of \addr
+        add     \asize, \asize, \askew                  // ... and add it to \asize
+        addi    \asize, \asize, (1 << \linesize_log2) - 1       // round up!
+        srli    \asize, \asize, \linesize_log2
+
+        //  Iterate over region:
+        floopnez        \asize, cacheh\@
+        \cainst         \addr, 0
+        addi            \addr, \addr, (1 << \linesize_log2)     // move to next line
+        floopend        \asize, cacheh\@
+
+        .endm
+
+
+
+
+
+/***************************   INSTRUCTION CACHE   ***************************/
+
+
+/*
+ *  Reset/initialize the instruction cache by simply invalidating it:
+ *  (need to unlock first also, if cache locking implemented):
+ *
+ *  Parameters:
+ *      aa, ab          unique address registers (temporaries)
+ */
+        .macro  icache_reset    aa, ab
+        icache_unlock_all       \aa, \ab
+        icache_invalidate_all   \aa, \ab
+        .endm
+
+
+/*
+ * Synchronize after an instruction cache operation,
+ * to be sure everything is in sync with memory as to be
+ * expected following any previous instruction cache control operations.
+ *
+ * Parameters are:
+ *      ar      an address register (temporary) (currently unused, but may be used in future)
+ */
+        .macro  icache_sync     ar
+#if XCHAL_ICACHE_SIZE > 0
+        isync
+#endif
+        .endm
+
+
+
+/*
+ *  Invalidate a single line of the instruction cache.
+ *  Parameters are:
+ *      ar      address register that contains (virtual) address to invalidate
+ *              (may get clobbered in a future implementation, but not currently)
+ *      offset  (optional) offset to add to \ar to compute effective address to invalidate
+ *              (note: some number of lsbits are ignored)
+ */
+        .macro  icache_invalidate_line  ar, offset
+#if XCHAL_ICACHE_SIZE > 0
+        ihi     \ar, \offset            // invalidate icache line
+        /*
+         *  NOTE:  in some version of the silicon [!!!SHOULD HAVE BEEN DOCUMENTED!!!]
+         *  'ihi' doesn't work, so it had been replaced with 'iii'
+         *  (which would just invalidate more than it should,
+         *  which should be okay other than the performance hit
+         *  because cache locking did not exist in that version,
+         *  unless user somehow relies on something being cached).
+         *  [WHAT VERSION IS IT!!?!?
+         *  IS THERE ANY WAY TO TEST FOR THAT HERE, TO OUTPUT 'III' ONLY IF NEEDED!?!?].
+         *
+         *      iii     \ar, \offset
+         */
+        icache_sync     \ar
+#endif
+        .endm
+
+
+
+
+/*
+ *  Invalidate instruction  cache entries that cache a specified portion of memory.
+ *  Parameters are:
+ *      astart  start address (register gets clobbered)
+ *      asize   size of the region in bytes (register gets clobbered)
+ *      ac      unique register used as temporary
+ */
+        .macro  icache_invalidate_region        astart, asize, ac
+#if XCHAL_ICACHE_SIZE > 0
+        //  Instruction cache region invalidation:
+        cache_hit_region        ihi, XCHAL_ICACHE_LINEWIDTH, \astart, \asize, \ac
+        icache_sync     \ac
+        //  End of instruction cache region invalidation
+#endif
+        .endm
+
+
+
+/*
+ *  Invalidate entire instruction cache.
+ *
+ *  Parameters:
+ *      aa, ab          unique address registers (temporaries)
+ */
+        .macro  icache_invalidate_all   aa, ab
+#if XCHAL_ICACHE_SIZE > 0
+        //  Instruction cache invalidation:
+        cache_index_all         iii, XCHAL_ICACHE_SIZE, XCHAL_ICACHE_LINESIZE, XCHAL_ICACHE_WAYS, \aa, \ab
+        icache_sync     \aa
+        //  End of instruction cache invalidation
+#endif
+        .endm
+
+
+
+/*
+ *  Lock (prefetch & lock) a single line of the instruction cache.
+ *
+ *  Parameters are:
+ *      ar      address register that contains (virtual) address to lock
+ *              (may get clobbered in a future implementation, but not currently)
+ *      offset  offset to add to \ar to compute effective address to lock
+ *              (note: some number of lsbits are ignored)
+ */
+        .macro  icache_lock_line        ar, offset
+#if XCHAL_ICACHE_SIZE > 0 && XCHAL_ICACHE_LINE_LOCKABLE
+        ipfl    \ar, \offset    /* prefetch and lock icache line */
+        icache_sync     \ar
+#endif
+        .endm
+
+
+
+/*
+ *  Lock (prefetch & lock) a specified portion of memory into the instruction cache.
+ *  Parameters are:
+ *      astart  start address (register gets clobbered)
+ *      asize   size of the region in bytes (register gets clobbered)
+ *      ac      unique register used as temporary
+ */
+        .macro  icache_lock_region      astart, asize, ac
+#if XCHAL_ICACHE_SIZE > 0 && XCHAL_ICACHE_LINE_LOCKABLE
+        //  Instruction cache region lock:
+        cache_hit_region        ipfl, XCHAL_ICACHE_LINEWIDTH, \astart, \asize, \ac
+        icache_sync     \ac
+        //  End of instruction cache region lock
+#endif
+        .endm
+
+
+
+/*
+ *  Unlock a single line of the instruction cache.
+ *
+ *  Parameters are:
+ *      ar      address register that contains (virtual) address to unlock
+ *              (may get clobbered in a future implementation, but not currently)
+ *      offset  offset to add to \ar to compute effective address to unlock
+ *              (note: some number of lsbits are ignored)
+ */
+        .macro  icache_unlock_line      ar, offset
+#if XCHAL_ICACHE_SIZE > 0 && XCHAL_ICACHE_LINE_LOCKABLE
+        ihu     \ar, \offset    /* unlock icache line */
+        icache_sync     \ar
+#endif
+        .endm
+
+
+
+/*
+ *  Unlock a specified portion of memory from the instruction cache.
+ *  Parameters are:
+ *      astart  start address (register gets clobbered)
+ *      asize   size of the region in bytes (register gets clobbered)
+ *      ac      unique register used as temporary
+ */
+        .macro  icache_unlock_region    astart, asize, ac
+#if XCHAL_ICACHE_SIZE > 0 && XCHAL_ICACHE_LINE_LOCKABLE
+        //  Instruction cache region unlock:
+        cache_hit_region        ihu, XCHAL_ICACHE_LINEWIDTH, \astart, \asize, \ac
+        icache_sync     \ac
+        //  End of instruction cache region unlock
+#endif
+        .endm
+
+
+
+/*
+ *  Unlock entire instruction cache.
+ *
+ *  Parameters:
+ *      aa, ab          unique address registers (temporaries)
+ */
+        .macro  icache_unlock_all       aa, ab
+#if XCHAL_ICACHE_SIZE > 0 && XCHAL_ICACHE_LINE_LOCKABLE
+        //  Instruction cache unlock:
+        cache_index_all         iiu, XCHAL_ICACHE_SIZE, XCHAL_ICACHE_LINESIZE, 1, \aa, \ab
+        icache_sync     \aa
+        //  End of instruction cache unlock
+#endif
+        .endm
+
+
+
+
+
+/***************************   DATA CACHE   ***************************/
+
+
+
+/*
+ *  Reset/initialize the data cache by simply invalidating it
+ *  (need to unlock first also, if cache locking implemented):
+ *
+ *  Parameters:
+ *      aa, ab          unique address registers (temporaries)
+ */
+        .macro  dcache_reset    aa, ab
+        dcache_unlock_all       \aa, \ab
+        dcache_invalidate_all   \aa, \ab
+        .endm
+
+
+
+
+/*
+ * Synchronize after a data cache operation,
+ * to be sure everything is in sync with memory as to be
+ * expected following any previous data cache control operations.
+ *
+ * Parameters are:
+ *      ar      an address register (temporary) (currently unused, but may be used in future)
+ */
+        .macro  dcache_sync     ar
+#if XCHAL_DCACHE_SIZE > 0
+        //  This previous sequence errs on the conservative side (too much so); a DSYNC should be sufficient:
+        //memw          // synchronize data cache changes relative to subsequent memory accesses
+        //isync         // be conservative and ISYNC as well (just to be sure)
+
+        dsync
+#endif
+        .endm
+
+
+
+/*
+ * Synchronize after a data store operation,
+ * to be sure the stored data is completely off the processor
+ * (and assuming there is no buffering outside the processor,
+ *  that the data is in memory).  This may be required to
+ * ensure that the processor's write buffers are emptied.
+ * A MEMW followed by a read guarantees this, by definition.
+ * We also try to make sure the read itself completes.
+ *
+ * Parameters are:
+ *      ar      an address register (temporary)
+ */
+        .macro  write_sync      ar
+        memw                    // ensure previous memory accesses are complete prior to subsequent memory accesses
+        l32i    \ar, sp, 0      // completing this read ensures any previous write has completed, because of MEMW
+        //slot
+        add     \ar, \ar, \ar   // use the result of the read to help ensure the read completes (in future architectures)
+        .endm
+
+
+/*
+ *  Invalidate a single line of the data cache.
+ *  Parameters are:
+ *      ar      address register that contains (virtual) address to invalidate
+ *              (may get clobbered in a future implementation, but not currently)
+ *      offset  (optional) offset to add to \ar to compute effective address to invalidate
+ *              (note: some number of lsbits are ignored)
+ */
+        .macro  dcache_invalidate_line  ar, offset
+#if XCHAL_DCACHE_SIZE > 0
+        dhi     \ar, \offset
+        dcache_sync     \ar
+#endif
+        .endm
+
+
+
+
+
+/*
+ *  Invalidate data cache entries that cache a specified portion of memory.
+ *  Parameters are:
+ *      astart  start address (register gets clobbered)
+ *      asize   size of the region in bytes (register gets clobbered)
+ *      ac      unique register used as temporary
+ */
+        .macro  dcache_invalidate_region        astart, asize, ac
+#if XCHAL_DCACHE_SIZE > 0
+        //  Data cache region invalidation:
+        cache_hit_region        dhi, XCHAL_DCACHE_LINEWIDTH, \astart, \asize, \ac
+        dcache_sync     \ac
+        //  End of data cache region invalidation
+#endif
+        .endm
+
+
+
+#if 0
+/*
+ *  This is a work-around for a bug in SiChip1 (???).
+ *  There should be a proper mechanism for not outputting
+ *  these instructions when not needed.
+ *  To enable work-around, uncomment this and replace 'dii'
+ *  with 'dii_s1' everywhere, eg. in dcache_invalidate_all
+ *  macro below.
+ */
+        .macro  dii_s1  ar, offset
+        dii     \ar, \offset
+        or      \ar, \ar, \ar
+        or      \ar, \ar, \ar
+        or      \ar, \ar, \ar
+        or      \ar, \ar, \ar
+        .endm
+#endif
+
+
+/*
+ *  Invalidate entire data cache.
+ *
+ *  Parameters:
+ *      aa, ab          unique address registers (temporaries)
+ */
+        .macro  dcache_invalidate_all   aa, ab
+#if XCHAL_DCACHE_SIZE > 0
+        //  Data cache invalidation:
+        cache_index_all         dii, XCHAL_DCACHE_SIZE, XCHAL_DCACHE_LINESIZE, XCHAL_DCACHE_WAYS, \aa, \ab
+        dcache_sync     \aa
+        //  End of data cache invalidation
+#endif
+        .endm
+
+
+
+/*
+ *  Writeback a single line of the data cache.
+ *  Parameters are:
+ *      ar      address register that contains (virtual) address to writeback
+ *              (may get clobbered in a future implementation, but not currently)
+ *      offset  offset to add to \ar to compute effective address to writeback
+ *              (note: some number of lsbits are ignored)
+ */
+        .macro  dcache_writeback_line   ar, offset
+#if XCHAL_DCACHE_SIZE > 0 && XCHAL_DCACHE_IS_WRITEBACK
+        dhwb    \ar, \offset
+        dcache_sync     \ar
+#endif
+        .endm
+
+
+
+/*
+ *  Writeback dirty data cache entries that cache a specified portion of memory.
+ *  Parameters are:
+ *      astart  start address (register gets clobbered)
+ *      asize   size of the region in bytes (register gets clobbered)
+ *      ac      unique register used as temporary
+ */
+        .macro  dcache_writeback_region         astart, asize, ac
+#if XCHAL_DCACHE_SIZE > 0 && XCHAL_DCACHE_IS_WRITEBACK
+        //  Data cache region writeback:
+        cache_hit_region        dhwb, XCHAL_DCACHE_LINEWIDTH, \astart, \asize, \ac
+        dcache_sync     \ac
+        //  End of data cache region writeback
+#endif
+        .endm
+
+
+
+/*
+ *  Writeback entire data cache.
+ *  Parameters:
+ *      aa, ab          unique address registers (temporaries)
+ */
+        .macro  dcache_writeback_all    aa, ab
+#if XCHAL_DCACHE_SIZE > 0 && XCHAL_DCACHE_IS_WRITEBACK
+        //  Data cache writeback:
+        cache_index_all         diwb, XCHAL_DCACHE_SIZE, XCHAL_DCACHE_LINESIZE, 1, \aa, \ab
+        dcache_sync     \aa
+        //  End of data cache writeback
+#endif
+        .endm
+
+
+
+/*
+ *  Writeback and invalidate a single line of the data cache.
+ *  Parameters are:
+ *      ar      address register that contains (virtual) address to writeback and invalidate
+ *              (may get clobbered in a future implementation, but not currently)
+ *      offset  offset to add to \ar to compute effective address to writeback and invalidate
+ *              (note: some number of lsbits are ignored)
+ */
+        .macro  dcache_writeback_inv_line       ar, offset
+#if XCHAL_DCACHE_SIZE > 0
+        dhwbi   \ar, \offset    /* writeback and invalidate dcache line */
+        dcache_sync     \ar
+#endif
+        .endm
+
+
+
+/*
+ *  Writeback and invalidate data cache entries that cache a specified portion of memory.
+ *  Parameters are:
+ *      astart  start address (register gets clobbered)
+ *      asize   size of the region in bytes (register gets clobbered)
+ *      ac      unique register used as temporary
+ */
+        .macro  dcache_writeback_inv_region     astart, asize, ac
+#if XCHAL_DCACHE_SIZE > 0
+        //  Data cache region writeback and invalidate:
+        cache_hit_region        dhwbi, XCHAL_DCACHE_LINEWIDTH, \astart, \asize, \ac
+        dcache_sync     \ac
+        //  End of data cache region writeback and invalidate
+#endif
+        .endm
+
+
+
+/*
+ *  Writeback and invalidate entire data cache.
+ *  Parameters:
+ *      aa, ab          unique address registers (temporaries)
+ */
+        .macro  dcache_writeback_inv_all        aa, ab
+#if XCHAL_DCACHE_SIZE > 0
+        //  Data cache writeback and invalidate:
+#if XCHAL_DCACHE_IS_WRITEBACK
+        cache_index_all         diwbi, XCHAL_DCACHE_SIZE, XCHAL_DCACHE_LINESIZE, 1, \aa, \ab
+        dcache_sync     \aa
+#else /*writeback*/
+        //  Data cache does not support writeback, so just invalidate: */
+        dcache_invalidate_all   \aa, \ab
+#endif /*writeback*/
+        //  End of data cache writeback and invalidate
+#endif
+        .endm
+
+
+
+
+/*
+ *  Lock (prefetch & lock) a single line of the data cache.
+ *
+ *  Parameters are:
+ *      ar      address register that contains (virtual) address to lock
+ *              (may get clobbered in a future implementation, but not currently)
+ *      offset  offset to add to \ar to compute effective address to lock
+ *              (note: some number of lsbits are ignored)
+ */
+        .macro  dcache_lock_line        ar, offset
+#if XCHAL_DCACHE_SIZE > 0 && XCHAL_DCACHE_LINE_LOCKABLE
+        dpfl    \ar, \offset    /* prefetch and lock dcache line */
+        dcache_sync     \ar
+#endif
+        .endm
+
+
+
+/*
+ *  Lock (prefetch & lock) a specified portion of memory into the data cache.
+ *  Parameters are:
+ *      astart  start address (register gets clobbered)
+ *      asize   size of the region in bytes (register gets clobbered)
+ *      ac      unique register used as temporary
+ */
+        .macro  dcache_lock_region      astart, asize, ac
+#if XCHAL_DCACHE_SIZE > 0 && XCHAL_DCACHE_LINE_LOCKABLE
+        //  Data cache region lock:
+        cache_hit_region        dpfl, XCHAL_DCACHE_LINEWIDTH, \astart, \asize, \ac
+        dcache_sync     \ac
+        //  End of data cache region lock
+#endif
+        .endm
+
+
+
+/*
+ *  Unlock a single line of the data cache.
+ *
+ *  Parameters are:
+ *      ar      address register that contains (virtual) address to unlock
+ *              (may get clobbered in a future implementation, but not currently)
+ *      offset  offset to add to \ar to compute effective address to unlock
+ *              (note: some number of lsbits are ignored)
+ */
+        .macro  dcache_unlock_line      ar, offset
+#if XCHAL_DCACHE_SIZE > 0 && XCHAL_DCACHE_LINE_LOCKABLE
+        dhu     \ar, \offset    /* unlock dcache line */
+        dcache_sync     \ar
+#endif
+        .endm
+
+
+
+/*
+ *  Unlock a specified portion of memory from the data cache.
+ *  Parameters are:
+ *      astart  start address (register gets clobbered)
+ *      asize   size of the region in bytes (register gets clobbered)
+ *      ac      unique register used as temporary
+ */
+        .macro  dcache_unlock_region    astart, asize, ac
+#if XCHAL_DCACHE_SIZE > 0 && XCHAL_DCACHE_LINE_LOCKABLE
+        //  Data cache region unlock:
+        cache_hit_region        dhu, XCHAL_DCACHE_LINEWIDTH, \astart, \asize, \ac
+        dcache_sync     \ac
+        //  End of data cache region unlock
+#endif
+        .endm
+
+
+
+/*
+ *  Unlock entire data cache.
+ *
+ *  Parameters:
+ *      aa, ab          unique address registers (temporaries)
+ */
+        .macro  dcache_unlock_all       aa, ab
+#if XCHAL_DCACHE_SIZE > 0 && XCHAL_DCACHE_LINE_LOCKABLE
+        //  Data cache unlock:
+        cache_index_all         diu, XCHAL_DCACHE_SIZE, XCHAL_DCACHE_LINESIZE, 1, \aa, \ab
+        dcache_sync     \aa
+        //  End of data cache unlock
+#endif
+        .endm
+
+
+#endif /*XTENSA_CACHEASM_H*/
+
diff --git a/include/asm-xtensa/xtensa/cacheattrasm.h b/include/asm-xtensa/xtensa/cacheattrasm.h
new file mode 100644
index 000000000000..1c3e117b3592
--- /dev/null
+++ b/include/asm-xtensa/xtensa/cacheattrasm.h
@@ -0,0 +1,432 @@
+#ifndef XTENSA_CACHEATTRASM_H
+#define XTENSA_CACHEATTRASM_H
+
+/*
+ * THIS FILE IS GENERATED -- DO NOT MODIFY BY HAND
+ *
+ * include/asm-xtensa/xtensa/cacheattrasm.h -- assembler-specific
+ * CACHEATTR register related definitions that depend on CORE
+ * configuration.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2002 Tensilica Inc.
+ */
+
+
+#include <xtensa/coreasm.h>
+
+
+/*
+ *  This header file defines assembler macros of the form:
+ *      <x>cacheattr_<func>
+ *  where:
+ *      <x> is 'i', 'd' or absent for instruction, data
+ *              or both caches; and
+ *      <func> indicates the function of the macro.
+ *
+ *  The following functions are defined:
+ *
+ *  icacheattr_get
+ *      Reads I-cache CACHEATTR into a2 (clobbers a3-a5).
+ *
+ *  dcacheattr_get
+ *      Reads D-cache CACHEATTR into a2 (clobbers a3-a5).
+ *      (Note:  for configs with a real CACHEATTR register, the
+ *       above two macros are identical.)
+ *
+ *  cacheattr_set
+ *      Writes both I-cache and D-cache CACHEATTRs from a2 (a3-a8 clobbered).
+ *      Works even when changing one's own code's attributes.
+ *
+ *  icacheattr_is_enabled  label
+ *      Branches to \label if I-cache appears to have been enabled
+ *      (eg. if CACHEATTR contains a cache-enabled attribute).
+ *      (clobbers a2-a5,SAR)
+ *
+ *  dcacheattr_is_enabled  label
+ *      Branches to \label if D-cache appears to have been enabled
+ *      (eg. if CACHEATTR contains a cache-enabled attribute).
+ *      (clobbers a2-a5,SAR)
+ *
+ *  cacheattr_is_enabled  label
+ *      Branches to \label if either I-cache or D-cache appears to have been enabled
+ *      (eg. if CACHEATTR contains a cache-enabled attribute).
+ *      (clobbers a2-a5,SAR)
+ *
+ *  The following macros are only defined under certain conditions:
+ *
+ *  icacheattr_set      (if XCHAL_HAVE_MIMIC_CACHEATTR || XCHAL_HAVE_XLT_CACHEATTR)
+ *      Writes I-cache CACHEATTR from a2 (a3-a8 clobbered).
+ *
+ *  dcacheattr_set      (if XCHAL_HAVE_MIMIC_CACHEATTR || XCHAL_HAVE_XLT_CACHEATTR)
+ *      Writes D-cache CACHEATTR from a2 (a3-a8 clobbered).
+ */
+
+
+
+/***************************   GENERIC -- ALL CACHES   ***************************/
+
+/*
+ *  _cacheattr_get
+ *
+ *  (Internal macro.)
+ *  Returns value of CACHEATTR register (or closest equivalent) in a2.
+ *
+ *  Entry:
+ *      (none)
+ *  Exit:
+ *      a2      value read from CACHEATTR
+ *      a3-a5   clobbered (temporaries)
+ */
+        .macro  _cacheattr_get  tlb
+#if XCHAL_HAVE_CACHEATTR
+        rsr     a2, CACHEATTR
+#elif XCHAL_HAVE_MIMIC_CACHEATTR || XCHAL_HAVE_XLT_CACHEATTR
+        //  We have a config that "mimics" CACHEATTR using a simplified
+        //  "MMU" composed of a single statically-mapped way.
+        //  DTLB and ITLB are independent, so there's no single
+        //  cache attribute that can describe both.  So for now
+        //  just return the DTLB state.
+        movi    a5, 0xE0000000
+        movi    a2, 0
+        movi    a3, 0
+1:      add     a3, a3, a5      // next segment
+        r&tlb&1 a4, a3          // get PPN+CA of segment at 0xE0000000, 0xC0000000, ..., 0
+        dsync   // interlock???
+        slli    a2, a2, 4
+        extui   a4, a4, 0, 4    // extract CA
+        or      a2, a2, a4
+        bnez    a3, 1b
+#else
+        //  This macro isn't applicable to arbitrary MMU configurations.
+        //  Just return zero.
+        movi    a2, 0
+#endif
+        .endm
+
+        .macro  icacheattr_get
+        _cacheattr_get  itlb
+        .endm
+
+        .macro  dcacheattr_get
+        _cacheattr_get  dtlb
+        .endm
+
+
+#define XCHAL_CACHEATTR_ALL_BYPASS      0x22222222      /* default (powerup/reset) value of CACHEATTR, all BYPASS
+                                                           mode (ie. disabled/bypassed caches) */
+
+#if XCHAL_HAVE_CACHEATTR || XCHAL_HAVE_MIMIC_CACHEATTR || XCHAL_HAVE_XLT_CACHEATTR
+
+#define XCHAL_FCA_ENAMASK       0x001A  /* bitmap of fetch attributes that require enabled icache */
+#define XCHAL_LCA_ENAMASK       0x0003  /* bitmap of load  attributes that require enabled dcache */
+#define XCHAL_SCA_ENAMASK       0x0003  /* bitmap of store attributes that require enabled dcache */
+#define XCHAL_LSCA_ENAMASK      (XCHAL_LCA_ENAMASK|XCHAL_SCA_ENAMASK)   /* l/s attrs requiring enabled dcache */
+#define XCHAL_ALLCA_ENAMASK     (XCHAL_FCA_ENAMASK|XCHAL_LSCA_ENAMASK)  /* all attrs requiring enabled caches */
+
+/*
+ *  _cacheattr_is_enabled
+ *
+ *  (Internal macro.)
+ *  Branches to \label if CACHEATTR in a2 indicates an enabled
+ *  cache, using mask in a3.
+ *
+ *  Parameters:
+ *      label   where to branch to if cache is enabled
+ *  Entry:
+ *      a2      contains CACHEATTR value used to determine whether
+ *              caches are enabled
+ *      a3      16-bit constant where each bit correspond to
+ *              one of the 16 possible CA values (in a CACHEATTR mask);
+ *              CA values that indicate the cache is enabled
+ *              have their corresponding bit set in this mask
+ *              (eg. use XCHAL_xCA_ENAMASK , above)
+ *  Exit:
+ *      a2,a4,a5        clobbered
+ *      SAR             clobbered
+ */
+        .macro  _cacheattr_is_enabled   label
+        movi    a4, 8           // loop 8 times
+.Lcaife\@:
+        extui   a5, a2, 0, 4    // get CA nibble
+        ssr     a5              // index into mask according to CA...
+        srl     a5, a3          // ...and get CA's mask bit in a5 bit 0
+        bbsi.l  a5, 0, \label   // if CA indicates cache enabled, jump to label
+        srli    a2, a2, 4       // next nibble
+        addi    a4, a4, -1
+        bnez    a4, .Lcaife\@   // loop for each nibble
+        .endm
+
+#else /* XCHAL_HAVE_CACHEATTR || XCHAL_HAVE_MIMIC_CACHEATTR || XCHAL_HAVE_XLT_CACHEATTR */
+        .macro  _cacheattr_is_enabled   label
+        j       \label          // macro not applicable, assume caches always enabled
+        .endm
+#endif /* XCHAL_HAVE_CACHEATTR || XCHAL_HAVE_MIMIC_CACHEATTR || XCHAL_HAVE_XLT_CACHEATTR */
+
+
+
+/*
+ *  icacheattr_is_enabled
+ *
+ *  Branches to \label if I-cache is enabled.
+ *
+ *  Parameters:
+ *      label   where to branch to if icache is enabled
+ *  Entry:
+ *      (none)
+ *  Exit:
+ *      a2-a5, SAR      clobbered (temporaries)
+ */
+        .macro  icacheattr_is_enabled   label
+#if XCHAL_HAVE_CACHEATTR || XCHAL_HAVE_MIMIC_CACHEATTR || XCHAL_HAVE_XLT_CACHEATTR
+        icacheattr_get
+        movi    a3, XCHAL_FCA_ENAMASK
+#endif
+        _cacheattr_is_enabled   \label
+        .endm
+
+/*
+ *  dcacheattr_is_enabled
+ *
+ *  Branches to \label if D-cache is enabled.
+ *
+ *  Parameters:
+ *      label   where to branch to if dcache is enabled
+ *  Entry:
+ *      (none)
+ *  Exit:
+ *      a2-a5, SAR      clobbered (temporaries)
+ */
+        .macro  dcacheattr_is_enabled   label
+#if XCHAL_HAVE_CACHEATTR || XCHAL_HAVE_MIMIC_CACHEATTR || XCHAL_HAVE_XLT_CACHEATTR
+        dcacheattr_get
+        movi    a3, XCHAL_LSCA_ENAMASK
+#endif
+        _cacheattr_is_enabled   \label
+        .endm
+
+/*
+ *  cacheattr_is_enabled
+ *
+ *  Branches to \label if either I-cache or D-cache is enabled.
+ *
+ *  Parameters:
+ *      label   where to branch to if a cache is enabled
+ *  Entry:
+ *      (none)
+ *  Exit:
+ *      a2-a5, SAR      clobbered (temporaries)
+ */
+        .macro  cacheattr_is_enabled    label
+#if XCHAL_HAVE_CACHEATTR
+        rsr     a2, CACHEATTR
+        movi    a3, XCHAL_ALLCA_ENAMASK
+#elif XCHAL_HAVE_MIMIC_CACHEATTR || XCHAL_HAVE_XLT_CACHEATTR
+        icacheattr_get
+        movi    a3, XCHAL_FCA_ENAMASK
+        _cacheattr_is_enabled   \label
+        dcacheattr_get
+        movi    a3, XCHAL_LSCA_ENAMASK
+#endif
+        _cacheattr_is_enabled   \label
+        .endm
+
+
+
+/*
+ *  The ISA does not have a defined way to change the
+ *  instruction cache attributes of the running code,
+ *  ie. of the memory area that encloses the current PC.
+ *  However, each micro-architecture (or class of
+ *  configurations within a micro-architecture)
+ *  provides a way to deal with this issue.
+ *
+ *  Here are a few macros used to implement the relevant
+ *  approach taken.
+ */
+
+#if XCHAL_HAVE_MIMIC_CACHEATTR || XCHAL_HAVE_XLT_CACHEATTR
+        //  We have a config that "mimics" CACHEATTR using a simplified
+        //  "MMU" composed of a single statically-mapped way.
+
+/*
+ *  icacheattr_set
+ *
+ *  Entry:
+ *      a2              cacheattr value to set
+ *  Exit:
+ *      a2              unchanged
+ *      a3-a8           clobbered (temporaries)
+ */
+        .macro  icacheattr_set
+
+        movi    a5, 0xE0000000  // mask of upper 3 bits
+        movi    a6, 3f          // PC where ITLB is set
+        movi    a3, 0           // start at region 0 (0 .. 7)
+        and     a6, a6, a5      // upper 3 bits of local PC area
+        mov     a7, a2          // copy a2 so it doesn't get clobbered
+        j       3f
+
+# if XCHAL_HAVE_XLT_CACHEATTR
+        //  Can do translations, use generic method:
+1:      sub     a6, a3, a5      // address of some other segment
+        ritlb1  a8, a6          // save its PPN+CA
+        dsync   // interlock??
+        witlb   a4, a6          // make it translate to this code area
+        movi    a6, 5f          // where to jump into it
+        isync
+        sub     a6, a6, a5      // adjust jump address within that other segment
+        jx      a6
+
+        //  Note that in the following code snippet, which runs at a different virtual
+        //  address than it is assembled for, we avoid using literals (eg. via movi/l32r)
+        //  just in case literals end up in a different 512 MB segment, and we avoid
+        //  instructions that rely on the current PC being what is expected.
+        //
+        .align  4
+        _j      6f              // this is at label '5' minus 4 bytes
+        .align  4
+5:      witlb   a4, a3          // we're in other segment, now can write previous segment's CA
+        isync
+        add     a6, a6, a5      // back to previous segment
+        addi    a6, a6, -4      // next jump label
+        jx      a6
+
+6:      sub     a6, a3, a5      // address of some other segment
+        witlb   a8, a6          // restore PPN+CA of other segment
+        mov     a6, a3          // restore a6
+        isync
+# else /* XCHAL_HAVE_XLT_CACHEATTR */
+        //  Use micro-architecture specific method.
+        //  The following 4-instruction sequence is aligned such that
+        //  it all fits within a single I-cache line.  Sixteen byte
+        //  alignment is sufficient for this (using XCHAL_ICACHE_LINESIZE
+        //  actually causes problems because that can be greater than
+        //  the alignment of the reset vector, where this macro is often
+        //  invoked, which would cause the linker to align the reset
+        //  vector code away from the reset vector!!).
+        .align  16 /*XCHAL_ICACHE_LINESIZE*/
+1:      _witlb  a4, a3          // write wired PTE (CA, no PPN) of 512MB segment to ITLB
+        _isync
+        nop
+        nop
+# endif /* XCHAL_HAVE_XLT_CACHEATTR */
+        beq     a3, a5, 4f      // done?
+
+        //  Note that in the WITLB loop, we don't do any load/stores
+        //  (may not be an issue here, but it is important in the DTLB case).
+2:      srli    a7, a7, 4       // next CA
+        sub     a3, a3, a5      // next segment (add 0x20000000)
+3:
+# if XCHAL_HAVE_XLT_CACHEATTR   /* if have translation, preserve it */
+        ritlb1  a8, a3          // get current PPN+CA of segment
+        dsync   // interlock???
+        extui   a4, a7, 0, 4    // extract CA to set
+        srli    a8, a8, 4       // clear CA but keep PPN ...
+        slli    a8, a8, 4       // ...
+        add     a4, a4, a8      // combine new CA with PPN to preserve
+# else
+        extui   a4, a7, 0, 4    // extract CA
+# endif
+        beq     a3, a6, 1b      // current PC's region? if so, do it in a safe way
+        witlb   a4, a3          // write wired PTE (CA [+PPN]) of 512MB segment to ITLB
+        bne     a3, a5, 2b
+        isync                   // make sure all ifetch changes take effect
+4:
+        .endm   // icacheattr_set
+
+
+/*
+ *  dcacheattr_set
+ *
+ *  Entry:
+ *      a2              cacheattr value to set
+ *  Exit:
+ *      a2              unchanged
+ *      a3-a8           clobbered (temporaries)
+ */
+
+        .macro  dcacheattr_set
+
+        movi    a5, 0xE0000000  // mask of upper 3 bits
+        movi    a3, 0           // start at region 0 (0 .. 7)
+        mov     a7, a2          // copy a2 so it doesn't get clobbered
+        j       3f
+        //  Note that in the WDTLB loop, we don't do any load/stores
+        //  (including implicit l32r via movi) because it isn't safe.
+2:      srli    a7, a7, 4       // next CA
+        sub     a3, a3, a5      // next segment (add 0x20000000)
+3:
+# if XCHAL_HAVE_XLT_CACHEATTR   /* if have translation, preserve it */
+        rdtlb1  a8, a3          // get current PPN+CA of segment
+        dsync   // interlock???
+        extui   a4, a7, 0, 4    // extract CA to set
+        srli    a8, a8, 4       // clear CA but keep PPN ...
+        slli    a8, a8, 4       // ...
+        add     a4, a4, a8      // combine new CA with PPN to preserve
+# else
+        extui   a4, a7, 0, 4    // extract CA to set
+# endif
+        wdtlb   a4, a3          // write wired PTE (CA [+PPN]) of 512MB segment to DTLB
+        bne     a3, a5, 2b
+        dsync                   // make sure all data path changes take effect
+        .endm   // dcacheattr_set
+
+#endif /* XCHAL_HAVE_MIMIC_CACHEATTR || XCHAL_HAVE_XLT_CACHEATTR */
+
+
+
+/*
+ *  cacheattr_set
+ *
+ *  Macro that sets the current CACHEATTR safely
+ *  (both i and d) according to the current contents of a2.
+ *  It works even when changing the cache attributes of
+ *  the currently running code.
+ *
+ *  Entry:
+ *      a2              cacheattr value to set
+ *  Exit:
+ *      a2              unchanged
+ *      a3-a8           clobbered (temporaries)
+ */
+        .macro  cacheattr_set
+
+#if XCHAL_HAVE_CACHEATTR
+# if XCHAL_ICACHE_LINESIZE < 4
+        //  No i-cache, so can always safely write to CACHEATTR:
+        wsr     a2, CACHEATTR
+# else
+        //  The Athens micro-architecture, when using the old
+        //  exception architecture option (ie. with the CACHEATTR register)
+        //  allows changing the cache attributes of the running code
+        //  using the following exact sequence aligned to be within
+        //  an instruction cache line.  (NOTE: using XCHAL_ICACHE_LINESIZE
+        //  alignment actually causes problems because that can be greater
+        //  than the alignment of the reset vector, where this macro is often
+        //  invoked, which would cause the linker to align the reset
+        //  vector code away from the reset vector!!).
+        j       1f
+        .align  16 /*XCHAL_ICACHE_LINESIZE*/    // align to within an I-cache line
+1:      _wsr    a2, CACHEATTR
+        _isync
+        nop
+        nop
+# endif
+#elif XCHAL_HAVE_MIMIC_CACHEATTR || XCHAL_HAVE_XLT_CACHEATTR
+        //  DTLB and ITLB are independent, but to keep semantics
+        //  of this macro we simply write to both.
+        icacheattr_set
+        dcacheattr_set
+#else
+        //  This macro isn't applicable to arbitrary MMU configurations.
+        //  Do nothing in this case.
+#endif
+        .endm
+
+
+#endif /*XTENSA_CACHEATTRASM_H*/
+
diff --git a/include/asm-xtensa/xtensa/config-linux_be/core.h b/include/asm-xtensa/xtensa/config-linux_be/core.h
new file mode 100644
index 000000000000..d54fe5eb1064
--- /dev/null
+++ b/include/asm-xtensa/xtensa/config-linux_be/core.h
@@ -0,0 +1,1270 @@
+/*
+ * xtensa/config/core.h -- HAL definitions that are dependent on CORE configuration
+ *
+ *  This header file is sometimes referred to as the "compile-time HAL" or CHAL.
+ *  It was generated for a specific Xtensa processor configuration.
+ *
+ *  Source for configuration-independent binaries (which link in a
+ *  configuration-specific HAL library) must NEVER include this file.
+ *  It is perfectly normal, however, for the HAL source itself to include this file.
+ */
+
+/*
+ * Copyright (c) 2003 Tensilica, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2.1 of the GNU Lesser General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, write the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307,
+ * USA.
+ */
+
+
+#ifndef XTENSA_CONFIG_CORE_H
+#define XTENSA_CONFIG_CORE_H
+
+#include <xtensa/hal.h>
+
+
+/*----------------------------------------------------------------------
+                                GENERAL
+  ----------------------------------------------------------------------*/
+
+/*
+ *  Separators for macros that expand into arrays.
+ *  These can be predefined by files that #include this one,
+ *  when different separators are required.
+ */
+/*  Element separator for macros that expand into 1-dimensional arrays:  */
+#ifndef XCHAL_SEP
+#define XCHAL_SEP                       ,
+#endif
+/*  Array separator for macros that expand into 2-dimensional arrays:  */
+#ifndef XCHAL_SEP2
+#define XCHAL_SEP2                      },{
+#endif
+
+
+/*----------------------------------------------------------------------
+                                ENDIANNESS
+  ----------------------------------------------------------------------*/
+
+#define XCHAL_HAVE_BE                   1
+#define XCHAL_HAVE_LE                   0
+#define XCHAL_MEMORY_ORDER              XTHAL_BIGENDIAN
+
+
+/*----------------------------------------------------------------------
+                                REGISTER WINDOWS
+  ----------------------------------------------------------------------*/
+
+#define XCHAL_HAVE_WINDOWED             1       /* 1 if windowed registers option configured, 0 otherwise */
+#define XCHAL_NUM_AREGS                 64      /* number of physical address regs */
+#define XCHAL_NUM_AREGS_LOG2            6       /* log2(XCHAL_NUM_AREGS) */
+
+
+/*----------------------------------------------------------------------
+                                ADDRESS ALIGNMENT
+  ----------------------------------------------------------------------*/
+
+/*  These apply to a selected set of core load and store instructions only (see ISA):  */
+#define XCHAL_UNALIGNED_LOAD_EXCEPTION  1       /* 1 if unaligned loads cause an exception, 0 otherwise */
+#define XCHAL_UNALIGNED_STORE_EXCEPTION 1       /* 1 if unaligned stores cause an exception, 0 otherwise */
+
+
+/*----------------------------------------------------------------------
+                                INTERRUPTS
+  ----------------------------------------------------------------------*/
+
+#define XCHAL_HAVE_INTERRUPTS           1       /* 1 if interrupt option configured, 0 otherwise */
+#define XCHAL_HAVE_HIGHPRI_INTERRUPTS   1       /* 1 if high-priority interrupt option configured, 0 otherwise */
+#define XCHAL_HAVE_HIGHLEVEL_INTERRUPTS XCHAL_HAVE_HIGHPRI_INTERRUPTS
+#define XCHAL_HAVE_NMI                  0       /* 1 if NMI option configured, 0 otherwise */
+#define XCHAL_NUM_INTERRUPTS            17      /* number of interrupts */
+#define XCHAL_NUM_INTERRUPTS_LOG2       5       /* number of bits to hold an interrupt number: roundup(log2(number of interrupts)) */
+#define XCHAL_NUM_EXTINTERRUPTS         10      /* number of external interrupts */
+#define XCHAL_NUM_INTLEVELS             4       /* number of interrupt levels (not including level zero!) */
+#define XCHAL_NUM_LOWPRI_LEVELS         1                       /* number of low-priority interrupt levels (always 1) */
+#define XCHAL_FIRST_HIGHPRI_LEVEL       (XCHAL_NUM_LOWPRI_LEVELS+1)     /* level of first high-priority interrupt (always 2) */
+#define XCHAL_EXCM_LEVEL                1                       /* level of interrupts masked by PS.EXCM (XEA2 only; always 1 in T10xx);
+                                                                   for XEA1, where there is no PS.EXCM, this is always 1;
+                                                                   interrupts at levels FIRST_HIGHPRI <= n <= EXCM_LEVEL, if any,
+                                                                   are termed "medium priority" interrupts (post T10xx only) */
+/*  Note:  1 <= LOWPRI_LEVELS <= EXCM_LEVEL < DEBUGLEVEL <= NUM_INTLEVELS < NMILEVEL <= 15  */
+
+/*  Masks of interrupts at each interrupt level:  */
+#define XCHAL_INTLEVEL0_MASK            0x00000000
+#define XCHAL_INTLEVEL1_MASK            0x000064F9
+#define XCHAL_INTLEVEL2_MASK            0x00008902
+#define XCHAL_INTLEVEL3_MASK            0x00011204
+#define XCHAL_INTLEVEL4_MASK            0x00000000
+#define XCHAL_INTLEVEL5_MASK            0x00000000
+#define XCHAL_INTLEVEL6_MASK            0x00000000
+#define XCHAL_INTLEVEL7_MASK            0x00000000
+#define XCHAL_INTLEVEL8_MASK            0x00000000
+#define XCHAL_INTLEVEL9_MASK            0x00000000
+#define XCHAL_INTLEVEL10_MASK           0x00000000
+#define XCHAL_INTLEVEL11_MASK           0x00000000
+#define XCHAL_INTLEVEL12_MASK           0x00000000
+#define XCHAL_INTLEVEL13_MASK           0x00000000
+#define XCHAL_INTLEVEL14_MASK           0x00000000
+#define XCHAL_INTLEVEL15_MASK           0x00000000
+/*  As an array of entries (eg. for C constant arrays):  */
+#define XCHAL_INTLEVEL_MASKS            0x00000000      XCHAL_SEP \
+                                        0x000064F9      XCHAL_SEP \
+                                        0x00008902      XCHAL_SEP \
+                                        0x00011204      XCHAL_SEP \
+                                        0x00000000      XCHAL_SEP \
+                                        0x00000000      XCHAL_SEP \
+                                        0x00000000      XCHAL_SEP \
+                                        0x00000000      XCHAL_SEP \
+                                        0x00000000      XCHAL_SEP \
+                                        0x00000000      XCHAL_SEP \
+                                        0x00000000      XCHAL_SEP \
+                                        0x00000000      XCHAL_SEP \
+                                        0x00000000      XCHAL_SEP \
+                                        0x00000000      XCHAL_SEP \
+                                        0x00000000      XCHAL_SEP \
+                                        0x00000000
+
+/*  Masks of interrupts at each range 1..n of interrupt levels:  */
+#define XCHAL_INTLEVEL0_ANDBELOW_MASK   0x00000000
+#define XCHAL_INTLEVEL1_ANDBELOW_MASK   0x000064F9
+#define XCHAL_INTLEVEL2_ANDBELOW_MASK   0x0000EDFB
+#define XCHAL_INTLEVEL3_ANDBELOW_MASK   0x0001FFFF
+#define XCHAL_INTLEVEL4_ANDBELOW_MASK   0x0001FFFF
+#define XCHAL_INTLEVEL5_ANDBELOW_MASK   0x0001FFFF
+#define XCHAL_INTLEVEL6_ANDBELOW_MASK   0x0001FFFF
+#define XCHAL_INTLEVEL7_ANDBELOW_MASK   0x0001FFFF
+#define XCHAL_INTLEVEL8_ANDBELOW_MASK   0x0001FFFF
+#define XCHAL_INTLEVEL9_ANDBELOW_MASK   0x0001FFFF
+#define XCHAL_INTLEVEL10_ANDBELOW_MASK  0x0001FFFF
+#define XCHAL_INTLEVEL11_ANDBELOW_MASK  0x0001FFFF
+#define XCHAL_INTLEVEL12_ANDBELOW_MASK  0x0001FFFF
+#define XCHAL_INTLEVEL13_ANDBELOW_MASK  0x0001FFFF
+#define XCHAL_INTLEVEL14_ANDBELOW_MASK  0x0001FFFF
+#define XCHAL_INTLEVEL15_ANDBELOW_MASK  0x0001FFFF
+#define XCHAL_LOWPRI_MASK               XCHAL_INTLEVEL1_ANDBELOW_MASK   /* mask of all low-priority interrupts */
+#define XCHAL_EXCM_MASK                 XCHAL_INTLEVEL1_ANDBELOW_MASK   /* mask of all interrupts masked by PS.EXCM (or CEXCM) */
+/*  As an array of entries (eg. for C constant arrays):  */
+#define XCHAL_INTLEVEL_ANDBELOW_MASKS   0x00000000      XCHAL_SEP \
+                                        0x000064F9      XCHAL_SEP \
+                                        0x0000EDFB      XCHAL_SEP \
+                                        0x0001FFFF      XCHAL_SEP \
+                                        0x0001FFFF      XCHAL_SEP \
+                                        0x0001FFFF      XCHAL_SEP \
+                                        0x0001FFFF      XCHAL_SEP \
+                                        0x0001FFFF      XCHAL_SEP \
+                                        0x0001FFFF      XCHAL_SEP \
+                                        0x0001FFFF      XCHAL_SEP \
+                                        0x0001FFFF      XCHAL_SEP \
+                                        0x0001FFFF      XCHAL_SEP \
+                                        0x0001FFFF      XCHAL_SEP \
+                                        0x0001FFFF      XCHAL_SEP \
+                                        0x0001FFFF      XCHAL_SEP \
+                                        0x0001FFFF
+
+/*  Interrupt numbers for each interrupt level at which only one interrupt was configured:  */
+/*#define XCHAL_INTLEVEL1_NUM           ...more than one interrupt at this level...*/
+/*#define XCHAL_INTLEVEL2_NUM           ...more than one interrupt at this level...*/
+/*#define XCHAL_INTLEVEL3_NUM           ...more than one interrupt at this level...*/
+
+/*  Level of each interrupt:  */
+#define XCHAL_INT0_LEVEL                1
+#define XCHAL_INT1_LEVEL                2
+#define XCHAL_INT2_LEVEL                3
+#define XCHAL_INT3_LEVEL                1
+#define XCHAL_INT4_LEVEL                1
+#define XCHAL_INT5_LEVEL                1
+#define XCHAL_INT6_LEVEL                1
+#define XCHAL_INT7_LEVEL                1
+#define XCHAL_INT8_LEVEL                2
+#define XCHAL_INT9_LEVEL                3
+#define XCHAL_INT10_LEVEL               1
+#define XCHAL_INT11_LEVEL               2
+#define XCHAL_INT12_LEVEL               3
+#define XCHAL_INT13_LEVEL               1
+#define XCHAL_INT14_LEVEL               1
+#define XCHAL_INT15_LEVEL               2
+#define XCHAL_INT16_LEVEL               3
+#define XCHAL_INT17_LEVEL               0
+#define XCHAL_INT18_LEVEL               0
+#define XCHAL_INT19_LEVEL               0
+#define XCHAL_INT20_LEVEL               0
+#define XCHAL_INT21_LEVEL               0
+#define XCHAL_INT22_LEVEL               0
+#define XCHAL_INT23_LEVEL               0
+#define XCHAL_INT24_LEVEL               0
+#define XCHAL_INT25_LEVEL               0
+#define XCHAL_INT26_LEVEL               0
+#define XCHAL_INT27_LEVEL               0
+#define XCHAL_INT28_LEVEL               0
+#define XCHAL_INT29_LEVEL               0
+#define XCHAL_INT30_LEVEL               0
+#define XCHAL_INT31_LEVEL               0
+/*  As an array of entries (eg. for C constant arrays):  */
+#define XCHAL_INT_LEVELS                1       XCHAL_SEP \
+                                        2       XCHAL_SEP \
+                                        3       XCHAL_SEP \
+                                        1       XCHAL_SEP \
+                                        1       XCHAL_SEP \
+                                        1       XCHAL_SEP \
+                                        1       XCHAL_SEP \
+                                        1       XCHAL_SEP \
+                                        2       XCHAL_SEP \
+                                        3       XCHAL_SEP \
+                                        1       XCHAL_SEP \
+                                        2       XCHAL_SEP \
+                                        3       XCHAL_SEP \
+                                        1       XCHAL_SEP \
+                                        1       XCHAL_SEP \
+                                        2       XCHAL_SEP \
+                                        3       XCHAL_SEP \
+                                        0       XCHAL_SEP \
+                                        0       XCHAL_SEP \
+                                        0       XCHAL_SEP \
+                                        0       XCHAL_SEP \
+                                        0       XCHAL_SEP \
+                                        0       XCHAL_SEP \
+                                        0       XCHAL_SEP \
+                                        0       XCHAL_SEP \
+                                        0       XCHAL_SEP \
+                                        0       XCHAL_SEP \
+                                        0       XCHAL_SEP \
+                                        0       XCHAL_SEP \
+                                        0       XCHAL_SEP \
+                                        0       XCHAL_SEP \
+                                        0
+
+/*  Type of each interrupt:  */
+#define XCHAL_INT0_TYPE         XTHAL_INTTYPE_EXTERN_LEVEL
+#define XCHAL_INT1_TYPE         XTHAL_INTTYPE_EXTERN_LEVEL
+#define XCHAL_INT2_TYPE         XTHAL_INTTYPE_EXTERN_LEVEL
+#define XCHAL_INT3_TYPE         XTHAL_INTTYPE_EXTERN_LEVEL
+#define XCHAL_INT4_TYPE         XTHAL_INTTYPE_EXTERN_LEVEL
+#define XCHAL_INT5_TYPE         XTHAL_INTTYPE_EXTERN_LEVEL
+#define XCHAL_INT6_TYPE         XTHAL_INTTYPE_EXTERN_LEVEL
+#define XCHAL_INT7_TYPE         XTHAL_INTTYPE_EXTERN_EDGE
+#define XCHAL_INT8_TYPE         XTHAL_INTTYPE_EXTERN_EDGE
+#define XCHAL_INT9_TYPE         XTHAL_INTTYPE_EXTERN_EDGE
+#define XCHAL_INT10_TYPE        XTHAL_INTTYPE_TIMER
+#define XCHAL_INT11_TYPE        XTHAL_INTTYPE_TIMER
+#define XCHAL_INT12_TYPE        XTHAL_INTTYPE_TIMER
+#define XCHAL_INT13_TYPE        XTHAL_INTTYPE_SOFTWARE
+#define XCHAL_INT14_TYPE        XTHAL_INTTYPE_SOFTWARE
+#define XCHAL_INT15_TYPE        XTHAL_INTTYPE_SOFTWARE
+#define XCHAL_INT16_TYPE        XTHAL_INTTYPE_SOFTWARE
+#define XCHAL_INT17_TYPE        XTHAL_INTTYPE_UNCONFIGURED
+#define XCHAL_INT18_TYPE        XTHAL_INTTYPE_UNCONFIGURED
+#define XCHAL_INT19_TYPE        XTHAL_INTTYPE_UNCONFIGURED
+#define XCHAL_INT20_TYPE        XTHAL_INTTYPE_UNCONFIGURED
+#define XCHAL_INT21_TYPE        XTHAL_INTTYPE_UNCONFIGURED
+#define XCHAL_INT22_TYPE        XTHAL_INTTYPE_UNCONFIGURED
+#define XCHAL_INT23_TYPE        XTHAL_INTTYPE_UNCONFIGURED
+#define XCHAL_INT24_TYPE        XTHAL_INTTYPE_UNCONFIGURED
+#define XCHAL_INT25_TYPE        XTHAL_INTTYPE_UNCONFIGURED
+#define XCHAL_INT26_TYPE        XTHAL_INTTYPE_UNCONFIGURED
+#define XCHAL_INT27_TYPE        XTHAL_INTTYPE_UNCONFIGURED
+#define XCHAL_INT28_TYPE        XTHAL_INTTYPE_UNCONFIGURED
+#define XCHAL_INT29_TYPE        XTHAL_INTTYPE_UNCONFIGURED
+#define XCHAL_INT30_TYPE        XTHAL_INTTYPE_UNCONFIGURED
+#define XCHAL_INT31_TYPE        XTHAL_INTTYPE_UNCONFIGURED
+/*  As an array of entries (eg. for C constant arrays):  */
+#define XCHAL_INT_TYPES         XTHAL_INTTYPE_EXTERN_LEVEL      XCHAL_SEP \
+                                XTHAL_INTTYPE_EXTERN_LEVEL      XCHAL_SEP \
+                                XTHAL_INTTYPE_EXTERN_LEVEL      XCHAL_SEP \
+                                XTHAL_INTTYPE_EXTERN_LEVEL      XCHAL_SEP \
+                                XTHAL_INTTYPE_EXTERN_LEVEL      XCHAL_SEP \
+                                XTHAL_INTTYPE_EXTERN_LEVEL      XCHAL_SEP \
+                                XTHAL_INTTYPE_EXTERN_LEVEL      XCHAL_SEP \
+                                XTHAL_INTTYPE_EXTERN_EDGE       XCHAL_SEP \
+                                XTHAL_INTTYPE_EXTERN_EDGE       XCHAL_SEP \
+                                XTHAL_INTTYPE_EXTERN_EDGE       XCHAL_SEP \
+                                XTHAL_INTTYPE_TIMER             XCHAL_SEP \
+                                XTHAL_INTTYPE_TIMER             XCHAL_SEP \
+                                XTHAL_INTTYPE_TIMER             XCHAL_SEP \
+                                XTHAL_INTTYPE_SOFTWARE          XCHAL_SEP \
+                                XTHAL_INTTYPE_SOFTWARE          XCHAL_SEP \
+                                XTHAL_INTTYPE_SOFTWARE          XCHAL_SEP \
+                                XTHAL_INTTYPE_SOFTWARE          XCHAL_SEP \
+                                XTHAL_INTTYPE_UNCONFIGURED      XCHAL_SEP \
+                                XTHAL_INTTYPE_UNCONFIGURED      XCHAL_SEP \
+                                XTHAL_INTTYPE_UNCONFIGURED      XCHAL_SEP \
+                                XTHAL_INTTYPE_UNCONFIGURED      XCHAL_SEP \
+                                XTHAL_INTTYPE_UNCONFIGURED      XCHAL_SEP \
+                                XTHAL_INTTYPE_UNCONFIGURED      XCHAL_SEP \
+                                XTHAL_INTTYPE_UNCONFIGURED      XCHAL_SEP \
+                                XTHAL_INTTYPE_UNCONFIGURED      XCHAL_SEP \
+                                XTHAL_INTTYPE_UNCONFIGURED      XCHAL_SEP \
+                                XTHAL_INTTYPE_UNCONFIGURED      XCHAL_SEP \
+                                XTHAL_INTTYPE_UNCONFIGURED      XCHAL_SEP \
+                                XTHAL_INTTYPE_UNCONFIGURED      XCHAL_SEP \
+                                XTHAL_INTTYPE_UNCONFIGURED      XCHAL_SEP \
+                                XTHAL_INTTYPE_UNCONFIGURED      XCHAL_SEP \
+                                XTHAL_INTTYPE_UNCONFIGURED
+
+/*  Masks of interrupts for each type of interrupt:  */
+#define XCHAL_INTTYPE_MASK_UNCONFIGURED 0xFFFE0000
+#define XCHAL_INTTYPE_MASK_SOFTWARE     0x0001E000
+#define XCHAL_INTTYPE_MASK_EXTERN_EDGE  0x00000380
+#define XCHAL_INTTYPE_MASK_EXTERN_LEVEL 0x0000007F
+#define XCHAL_INTTYPE_MASK_TIMER        0x00001C00
+#define XCHAL_INTTYPE_MASK_NMI          0x00000000
+/*  As an array of entries (eg. for C constant arrays):  */
+#define XCHAL_INTTYPE_MASKS             0xFFFE0000      XCHAL_SEP \
+                                        0x0001E000      XCHAL_SEP \
+                                        0x00000380      XCHAL_SEP \
+                                        0x0000007F      XCHAL_SEP \
+                                        0x00001C00      XCHAL_SEP \
+                                        0x00000000
+
+/*  Interrupts assigned to each timer (CCOMPARE0 to CCOMPARE3), -1 if unassigned  */
+#define XCHAL_TIMER0_INTERRUPT  10
+#define XCHAL_TIMER1_INTERRUPT  11
+#define XCHAL_TIMER2_INTERRUPT  12
+#define XCHAL_TIMER3_INTERRUPT  XTHAL_TIMER_UNCONFIGURED
+/*  As an array of entries (eg. for C constant arrays):  */
+#define XCHAL_TIMER_INTERRUPTS  10      XCHAL_SEP \
+                                11      XCHAL_SEP \
+                                12      XCHAL_SEP \
+                                XTHAL_TIMER_UNCONFIGURED
+
+/*  Indexing macros:  */
+#define _XCHAL_INTLEVEL_MASK(n)         XCHAL_INTLEVEL ## n ## _MASK
+#define XCHAL_INTLEVEL_MASK(n)          _XCHAL_INTLEVEL_MASK(n)         /* n = 0 .. 15 */
+#define _XCHAL_INTLEVEL_ANDBELOWMASK(n) XCHAL_INTLEVEL ## n ## _ANDBELOW_MASK
+#define XCHAL_INTLEVEL_ANDBELOW_MASK(n) _XCHAL_INTLEVEL_ANDBELOWMASK(n) /* n = 0 .. 15 */
+#define _XCHAL_INT_LEVEL(n)             XCHAL_INT ## n ## _LEVEL
+#define XCHAL_INT_LEVEL(n)              _XCHAL_INT_LEVEL(n)             /* n = 0 .. 31 */
+#define _XCHAL_INT_TYPE(n)              XCHAL_INT ## n ## _TYPE
+#define XCHAL_INT_TYPE(n)               _XCHAL_INT_TYPE(n)              /* n = 0 .. 31 */
+#define _XCHAL_TIMER_INTERRUPT(n)       XCHAL_TIMER ## n ## _INTERRUPT
+#define XCHAL_TIMER_INTERRUPT(n)        _XCHAL_TIMER_INTERRUPT(n)       /* n = 0 .. 3 */
+
+
+
+/*
+ *  External interrupt vectors/levels.
+ *  These macros describe how Xtensa processor interrupt numbers
+ *  (as numbered internally, eg. in INTERRUPT and INTENABLE registers)
+ *  map to external BInterrupt<n> pins, for those interrupts
+ *  configured as external (level-triggered, edge-triggered, or NMI).
+ *  See the Xtensa processor databook for more details.
+ */
+
+/*  Core interrupt numbers mapped to each EXTERNAL interrupt number:  */
+#define XCHAL_EXTINT0_NUM               0       /* (intlevel 1) */
+#define XCHAL_EXTINT1_NUM               1       /* (intlevel 2) */
+#define XCHAL_EXTINT2_NUM               2       /* (intlevel 3) */
+#define XCHAL_EXTINT3_NUM               3       /* (intlevel 1) */
+#define XCHAL_EXTINT4_NUM               4       /* (intlevel 1) */
+#define XCHAL_EXTINT5_NUM               5       /* (intlevel 1) */
+#define XCHAL_EXTINT6_NUM               6       /* (intlevel 1) */
+#define XCHAL_EXTINT7_NUM               7       /* (intlevel 1) */
+#define XCHAL_EXTINT8_NUM               8       /* (intlevel 2) */
+#define XCHAL_EXTINT9_NUM               9       /* (intlevel 3) */
+
+/*  Corresponding interrupt masks:  */
+#define XCHAL_EXTINT0_MASK              0x00000001
+#define XCHAL_EXTINT1_MASK              0x00000002
+#define XCHAL_EXTINT2_MASK              0x00000004
+#define XCHAL_EXTINT3_MASK              0x00000008
+#define XCHAL_EXTINT4_MASK              0x00000010
+#define XCHAL_EXTINT5_MASK              0x00000020
+#define XCHAL_EXTINT6_MASK              0x00000040
+#define XCHAL_EXTINT7_MASK              0x00000080
+#define XCHAL_EXTINT8_MASK              0x00000100
+#define XCHAL_EXTINT9_MASK              0x00000200
+
+/*  Core config interrupt levels mapped to each external interrupt:  */
+#define XCHAL_EXTINT0_LEVEL             1       /* (int number 0) */
+#define XCHAL_EXTINT1_LEVEL             2       /* (int number 1) */
+#define XCHAL_EXTINT2_LEVEL             3       /* (int number 2) */
+#define XCHAL_EXTINT3_LEVEL             1       /* (int number 3) */
+#define XCHAL_EXTINT4_LEVEL             1       /* (int number 4) */
+#define XCHAL_EXTINT5_LEVEL             1       /* (int number 5) */
+#define XCHAL_EXTINT6_LEVEL             1       /* (int number 6) */
+#define XCHAL_EXTINT7_LEVEL             1       /* (int number 7) */
+#define XCHAL_EXTINT8_LEVEL             2       /* (int number 8) */
+#define XCHAL_EXTINT9_LEVEL             3       /* (int number 9) */
+
+
+/*----------------------------------------------------------------------
+                        EXCEPTIONS and VECTORS
+  ----------------------------------------------------------------------*/
+
+#define XCHAL_HAVE_EXCEPTIONS           1       /* 1 if exception option configured, 0 otherwise */
+
+#define XCHAL_XEA_VERSION               2       /* Xtensa Exception Architecture number: 1 for XEA1 (old), 2 for XEA2 (new) */
+#define XCHAL_HAVE_XEA1                 0       /* 1 if XEA1, 0 otherwise */
+#define XCHAL_HAVE_XEA2                 1       /* 1 if XEA2, 0 otherwise */
+/*  For backward compatibility ONLY -- DO NOT USE (will be removed in future release):  */
+#define XCHAL_HAVE_OLD_EXC_ARCH         XCHAL_HAVE_XEA1 /* (DEPRECATED) 1 if old exception architecture (XEA1), 0 otherwise (eg. XEA2) */
+#define XCHAL_HAVE_EXCM                 XCHAL_HAVE_XEA2 /* (DEPRECATED) 1 if PS.EXCM bit exists (currently equals XCHAL_HAVE_TLBS) */
+
+#define XCHAL_RESET_VECTOR_VADDR        0xFE000020
+#define XCHAL_RESET_VECTOR_PADDR        0xFE000020
+#define XCHAL_USER_VECTOR_VADDR         0xD0000220
+#define XCHAL_PROGRAMEXC_VECTOR_VADDR   XCHAL_USER_VECTOR_VADDR         /* for backward compatibility */
+#define XCHAL_USEREXC_VECTOR_VADDR      XCHAL_USER_VECTOR_VADDR         /* for backward compatibility */
+#define XCHAL_USER_VECTOR_PADDR         0x00000220
+#define XCHAL_PROGRAMEXC_VECTOR_PADDR   XCHAL_USER_VECTOR_PADDR         /* for backward compatibility */
+#define XCHAL_USEREXC_VECTOR_PADDR      XCHAL_USER_VECTOR_PADDR         /* for backward compatibility */
+#define XCHAL_KERNEL_VECTOR_VADDR       0xD0000200
+#define XCHAL_STACKEDEXC_VECTOR_VADDR   XCHAL_KERNEL_VECTOR_VADDR       /* for backward compatibility */
+#define XCHAL_KERNELEXC_VECTOR_VADDR    XCHAL_KERNEL_VECTOR_VADDR       /* for backward compatibility */
+#define XCHAL_KERNEL_VECTOR_PADDR       0x00000200
+#define XCHAL_STACKEDEXC_VECTOR_PADDR   XCHAL_KERNEL_VECTOR_PADDR       /* for backward compatibility */
+#define XCHAL_KERNELEXC_VECTOR_PADDR    XCHAL_KERNEL_VECTOR_PADDR       /* for backward compatibility */
+#define XCHAL_DOUBLEEXC_VECTOR_VADDR    0xD0000290
+#define XCHAL_DOUBLEEXC_VECTOR_PADDR    0x00000290
+#define XCHAL_WINDOW_VECTORS_VADDR      0xD0000000
+#define XCHAL_WINDOW_VECTORS_PADDR      0x00000000
+#define XCHAL_INTLEVEL2_VECTOR_VADDR    0xD0000240
+#define XCHAL_INTLEVEL2_VECTOR_PADDR    0x00000240
+#define XCHAL_INTLEVEL3_VECTOR_VADDR    0xD0000250
+#define XCHAL_INTLEVEL3_VECTOR_PADDR    0x00000250
+#define XCHAL_INTLEVEL4_VECTOR_VADDR    0xFE000520
+#define XCHAL_INTLEVEL4_VECTOR_PADDR    0xFE000520
+#define XCHAL_DEBUG_VECTOR_VADDR        XCHAL_INTLEVEL4_VECTOR_VADDR
+#define XCHAL_DEBUG_VECTOR_PADDR        XCHAL_INTLEVEL4_VECTOR_PADDR
+
+/*  Indexing macros:  */
+#define _XCHAL_INTLEVEL_VECTOR_VADDR(n)         XCHAL_INTLEVEL ## n ## _VECTOR_VADDR
+#define XCHAL_INTLEVEL_VECTOR_VADDR(n)          _XCHAL_INTLEVEL_VECTOR_VADDR(n)         /* n = 0 .. 15 */
+
+/*
+ *  General Exception Causes
+ *  (values of EXCCAUSE special register set by general exceptions,
+ *   which vector to the user, kernel, or double-exception vectors):
+ */
+#define XCHAL_EXCCAUSE_ILLEGAL_INSTRUCTION              0       /* Illegal Instruction (IllegalInstruction) */
+#define XCHAL_EXCCAUSE_SYSTEM_CALL                      1       /* System Call (SystemCall) */
+#define XCHAL_EXCCAUSE_INSTRUCTION_FETCH_ERROR          2       /* Instruction Fetch Error (InstructionFetchError) */
+#define XCHAL_EXCCAUSE_LOAD_STORE_ERROR                 3       /* Load Store Error (LoadStoreError) */
+#define XCHAL_EXCCAUSE_LEVEL1_INTERRUPT                 4       /* Level 1 Interrupt (Level1Interrupt) */
+#define XCHAL_EXCCAUSE_ALLOCA                           5       /* Stack Extension Assist (Alloca) */
+#define XCHAL_EXCCAUSE_INTEGER_DIVIDE_BY_ZERO           6       /* Integer Divide by Zero (IntegerDivideByZero) */
+#define XCHAL_EXCCAUSE_SPECULATION                      7       /* Speculation (Speculation) */
+#define XCHAL_EXCCAUSE_PRIVILEGED                       8       /* Privileged Instruction (Privileged) */
+#define XCHAL_EXCCAUSE_UNALIGNED                        9       /* Unaligned Load Store (Unaligned) */
+#define XCHAL_EXCCAUSE_ITLB_MISS                        16      /* ITlb Miss Exception (ITlbMiss) */
+#define XCHAL_EXCCAUSE_ITLB_MULTIHIT                    17      /* ITlb Mutltihit Exception (ITlbMultihit) */
+#define XCHAL_EXCCAUSE_ITLB_PRIVILEGE                   18      /* ITlb Privilege Exception (ITlbPrivilege) */
+#define XCHAL_EXCCAUSE_ITLB_SIZE_RESTRICTION            19      /* ITlb Size Restriction Exception (ITlbSizeRestriction) */
+#define XCHAL_EXCCAUSE_FETCH_CACHE_ATTRIBUTE            20      /* Fetch Cache Attribute Exception (FetchCacheAttribute) */
+#define XCHAL_EXCCAUSE_DTLB_MISS                        24      /* DTlb Miss Exception (DTlbMiss) */
+#define XCHAL_EXCCAUSE_DTLB_MULTIHIT                    25      /* DTlb Multihit Exception (DTlbMultihit) */
+#define XCHAL_EXCCAUSE_DTLB_PRIVILEGE                   26      /* DTlb Privilege Exception (DTlbPrivilege) */
+#define XCHAL_EXCCAUSE_DTLB_SIZE_RESTRICTION            27      /* DTlb Size Restriction Exception (DTlbSizeRestriction) */
+#define XCHAL_EXCCAUSE_LOAD_CACHE_ATTRIBUTE             28      /* Load Cache Attribute Exception (LoadCacheAttribute) */
+#define XCHAL_EXCCAUSE_STORE_CACHE_ATTRIBUTE            29      /* Store Cache Attribute Exception (StoreCacheAttribute) */
+#define XCHAL_EXCCAUSE_FLOATING_POINT                   40      /* Floating Point Exception (FloatingPoint) */
+
+
+
+/*----------------------------------------------------------------------
+                                TIMERS
+  ----------------------------------------------------------------------*/
+
+#define XCHAL_HAVE_CCOUNT               1       /* 1 if have CCOUNT, 0 otherwise */
+/*#define XCHAL_HAVE_TIMERS             XCHAL_HAVE_CCOUNT*/
+#define XCHAL_NUM_TIMERS                3       /* number of CCOMPAREn regs */
+
+
+
+/*----------------------------------------------------------------------
+                                DEBUG
+  ----------------------------------------------------------------------*/
+
+#define XCHAL_HAVE_DEBUG                1       /* 1 if debug option configured, 0 otherwise */
+#define XCHAL_HAVE_OCD                  1       /* 1 if OnChipDebug option configured, 0 otherwise */
+#define XCHAL_NUM_IBREAK                2       /* number of IBREAKn regs */
+#define XCHAL_NUM_DBREAK                2       /* number of DBREAKn regs */
+#define XCHAL_DEBUGLEVEL                4       /* debug interrupt level */
+/*DebugExternalInterrupt                0               0|1*/
+/*DebugUseDIRArray                      0               0|1*/
+
+
+
+
+/*----------------------------------------------------------------------
+                        COPROCESSORS and EXTRA STATE
+  ----------------------------------------------------------------------*/
+
+#define XCHAL_HAVE_CP                   0       /* 1 if coprocessor option configured (CPENABLE present) */
+#define XCHAL_CP_MAXCFG                 0       /* max allowed cp id plus one (per cfg) */
+
+#include <xtensa/config/tie.h>
+
+
+
+
+/*----------------------------------------------------------------------
+                        INTERNAL I/D RAM/ROMs and XLMI
+  ----------------------------------------------------------------------*/
+
+#define XCHAL_NUM_INSTROM               0       /* number of core instruction ROMs configured */
+#define XCHAL_NUM_INSTRAM               0       /* number of core instruction RAMs configured */
+#define XCHAL_NUM_DATAROM               0       /* number of core data ROMs configured */
+#define XCHAL_NUM_DATARAM               0       /* number of core data RAMs configured */
+#define XCHAL_NUM_XLMI                  0       /* number of core XLMI ports configured */
+#define  XCHAL_NUM_IROM                 XCHAL_NUM_INSTROM       /* (DEPRECATED) */
+#define  XCHAL_NUM_IRAM                 XCHAL_NUM_INSTRAM       /* (DEPRECATED) */
+#define  XCHAL_NUM_DROM                 XCHAL_NUM_DATAROM       /* (DEPRECATED) */
+#define  XCHAL_NUM_DRAM                 XCHAL_NUM_DATARAM       /* (DEPRECATED) */
+
+
+
+/*----------------------------------------------------------------------
+                                CACHE
+  ----------------------------------------------------------------------*/
+
+/*  Size of the cache lines in log2(bytes):  */
+#define XCHAL_ICACHE_LINEWIDTH          4
+#define XCHAL_DCACHE_LINEWIDTH          4
+/*  Size of the cache lines in bytes:  */
+#define XCHAL_ICACHE_LINESIZE           16
+#define XCHAL_DCACHE_LINESIZE           16
+/*  Max for both I-cache and D-cache (used for general alignment):  */
+#define XCHAL_CACHE_LINEWIDTH_MAX       4
+#define XCHAL_CACHE_LINESIZE_MAX        16
+
+/*  Number of cache sets in log2(lines per way):  */
+#define XCHAL_ICACHE_SETWIDTH           8
+#define XCHAL_DCACHE_SETWIDTH           8
+/*  Max for both I-cache and D-cache (used for general cache-coherency page alignment):  */
+#define XCHAL_CACHE_SETWIDTH_MAX        8
+#define XCHAL_CACHE_SETSIZE_MAX         256
+
+/*  Cache set associativity (number of ways):  */
+#define XCHAL_ICACHE_WAYS               2
+#define XCHAL_DCACHE_WAYS               2
+
+/*  Size of the caches in bytes (ways * 2^(linewidth + setwidth)):  */
+#define XCHAL_ICACHE_SIZE               8192
+#define XCHAL_DCACHE_SIZE               8192
+
+/*  Cache features:  */
+#define XCHAL_DCACHE_IS_WRITEBACK       0
+/*  Whether cache locking feature is available:  */
+#define XCHAL_ICACHE_LINE_LOCKABLE      0
+#define XCHAL_DCACHE_LINE_LOCKABLE      0
+
+/*  Number of (encoded) cache attribute bits:  */
+#define XCHAL_CA_BITS                   4       /* number of bits needed to hold cache attribute encoding */
+/*  (The number of access mode bits (decoded cache attribute bits) is defined by the architecture; see xtensa/hal.h?)  */
+
+
+/*  Cache Attribute encodings -- lists of access modes for each cache attribute:  */
+#define XCHAL_FCA_LIST          XTHAL_FAM_EXCEPTION     XCHAL_SEP \
+                                XTHAL_FAM_BYPASS        XCHAL_SEP \
+                                XTHAL_FAM_EXCEPTION     XCHAL_SEP \
+                                XTHAL_FAM_BYPASS        XCHAL_SEP \
+                                XTHAL_FAM_EXCEPTION     XCHAL_SEP \
+                                XTHAL_FAM_CACHED        XCHAL_SEP \
+                                XTHAL_FAM_EXCEPTION     XCHAL_SEP \
+                                XTHAL_FAM_CACHED        XCHAL_SEP \
+                                XTHAL_FAM_EXCEPTION     XCHAL_SEP \
+                                XTHAL_FAM_CACHED        XCHAL_SEP \
+                                XTHAL_FAM_EXCEPTION     XCHAL_SEP \
+                                XTHAL_FAM_CACHED        XCHAL_SEP \
+                                XTHAL_FAM_EXCEPTION     XCHAL_SEP \
+                                XTHAL_FAM_EXCEPTION     XCHAL_SEP \
+                                XTHAL_FAM_EXCEPTION     XCHAL_SEP \
+                                XTHAL_FAM_EXCEPTION
+#define XCHAL_LCA_LIST          XTHAL_LAM_EXCEPTION     XCHAL_SEP \
+                                XTHAL_LAM_BYPASSG       XCHAL_SEP \
+                                XTHAL_LAM_EXCEPTION     XCHAL_SEP \
+                                XTHAL_LAM_BYPASSG       XCHAL_SEP \
+                                XTHAL_LAM_EXCEPTION     XCHAL_SEP \
+                                XTHAL_LAM_CACHED        XCHAL_SEP \
+                                XTHAL_LAM_EXCEPTION     XCHAL_SEP \
+                                XTHAL_LAM_CACHED        XCHAL_SEP \
+                                XTHAL_LAM_EXCEPTION     XCHAL_SEP \
+                                XTHAL_LAM_NACACHED      XCHAL_SEP \
+                                XTHAL_LAM_EXCEPTION     XCHAL_SEP \
+                                XTHAL_LAM_NACACHED      XCHAL_SEP \
+                                XTHAL_LAM_EXCEPTION     XCHAL_SEP \
+                                XTHAL_LAM_ISOLATE       XCHAL_SEP \
+                                XTHAL_LAM_EXCEPTION     XCHAL_SEP \
+                                XTHAL_LAM_CACHED
+#define XCHAL_SCA_LIST          XTHAL_SAM_EXCEPTION     XCHAL_SEP \
+                                XTHAL_SAM_EXCEPTION     XCHAL_SEP \
+                                XTHAL_SAM_EXCEPTION     XCHAL_SEP \
+                                XTHAL_SAM_BYPASS        XCHAL_SEP \
+                                XTHAL_SAM_EXCEPTION     XCHAL_SEP \
+                                XTHAL_SAM_EXCEPTION     XCHAL_SEP \
+                                XTHAL_SAM_EXCEPTION     XCHAL_SEP \
+                                XTHAL_SAM_WRITETHRU     XCHAL_SEP \
+                                XTHAL_SAM_EXCEPTION     XCHAL_SEP \
+                                XTHAL_SAM_EXCEPTION     XCHAL_SEP \
+                                XTHAL_SAM_EXCEPTION     XCHAL_SEP \
+                                XTHAL_SAM_WRITETHRU     XCHAL_SEP \
+                                XTHAL_SAM_EXCEPTION     XCHAL_SEP \
+                                XTHAL_SAM_ISOLATE       XCHAL_SEP \
+                                XTHAL_SAM_EXCEPTION     XCHAL_SEP \
+                                XTHAL_SAM_WRITETHRU
+
+/*  Test:
+        read/only: 0 + 1 + 2 + 4 + 5 + 6 + 8 + 9 + 10 + 12 + 14
+        read/only: 0 + 1 + 2 + 4 + 5 + 6 + 8 + 9 + 10 + 12 + 14
+        all:       0 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 + 12 + 13 + 14 + 15
+        fault:     0 + 2 + 4 + 6 + 8 + 10 + 12 + 14
+        r/w/x cached:
+        r/w/x dcached:
+        I-bypass:  1 + 3
+
+        load guard bit set: 1 + 3
+        load guard bit clr: 0 + 2 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 + 12 + 13 + 14 + 15
+        hit-cache r/w/x: 7 + 11
+
+        fams: 5
+        fams: 0 / 6 / 18 / 1 / 2
+        fams: Bypass / Isolate / Cached / Exception / NACached
+
+        MMU okay:  yes
+*/
+
+
+/*----------------------------------------------------------------------
+                                MMU
+  ----------------------------------------------------------------------*/
+
+/*
+ *  General notes on MMU parameters.
+ *
+ *  Terminology:
+ *      ASID = address-space ID (acts as an "extension" of virtual addresses)
+ *      VPN  = virtual page number
+ *      PPN  = physical page number
+ *      CA   = encoded cache attribute (access modes)
+ *      TLB  = translation look-aside buffer (term is stretched somewhat here)
+ *      I    = instruction (fetch accesses)
+ *      D    = data (load and store accesses)
+ *      way  = each TLB (ITLB and DTLB) consists of a number of "ways"
+ *              that simultaneously match the virtual address of an access;
+ *              a TLB successfully translates a virtual address if exactly
+ *              one way matches the vaddr; if none match, it is a miss;
+ *              if multiple match, one gets a "multihit" exception;
+ *              each way can be independently configured in terms of number of
+ *              entries, page sizes, which fields are writable or constant, etc.
+ *      set  = group of contiguous ways with exactly identical parameters
+ *      ARF  = auto-refill; hardware services a 1st-level miss by loading a PTE
+ *              from the page table and storing it in one of the auto-refill ways;
+ *              if this PTE load also misses, a miss exception is posted for s/w.
+ *      min-wired = a "min-wired" way can be used to map a single (minimum-sized)
+ *              page arbitrarily under program control; it has a single entry,
+ *              is non-auto-refill (some other way(s) must be auto-refill),
+ *              all its fields (VPN, PPN, ASID, CA) are all writable, and it
+ *              supports the XCHAL_MMU_MIN_PTE_PAGE_SIZE page size (a current
+ *              restriction is that this be the only page size it supports).
+ *
+ *  TLB way entries are virtually indexed.
+ *  TLB ways that support multiple page sizes:
+ *      - must have all writable VPN and PPN fields;
+ *      - can only use one page size at any given time (eg. setup at startup),
+ *        selected by the respective ITLBCFG or DTLBCFG special register,
+ *        whose bits n*4+3 .. n*4 index the list of page sizes for way n
+ *        (XCHAL_xTLB_SETm_PAGESZ_LOG2_LIST for set m corresponding to way n);
+ *        this list may be sparse for auto-refill ways because auto-refill
+ *        ways have independent lists of supported page sizes sharing a
+ *        common encoding with PTE entries; the encoding is the index into
+ *        this list; unsupported sizes for a given way are zero in the list;
+ *        selecting unsupported sizes results in undefined hardware behaviour;
+ *      - is only possible for ways 0 thru 7 (due to ITLBCFG/DTLBCFG definition).
+ */
+
+#define XCHAL_HAVE_CACHEATTR            0       /* 1 if CACHEATTR register present, 0 if TLBs present instead */
+#define XCHAL_HAVE_TLBS                 1       /* 1 if TLBs present, 0 if CACHEATTR present instead */
+#define XCHAL_HAVE_MMU                  XCHAL_HAVE_TLBS /* (DEPRECATED; use XCHAL_HAVE_TLBS instead; will be removed in future release) */
+#define XCHAL_HAVE_SPANNING_WAY         0       /* 1 if single way maps entire virtual address space in I+D */
+#define XCHAL_HAVE_IDENTITY_MAP         0       /* 1 if virtual addr == physical addr always, 0 otherwise */
+#define XCHAL_HAVE_MIMIC_CACHEATTR      0       /* 1 if have MMU that mimics a CACHEATTR config (CaMMU) */
+#define XCHAL_HAVE_XLT_CACHEATTR        0       /* 1 if have MMU that mimics a CACHEATTR config, but with translation (CaXltMMU) */
+
+#define XCHAL_MMU_ASID_BITS             8       /* number of bits in ASIDs (address space IDs) */
+#define XCHAL_MMU_ASID_INVALID          0       /* ASID value indicating invalid address space */
+#define XCHAL_MMU_ASID_KERNEL           1       /* ASID value indicating kernel (ring 0) address space */
+#define XCHAL_MMU_RINGS                 4       /* number of rings supported (1..4) */
+#define XCHAL_MMU_RING_BITS             2       /* number of bits needed to hold ring number */
+#define XCHAL_MMU_SR_BITS               0       /* number of size-restriction bits supported */
+#define XCHAL_MMU_CA_BITS               4       /* number of bits needed to hold cache attribute encoding */
+#define XCHAL_MMU_MAX_PTE_PAGE_SIZE     12      /* max page size in a PTE structure (log2) */
+#define XCHAL_MMU_MIN_PTE_PAGE_SIZE     12      /* min page size in a PTE structure (log2) */
+
+
+/***  Instruction TLB:  ***/
+
+#define XCHAL_ITLB_WAY_BITS             3       /* number of bits holding the ways */
+#define XCHAL_ITLB_WAYS                 7       /* number of ways (n-way set-associative TLB) */
+#define XCHAL_ITLB_ARF_WAYS             4       /* number of auto-refill ways */
+#define XCHAL_ITLB_SETS                 4       /* number of sets (groups of ways with identical settings) */
+
+/*  Way set to which each way belongs:  */
+#define XCHAL_ITLB_WAY0_SET             0
+#define XCHAL_ITLB_WAY1_SET             0
+#define XCHAL_ITLB_WAY2_SET             0
+#define XCHAL_ITLB_WAY3_SET             0
+#define XCHAL_ITLB_WAY4_SET             1
+#define XCHAL_ITLB_WAY5_SET             2
+#define XCHAL_ITLB_WAY6_SET             3
+
+/*  Ways sets that are used by hardware auto-refill (ARF):  */
+#define XCHAL_ITLB_ARF_SETS             1       /* number of auto-refill sets */
+#define XCHAL_ITLB_ARF_SET0             0       /* index of n'th auto-refill set */
+
+/*  Way sets that are "min-wired" (see terminology comment above):  */
+#define XCHAL_ITLB_MINWIRED_SETS        0       /* number of "min-wired" sets */
+
+
+/*  ITLB way set 0 (group of ways 0 thru 3):  */
+#define XCHAL_ITLB_SET0_WAY                     0       /* index of first way in this way set */
+#define XCHAL_ITLB_SET0_WAYS                    4       /* number of (contiguous) ways in this way set */
+#define XCHAL_ITLB_SET0_ENTRIES_LOG2            2       /* log2(number of entries in this way) */
+#define XCHAL_ITLB_SET0_ENTRIES                 4       /* number of entries in this way (always a power of 2) */
+#define XCHAL_ITLB_SET0_ARF                     1       /* 1=autorefill by h/w, 0=non-autorefill (wired/constant/static) */
+#define XCHAL_ITLB_SET0_PAGESIZES               1       /* number of supported page sizes in this way */
+#define XCHAL_ITLB_SET0_PAGESZ_BITS             0       /* number of bits to encode the page size */
+#define XCHAL_ITLB_SET0_PAGESZ_LOG2_MIN         12      /* log2(minimum supported page size) */
+#define XCHAL_ITLB_SET0_PAGESZ_LOG2_MAX         12      /* log2(maximum supported page size) */
+#define XCHAL_ITLB_SET0_PAGESZ_LOG2_LIST        12      /* list of log2(page size)s, separated by XCHAL_SEP;
+                                                           2^PAGESZ_BITS entries in list, unsupported entries are zero */
+#define XCHAL_ITLB_SET0_ASID_CONSTMASK          0       /* constant ASID bits; 0 if all writable */
+#define XCHAL_ITLB_SET0_VPN_CONSTMASK           0       /* constant VPN bits, not including entry index bits; 0 if all writable */
+#define XCHAL_ITLB_SET0_PPN_CONSTMASK           0       /* constant PPN bits, including entry index bits; 0 if all writable */
+#define XCHAL_ITLB_SET0_CA_CONSTMASK            0       /* constant CA bits; 0 if all writable */
+#define XCHAL_ITLB_SET0_ASID_RESET              0       /* 1 if ASID reset values defined (and all writable); 0 otherwise */
+#define XCHAL_ITLB_SET0_VPN_RESET               0       /* 1 if VPN reset values defined (and all writable); 0 otherwise */
+#define XCHAL_ITLB_SET0_PPN_RESET               0       /* 1 if PPN reset values defined (and all writable); 0 otherwise */
+#define XCHAL_ITLB_SET0_CA_RESET                0       /* 1 if CA reset values defined (and all writable); 0 otherwise */
+
+/*  ITLB way set 1 (group of ways 4 thru 4):  */
+#define XCHAL_ITLB_SET1_WAY                     4       /* index of first way in this way set */
+#define XCHAL_ITLB_SET1_WAYS                    1       /* number of (contiguous) ways in this way set */
+#define XCHAL_ITLB_SET1_ENTRIES_LOG2            2       /* log2(number of entries in this way) */
+#define XCHAL_ITLB_SET1_ENTRIES                 4       /* number of entries in this way (always a power of 2) */
+#define XCHAL_ITLB_SET1_ARF                     0       /* 1=autorefill by h/w, 0=non-autorefill (wired/constant/static) */
+#define XCHAL_ITLB_SET1_PAGESIZES               4       /* number of supported page sizes in this way */
+#define XCHAL_ITLB_SET1_PAGESZ_BITS             2       /* number of bits to encode the page size */
+#define XCHAL_ITLB_SET1_PAGESZ_LOG2_MIN         20      /* log2(minimum supported page size) */
+#define XCHAL_ITLB_SET1_PAGESZ_LOG2_MAX         26      /* log2(maximum supported page size) */
+#define XCHAL_ITLB_SET1_PAGESZ_LOG2_LIST        20 XCHAL_SEP 22 XCHAL_SEP 24 XCHAL_SEP 26       /* list of log2(page size)s, separated by XCHAL_SEP;
+                                                           2^PAGESZ_BITS entries in list, unsupported entries are zero */
+#define XCHAL_ITLB_SET1_ASID_CONSTMASK          0       /* constant ASID bits; 0 if all writable */
+#define XCHAL_ITLB_SET1_VPN_CONSTMASK           0       /* constant VPN bits, not including entry index bits; 0 if all writable */
+#define XCHAL_ITLB_SET1_PPN_CONSTMASK           0       /* constant PPN bits, including entry index bits; 0 if all writable */
+#define XCHAL_ITLB_SET1_CA_CONSTMASK            0       /* constant CA bits; 0 if all writable */
+#define XCHAL_ITLB_SET1_ASID_RESET              0       /* 1 if ASID reset values defined (and all writable); 0 otherwise */
+#define XCHAL_ITLB_SET1_VPN_RESET               0       /* 1 if VPN reset values defined (and all writable); 0 otherwise */
+#define XCHAL_ITLB_SET1_PPN_RESET               0       /* 1 if PPN reset values defined (and all writable); 0 otherwise */
+#define XCHAL_ITLB_SET1_CA_RESET                0       /* 1 if CA reset values defined (and all writable); 0 otherwise */
+
+/*  ITLB way set 2 (group of ways 5 thru 5):  */
+#define XCHAL_ITLB_SET2_WAY                     5       /* index of first way in this way set */
+#define XCHAL_ITLB_SET2_WAYS                    1       /* number of (contiguous) ways in this way set */
+#define XCHAL_ITLB_SET2_ENTRIES_LOG2            1       /* log2(number of entries in this way) */
+#define XCHAL_ITLB_SET2_ENTRIES                 2       /* number of entries in this way (always a power of 2) */
+#define XCHAL_ITLB_SET2_ARF                     0       /* 1=autorefill by h/w, 0=non-autorefill (wired/constant/static) */
+#define XCHAL_ITLB_SET2_PAGESIZES               1       /* number of supported page sizes in this way */
+#define XCHAL_ITLB_SET2_PAGESZ_BITS             0       /* number of bits to encode the page size */
+#define XCHAL_ITLB_SET2_PAGESZ_LOG2_MIN         27      /* log2(minimum supported page size) */
+#define XCHAL_ITLB_SET2_PAGESZ_LOG2_MAX         27      /* log2(maximum supported page size) */
+#define XCHAL_ITLB_SET2_PAGESZ_LOG2_LIST        27      /* list of log2(page size)s, separated by XCHAL_SEP;
+                                                           2^PAGESZ_BITS entries in list, unsupported entries are zero */
+#define XCHAL_ITLB_SET2_ASID_CONSTMASK          0xFF    /* constant ASID bits; 0 if all writable */
+#define XCHAL_ITLB_SET2_VPN_CONSTMASK           0xF0000000      /* constant VPN bits, not including entry index bits; 0 if all writable */
+#define XCHAL_ITLB_SET2_PPN_CONSTMASK           0xF8000000      /* constant PPN bits, including entry index bits; 0 if all writable */
+#define XCHAL_ITLB_SET2_CA_CONSTMASK            0x0000000F      /* constant CA bits; 0 if all writable */
+#define XCHAL_ITLB_SET2_ASID_RESET              0       /* 1 if ASID reset values defined (and all writable); 0 otherwise */
+#define XCHAL_ITLB_SET2_VPN_RESET               0       /* 1 if VPN reset values defined (and all writable); 0 otherwise */
+#define XCHAL_ITLB_SET2_PPN_RESET               0       /* 1 if PPN reset values defined (and all writable); 0 otherwise */
+#define XCHAL_ITLB_SET2_CA_RESET                0       /* 1 if CA reset values defined (and all writable); 0 otherwise */
+/*  Constant ASID values for each entry of ITLB way set 2 (because ASID_CONSTMASK is non-zero):  */
+#define XCHAL_ITLB_SET2_E0_ASID_CONST           0x01
+#define XCHAL_ITLB_SET2_E1_ASID_CONST           0x01
+/*  Constant VPN values for each entry of ITLB way set 2 (because VPN_CONSTMASK is non-zero):  */
+#define XCHAL_ITLB_SET2_E0_VPN_CONST            0xD0000000
+#define XCHAL_ITLB_SET2_E1_VPN_CONST            0xD8000000
+/*  Constant PPN values for each entry of ITLB way set 2 (because PPN_CONSTMASK is non-zero):  */
+#define XCHAL_ITLB_SET2_E0_PPN_CONST            0x00000000
+#define XCHAL_ITLB_SET2_E1_PPN_CONST            0x00000000
+/*  Constant CA values for each entry of ITLB way set 2 (because CA_CONSTMASK is non-zero):  */
+#define XCHAL_ITLB_SET2_E0_CA_CONST             0x07
+#define XCHAL_ITLB_SET2_E1_CA_CONST             0x03
+
+/*  ITLB way set 3 (group of ways 6 thru 6):  */
+#define XCHAL_ITLB_SET3_WAY                     6       /* index of first way in this way set */
+#define XCHAL_ITLB_SET3_WAYS                    1       /* number of (contiguous) ways in this way set */
+#define XCHAL_ITLB_SET3_ENTRIES_LOG2            1       /* log2(number of entries in this way) */
+#define XCHAL_ITLB_SET3_ENTRIES                 2       /* number of entries in this way (always a power of 2) */
+#define XCHAL_ITLB_SET3_ARF                     0       /* 1=autorefill by h/w, 0=non-autorefill (wired/constant/static) */
+#define XCHAL_ITLB_SET3_PAGESIZES               1       /* number of supported page sizes in this way */
+#define XCHAL_ITLB_SET3_PAGESZ_BITS             0       /* number of bits to encode the page size */
+#define XCHAL_ITLB_SET3_PAGESZ_LOG2_MIN         28      /* log2(minimum supported page size) */
+#define XCHAL_ITLB_SET3_PAGESZ_LOG2_MAX         28      /* log2(maximum supported page size) */
+#define XCHAL_ITLB_SET3_PAGESZ_LOG2_LIST        28      /* list of log2(page size)s, separated by XCHAL_SEP;
+                                                           2^PAGESZ_BITS entries in list, unsupported entries are zero */
+#define XCHAL_ITLB_SET3_ASID_CONSTMASK          0xFF    /* constant ASID bits; 0 if all writable */
+#define XCHAL_ITLB_SET3_VPN_CONSTMASK           0xE0000000      /* constant VPN bits, not including entry index bits; 0 if all writable */
+#define XCHAL_ITLB_SET3_PPN_CONSTMASK           0xF0000000      /* constant PPN bits, including entry index bits; 0 if all writable */
+#define XCHAL_ITLB_SET3_CA_CONSTMASK            0x0000000F      /* constant CA bits; 0 if all writable */
+#define XCHAL_ITLB_SET3_ASID_RESET              0       /* 1 if ASID reset values defined (and all writable); 0 otherwise */
+#define XCHAL_ITLB_SET3_VPN_RESET               0       /* 1 if VPN reset values defined (and all writable); 0 otherwise */
+#define XCHAL_ITLB_SET3_PPN_RESET               0       /* 1 if PPN reset values defined (and all writable); 0 otherwise */
+#define XCHAL_ITLB_SET3_CA_RESET                0       /* 1 if CA reset values defined (and all writable); 0 otherwise */
+/*  Constant ASID values for each entry of ITLB way set 3 (because ASID_CONSTMASK is non-zero):  */
+#define XCHAL_ITLB_SET3_E0_ASID_CONST           0x01
+#define XCHAL_ITLB_SET3_E1_ASID_CONST           0x01
+/*  Constant VPN values for each entry of ITLB way set 3 (because VPN_CONSTMASK is non-zero):  */
+#define XCHAL_ITLB_SET3_E0_VPN_CONST            0xE0000000
+#define XCHAL_ITLB_SET3_E1_VPN_CONST            0xF0000000
+/*  Constant PPN values for each entry of ITLB way set 3 (because PPN_CONSTMASK is non-zero):  */
+#define XCHAL_ITLB_SET3_E0_PPN_CONST            0xF0000000
+#define XCHAL_ITLB_SET3_E1_PPN_CONST            0xF0000000
+/*  Constant CA values for each entry of ITLB way set 3 (because CA_CONSTMASK is non-zero):  */
+#define XCHAL_ITLB_SET3_E0_CA_CONST             0x07
+#define XCHAL_ITLB_SET3_E1_CA_CONST             0x03
+
+/*  Indexing macros:  */
+#define _XCHAL_ITLB_SET(n,_what)        XCHAL_ITLB_SET ## n ## _what
+#define XCHAL_ITLB_SET(n,what)          _XCHAL_ITLB_SET(n, _ ## what )
+#define _XCHAL_ITLB_SET_E(n,i,_what)    XCHAL_ITLB_SET ## n ## _E ## i ## _what
+#define XCHAL_ITLB_SET_E(n,i,what)      _XCHAL_ITLB_SET_E(n,i, _ ## what )
+/*
+ *  Example use:  XCHAL_ITLB_SET(XCHAL_ITLB_ARF_SET0,ENTRIES)
+ *      to get the value of XCHAL_ITLB_SET<n>_ENTRIES where <n> is the first auto-refill set.
+ */
+
+
+/***  Data TLB:  ***/
+
+#define XCHAL_DTLB_WAY_BITS             4       /* number of bits holding the ways */
+#define XCHAL_DTLB_WAYS                 10      /* number of ways (n-way set-associative TLB) */
+#define XCHAL_DTLB_ARF_WAYS             4       /* number of auto-refill ways */
+#define XCHAL_DTLB_SETS                 5       /* number of sets (groups of ways with identical settings) */
+
+/*  Way set to which each way belongs:  */
+#define XCHAL_DTLB_WAY0_SET             0
+#define XCHAL_DTLB_WAY1_SET             0
+#define XCHAL_DTLB_WAY2_SET             0
+#define XCHAL_DTLB_WAY3_SET             0
+#define XCHAL_DTLB_WAY4_SET             1
+#define XCHAL_DTLB_WAY5_SET             2
+#define XCHAL_DTLB_WAY6_SET             3
+#define XCHAL_DTLB_WAY7_SET             4
+#define XCHAL_DTLB_WAY8_SET             4
+#define XCHAL_DTLB_WAY9_SET             4
+
+/*  Ways sets that are used by hardware auto-refill (ARF):  */
+#define XCHAL_DTLB_ARF_SETS             1       /* number of auto-refill sets */
+#define XCHAL_DTLB_ARF_SET0             0       /* index of n'th auto-refill set */
+
+/*  Way sets that are "min-wired" (see terminology comment above):  */
+#define XCHAL_DTLB_MINWIRED_SETS        1       /* number of "min-wired" sets */
+#define XCHAL_DTLB_MINWIRED_SET0        4       /* index of n'th "min-wired" set */
+
+
+/*  DTLB way set 0 (group of ways 0 thru 3):  */
+#define XCHAL_DTLB_SET0_WAY                     0       /* index of first way in this way set */
+#define XCHAL_DTLB_SET0_WAYS                    4       /* number of (contiguous) ways in this way set */
+#define XCHAL_DTLB_SET0_ENTRIES_LOG2            2       /* log2(number of entries in this way) */
+#define XCHAL_DTLB_SET0_ENTRIES                 4       /* number of entries in this way (always a power of 2) */
+#define XCHAL_DTLB_SET0_ARF                     1       /* 1=autorefill by h/w, 0=non-autorefill (wired/constant/static) */
+#define XCHAL_DTLB_SET0_PAGESIZES               1       /* number of supported page sizes in this way */
+#define XCHAL_DTLB_SET0_PAGESZ_BITS             0       /* number of bits to encode the page size */
+#define XCHAL_DTLB_SET0_PAGESZ_LOG2_MIN         12      /* log2(minimum supported page size) */
+#define XCHAL_DTLB_SET0_PAGESZ_LOG2_MAX         12      /* log2(maximum supported page size) */
+#define XCHAL_DTLB_SET0_PAGESZ_LOG2_LIST        12      /* list of log2(page size)s, separated by XCHAL_SEP;
+                                                           2^PAGESZ_BITS entries in list, unsupported entries are zero */
+#define XCHAL_DTLB_SET0_ASID_CONSTMASK          0       /* constant ASID bits; 0 if all writable */
+#define XCHAL_DTLB_SET0_VPN_CONSTMASK           0       /* constant VPN bits, not including entry index bits; 0 if all writable */
+#define XCHAL_DTLB_SET0_PPN_CONSTMASK           0       /* constant PPN bits, including entry index bits; 0 if all writable */
+#define XCHAL_DTLB_SET0_CA_CONSTMASK            0       /* constant CA bits; 0 if all writable */
+#define XCHAL_DTLB_SET0_ASID_RESET              0       /* 1 if ASID reset values defined (and all writable); 0 otherwise */
+#define XCHAL_DTLB_SET0_VPN_RESET               0       /* 1 if VPN reset values defined (and all writable); 0 otherwise */
+#define XCHAL_DTLB_SET0_PPN_RESET               0       /* 1 if PPN reset values defined (and all writable); 0 otherwise */
+#define XCHAL_DTLB_SET0_CA_RESET                0       /* 1 if CA reset values defined (and all writable); 0 otherwise */
+
+/*  DTLB way set 1 (group of ways 4 thru 4):  */
+#define XCHAL_DTLB_SET1_WAY                     4       /* index of first way in this way set */
+#define XCHAL_DTLB_SET1_WAYS                    1       /* number of (contiguous) ways in this way set */
+#define XCHAL_DTLB_SET1_ENTRIES_LOG2            2       /* log2(number of entries in this way) */
+#define XCHAL_DTLB_SET1_ENTRIES                 4       /* number of entries in this way (always a power of 2) */
+#define XCHAL_DTLB_SET1_ARF                     0       /* 1=autorefill by h/w, 0=non-autorefill (wired/constant/static) */
+#define XCHAL_DTLB_SET1_PAGESIZES               4       /* number of supported page sizes in this way */
+#define XCHAL_DTLB_SET1_PAGESZ_BITS             2       /* number of bits to encode the page size */
+#define XCHAL_DTLB_SET1_PAGESZ_LOG2_MIN         20      /* log2(minimum supported page size) */
+#define XCHAL_DTLB_SET1_PAGESZ_LOG2_MAX         26      /* log2(maximum supported page size) */
+#define XCHAL_DTLB_SET1_PAGESZ_LOG2_LIST        20 XCHAL_SEP 22 XCHAL_SEP 24 XCHAL_SEP 26       /* list of log2(page size)s, separated by XCHAL_SEP;
+                                                           2^PAGESZ_BITS entries in list, unsupported entries are zero */
+#define XCHAL_DTLB_SET1_ASID_CONSTMASK          0       /* constant ASID bits; 0 if all writable */
+#define XCHAL_DTLB_SET1_VPN_CONSTMASK           0       /* constant VPN bits, not including entry index bits; 0 if all writable */
+#define XCHAL_DTLB_SET1_PPN_CONSTMASK           0       /* constant PPN bits, including entry index bits; 0 if all writable */
+#define XCHAL_DTLB_SET1_CA_CONSTMASK            0       /* constant CA bits; 0 if all writable */
+#define XCHAL_DTLB_SET1_ASID_RESET              0       /* 1 if ASID reset values defined (and all writable); 0 otherwise */
+#define XCHAL_DTLB_SET1_VPN_RESET               0       /* 1 if VPN reset values defined (and all writable); 0 otherwise */
+#define XCHAL_DTLB_SET1_PPN_RESET               0       /* 1 if PPN reset values defined (and all writable); 0 otherwise */
+#define XCHAL_DTLB_SET1_CA_RESET                0       /* 1 if CA reset values defined (and all writable); 0 otherwise */
+
+/*  DTLB way set 2 (group of ways 5 thru 5):  */
+#define XCHAL_DTLB_SET2_WAY                     5       /* index of first way in this way set */
+#define XCHAL_DTLB_SET2_WAYS                    1       /* number of (contiguous) ways in this way set */
+#define XCHAL_DTLB_SET2_ENTRIES_LOG2            1       /* log2(number of entries in this way) */
+#define XCHAL_DTLB_SET2_ENTRIES                 2       /* number of entries in this way (always a power of 2) */
+#define XCHAL_DTLB_SET2_ARF                     0       /* 1=autorefill by h/w, 0=non-autorefill (wired/constant/static) */
+#define XCHAL_DTLB_SET2_PAGESIZES               1       /* number of supported page sizes in this way */
+#define XCHAL_DTLB_SET2_PAGESZ_BITS             0       /* number of bits to encode the page size */
+#define XCHAL_DTLB_SET2_PAGESZ_LOG2_MIN         27      /* log2(minimum supported page size) */
+#define XCHAL_DTLB_SET2_PAGESZ_LOG2_MAX         27      /* log2(maximum supported page size) */
+#define XCHAL_DTLB_SET2_PAGESZ_LOG2_LIST        27      /* list of log2(page size)s, separated by XCHAL_SEP;
+                                                           2^PAGESZ_BITS entries in list, unsupported entries are zero */
+#define XCHAL_DTLB_SET2_ASID_CONSTMASK          0xFF    /* constant ASID bits; 0 if all writable */
+#define XCHAL_DTLB_SET2_VPN_CONSTMASK           0xF0000000      /* constant VPN bits, not including entry index bits; 0 if all writable */
+#define XCHAL_DTLB_SET2_PPN_CONSTMASK           0xF8000000      /* constant PPN bits, including entry index bits; 0 if all writable */
+#define XCHAL_DTLB_SET2_CA_CONSTMASK            0x0000000F      /* constant CA bits; 0 if all writable */
+#define XCHAL_DTLB_SET2_ASID_RESET              0       /* 1 if ASID reset values defined (and all writable); 0 otherwise */
+#define XCHAL_DTLB_SET2_VPN_RESET               0       /* 1 if VPN reset values defined (and all writable); 0 otherwise */
+#define XCHAL_DTLB_SET2_PPN_RESET               0       /* 1 if PPN reset values defined (and all writable); 0 otherwise */
+#define XCHAL_DTLB_SET2_CA_RESET                0       /* 1 if CA reset values defined (and all writable); 0 otherwise */
+/*  Constant ASID values for each entry of DTLB way set 2 (because ASID_CONSTMASK is non-zero):  */
+#define XCHAL_DTLB_SET2_E0_ASID_CONST           0x01
+#define XCHAL_DTLB_SET2_E1_ASID_CONST           0x01
+/*  Constant VPN values for each entry of DTLB way set 2 (because VPN_CONSTMASK is non-zero):  */
+#define XCHAL_DTLB_SET2_E0_VPN_CONST            0xD0000000
+#define XCHAL_DTLB_SET2_E1_VPN_CONST            0xD8000000
+/*  Constant PPN values for each entry of DTLB way set 2 (because PPN_CONSTMASK is non-zero):  */
+#define XCHAL_DTLB_SET2_E0_PPN_CONST            0x00000000
+#define XCHAL_DTLB_SET2_E1_PPN_CONST            0x00000000
+/*  Constant CA values for each entry of DTLB way set 2 (because CA_CONSTMASK is non-zero):  */
+#define XCHAL_DTLB_SET2_E0_CA_CONST             0x07
+#define XCHAL_DTLB_SET2_E1_CA_CONST             0x03
+
+/*  DTLB way set 3 (group of ways 6 thru 6):  */
+#define XCHAL_DTLB_SET3_WAY                     6       /* index of first way in this way set */
+#define XCHAL_DTLB_SET3_WAYS                    1       /* number of (contiguous) ways in this way set */
+#define XCHAL_DTLB_SET3_ENTRIES_LOG2            1       /* log2(number of entries in this way) */
+#define XCHAL_DTLB_SET3_ENTRIES                 2       /* number of entries in this way (always a power of 2) */
+#define XCHAL_DTLB_SET3_ARF                     0       /* 1=autorefill by h/w, 0=non-autorefill (wired/constant/static) */
+#define XCHAL_DTLB_SET3_PAGESIZES               1       /* number of supported page sizes in this way */
+#define XCHAL_DTLB_SET3_PAGESZ_BITS             0       /* number of bits to encode the page size */
+#define XCHAL_DTLB_SET3_PAGESZ_LOG2_MIN         28      /* log2(minimum supported page size) */
+#define XCHAL_DTLB_SET3_PAGESZ_LOG2_MAX         28      /* log2(maximum supported page size) */
+#define XCHAL_DTLB_SET3_PAGESZ_LOG2_LIST        28      /* list of log2(page size)s, separated by XCHAL_SEP;
+                                                           2^PAGESZ_BITS entries in list, unsupported entries are zero */
+#define XCHAL_DTLB_SET3_ASID_CONSTMASK          0xFF    /* constant ASID bits; 0 if all writable */
+#define XCHAL_DTLB_SET3_VPN_CONSTMASK           0xE0000000      /* constant VPN bits, not including entry index bits; 0 if all writable */
+#define XCHAL_DTLB_SET3_PPN_CONSTMASK           0xF0000000      /* constant PPN bits, including entry index bits; 0 if all writable */
+#define XCHAL_DTLB_SET3_CA_CONSTMASK            0x0000000F      /* constant CA bits; 0 if all writable */
+#define XCHAL_DTLB_SET3_ASID_RESET              0       /* 1 if ASID reset values defined (and all writable); 0 otherwise */
+#define XCHAL_DTLB_SET3_VPN_RESET               0       /* 1 if VPN reset values defined (and all writable); 0 otherwise */
+#define XCHAL_DTLB_SET3_PPN_RESET               0       /* 1 if PPN reset values defined (and all writable); 0 otherwise */
+#define XCHAL_DTLB_SET3_CA_RESET                0       /* 1 if CA reset values defined (and all writable); 0 otherwise */
+/*  Constant ASID values for each entry of DTLB way set 3 (because ASID_CONSTMASK is non-zero):  */
+#define XCHAL_DTLB_SET3_E0_ASID_CONST           0x01
+#define XCHAL_DTLB_SET3_E1_ASID_CONST           0x01
+/*  Constant VPN values for each entry of DTLB way set 3 (because VPN_CONSTMASK is non-zero):  */
+#define XCHAL_DTLB_SET3_E0_VPN_CONST            0xE0000000
+#define XCHAL_DTLB_SET3_E1_VPN_CONST            0xF0000000
+/*  Constant PPN values for each entry of DTLB way set 3 (because PPN_CONSTMASK is non-zero):  */
+#define XCHAL_DTLB_SET3_E0_PPN_CONST            0xF0000000
+#define XCHAL_DTLB_SET3_E1_PPN_CONST            0xF0000000
+/*  Constant CA values for each entry of DTLB way set 3 (because CA_CONSTMASK is non-zero):  */
+#define XCHAL_DTLB_SET3_E0_CA_CONST             0x07
+#define XCHAL_DTLB_SET3_E1_CA_CONST             0x03
+
+/*  DTLB way set 4 (group of ways 7 thru 9):  */
+#define XCHAL_DTLB_SET4_WAY                     7       /* index of first way in this way set */
+#define XCHAL_DTLB_SET4_WAYS                    3       /* number of (contiguous) ways in this way set */
+#define XCHAL_DTLB_SET4_ENTRIES_LOG2            0       /* log2(number of entries in this way) */
+#define XCHAL_DTLB_SET4_ENTRIES                 1       /* number of entries in this way (always a power of 2) */
+#define XCHAL_DTLB_SET4_ARF                     0       /* 1=autorefill by h/w, 0=non-autorefill (wired/constant/static) */
+#define XCHAL_DTLB_SET4_PAGESIZES               1       /* number of supported page sizes in this way */
+#define XCHAL_DTLB_SET4_PAGESZ_BITS             0       /* number of bits to encode the page size */
+#define XCHAL_DTLB_SET4_PAGESZ_LOG2_MIN         12      /* log2(minimum supported page size) */
+#define XCHAL_DTLB_SET4_PAGESZ_LOG2_MAX         12      /* log2(maximum supported page size) */
+#define XCHAL_DTLB_SET4_PAGESZ_LOG2_LIST        12      /* list of log2(page size)s, separated by XCHAL_SEP;
+                                                           2^PAGESZ_BITS entries in list, unsupported entries are zero */
+#define XCHAL_DTLB_SET4_ASID_CONSTMASK          0       /* constant ASID bits; 0 if all writable */
+#define XCHAL_DTLB_SET4_VPN_CONSTMASK           0       /* constant VPN bits, not including entry index bits; 0 if all writable */
+#define XCHAL_DTLB_SET4_PPN_CONSTMASK           0       /* constant PPN bits, including entry index bits; 0 if all writable */
+#define XCHAL_DTLB_SET4_CA_CONSTMASK            0       /* constant CA bits; 0 if all writable */
+#define XCHAL_DTLB_SET4_ASID_RESET              0       /* 1 if ASID reset values defined (and all writable); 0 otherwise */
+#define XCHAL_DTLB_SET4_VPN_RESET               0       /* 1 if VPN reset values defined (and all writable); 0 otherwise */
+#define XCHAL_DTLB_SET4_PPN_RESET               0       /* 1 if PPN reset values defined (and all writable); 0 otherwise */
+#define XCHAL_DTLB_SET4_CA_RESET                0       /* 1 if CA reset values defined (and all writable); 0 otherwise */
+
+/*  Indexing macros:  */
+#define _XCHAL_DTLB_SET(n,_what)        XCHAL_DTLB_SET ## n ## _what
+#define XCHAL_DTLB_SET(n,what)          _XCHAL_DTLB_SET(n, _ ## what )
+#define _XCHAL_DTLB_SET_E(n,i,_what)    XCHAL_DTLB_SET ## n ## _E ## i ## _what
+#define XCHAL_DTLB_SET_E(n,i,what)      _XCHAL_DTLB_SET_E(n,i, _ ## what )
+/*
+ *  Example use:  XCHAL_DTLB_SET(XCHAL_DTLB_ARF_SET0,ENTRIES)
+ *      to get the value of XCHAL_DTLB_SET<n>_ENTRIES where <n> is the first auto-refill set.
+ */
+
+
+/*
+ *  Determine whether we have a full MMU (with Page Table and Protection)
+ *  usable for an MMU-based OS:
+ */
+#if XCHAL_HAVE_TLBS && !XCHAL_HAVE_SPANNING_WAY && XCHAL_ITLB_ARF_WAYS > 0 && XCHAL_DTLB_ARF_WAYS > 0 && XCHAL_MMU_RINGS >= 2
+# define XCHAL_HAVE_PTP_MMU             1       /* have full MMU (with page table [autorefill] and protection) */
+#else
+# define XCHAL_HAVE_PTP_MMU             0       /* don't have full MMU */
+#endif
+
+/*
+ *  For full MMUs, report kernel RAM segment and kernel I/O segment static page mappings:
+ */
+#if XCHAL_HAVE_PTP_MMU
+#define XCHAL_KSEG_CACHED_VADDR         0xD0000000      /* virt.addr of kernel RAM cached static map */
+#define XCHAL_KSEG_CACHED_PADDR         0x00000000      /* phys.addr of kseg_cached */
+#define XCHAL_KSEG_CACHED_SIZE          0x08000000      /* size in bytes of kseg_cached (assumed power of 2!!!) */
+#define XCHAL_KSEG_BYPASS_VADDR         0xD8000000      /* virt.addr of kernel RAM bypass (uncached) static map */
+#define XCHAL_KSEG_BYPASS_PADDR         0x00000000      /* phys.addr of kseg_bypass */
+#define XCHAL_KSEG_BYPASS_SIZE          0x08000000      /* size in bytes of kseg_bypass (assumed power of 2!!!) */
+
+#define XCHAL_KIO_CACHED_VADDR          0xE0000000      /* virt.addr of kernel I/O cached static map */
+#define XCHAL_KIO_CACHED_PADDR          0xF0000000      /* phys.addr of kio_cached */
+#define XCHAL_KIO_CACHED_SIZE           0x10000000      /* size in bytes of kio_cached (assumed power of 2!!!) */
+#define XCHAL_KIO_BYPASS_VADDR          0xF0000000      /* virt.addr of kernel I/O bypass (uncached) static map */
+#define XCHAL_KIO_BYPASS_PADDR          0xF0000000      /* phys.addr of kio_bypass */
+#define XCHAL_KIO_BYPASS_SIZE           0x10000000      /* size in bytes of kio_bypass (assumed power of 2!!!) */
+
+#define XCHAL_SEG_MAPPABLE_VADDR        0x00000000      /* start of largest non-static-mapped virtual addr area */
+#define XCHAL_SEG_MAPPABLE_SIZE         0xD0000000      /* size in bytes of  "  */
+/* define XCHAL_SEG_MAPPABLE2_xxx if more areas present, sorted in order of descending size.  */
+#endif
+
+
+/*----------------------------------------------------------------------
+                                MISC
+  ----------------------------------------------------------------------*/
+
+#define XCHAL_NUM_WRITEBUFFER_ENTRIES   4       /* number of write buffer entries */
+
+#define XCHAL_CORE_ID                   "linux_be"      /* configuration's alphanumeric core identifier
+                                                           (CoreID) set in the Xtensa Processor Generator */
+
+#define XCHAL_BUILD_UNIQUE_ID           0x00003256      /* software build-unique ID (22-bit) */
+
+/*  These definitions describe the hardware targeted by this software:  */
+#define XCHAL_HW_CONFIGID0              0xC103D1FF      /* config ID reg 0 value (upper 32 of 64 bits) */
+#define XCHAL_HW_CONFIGID1              0x00803256      /* config ID reg 1 value (lower 32 of 64 bits) */
+#define XCHAL_CONFIGID0                 XCHAL_HW_CONFIGID0      /* for backward compatibility only -- don't use! */
+#define XCHAL_CONFIGID1                 XCHAL_HW_CONFIGID1      /* for backward compatibility only -- don't use! */
+#define XCHAL_HW_RELEASE_MAJOR          1050    /* major release of targeted hardware */
+#define XCHAL_HW_RELEASE_MINOR          1       /* minor release of targeted hardware */
+#define XCHAL_HW_RELEASE_NAME           "T1050.1"       /* full release name of targeted hardware */
+#define XTHAL_HW_REL_T1050      1
+#define XTHAL_HW_REL_T1050_1    1
+#define XCHAL_HW_CONFIGID_RELIABLE      1
+
+
+/*
+ *  Miscellaneous special register fields:
+ */
+
+
+/*  DBREAKC (special register number 160):  */
+#define XCHAL_DBREAKC_VALIDMASK 0xC000003F      /* bits of DBREAKC that are defined */
+/*  MASK field:  */
+#define XCHAL_DBREAKC_MASK_BITS         6               /* number of bits in MASK field */
+#define XCHAL_DBREAKC_MASK_NUM          64              /* max number of possible causes (2^bits) */
+#define XCHAL_DBREAKC_MASK_SHIFT        0               /* position of MASK bits in DBREAKC, starting from lsbit */
+#define XCHAL_DBREAKC_MASK_MASK         0x0000003F      /* mask of bits in MASK field of DBREAKC */
+/*  LOADBREAK field:  */
+#define XCHAL_DBREAKC_LOADBREAK_BITS    1               /* number of bits in LOADBREAK field */
+#define XCHAL_DBREAKC_LOADBREAK_NUM     2               /* max number of possible causes (2^bits) */
+#define XCHAL_DBREAKC_LOADBREAK_SHIFT   30              /* position of LOADBREAK bits in DBREAKC, starting from lsbit */
+#define XCHAL_DBREAKC_LOADBREAK_MASK    0x40000000      /* mask of bits in LOADBREAK field of DBREAKC */
+/*  STOREBREAK field:  */
+#define XCHAL_DBREAKC_STOREBREAK_BITS   1               /* number of bits in STOREBREAK field */
+#define XCHAL_DBREAKC_STOREBREAK_NUM    2               /* max number of possible causes (2^bits) */
+#define XCHAL_DBREAKC_STOREBREAK_SHIFT  31              /* position of STOREBREAK bits in DBREAKC, starting from lsbit */
+#define XCHAL_DBREAKC_STOREBREAK_MASK   0x80000000      /* mask of bits in STOREBREAK field of DBREAKC */
+
+/*  PS (special register number 230):  */
+#define XCHAL_PS_VALIDMASK      0x00070FFF      /* bits of PS that are defined */
+/*  INTLEVEL field:  */
+#define XCHAL_PS_INTLEVEL_BITS  4               /* number of bits in INTLEVEL field */
+#define XCHAL_PS_INTLEVEL_NUM   16              /* max number of possible causes (2^bits) */
+#define XCHAL_PS_INTLEVEL_SHIFT 0               /* position of INTLEVEL bits in PS, starting from lsbit */
+#define XCHAL_PS_INTLEVEL_MASK  0x0000000F      /* mask of bits in INTLEVEL field of PS */
+/*  EXCM field:  */
+#define XCHAL_PS_EXCM_BITS      1               /* number of bits in EXCM field */
+#define XCHAL_PS_EXCM_NUM       2               /* max number of possible causes (2^bits) */
+#define XCHAL_PS_EXCM_SHIFT     4               /* position of EXCM bits in PS, starting from lsbit */
+#define XCHAL_PS_EXCM_MASK      0x00000010      /* mask of bits in EXCM field of PS */
+/*  PROGSTACK field:  */
+#define XCHAL_PS_PROGSTACK_BITS         1               /* number of bits in PROGSTACK field */
+#define XCHAL_PS_PROGSTACK_NUM          2               /* max number of possible causes (2^bits) */
+#define XCHAL_PS_PROGSTACK_SHIFT        5               /* position of PROGSTACK bits in PS, starting from lsbit */
+#define XCHAL_PS_PROGSTACK_MASK         0x00000020      /* mask of bits in PROGSTACK field of PS */
+/*  RING field:  */
+#define XCHAL_PS_RING_BITS      2               /* number of bits in RING field */
+#define XCHAL_PS_RING_NUM       4               /* max number of possible causes (2^bits) */
+#define XCHAL_PS_RING_SHIFT     6               /* position of RING bits in PS, starting from lsbit */
+#define XCHAL_PS_RING_MASK      0x000000C0      /* mask of bits in RING field of PS */
+/*  OWB field:  */
+#define XCHAL_PS_OWB_BITS       4               /* number of bits in OWB field */
+#define XCHAL_PS_OWB_NUM        16              /* max number of possible causes (2^bits) */
+#define XCHAL_PS_OWB_SHIFT      8               /* position of OWB bits in PS, starting from lsbit */
+#define XCHAL_PS_OWB_MASK       0x00000F00      /* mask of bits in OWB field of PS */
+/*  CALLINC field:  */
+#define XCHAL_PS_CALLINC_BITS   2               /* number of bits in CALLINC field */
+#define XCHAL_PS_CALLINC_NUM    4               /* max number of possible causes (2^bits) */
+#define XCHAL_PS_CALLINC_SHIFT  16              /* position of CALLINC bits in PS, starting from lsbit */
+#define XCHAL_PS_CALLINC_MASK   0x00030000      /* mask of bits in CALLINC field of PS */
+/*  WOE field:  */
+#define XCHAL_PS_WOE_BITS       1               /* number of bits in WOE field */
+#define XCHAL_PS_WOE_NUM        2               /* max number of possible causes (2^bits) */
+#define XCHAL_PS_WOE_SHIFT      18              /* position of WOE bits in PS, starting from lsbit */
+#define XCHAL_PS_WOE_MASK       0x00040000      /* mask of bits in WOE field of PS */
+
+/*  EXCCAUSE (special register number 232):  */
+#define XCHAL_EXCCAUSE_VALIDMASK        0x0000003F      /* bits of EXCCAUSE that are defined */
+/*  EXCCAUSE field:  */
+#define XCHAL_EXCCAUSE_BITS             6               /* number of bits in EXCCAUSE register */
+#define XCHAL_EXCCAUSE_NUM              64              /* max number of possible causes (2^bits) */
+#define XCHAL_EXCCAUSE_SHIFT            0               /* position of EXCCAUSE bits in register, starting from lsbit */
+#define XCHAL_EXCCAUSE_MASK             0x0000003F      /* mask of bits in EXCCAUSE register */
+
+/*  DEBUGCAUSE (special register number 233):  */
+#define XCHAL_DEBUGCAUSE_VALIDMASK      0x0000003F      /* bits of DEBUGCAUSE that are defined */
+/*  ICOUNT field:  */
+#define XCHAL_DEBUGCAUSE_ICOUNT_BITS    1               /* number of bits in ICOUNT field */
+#define XCHAL_DEBUGCAUSE_ICOUNT_NUM     2               /* max number of possible causes (2^bits) */
+#define XCHAL_DEBUGCAUSE_ICOUNT_SHIFT   0               /* position of ICOUNT bits in DEBUGCAUSE, starting from lsbit */
+#define XCHAL_DEBUGCAUSE_ICOUNT_MASK    0x00000001      /* mask of bits in ICOUNT field of DEBUGCAUSE */
+/*  IBREAK field:  */
+#define XCHAL_DEBUGCAUSE_IBREAK_BITS    1               /* number of bits in IBREAK field */
+#define XCHAL_DEBUGCAUSE_IBREAK_NUM     2               /* max number of possible causes (2^bits) */
+#define XCHAL_DEBUGCAUSE_IBREAK_SHIFT   1               /* position of IBREAK bits in DEBUGCAUSE, starting from lsbit */
+#define XCHAL_DEBUGCAUSE_IBREAK_MASK    0x00000002      /* mask of bits in IBREAK field of DEBUGCAUSE */
+/*  DBREAK field:  */
+#define XCHAL_DEBUGCAUSE_DBREAK_BITS    1               /* number of bits in DBREAK field */
+#define XCHAL_DEBUGCAUSE_DBREAK_NUM     2               /* max number of possible causes (2^bits) */
+#define XCHAL_DEBUGCAUSE_DBREAK_SHIFT   2               /* position of DBREAK bits in DEBUGCAUSE, starting from lsbit */
+#define XCHAL_DEBUGCAUSE_DBREAK_MASK    0x00000004      /* mask of bits in DBREAK field of DEBUGCAUSE */
+/*  BREAK field:  */
+#define XCHAL_DEBUGCAUSE_BREAK_BITS     1               /* number of bits in BREAK field */
+#define XCHAL_DEBUGCAUSE_BREAK_NUM      2               /* max number of possible causes (2^bits) */
+#define XCHAL_DEBUGCAUSE_BREAK_SHIFT    3               /* position of BREAK bits in DEBUGCAUSE, starting from lsbit */
+#define XCHAL_DEBUGCAUSE_BREAK_MASK     0x00000008      /* mask of bits in BREAK field of DEBUGCAUSE */
+/*  BREAKN field:  */
+#define XCHAL_DEBUGCAUSE_BREAKN_BITS    1               /* number of bits in BREAKN field */
+#define XCHAL_DEBUGCAUSE_BREAKN_NUM     2               /* max number of possible causes (2^bits) */
+#define XCHAL_DEBUGCAUSE_BREAKN_SHIFT   4               /* position of BREAKN bits in DEBUGCAUSE, starting from lsbit */
+#define XCHAL_DEBUGCAUSE_BREAKN_MASK    0x00000010      /* mask of bits in BREAKN field of DEBUGCAUSE */
+/*  DEBUGINT field:  */
+#define XCHAL_DEBUGCAUSE_DEBUGINT_BITS  1               /* number of bits in DEBUGINT field */
+#define XCHAL_DEBUGCAUSE_DEBUGINT_NUM   2               /* max number of possible causes (2^bits) */
+#define XCHAL_DEBUGCAUSE_DEBUGINT_SHIFT 5               /* position of DEBUGINT bits in DEBUGCAUSE, starting from lsbit */
+#define XCHAL_DEBUGCAUSE_DEBUGINT_MASK  0x00000020      /* mask of bits in DEBUGINT field of DEBUGCAUSE */
+
+
+
+/*----------------------------------------------------------------------
+                                ISA
+  ----------------------------------------------------------------------*/
+
+#define XCHAL_HAVE_DENSITY              1       /* 1 if density option configured, 0 otherwise */
+#define XCHAL_HAVE_LOOPS                1       /* 1 if zero-overhead loops option configured, 0 otherwise */
+/*  Misc instructions:  */
+#define XCHAL_HAVE_NSA                  0       /* 1 if NSA/NSAU instructions option configured, 0 otherwise */
+#define XCHAL_HAVE_MINMAX               0       /* 1 if MIN/MAX instructions option configured, 0 otherwise */
+#define XCHAL_HAVE_SEXT                 0       /* 1 if sign-extend instruction option configured, 0 otherwise */
+#define XCHAL_HAVE_CLAMPS               0       /* 1 if CLAMPS instruction option configured, 0 otherwise */
+#define XCHAL_HAVE_MAC16                0       /* 1 if MAC16 option configured, 0 otherwise */
+#define XCHAL_HAVE_MUL16                0       /* 1 if 16-bit integer multiply option configured, 0 otherwise */
+/*#define XCHAL_HAVE_POPC               0*/     /* 1 if CRC instruction option configured, 0 otherwise */
+/*#define XCHAL_HAVE_CRC                0*/     /* 1 if POPC instruction option configured, 0 otherwise */
+
+#define XCHAL_HAVE_SPECULATION          0       /* 1 if speculation option configured, 0 otherwise */
+/*#define XCHAL_HAVE_MP_SYNC            0*/     /* 1 if multiprocessor sync. option configured, 0 otherwise */
+#define XCHAL_HAVE_PRID                 0       /* 1 if processor ID register configured, 0 otherwise */
+
+#define XCHAL_NUM_MISC_REGS             2       /* number of miscellaneous registers (0..4) */
+
+/*  These relate a bit more to TIE:  */
+#define XCHAL_HAVE_BOOLEANS             0       /* 1 if booleans option configured, 0 otherwise */
+#define XCHAL_HAVE_MUL32                0       /* 1 if 32-bit integer multiply option configured, 0 otherwise */
+#define XCHAL_HAVE_MUL32_HIGH           0       /* 1 if MUL32 option includes MULUH and MULSH, 0 otherwise */
+#define XCHAL_HAVE_FP                   0       /* 1 if floating point option configured, 0 otherwise */
+
+
+/*----------------------------------------------------------------------
+                                DERIVED
+  ----------------------------------------------------------------------*/
+
+#if XCHAL_HAVE_BE
+#define XCHAL_INST_ILLN                 0xD60F          /* 2-byte illegal instruction, msb-first */
+#define XCHAL_INST_ILLN_BYTE0           0xD6            /* 2-byte illegal instruction, 1st byte */
+#define XCHAL_INST_ILLN_BYTE1           0x0F            /* 2-byte illegal instruction, 2nd byte */
+#else
+#define XCHAL_INST_ILLN                 0xF06D          /* 2-byte illegal instruction, lsb-first */
+#define XCHAL_INST_ILLN_BYTE0           0x6D            /* 2-byte illegal instruction, 1st byte */
+#define XCHAL_INST_ILLN_BYTE1           0xF0            /* 2-byte illegal instruction, 2nd byte */
+#endif
+/*  Belongs in xtensa/hal.h:  */
+#define XTHAL_INST_ILL                  0x000000        /* 3-byte illegal instruction */
+
+
+/*
+ *  Because information as to exactly which hardware release is targeted
+ *  by a given software build is not always available, compile-time HAL
+ *  Hardware-Release "_AT" macros are fuzzy (return 0, 1, or XCHAL_MAYBE):
+ */
+#ifndef XCHAL_HW_RELEASE_MAJOR
+# define XCHAL_HW_CONFIGID_RELIABLE     0
+#endif
+#if XCHAL_HW_CONFIGID_RELIABLE
+# define XCHAL_HW_RELEASE_AT_OR_BELOW(major,minor)      (XTHAL_REL_LE( XCHAL_HW_RELEASE_MAJOR,XCHAL_HW_RELEASE_MINOR, major,minor ) ? 1 : 0)
+# define XCHAL_HW_RELEASE_AT_OR_ABOVE(major,minor)      (XTHAL_REL_GE( XCHAL_HW_RELEASE_MAJOR,XCHAL_HW_RELEASE_MINOR, major,minor ) ? 1 : 0)
+# define XCHAL_HW_RELEASE_AT(major,minor)               (XTHAL_REL_EQ( XCHAL_HW_RELEASE_MAJOR,XCHAL_HW_RELEASE_MINOR, major,minor ) ? 1 : 0)
+# define XCHAL_HW_RELEASE_MAJOR_AT(major)               ((XCHAL_HW_RELEASE_MAJOR == (major)) ? 1 : 0)
+#else
+# define XCHAL_HW_RELEASE_AT_OR_BELOW(major,minor)      ( ((major) < 1040 && XCHAL_HAVE_XEA2) ? 0 \
+                                                        : ((major) > 1050 && XCHAL_HAVE_XEA1) ? 1 \
+                                                        : XTHAL_MAYBE )
+# define XCHAL_HW_RELEASE_AT_OR_ABOVE(major,minor)      ( ((major) >= 2000 && XCHAL_HAVE_XEA1) ? 0 \
+                                                        : (XTHAL_REL_LE(major,minor, 1040,0) && XCHAL_HAVE_XEA2) ? 1 \
+                                                        : XTHAL_MAYBE )
+# define XCHAL_HW_RELEASE_AT(major,minor)               ( (((major) < 1040 && XCHAL_HAVE_XEA2) || \
+                                                           ((major) >= 2000 && XCHAL_HAVE_XEA1)) ? 0 : XTHAL_MAYBE)
+# define XCHAL_HW_RELEASE_MAJOR_AT(major)               XCHAL_HW_RELEASE_AT(major,0)
+#endif
+
+/*
+ *  Specific errata:
+ */
+
+/*
+ *  Erratum T1020.H13, T1030.H7, T1040.H10, T1050.H4 (fixed in T1040.3 and T1050.1;
+ *  relevant only in XEA1, kernel-vector mode, level-one interrupts and overflows enabled):
+ */
+#define XCHAL_MAYHAVE_ERRATUM_XEA1KWIN  (XCHAL_HAVE_XEA1 && \
+                                         (XCHAL_HW_RELEASE_AT_OR_BELOW(1040,2) != 0 \
+                                          || XCHAL_HW_RELEASE_AT(1050,0)))
+
+
+
+#endif /*XTENSA_CONFIG_CORE_H*/
+
diff --git a/include/asm-xtensa/xtensa/config-linux_be/defs.h b/include/asm-xtensa/xtensa/config-linux_be/defs.h
new file mode 100644
index 000000000000..f7c58b273371
--- /dev/null
+++ b/include/asm-xtensa/xtensa/config-linux_be/defs.h
@@ -0,0 +1,270 @@
+/* Definitions for Xtensa instructions, types, and protos. */
+
+/*
+ * Copyright (c) 2003 Tensilica, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2.1 of the GNU Lesser General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, write the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307,
+ * USA.
+ */
+
+/* Do not modify. This is automatically generated.*/
+
+#ifndef _XTENSA_BASE_HEADER
+#define _XTENSA_BASE_HEADER
+
+#ifdef __XTENSA__
+#if defined(__GNUC__) && !defined(__XCC__)
+
+#define L8UI_ASM(arr, ars, imm) { \
+  __asm__ volatile("l8ui %0, %1, %2" : "=a" (arr) : "a" (ars) , "i" (imm)); \
+}
+
+#define XT_L8UI(ars, imm) \
+({ \
+  unsigned char _arr; \
+  const unsigned char *_ars = ars; \
+  L8UI_ASM(_arr, _ars, imm); \
+  _arr; \
+})
+
+#define L16UI_ASM(arr, ars, imm) { \
+  __asm__ volatile("l16ui %0, %1, %2" : "=a" (arr) : "a" (ars) , "i" (imm)); \
+}
+
+#define XT_L16UI(ars, imm) \
+({ \
+  unsigned short _arr; \
+  const unsigned short *_ars = ars; \
+  L16UI_ASM(_arr, _ars, imm); \
+  _arr; \
+})
+
+#define L16SI_ASM(arr, ars, imm) {\
+  __asm__ volatile("l16si %0, %1, %2" : "=a" (arr) : "a" (ars) , "i" (imm)); \
+}
+
+#define XT_L16SI(ars, imm) \
+({ \
+  signed short _arr; \
+  const signed short *_ars = ars; \
+  L16SI_ASM(_arr, _ars, imm); \
+  _arr; \
+})
+
+#define L32I_ASM(arr, ars, imm) { \
+  __asm__ volatile("l32i %0, %1, %2" : "=a" (arr) : "a" (ars) , "i" (imm)); \
+}
+
+#define XT_L32I(ars, imm) \
+({ \
+  unsigned _arr; \
+  const unsigned *_ars = ars; \
+  L32I_ASM(_arr, _ars, imm); \
+  _arr; \
+})
+
+#define S8I_ASM(arr, ars, imm) {\
+  __asm__ volatile("s8i %0, %1, %2" : : "a" (arr), "a" (ars) , "i" (imm) : "memory" ); \
+}
+
+#define XT_S8I(arr, ars, imm) \
+({ \
+  signed char _arr = arr; \
+  const signed char *_ars = ars; \
+  S8I_ASM(_arr, _ars, imm); \
+})
+
+#define S16I_ASM(arr, ars, imm) {\
+  __asm__ volatile("s16i %0, %1, %2" : : "a" (arr), "a" (ars) , "i" (imm) : "memory" ); \
+}
+
+#define XT_S16I(arr, ars, imm) \
+({ \
+  signed short _arr = arr; \
+  const signed short *_ars = ars; \
+  S16I_ASM(_arr, _ars, imm); \
+})
+
+#define S32I_ASM(arr, ars, imm) { \
+  __asm__ volatile("s32i %0, %1, %2" : : "a" (arr), "a" (ars) , "i" (imm) : "memory" ); \
+}
+
+#define XT_S32I(arr, ars, imm) \
+({ \
+  signed int _arr = arr; \
+  const signed int *_ars = ars; \
+  S32I_ASM(_arr, _ars, imm); \
+})
+
+#define ADDI_ASM(art, ars, imm) {\
+   __asm__ ("addi %0, %1, %2" : "=a" (art) : "a" (ars), "i" (imm)); \
+}
+
+#define XT_ADDI(ars, imm) \
+({ \
+   unsigned _art; \
+   unsigned _ars = ars; \
+   ADDI_ASM(_art, _ars, imm); \
+   _art; \
+})
+
+#define ABS_ASM(arr, art) {\
+   __asm__ ("abs %0, %1" : "=a" (arr) : "a" (art)); \
+}
+
+#define XT_ABS(art) \
+({ \
+   unsigned _arr; \
+   signed _art = art; \
+   ABS_ASM(_arr, _art); \
+   _arr; \
+})
+
+/* Note: In the following macros that reference SAR, the magic "state"
+   register is used to capture the dependency on SAR.  This is because
+   SAR is a 5-bit register and thus there are no C types that can be
+   used to represent it.  It doesn't appear that the SAR register is
+   even relevant to GCC, but it is marked as "clobbered" just in
+   case.  */
+
+#define SRC_ASM(arr, ars, art) {\
+   register int _xt_sar __asm__ ("state"); \
+   __asm__ ("src %0, %1, %2" \
+            : "=a" (arr) : "a" (ars), "a" (art), "t" (_xt_sar)); \
+}
+
+#define XT_SRC(ars, art) \
+({ \
+   unsigned _arr; \
+   unsigned _ars = ars; \
+   unsigned _art = art; \
+   SRC_ASM(_arr, _ars, _art); \
+   _arr; \
+})
+
+#define SSR_ASM(ars) {\
+   register int _xt_sar __asm__ ("state"); \
+   __asm__ ("ssr %1" : "=t" (_xt_sar) : "a" (ars) : "sar"); \
+}
+
+#define XT_SSR(ars) \
+({ \
+   unsigned _ars = ars; \
+   SSR_ASM(_ars); \
+})
+
+#define SSL_ASM(ars) {\
+   register int _xt_sar __asm__ ("state"); \
+   __asm__ ("ssl %1" : "=t" (_xt_sar) : "a" (ars) : "sar"); \
+}
+
+#define XT_SSL(ars) \
+({ \
+   unsigned _ars = ars; \
+   SSL_ASM(_ars); \
+})
+
+#define SSA8B_ASM(ars) {\
+   register int _xt_sar __asm__ ("state"); \
+   __asm__ ("ssa8b %1" : "=t" (_xt_sar) : "a" (ars) : "sar"); \
+}
+
+#define XT_SSA8B(ars) \
+({ \
+   unsigned _ars = ars; \
+   SSA8B_ASM(_ars); \
+})
+
+#define SSA8L_ASM(ars) {\
+   register int _xt_sar __asm__ ("state"); \
+   __asm__ ("ssa8l %1" : "=t" (_xt_sar) : "a" (ars) : "sar"); \
+}
+
+#define XT_SSA8L(ars) \
+({ \
+   unsigned _ars = ars; \
+   SSA8L_ASM(_ars); \
+})
+
+#define SSAI_ASM(imm) {\
+   register int _xt_sar __asm__ ("state"); \
+   __asm__ ("ssai %1" : "=t" (_xt_sar) : "i" (imm) : "sar"); \
+}
+
+#define XT_SSAI(imm) \
+({ \
+   SSAI_ASM(imm); \
+})
+
+
+
+
+
+
+
+
+#endif /* __GNUC__ && !__XCC__ */
+
+#ifdef __XCC__
+
+/* Core load/store instructions */
+extern unsigned char _TIE_L8UI(const unsigned char * ars, immediate imm);
+extern unsigned short _TIE_L16UI(const unsigned short * ars, immediate imm);
+extern signed short _TIE_L16SI(const signed short * ars, immediate imm);
+extern unsigned _TIE_L32I(const unsigned * ars, immediate imm);
+extern void _TIE_S8I(unsigned char arr, unsigned char * ars, immediate imm);
+extern void _TIE_S16I(unsigned short arr, unsigned short * ars, immediate imm);
+extern void _TIE_S32I(unsigned arr, unsigned * ars, immediate imm);
+
+#define XT_L8UI  _TIE_L8UI
+#define XT_L16UI _TIE_L16UI
+#define XT_L16SI _TIE_L16SI
+#define XT_L32I  _TIE_L32I
+#define XT_S8I   _TIE_S8I
+#define XT_S16I  _TIE_S16I
+#define XT_S32I  _TIE_S32I
+
+/* Add-immediate instruction */
+extern unsigned _TIE_ADDI(unsigned ars, immediate imm);
+#define XT_ADDI  _TIE_ADDI
+
+/* Absolute value instruction */
+extern unsigned _TIE_ABS(int art);
+#define XT_ABS _TIE_ABS
+
+/* funnel shift instructions */
+extern unsigned _TIE_SRC(unsigned ars, unsigned art);
+#define XT_SRC _TIE_SRC
+extern void _TIE_SSR(unsigned ars);
+#define XT_SSR _TIE_SSR
+extern void _TIE_SSL(unsigned ars);
+#define XT_SSL _TIE_SSL
+extern void _TIE_SSA8B(unsigned ars);
+#define XT_SSA8B _TIE_SSA8B
+extern void _TIE_SSA8L(unsigned ars);
+#define XT_SSA8L _TIE_SSA8L
+extern void _TIE_SSAI(immediate imm);
+#define XT_SSAI _TIE_SSAI
+
+
+#endif /* __XCC__ */
+
+#endif /* __XTENSA__ */
+#endif /* !_XTENSA_BASE_HEADER */
diff --git a/include/asm-xtensa/xtensa/config-linux_be/specreg.h b/include/asm-xtensa/xtensa/config-linux_be/specreg.h
new file mode 100644
index 000000000000..fa4106aa9a02
--- /dev/null
+++ b/include/asm-xtensa/xtensa/config-linux_be/specreg.h
@@ -0,0 +1,99 @@
+/*
+ * Xtensa Special Register symbolic names
+ */
+
+/* $Id: specreg.h,v 1.2 2003/03/07 19:15:18 joetaylor Exp $ */
+
+/*
+ * Copyright (c) 2003 Tensilica, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2.1 of the GNU Lesser General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, write the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307,
+ * USA.
+ */
+
+#ifndef XTENSA_SPECREG_H
+#define XTENSA_SPECREG_H
+
+/*  Include these special register bitfield definitions, for historical reasons:  */
+#include <xtensa/corebits.h>
+
+
+/*  Special registers:  */
+#define LBEG            0
+#define LEND            1
+#define LCOUNT          2
+#define SAR             3
+#define WINDOWBASE      72
+#define WINDOWSTART     73
+#define PTEVADDR        83
+#define RASID           90
+#define ITLBCFG         91
+#define DTLBCFG         92
+#define IBREAKENABLE    96
+#define DDR             104
+#define IBREAKA_0       128
+#define IBREAKA_1       129
+#define DBREAKA_0       144
+#define DBREAKA_1       145
+#define DBREAKC_0       160
+#define DBREAKC_1       161
+#define EPC_1           177
+#define EPC_2           178
+#define EPC_3           179
+#define EPC_4           180
+#define DEPC            192
+#define EPS_2           194
+#define EPS_3           195
+#define EPS_4           196
+#define EXCSAVE_1       209
+#define EXCSAVE_2       210
+#define EXCSAVE_3       211
+#define EXCSAVE_4       212
+#define INTERRUPT       226
+#define INTENABLE       228
+#define PS              230
+#define EXCCAUSE        232
+#define DEBUGCAUSE      233
+#define CCOUNT          234
+#define ICOUNT          236
+#define ICOUNTLEVEL     237
+#define EXCVADDR        238
+#define CCOMPARE_0      240
+#define CCOMPARE_1      241
+#define CCOMPARE_2      242
+#define MISC_REG_0      244
+#define MISC_REG_1      245
+
+/*  Special cases (bases of special register series):  */
+#define IBREAKA         128
+#define DBREAKA         144
+#define DBREAKC         160
+#define EPC             176
+#define EPS             192
+#define EXCSAVE         208
+#define CCOMPARE        240
+
+/*  Special names for read-only and write-only interrupt registers:  */
+#define INTREAD         226
+#define INTSET          226
+#define INTCLEAR        227
+
+#endif /* XTENSA_SPECREG_H */
+
diff --git a/include/asm-xtensa/xtensa/config-linux_be/system.h b/include/asm-xtensa/xtensa/config-linux_be/system.h
new file mode 100644
index 000000000000..cf9d4d308e3a
--- /dev/null
+++ b/include/asm-xtensa/xtensa/config-linux_be/system.h
@@ -0,0 +1,198 @@
+/*
+ * xtensa/config/system.h -- HAL definitions that are dependent on SYSTEM configuration
+ *
+ *  NOTE: The location and contents of this file are highly subject to change.
+ *
+ *  Source for configuration-independent binaries (which link in a
+ *  configuration-specific HAL library) must NEVER include this file.
+ *  The HAL itself has historically included this file in some instances,
+ *  but this is not appropriate either, because the HAL is meant to be
+ *  core-specific but system independent.
+ */
+
+/*
+ * Copyright (c) 2003 Tensilica, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2.1 of the GNU Lesser General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, write the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307,
+ * USA.
+ */
+
+
+#ifndef XTENSA_CONFIG_SYSTEM_H
+#define XTENSA_CONFIG_SYSTEM_H
+
+/*#include <xtensa/hal.h>*/
+
+
+
+/*----------------------------------------------------------------------
+                                DEVICE ADDRESSES
+  ----------------------------------------------------------------------*/
+
+/*
+ *  Strange place to find these, but the configuration GUI
+ *  allows moving these around to account for various core
+ *  configurations.  Specific boards (and their BSP software)
+ *  will have specific meanings for these components.
+ */
+
+/*  I/O Block areas:  */
+#define XSHAL_IOBLOCK_CACHED_VADDR      0xE0000000
+#define XSHAL_IOBLOCK_CACHED_PADDR      0xF0000000
+#define XSHAL_IOBLOCK_CACHED_SIZE       0x0E000000
+
+#define XSHAL_IOBLOCK_BYPASS_VADDR      0xF0000000
+#define XSHAL_IOBLOCK_BYPASS_PADDR      0xF0000000
+#define XSHAL_IOBLOCK_BYPASS_SIZE       0x0E000000
+
+/*  System ROM:  */
+#define XSHAL_ROM_VADDR         0xEE000000
+#define XSHAL_ROM_PADDR         0xFE000000
+#define XSHAL_ROM_SIZE          0x00400000
+/*  Largest available area (free of vectors):  */
+#define XSHAL_ROM_AVAIL_VADDR   0xEE00052C
+#define XSHAL_ROM_AVAIL_VSIZE   0x003FFAD4
+
+/*  System RAM:  */
+#define XSHAL_RAM_VADDR         0xD0000000
+#define XSHAL_RAM_PADDR         0x00000000
+#define XSHAL_RAM_VSIZE         0x08000000
+#define XSHAL_RAM_PSIZE         0x10000000
+#define XSHAL_RAM_SIZE          XSHAL_RAM_PSIZE
+/*  Largest available area (free of vectors):  */
+#define XSHAL_RAM_AVAIL_VADDR   0xD0000370
+#define XSHAL_RAM_AVAIL_VSIZE   0x07FFFC90
+
+/*
+ *  Shadow system RAM (same device as system RAM, at different address).
+ *  (Emulation boards need this for the SONIC Ethernet driver
+ *   when data caches are configured for writeback mode.)
+ *  NOTE: on full MMU configs, this points to the BYPASS virtual address
+ *  of system RAM, ie. is the same as XSHAL_RAM_* except that virtual
+ *  addresses are viewed through the BYPASS static map rather than
+ *  the CACHED static map.
+ */
+#define XSHAL_RAM_BYPASS_VADDR          0xD8000000
+#define XSHAL_RAM_BYPASS_PADDR          0x00000000
+#define XSHAL_RAM_BYPASS_PSIZE          0x08000000
+
+/*  Alternate system RAM (different device than system RAM):  */
+#define XSHAL_ALTRAM_VADDR              0xCEE00000
+#define XSHAL_ALTRAM_PADDR              0xC0000000
+#define XSHAL_ALTRAM_SIZE               0x00200000
+
+
+/*----------------------------------------------------------------------
+ *                      DEVICE-ADDRESS DEPENDENT...
+ *
+ *  Values written to CACHEATTR special register (or its equivalent)
+ *  to enable and disable caches in various modes.
+ *----------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------
+                        BACKWARD COMPATIBILITY ...
+  ----------------------------------------------------------------------*/
+
+/*
+ *  NOTE:  the following two macros are DEPRECATED.  Use the latter
+ *  board-specific macros instead, which are specially tuned for the
+ *  particular target environments' memory maps.
+ */
+#define XSHAL_CACHEATTR_BYPASS          XSHAL_XT2000_CACHEATTR_BYPASS   /* disable caches in bypass mode */
+#define XSHAL_CACHEATTR_DEFAULT         XSHAL_XT2000_CACHEATTR_DEFAULT  /* default setting to enable caches (no writeback!) */
+
+/*----------------------------------------------------------------------
+                        ISS (Instruction Set Simulator) SPECIFIC ...
+  ----------------------------------------------------------------------*/
+
+#define XSHAL_ISS_CACHEATTR_WRITEBACK   0x1122222F      /* enable caches in write-back mode */
+#define XSHAL_ISS_CACHEATTR_WRITEALLOC  0x1122222F      /* enable caches in write-allocate mode */
+#define XSHAL_ISS_CACHEATTR_WRITETHRU   0x1122222F      /* enable caches in write-through mode */
+#define XSHAL_ISS_CACHEATTR_BYPASS      0x2222222F      /* disable caches in bypass mode */
+#define XSHAL_ISS_CACHEATTR_DEFAULT     XSHAL_ISS_CACHEATTR_WRITEBACK   /* default setting to enable caches */
+
+/*  For Coware only:  */
+#define XSHAL_COWARE_CACHEATTR_WRITEBACK        0x11222222      /* enable caches in write-back mode */
+#define XSHAL_COWARE_CACHEATTR_WRITEALLOC       0x11222222      /* enable caches in write-allocate mode */
+#define XSHAL_COWARE_CACHEATTR_WRITETHRU        0x11222222      /* enable caches in write-through mode */
+#define XSHAL_COWARE_CACHEATTR_BYPASS           0x22222222      /* disable caches in bypass mode */
+#define XSHAL_COWARE_CACHEATTR_DEFAULT          XSHAL_COWARE_CACHEATTR_WRITEBACK        /* default setting to enable caches */
+
+/*  For BFM and other purposes:  */
+#define XSHAL_ALLVALID_CACHEATTR_WRITEBACK      0x11222222      /* enable caches without any invalid regions */
+#define XSHAL_ALLVALID_CACHEATTR_DEFAULT        XSHAL_ALLVALID_CACHEATTR_WRITEBACK      /* default setting for caches without any invalid regions */
+
+#define XSHAL_ISS_PIPE_REGIONS  0
+#define XSHAL_ISS_SDRAM_REGIONS 0
+
+
+/*----------------------------------------------------------------------
+                        XT2000 BOARD SPECIFIC ...
+  ----------------------------------------------------------------------*/
+
+#define XSHAL_XT2000_CACHEATTR_WRITEBACK        0x22FFFFFF      /* enable caches in write-back mode */
+#define XSHAL_XT2000_CACHEATTR_WRITEALLOC       0x22FFFFFF      /* enable caches in write-allocate mode */
+#define XSHAL_XT2000_CACHEATTR_WRITETHRU        0x22FFFFFF      /* enable caches in write-through mode */
+#define XSHAL_XT2000_CACHEATTR_BYPASS           0x22FFFFFF      /* disable caches in bypass mode */
+#define XSHAL_XT2000_CACHEATTR_DEFAULT          XSHAL_XT2000_CACHEATTR_WRITEBACK        /* default setting to enable caches */
+
+#define XSHAL_XT2000_PIPE_REGIONS       0x00001000      /* BusInt pipeline regions */
+#define XSHAL_XT2000_SDRAM_REGIONS      0x00000005      /* BusInt SDRAM regions */
+
+
+/*----------------------------------------------------------------------
+                                VECTOR SIZES
+  ----------------------------------------------------------------------*/
+
+/*
+ *  Sizes allocated to vectors by the system (memory map) configuration.
+ *  These sizes are constrained by core configuration (eg. one vector's
+ *  code cannot overflow into another vector) but are dependent on the
+ *  system or board (or LSP) memory map configuration.
+ *
+ *  Whether or not each vector happens to be in a system ROM is also
+ *  a system configuration matter, sometimes useful, included here also:
+ */
+#define XSHAL_RESET_VECTOR_SIZE 0x000004E0
+#define XSHAL_RESET_VECTOR_ISROM        1
+#define XSHAL_USER_VECTOR_SIZE  0x0000001C
+#define XSHAL_USER_VECTOR_ISROM 0
+#define XSHAL_PROGRAMEXC_VECTOR_SIZE    XSHAL_USER_VECTOR_SIZE  /* for backward compatibility */
+#define XSHAL_USEREXC_VECTOR_SIZE       XSHAL_USER_VECTOR_SIZE  /* for backward compatibility */
+#define XSHAL_KERNEL_VECTOR_SIZE        0x0000001C
+#define XSHAL_KERNEL_VECTOR_ISROM       0
+#define XSHAL_STACKEDEXC_VECTOR_SIZE    XSHAL_KERNEL_VECTOR_SIZE        /* for backward compatibility */
+#define XSHAL_KERNELEXC_VECTOR_SIZE     XSHAL_KERNEL_VECTOR_SIZE        /* for backward compatibility */
+#define XSHAL_DOUBLEEXC_VECTOR_SIZE     0x000000E0
+#define XSHAL_DOUBLEEXC_VECTOR_ISROM    0
+#define XSHAL_WINDOW_VECTORS_SIZE       0x00000180
+#define XSHAL_WINDOW_VECTORS_ISROM      0
+#define XSHAL_INTLEVEL2_VECTOR_SIZE     0x0000000C
+#define XSHAL_INTLEVEL2_VECTOR_ISROM    0
+#define XSHAL_INTLEVEL3_VECTOR_SIZE     0x0000000C
+#define XSHAL_INTLEVEL3_VECTOR_ISROM    0
+#define XSHAL_INTLEVEL4_VECTOR_SIZE     0x0000000C
+#define XSHAL_INTLEVEL4_VECTOR_ISROM    1
+#define XSHAL_DEBUG_VECTOR_SIZE         XSHAL_INTLEVEL4_VECTOR_SIZE
+#define XSHAL_DEBUG_VECTOR_ISROM        XSHAL_INTLEVEL4_VECTOR_ISROM
+
+
+#endif /*XTENSA_CONFIG_SYSTEM_H*/
+
diff --git a/include/asm-xtensa/xtensa/config-linux_be/tie.h b/include/asm-xtensa/xtensa/config-linux_be/tie.h
new file mode 100644
index 000000000000..3c2e514602f4
--- /dev/null
+++ b/include/asm-xtensa/xtensa/config-linux_be/tie.h
@@ -0,0 +1,275 @@
+/*
+ * xtensa/config/tie.h -- HAL definitions that are dependent on CORE and TIE configuration
+ *
+ *  This header file is sometimes referred to as the "compile-time HAL" or CHAL.
+ *  It was generated for a specific Xtensa processor configuration,
+ *  and furthermore for a specific set of TIE source files that extend
+ *  basic core functionality.
+ *
+ *  Source for configuration-independent binaries (which link in a
+ *  configuration-specific HAL library) must NEVER include this file.
+ *  It is perfectly normal, however, for the HAL source itself to include this file.
+ */
+
+/*
+ * Copyright (c) 2003 Tensilica, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2.1 of the GNU Lesser General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, write the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307,
+ * USA.
+ */
+
+
+#ifndef XTENSA_CONFIG_TIE_H
+#define XTENSA_CONFIG_TIE_H
+
+#include <xtensa/hal.h>
+
+
+/*----------------------------------------------------------------------
+                                GENERAL
+  ----------------------------------------------------------------------*/
+
+/*
+ *  Separators for macros that expand into arrays.
+ *  These can be predefined by files that #include this one,
+ *  when different separators are required.
+ */
+/*  Element separator for macros that expand into 1-dimensional arrays:  */
+#ifndef XCHAL_SEP
+#define XCHAL_SEP                       ,
+#endif
+/*  Array separator for macros that expand into 2-dimensional arrays:  */
+#ifndef XCHAL_SEP2
+#define XCHAL_SEP2                      },{
+#endif
+
+
+
+
+
+
+/*----------------------------------------------------------------------
+                        COPROCESSORS and EXTRA STATE
+  ----------------------------------------------------------------------*/
+
+#define XCHAL_CP_NUM                    0       /* number of coprocessors */
+#define XCHAL_CP_MAX                    0       /* max coprocessor id plus one (0 if none) */
+#define XCHAL_CP_MASK                   0x00    /* bitmask of coprocessors by id */
+
+/*  Space for coprocessors' state save areas:  */
+#define XCHAL_CP0_SA_SIZE               0
+#define XCHAL_CP1_SA_SIZE               0
+#define XCHAL_CP2_SA_SIZE               0
+#define XCHAL_CP3_SA_SIZE               0
+#define XCHAL_CP4_SA_SIZE               0
+#define XCHAL_CP5_SA_SIZE               0
+#define XCHAL_CP6_SA_SIZE               0
+#define XCHAL_CP7_SA_SIZE               0
+/*  Minimum required alignments of CP state save areas:  */
+#define XCHAL_CP0_SA_ALIGN              1
+#define XCHAL_CP1_SA_ALIGN              1
+#define XCHAL_CP2_SA_ALIGN              1
+#define XCHAL_CP3_SA_ALIGN              1
+#define XCHAL_CP4_SA_ALIGN              1
+#define XCHAL_CP5_SA_ALIGN              1
+#define XCHAL_CP6_SA_ALIGN              1
+#define XCHAL_CP7_SA_ALIGN              1
+
+/*  Indexing macros:  */
+#define _XCHAL_CP_SA_SIZE(n)            XCHAL_CP ## n ## _SA_SIZE
+#define XCHAL_CP_SA_SIZE(n)             _XCHAL_CP_SA_SIZE(n)    /* n = 0 .. 7 */
+#define _XCHAL_CP_SA_ALIGN(n)           XCHAL_CP ## n ## _SA_ALIGN
+#define XCHAL_CP_SA_ALIGN(n)            _XCHAL_CP_SA_ALIGN(n)   /* n = 0 .. 7 */
+
+
+/*  Space for "extra" state (user special registers and non-cp TIE) save area:  */
+#define XCHAL_EXTRA_SA_SIZE             0
+#define XCHAL_EXTRA_SA_ALIGN            1
+
+/*  Total save area size (extra + all coprocessors)  */
+/*  (not useful until xthal_{save,restore}_all_extra() is implemented,  */
+/*   but included for Tor2 beta; doesn't account for alignment!):  */
+#define XCHAL_CPEXTRA_SA_SIZE_TOR2      0       /* Tor2Beta temporary definition -- do not use */
+
+/*  Combined required alignment for all CP and EXTRA state save areas  */
+/*  (does not include required alignment for any base config registers):  */
+#define XCHAL_CPEXTRA_SA_ALIGN          1
+
+/* ... */
+
+
+#ifdef _ASMLANGUAGE
+/*
+ *  Assembly-language specific definitions (assembly macros, etc.).
+ */
+#include <xtensa/config/specreg.h>
+
+/********************
+ *  Macros to save and restore the non-coprocessor TIE portion of EXTRA state.
+ */
+
+/* (none) */
+
+
+/********************
+ *  Macros to create functions that save and restore all EXTRA (non-coprocessor) state
+ *  (does not include zero-overhead loop registers and non-optional registers).
+ */
+
+        /*
+         *  Macro that expands to the body of a function that
+         *  stores the extra (non-coprocessor) optional/custom state.
+         *      Entry:  a2 = ptr to save area in which to save extra state
+         *      Exit:   any register a2-a15 (?) may have been clobbered.
+         */
+        .macro  xchal_extra_store_funcbody
+        .endm
+
+
+        /*
+         *  Macro that expands to the body of a function that
+         *  loads the extra (non-coprocessor) optional/custom state.
+         *      Entry:  a2 = ptr to save area from which to restore extra state
+         *      Exit:   any register a2-a15 (?) may have been clobbered.
+         */
+        .macro  xchal_extra_load_funcbody
+        .endm
+
+
+/********************
+ *  Macros to save and restore the state of each TIE coprocessor.
+ */
+
+
+
+/********************
+ *  Macros to create functions that save and restore the state of *any* TIE coprocessor.
+ */
+
+        /*
+         *  Macro that expands to the body of a function
+         *  that stores the selected coprocessor's state (registers etc).
+         *      Entry:  a2 = ptr to save area in which to save cp state
+         *              a3 = coprocessor number
+         *      Exit:   any register a2-a15 (?) may have been clobbered.
+         */
+        .macro  xchal_cpi_store_funcbody
+        .endm
+
+
+        /*
+         *  Macro that expands to the body of a function
+         *  that loads the selected coprocessor's state (registers etc).
+         *      Entry:  a2 = ptr to save area from which to restore cp state
+         *              a3 = coprocessor number
+         *      Exit:   any register a2-a15 (?) may have been clobbered.
+         */
+        .macro  xchal_cpi_load_funcbody
+        .endm
+
+#endif /*_ASMLANGUAGE*/
+
+
+/*
+ *  Contents of save areas in terms of libdb register numbers.
+ *  NOTE:  CONTENTS_LIBDB_{UREG,REGF} macros are not defined in this file;
+ *  it is up to the user of this header file to define these macros
+ *  usefully before each expansion of the CONTENTS_LIBDB macros.
+ *  (Fields rsv[123] are reserved for future additions; they are currently
+ *   set to zero but may be set to some useful values in the future.)
+ *
+ *      CONTENTS_LIBDB_SREG(libdbnum, offset, size, align, rsv1, name, sregnum, bitmask, rsv2, rsv3)
+ *      CONTENTS_LIBDB_UREG(libdbnum, offset, size, align, rsv1, name, uregnum, bitmask, rsv2, rsv3)
+ *      CONTENTS_LIBDB_REGF(libdbnum, offset, size, align, rsv1, name, index, numentries, contentsize, regname_base, regfile_name, rsv2, rsv3)
+ */
+
+#define XCHAL_EXTRA_SA_CONTENTS_LIBDB_NUM       0
+#define XCHAL_EXTRA_SA_CONTENTS_LIBDB   /* empty */
+
+#define XCHAL_CP0_SA_CONTENTS_LIBDB_NUM 0
+#define XCHAL_CP0_SA_CONTENTS_LIBDB     /* empty */
+
+#define XCHAL_CP1_SA_CONTENTS_LIBDB_NUM 0
+#define XCHAL_CP1_SA_CONTENTS_LIBDB     /* empty */
+
+#define XCHAL_CP2_SA_CONTENTS_LIBDB_NUM 0
+#define XCHAL_CP2_SA_CONTENTS_LIBDB     /* empty */
+
+#define XCHAL_CP3_SA_CONTENTS_LIBDB_NUM 0
+#define XCHAL_CP3_SA_CONTENTS_LIBDB     /* empty */
+
+#define XCHAL_CP4_SA_CONTENTS_LIBDB_NUM 0
+#define XCHAL_CP4_SA_CONTENTS_LIBDB     /* empty */
+
+#define XCHAL_CP5_SA_CONTENTS_LIBDB_NUM 0
+#define XCHAL_CP5_SA_CONTENTS_LIBDB     /* empty */
+
+#define XCHAL_CP6_SA_CONTENTS_LIBDB_NUM 0
+#define XCHAL_CP6_SA_CONTENTS_LIBDB     /* empty */
+
+#define XCHAL_CP7_SA_CONTENTS_LIBDB_NUM 0
+#define XCHAL_CP7_SA_CONTENTS_LIBDB     /* empty */
+
+
+
+
+
+
+/*----------------------------------------------------------------------
+                                MISC
+  ----------------------------------------------------------------------*/
+
+#if 0   /* is there something equivalent for user TIE? */
+#define XCHAL_CORE_ID                   "linux_be"      /* configuration's alphanumeric core identifier
+                                                           (CoreID) set in the Xtensa Processor Generator */
+
+#define XCHAL_BUILD_UNIQUE_ID           0x00003256      /* software build-unique ID (22-bit) */
+
+/*  These definitions describe the hardware targeted by this software:  */
+#define XCHAL_HW_CONFIGID0              0xC103D1FF      /* config ID reg 0 value (upper 32 of 64 bits) */
+#define XCHAL_HW_CONFIGID1              0x00803256      /* config ID reg 1 value (lower 32 of 64 bits) */
+#define XCHAL_CONFIGID0                 XCHAL_HW_CONFIGID0      /* for backward compatibility only -- don't use! */
+#define XCHAL_CONFIGID1                 XCHAL_HW_CONFIGID1      /* for backward compatibility only -- don't use! */
+#define XCHAL_HW_RELEASE_MAJOR          1050    /* major release of targeted hardware */
+#define XCHAL_HW_RELEASE_MINOR          1       /* minor release of targeted hardware */
+#define XCHAL_HW_RELEASE_NAME           "T1050.1"       /* full release name of targeted hardware */
+#define XTHAL_HW_REL_T1050      1
+#define XTHAL_HW_REL_T1050_1    1
+#define XCHAL_HW_CONFIGID_RELIABLE      1
+#endif /*0*/
+
+
+
+/*----------------------------------------------------------------------
+                                ISA
+  ----------------------------------------------------------------------*/
+
+#if 0   /* these probably don't belong here, but are related to or implemented using TIE */
+#define XCHAL_HAVE_BOOLEANS             0       /* 1 if booleans option configured, 0 otherwise */
+/*  Misc instructions:  */
+#define XCHAL_HAVE_MUL32                0       /* 1 if 32-bit integer multiply option configured, 0 otherwise */
+#define XCHAL_HAVE_MUL32_HIGH           0       /* 1 if MUL32 option includes MULUH and MULSH, 0 otherwise */
+
+#define XCHAL_HAVE_FP                   0       /* 1 if floating point option configured, 0 otherwise */
+#endif /*0*/
+
+
+#endif /*XTENSA_CONFIG_TIE_H*/
+
diff --git a/include/asm-xtensa/xtensa/coreasm.h b/include/asm-xtensa/xtensa/coreasm.h
new file mode 100644
index 000000000000..a8cfb54c20a1
--- /dev/null
+++ b/include/asm-xtensa/xtensa/coreasm.h
@@ -0,0 +1,526 @@
+#ifndef XTENSA_COREASM_H
+#define XTENSA_COREASM_H
+
+/*
+ * THIS FILE IS GENERATED -- DO NOT MODIFY BY HAND
+ *
+ * include/asm-xtensa/xtensa/coreasm.h -- assembler-specific
+ * definitions that depend on CORE configuration.
+ *
+ * Source for configuration-independent binaries (which link in a
+ * configuration-specific HAL library) must NEVER include this file.
+ * It is perfectly normal, however, for the HAL itself to include this
+ * file.
+ *
+ * This file must NOT include xtensa/config/system.h.  Any assembler
+ * header file that depends on system information should likely go in
+ * a new systemasm.h (or sysasm.h) header file.
+ *
+ *  NOTE: macro beqi32 is NOT configuration-dependent, and is placed
+ *        here til we will have configuration-independent header file.
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file "COPYING" in the main directory of
+ * this archive for more details.
+ *
+ * Copyright (C) 2002 Tensilica Inc.
+ */
+
+
+#include <xtensa/config/core.h>
+#include <xtensa/config/specreg.h>
+
+/*
+ *  Assembly-language specific definitions (assembly macros, etc.).
+ */
+
+/*----------------------------------------------------------------------
+ *  find_ms_setbit
+ *
+ *  This macro finds the most significant bit that is set in <as>
+ *  and return its index + <base> in <ad>, or <base> - 1 if <as> is zero.
+ *  The index counts starting at zero for the lsbit, so the return
+ *  value ranges from <base>-1 (no bit set) to <base>+31 (msbit set).
+ *
+ *  Parameters:
+ *      <ad>    destination address register (any register)
+ *      <as>    source address register
+ *      <at>    temporary address register (must be different than <as>)
+ *      <base>  constant value added to result (usually 0 or 1)
+ *  On entry:
+ *      <ad> = undefined if different than <as>
+ *      <as> = value whose most significant set bit is to be found
+ *      <at> = undefined
+ *      no other registers are used by this macro.
+ *  On exit:
+ *      <ad> = <base> + index of msbit set in original <as>,
+ *           = <base> - 1 if original <as> was zero.
+ *      <as> clobbered (if not <ad>)
+ *      <at> clobbered (if not <ad>)
+ *  Example:
+ *      find_ms_setbit a0, a4, a0, 0            -- return in a0 index of msbit set in a4
+ */
+
+        .macro  find_ms_setbit ad, as, at, base
+#if XCHAL_HAVE_NSA
+        movi    \at, 31+\base
+        nsau    \as, \as        // get index of \as, numbered from msbit (32 if absent)
+        sub     \ad, \at, \as   // get numbering from lsbit (0..31, -1 if absent)
+#else /* XCHAL_HAVE_NSA */
+        movi    \at, \base      // start with result of 0 (point to lsbit of 32)
+
+        beqz    \as, 2f         // special case for zero argument: return -1
+        bltui   \as, 0x10000, 1f        // is it one of the 16 lsbits? (if so, check lower 16 bits)
+        addi    \at, \at, 16    // no, increment result to upper 16 bits (of 32)
+        //srli  \as, \as, 16    // check upper half (shift right 16 bits)
+        extui   \as, \as, 16, 16        // check upper half (shift right 16 bits)
+1:      bltui   \as, 0x100, 1f  // is it one of the 8 lsbits? (if so, check lower 8 bits)
+        addi    \at, \at, 8     // no, increment result to upper 8 bits (of 16)
+        srli    \as, \as, 8     // shift right to check upper 8 bits
+1:      bltui   \as, 0x10, 1f   // is it one of the 4 lsbits? (if so, check lower 4 bits)
+        addi    \at, \at, 4     // no, increment result to upper 4 bits (of 8)
+        srli    \as, \as, 4     // shift right 4 bits to check upper half
+1:      bltui   \as, 0x4, 1f    // is it one of the 2 lsbits? (if so, check lower 2 bits)
+        addi    \at, \at, 2     // no, increment result to upper 2 bits (of 4)
+        srli    \as, \as, 2     // shift right 2 bits to check upper half
+1:      bltui   \as, 0x2, 1f    // is it the lsbit?
+        addi    \at, \at, 2     // no, increment result to upper bit (of 2)
+2:      addi    \at, \at, -1    // (from just above: add 1;  from beqz: return -1)
+        //srli  \as, \as, 1
+1:                              // done! \at contains index of msbit set (or -1 if none set)
+        .if     0x\ad - 0x\at   // destination different than \at ? (works because regs are a0-a15)
+        mov     \ad, \at        // then move result to \ad
+        .endif
+#endif /* XCHAL_HAVE_NSA */
+        .endm   // find_ms_setbit
+
+/*----------------------------------------------------------------------
+ *  find_ls_setbit
+ *
+ *  This macro finds the least significant bit that is set in <as>,
+ *  and return its index in <ad>.
+ *  Usage is the same as for the find_ms_setbit macro.
+ *  Example:
+ *      find_ls_setbit a0, a4, a0, 0    -- return in a0 index of lsbit set in a4
+ */
+
+        .macro  find_ls_setbit ad, as, at, base
+        neg     \at, \as        // keep only the least-significant bit that is set...
+        and     \as, \at, \as   // ... in \as
+        find_ms_setbit  \ad, \as, \at, \base
+        .endm   // find_ls_setbit
+
+/*----------------------------------------------------------------------
+ *  find_ls_one
+ *
+ *  Same as find_ls_setbit with base zero.
+ *  Source (as) and destination (ad) registers must be different.
+ *  Provided for backward compatibility.
+ */
+
+        .macro  find_ls_one ad, as
+        find_ls_setbit  \ad, \as, \ad, 0
+        .endm   // find_ls_one
+
+/*----------------------------------------------------------------------
+ *  floop, floopnez, floopgtz, floopend
+ *
+ *  These macros are used for fast inner loops that
+ *  work whether or not the Loops options is configured.
+ *  If the Loops option is configured, they simply use
+ *  the zero-overhead LOOP instructions; otherwise
+ *  they use explicit decrement and branch instructions.
+ *
+ *  They are used in pairs, with floop, floopnez or floopgtz
+ *  at the beginning of the loop, and floopend at the end.
+ *
+ *  Each pair of loop macro calls must be given the loop count
+ *  address register and a unique label for that loop.
+ *
+ *  Example:
+ *
+ *      movi     a3, 16     // loop 16 times
+ *      floop    a3, myloop1
+ *      :
+ *      bnez     a7, end1       // exit loop if a7 != 0
+ *      :
+ *      floopend a3, myloop1
+ *  end1:
+ *
+ *  Like the LOOP instructions, these macros cannot be
+ *  nested, must include at least one instruction,
+ *  cannot call functions inside the loop, etc.
+ *  The loop can be exited by jumping to the instruction
+ *  following floopend (or elsewhere outside the loop),
+ *  or continued by jumping to a NOP instruction placed
+ *  immediately before floopend.
+ *
+ *  Unlike LOOP instructions, the register passed to floop*
+ *  cannot be used inside the loop, because it is used as
+ *  the loop counter if the Loops option is not configured.
+ *  And its value is undefined after exiting the loop.
+ *  And because the loop counter register is active inside
+ *  the loop, you can't easily use this construct to loop
+ *  across a register file using ROTW as you might with LOOP
+ *  instructions, unless you copy the loop register along.
+ */
+
+        /*  Named label version of the macros:  */
+
+        .macro  floop           ar, endlabel
+        floop_          \ar, .Lfloopstart_\endlabel, .Lfloopend_\endlabel
+        .endm
+
+        .macro  floopnez        ar, endlabel
+        floopnez_       \ar, .Lfloopstart_\endlabel, .Lfloopend_\endlabel
+        .endm
+
+        .macro  floopgtz        ar, endlabel
+        floopgtz_       \ar, .Lfloopstart_\endlabel, .Lfloopend_\endlabel
+        .endm
+
+        .macro  floopend        ar, endlabel
+        floopend_       \ar, .Lfloopstart_\endlabel, .Lfloopend_\endlabel
+        .endm
+
+        /*  Numbered local label version of the macros:  */
+#if 0 /*UNTESTED*/
+        .macro  floop89         ar
+        floop_          \ar, 8, 9f
+        .endm
+
+        .macro  floopnez89      ar
+        floopnez_       \ar, 8, 9f
+        .endm
+
+        .macro  floopgtz89      ar
+        floopgtz_       \ar, 8, 9f
+        .endm
+
+        .macro  floopend89      ar
+        floopend_       \ar, 8b, 9
+        .endm
+#endif /*0*/
+
+        /*  Underlying version of the macros:  */
+
+        .macro  floop_  ar, startlabel, endlabelref
+        .ifdef  _infloop_
+        .if     _infloop_
+        .err    // Error: floop cannot be nested
+        .endif
+        .endif
+        .set    _infloop_, 1
+#if XCHAL_HAVE_LOOPS
+        loop    \ar, \endlabelref
+#else /* XCHAL_HAVE_LOOPS */
+\startlabel:
+        addi    \ar, \ar, -1
+#endif /* XCHAL_HAVE_LOOPS */
+        .endm   // floop_
+
+        .macro  floopnez_       ar, startlabel, endlabelref
+        .ifdef  _infloop_
+        .if     _infloop_
+        .err    // Error: floopnez cannot be nested
+        .endif
+        .endif
+        .set    _infloop_, 1
+#if XCHAL_HAVE_LOOPS
+        loopnez \ar, \endlabelref
+#else /* XCHAL_HAVE_LOOPS */
+        beqz    \ar, \endlabelref
+\startlabel:
+        addi    \ar, \ar, -1
+#endif /* XCHAL_HAVE_LOOPS */
+        .endm   // floopnez_
+
+        .macro  floopgtz_       ar, startlabel, endlabelref
+        .ifdef  _infloop_
+        .if     _infloop_
+        .err    // Error: floopgtz cannot be nested
+        .endif
+        .endif
+        .set    _infloop_, 1
+#if XCHAL_HAVE_LOOPS
+        loopgtz \ar, \endlabelref
+#else /* XCHAL_HAVE_LOOPS */
+        bltz    \ar, \endlabelref
+        beqz    \ar, \endlabelref
+\startlabel:
+        addi    \ar, \ar, -1
+#endif /* XCHAL_HAVE_LOOPS */
+        .endm   // floopgtz_
+
+
+        .macro  floopend_       ar, startlabelref, endlabel
+        .ifndef _infloop_
+        .err    // Error: floopend without matching floopXXX
+        .endif
+        .ifeq   _infloop_
+        .err    // Error: floopend without matching floopXXX
+        .endif
+        .set    _infloop_, 0
+#if ! XCHAL_HAVE_LOOPS
+        bnez    \ar, \startlabelref
+#endif /* XCHAL_HAVE_LOOPS */
+\endlabel:
+        .endm   // floopend_
+
+/*----------------------------------------------------------------------
+ *  crsil  --  conditional RSIL (read/set interrupt level)
+ *
+ *  Executes the RSIL instruction if it exists, else just reads PS.
+ *  The RSIL instruction does not exist in the new exception architecture
+ *  if the interrupt option is not selected.
+ */
+
+        .macro  crsil   ar, newlevel
+#if XCHAL_HAVE_OLD_EXC_ARCH || XCHAL_HAVE_INTERRUPTS
+        rsil    \ar, \newlevel
+#else
+        rsr     \ar, PS
+#endif
+        .endm   // crsil
+
+/*----------------------------------------------------------------------
+ *  window_spill{4,8,12}
+ *
+ *  These macros spill callers' register windows to the stack.
+ *  They work for both privileged and non-privileged tasks.
+ *  Must be called from a windowed ABI context, eg. within
+ *  a windowed ABI function (ie. valid stack frame, window
+ *  exceptions enabled, not in exception mode, etc).
+ *
+ *  This macro requires a single invocation of the window_spill_common
+ *  macro in the same assembly unit and section.
+ *
+ *  Note that using window_spill{4,8,12} macros is more efficient
+ *  than calling a function implemented using window_spill_function,
+ *  because the latter needs extra code to figure out the size of
+ *  the call to the spilling function.
+ *
+ *  Example usage:
+ *
+ *              .text
+ *              .align  4
+ *              .global some_function
+ *              .type   some_function,@function
+ *      some_function:
+ *              entry   a1, 16
+ *              :
+ *              :
+ *
+ *              window_spill4   // spill windows of some_function's callers; preserves a0..a3 only;
+ *                              // to use window_spill{8,12} in this example function we'd have
+ *                              // to increase space allocated by the entry instruction, because
+ *                              // 16 bytes only allows call4; 32 or 48 bytes (+locals) are needed
+ *                              // for call8/window_spill8 or call12/window_spill12 respectively.
+ *              :
+ *
+ *              retw
+ *
+ *              window_spill_common     // instantiates code used by window_spill4
+ *
+ *
+ *  On entry:
+ *      none (if window_spill4)
+ *      stack frame has enough space allocated for call8 (if window_spill8)
+ *      stack frame has enough space allocated for call12 (if window_spill12)
+ *  On exit:
+ *       a4..a15 clobbered (if window_spill4)
+ *       a8..a15 clobbered (if window_spill8)
+ *      a12..a15 clobbered (if window_spill12)
+ *      no caller windows are in live registers
+ */
+
+        .macro  window_spill4
+#if XCHAL_HAVE_WINDOWED
+# if XCHAL_NUM_AREGS == 16
+        movi    a15, 0                  // for 16-register files, no need to call to reach the end
+# elif XCHAL_NUM_AREGS == 32
+        call4   .L__wdwspill_assist28   // call deep enough to clear out any live callers
+# elif XCHAL_NUM_AREGS == 64
+        call4   .L__wdwspill_assist60   // call deep enough to clear out any live callers
+# endif
+#endif
+        .endm   // window_spill4
+
+        .macro  window_spill8
+#if XCHAL_HAVE_WINDOWED
+# if XCHAL_NUM_AREGS == 16
+        movi    a15, 0                  // for 16-register files, no need to call to reach the end
+# elif XCHAL_NUM_AREGS == 32
+        call8   .L__wdwspill_assist24   // call deep enough to clear out any live callers
+# elif XCHAL_NUM_AREGS == 64
+        call8   .L__wdwspill_assist56   // call deep enough to clear out any live callers
+# endif
+#endif
+        .endm   // window_spill8
+
+        .macro  window_spill12
+#if XCHAL_HAVE_WINDOWED
+# if XCHAL_NUM_AREGS == 16
+        movi    a15, 0                  // for 16-register files, no need to call to reach the end
+# elif XCHAL_NUM_AREGS == 32
+        call12  .L__wdwspill_assist20   // call deep enough to clear out any live callers
+# elif XCHAL_NUM_AREGS == 64
+        call12  .L__wdwspill_assist52   // call deep enough to clear out any live callers
+# endif
+#endif
+        .endm   // window_spill12
+
+/*----------------------------------------------------------------------
+ *  window_spill_function
+ *
+ *  This macro outputs a function that will spill its caller's callers'
+ *  register windows to the stack.  Eg. it could be used to implement
+ *  a version of xthal_window_spill() that works in non-privileged tasks.
+ *  This works for both privileged and non-privileged tasks.
+ *
+ *  Typical usage:
+ *
+ *              .text
+ *              .align  4
+ *              .global my_spill_function
+ *              .type   my_spill_function,@function
+ *      my_spill_function:
+ *              window_spill_function
+ *
+ *  On entry to resulting function:
+ *      none
+ *  On exit from resulting function:
+ *      none (no caller windows are in live registers)
+ */
+
+        .macro  window_spill_function
+#if XCHAL_HAVE_WINDOWED
+# if XCHAL_NUM_AREGS == 32
+        entry   sp, 48
+        bbci.l  a0, 31, 1f              // branch if called with call4
+        bbsi.l  a0, 30, 2f              // branch if called with call12
+        call8   .L__wdwspill_assist16   // called with call8, only need another 8
+        retw
+1:      call12  .L__wdwspill_assist16   // called with call4, only need another 12
+        retw
+2:      call4   .L__wdwspill_assist16   // called with call12, only need another 4
+        retw
+# elif XCHAL_NUM_AREGS == 64
+        entry   sp, 48
+        bbci.l  a0, 31, 1f              // branch if called with call4
+        bbsi.l  a0, 30, 2f              // branch if called with call12
+        call4   .L__wdwspill_assist52   // called with call8, only need a call4
+        retw
+1:      call8   .L__wdwspill_assist52   // called with call4, only need a call8
+        retw
+2:      call12  .L__wdwspill_assist40   // called with call12, can skip a call12
+        retw
+# elif XCHAL_NUM_AREGS == 16
+        entry   sp, 16
+        bbci.l  a0, 31, 1f      // branch if called with call4
+        bbsi.l  a0, 30, 2f      // branch if called with call12
+        movi    a7, 0           // called with call8
+        retw
+1:      movi    a11, 0          // called with call4
+2:      retw                    // if called with call12, everything already spilled
+
+//      movi    a15, 0          // trick to spill all but the direct caller
+//      j       1f
+//      //  The entry instruction is magical in the assembler (gets auto-aligned)
+//      //  so we have to jump to it to avoid falling through the padding.
+//      //  We need entry/retw to know where to return.
+//1:    entry   sp, 16
+//      retw
+# else
+#  error "unrecognized address register file size"
+# endif
+#endif /* XCHAL_HAVE_WINDOWED */
+        window_spill_common
+        .endm   // window_spill_function
+
+/*----------------------------------------------------------------------
+ *  window_spill_common
+ *
+ *  Common code used by any number of invocations of the window_spill##
+ *  and window_spill_function macros.
+ *
+ *  Must be instantiated exactly once within a given assembly unit,
+ *  within call/j range of and same section as window_spill##
+ *  macro invocations for that assembly unit.
+ *  (Is automatically instantiated by the window_spill_function macro.)
+ */
+
+        .macro  window_spill_common
+#if XCHAL_HAVE_WINDOWED && (XCHAL_NUM_AREGS == 32 || XCHAL_NUM_AREGS == 64)
+        .ifndef .L__wdwspill_defined
+# if XCHAL_NUM_AREGS >= 64
+.L__wdwspill_assist60:
+        entry   sp, 32
+        call8   .L__wdwspill_assist52
+        retw
+.L__wdwspill_assist56:
+        entry   sp, 16
+        call4   .L__wdwspill_assist52
+        retw
+.L__wdwspill_assist52:
+        entry   sp, 48
+        call12  .L__wdwspill_assist40
+        retw
+.L__wdwspill_assist40:
+        entry   sp, 48
+        call12  .L__wdwspill_assist28
+        retw
+# endif
+.L__wdwspill_assist28:
+        entry   sp, 48
+        call12  .L__wdwspill_assist16
+        retw
+.L__wdwspill_assist24:
+        entry   sp, 32
+        call8   .L__wdwspill_assist16
+        retw
+.L__wdwspill_assist20:
+        entry   sp, 16
+        call4   .L__wdwspill_assist16
+        retw
+.L__wdwspill_assist16:
+        entry   sp, 16
+        movi    a15, 0
+        retw
+        .set    .L__wdwspill_defined, 1
+        .endif
+#endif /* XCHAL_HAVE_WINDOWED with 32 or 64 aregs */
+        .endm   // window_spill_common
+
+/*----------------------------------------------------------------------
+ *  beqi32
+ *
+ *  macro implements version of beqi for arbitrary 32-bit immidiate value
+ *
+ *     beqi32 ax, ay, imm32, label
+ *
+ *  Compares value in register ax with imm32 value and jumps to label if
+ *  equal. Clobberes register ay if needed
+ *
+ */
+   .macro beqi32        ax, ay, imm, label
+    .ifeq ((\imm-1) & ~7)       // 1..8 ?
+                beqi    \ax, \imm, \label
+    .else
+      .ifeq (\imm+1)            // -1 ?
+                beqi    \ax, \imm, \label
+      .else
+        .ifeq (\imm)            // 0 ?
+                beqz    \ax, \label
+        .else
+                //  We could also handle immediates 10,12,16,32,64,128,256
+                //  but it would be a long macro...
+                movi    \ay, \imm
+                beq     \ax, \ay, \label
+        .endif
+      .endif
+    .endif
+   .endm // beqi32
+
+#endif /*XTENSA_COREASM_H*/
+
diff --git a/include/asm-xtensa/xtensa/corebits.h b/include/asm-xtensa/xtensa/corebits.h
new file mode 100644
index 000000000000..e578ade41632
--- /dev/null
+++ b/include/asm-xtensa/xtensa/corebits.h
@@ -0,0 +1,77 @@
+#ifndef XTENSA_COREBITS_H
+#define XTENSA_COREBITS_H
+
+/*
+ * THIS FILE IS GENERATED -- DO NOT MODIFY BY HAND
+ *
+ * xtensa/corebits.h - Xtensa Special Register field positions and masks.
+ *
+ * (In previous releases, these were defined in specreg.h, a generated file.
+ *  This file is not generated, i.e. it is processor configuration independent.)
+ */
+
+
+/*  EXCCAUSE register fields:  */
+#define EXCCAUSE_EXCCAUSE_SHIFT 0
+#define EXCCAUSE_EXCCAUSE_MASK  0x3F
+/*  Exception causes (mostly incomplete!):  */
+#define EXCCAUSE_ILLEGAL                0
+#define EXCCAUSE_SYSCALL                1
+#define EXCCAUSE_IFETCHERROR            2
+#define EXCCAUSE_LOADSTOREERROR         3
+#define EXCCAUSE_LEVEL1INTERRUPT        4
+#define EXCCAUSE_ALLOCA                 5
+
+/*  PS register fields:  */
+#define PS_WOE_SHIFT            18
+#define PS_WOE_MASK             0x00040000
+#define PS_WOE                  PS_WOE_MASK
+#define PS_CALLINC_SHIFT        16
+#define PS_CALLINC_MASK         0x00030000
+#define PS_CALLINC(n)           (((n)&3)<<PS_CALLINC_SHIFT)     /* n = 0..3 */
+#define PS_OWB_SHIFT            8
+#define PS_OWB_MASK             0x00000F00
+#define PS_OWB(n)               (((n)&15)<<PS_OWB_SHIFT)        /* n = 0..15 (or 0..7) */
+#define PS_RING_SHIFT           6
+#define PS_RING_MASK            0x000000C0
+#define PS_RING(n)              (((n)&3)<<PS_RING_SHIFT)        /* n = 0..3 */
+#define PS_UM_SHIFT             5
+#define PS_UM_MASK              0x00000020
+#define PS_UM                   PS_UM_MASK
+#define PS_EXCM_SHIFT           4
+#define PS_EXCM_MASK            0x00000010
+#define PS_EXCM                 PS_EXCM_MASK
+#define PS_INTLEVEL_SHIFT       0
+#define PS_INTLEVEL_MASK        0x0000000F
+#define PS_INTLEVEL(n)          ((n)&PS_INTLEVEL_MASK)          /* n = 0..15 */
+/*  Backward compatibility (deprecated):  */
+#define PS_PROGSTACK_SHIFT      PS_UM_SHIFT
+#define PS_PROGSTACK_MASK       PS_UM_MASK
+#define PS_PROG_SHIFT           PS_UM_SHIFT
+#define PS_PROG_MASK            PS_UM_MASK
+#define PS_PROG                 PS_UM
+
+/*  DBREAKCn register fields:  */
+#define DBREAKC_MASK_SHIFT              0
+#define DBREAKC_MASK_MASK               0x0000003F
+#define DBREAKC_LOADBREAK_SHIFT         30
+#define DBREAKC_LOADBREAK_MASK          0x40000000
+#define DBREAKC_STOREBREAK_SHIFT        31
+#define DBREAKC_STOREBREAK_MASK         0x80000000
+
+/*  DEBUGCAUSE register fields:  */
+#define DEBUGCAUSE_DEBUGINT_SHIFT       5
+#define DEBUGCAUSE_DEBUGINT_MASK        0x20    /* debug interrupt */
+#define DEBUGCAUSE_BREAKN_SHIFT         4
+#define DEBUGCAUSE_BREAKN_MASK          0x10    /* BREAK.N instruction */
+#define DEBUGCAUSE_BREAK_SHIFT          3
+#define DEBUGCAUSE_BREAK_MASK           0x08    /* BREAK instruction */
+#define DEBUGCAUSE_DBREAK_SHIFT         2
+#define DEBUGCAUSE_DBREAK_MASK          0x04    /* DBREAK match */
+#define DEBUGCAUSE_IBREAK_SHIFT         1
+#define DEBUGCAUSE_IBREAK_MASK          0x02    /* IBREAK match */
+#define DEBUGCAUSE_ICOUNT_SHIFT         0
+#define DEBUGCAUSE_ICOUNT_MASK          0x01    /* ICOUNT would increment to zero */
+
+#endif /*XTENSA_COREBITS_H*/
+
diff --git a/include/asm-xtensa/xtensa/hal.h b/include/asm-xtensa/xtensa/hal.h
new file mode 100644
index 000000000000..d10472505454
--- /dev/null
+++ b/include/asm-xtensa/xtensa/hal.h
@@ -0,0 +1,822 @@
+#ifndef XTENSA_HAL_H
+#define XTENSA_HAL_H
+
+/*
+ * THIS FILE IS GENERATED -- DO NOT MODIFY BY HAND
+ *
+ * include/asm-xtensa/xtensa/hal.h -- contains a definition of the
+ * Core HAL interface.
+ *
+ * All definitions in this header file are independent of any specific
+ * Xtensa processor configuration.  Thus an OS or other software can
+ * include this header file and be compiled into configuration-
+ * independent objects that can be distributed and eventually linked
+ * to the HAL library (libhal.a) to create a configuration-specific
+ * final executable.
+ *
+ * Certain definitions, however, are release-specific -- such as the
+ * XTHAL_RELEASE_xxx macros (or additions made in later releases).
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2002 Tensilica Inc.
+ */
+
+
+/*----------------------------------------------------------------------
+                         Constant Definitions
+                        (shared with assembly)
+  ----------------------------------------------------------------------*/
+
+/*  Software release information (not configuration-specific!):  */
+#define XTHAL_RELEASE_MAJOR     1050
+#define XTHAL_RELEASE_MINOR     0
+#define XTHAL_RELEASE_NAME      "T1050.0-2002-08-06-eng0"
+#define XTHAL_RELEASE_INTERNAL  "2002-08-06-eng0"
+#define XTHAL_REL_T1050 1
+#define XTHAL_REL_T1050_0       1
+#define XTHAL_REL_T1050_0_2002  1
+#define XTHAL_REL_T1050_0_2002_08       1
+#define XTHAL_REL_T1050_0_2002_08_06    1
+#define XTHAL_REL_T1050_0_2002_08_06_ENG0       1
+
+/*  HAL version numbers (these names are for backward compatibility):  */
+#define XTHAL_MAJOR_REV         XTHAL_RELEASE_MAJOR
+#define XTHAL_MINOR_REV         XTHAL_RELEASE_MINOR
+/*
+ *  A bit of software release history on values of XTHAL_{MAJOR,MINOR}_REV:
+ *
+ *      Release         MAJOR   MINOR           Comment
+ *      =======         =====   =====           =======
+ *      T1015.n         n/a     n/a             (HAL not yet available)
+ *      T1020.{0,1,2}   0       1               (HAL beta)
+ *      T1020.{3,4}     0       2               First release.
+ *      T1020.n (n>4)   0       2 or >3         (TBD)
+ *      T1030.0         0       1               (HAL beta)
+ *      T1030.{1,2}     0       3               Equivalent to first release.
+ *      T1030.n (n>=3)  0       >= 3            (TBD)
+ *      T1040.n         1040    n               Full CHAL available from T1040.2
+ *      T1050.n         1050    n               Current release.
+ *
+ *
+ *  Note:  there is a distinction between the software release with
+ *  which something is compiled (accessible using XTHAL_RELEASE_* macros)
+ *  and the software release with which the HAL library was compiled
+ *  (accessible using Xthal_release_* global variables).  This
+ *  distinction is particularly relevant for vendors that distribute
+ *  configuration-independent binaries (eg. an OS), where their customer
+ *  might link it with a HAL of a different Xtensa software release.
+ *  In this case, it may be appropriate for the OS to verify at run-time
+ *  whether XTHAL_RELEASE_* and Xthal_release_* are compatible.
+ *  [Guidelines as to which release is compatible with which are not
+ *  currently provided explicitly, but might be inferred from reading
+ *  OSKit documentation for all releases -- compatibility is also highly
+ *  dependent on which HAL features are used.  Each release is usually
+ *  backward compatible, with very few exceptions if any.]
+ *
+ *  Notes:
+ *      Tornado 2.0 supported in T1020.3+, T1030.1+, and T1040.{0,1} only.
+ *      Tornado 2.0.2 supported in T1040.2+, and T1050.
+ *      Compile-time HAL port of NucleusPlus supported by T1040.2+ and T1050.
+ */
+
+
+/*
+ *  Architectural limits, independent of configuration.
+ *  Note that these are ISA-defined limits, not micro-architecture implementation
+ *  limits enforced by the Xtensa Processor Generator (which may be stricter than
+ *  these below).
+ */
+#define XTHAL_MAX_CPS           8       /* max number of coprocessors (0..7) */
+#define XTHAL_MAX_INTERRUPTS    32      /* max number of interrupts (0..31) */
+#define XTHAL_MAX_INTLEVELS     16      /* max number of interrupt levels (0..15) */
+                                        /* (as of T1040, implementation limit is 7: 0..6) */
+#define XTHAL_MAX_TIMERS        4       /* max number of timers (CCOMPARE0..CCOMPARE3) */
+                                        /* (as of T1040, implementation limit is 3: 0..2) */
+
+/*  Misc:  */
+#define XTHAL_LITTLEENDIAN              0
+#define XTHAL_BIGENDIAN                 1
+
+
+/*  Interrupt types:  */
+#define XTHAL_INTTYPE_UNCONFIGURED      0
+#define XTHAL_INTTYPE_SOFTWARE          1
+#define XTHAL_INTTYPE_EXTERN_EDGE       2
+#define XTHAL_INTTYPE_EXTERN_LEVEL      3
+#define XTHAL_INTTYPE_TIMER             4
+#define XTHAL_INTTYPE_NMI               5
+#define XTHAL_MAX_INTTYPES              6       /* number of interrupt types */
+
+/*  Timer related:  */
+#define XTHAL_TIMER_UNCONFIGURED        -1      /* Xthal_timer_interrupt[] value for non-existent timers */
+#define XTHAL_TIMER_UNASSIGNED  XTHAL_TIMER_UNCONFIGURED        /* (for backwards compatibility only) */
+
+
+/*  Access Mode bits (tentative):  */   /* bit abbr unit short_name       PPC equ - Description */
+#define XTHAL_AMB_EXCEPTION     0       /* 001 E EX fls: EXception        none    - generate exception on any access (aka "illegal") */
+#define XTHAL_AMB_HITCACHE      1       /* 002 C CH fls: use Cache on Hit ~(I CI) - use cache on hit -- way from tag match [or H HC, or U UC] (ISA: same, except for Isolate case) */
+#define XTHAL_AMB_ALLOCATE      2       /* 004 A AL fl?: ALlocate         none    - refill cache on miss -- way from LRU [or F FI fill] (ISA: Read/Write Miss Refill) */
+#define XTHAL_AMB_WRITETHRU     3       /* 008 W WT --s: WriteThrough     W WT    - store immediately to memory (ISA: same) */
+#define XTHAL_AMB_ISOLATE       4       /* 010 I IS fls: ISolate          none    - use cache regardless of hit-vs-miss -- way from vaddr (ISA: use-cache-on-miss+hit) */
+#define XTHAL_AMB_GUARD         5       /* 020 G GU ?l?: GUard            G *     - non-speculative; spec/replay refs not permitted */
+#if 0
+#define XTHAL_AMB_ORDERED       x       /* 000 O OR fls: ORdered          G *     - mem accesses cannot be out of order */
+#define XTHAL_AMB_FUSEWRITES    x       /* 000 F FW --s: FuseWrites       none    - allow combining/merging multiple writes (to same datapath data unit) into one (implied by writeback) */
+#define XTHAL_AMB_COHERENT      x       /* 000 M MC fl?: Mem/MP Coherent  M       - on reads, other CPUs/bus-masters may need to supply data */
+#define XTHAL_AMB_TRUSTED       x       /* 000 T TR ?l?: TRusted          none    - memory will not bus error (if it does, handle as fatal imprecise interrupt) */
+#define XTHAL_AMB_PREFETCH      x       /* 000 P PR fl?: PRefetch         none    - on refill, read line+1 into prefetch buffers */
+#define XTHAL_AMB_STREAM        x       /* 000 S ST ???: STreaming        none    - access one of N stream buffers */
+#endif /*0*/
+
+#define XTHAL_AM_EXCEPTION      (1<<XTHAL_AMB_EXCEPTION)
+#define XTHAL_AM_HITCACHE       (1<<XTHAL_AMB_HITCACHE)
+#define XTHAL_AM_ALLOCATE       (1<<XTHAL_AMB_ALLOCATE)
+#define XTHAL_AM_WRITETHRU      (1<<XTHAL_AMB_WRITETHRU)
+#define XTHAL_AM_ISOLATE        (1<<XTHAL_AMB_ISOLATE)
+#define XTHAL_AM_GUARD          (1<<XTHAL_AMB_GUARD)
+#if 0
+#define XTHAL_AM_ORDERED        (1<<XTHAL_AMB_ORDERED)
+#define XTHAL_AM_FUSEWRITES     (1<<XTHAL_AMB_FUSEWRITES)
+#define XTHAL_AM_COHERENT       (1<<XTHAL_AMB_COHERENT)
+#define XTHAL_AM_TRUSTED        (1<<XTHAL_AMB_TRUSTED)
+#define XTHAL_AM_PREFETCH       (1<<XTHAL_AMB_PREFETCH)
+#define XTHAL_AM_STREAM         (1<<XTHAL_AMB_STREAM)
+#endif /*0*/
+
+/*
+ *  Allowed Access Modes (bit combinations).
+ *
+ *  Columns are:
+ *  "FOGIWACE"
+ *      Access mode bits (see XTHAL_AMB_xxx above).
+ *      <letter> = bit is set
+ *      '-'      = bit is clear
+ *      '.'      = bit is irrelevant / don't care, as follows:
+ *                      E=1 makes all others irrelevant
+ *                      W,F relevant only for stores
+ *  "2345"
+ *      Indicates which Xtensa releases support the corresponding
+ *      access mode.  Releases for each character column are:
+ *              2 = prior to T1020.2:   T1015 (V1.5), T1020.0, T1020.1
+ *              3 = T1020.2 and later:  T1020.2+, T1030
+ *              4 = T1040
+ *              5 = T1050 (maybe)
+ *      And the character column contents are:
+ *              <number> = support by release(s)
+ *              "." = unsupported by release(s)
+ *              "?" = support unknown
+ */
+                                        /* FOGIWACE 2345 */
+/*  For instruction fetch:  */
+#define XTHAL_FAM_EXCEPTION     0x001   /* .......E 2345 exception */
+#define XTHAL_FAM_ISOLATE       0x012   /* .--I.-C- .... isolate */
+#define XTHAL_FAM_BYPASS        0x000   /* .---.--- 2345 bypass */
+#define XTHAL_FAM_NACACHED      0x002   /* .---.-C- .... cached no-allocate (frozen) */
+#define XTHAL_FAM_CACHED        0x006   /* .---.AC- 2345 cached */
+/*  For data load:  */
+#define XTHAL_LAM_EXCEPTION     0x001   /* .......E 2345 exception */
+#define XTHAL_LAM_ISOLATE       0x012   /* .--I.-C- 2345 isolate */
+#define XTHAL_LAM_BYPASS        0x000   /* .O--.--- 2... bypass speculative */
+#define XTHAL_LAM_BYPASSG       0x020   /* .OG-.--- .345 bypass guarded */
+#define XTHAL_LAM_NACACHED      0x002   /* .O--.-C- 2... cached no-allocate speculative */
+#define XTHAL_LAM_NACACHEDG     0x022   /* .OG-.-C- .345 cached no-allocate guarded */
+#define XTHAL_LAM_CACHED        0x006   /* .---.AC- 2345 cached speculative */
+#define XTHAL_LAM_CACHEDG       0x026   /* .?G-.AC- .... cached guarded */
+/*  For data store:  */
+#define XTHAL_SAM_EXCEPTION     0x001   /* .......E 2345 exception */
+#define XTHAL_SAM_ISOLATE       0x032   /* .-GI--C- 2345 isolate */
+#define XTHAL_SAM_BYPASS        0x028   /* -OG-W--- 2345 bypass */
+/*efine XTHAL_SAM_BYPASSF       0x028*/ /* F-G-W--- ...? bypass write-combined */
+#define XTHAL_SAM_WRITETHRU     0x02A   /* -OG-W-C- 234? writethrough */
+/*efine XTHAL_SAM_WRITETHRUF    0x02A*/ /* F-G-W-C- ...5 writethrough write-combined */
+#define XTHAL_SAM_WRITEALLOC    0x02E   /* -OG-WAC- ...? writethrough-allocate */
+/*efine XTHAL_SAM_WRITEALLOCF   0x02E*/ /* F-G-WAC- ...? writethrough-allocate write-combined */
+#define XTHAL_SAM_WRITEBACK     0x026   /* F-G--AC- ...5 writeback */
+
+#if 0
+/*
+    Cache attribute encoding for CACHEATTR (per ISA):
+    (Note:  if this differs from ISA Ref Manual, ISA has precedence)
+
+        Inst-fetches    Loads           Stores
+        -------------   ------------    -------------
+0x0     FCA_EXCEPTION  ?LCA_NACACHED_G* SCA_WRITETHRU   "uncached"
+0x1     FCA_CACHED      LCA_CACHED      SCA_WRITETHRU   cached
+0x2     FCA_BYPASS      LCA_BYPASS_G*   SCA_BYPASS      bypass
+0x3     FCA_CACHED      LCA_CACHED      SCA_WRITEALLOCF write-allocate
+                     or LCA_EXCEPTION   SCA_EXCEPTION   (if unimplemented)
+0x4     FCA_CACHED      LCA_CACHED      SCA_WRITEBACK   write-back
+                     or LCA_EXCEPTION   SCA_EXCEPTION   (if unimplemented)
+0x5..D  FCA_EXCEPTION   LCA_EXCEPTION   SCA_EXCEPTION   (reserved)
+0xE     FCA_EXCEPTION   LCA_ISOLATE     SCA_ISOLATE     isolate
+0xF     FCA_EXCEPTION   LCA_EXCEPTION   SCA_EXCEPTION   illegal
+     *  Prior to T1020.2?, guard feature not supported, this defaulted to speculative (no _G)
+*/
+#endif /*0*/
+
+
+#if !defined(__ASSEMBLY__) && !defined(_NOCLANGUAGE)
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*----------------------------------------------------------------------
+                             HAL
+  ----------------------------------------------------------------------*/
+
+/* Constant to be checked in build = (XTHAL_MAJOR_REV<<16)|XTHAL_MINOR_REV */
+extern const unsigned int Xthal_rev_no;
+
+
+/*----------------------------------------------------------------------
+                        Processor State
+  ----------------------------------------------------------------------*/
+/* save & restore the extra processor state */
+extern void xthal_save_extra(void *base);
+extern void xthal_restore_extra(void *base);
+
+extern void xthal_save_cpregs(void *base, int);
+extern void xthal_restore_cpregs(void *base, int);
+
+/*extern void xthal_save_all_extra(void *base);*/
+/*extern void xthal_restore_all_extra(void *base);*/
+
+/* space for processor state */
+extern const unsigned int Xthal_extra_size;
+extern const unsigned int Xthal_extra_align;
+/* space for TIE register files */
+extern const unsigned int Xthal_cpregs_size[XTHAL_MAX_CPS];
+extern const unsigned int Xthal_cpregs_align[XTHAL_MAX_CPS];
+
+/* total of space for the processor state (for Tor2) */
+extern const unsigned int Xthal_all_extra_size;
+extern const unsigned int Xthal_all_extra_align;
+
+/* initialize the extra processor */
+/*extern void xthal_init_extra(void);*/
+/* initialize the TIE coprocessor */
+/*extern void xthal_init_cp(int);*/
+
+/* initialize the extra processor */
+extern void xthal_init_mem_extra(void *);
+/* initialize the TIE coprocessor */
+extern void xthal_init_mem_cp(void *, int);
+
+/* validate & invalidate the TIE register file */
+extern void xthal_validate_cp(int);
+extern void xthal_invalidate_cp(int);
+
+/* the number of TIE coprocessors contiguous from zero (for Tor2) */
+extern const unsigned int Xthal_num_coprocessors;
+
+/* actual number of coprocessors */
+extern const unsigned char Xthal_cp_num;
+/* index of highest numbered coprocessor, plus one */
+extern const unsigned char Xthal_cp_max;
+/* index of highest allowed coprocessor number, per cfg, plus one */
+/*extern const unsigned char Xthal_cp_maxcfg;*/
+/* bitmask of which coprocessors are present */
+extern const unsigned int  Xthal_cp_mask;
+
+/* read and write cpenable register */
+extern void xthal_set_cpenable(unsigned);
+extern unsigned xthal_get_cpenable(void);
+
+/* read & write extra state register */
+/*extern int xthal_read_extra(void *base, unsigned reg, unsigned *value);*/
+/*extern int xthal_write_extra(void *base, unsigned reg, unsigned value);*/
+
+/* read & write a TIE coprocessor register */
+/*extern int xthal_read_cpreg(void *base, int cp, unsigned reg, unsigned *value);*/
+/*extern int xthal_write_cpreg(void *base, int cp, unsigned reg, unsigned value);*/
+
+/* return coprocessor number based on register */
+/*extern int xthal_which_cp(unsigned reg);*/
+
+/*----------------------------------------------------------------------
+                                Interrupts
+  ----------------------------------------------------------------------*/
+
+/* the number of interrupt levels */
+extern const unsigned char Xthal_num_intlevels;
+/* the number of interrupts */
+extern const unsigned char Xthal_num_interrupts;
+
+/* mask for level of interrupts */
+extern const unsigned int Xthal_intlevel_mask[XTHAL_MAX_INTLEVELS];
+/* mask for level 0 to N interrupts */
+extern const unsigned int Xthal_intlevel_andbelow_mask[XTHAL_MAX_INTLEVELS];
+
+/* level of each interrupt */
+extern const unsigned char Xthal_intlevel[XTHAL_MAX_INTERRUPTS];
+
+/* type per interrupt */
+extern const unsigned char Xthal_inttype[XTHAL_MAX_INTERRUPTS];
+
+/* masks of each type of interrupt */
+extern const unsigned int Xthal_inttype_mask[XTHAL_MAX_INTTYPES];
+
+/* interrupt numbers assigned to each timer interrupt */
+extern const int Xthal_timer_interrupt[XTHAL_MAX_TIMERS];
+
+/***  Virtual interrupt prioritization:  ***/
+
+/*  Convert between interrupt levels (as per PS.INTLEVEL) and virtual interrupt priorities:  */
+extern unsigned xthal_vpri_to_intlevel(unsigned vpri);
+extern unsigned xthal_intlevel_to_vpri(unsigned intlevel);
+
+/*  Enables/disables given set (mask) of interrupts; returns previous enabled-mask of all ints:  */
+extern unsigned xthal_int_enable(unsigned);
+extern unsigned xthal_int_disable(unsigned);
+
+/*  Set/get virtual priority of an interrupt:  */
+extern int      xthal_set_int_vpri(int intnum, int vpri);
+extern int      xthal_get_int_vpri(int intnum);
+
+/*  Set/get interrupt lockout level for exclusive access to virtual priority data structures:  */
+extern void     xthal_set_vpri_locklevel(unsigned intlevel);
+extern unsigned xthal_get_vpri_locklevel(void);
+
+/*  Set/get current virtual interrupt priority:  */
+extern unsigned xthal_set_vpri(unsigned vpri);
+extern unsigned xthal_get_vpri(unsigned vpri);
+extern unsigned xthal_set_vpri_intlevel(unsigned intlevel);
+extern unsigned xthal_set_vpri_lock(void);
+
+
+
+/*----------------------------------------------------------------------
+                        Generic Interrupt Trampolining Support
+  ----------------------------------------------------------------------*/
+
+typedef void (XtHalVoidFunc)(void);
+
+/*
+ *  Bitmask of interrupts currently trampolining down:
+ */
+extern unsigned Xthal_tram_pending;
+
+/*
+ *  Bitmask of which interrupts currently trampolining down
+ *  synchronously are actually enabled; this bitmask is necessary
+ *  because INTENABLE cannot hold that state (sync-trampolining
+ *  interrupts must be kept disabled while trampolining);
+ *  in the current implementation, any bit set here is not set
+ *  in INTENABLE, and vice-versa; once a sync-trampoline is
+ *  handled (at level one), its enable bit must be moved from
+ *  here to INTENABLE:
+ */
+extern unsigned Xthal_tram_enabled;
+
+/*
+ *  Bitmask of interrupts configured for sync trampolining:
+ */
+extern unsigned Xthal_tram_sync;
+
+
+/*  Trampoline support functions:  */
+extern unsigned  xthal_tram_pending_to_service( void );
+extern void      xthal_tram_done( unsigned serviced_mask );
+extern int       xthal_tram_set_sync( int intnum, int sync );
+extern XtHalVoidFunc* xthal_set_tram_trigger_func( XtHalVoidFunc *trigger_fn );
+
+/*  INTENABLE,INTREAD,INTSET,INTCLEAR register access functions:  */
+extern unsigned  xthal_get_intenable( void );
+extern void      xthal_set_intenable( unsigned );
+extern unsigned  xthal_get_intread( void );
+extern void      xthal_set_intset( unsigned );
+extern void      xthal_set_intclear( unsigned );
+
+
+/*----------------------------------------------------------------------
+                                Register Windows
+  ----------------------------------------------------------------------*/
+
+/* number of registers in register window */
+extern const unsigned int  Xthal_num_aregs;
+extern const unsigned char Xthal_num_aregs_log2;
+
+/*  This spill any live register windows (other than the caller's):  */
+extern void      xthal_window_spill( void );
+
+
+/*----------------------------------------------------------------------
+                                Cache
+  ----------------------------------------------------------------------*/
+
+/* size of the cache lines in log2(bytes) */
+extern const unsigned char Xthal_icache_linewidth;
+extern const unsigned char Xthal_dcache_linewidth;
+/* size of the cache lines in bytes */
+extern const unsigned short Xthal_icache_linesize;
+extern const unsigned short Xthal_dcache_linesize;
+/* number of cache sets in log2(lines per way) */
+extern const unsigned char Xthal_icache_setwidth;
+extern const unsigned char Xthal_dcache_setwidth;
+/* cache set associativity (number of ways) */
+extern const unsigned int  Xthal_icache_ways;
+extern const unsigned int  Xthal_dcache_ways;
+/* size of the caches in bytes (ways * 2^(linewidth + setwidth)) */
+extern const unsigned int  Xthal_icache_size;
+extern const unsigned int  Xthal_dcache_size;
+/* cache features */
+extern const unsigned char Xthal_dcache_is_writeback;
+extern const unsigned char Xthal_icache_line_lockable;
+extern const unsigned char Xthal_dcache_line_lockable;
+
+/* cache attribute register control (used by other HAL routines) */
+extern unsigned xthal_get_cacheattr( void );
+extern unsigned xthal_get_icacheattr( void );
+extern unsigned xthal_get_dcacheattr( void );
+extern void     xthal_set_cacheattr( unsigned );
+extern void     xthal_set_icacheattr( unsigned );
+extern void     xthal_set_dcacheattr( unsigned );
+
+/* initialize cache support (must be called once at startup, before all other cache calls) */
+/*extern void xthal_cache_startinit( void );*/
+/* reset caches */
+/*extern void xthal_icache_reset( void );*/
+/*extern void xthal_dcache_reset( void );*/
+/* enable caches */
+extern void xthal_icache_enable( void );        /* DEPRECATED */
+extern void xthal_dcache_enable( void );        /* DEPRECATED */
+/* disable caches */
+extern void xthal_icache_disable( void );       /* DEPRECATED */
+extern void xthal_dcache_disable( void );       /* DEPRECATED */
+
+/* invalidate the caches */
+extern void xthal_icache_all_invalidate( void );
+extern void xthal_dcache_all_invalidate( void );
+extern void xthal_icache_region_invalidate( void *addr, unsigned size );
+extern void xthal_dcache_region_invalidate( void *addr, unsigned size );
+extern void xthal_icache_line_invalidate(void *addr);
+extern void xthal_dcache_line_invalidate(void *addr);
+/* write dirty data back */
+extern void xthal_dcache_all_writeback( void );
+extern void xthal_dcache_region_writeback( void *addr, unsigned size );
+extern void xthal_dcache_line_writeback(void *addr);
+/* write dirty data back and invalidate */
+extern void xthal_dcache_all_writeback_inv( void );
+extern void xthal_dcache_region_writeback_inv( void *addr, unsigned size );
+extern void xthal_dcache_line_writeback_inv(void *addr);
+/* prefetch and lock specified memory range into cache */
+extern void xthal_icache_region_lock( void *addr, unsigned size );
+extern void xthal_dcache_region_lock( void *addr, unsigned size );
+extern void xthal_icache_line_lock(void *addr);
+extern void xthal_dcache_line_lock(void *addr);
+/* unlock from cache */
+extern void xthal_icache_all_unlock( void );
+extern void xthal_dcache_all_unlock( void );
+extern void xthal_icache_region_unlock( void *addr, unsigned size );
+extern void xthal_dcache_region_unlock( void *addr, unsigned size );
+extern void xthal_icache_line_unlock(void *addr);
+extern void xthal_dcache_line_unlock(void *addr);
+
+
+/* sync icache and memory */
+extern void xthal_icache_sync( void );
+/* sync dcache and memory */
+extern void xthal_dcache_sync( void );
+
+/*----------------------------------------------------------------------
+                                Debug
+  ----------------------------------------------------------------------*/
+
+/*  1 if debug option configured, 0 if not:  */
+extern const int Xthal_debug_configured;
+
+/*  Number of instruction and data break registers:  */
+extern const int Xthal_num_ibreak;
+extern const int Xthal_num_dbreak;
+
+/*  Set (plant) and remove software breakpoint, both synchronizing cache:  */
+extern unsigned int xthal_set_soft_break(void *addr);
+extern void         xthal_remove_soft_break(void *addr, unsigned int);
+
+
+/*----------------------------------------------------------------------
+                                Disassembler
+  ----------------------------------------------------------------------*/
+
+/*  Max expected size of the return buffer for a disassembled instruction (hint only):  */
+#define XTHAL_DISASM_BUFSIZE    80
+
+/*  Disassembly option bits for selecting what to return:  */
+#define XTHAL_DISASM_OPT_ADDR   0x0001  /* display address */
+#define XTHAL_DISASM_OPT_OPHEX  0x0002  /* display opcode bytes in hex */
+#define XTHAL_DISASM_OPT_OPCODE 0x0004  /* display opcode name (mnemonic) */
+#define XTHAL_DISASM_OPT_PARMS  0x0008  /* display parameters */
+#define XTHAL_DISASM_OPT_ALL    0x0FFF  /* display everything */
+
+/* routine to get a string for the disassembled instruction */
+extern int xthal_disassemble( unsigned char *instr_buf, void *tgt_addr,
+                       char *buffer, unsigned buflen, unsigned options );
+
+/* routine to get the size of the next instruction. Returns 0 for
+   illegal instruction */
+extern int xthal_disassemble_size( unsigned char *instr_buf );
+
+
+/*----------------------------------------------------------------------
+                                Core Counter
+  ----------------------------------------------------------------------*/
+
+/* counter info */
+extern const unsigned char Xthal_have_ccount;   /* set if CCOUNT register present */
+extern const unsigned char Xthal_num_ccompare;  /* number of CCOMPAREn registers */
+
+/* get CCOUNT register (if not present return 0) */
+extern unsigned xthal_get_ccount(void);
+
+/* set and get CCOMPAREn registers (if not present, get returns 0) */
+extern void     xthal_set_ccompare(int, unsigned);
+extern unsigned xthal_get_ccompare(int);
+
+
+/*----------------------------------------------------------------------
+                        Instruction/Data RAM/ROM Access
+  ----------------------------------------------------------------------*/
+
+extern void* xthal_memcpy(void *dst, const void *src, unsigned len);
+extern void* xthal_bcopy(const void *src, void *dst, unsigned len);
+
+/*----------------------------------------------------------------------
+                           MP Synchronization
+  ----------------------------------------------------------------------*/
+extern int      xthal_compare_and_set( int *addr, int test_val, int compare_val );
+extern unsigned xthal_get_prid( void );
+
+/*extern const char  Xthal_have_s32c1i;*/
+extern const unsigned char Xthal_have_prid;
+
+
+/*----------------------------------------------------------------------
+                             Miscellaneous
+  ----------------------------------------------------------------------*/
+
+extern const unsigned int  Xthal_release_major;
+extern const unsigned int  Xthal_release_minor;
+extern const char * const  Xthal_release_name;
+extern const char * const  Xthal_release_internal;
+
+extern const unsigned char Xthal_memory_order;
+extern const unsigned char Xthal_have_windowed;
+extern const unsigned char Xthal_have_density;
+extern const unsigned char Xthal_have_booleans;
+extern const unsigned char Xthal_have_loops;
+extern const unsigned char Xthal_have_nsa;
+extern const unsigned char Xthal_have_minmax;
+extern const unsigned char Xthal_have_sext;
+extern const unsigned char Xthal_have_clamps;
+extern const unsigned char Xthal_have_mac16;
+extern const unsigned char Xthal_have_mul16;
+extern const unsigned char Xthal_have_fp;
+extern const unsigned char Xthal_have_speculation;
+extern const unsigned char Xthal_have_exceptions;
+extern const unsigned char Xthal_xea_version;
+extern const unsigned char Xthal_have_interrupts;
+extern const unsigned char Xthal_have_highlevel_interrupts;
+extern const unsigned char Xthal_have_nmi;
+
+extern const unsigned short Xthal_num_writebuffer_entries;
+
+extern const unsigned int  Xthal_build_unique_id;
+/*  Release info for hardware targeted by software upgrades:  */
+extern const unsigned int  Xthal_hw_configid0;
+extern const unsigned int  Xthal_hw_configid1;
+extern const unsigned int  Xthal_hw_release_major;
+extern const unsigned int  Xthal_hw_release_minor;
+extern const char * const  Xthal_hw_release_name;
+extern const char * const  Xthal_hw_release_internal;
+
+
+/*  Internal memories...  */
+
+extern const unsigned char Xthal_num_instrom;
+extern const unsigned char Xthal_num_instram;
+extern const unsigned char Xthal_num_datarom;
+extern const unsigned char Xthal_num_dataram;
+extern const unsigned char Xthal_num_xlmi;
+extern const unsigned int  Xthal_instrom_vaddr[1];
+extern const unsigned int  Xthal_instrom_paddr[1];
+extern const unsigned int  Xthal_instrom_size [1];
+extern const unsigned int  Xthal_instram_vaddr[1];
+extern const unsigned int  Xthal_instram_paddr[1];
+extern const unsigned int  Xthal_instram_size [1];
+extern const unsigned int  Xthal_datarom_vaddr[1];
+extern const unsigned int  Xthal_datarom_paddr[1];
+extern const unsigned int  Xthal_datarom_size [1];
+extern const unsigned int  Xthal_dataram_vaddr[1];
+extern const unsigned int  Xthal_dataram_paddr[1];
+extern const unsigned int  Xthal_dataram_size [1];
+extern const unsigned int  Xthal_xlmi_vaddr[1];
+extern const unsigned int  Xthal_xlmi_paddr[1];
+extern const unsigned int  Xthal_xlmi_size [1];
+
+
+
+/*----------------------------------------------------------------------
+                         Memory Management Unit
+  ----------------------------------------------------------------------*/
+
+extern const unsigned char Xthal_have_spanning_way;
+extern const unsigned char Xthal_have_identity_map;
+extern const unsigned char Xthal_have_mimic_cacheattr;
+extern const unsigned char Xthal_have_xlt_cacheattr;
+extern const unsigned char Xthal_have_cacheattr;
+extern const unsigned char Xthal_have_tlbs;
+
+extern const unsigned char Xthal_mmu_asid_bits;         /* 0 .. 8 */
+extern const unsigned char Xthal_mmu_asid_kernel;
+extern const unsigned char Xthal_mmu_rings;             /* 1 .. 4 (perhaps 0 if no MMU and/or no protection?) */
+extern const unsigned char Xthal_mmu_ring_bits;
+extern const unsigned char Xthal_mmu_sr_bits;
+extern const unsigned char Xthal_mmu_ca_bits;
+extern const unsigned int  Xthal_mmu_max_pte_page_size;
+extern const unsigned int  Xthal_mmu_min_pte_page_size;
+
+extern const unsigned char Xthal_itlb_way_bits;
+extern const unsigned char Xthal_itlb_ways;
+extern const unsigned char Xthal_itlb_arf_ways;
+extern const unsigned char Xthal_dtlb_way_bits;
+extern const unsigned char Xthal_dtlb_ways;
+extern const unsigned char Xthal_dtlb_arf_ways;
+
+/*  Convert between virtual and physical addresses (through static maps only):  */
+/*** WARNING: these two functions may go away in a future release; don't depend on them! ***/
+extern int  xthal_static_v2p( unsigned vaddr, unsigned *paddrp );
+extern int  xthal_static_p2v( unsigned paddr, unsigned *vaddrp, unsigned cached );
+
+#if 0
+/*******************   EXPERIMENTAL AND TENTATIVE ONLY   ********************/
+
+#define XTHAL_MMU_PAGESZ_COUNT_MAX      8       /* maximum number of different page sizes */
+extern const char       Xthal_mmu_pagesz_count;         /* 0 .. 8               number of different page sizes configured */
+
+/*  Note:  the following table doesn't necessarily have page sizes in increasing order: */
+extern const char       Xthal_mmu_pagesz_log2[XTHAL_MMU_PAGESZ_COUNT_MAX];      /* 10 .. 28 (0 past count) */
+
+/*  Sorted (increasing) table of page sizes, that indexes into the above table: */
+extern const char       Xthal_mmu_pagesz_sorted[XTHAL_MMU_PAGESZ_COUNT_MAX];    /* 0 .. 7 (0 past count) */
+
+/*u32   Xthal_virtual_exceptions;*/     /* bitmask of which exceptions execute in virtual mode... */
+
+extern const char       Xthal_mmu_pte_pagesz_log2_min;  /* ?? minimum page size in PTEs */
+extern const char       Xthal_mmu_pte_pagesz_log2_max;  /* ?? maximum page size in PTEs */
+
+/*  Cache Attribute Bits Implemented by the Cache (part of the cache abstraction) */
+extern const char       Xthal_icache_fca_bits_implemented;      /* ITLB/UTLB only! */
+extern const char       Xthal_dcache_lca_bits_implemented;      /* DTLB/UTLB only! */
+extern const char       Xthal_dcache_sca_bits_implemented;      /* DTLB/UTLB only! */
+
+/*  Per TLB Parameters (Instruction, Data, Unified)  */
+struct XtHalMmuTlb      Xthal_itlb;     /* description of MMU I-TLB generic features */
+struct XtHalMmuTlb      Xthal_dtlb;     /* description of MMU D-TLB generic features */
+struct XtHalMmuTlb      Xthal_utlb;     /* description of MMU U-TLB generic features */
+
+#define XTHAL_MMU_WAYS_MAX      8       /* maximum number of ways (associativities) for each TLB */
+
+/*  Structure for common information described for each possible TLB (instruction, data and unified): */
+typedef struct XtHalMmuTlb {
+    u8          va_bits;                /* 32           (number of virtual address bits) */
+    u8          pa_bits;                /* 32           (number of physical address bits) */
+    bool        tlb_va_indexed;         /* 1    (set if TLB is indexed by virtual address) */
+    bool        tlb_va_tagged;          /* 0    (set if TLB is tagged by virtual address) */
+    bool        cache_va_indexed;       /* 1    (set if cache is indexed by virtual address) */
+    bool        cache_va_tagged;        /* 0    (set if cache is tagged by virtual address) */
+    /*bool      (whether page tables are traversed in vaddr sorted order, paddr sorted order, ...) */
+    /*u8        (set of available page attribute bits, other than cache attribute bits defined above) */
+    /*u32       (various masks for pages, MMU table/TLB entries, etc.) */
+    u8          way_count;              /* 0 .. 8       (number of ways, a.k.a. associativities, for this TLB) */
+    XtHalMmuTlbWay *    ways[XTHAL_MMU_WAYS_MAX];       /* pointers to per-way parms for each way */
+} XtHalMmuTlb;
+
+/*  Per TLB Way (Per Associativity) Parameters  */
+typedef struct XtHalMmuTlbWay {
+     u32        index_count_log2;       /* 0 .. 4 */
+     u32        pagesz_mask;            /* 0 .. 2^pagesz_count - 1      (each bit corresponds to a size */
+                                        /*              defined in the Xthal_mmu_pagesz_log2[] table) */
+     u32        vpn_const_mask;
+     u32        vpn_const_value;
+     u64        ppn_const_mask;         /* future may support pa_bits > 32 */
+     u64        ppn_const_value;
+     u32        ppn_id_mask;            /* paddr bits taken directly from vaddr */
+     bool       backgnd_match;          /* 0 or 1 */
+     /*  These are defined in terms of the XTHAL_CACHE_xxx bits: */
+     u8         fca_const_mask;         /* ITLB/UTLB only! */
+     u8         fca_const_value;        /* ITLB/UTLB only! */
+     u8         lca_const_mask;         /* DTLB/UTLB only! */
+     u8         lca_const_value;        /* DTLB/UTLB only! */
+     u8         sca_const_mask;         /* DTLB/UTLB only! */
+     u8         sca_const_value;        /* DTLB/UTLB only! */
+     /*  These define an encoding that map 5 bits in TLB and PTE entries to */
+     /*  8 bits (FCA, ITLB), 16 bits (LCA+SCA, DTLB) or 24 bits (FCA+LCA+SCA, UTLB): */
+     /*  (they may be moved to struct XtHalMmuTlb) */
+     u8         ca_bits;                /* number of bits in TLB/PTE entries for cache attributes */
+     u32 *      ca_map;                 /* pointer to array of 2^ca_bits entries of FCA+LCA+SCA bits */
+} XtHalMmuTlbWay;
+
+/*
+ *  The way to determine whether protection support is present in core
+ *  is to [look at Xthal_mmu_rings ???].
+ *  Give info on memory requirements for MMU tables and other in-memory
+ *  data structures (globally, per task, base and per page, etc.) - whatever bounds can be calculated.
+ */
+
+
+/*  Default vectors:  */
+xthal_immu_fetch_miss_vector
+xthal_dmmu_load_miss_vector
+xthal_dmmu_store_miss_vector
+
+/*  Functions called when a fault is detected:  */
+typedef void (XtHalMmuFaultFunc)( unsigned vaddr, ...context... );
+/*  Or, */
+/*      a? = vaddr */
+/*      a? = context... */
+/*      PS.xxx = xxx */
+XtHalMMuFaultFunc *Xthal_immu_fetch_fault_func;
+XtHalMMuFaultFunc *Xthal_dmmu_load_fault_func;
+XtHalMMuFaultFunc *Xthal_dmmu_store_fault_func;
+
+/*  Default Handlers:  */
+/*  The user and/or kernel exception handlers may jump to these handlers to handle the relevant exceptions,
+ *  according to the value of EXCCAUSE.  The exact register state on entry to these handlers is TBD.  */
+/*  When multiple TLB entries match (hit) on the same access:  */
+xthal_immu_fetch_multihit_handler
+xthal_dmmu_load_multihit_handler
+xthal_dmmu_store_multihit_handler
+/*  Protection violations according to cache attributes, and other cache attribute mismatches:  */
+xthal_immu_fetch_attr_handler
+xthal_dmmu_load_attr_handler
+xthal_dmmu_store_attr_handler
+/*  Protection violations due to insufficient ring level:  */
+xthal_immu_fetch_priv_handler
+xthal_dmmu_load_priv_handler
+xthal_dmmu_store_priv_handler
+/*  Alignment exception handlers (if supported by the particular Xtensa MMU configuration):  */
+xthal_dmmu_load_align_handler
+xthal_dmmu_store_align_handler
+
+/*  Or, alternatively, the OS user and/or kernel exception handlers may simply jump to the
+ *  following entry points which will handle any values of EXCCAUSE not handled by the OS:  */
+xthal_user_exc_default_handler
+xthal_kernel_exc_default_handler
+
+#endif /*0*/
+
+#ifdef INCLUDE_DEPRECATED_HAL_CODE
+extern const unsigned char Xthal_have_old_exc_arch;
+extern const unsigned char Xthal_have_mmu;
+extern const unsigned int  Xthal_num_regs;
+extern const unsigned char Xthal_num_iroms;
+extern const unsigned char Xthal_num_irams;
+extern const unsigned char Xthal_num_droms;
+extern const unsigned char Xthal_num_drams;
+extern const unsigned int  Xthal_configid0;
+extern const unsigned int  Xthal_configid1;
+#endif
+
+#ifdef INCLUDE_DEPRECATED_HAL_DEBUG_CODE
+#define XTHAL_24_BIT_BREAK              0x80000000
+#define XTHAL_16_BIT_BREAK              0x40000000
+extern const unsigned short     Xthal_ill_inst_16[16];
+#define XTHAL_DEST_REG          0xf0000000      /* Mask for destination register */
+#define XTHAL_DEST_REG_INST     0x08000000      /* Branch address is in register */
+#define XTHAL_DEST_REL_INST     0x04000000      /* Branch address is relative */
+#define XTHAL_RFW_INST          0x00000800
+#define XTHAL_RFUE_INST         0x00000400
+#define XTHAL_RFI_INST          0x00000200
+#define XTHAL_RFE_INST          0x00000100
+#define XTHAL_RET_INST          0x00000080
+#define XTHAL_BREAK_INST        0x00000040
+#define XTHAL_SYSCALL_INST      0x00000020
+#define XTHAL_LOOP_END          0x00000010      /* Not set by xthal_inst_type */
+#define XTHAL_JUMP_INST         0x00000008      /* Call or jump instruction */
+#define XTHAL_BRANCH_INST       0x00000004      /* Branch instruction */
+#define XTHAL_24_BIT_INST       0x00000002
+#define XTHAL_16_BIT_INST   0x00000001
+typedef struct xthal_state {
+    unsigned    pc;
+    unsigned    ar[16];
+    unsigned    lbeg;
+    unsigned    lend;
+    unsigned    lcount;
+    unsigned    extra_ptr;
+    unsigned    cpregs_ptr[XTHAL_MAX_CPS];
+} XTHAL_STATE;
+extern unsigned int xthal_inst_type(void *addr);
+extern unsigned int xthal_branch_addr(void *addr);
+extern unsigned int xthal_get_npc(XTHAL_STATE *user_state);
+#endif /* INCLUDE_DEPRECATED_HAL_DEBUG_CODE */
+
+#ifdef __cplusplus
+}
+#endif
+#endif /*!__ASSEMBLY__ */
+
+#endif /*XTENSA_HAL_H*/
+
diff --git a/include/asm-xtensa/xtensa/simcall.h b/include/asm-xtensa/xtensa/simcall.h
new file mode 100644
index 000000000000..a2b868929a49
--- /dev/null
+++ b/include/asm-xtensa/xtensa/simcall.h
@@ -0,0 +1,130 @@
+#ifndef SIMCALL_INCLUDED
+#define SIMCALL_INCLUDED
+
+/*
+ * THIS FILE IS GENERATED -- DO NOT MODIFY BY HAND
+ *
+ * include/asm-xtensa/xtensa/simcall.h  -  Simulator call numbers
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file "COPYING" in the main directory of
+ * this archive for more details.
+ *
+ * Copyright (C) 2002 Tensilica Inc.
+ */
+
+
+/*
+ *  System call like services offered by the simulator host.
+ *  These are modeled after the Linux 2.4 kernel system calls
+ *  for Xtensa processors.  However not all system calls and
+ *  not all functionality of a given system call are implemented,
+ *  or necessarily have well defined or equivalent semantics in
+ *  the context of a simulation (as opposed to a Unix kernel).
+ *
+ *  These services behave largely as if they had been invoked
+ *  as a task in the simulator host's operating system
+ *  (eg. files accessed are those of the simulator host).
+ *  However, these SIMCALLs model a virtual operating system
+ *  so that various definitions, bit assignments etc
+ *  (eg. open mode bits, errno values, etc) are independent
+ *  of the host operating system used to run the simulation.
+ *  Rather these definitions are specific to the Xtensa ISS.
+ *  This way Xtensa ISA code written to use these SIMCALLs
+ *  can (in principle) be simulated on any host.
+ *
+ *  Up to 6 parameters are passed in registers a3 to a8
+ *  (note the 6th parameter isn't passed on the stack,
+ *   unlike windowed function calling conventions).
+ *  The return value is in a2.  A negative value in the
+ *  range -4096 to -1 indicates a negated error code to be
+ *  reported in errno with a return value of -1, otherwise
+ *  the value in a2 is returned as is.
+ */
+
+/* These #defines need to match what's in Xtensa/OS/vxworks/xtiss/simcalls.c */
+
+#define SYS_nop         0       /* n/a - setup; used to flush register windows */
+#define SYS_exit        1       /*x*/
+#define SYS_fork        2
+#define SYS_read        3       /*x*/
+#define SYS_write       4       /*x*/
+#define SYS_open        5       /*x*/
+#define SYS_close       6       /*x*/
+#define SYS_rename      7       /*x 38 - waitpid */
+#define SYS_creat       8       /*x*/
+#define SYS_link        9       /*x (not implemented on WIN32) */
+#define SYS_unlink      10      /*x*/
+#define SYS_execv       11      /* n/a - execve */
+#define SYS_execve      12      /* 11 - chdir */
+#define SYS_pipe        13      /* 42 - time */
+#define SYS_stat        14      /* 106 - mknod */
+#define SYS_chmod       15
+#define SYS_chown       16      /* 202 - lchown */
+#define SYS_utime       17      /* 30 - break */
+#define SYS_wait        18      /* n/a - oldstat */
+#define SYS_lseek       19      /*x*/
+#define SYS_getpid      20
+#define SYS_isatty      21      /* n/a - mount */
+#define SYS_fstat       22      /* 108 - oldumount */
+#define SYS_time        23      /* 13 - setuid */
+#define SYS_gettimeofday 24     /*x 78 - getuid (not implemented on WIN32) */
+#define SYS_times       25      /*X 43 - stime (Xtensa-specific implementation) */
+#define SYS_socket      26
+#define SYS_sendto      27
+#define SYS_recvfrom    28
+#define SYS_select_one  29      /* not compitible select, one file descriptor at the time */
+#define SYS_bind        30
+#define SYS_ioctl       31
+
+/*
+ *  Other...
+ */
+#define SYS_iss_argc      1000  /* returns value of argc */
+#define SYS_iss_argv_size 1001  /* bytes needed for argv & arg strings */
+#define SYS_iss_set_argv  1002  /* saves argv & arg strings at given addr */
+
+/*
+ * SIMCALLs for the ferret memory debugger. All are invoked by
+ * libferret.a ...  ( Xtensa/Target-Libs/ferret )
+ */
+#define SYS_ferret           1010
+#define SYS_malloc           1011
+#define SYS_free             1012
+#define SYS_more_heap        1013
+#define SYS_no_heap          1014
+
+
+/*
+ *  Extra SIMCALLs for GDB:
+ */
+#define SYS_gdb_break         -1        /* invoked by XTOS on user exceptions if EPC points
+                                           to a break.n/break, regardless of cause! */
+#define SYS_xmon_out          -2        /* invoked by XMON: ... */
+#define SYS_xmon_in           -3        /* invoked by XMON: ... */
+#define SYS_xmon_flush        -4        /* invoked by XMON: ... */
+#define SYS_gdb_abort         -5        /* invoked by XTOS in _xtos_panic() */
+#define SYS_gdb_illegal_inst  -6        /* invoked by XTOS for illegal instructions (too deeply) */
+#define SYS_xmon_init         -7        /* invoked by XMON: ... */
+#define SYS_gdb_enter_sktloop -8        /* invoked by XTOS on debug exceptions */
+
+/*
+ *  SIMCALLs for vxWorks xtiss BSP:
+ */
+#define SYS_setup_ppp_pipes   -83
+#define SYS_log_msg           -84
+
+/*
+ *  Test SIMCALLs:
+ */
+#define SYS_test_write_state  -100
+#define SYS_test_read_state   -101
+
+/*
+ * SYS_select_one specifiers
+ */
+#define  XTISS_SELECT_ONE_READ    1
+#define  XTISS_SELECT_ONE_WRITE   2
+#define  XTISS_SELECT_ONE_EXCEPT  3
+
+#endif /* !SIMCALL_INCLUDED */
diff --git a/include/asm-xtensa/xtensa/xt2000-uart.h b/include/asm-xtensa/xtensa/xt2000-uart.h
new file mode 100644
index 000000000000..0154460f0ed8
--- /dev/null
+++ b/include/asm-xtensa/xtensa/xt2000-uart.h
@@ -0,0 +1,155 @@
+#ifndef _uart_h_included_
+#define _uart_h_included_
+
+/*
+ * THIS FILE IS GENERATED -- DO NOT MODIFY BY HAND
+ *
+ * include/asm-xtensa/xtensa/xt2000-uart.h -- NatSemi PC16552D DUART
+ * definitions
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2002 Tensilica Inc.
+ */
+
+
+#include <xtensa/xt2000.h>
+
+
+/* 16550 UART DEVICE REGISTERS
+   The XT2000 board aligns each register to a 32-bit word but the UART device only uses
+   one byte of the word, which is the least-significant byte regardless of the
+   endianness of the core (ie. byte offset 0 for little-endian and 3 for big-endian).
+   So if using word accesses then endianness doesn't matter.
+   The macros provided here do that.
+*/
+struct uart_dev_s {
+  union {
+    unsigned int rxb;   /* DLAB=0: receive buffer, read-only */
+    unsigned int txb;   /* DLAB=0: transmit buffer, write-only */
+    unsigned int dll;   /* DLAB=1: divisor, least-significant byte latch (was write-only?) */
+  } w0;
+  union {
+    unsigned int ier;   /* DLAB=0: interrupt-enable register (was write-only?) */
+    unsigned int dlm;   /* DLAB=1: divisor, most-significant byte latch (was write-only?) */
+  } w1;
+
+  union {
+    unsigned int isr;   /* DLAB=0: interrupt status register, read-only */
+    unsigned int fcr;   /* DLAB=0: FIFO control register, write-only */
+    unsigned int afr;   /* DLAB=1: alternate function register */
+  } w2;
+
+  unsigned int lcr;     /* line control-register, write-only */
+  unsigned int mcr;     /* modem control-regsiter, write-only */
+  unsigned int lsr;     /* line status register, read-only */
+  unsigned int msr;     /* modem status register, read-only */
+  unsigned int scr;     /* scratch regsiter, read/write */
+};
+
+#define _RXB(u) ((u)->w0.rxb)
+#define _TXB(u) ((u)->w0.txb)
+#define _DLL(u) ((u)->w0.dll)
+#define _IER(u) ((u)->w1.ier)
+#define _DLM(u) ((u)->w1.dlm)
+#define _ISR(u) ((u)->w2.isr)
+#define _FCR(u) ((u)->w2.fcr)
+#define _AFR(u) ((u)->w2.afr)
+#define _LCR(u) ((u)->lcr)
+#define _MCR(u) ((u)->mcr)
+#define _LSR(u) ((u)->lsr)
+#define _MSR(u) ((u)->msr)
+#define _SCR(u) ((u)->scr)
+
+typedef volatile struct uart_dev_s uart_dev_t;
+
+/* IER bits */
+#define RCVR_DATA_REG_INTENABLE 0x01
+#define XMIT_HOLD_REG_INTENABLE    0x02
+#define RCVR_STATUS_INTENABLE   0x04
+#define MODEM_STATUS_INTENABLE     0x08
+
+/* FCR bits */
+#define _FIFO_ENABLE      0x01
+#define RCVR_FIFO_RESET  0x02
+#define XMIT_FIFO_RESET  0x04
+#define DMA_MODE_SELECT  0x08
+#define RCVR_TRIGGER_LSB 0x40
+#define RCVR_TRIGGER_MSB 0x80
+
+/* AFR bits */
+#define AFR_CONC_WRITE  0x01
+#define AFR_BAUDOUT_SEL 0x02
+#define AFR_RXRDY_SEL   0x04
+
+/* ISR bits */
+#define INT_STATUS(r)   ((r)&1)
+#define INT_PRIORITY(r) (((r)>>1)&0x7)
+
+/* LCR bits */
+#define WORD_LENGTH(n)  (((n)-5)&0x3)
+#define STOP_BIT_ENABLE 0x04
+#define PARITY_ENABLE   0x08
+#define EVEN_PARITY     0x10
+#define FORCE_PARITY    0x20
+#define XMIT_BREAK      0x40
+#define DLAB_ENABLE     0x80
+
+/* MCR bits */
+#define _DTR 0x01
+#define _RTS 0x02
+#define _OP1 0x04
+#define _OP2 0x08
+#define LOOP_BACK 0x10
+
+/* LSR Bits */
+#define RCVR_DATA_READY 0x01
+#define OVERRUN_ERROR   0x02
+#define PARITY_ERROR    0x04
+#define FRAMING_ERROR   0x08
+#define BREAK_INTERRUPT 0x10
+#define XMIT_HOLD_EMPTY 0x20
+#define XMIT_EMPTY      0x40
+#define FIFO_ERROR      0x80
+#define RCVR_READY(u)   (_LSR(u)&RCVR_DATA_READY)
+#define XMIT_READY(u)   (_LSR(u)&XMIT_HOLD_EMPTY)
+
+/* MSR bits */
+#define _RDR       0x01
+#define DELTA_DSR 0x02
+#define DELTA_RI  0x04
+#define DELTA_CD  0x08
+#define _CTS       0x10
+#define _DSR       0x20
+#define _RI        0x40
+#define _CD        0x80
+
+/* prototypes */
+void uart_init( uart_dev_t *u, int bitrate );
+void uart_out( uart_dev_t *u, char c );
+void uart_puts( uart_dev_t *u, char *s );
+char uart_in( uart_dev_t *u );
+void uart_enable_rcvr_int( uart_dev_t *u );
+void uart_disable_rcvr_int( uart_dev_t *u );
+
+#ifdef DUART16552_1_VADDR
+/*  DUART present.  */
+#define DUART_1_BASE    (*(uart_dev_t*)DUART16552_1_VADDR)
+#define DUART_2_BASE    (*(uart_dev_t*)DUART16552_2_VADDR)
+#define UART1_PUTS(s)   uart_puts( &DUART_1_BASE, s )
+#define UART2_PUTS(s)   uart_puts( &DUART_2_BASE, s )
+#else
+/*  DUART not configured, use dummy placeholders to allow compiles to work.  */
+#define DUART_1_BASE    (*(uart_dev_t*)0)
+#define DUART_2_BASE    (*(uart_dev_t*)0)
+#define UART1_PUTS(s)
+#define UART2_PUTS(s)
+#endif
+
+/*  Compute 16-bit divisor for baudrate generator, with rounding:  */
+#define DUART_DIVISOR(crystal,speed)    (((crystal)/16 + (speed)/2)/(speed))
+
+#endif /*_uart_h_included_*/
+
diff --git a/include/asm-xtensa/xtensa/xt2000.h b/include/asm-xtensa/xtensa/xt2000.h
new file mode 100644
index 000000000000..703a45002f8f
--- /dev/null
+++ b/include/asm-xtensa/xtensa/xt2000.h
@@ -0,0 +1,408 @@
+#ifndef _INC_XT2000_H_
+#define _INC_XT2000_H_
+
+/*
+ * THIS FILE IS GENERATED -- DO NOT MODIFY BY HAND
+ *
+ * include/asm-xtensa/xtensa/xt2000.h - Definitions specific to the
+ * Tensilica XT2000 Emulation Board
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2002 Tensilica Inc.
+ */
+
+
+#include <xtensa/config/core.h>
+#include <xtensa/config/system.h>
+
+
+/*
+ *  Default assignment of XT2000 devices to external interrupts.
+ */
+
+/*  Ethernet interrupt:  */
+#ifdef XCHAL_EXTINT3_NUM
+#define SONIC83934_INTNUM       XCHAL_EXTINT3_NUM
+#define SONIC83934_INTLEVEL     XCHAL_EXTINT3_LEVEL
+#define SONIC83934_INTMASK      XCHAL_EXTINT3_MASK
+#else
+#define SONIC83934_INTMASK      0
+#endif
+
+/*  DUART channel 1 interrupt (P1 - console):  */
+#ifdef XCHAL_EXTINT4_NUM
+#define DUART16552_1_INTNUM     XCHAL_EXTINT4_NUM
+#define DUART16552_1_INTLEVEL   XCHAL_EXTINT4_LEVEL
+#define DUART16552_1_INTMASK    XCHAL_EXTINT4_MASK
+#else
+#define DUART16552_1_INTMASK    0
+#endif
+
+/*  DUART channel 2 interrupt (P2 - 2nd serial port):  */
+#ifdef XCHAL_EXTINT5_NUM
+#define DUART16552_2_INTNUM     XCHAL_EXTINT5_NUM
+#define DUART16552_2_INTLEVEL   XCHAL_EXTINT5_LEVEL
+#define DUART16552_2_INTMASK    XCHAL_EXTINT5_MASK
+#else
+#define DUART16552_2_INTMASK    0
+#endif
+
+/*  FPGA-combined PCI/etc interrupts:  */
+#ifdef XCHAL_EXTINT6_NUM
+#define XT2000_FPGAPCI_INTNUM   XCHAL_EXTINT6_NUM
+#define XT2000_FPGAPCI_INTLEVEL XCHAL_EXTINT6_LEVEL
+#define XT2000_FPGAPCI_INTMASK  XCHAL_EXTINT6_MASK
+#else
+#define XT2000_FPGAPCI_INTMASK  0
+#endif
+
+
+
+/*
+ *  Device addresses.
+ *
+ *  Note:  for endianness-independence, use 32-bit loads and stores for all
+ *  register accesses to Ethernet, DUART and LED devices.  Undefined bits
+ *  may need to be masked out if needed when reading if the actual register
+ *  size is smaller than 32 bits.
+ *
+ *  Note:  XT2000 bus byte lanes are defined in terms of msbyte and lsbyte
+ *  relative to the processor.  So 32-bit registers are accessed consistently
+ *  from both big and little endian processors.  However, this means byte
+ *  sequences are not consistent between big and little endian processors.
+ *  This is fine for RAM, and for ROM if ROM is created for a specific
+ *  processor (and thus has correct byte sequences).  However this may be
+ *  unexpected for Flash, which might contain a file-system that one wants
+ *  to use for multiple processor configurations (eg. the Flash might contain
+ *  the Ethernet card's address, endianness-independent application data, etc).
+ *  That is, byte sequences written in Flash by a core of a given endianness
+ *  will be byte-swapped when seen by a core of the other endianness.
+ *  Someone implementing an endianness-independent Flash file system will
+ *  likely handle this byte-swapping issue in the Flash driver software.
+ */
+
+#define DUART16552_XTAL_FREQ    18432000        /* crystal frequency in Hz */
+#define XTBOARD_FLASH_MAXSIZE   0x4000000       /* 64 MB (max; depends on what is socketed!) */
+#define XTBOARD_EPROM_MAXSIZE   0x0400000       /* 4 MB (max; depends on what is socketed!) */
+#define XTBOARD_EEPROM_MAXSIZE  0x0080000       /* 512 kB (max; depends on what is socketed!) */
+#define XTBOARD_ASRAM_SIZE      0x0100000       /* 1 MB */
+#define XTBOARD_PCI_MEM_SIZE    0x8000000       /* 128 MB (allocated) */
+#define XTBOARD_PCI_IO_SIZE     0x1000000       /* 16 MB (allocated) */
+
+#ifdef XSHAL_IOBLOCK_BYPASS_PADDR
+/*  PCI memory space:  */
+# define XTBOARD_PCI_MEM_PADDR  (XSHAL_IOBLOCK_BYPASS_PADDR+0x0000000)
+/*  Socketed Flash (eg. 2 x 16-bit devices):  */
+# define XTBOARD_FLASH_PADDR    (XSHAL_IOBLOCK_BYPASS_PADDR+0x8000000)
+/*  PCI I/O space:  */
+# define XTBOARD_PCI_IO_PADDR   (XSHAL_IOBLOCK_BYPASS_PADDR+0xC000000)
+/*  V3 PCI interface chip register/config space:  */
+# define XTBOARD_V3PCI_PADDR    (XSHAL_IOBLOCK_BYPASS_PADDR+0xD000000)
+/*  Bus Interface registers:  */
+# define XTBOARD_BUSINT_PADDR   (XSHAL_IOBLOCK_BYPASS_PADDR+0xD010000)
+/*  FPGA registers:  */
+# define XT2000_FPGAREGS_PADDR  (XSHAL_IOBLOCK_BYPASS_PADDR+0xD020000)
+/*  SONIC SN83934 Ethernet controller/transceiver:  */
+# define SONIC83934_PADDR       (XSHAL_IOBLOCK_BYPASS_PADDR+0xD030000)
+/*  8-character bitmapped LED display:  */
+# define XTBOARD_LED_PADDR      (XSHAL_IOBLOCK_BYPASS_PADDR+0xD040000)
+/*  National-Semi PC16552D DUART:  */
+# define DUART16552_1_PADDR     (XSHAL_IOBLOCK_BYPASS_PADDR+0xD050020)  /* channel 1 (P1 - console) */
+# define DUART16552_2_PADDR     (XSHAL_IOBLOCK_BYPASS_PADDR+0xD050000)  /* channel 2 (P2) */
+/*  Asynchronous Static RAM:  */
+# define XTBOARD_ASRAM_PADDR    (XSHAL_IOBLOCK_BYPASS_PADDR+0xD400000)
+/*  8-bit EEPROM:  */
+# define XTBOARD_EEPROM_PADDR   (XSHAL_IOBLOCK_BYPASS_PADDR+0xD600000)
+/*  2 x 16-bit EPROMs:  */
+# define XTBOARD_EPROM_PADDR    (XSHAL_IOBLOCK_BYPASS_PADDR+0xD800000)
+#endif /* XSHAL_IOBLOCK_BYPASS_PADDR */
+
+/*  These devices might be accessed cached:  */
+#ifdef XSHAL_IOBLOCK_CACHED_PADDR
+# define XTBOARD_PCI_MEM_CACHED_PADDR   (XSHAL_IOBLOCK_CACHED_PADDR+0x0000000)
+# define XTBOARD_FLASH_CACHED_PADDR     (XSHAL_IOBLOCK_CACHED_PADDR+0x8000000)
+# define XTBOARD_ASRAM_CACHED_PADDR     (XSHAL_IOBLOCK_CACHED_PADDR+0xD400000)
+# define XTBOARD_EEPROM_CACHED_PADDR    (XSHAL_IOBLOCK_CACHED_PADDR+0xD600000)
+# define XTBOARD_EPROM_CACHED_PADDR     (XSHAL_IOBLOCK_CACHED_PADDR+0xD800000)
+#endif /* XSHAL_IOBLOCK_CACHED_PADDR */
+
+
+/***  Same thing over again, this time with virtual addresses:  ***/
+
+#ifdef XSHAL_IOBLOCK_BYPASS_VADDR
+/*  PCI memory space:  */
+# define XTBOARD_PCI_MEM_VADDR  (XSHAL_IOBLOCK_BYPASS_VADDR+0x0000000)
+/*  Socketed Flash (eg. 2 x 16-bit devices):  */
+# define XTBOARD_FLASH_VADDR    (XSHAL_IOBLOCK_BYPASS_VADDR+0x8000000)
+/*  PCI I/O space:  */
+# define XTBOARD_PCI_IO_VADDR   (XSHAL_IOBLOCK_BYPASS_VADDR+0xC000000)
+/*  V3 PCI interface chip register/config space:  */
+# define XTBOARD_V3PCI_VADDR    (XSHAL_IOBLOCK_BYPASS_VADDR+0xD000000)
+/*  Bus Interface registers:  */
+# define XTBOARD_BUSINT_VADDR   (XSHAL_IOBLOCK_BYPASS_VADDR+0xD010000)
+/*  FPGA registers:  */
+# define XT2000_FPGAREGS_VADDR  (XSHAL_IOBLOCK_BYPASS_VADDR+0xD020000)
+/*  SONIC SN83934 Ethernet controller/transceiver:  */
+# define SONIC83934_VADDR       (XSHAL_IOBLOCK_BYPASS_VADDR+0xD030000)
+/*  8-character bitmapped LED display:  */
+# define XTBOARD_LED_VADDR      (XSHAL_IOBLOCK_BYPASS_VADDR+0xD040000)
+/*  National-Semi PC16552D DUART:  */
+# define DUART16552_1_VADDR     (XSHAL_IOBLOCK_BYPASS_VADDR+0xD050020)  /* channel 1 (P1 - console) */
+# define DUART16552_2_VADDR     (XSHAL_IOBLOCK_BYPASS_VADDR+0xD050000)  /* channel 2 (P2) */
+/*  Asynchronous Static RAM:  */
+# define XTBOARD_ASRAM_VADDR    (XSHAL_IOBLOCK_BYPASS_VADDR+0xD400000)
+/*  8-bit EEPROM:  */
+# define XTBOARD_EEPROM_VADDR   (XSHAL_IOBLOCK_BYPASS_VADDR+0xD600000)
+/*  2 x 16-bit EPROMs:  */
+# define XTBOARD_EPROM_VADDR    (XSHAL_IOBLOCK_BYPASS_VADDR+0xD800000)
+#endif /* XSHAL_IOBLOCK_BYPASS_VADDR */
+
+/*  These devices might be accessed cached:  */
+#ifdef XSHAL_IOBLOCK_CACHED_VADDR
+# define XTBOARD_PCI_MEM_CACHED_VADDR   (XSHAL_IOBLOCK_CACHED_VADDR+0x0000000)
+# define XTBOARD_FLASH_CACHED_VADDR     (XSHAL_IOBLOCK_CACHED_VADDR+0x8000000)
+# define XTBOARD_ASRAM_CACHED_VADDR     (XSHAL_IOBLOCK_CACHED_VADDR+0xD400000)
+# define XTBOARD_EEPROM_CACHED_VADDR    (XSHAL_IOBLOCK_CACHED_VADDR+0xD600000)
+# define XTBOARD_EPROM_CACHED_VADDR     (XSHAL_IOBLOCK_CACHED_VADDR+0xD800000)
+#endif /* XSHAL_IOBLOCK_CACHED_VADDR */
+
+
+/*  System ROM:  */
+#define XTBOARD_ROM_SIZE                XSHAL_ROM_SIZE
+#ifdef XSHAL_ROM_VADDR
+#define XTBOARD_ROM_VADDR               XSHAL_ROM_VADDR
+#endif
+#ifdef XSHAL_ROM_PADDR
+#define XTBOARD_ROM_PADDR               XSHAL_ROM_PADDR
+#endif
+
+/*  System RAM:  */
+#define XTBOARD_RAM_SIZE                XSHAL_RAM_SIZE
+#ifdef XSHAL_RAM_VADDR
+#define XTBOARD_RAM_VADDR               XSHAL_RAM_VADDR
+#endif
+#ifdef XSHAL_RAM_PADDR
+#define XTBOARD_RAM_PADDR               XSHAL_RAM_PADDR
+#endif
+#define XTBOARD_RAM_BYPASS_VADDR        XSHAL_RAM_BYPASS_VADDR
+#define XTBOARD_RAM_BYPASS_PADDR        XSHAL_RAM_BYPASS_PADDR
+
+
+
+/*
+ *  Things that depend on device addresses.
+ */
+
+
+#define XTBOARD_CACHEATTR_WRITEBACK     XSHAL_XT2000_CACHEATTR_WRITEBACK
+#define XTBOARD_CACHEATTR_WRITEALLOC    XSHAL_XT2000_CACHEATTR_WRITEALLOC
+#define XTBOARD_CACHEATTR_WRITETHRU     XSHAL_XT2000_CACHEATTR_WRITETHRU
+#define XTBOARD_CACHEATTR_BYPASS        XSHAL_XT2000_CACHEATTR_BYPASS
+#define XTBOARD_CACHEATTR_DEFAULT       XSHAL_XT2000_CACHEATTR_DEFAULT
+
+#define XTBOARD_BUSINT_PIPE_REGIONS     XSHAL_XT2000_PIPE_REGIONS
+#define XTBOARD_BUSINT_SDRAM_REGIONS    XSHAL_XT2000_SDRAM_REGIONS
+
+
+
+/*
+ *  BusLogic (FPGA) registers.
+ *  All these registers are normally accessed using 32-bit loads/stores.
+ */
+
+/*  Register offsets:  */
+#define XT2000_DATECD_OFS       0x00    /* date code (read-only) */
+#define XT2000_STSREG_OFS       0x04    /* status (read-only) */
+#define XT2000_SYSLED_OFS       0x08    /* system LED */
+#define XT2000_WRPROT_OFS       0x0C    /* write protect */
+#define XT2000_SWRST_OFS        0x10    /* software reset */
+#define XT2000_SYSRST_OFS       0x14    /* system (peripherals) reset */
+#define XT2000_IMASK_OFS        0x18    /* interrupt mask */
+#define XT2000_ISTAT_OFS        0x1C    /* interrupt status */
+#define XT2000_V3CFG_OFS        0x20    /* V3 config (V320 PCI) */
+
+/*  Physical register addresses:  */
+#ifdef XT2000_FPGAREGS_PADDR
+#define XT2000_DATECD_PADDR     (XT2000_FPGAREGS_PADDR+XT2000_DATECD_OFS)
+#define XT2000_STSREG_PADDR     (XT2000_FPGAREGS_PADDR+XT2000_STSREG_OFS)
+#define XT2000_SYSLED_PADDR     (XT2000_FPGAREGS_PADDR+XT2000_SYSLED_OFS)
+#define XT2000_WRPROT_PADDR     (XT2000_FPGAREGS_PADDR+XT2000_WRPROT_OFS)
+#define XT2000_SWRST_PADDR      (XT2000_FPGAREGS_PADDR+XT2000_SWRST_OFS)
+#define XT2000_SYSRST_PADDR     (XT2000_FPGAREGS_PADDR+XT2000_SYSRST_OFS)
+#define XT2000_IMASK_PADDR      (XT2000_FPGAREGS_PADDR+XT2000_IMASK_OFS)
+#define XT2000_ISTAT_PADDR      (XT2000_FPGAREGS_PADDR+XT2000_ISTAT_OFS)
+#define XT2000_V3CFG_PADDR      (XT2000_FPGAREGS_PADDR+XT2000_V3CFG_OFS)
+#endif
+
+/*  Virtual register addresses:  */
+#ifdef XT2000_FPGAREGS_VADDR
+#define XT2000_DATECD_VADDR     (XT2000_FPGAREGS_VADDR+XT2000_DATECD_OFS)
+#define XT2000_STSREG_VADDR     (XT2000_FPGAREGS_VADDR+XT2000_STSREG_OFS)
+#define XT2000_SYSLED_VADDR     (XT2000_FPGAREGS_VADDR+XT2000_SYSLED_OFS)
+#define XT2000_WRPROT_VADDR     (XT2000_FPGAREGS_VADDR+XT2000_WRPROT_OFS)
+#define XT2000_SWRST_VADDR      (XT2000_FPGAREGS_VADDR+XT2000_SWRST_OFS)
+#define XT2000_SYSRST_VADDR     (XT2000_FPGAREGS_VADDR+XT2000_SYSRST_OFS)
+#define XT2000_IMASK_VADDR      (XT2000_FPGAREGS_VADDR+XT2000_IMASK_OFS)
+#define XT2000_ISTAT_VADDR      (XT2000_FPGAREGS_VADDR+XT2000_ISTAT_OFS)
+#define XT2000_V3CFG_VADDR      (XT2000_FPGAREGS_VADDR+XT2000_V3CFG_OFS)
+/*  Register access (for C code):  */
+#define XT2000_DATECD_REG       (*(volatile unsigned*) XT2000_DATECD_VADDR)
+#define XT2000_STSREG_REG       (*(volatile unsigned*) XT2000_STSREG_VADDR)
+#define XT2000_SYSLED_REG       (*(volatile unsigned*) XT2000_SYSLED_VADDR)
+#define XT2000_WRPROT_REG       (*(volatile unsigned*) XT2000_WRPROT_VADDR)
+#define XT2000_SWRST_REG        (*(volatile unsigned*) XT2000_SWRST_VADDR)
+#define XT2000_SYSRST_REG       (*(volatile unsigned*) XT2000_SYSRST_VADDR)
+#define XT2000_IMASK_REG        (*(volatile unsigned*) XT2000_IMASK_VADDR)
+#define XT2000_ISTAT_REG        (*(volatile unsigned*) XT2000_ISTAT_VADDR)
+#define XT2000_V3CFG_REG        (*(volatile unsigned*) XT2000_V3CFG_VADDR)
+#endif
+
+/*  DATECD (date code) bit fields:  */
+
+/*  BCD-coded month (01..12):  */
+#define XT2000_DATECD_MONTH_SHIFT       24
+#define XT2000_DATECD_MONTH_BITS        8
+#define XT2000_DATECD_MONTH_MASK        0xFF000000
+/*  BCD-coded day (01..31):  */
+#define XT2000_DATECD_DAY_SHIFT         16
+#define XT2000_DATECD_DAY_BITS          8
+#define XT2000_DATECD_DAY_MASK          0x00FF0000
+/*  BCD-coded year (2001..9999):  */
+#define XT2000_DATECD_YEAR_SHIFT        0
+#define XT2000_DATECD_YEAR_BITS         16
+#define XT2000_DATECD_YEAR_MASK         0x0000FFFF
+
+/*  STSREG (status) bit fields:  */
+
+/*  Switch SW3 setting bit fields (0=off/up, 1=on/down):  */
+#define XT2000_STSREG_SW3_SHIFT         0
+#define XT2000_STSREG_SW3_BITS          4
+#define XT2000_STSREG_SW3_MASK          0x0000000F
+/*  Boot-select bits of switch SW3:  */
+#define XT2000_STSREG_BOOTSEL_SHIFT     0
+#define XT2000_STSREG_BOOTSEL_BITS      2
+#define XT2000_STSREG_BOOTSEL_MASK      0x00000003
+/*  Boot-select values:  */
+#define XT2000_STSREG_BOOTSEL_FLASH     0
+#define XT2000_STSREG_BOOTSEL_EPROM16   1
+#define XT2000_STSREG_BOOTSEL_PROM8     2
+#define XT2000_STSREG_BOOTSEL_ASRAM     3
+/*  User-defined bits of switch SW3:  */
+#define XT2000_STSREG_SW3_2_SHIFT       2
+#define XT2000_STSREG_SW3_2_MASK        0x00000004
+#define XT2000_STSREG_SW3_3_SHIFT       3
+#define XT2000_STSREG_SW3_3_MASK        0x00000008
+
+/*  SYSLED (system LED) bit fields:  */
+
+/*  LED control bit (0=off, 1=on):  */
+#define XT2000_SYSLED_LEDON_SHIFT       0
+#define XT2000_SYSLED_LEDON_MASK        0x00000001
+
+/*  WRPROT (write protect) bit fields (0=writable, 1=write-protected [default]):  */
+
+/*  Flash write protect:  */
+#define XT2000_WRPROT_FLWP_SHIFT        0
+#define XT2000_WRPROT_FLWP_MASK         0x00000001
+/*  Reserved but present write protect bits:  */
+#define XT2000_WRPROT_WRP_SHIFT         1
+#define XT2000_WRPROT_WRP_BITS          7
+#define XT2000_WRPROT_WRP_MASK          0x000000FE
+
+/*  SWRST (software reset; allows s/w to generate power-on equivalent reset):  */
+
+/*  Software reset bits:  */
+#define XT2000_SWRST_SWR_SHIFT          0
+#define XT2000_SWRST_SWR_BITS           16
+#define XT2000_SWRST_SWR_MASK           0x0000FFFF
+/*  Software reset value -- writing this value resets the board:  */
+#define XT2000_SWRST_RESETVALUE         0x0000DEAD
+
+/*  SYSRST (system reset; controls reset of individual peripherals):  */
+
+/*  All-device reset:  */
+#define XT2000_SYSRST_ALL_SHIFT         0
+#define XT2000_SYSRST_ALL_BITS          4
+#define XT2000_SYSRST_ALL_MASK          0x0000000F
+/*  HDSP-2534 LED display reset (1=reset, 0=nothing):  */
+#define XT2000_SYSRST_LED_SHIFT         0
+#define XT2000_SYSRST_LED_MASK          0x00000001
+/*  Sonic DP83934 Ethernet controller reset (1=reset, 0=nothing):  */
+#define XT2000_SYSRST_SONIC_SHIFT       1
+#define XT2000_SYSRST_SONIC_MASK        0x00000002
+/*  DP16552 DUART reset (1=reset, 0=nothing):  */
+#define XT2000_SYSRST_DUART_SHIFT       2
+#define XT2000_SYSRST_DUART_MASK        0x00000004
+/*  V3 V320 PCI bridge controller reset (1=reset, 0=nothing):  */
+#define XT2000_SYSRST_V3_SHIFT          3
+#define XT2000_SYSRST_V3_MASK           0x00000008
+
+/*  IMASK (interrupt mask; 0=disable, 1=enable):  */
+/*  ISTAT (interrupt status; 0=inactive, 1=pending):  */
+
+/*  PCI INTP interrupt:  */
+#define XT2000_INTMUX_PCI_INTP_SHIFT    2
+#define XT2000_INTMUX_PCI_INTP_MASK     0x00000004
+/*  PCI INTS interrupt:  */
+#define XT2000_INTMUX_PCI_INTS_SHIFT    3
+#define XT2000_INTMUX_PCI_INTS_MASK     0x00000008
+/*  PCI INTD interrupt:  */
+#define XT2000_INTMUX_PCI_INTD_SHIFT    4
+#define XT2000_INTMUX_PCI_INTD_MASK     0x00000010
+/*  V320 PCI controller interrupt:  */
+#define XT2000_INTMUX_V3_SHIFT          5
+#define XT2000_INTMUX_V3_MASK           0x00000020
+/*  PCI ENUM interrupt:  */
+#define XT2000_INTMUX_PCI_ENUM_SHIFT    6
+#define XT2000_INTMUX_PCI_ENUM_MASK     0x00000040
+/*  PCI DEG interrupt:  */
+#define XT2000_INTMUX_PCI_DEG_SHIFT     7
+#define XT2000_INTMUX_PCI_DEG_MASK      0x00000080
+
+/*  V3CFG (V3 config, V320 PCI controller):  */
+
+/*  V3 address control (0=pass-thru, 1=V3 address bits 31:28 set to 4'b0001 [default]):  */
+#define XT2000_V3CFG_V3ADC_SHIFT        0
+#define XT2000_V3CFG_V3ADC_MASK         0x00000001
+
+/* I2C Devices */
+
+#define XT2000_I2C_RTC_ID               0x68
+#define XT2000_I2C_NVRAM0_ID            0x56    /* 1st 256 byte block */
+#define XT2000_I2C_NVRAM1_ID            0x57    /* 2nd 256 byte block */
+
+/*  NVRAM Board Info structure:  */
+
+#define XT2000_NVRAM_SIZE               512
+
+#define XT2000_NVRAM_BINFO_START        0x100
+#define XT2000_NVRAM_BINFO_SIZE         0x20
+#define XT2000_NVRAM_BINFO_VERSION      0x10    /* version 1.0 */
+#if 0
+#define XT2000_NVRAM_BINFO_VERSION_OFFSET       0x00
+#define XT2000_NVRAM_BINFO_VERSION_SIZE                 0x1
+#define XT2000_NVRAM_BINFO_ETH_ADDR_OFFSET      0x02
+#define XT2000_NVRAM_BINFO_ETH_ADDR_SIZE                0x6
+#define XT2000_NVRAM_BINFO_SN_OFFSET            0x10
+#define XT2000_NVRAM_BINFO_SN_SIZE                      0xE
+#define XT2000_NVRAM_BINFO_CRC_OFFSET           0x1E
+#define XT2000_NVRAM_BINFO_CRC_SIZE                     0x2
+#endif /*0*/
+
+#if !defined(__ASSEMBLY__) && !defined(_NOCLANGUAGE)
+typedef struct xt2000_nvram_binfo {
+    unsigned char       version;
+    unsigned char       reserved1;
+    unsigned char       eth_addr[6];
+    unsigned char       reserved8[8];
+    unsigned char       serialno[14];
+    unsigned char       crc[2];         /* 16-bit CRC */
+} xt2000_nvram_binfo;
+#endif /*!__ASSEMBLY__ && !_NOCLANGUAGE*/
+
+
+#endif /*_INC_XT2000_H_*/
+
diff --git a/include/asm-xtensa/xtensa/xtboard.h b/include/asm-xtensa/xtensa/xtboard.h
new file mode 100644
index 000000000000..22469c175307
--- /dev/null
+++ b/include/asm-xtensa/xtensa/xtboard.h
@@ -0,0 +1,120 @@
+#ifndef _xtboard_h_included_
+#define _xtboard_h_included_
+
+/*
+ * THIS FILE IS GENERATED -- DO NOT MODIFY BY HAND
+ *
+ *  xtboard.h  --  Routines for getting useful information from the board.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2002 Tensilica Inc.
+ */
+
+
+#include <xtensa/xt2000.h>
+
+#define XTBOARD_RTC_ERROR       -1
+#define XTBOARD_RTC_STOPPED     -2
+
+
+/*  xt2000-i2cdev.c:  */
+typedef void XtboardDelayFunc( unsigned );
+extern XtboardDelayFunc* xtboard_set_nsdelay_func( XtboardDelayFunc *delay_fn );
+extern int xtboard_i2c_read (unsigned id, unsigned char *buf, unsigned addr, unsigned size);
+extern int xtboard_i2c_write(unsigned id, unsigned char *buf, unsigned addr, unsigned size);
+extern int xtboard_i2c_wait_nvram_ack(unsigned id, unsigned swtimer);
+
+/*  xtboard.c:  */
+extern int xtboard_nvram_read (unsigned addr, unsigned len, unsigned char *buf);
+extern int xtboard_nvram_write(unsigned addr, unsigned len, unsigned char *buf);
+extern int xtboard_nvram_binfo_read (xt2000_nvram_binfo *buf);
+extern int xtboard_nvram_binfo_write(xt2000_nvram_binfo *buf);
+extern int xtboard_nvram_binfo_valid(xt2000_nvram_binfo *buf);
+extern int xtboard_ethermac_get(unsigned char *buf);
+extern int xtboard_ethermac_set(unsigned char *buf);
+
+/*+*----------------------------------------------------------------------------
+/ Function: xtboard_get_rtc_time
+/
+/ Description:  Get time stored in real-time clock.
+/
+/ Returns: time in seconds stored in real-time clock.
+/-**----------------------------------------------------------------------------*/
+
+extern unsigned xtboard_get_rtc_time(void);
+
+/*+*----------------------------------------------------------------------------
+/ Function: xtboard_set_rtc_time
+/
+/ Description:  Set time stored in real-time clock.
+/
+/ Parameters:   time -- time in seconds to store to real-time clock
+/
+/ Returns: 0 on success, xtboard_i2c_write() error code otherwise.
+/-**----------------------------------------------------------------------------*/
+
+extern int xtboard_set_rtc_time(unsigned time);
+
+
+/*  xtfreq.c:  */
+/*+*----------------------------------------------------------------------------
+/ Function: xtboard_measure_sys_clk
+/
+/ Description:  Get frequency of system clock.
+/
+/ Parameters:   none
+/
+/ Returns: frequency of system clock.
+/-**----------------------------------------------------------------------------*/
+
+extern unsigned xtboard_measure_sys_clk(void);
+
+
+#if 0   /* old stuff from xtboard.c: */
+
+/*+*----------------------------------------------------------------------------
+/ Function: xtboard_nvram valid
+/
+/ Description:  Determines if data in NVRAM is valid.
+/
+/ Parameters:   delay -- 10us delay function
+/
+/ Returns: 1 if NVRAM is valid, 0 otherwise
+/-**----------------------------------------------------------------------------*/
+
+extern unsigned xtboard_nvram_valid(void (*delay)( void ));
+
+/*+*----------------------------------------------------------------------------
+/ Function: xtboard_get_nvram_contents
+/
+/ Description:  Returns contents of NVRAM.
+/
+/ Parameters:   buf -- buffer to NVRAM contents.
+/               delay -- 10us delay function
+/
+/ Returns: 1 if NVRAM is valid, 0 otherwise
+/-**----------------------------------------------------------------------------*/
+
+extern unsigned xtboard_get_nvram_contents(unsigned char *buf, void (*delay)( void ));
+
+/*+*----------------------------------------------------------------------------
+/ Function: xtboard_get_ether_addr
+/
+/ Description:  Returns ethernet address of board.
+/
+/ Parameters:   buf -- buffer to store ethernet address
+/               delay -- 10us delay function
+/
+/ Returns: nothing.
+/-**----------------------------------------------------------------------------*/
+
+extern void xtboard_get_ether_addr(unsigned char *buf, void (*delay)( void ));
+
+#endif /*0*/
+
+
+#endif /*_xtboard_h_included_*/
+
diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h
index 7e736e201c46..c1e82c514443 100644
--- a/include/linux/binfmts.h
+++ b/include/linux/binfmts.h
@@ -69,6 +69,11 @@ extern void remove_arg_zero(struct linux_binprm *);
 extern int search_binary_handler(struct linux_binprm *,struct pt_regs *);
 extern int flush_old_exec(struct linux_binprm * bprm);
 
+extern int suid_dumpable;
+#define SUID_DUMP_DISABLE       0       /* No setuid dumping */
+#define SUID_DUMP_USER          1       /* Dump as user of process */
+#define SUID_DUMP_ROOT          2       /* Dump as root */
+
 /* Stack area protections */
 #define EXSTACK_DEFAULT   0     /* Whatever the arch defaults to */
 #define EXSTACK_DISABLE_X 1     /* Disable executable stacks */
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 4a99b76c5a33..60272141ff19 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -285,16 +285,12 @@ enum blk_queue_state {
         Queue_up,
 };
 
-#define BLK_TAGS_PER_LONG       (sizeof(unsigned long) * 8)
-#define BLK_TAGS_MASK           (BLK_TAGS_PER_LONG - 1)
-
 struct blk_queue_tag {
         struct request **tag_index;     /* map of busy tags */
         unsigned long *tag_map;         /* bit map of free/busy tags */
         struct list_head busy_list;     /* fifo list of busy tags */
         int busy;                       /* current depth */
         int max_depth;                  /* what we will send to device */
-        int real_max_depth;             /* what the array can hold */
         atomic_t refcnt;                /* map can be shared */
 };
 
@@ -396,6 +392,7 @@ struct request_queue
          */
         unsigned int            sg_timeout;
         unsigned int            sg_reserved_size;
+        int                     node;
 
         struct list_head        drain_list;
 
@@ -615,6 +612,8 @@ static inline void blkdev_dequeue_request(struct request *req)
 /*
  * Access functions for manipulating queue properties
  */
+extern request_queue_t *blk_init_queue_node(request_fn_proc *rfn,
+                                        spinlock_t *lock, int node_id);
 extern request_queue_t *blk_init_queue(request_fn_proc *, spinlock_t *);
 extern void blk_cleanup_queue(request_queue_t *);
 extern void blk_queue_make_request(request_queue_t *, make_request_fn *);
@@ -646,7 +645,8 @@ extern void blk_wait_queue_drained(request_queue_t *, int);
 extern void blk_finish_queue_drain(request_queue_t *);
 
 int blk_get_queue(request_queue_t *);
-request_queue_t *blk_alloc_queue(int);
+request_queue_t *blk_alloc_queue(int gfp_mask);
+request_queue_t *blk_alloc_queue_node(int,int);
 #define blk_put_queue(q) blk_cleanup_queue((q))
 
 /*
diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
index 0dd8ca1a3d5a..500f451ce0c0 100644
--- a/include/linux/bootmem.h
+++ b/include/linux/bootmem.h
@@ -67,6 +67,15 @@ extern void * __init __alloc_bootmem_node (pg_data_t *pgdat, unsigned long size,
         __alloc_bootmem_node((pgdat), (x), PAGE_SIZE, 0)
 #endif /* !CONFIG_HAVE_ARCH_BOOTMEM_NODE */
 
+#ifdef CONFIG_HAVE_ARCH_ALLOC_REMAP
+extern void *alloc_remap(int nid, unsigned long size);
+#else
+static inline void *alloc_remap(int nid, unsigned long size)
+{
+        return NULL;
+}
+#endif
+
 extern unsigned long __initdata nr_kernel_pages;
 extern unsigned long __initdata nr_all_pages;
 
diff --git a/include/linux/dqblk_v1.h b/include/linux/dqblk_v1.h
index 42fbf4797156..57f1250d5a52 100644
--- a/include/linux/dqblk_v1.h
+++ b/include/linux/dqblk_v1.h
@@ -11,6 +11,12 @@
 /* Root squash turned on */
 #define V1_DQF_RSQUASH 1
 
+/* Numbers of blocks needed for updates */
+#define V1_INIT_ALLOC 1
+#define V1_INIT_REWRITE 1
+#define V1_DEL_ALLOC 0
+#define V1_DEL_REWRITE 2
+
 /* Special information about quotafile */
 struct v1_mem_dqinfo {
 };
diff --git a/include/linux/dqblk_v2.h b/include/linux/dqblk_v2.h
index 4a6c5f6867bb..4f853322cb7f 100644
--- a/include/linux/dqblk_v2.h
+++ b/include/linux/dqblk_v2.h
@@ -10,6 +10,12 @@
 /* id numbers of quota format */
 #define QFMT_VFS_V0 2
 
+/* Numbers of blocks needed for updates */
+#define V2_INIT_ALLOC 4
+#define V2_INIT_REWRITE 2
+#define V2_DEL_ALLOC 0
+#define V2_DEL_REWRITE 6
+
 /* Inmemory copy of version specific information */
 struct v2_mem_dqinfo {
         unsigned int dqi_blocks;
diff --git a/include/linux/ext2_fs.h b/include/linux/ext2_fs.h
index fab43527e597..a657130ba03a 100644
--- a/include/linux/ext2_fs.h
+++ b/include/linux/ext2_fs.h
@@ -300,18 +300,19 @@ struct ext2_inode {
 /*
  * Mount flags
  */
-#define EXT2_MOUNT_CHECK                0x0001  /* Do mount-time checks */
-#define EXT2_MOUNT_OLDALLOC             0x0002  /* Don't use the new Orlov allocator */
-#define EXT2_MOUNT_GRPID                0x0004  /* Create files with directory's group */
-#define EXT2_MOUNT_DEBUG                0x0008  /* Some debugging messages */
-#define EXT2_MOUNT_ERRORS_CONT          0x0010  /* Continue on errors */
-#define EXT2_MOUNT_ERRORS_RO            0x0020  /* Remount fs ro on errors */
-#define EXT2_MOUNT_ERRORS_PANIC         0x0040  /* Panic on errors */
-#define EXT2_MOUNT_MINIX_DF             0x0080  /* Mimics the Minix statfs */
-#define EXT2_MOUNT_NOBH                 0x0100  /* No buffer_heads */
-#define EXT2_MOUNT_NO_UID32             0x0200  /* Disable 32-bit UIDs */
-#define EXT2_MOUNT_XATTR_USER           0x4000  /* Extended user attributes */
-#define EXT2_MOUNT_POSIX_ACL            0x8000  /* POSIX Access Control Lists */
+#define EXT2_MOUNT_CHECK                0x000001  /* Do mount-time checks */
+#define EXT2_MOUNT_OLDALLOC             0x000002  /* Don't use the new Orlov allocator */
+#define EXT2_MOUNT_GRPID                0x000004  /* Create files with directory's group */
+#define EXT2_MOUNT_DEBUG                0x000008  /* Some debugging messages */
+#define EXT2_MOUNT_ERRORS_CONT          0x000010  /* Continue on errors */
+#define EXT2_MOUNT_ERRORS_RO            0x000020  /* Remount fs ro on errors */
+#define EXT2_MOUNT_ERRORS_PANIC         0x000040  /* Panic on errors */
+#define EXT2_MOUNT_MINIX_DF             0x000080  /* Mimics the Minix statfs */
+#define EXT2_MOUNT_NOBH                 0x000100  /* No buffer_heads */
+#define EXT2_MOUNT_NO_UID32             0x000200  /* Disable 32-bit UIDs */
+#define EXT2_MOUNT_XATTR_USER           0x004000  /* Extended user attributes */
+#define EXT2_MOUNT_POSIX_ACL            0x008000  /* POSIX Access Control Lists */
+#define EXT2_MOUNT_XIP                  0x010000  /* Execute in place */
 
 #define clear_opt(o, opt)               o &= ~EXT2_MOUNT_##opt
 #define set_opt(o, opt)                 o |= EXT2_MOUNT_##opt
diff --git a/include/linux/ext3_fs.h b/include/linux/ext3_fs.h
index 74ad31781e3e..4b6e1ab216a5 100644
--- a/include/linux/ext3_fs.h
+++ b/include/linux/ext3_fs.h
@@ -358,6 +358,7 @@ struct ext3_inode {
 #define EXT3_MOUNT_RESERVATION          0x10000 /* Preallocation */
 #define EXT3_MOUNT_BARRIER              0x20000 /* Use block barriers */
 #define EXT3_MOUNT_NOBH                 0x40000 /* No bufferheads */
+#define EXT3_MOUNT_QUOTA                0x80000 /* Some quota option set */
 
 /* Compatibility, for having both ext2_fs.h and ext3_fs.h included at once */
 #ifndef _LINUX_EXT2_FS_H
diff --git a/include/linux/ext3_jbd.h b/include/linux/ext3_jbd.h
index e8292af9033b..c8307c02dd07 100644
--- a/include/linux/ext3_jbd.h
+++ b/include/linux/ext3_jbd.h
@@ -42,15 +42,15 @@
  * superblock only gets updated once, of course, so don't bother
  * counting that again for the quota updates. */
 
-#define EXT3_DATA_TRANS_BLOCKS          (EXT3_SINGLEDATA_TRANS_BLOCKS + \
+#define EXT3_DATA_TRANS_BLOCKS(sb)      (EXT3_SINGLEDATA_TRANS_BLOCKS + \
                                          EXT3_XATTR_TRANS_BLOCKS - 2 + \
-                                         2*EXT3_QUOTA_TRANS_BLOCKS)
+                                         2*EXT3_QUOTA_TRANS_BLOCKS(sb))
 
 /* Delete operations potentially hit one directory's namespace plus an
  * entire inode, plus arbitrary amounts of bitmap/indirection data.  Be
  * generous.  We can grow the delete transaction later if necessary. */
 
-#define EXT3_DELETE_TRANS_BLOCKS        (2 * EXT3_DATA_TRANS_BLOCKS + 64)
+#define EXT3_DELETE_TRANS_BLOCKS(sb)    (2 * EXT3_DATA_TRANS_BLOCKS(sb) + 64)
 
 /* Define an arbitrary limit for the amount of data we will anticipate
  * writing to any given transaction.  For unbounded transactions such as
@@ -74,14 +74,17 @@
 #ifdef CONFIG_QUOTA
 /* Amount of blocks needed for quota update - we know that the structure was
  * allocated so we need to update only inode+data */
-#define EXT3_QUOTA_TRANS_BLOCKS 2
+#define EXT3_QUOTA_TRANS_BLOCKS(sb) (test_opt(sb, QUOTA) ? 2 : 0)
 /* Amount of blocks needed for quota insert/delete - we do some block writes
  * but inode, sb and group updates are done only once */
-#define EXT3_QUOTA_INIT_BLOCKS (DQUOT_MAX_WRITES*\
-                                (EXT3_SINGLEDATA_TRANS_BLOCKS-3)+3)
+#define EXT3_QUOTA_INIT_BLOCKS(sb) (test_opt(sb, QUOTA) ? (DQUOT_INIT_ALLOC*\
+                (EXT3_SINGLEDATA_TRANS_BLOCKS-3)+3+DQUOT_INIT_REWRITE) : 0)
+#define EXT3_QUOTA_DEL_BLOCKS(sb) (test_opt(sb, QUOTA) ? (DQUOT_DEL_ALLOC*\
+                (EXT3_SINGLEDATA_TRANS_BLOCKS-3)+3+DQUOT_DEL_REWRITE) : 0)
 #else
-#define EXT3_QUOTA_TRANS_BLOCKS 0
-#define EXT3_QUOTA_INIT_BLOCKS 0
+#define EXT3_QUOTA_TRANS_BLOCKS(sb) 0
+#define EXT3_QUOTA_INIT_BLOCKS(sb) 0
+#define EXT3_QUOTA_DEL_BLOCKS(sb) 0
 #endif
 
 int
diff --git a/include/linux/fcntl.h b/include/linux/fcntl.h
index 704fb76b6334..8a7c82151de9 100644
--- a/include/linux/fcntl.h
+++ b/include/linux/fcntl.h
@@ -25,6 +25,10 @@
 
 #ifdef __KERNEL__
 
+#ifndef force_o_largefile
+#define force_o_largefile() (BITS_PER_LONG != 32)
+#endif
+
 #if BITS_PER_LONG == 32
 #define IS_GETLK32(cmd)         ((cmd) == F_GETLK)
 #define IS_SETLK32(cmd)         ((cmd) == F_SETLK)
diff --git a/include/linux/fs.h b/include/linux/fs.h
index e5a8db00df29..3ae8e37bdfc8 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -220,6 +220,7 @@ extern int dir_notify_enable;
 
 struct iovec;
 struct nameidata;
+struct kiocb;
 struct pipe_inode_info;
 struct poll_table_struct;
 struct kstatfs;
@@ -240,7 +241,7 @@ typedef int (get_block_t)(struct inode *inode, sector_t iblock,
 typedef int (get_blocks_t)(struct inode *inode, sector_t iblock,
                         unsigned long max_blocks,
                         struct buffer_head *bh_result, int create);
-typedef void (dio_iodone_t)(struct inode *inode, loff_t offset,
+typedef void (dio_iodone_t)(struct kiocb *iocb, loff_t offset,
                         ssize_t bytes, void *private);
 
 /*
@@ -302,7 +303,6 @@ struct iattr {
 struct page;
 struct address_space;
 struct writeback_control;
-struct kiocb;
 
 struct address_space_operations {
         int (*writepage)(struct page *page, struct writeback_control *wbc);
@@ -330,6 +330,8 @@ struct address_space_operations {
         int (*releasepage) (struct page *, int);
         ssize_t (*direct_IO)(int, struct kiocb *, const struct iovec *iov,
                         loff_t offset, unsigned long nr_segs);
+        struct page* (*get_xip_page)(struct address_space *, sector_t,
+                        int);
 };
 
 struct backing_dev_info;
@@ -581,7 +583,6 @@ struct file {
         atomic_t                f_count;
         unsigned int            f_flags;
         mode_t                  f_mode;
-        int                     f_error;
         loff_t                  f_pos;
         struct fown_struct      f_owner;
         unsigned int            f_uid, f_gid;
@@ -884,7 +885,9 @@ struct block_device_operations {
         int (*open) (struct inode *, struct file *);
         int (*release) (struct inode *, struct file *);
         int (*ioctl) (struct inode *, struct file *, unsigned, unsigned long);
+        long (*unlocked_ioctl) (struct file *, unsigned, unsigned long);
         long (*compat_ioctl) (struct file *, unsigned, unsigned long);
+        int (*direct_access) (struct block_device *, sector_t, unsigned long *);
         int (*media_changed) (struct gendisk *);
         int (*revalidate_disk) (struct gendisk *);
         struct module *owner;
@@ -1025,6 +1028,7 @@ struct super_operations {
 #define I_FREEING               16
 #define I_CLEAR                 32
 #define I_NEW                   64
+#define I_WILL_FREE             128
 
 #define I_DIRTY (I_DIRTY_SYNC | I_DIRTY_DATASYNC | I_DIRTY_PAGES)
 
@@ -1495,6 +1499,23 @@ extern loff_t remote_llseek(struct file *file, loff_t offset, int origin);
 extern int generic_file_open(struct inode * inode, struct file * filp);
 extern int nonseekable_open(struct inode * inode, struct file * filp);
 
+#ifdef CONFIG_FS_XIP
+extern ssize_t xip_file_read(struct file *filp, char __user *buf, size_t len,
+                             loff_t *ppos);
+extern ssize_t xip_file_sendfile(struct file *in_file, loff_t *ppos,
+                                 size_t count, read_actor_t actor,
+                                 void *target);
+extern int xip_file_mmap(struct file * file, struct vm_area_struct * vma);
+extern ssize_t xip_file_write(struct file *filp, const char __user *buf,
+                              size_t len, loff_t *ppos);
+extern int xip_truncate_page(struct address_space *mapping, loff_t from);
+#else
+static inline int xip_truncate_page(struct address_space *mapping, loff_t from)
+{
+        return 0;
+}
+#endif
+
 static inline void do_generic_file_read(struct file * filp, loff_t *ppos,
                                         read_descriptor_t * desc,
                                         read_actor_t actor)
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index 47dedaf971d6..01796c41c951 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -224,7 +224,7 @@ static inline void free_disk_stats(struct gendisk *disk)
 extern void disk_round_stats(struct gendisk *disk);
 
 /* drivers/block/genhd.c */
-extern int get_blkdev_list(char *);
+extern int get_blkdev_list(char *, int);
 extern void add_disk(struct gendisk *disk);
 extern void del_gendisk(struct gendisk *gp);
 extern void unlink_gendisk(struct gendisk *gp);
@@ -403,6 +403,7 @@ extern int rescan_partitions(struct gendisk *disk, struct block_device *bdev);
 extern void add_partition(struct gendisk *, int, sector_t, sector_t);
 extern void delete_partition(struct gendisk *, int);
 
+extern struct gendisk *alloc_disk_node(int minors, int node_id);
 extern struct gendisk *alloc_disk(int minors);
 extern struct kobject *get_disk(struct gendisk *disk);
 extern void put_disk(struct gendisk *disk);
diff --git a/include/linux/i2o-dev.h b/include/linux/i2o-dev.h
index ef7f644dd873..36fd18cdad28 100644
--- a/include/linux/i2o-dev.h
+++ b/include/linux/i2o-dev.h
@@ -24,6 +24,13 @@
 #define MAX_I2O_CONTROLLERS     32
 
 //#include <linux/ioctl.h>
+#ifndef __KERNEL__
+
+typedef unsigned char u8;
+typedef unsigned short u16;
+typedef unsigned int u32;
+
+#endif                          /* __KERNEL__ */
 
 /*
  * I2O Control IOCTLs and structures
@@ -113,6 +120,10 @@ struct i2o_evt_get {
         int lost;
 };
 
+typedef struct i2o_sg_io_hdr {
+        unsigned int flags;     /* see I2O_DPT_SG_IO_FLAGS */
+} i2o_sg_io_hdr_t;
+
 /**************************************************************************
  * HRT related constants and structures
  **************************************************************************/
@@ -126,14 +137,6 @@ struct i2o_evt_get {
 #define I2O_BUS_CARDBUS 7
 #define I2O_BUS_UNKNOWN 0x80
 
-#ifndef __KERNEL__
-
-typedef unsigned char u8;
-typedef unsigned short u16;
-typedef unsigned int u32;
-
-#endif                          /* __KERNEL__ */
-
 typedef struct _i2o_pci_bus {
         u8 PciFunctionNumber;
         u8 PciDeviceNumber;
@@ -333,7 +336,7 @@ typedef struct _i2o_status_block {
 #define I2O_CLASS_ATE_PERIPHERAL                0x061
 #define I2O_CLASS_FLOPPY_CONTROLLER             0x070
 #define I2O_CLASS_FLOPPY_DEVICE                 0x071
-#define I2O_CLASS_BUS_ADAPTER_PORT              0x080
+#define I2O_CLASS_BUS_ADAPTER                   0x080
 #define I2O_CLASS_PEER_TRANSPORT_AGENT          0x090
 #define I2O_CLASS_PEER_TRANSPORT                0x091
 #define I2O_CLASS_END                           0xfff
@@ -399,4 +402,26 @@ typedef struct _i2o_status_block {
 #define ADAPTER_STATE_FAILED                    0x10
 #define ADAPTER_STATE_FAULTED                   0x11
 
+/*
+ *      Software module types
+ */
+#define I2O_SOFTWARE_MODULE_IRTOS               0x11
+#define I2O_SOFTWARE_MODULE_IOP_PRIVATE         0x22
+#define I2O_SOFTWARE_MODULE_IOP_CONFIG          0x23
+
+/*
+ *      Vendors
+ */
+#define I2O_VENDOR_DPT                          0x001b
+
+/*
+ * DPT / Adaptec specific values for i2o_sg_io_hdr flags.
+ */
+#define I2O_DPT_SG_FLAG_INTERPRET               0x00010000
+#define I2O_DPT_SG_FLAG_PHYSICAL                0x00020000
+
+#define I2O_DPT_FLASH_FRAG_SIZE                 0x10000
+#define I2O_DPT_FLASH_READ                      0x0101
+#define I2O_DPT_FLASH_WRITE                     0x0102
+
 #endif                          /* _I2O_DEV_H */
diff --git a/include/linux/i2o.h b/include/linux/i2o.h
index ea9a3ad4b67f..bdc286ec947c 100644
--- a/include/linux/i2o.h
+++ b/include/linux/i2o.h
@@ -119,12 +119,21 @@ struct i2o_driver {
 };
 
 /*
- *      Contains all information which are necessary for DMA operations
+ *      Contains DMA mapped address information
  */
 struct i2o_dma {
         void *virt;
         dma_addr_t phys;
-        u32 len;
+        size_t len;
+};
+
+/*
+ *      Contains IO mapped address information
+ */
+struct i2o_io {
+        void __iomem *virt;
+        unsigned long phys;
+        unsigned long len;
 };
 
 /*
@@ -147,28 +156,25 @@ struct i2o_controller {
 
         struct pci_dev *pdev;   /* PCI device */
 
-        unsigned int short_req:1;       /* use small block sizes */
+        unsigned int promise:1; /* Promise controller */
+        unsigned int adaptec:1; /* DPT / Adaptec controller */
+        unsigned int raptor:1;  /* split bar */
         unsigned int no_quiesce:1;      /* dont quiesce before reset */
-        unsigned int raptor:1;          /* split bar */
-        unsigned int promise:1;         /* Promise controller */
-
-#ifdef CONFIG_MTRR
-        int mtrr_reg0;
-        int mtrr_reg1;
-#endif
+        unsigned int short_req:1;       /* use small block sizes */
+        unsigned int limit_sectors:1;   /* limit number of sectors / request */
+        unsigned int pae_support:1;     /* controller has 64-bit SGL support */
 
         struct list_head devices;       /* list of I2O devices */
-
-        struct notifier_block *event_notifer;   /* Events */
-        atomic_t users;
         struct list_head list;  /* Controller list */
-        void __iomem *post_port;        /* Inbout port address */
-        void __iomem *reply_port;       /* Outbound port address */
-        void __iomem *irq_mask;         /* Interrupt register address */
+
+        void __iomem *in_port;  /* Inbout port address */
+        void __iomem *out_port; /* Outbound port address */
+        void __iomem *irq_status;       /* Interrupt status register address */
+        void __iomem *irq_mask; /* Interrupt mask register address */
 
         /* Dynamic LCT related data */
 
-        struct i2o_dma status;  /* status of IOP */
+        struct i2o_dma status;  /* IOP status block */
 
         struct i2o_dma hrt;     /* HW Resource Table */
         i2o_lct *lct;           /* Logical Config Table */
@@ -176,21 +182,19 @@ struct i2o_controller {
         struct semaphore lct_lock;      /* Lock for LCT updates */
         struct i2o_dma status_block;    /* IOP status block */
 
-        struct i2o_dma base;    /* controller messaging unit */
-        struct i2o_dma in_queue;        /* inbound message queue Host->IOP */
+        struct i2o_io base;     /* controller messaging unit */
+        struct i2o_io in_queue; /* inbound message queue Host->IOP */
         struct i2o_dma out_queue;       /* outbound message queue IOP->Host */
 
-        unsigned int battery:1;         /* Has a battery backup */
+        unsigned int battery:1; /* Has a battery backup */
         unsigned int io_alloc:1;        /* An I/O resource was allocated */
         unsigned int mem_alloc:1;       /* A memory resource was allocated */
 
         struct resource io_resource;    /* I/O resource allocated to the IOP */
         struct resource mem_resource;   /* Mem resource allocated to the IOP */
 
-        struct proc_dir_entry *proc_entry;      /* /proc dir */
-
-        struct list_head bus_list;      /* list of busses on IOP */
         struct device device;
+        struct class_device classdev;   /* I2O controller class */
         struct i2o_device *exec;        /* Executive */
 #if BITS_PER_LONG == 64
         spinlock_t context_list_lock;   /* lock for context_list */
@@ -241,9 +245,10 @@ struct i2o_sys_tbl {
 extern struct list_head i2o_controllers;
 
 /* Message functions */
-static inline u32 i2o_msg_get(struct i2o_controller *, struct i2o_message __iomem **);
-extern u32 i2o_msg_get_wait(struct i2o_controller *, struct i2o_message __iomem **,
-                            int);
+static inline u32 i2o_msg_get(struct i2o_controller *,
+                              struct i2o_message __iomem **);
+extern u32 i2o_msg_get_wait(struct i2o_controller *,
+                            struct i2o_message __iomem **, int);
 static inline void i2o_msg_post(struct i2o_controller *, u32);
 static inline int i2o_msg_post_wait(struct i2o_controller *, u32,
                                     unsigned long);
@@ -252,15 +257,6 @@ extern int i2o_msg_post_wait_mem(struct i2o_controller *, u32, unsigned long,
 extern void i2o_msg_nop(struct i2o_controller *, u32);
 static inline void i2o_flush_reply(struct i2o_controller *, u32);
 
-/* DMA handling functions */
-static inline int i2o_dma_alloc(struct device *, struct i2o_dma *, size_t,
-                                unsigned int);
-static inline void i2o_dma_free(struct device *, struct i2o_dma *);
-int i2o_dma_realloc(struct device *, struct i2o_dma *, size_t, unsigned int);
-
-static inline int i2o_dma_map(struct device *, struct i2o_dma *);
-static inline void i2o_dma_unmap(struct device *, struct i2o_dma *);
-
 /* IOP functions */
 extern int i2o_status_get(struct i2o_controller *);
 
@@ -285,6 +281,16 @@ static inline u32 i2o_ptr_high(void *ptr)
 {
         return (u32) ((u64) ptr >> 32);
 };
+
+static inline u32 i2o_dma_low(dma_addr_t dma_addr)
+{
+        return (u32) (u64) dma_addr;
+};
+
+static inline u32 i2o_dma_high(dma_addr_t dma_addr)
+{
+        return (u32) ((u64) dma_addr >> 32);
+};
 #else
 static inline u32 i2o_cntxt_list_add(struct i2o_controller *c, void *ptr)
 {
@@ -315,8 +321,246 @@ static inline u32 i2o_ptr_high(void *ptr)
 {
         return 0;
 };
+
+static inline u32 i2o_dma_low(dma_addr_t dma_addr)
+{
+        return (u32) dma_addr;
+};
+
+static inline u32 i2o_dma_high(dma_addr_t dma_addr)
+{
+        return 0;
+};
 #endif
 
+/**
+ *      i2o_sg_tablesize - Calculate the maximum number of elements in a SGL
+ *      @c: I2O controller for which the calculation should be done
+ *      @body_size: maximum body size used for message in 32-bit words.
+ *
+ *      Return the maximum number of SG elements in a SG list.
+ */
+static inline u16 i2o_sg_tablesize(struct i2o_controller *c, u16 body_size)
+{
+        i2o_status_block *sb = c->status_block.virt;
+        u16 sg_count =
+            (sb->inbound_frame_size - sizeof(struct i2o_message) / 4) -
+            body_size;
+
+        if (c->pae_support) {
+                /*
+                 * for 64-bit a SG attribute element must be added and each
+                 * SG element needs 12 bytes instead of 8.
+                 */
+                sg_count -= 2;
+                sg_count /= 3;
+        } else
+                sg_count /= 2;
+
+        if (c->short_req && (sg_count > 8))
+                sg_count = 8;
+
+        return sg_count;
+};
+
+/**
+ *      i2o_dma_map_single - Map pointer to controller and fill in I2O message.
+ *      @c: I2O controller
+ *      @ptr: pointer to the data which should be mapped
+ *      @size: size of data in bytes
+ *      @direction: DMA_TO_DEVICE / DMA_FROM_DEVICE
+ *      @sg_ptr: pointer to the SG list inside the I2O message
+ *
+ *      This function does all necessary DMA handling and also writes the I2O
+ *      SGL elements into the I2O message. For details on DMA handling see also
+ *      dma_map_single(). The pointer sg_ptr will only be set to the end of the
+ *      SG list if the allocation was successful.
+ *
+ *      Returns DMA address which must be checked for failures using
+ *      dma_mapping_error().
+ */
+static inline dma_addr_t i2o_dma_map_single(struct i2o_controller *c, void *ptr,
+                                            size_t size,
+                                            enum dma_data_direction direction,
+                                            u32 __iomem ** sg_ptr)
+{
+        u32 sg_flags;
+        u32 __iomem *mptr = *sg_ptr;
+        dma_addr_t dma_addr;
+
+        switch (direction) {
+        case DMA_TO_DEVICE:
+                sg_flags = 0xd4000000;
+                break;
+        case DMA_FROM_DEVICE:
+                sg_flags = 0xd0000000;
+                break;
+        default:
+                return 0;
+        }
+
+        dma_addr = dma_map_single(&c->pdev->dev, ptr, size, direction);
+        if (!dma_mapping_error(dma_addr)) {
+#ifdef CONFIG_I2O_EXT_ADAPTEC_DMA64
+                if ((sizeof(dma_addr_t) > 4) && c->pae_support) {
+                        writel(0x7C020002, mptr++);
+                        writel(PAGE_SIZE, mptr++);
+                }
+#endif
+
+                writel(sg_flags | size, mptr++);
+                writel(i2o_dma_low(dma_addr), mptr++);
+#ifdef CONFIG_I2O_EXT_ADAPTEC_DMA64
+                if ((sizeof(dma_addr_t) > 4) && c->pae_support)
+                        writel(i2o_dma_high(dma_addr), mptr++);
+#endif
+                *sg_ptr = mptr;
+        }
+        return dma_addr;
+};
+
+/**
+ *      i2o_dma_map_sg - Map a SG List to controller and fill in I2O message.
+ *      @c: I2O controller
+ *      @sg: SG list to be mapped
+ *      @sg_count: number of elements in the SG list
+ *      @direction: DMA_TO_DEVICE / DMA_FROM_DEVICE
+ *      @sg_ptr: pointer to the SG list inside the I2O message
+ *
+ *      This function does all necessary DMA handling and also writes the I2O
+ *      SGL elements into the I2O message. For details on DMA handling see also
+ *      dma_map_sg(). The pointer sg_ptr will only be set to the end of the SG
+ *      list if the allocation was successful.
+ *
+ *      Returns 0 on failure or 1 on success.
+ */
+static inline int i2o_dma_map_sg(struct i2o_controller *c,
+                                 struct scatterlist *sg, int sg_count,
+                                 enum dma_data_direction direction,
+                                 u32 __iomem ** sg_ptr)
+{
+        u32 sg_flags;
+        u32 __iomem *mptr = *sg_ptr;
+
+        switch (direction) {
+        case DMA_TO_DEVICE:
+                sg_flags = 0x14000000;
+                break;
+        case DMA_FROM_DEVICE:
+                sg_flags = 0x10000000;
+                break;
+        default:
+                return 0;
+        }
+
+        sg_count = dma_map_sg(&c->pdev->dev, sg, sg_count, direction);
+        if (!sg_count)
+                return 0;
+
+#ifdef CONFIG_I2O_EXT_ADAPTEC_DMA64
+        if ((sizeof(dma_addr_t) > 4) && c->pae_support) {
+                writel(0x7C020002, mptr++);
+                writel(PAGE_SIZE, mptr++);
+        }
+#endif
+
+        while (sg_count-- > 0) {
+                if (!sg_count)
+                        sg_flags |= 0xC0000000;
+                writel(sg_flags | sg_dma_len(sg), mptr++);
+                writel(i2o_dma_low(sg_dma_address(sg)), mptr++);
+#ifdef CONFIG_I2O_EXT_ADAPTEC_DMA64
+                if ((sizeof(dma_addr_t) > 4) && c->pae_support)
+                        writel(i2o_dma_high(sg_dma_address(sg)), mptr++);
+#endif
+                sg++;
+        }
+        *sg_ptr = mptr;
+
+        return 1;
+};
+
+/**
+ *      i2o_dma_alloc - Allocate DMA memory
+ *      @dev: struct device pointer to the PCI device of the I2O controller
+ *      @addr: i2o_dma struct which should get the DMA buffer
+ *      @len: length of the new DMA memory
+ *      @gfp_mask: GFP mask
+ *
+ *      Allocate a coherent DMA memory and write the pointers into addr.
+ *
+ *      Returns 0 on success or -ENOMEM on failure.
+ */
+static inline int i2o_dma_alloc(struct device *dev, struct i2o_dma *addr,
+                                size_t len, unsigned int gfp_mask)
+{
+        struct pci_dev *pdev = to_pci_dev(dev);
+        int dma_64 = 0;
+
+        if ((sizeof(dma_addr_t) > 4) && (pdev->dma_mask == DMA_64BIT_MASK)) {
+                dma_64 = 1;
+                if (pci_set_dma_mask(pdev, DMA_32BIT_MASK))
+                        return -ENOMEM;
+        }
+
+        addr->virt = dma_alloc_coherent(dev, len, &addr->phys, gfp_mask);
+
+        if ((sizeof(dma_addr_t) > 4) && dma_64)
+                if (pci_set_dma_mask(pdev, DMA_64BIT_MASK))
+                        printk(KERN_WARNING "i2o: unable to set 64-bit DMA");
+
+        if (!addr->virt)
+                return -ENOMEM;
+
+        memset(addr->virt, 0, len);
+        addr->len = len;
+
+        return 0;
+};
+
+/**
+ *      i2o_dma_free - Free DMA memory
+ *      @dev: struct device pointer to the PCI device of the I2O controller
+ *      @addr: i2o_dma struct which contains the DMA buffer
+ *
+ *      Free a coherent DMA memory and set virtual address of addr to NULL.
+ */
+static inline void i2o_dma_free(struct device *dev, struct i2o_dma *addr)
+{
+        if (addr->virt) {
+                if (addr->phys)
+                        dma_free_coherent(dev, addr->len, addr->virt,
+                                          addr->phys);
+                else
+                        kfree(addr->virt);
+                addr->virt = NULL;
+        }
+};
+
+/**
+ *      i2o_dma_realloc - Realloc DMA memory
+ *      @dev: struct device pointer to the PCI device of the I2O controller
+ *      @addr: pointer to a i2o_dma struct DMA buffer
+ *      @len: new length of memory
+ *      @gfp_mask: GFP mask
+ *
+ *      If there was something allocated in the addr, free it first. If len > 0
+ *      than try to allocate it and write the addresses back to the addr
+ *      structure. If len == 0 set the virtual address to NULL.
+ *
+ *      Returns the 0 on success or negative error code on failure.
+ */
+static inline int i2o_dma_realloc(struct device *dev, struct i2o_dma *addr,
+                                  size_t len, unsigned int gfp_mask)
+{
+        i2o_dma_free(dev, addr);
+
+        if (len)
+                return i2o_dma_alloc(dev, addr, len, gfp_mask);
+
+        return 0;
+};
+
 /* I2O driver (OSM) functions */
 extern int i2o_driver_register(struct i2o_driver *);
 extern void i2o_driver_unregister(struct i2o_driver *);
@@ -385,49 +629,11 @@ extern int i2o_device_claim_release(struct i2o_device *);
 /* Exec OSM functions */
 extern int i2o_exec_lct_get(struct i2o_controller *);
 
-/* device to i2o_device and driver to i2o_driver convertion functions */
+/* device / driver / kobject conversion functions */
 #define to_i2o_driver(drv) container_of(drv,struct i2o_driver, driver)
 #define to_i2o_device(dev) container_of(dev, struct i2o_device, device)
-
-/*
- *      Messenger inlines
- */
-static inline u32 I2O_POST_READ32(struct i2o_controller *c)
-{
-        rmb();
-        return readl(c->post_port);
-};
-
-static inline void I2O_POST_WRITE32(struct i2o_controller *c, u32 val)
-{
-        wmb();
-        writel(val, c->post_port);
-};
-
-static inline u32 I2O_REPLY_READ32(struct i2o_controller *c)
-{
-        rmb();
-        return readl(c->reply_port);
-};
-
-static inline void I2O_REPLY_WRITE32(struct i2o_controller *c, u32 val)
-{
-        wmb();
-        writel(val, c->reply_port);
-};
-
-static inline u32 I2O_IRQ_READ32(struct i2o_controller *c)
-{
-        rmb();
-        return readl(c->irq_mask);
-};
-
-static inline void I2O_IRQ_WRITE32(struct i2o_controller *c, u32 val)
-{
-        wmb();
-        writel(val, c->irq_mask);
-        wmb();
-};
+#define to_i2o_controller(dev) container_of(dev, struct i2o_controller, device)
+#define kobj_to_i2o_device(kobj) to_i2o_device(container_of(kobj, struct device, kobj))
 
 /**
  *      i2o_msg_get - obtain an I2O message from the IOP
@@ -443,11 +649,11 @@ static inline void I2O_IRQ_WRITE32(struct i2o_controller *c, u32 val)
  *      available returns I2O_QUEUE_EMPTY and msg is leaved untouched.
  */
 static inline u32 i2o_msg_get(struct i2o_controller *c,
-                              struct i2o_message __iomem **msg)
+                              struct i2o_message __iomem ** msg)
 {
-        u32 m;
+        u32 m = readl(c->in_port);
 
-        if ((m = I2O_POST_READ32(c)) != I2O_QUEUE_EMPTY)
+        if (m != I2O_QUEUE_EMPTY)
                 *msg = c->in_queue.virt + m;
 
         return m;
@@ -462,7 +668,7 @@ static inline u32 i2o_msg_get(struct i2o_controller *c,
  */
 static inline void i2o_msg_post(struct i2o_controller *c, u32 m)
 {
-        I2O_POST_WRITE32(c, m);
+        writel(m, c->in_port);
 };
 
 /**
@@ -491,12 +697,10 @@ static inline int i2o_msg_post_wait(struct i2o_controller *c, u32 m,
  *      The I2O controller must be informed that the reply message is not needed
  *      anymore. If you forget to flush the reply, the message frame can't be
  *      used by the controller anymore and is therefore lost.
- *
- *      FIXME: is there a timeout after which the controller reuse the message?
  */
 static inline void i2o_flush_reply(struct i2o_controller *c, u32 m)
 {
-        I2O_REPLY_WRITE32(c, m);
+        writel(m, c->out_port);
 };
 
 /**
@@ -530,97 +734,13 @@ static inline struct i2o_message *i2o_msg_out_to_virt(struct i2o_controller *c,
  *      work for receive side messages as they are kmalloc objects
  *      in a different pool.
  */
-static inline struct i2o_message __iomem *i2o_msg_in_to_virt(struct i2o_controller *c,
-                                                     u32 m)
+static inline struct i2o_message __iomem *i2o_msg_in_to_virt(struct
+                                                             i2o_controller *c,
+                                                             u32 m)
 {
         return c->in_queue.virt + m;
 };
 
-/**
- *      i2o_dma_alloc - Allocate DMA memory
- *      @dev: struct device pointer to the PCI device of the I2O controller
- *      @addr: i2o_dma struct which should get the DMA buffer
- *      @len: length of the new DMA memory
- *      @gfp_mask: GFP mask
- *
- *      Allocate a coherent DMA memory and write the pointers into addr.
- *
- *      Returns 0 on success or -ENOMEM on failure.
- */
-static inline int i2o_dma_alloc(struct device *dev, struct i2o_dma *addr,
-                                size_t len, unsigned int gfp_mask)
-{
-        addr->virt = dma_alloc_coherent(dev, len, &addr->phys, gfp_mask);
-        if (!addr->virt)
-                return -ENOMEM;
-
-        memset(addr->virt, 0, len);
-        addr->len = len;
-
-        return 0;
-};
-
-/**
- *      i2o_dma_free - Free DMA memory
- *      @dev: struct device pointer to the PCI device of the I2O controller
- *      @addr: i2o_dma struct which contains the DMA buffer
- *
- *      Free a coherent DMA memory and set virtual address of addr to NULL.
- */
-static inline void i2o_dma_free(struct device *dev, struct i2o_dma *addr)
-{
-        if (addr->virt) {
-                if (addr->phys)
-                        dma_free_coherent(dev, addr->len, addr->virt,
-                                          addr->phys);
-                else
-                        kfree(addr->virt);
-                addr->virt = NULL;
-        }
-};
-
-/**
- *      i2o_dma_map - Map the memory to DMA
- *      @dev: struct device pointer to the PCI device of the I2O controller
- *      @addr: i2o_dma struct which should be mapped
- *
- *      Map the memory in addr->virt to coherent DMA memory and write the
- *      physical address into addr->phys.
- *
- *      Returns 0 on success or -ENOMEM on failure.
- */
-static inline int i2o_dma_map(struct device *dev, struct i2o_dma *addr)
-{
-        if (!addr->virt)
-                return -EFAULT;
-
-        if (!addr->phys)
-                addr->phys = dma_map_single(dev, addr->virt, addr->len,
-                                            DMA_BIDIRECTIONAL);
-        if (!addr->phys)
-                return -ENOMEM;
-
-        return 0;
-};
-
-/**
- *      i2o_dma_unmap - Unmap the DMA memory
- *      @dev: struct device pointer to the PCI device of the I2O controller
- *      @addr: i2o_dma struct which should be unmapped
- *
- *      Unmap the memory in addr->virt from DMA memory.
- */
-static inline void i2o_dma_unmap(struct device *dev, struct i2o_dma *addr)
-{
-        if (!addr->virt)
-                return;
-
-        if (addr->phys) {
-                dma_unmap_single(dev, addr->phys, addr->len, DMA_BIDIRECTIONAL);
-                addr->phys = 0;
-        }
-};
-
 /*
  *      Endian handling wrapped into the macro - keeps the core code
  *      cleaner.
@@ -773,6 +893,14 @@ extern void i2o_debug_state(struct i2o_controller *c);
 #define I2O_CMD_SCSI_BUSRESET           0x27
 
 /*
+ * Bus Adapter Class
+ */
+#define I2O_CMD_BUS_ADAPTER_RESET       0x85
+#define I2O_CMD_BUS_RESET               0x87
+#define I2O_CMD_BUS_SCAN                0x89
+#define I2O_CMD_BUS_QUIESCE             0x8b
+
+/*
  * Random Block Storage Class
  */
 #define I2O_CMD_BLOCK_READ              0x30
@@ -784,7 +912,7 @@ extern void i2o_debug_state(struct i2o_controller *c);
 #define I2O_CMD_BLOCK_MEJECT            0x43
 #define I2O_CMD_BLOCK_POWER             0x70
 
-#define I2O_PRIVATE_MSG                 0xFF
+#define I2O_CMD_PRIVATE                 0xFF
 
 /* Command status values  */
 
@@ -922,7 +1050,7 @@ extern void i2o_debug_state(struct i2o_controller *c);
 #define I2OVER15        0x0001
 #define I2OVER20        0x0002
 
-/* Default is 1.5, FIXME: Need support for both 1.5 and 2.0 */
+/* Default is 1.5 */
 #define I2OVERSION      I2OVER15
 
 #define SGL_OFFSET_0    I2OVERSION
@@ -933,9 +1061,9 @@ extern void i2o_debug_state(struct i2o_controller *c);
 #define SGL_OFFSET_8    (0x0080 | I2OVERSION)
 #define SGL_OFFSET_9    (0x0090 | I2OVERSION)
 #define SGL_OFFSET_10   (0x00A0 | I2OVERSION)
-
-#define TRL_OFFSET_5    (0x0050 | I2OVERSION)
-#define TRL_OFFSET_6    (0x0060 | I2OVERSION)
+#define SGL_OFFSET_11   (0x00B0 | I2OVERSION)
+#define SGL_OFFSET_12   (0x00C0 | I2OVERSION)
+#define SGL_OFFSET(x)   (((x)<<4) | I2OVERSION)
 
 /* Transaction Reply Lists (TRL) Control Word structure */
 #define TRL_SINGLE_FIXED_LENGTH         0x00
@@ -962,17 +1090,13 @@ extern void i2o_debug_state(struct i2o_controller *c);
 #define ELEVEN_WORD_MSG_SIZE    0x000B0000
 #define I2O_MESSAGE_SIZE(x)     ((x)<<16)
 
-/* Special TID Assignments */
-
+/* special TID assignments */
 #define ADAPTER_TID             0
 #define HOST_TID                1
 
-#define MSG_FRAME_SIZE          128     /* i2o_scsi assumes >= 32 */
-#define REPLY_FRAME_SIZE        17
-#define SG_TABLESIZE            30
-#define NMBR_MSG_FRAMES         128
-
-#define MSG_POOL_SIZE           (MSG_FRAME_SIZE*NMBR_MSG_FRAMES*sizeof(u32))
+/* outbound queue defines */
+#define I2O_MAX_OUTBOUND_MSG_FRAMES     128
+#define I2O_OUTBOUND_MSG_FRAME_SIZE     128     /* in 32-bit words */
 
 #define I2O_POST_WAIT_OK        0
 #define I2O_POST_WAIT_TIMEOUT   -ETIMEDOUT
@@ -993,11 +1117,10 @@ extern void i2o_debug_state(struct i2o_controller *c);
 #define I2O_HRT_GET_TRIES               3
 #define I2O_LCT_GET_TRIES               3
 
-/* request queue sizes */
+/* defines for max_sectors and max_phys_segments */
 #define I2O_MAX_SECTORS                 1024
-#define I2O_MAX_SEGMENTS                128
-
-#define I2O_REQ_MEMPOOL_SIZE            32
+#define I2O_MAX_SECTORS_LIMITED         256
+#define I2O_MAX_PHYS_SEGMENTS           MAX_PHYS_SEGMENTS
 
 #endif                          /* __KERNEL__ */
 #endif                          /* _I2O_H */
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 336d6e509f59..92129078d4f3 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -917,7 +917,7 @@ typedef struct hwif_s {
         unsigned dma;
 
         void (*led_act)(void *data, int rw);
-} ide_hwif_t;
+} ____cacheline_maxaligned_in_smp ide_hwif_t;
 
 /*
  *  internal ide interrupt handler type
diff --git a/include/linux/ipmi.h b/include/linux/ipmi.h
index 2ec265e1045f..596ca6130159 100644
--- a/include/linux/ipmi.h
+++ b/include/linux/ipmi.h
@@ -209,6 +209,11 @@ struct kernel_ipmi_msg
 #include <linux/list.h>
 #include <linux/module.h>
 
+#ifdef CONFIG_PROC_FS
+#include <linux/proc_fs.h>
+extern struct proc_dir_entry *proc_ipmi_root;
+#endif /* CONFIG_PROC_FS */
+
 /* Opaque type for a IPMI message user.  One of these is needed to
    send and receive messages. */
 typedef struct ipmi_user *ipmi_user_t;
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 7fc1022be9ee..12277799c007 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -88,7 +88,6 @@ extern fastcall int handle_IRQ_event(unsigned int irq, struct pt_regs *regs,
                                        struct irqaction *action);
 extern fastcall unsigned int __do_IRQ(unsigned int irq, struct pt_regs *regs);
 extern void note_interrupt(unsigned int irq, irq_desc_t *desc, int action_ret);
-extern void report_bad_irq(unsigned int irq, irq_desc_t *desc, int action_ret);
 extern int can_request_irq(unsigned int irq, unsigned long irqflags);
 
 extern void init_irq_proc(void);
diff --git a/include/linux/key-ui.h b/include/linux/key-ui.h
index 60cc7b762e78..cc326174a808 100644
--- a/include/linux/key-ui.h
+++ b/include/linux/key-ui.h
@@ -1,4 +1,4 @@
-/* key-ui.h: key userspace interface stuff for use by keyfs
+/* key-ui.h: key userspace interface stuff
  *
  * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
  * Written by David Howells (dhowells@redhat.com)
@@ -31,8 +31,10 @@ extern spinlock_t key_serial_lock;
  * subscribed
  */
 struct keyring_list {
-        unsigned        maxkeys;        /* max keys this list can hold */
-        unsigned        nkeys;          /* number of keys currently held */
+        struct rcu_head rcu;            /* RCU deletion hook */
+        unsigned short  maxkeys;        /* max keys this list can hold */
+        unsigned short  nkeys;          /* number of keys currently held */
+        unsigned short  delkey;         /* key to be unlinked by RCU */
         struct key      *keys[0];
 };
 
@@ -82,8 +84,45 @@ static inline int key_any_permission(const struct key *key, key_perm_t perm)
         return kperm != 0;
 }
 
+static inline int key_task_groups_search(struct task_struct *tsk, gid_t gid)
+{
+        int ret;
+
+        task_lock(tsk);
+        ret = groups_search(tsk->group_info, gid);
+        task_unlock(tsk);
+        return ret;
+}
+
+static inline int key_task_permission(const struct key *key,
+                                      struct task_struct *context,
+                                      key_perm_t perm)
+{
+        key_perm_t kperm;
+
+        if (key->uid == context->fsuid) {
+                kperm = key->perm >> 16;
+        }
+        else if (key->gid != -1 &&
+                 key->perm & KEY_GRP_ALL && (
+                         key->gid == context->fsgid ||
+                         key_task_groups_search(context, key->gid)
+                         )
+                 ) {
+                kperm = key->perm >> 8;
+        }
+        else {
+                kperm = key->perm;
+        }
+
+        kperm = kperm & perm & KEY_ALL;
+
+        return kperm == perm;
+
+}
 
-extern struct key *lookup_user_key(key_serial_t id, int create, int part,
+extern struct key *lookup_user_key(struct task_struct *context,
+                                   key_serial_t id, int create, int partial,
                                    key_perm_t perm);
 
 extern long join_session_keyring(const char *name);
diff --git a/include/linux/key.h b/include/linux/key.h
index 6aa46d0e812f..970bbd916cf4 100644
--- a/include/linux/key.h
+++ b/include/linux/key.h
@@ -18,7 +18,7 @@
 #include <linux/types.h>
 #include <linux/list.h>
 #include <linux/rbtree.h>
-#include <linux/spinlock.h>
+#include <linux/rcupdate.h>
 #include <asm/atomic.h>
 
 #ifdef __KERNEL__
@@ -78,7 +78,6 @@ struct key {
         key_serial_t            serial;         /* key serial number */
         struct rb_node          serial_node;
         struct key_type         *type;          /* type of key */
-        rwlock_t                lock;           /* examination vs change lock */
         struct rw_semaphore     sem;            /* change vs change sem */
         struct key_user         *user;          /* owner of this key */
         time_t                  expiry;         /* time at which key expires (or 0) */
@@ -86,14 +85,10 @@ struct key {
         gid_t                   gid;
         key_perm_t              perm;           /* access permissions */
         unsigned short          quotalen;       /* length added to quota */
-        unsigned short          datalen;        /* payload data length */
-        unsigned short          flags;          /* status flags (change with lock writelocked) */
-#define KEY_FLAG_INSTANTIATED   0x00000001      /* set if key has been instantiated */
-#define KEY_FLAG_DEAD           0x00000002      /* set if key type has been deleted */
-#define KEY_FLAG_REVOKED        0x00000004      /* set if key had been revoked */
-#define KEY_FLAG_IN_QUOTA       0x00000008      /* set if key consumes quota */
-#define KEY_FLAG_USER_CONSTRUCT 0x00000010      /* set if key is being constructed in userspace */
-#define KEY_FLAG_NEGATIVE       0x00000020      /* set if key is negative */
+        unsigned short          datalen;        /* payload data length
+                                                 * - may not match RCU dereferenced payload
+                                                 * - payload should contain own length
+                                                 */
 
 #ifdef KEY_DEBUGGING
         unsigned                magic;
@@ -101,6 +96,14 @@ struct key {
 #define KEY_DEBUG_MAGIC_X       0xf8e9dacbu
 #endif
 
+        unsigned long           flags;          /* status flags (change with bitops) */
+#define KEY_FLAG_INSTANTIATED   0       /* set if key has been instantiated */
+#define KEY_FLAG_DEAD           1       /* set if key type has been deleted */
+#define KEY_FLAG_REVOKED        2       /* set if key had been revoked */
+#define KEY_FLAG_IN_QUOTA       3       /* set if key consumes quota */
+#define KEY_FLAG_USER_CONSTRUCT 4       /* set if key is being constructed in userspace */
+#define KEY_FLAG_NEGATIVE       5       /* set if key is negative */
+
         /* the description string
          * - this is used to match a key against search criteria
          * - this should be a printable string
@@ -196,10 +199,12 @@ extern int key_payload_reserve(struct key *key, size_t datalen);
 extern int key_instantiate_and_link(struct key *key,
                                     const void *data,
                                     size_t datalen,
-                                    struct key *keyring);
+                                    struct key *keyring,
+                                    struct key *instkey);
 extern int key_negate_and_link(struct key *key,
                                unsigned timeout,
-                               struct key *keyring);
+                               struct key *keyring,
+                               struct key *instkey);
 extern void key_revoke(struct key *key);
 extern void key_put(struct key *key);
 
@@ -242,14 +247,13 @@ extern struct key *keyring_search(struct key *keyring,
                                   struct key_type *type,
                                   const char *description);
 
-extern struct key *search_process_keyrings(struct key_type *type,
-                                           const char *description);
-
 extern int keyring_add_key(struct key *keyring,
                            struct key *key);
 
 extern struct key *key_lookup(key_serial_t id);
 
+extern void keyring_replace_payload(struct key *key, void *replacement);
+
 #define key_serial(key) ((key) ? (key)->serial : 0)
 
 /*
@@ -268,14 +272,22 @@ extern void key_fsuid_changed(struct task_struct *tsk);
 extern void key_fsgid_changed(struct task_struct *tsk);
 extern void key_init(void);
 
+#define __install_session_keyring(tsk, keyring)                 \
+({                                                              \
+        struct key *old_session = tsk->signal->session_keyring; \
+        tsk->signal->session_keyring = keyring;                 \
+        old_session;                                            \
+})
+
 #else /* CONFIG_KEYS */
 
 #define key_validate(k)                 0
 #define key_serial(k)                   0
-#define key_get(k)                      NULL
+#define key_get(k)                      ({ NULL; })
 #define key_put(k)                      do { } while(0)
 #define alloc_uid_keyring(u)            0
 #define switch_uid_keyring(u)           do { } while(0)
+#define __install_session_keyring(t, k) ({ NULL; })
 #define copy_keys(f,t)                  0
 #define copy_thread_group_keys(t)       0
 #define exit_keys(t)                    do { } while(0)
diff --git a/include/linux/keyctl.h b/include/linux/keyctl.h
index 381dedc370a3..8d7c59a29e09 100644
--- a/include/linux/keyctl.h
+++ b/include/linux/keyctl.h
@@ -20,6 +20,16 @@
 #define KEY_SPEC_USER_SESSION_KEYRING   -5      /* - key ID for UID-session keyring */
 #define KEY_SPEC_GROUP_KEYRING          -6      /* - key ID for GID-specific keyring */
 
+/* request-key default keyrings */
+#define KEY_REQKEY_DEFL_NO_CHANGE               -1
+#define KEY_REQKEY_DEFL_DEFAULT                 0
+#define KEY_REQKEY_DEFL_THREAD_KEYRING          1
+#define KEY_REQKEY_DEFL_PROCESS_KEYRING         2
+#define KEY_REQKEY_DEFL_SESSION_KEYRING         3
+#define KEY_REQKEY_DEFL_USER_KEYRING            4
+#define KEY_REQKEY_DEFL_USER_SESSION_KEYRING    5
+#define KEY_REQKEY_DEFL_GROUP_KEYRING           6
+
 /* keyctl commands */
 #define KEYCTL_GET_KEYRING_ID           0       /* ask for a keyring's ID */
 #define KEYCTL_JOIN_SESSION_KEYRING     1       /* join or start named session keyring */
@@ -35,5 +45,6 @@
 #define KEYCTL_READ                     11      /* read a key or keyring's contents */
 #define KEYCTL_INSTANTIATE              12      /* instantiate a partially constructed key */
 #define KEYCTL_NEGATE                   13      /* negate a partially constructed key */
+#define KEYCTL_SET_REQKEY_KEYRING       14      /* set default request-key keyring */
 
 #endif /*  _LINUX_KEYCTL_H */
diff --git a/include/linux/kmod.h b/include/linux/kmod.h
index 95d0e4b0814d..e4a231549407 100644
--- a/include/linux/kmod.h
+++ b/include/linux/kmod.h
@@ -19,6 +19,7 @@
  *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#include <linux/stddef.h>
 #include <linux/config.h>
 #include <linux/errno.h>
 #include <linux/compiler.h>
@@ -34,7 +35,17 @@ static inline int request_module(const char * name, ...) { return -ENOSYS; }
 #endif
 
 #define try_then_request_module(x, mod...) ((x) ?: (request_module(mod), (x)))
-extern int call_usermodehelper(char *path, char *argv[], char *envp[], int wait);
+
+struct key;
+extern int call_usermodehelper_keys(char *path, char *argv[], char *envp[],
+                                    struct key *session_keyring, int wait);
+
+static inline int
+call_usermodehelper(char *path, char **argv, char **envp, int wait)
+{
+        return call_usermodehelper_keys(path, argv, envp, NULL, wait);
+}
+
 extern void usermodehelper_init(void);
 
 #endif /* __LINUX_KMOD_H__ */
diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
index 99ddba5a4e00..5e1a7b0d7b3f 100644
--- a/include/linux/kprobes.h
+++ b/include/linux/kprobes.h
@@ -25,27 +25,45 @@
  *              Rusty Russell).
  * 2004-July    Suparna Bhattacharya <suparna@in.ibm.com> added jumper probes
  *              interface to access function arguments.
+ * 2005-May     Hien Nguyen <hien@us.ibm.com> and Jim Keniston
+ *              <jkenisto@us.ibm.com>  and Prasanna S Panchamukhi
+ *              <prasanna@in.ibm.com> added function-return probes.
  */
 #include <linux/config.h>
 #include <linux/list.h>
 #include <linux/notifier.h>
 #include <linux/smp.h>
+
 #include <asm/kprobes.h>
 
+/* kprobe_status settings */
+#define KPROBE_HIT_ACTIVE       0x00000001
+#define KPROBE_HIT_SS           0x00000002
+#define KPROBE_REENTER          0x00000004
+#define KPROBE_HIT_SSDONE       0x00000008
+
 struct kprobe;
 struct pt_regs;
+struct kretprobe;
+struct kretprobe_instance;
 typedef int (*kprobe_pre_handler_t) (struct kprobe *, struct pt_regs *);
 typedef int (*kprobe_break_handler_t) (struct kprobe *, struct pt_regs *);
 typedef void (*kprobe_post_handler_t) (struct kprobe *, struct pt_regs *,
                                        unsigned long flags);
 typedef int (*kprobe_fault_handler_t) (struct kprobe *, struct pt_regs *,
                                        int trapnr);
+typedef int (*kretprobe_handler_t) (struct kretprobe_instance *,
+                                    struct pt_regs *);
+
 struct kprobe {
         struct hlist_node hlist;
 
         /* list of kprobes for multi-handler support */
         struct list_head list;
 
+        /*count the number of times this probe was temporarily disarmed */
+        unsigned long nmissed;
+
         /* location of the probe point */
         kprobe_opcode_t *addr;
 
@@ -85,6 +103,62 @@ struct jprobe {
         kprobe_opcode_t *entry; /* probe handling code to jump to */
 };
 
+#ifdef ARCH_SUPPORTS_KRETPROBES
+extern int trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs);
+extern void trampoline_post_handler(struct kprobe *p, struct pt_regs *regs,
+                                                        unsigned long flags);
+extern struct task_struct *arch_get_kprobe_task(void *ptr);
+extern void arch_prepare_kretprobe(struct kretprobe *rp, struct pt_regs *regs);
+extern void arch_kprobe_flush_task(struct task_struct *tk);
+#else /* ARCH_SUPPORTS_KRETPROBES */
+static inline void kretprobe_trampoline(void)
+{
+}
+static inline int trampoline_probe_handler(struct kprobe *p,
+                                                struct pt_regs *regs)
+{
+        return 0;
+}
+static inline void trampoline_post_handler(struct kprobe *p,
+                                struct pt_regs *regs, unsigned long flags)
+{
+}
+static inline void arch_prepare_kretprobe(struct kretprobe *rp,
+                                        struct pt_regs *regs)
+{
+}
+static inline void arch_kprobe_flush_task(struct task_struct *tk)
+{
+}
+#define arch_get_kprobe_task(ptr) ((struct task_struct *)NULL)
+#endif /* ARCH_SUPPORTS_KRETPROBES */
+/*
+ * Function-return probe -
+ * Note:
+ * User needs to provide a handler function, and initialize maxactive.
+ * maxactive - The maximum number of instances of the probed function that
+ * can be active concurrently.
+ * nmissed - tracks the number of times the probed function's return was
+ * ignored, due to maxactive being too low.
+ *
+ */
+struct kretprobe {
+        struct kprobe kp;
+        kretprobe_handler_t handler;
+        int maxactive;
+        int nmissed;
+        struct hlist_head free_instances;
+        struct hlist_head used_instances;
+};
+
+struct kretprobe_instance {
+        struct hlist_node uflist; /* either on free list or used list */
+        struct hlist_node hlist;
+        struct kretprobe *rp;
+        void *ret_addr;
+        void *stack_addr;
+};
+
 #ifdef CONFIG_KPROBES
 /* Locks kprobe: irq must be disabled */
 void lock_kprobes(void);
@@ -99,11 +173,14 @@ static inline int kprobe_running(void)
 
 extern int arch_prepare_kprobe(struct kprobe *p);
 extern void arch_copy_kprobe(struct kprobe *p);
+extern void arch_arm_kprobe(struct kprobe *p);
+extern void arch_disarm_kprobe(struct kprobe *p);
 extern void arch_remove_kprobe(struct kprobe *p);
 extern void show_registers(struct pt_regs *regs);
 
 /* Get the kprobe at this addr (if any).  Must have called lock_kprobes */
 struct kprobe *get_kprobe(void *addr);
+struct hlist_head * kretprobe_inst_table_head(struct task_struct *tsk);
 
 int register_kprobe(struct kprobe *p);
 void unregister_kprobe(struct kprobe *p);
@@ -113,7 +190,16 @@ int register_jprobe(struct jprobe *p);
 void unregister_jprobe(struct jprobe *p);
 void jprobe_return(void);
 
-#else
+int register_kretprobe(struct kretprobe *rp);
+void unregister_kretprobe(struct kretprobe *rp);
+
+struct kretprobe_instance *get_free_rp_inst(struct kretprobe *rp);
+struct kretprobe_instance *get_rp_inst(void *sara);
+struct kretprobe_instance *get_rp_inst_tsk(struct task_struct *tk);
+void add_rp_inst(struct kretprobe_instance *ri);
+void kprobe_flush_task(struct task_struct *tk);
+void recycle_rp_inst(struct kretprobe_instance *ri);
+#else /* CONFIG_KPROBES */
 static inline int kprobe_running(void)
 {
         return 0;
@@ -135,5 +221,15 @@ static inline void unregister_jprobe(struct jprobe *p)
 static inline void jprobe_return(void)
 {
 }
-#endif
+static inline int register_kretprobe(struct kretprobe *rp)
+{
+        return -ENOSYS;
+}
+static inline void unregister_kretprobe(struct kretprobe *rp)
+{
+}
+static inline void kprobe_flush_task(struct task_struct *tk)
+{
+}
+#endif                          /* CONFIG_KPROBES */
 #endif                          /* _LINUX_KPROBES_H */
diff --git a/include/linux/loop.h b/include/linux/loop.h
index 8220d9c9da00..53fa51595443 100644
--- a/include/linux/loop.h
+++ b/include/linux/loop.h
@@ -61,7 +61,7 @@ struct loop_device {
         struct semaphore        lo_sem;
         struct semaphore        lo_ctl_mutex;
         struct semaphore        lo_bh_mutex;
-        atomic_t                lo_pending;
+        int                     lo_pending;
 
         request_queue_t         *lo_queue;
 };
diff --git a/include/linux/mempool.h b/include/linux/mempool.h
index 4a36edf1c974..796220ce47cc 100644
--- a/include/linux/mempool.h
+++ b/include/linux/mempool.h
@@ -20,9 +20,14 @@ typedef struct mempool_s {
         mempool_free_t *free;
         wait_queue_head_t wait;
 } mempool_t;
-extern mempool_t * mempool_create(int min_nr, mempool_alloc_t *alloc_fn,
-                                 mempool_free_t *free_fn, void *pool_data);
-extern int mempool_resize(mempool_t *pool, int new_min_nr, unsigned int __nocast gfp_mask);
+
+extern mempool_t *mempool_create(int min_nr, mempool_alloc_t *alloc_fn,
+                        mempool_free_t *free_fn, void *pool_data);
+extern mempool_t *mempool_create_node(int min_nr, mempool_alloc_t *alloc_fn,
+                        mempool_free_t *free_fn, void *pool_data, int nid);
+
+extern int mempool_resize(mempool_t *pool, int new_min_nr,
+                        unsigned int __nocast gfp_mask);
 extern void mempool_destroy(mempool_t *pool);
 extern void * mempool_alloc(mempool_t *pool, unsigned int __nocast gfp_mask);
 extern void mempool_free(void *element, mempool_t *pool);
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 1813b162b0a8..6eb7f48317f8 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -395,19 +395,81 @@ static inline void put_page(struct page *page)
 /*
  * The zone field is never updated after free_area_init_core()
  * sets it, so none of the operations on it need to be atomic.
- * We'll have up to (MAX_NUMNODES * MAX_NR_ZONES) zones total,
- * so we use (MAX_NODES_SHIFT + MAX_ZONES_SHIFT) here to get enough bits.
  */
-#define NODEZONE_SHIFT (sizeof(page_flags_t)*8 - MAX_NODES_SHIFT - MAX_ZONES_SHIFT)
-#define NODEZONE(node, zone)    ((node << ZONES_SHIFT) | zone)
+
+
+/*
+ * page->flags layout:
+ *
+ * There are three possibilities for how page->flags get
+ * laid out.  The first is for the normal case, without
+ * sparsemem.  The second is for sparsemem when there is
+ * plenty of space for node and section.  The last is when
+ * we have run out of space and have to fall back to an
+ * alternate (slower) way of determining the node.
+ *
+ *        No sparsemem: |       NODE     | ZONE | ... | FLAGS |
+ * with space for node: | SECTION | NODE | ZONE | ... | FLAGS |
+ *   no space for node: | SECTION |     ZONE    | ... | FLAGS |
+ */
+#ifdef CONFIG_SPARSEMEM
+#define SECTIONS_WIDTH          SECTIONS_SHIFT
+#else
+#define SECTIONS_WIDTH          0
+#endif
+
+#define ZONES_WIDTH             ZONES_SHIFT
+
+#if SECTIONS_WIDTH+ZONES_WIDTH+NODES_SHIFT <= FLAGS_RESERVED
+#define NODES_WIDTH             NODES_SHIFT
+#else
+#define NODES_WIDTH             0
+#endif
+
+/* Page flags: | [SECTION] | [NODE] | ZONE | ... | FLAGS | */
+#define SECTIONS_PGOFF          ((sizeof(page_flags_t)*8) - SECTIONS_WIDTH)
+#define NODES_PGOFF             (SECTIONS_PGOFF - NODES_WIDTH)
+#define ZONES_PGOFF             (NODES_PGOFF - ZONES_WIDTH)
+
+/*
+ * We are going to use the flags for the page to node mapping if its in
+ * there.  This includes the case where there is no node, so it is implicit.
+ */
+#define FLAGS_HAS_NODE          (NODES_WIDTH > 0 || NODES_SHIFT == 0)
+
+#ifndef PFN_SECTION_SHIFT
+#define PFN_SECTION_SHIFT 0
+#endif
+
+/*
+ * Define the bit shifts to access each section.  For non-existant
+ * sections we define the shift as 0; that plus a 0 mask ensures
+ * the compiler will optimise away reference to them.
+ */
+#define SECTIONS_PGSHIFT        (SECTIONS_PGOFF * (SECTIONS_WIDTH != 0))
+#define NODES_PGSHIFT           (NODES_PGOFF * (NODES_WIDTH != 0))
+#define ZONES_PGSHIFT           (ZONES_PGOFF * (ZONES_WIDTH != 0))
+
+/* NODE:ZONE or SECTION:ZONE is used to lookup the zone from a page. */
+#if FLAGS_HAS_NODE
+#define ZONETABLE_SHIFT         (NODES_SHIFT + ZONES_SHIFT)
+#else
+#define ZONETABLE_SHIFT         (SECTIONS_SHIFT + ZONES_SHIFT)
+#endif
+#define ZONETABLE_PGSHIFT       ZONES_PGSHIFT
+
+#if SECTIONS_WIDTH+NODES_WIDTH+ZONES_WIDTH > FLAGS_RESERVED
+#error SECTIONS_WIDTH+NODES_WIDTH+ZONES_WIDTH > FLAGS_RESERVED
+#endif
+
+#define ZONES_MASK              ((1UL << ZONES_WIDTH) - 1)
+#define NODES_MASK              ((1UL << NODES_WIDTH) - 1)
+#define SECTIONS_MASK           ((1UL << SECTIONS_WIDTH) - 1)
+#define ZONETABLE_MASK          ((1UL << ZONETABLE_SHIFT) - 1)
 
 static inline unsigned long page_zonenum(struct page *page)
 {
-        return (page->flags >> NODEZONE_SHIFT) & (~(~0UL << ZONES_SHIFT));
-}
-static inline unsigned long page_to_nid(struct page *page)
-{
-        return (page->flags >> (NODEZONE_SHIFT + ZONES_SHIFT));
+        return (page->flags >> ZONES_PGSHIFT) & ZONES_MASK;
 }
 
 struct zone;
@@ -415,13 +477,44 @@ extern struct zone *zone_table[];
 
 static inline struct zone *page_zone(struct page *page)
 {
-        return zone_table[page->flags >> NODEZONE_SHIFT];
+        return zone_table[(page->flags >> ZONETABLE_PGSHIFT) &
+                        ZONETABLE_MASK];
+}
+
+static inline unsigned long page_to_nid(struct page *page)
+{
+        if (FLAGS_HAS_NODE)
+                return (page->flags >> NODES_PGSHIFT) & NODES_MASK;
+        else
+                return page_zone(page)->zone_pgdat->node_id;
+}
+static inline unsigned long page_to_section(struct page *page)
+{
+        return (page->flags >> SECTIONS_PGSHIFT) & SECTIONS_MASK;
+}
+
+static inline void set_page_zone(struct page *page, unsigned long zone)
+{
+        page->flags &= ~(ZONES_MASK << ZONES_PGSHIFT);
+        page->flags |= (zone & ZONES_MASK) << ZONES_PGSHIFT;
+}
+static inline void set_page_node(struct page *page, unsigned long node)
+{
+        page->flags &= ~(NODES_MASK << NODES_PGSHIFT);
+        page->flags |= (node & NODES_MASK) << NODES_PGSHIFT;
+}
+static inline void set_page_section(struct page *page, unsigned long section)
+{
+        page->flags &= ~(SECTIONS_MASK << SECTIONS_PGSHIFT);
+        page->flags |= (section & SECTIONS_MASK) << SECTIONS_PGSHIFT;
 }
 
-static inline void set_page_zone(struct page *page, unsigned long nodezone_num)
+static inline void set_page_links(struct page *page, unsigned long zone,
+        unsigned long node, unsigned long pfn)
 {
-        page->flags &= ~(~0UL << NODEZONE_SHIFT);
-        page->flags |= nodezone_num << NODEZONE_SHIFT;
+        set_page_zone(page, zone);
+        set_page_node(page, node);
+        set_page_section(page, pfn_to_section_nr(pfn));
 }
 
 #ifndef CONFIG_DISCONTIGMEM
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 4733d35d8223..6c90461ed99f 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -269,7 +269,9 @@ typedef struct pglist_data {
         struct zone node_zones[MAX_NR_ZONES];
         struct zonelist node_zonelists[GFP_ZONETYPES];
         int nr_zones;
+#ifdef CONFIG_FLAT_NODE_MEM_MAP
         struct page *node_mem_map;
+#endif
         struct bootmem_data *bdata;
         unsigned long node_start_pfn;
         unsigned long node_present_pages; /* total number of physical pages */
@@ -284,6 +286,12 @@ typedef struct pglist_data {
 
 #define node_present_pages(nid) (NODE_DATA(nid)->node_present_pages)
 #define node_spanned_pages(nid) (NODE_DATA(nid)->node_spanned_pages)
+#ifdef CONFIG_FLAT_NODE_MEM_MAP
+#define pgdat_page_nr(pgdat, pagenr)    ((pgdat)->node_mem_map + (pagenr))
+#else
+#define pgdat_page_nr(pgdat, pagenr)    pfn_to_page((pgdat)->node_start_pfn + (pagenr))
+#endif
+#define nid_page_nr(nid, pagenr)        pgdat_page_nr(NODE_DATA(nid),(pagenr))
 
 extern struct pglist_data *pgdat_list;
 
@@ -400,7 +408,7 @@ int lowmem_reserve_ratio_sysctl_handler(struct ctl_table *, int, struct file *,
 /* Returns the number of the current Node. */
 #define numa_node_id()          (cpu_to_node(raw_smp_processor_id()))
 
-#ifndef CONFIG_DISCONTIGMEM
+#ifndef CONFIG_NEED_MULTIPLE_NODES
 
 extern struct pglist_data contig_page_data;
 #define NODE_DATA(nid)          (&contig_page_data)
@@ -408,36 +416,177 @@ extern struct pglist_data contig_page_data;
 #define MAX_NODES_SHIFT         1
 #define pfn_to_nid(pfn)         (0)
 
-#else /* CONFIG_DISCONTIGMEM */
+#else /* CONFIG_NEED_MULTIPLE_NODES */
 
 #include <asm/mmzone.h>
 
+#endif /* !CONFIG_NEED_MULTIPLE_NODES */
+
+#ifdef CONFIG_SPARSEMEM
+#include <asm/sparsemem.h>
+#endif
+
 #if BITS_PER_LONG == 32 || defined(ARCH_HAS_ATOMIC_UNSIGNED)
 /*
  * with 32 bit page->flags field, we reserve 8 bits for node/zone info.
  * there are 3 zones (2 bits) and this leaves 8-2=6 bits for nodes.
  */
-#define MAX_NODES_SHIFT         6
+#define FLAGS_RESERVED          8
+
 #elif BITS_PER_LONG == 64
 /*
  * with 64 bit flags field, there's plenty of room.
  */
-#define MAX_NODES_SHIFT         10
+#define FLAGS_RESERVED          32
+
+#else
+
+#error BITS_PER_LONG not defined
+
+#endif
+
+#ifndef CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID
+#define early_pfn_to_nid(nid)  (0UL)
 #endif
 
-#endif /* !CONFIG_DISCONTIGMEM */
+#define pfn_to_section_nr(pfn) ((pfn) >> PFN_SECTION_SHIFT)
+#define section_nr_to_pfn(sec) ((sec) << PFN_SECTION_SHIFT)
+
+#ifdef CONFIG_SPARSEMEM
+
+/*
+ * SECTION_SHIFT                #bits space required to store a section #
+ *
+ * PA_SECTION_SHIFT             physical address to/from section number
+ * PFN_SECTION_SHIFT            pfn to/from section number
+ */
+#define SECTIONS_SHIFT          (MAX_PHYSMEM_BITS - SECTION_SIZE_BITS)
+
+#define PA_SECTION_SHIFT        (SECTION_SIZE_BITS)
+#define PFN_SECTION_SHIFT       (SECTION_SIZE_BITS - PAGE_SHIFT)
+
+#define NR_MEM_SECTIONS         (1UL << SECTIONS_SHIFT)
 
-#if NODES_SHIFT > MAX_NODES_SHIFT
-#error NODES_SHIFT > MAX_NODES_SHIFT
+#define PAGES_PER_SECTION       (1UL << PFN_SECTION_SHIFT)
+#define PAGE_SECTION_MASK       (~(PAGES_PER_SECTION-1))
+
+#if (MAX_ORDER - 1 + PAGE_SHIFT) > SECTION_SIZE_BITS
+#error Allocator MAX_ORDER exceeds SECTION_SIZE
 #endif
 
-/* There are currently 3 zones: DMA, Normal & Highmem, thus we need 2 bits */
-#define MAX_ZONES_SHIFT         2
+struct page;
+struct mem_section {
+        /*
+         * This is, logically, a pointer to an array of struct
+         * pages.  However, it is stored with some other magic.
+         * (see sparse.c::sparse_init_one_section())
+         *
+         * Making it a UL at least makes someone do a cast
+         * before using it wrong.
+         */
+        unsigned long section_mem_map;
+};
+
+extern struct mem_section mem_section[NR_MEM_SECTIONS];
 
-#if ZONES_SHIFT > MAX_ZONES_SHIFT
-#error ZONES_SHIFT > MAX_ZONES_SHIFT
+static inline struct mem_section *__nr_to_section(unsigned long nr)
+{
+        return &mem_section[nr];
+}
+
+/*
+ * We use the lower bits of the mem_map pointer to store
+ * a little bit of information.  There should be at least
+ * 3 bits here due to 32-bit alignment.
+ */
+#define SECTION_MARKED_PRESENT  (1UL<<0)
+#define SECTION_HAS_MEM_MAP     (1UL<<1)
+#define SECTION_MAP_LAST_BIT    (1UL<<2)
+#define SECTION_MAP_MASK        (~(SECTION_MAP_LAST_BIT-1))
+
+static inline struct page *__section_mem_map_addr(struct mem_section *section)
+{
+        unsigned long map = section->section_mem_map;
+        map &= SECTION_MAP_MASK;
+        return (struct page *)map;
+}
+
+static inline int valid_section(struct mem_section *section)
+{
+        return (section->section_mem_map & SECTION_MARKED_PRESENT);
+}
+
+static inline int section_has_mem_map(struct mem_section *section)
+{
+        return (section->section_mem_map & SECTION_HAS_MEM_MAP);
+}
+
+static inline int valid_section_nr(unsigned long nr)
+{
+        return valid_section(__nr_to_section(nr));
+}
+
+/*
+ * Given a kernel address, find the home node of the underlying memory.
+ */
+#define kvaddr_to_nid(kaddr)    pfn_to_nid(__pa(kaddr) >> PAGE_SHIFT)
+
+static inline struct mem_section *__pfn_to_section(unsigned long pfn)
+{
+        return __nr_to_section(pfn_to_section_nr(pfn));
+}
+
+#define pfn_to_page(pfn)                                                \
+({                                                                      \
+        unsigned long __pfn = (pfn);                                    \
+        __section_mem_map_addr(__pfn_to_section(__pfn)) + __pfn;        \
+})
+#define page_to_pfn(page)                                               \
+({                                                                      \
+        page - __section_mem_map_addr(__nr_to_section(                  \
+                page_to_section(page)));                                \
+})
+
+static inline int pfn_valid(unsigned long pfn)
+{
+        if (pfn_to_section_nr(pfn) >= NR_MEM_SECTIONS)
+                return 0;
+        return valid_section(__nr_to_section(pfn_to_section_nr(pfn)));
+}
+
+/*
+ * These are _only_ used during initialisation, therefore they
+ * can use __initdata ...  They could have names to indicate
+ * this restriction.
+ */
+#ifdef CONFIG_NUMA
+#define pfn_to_nid              early_pfn_to_nid
+#endif
+
+#define pfn_to_pgdat(pfn)                                               \
+({                                                                      \
+        NODE_DATA(pfn_to_nid(pfn));                                     \
+})
+
+#define early_pfn_valid(pfn)    pfn_valid(pfn)
+void sparse_init(void);
+#else
+#define sparse_init()   do {} while (0)
+#endif /* CONFIG_SPARSEMEM */
+
+#ifdef CONFIG_NODES_SPAN_OTHER_NODES
+#define early_pfn_in_nid(pfn, nid)      (early_pfn_to_nid(pfn) == (nid))
+#else
+#define early_pfn_in_nid(pfn, nid)      (1)
+#endif
+
+#ifndef early_pfn_valid
+#define early_pfn_valid(pfn)    (1)
 #endif
 
+void memory_present(int nid, unsigned long start, unsigned long end);
+unsigned long __init node_memmap_size_bytes(int, unsigned long, unsigned long);
+
 #endif /* !__ASSEMBLY__ */
 #endif /* __KERNEL__ */
 #endif /* _LINUX_MMZONE_H */
diff --git a/include/linux/module.h b/include/linux/module.h
index 0e432a0f4aee..f05372b7fe77 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -51,6 +51,9 @@ struct module_attribute {
         ssize_t (*show)(struct module_attribute *, struct module *, char *);
         ssize_t (*store)(struct module_attribute *, struct module *,
                          const char *, size_t count);
+        void (*setup)(struct module *, const char *);
+        int (*test)(struct module *);
+        void (*free)(struct module *);
 };
 
 struct module_kobject
@@ -239,6 +242,8 @@ struct module
         /* Sysfs stuff. */
         struct module_kobject mkobj;
         struct module_param_attrs *param_attrs;
+        const char *version;
+        const char *srcversion;
 
         /* Exported symbols */
         const struct kernel_symbol *syms;
diff --git a/include/linux/namespace.h b/include/linux/namespace.h
index 9eca1558d72f..697991b69f9b 100644
--- a/include/linux/namespace.h
+++ b/include/linux/namespace.h
@@ -12,7 +12,6 @@ struct namespace {
         struct rw_semaphore     sem;
 };
 
-extern void umount_tree(struct vfsmount *);
 extern int copy_namespace(int, struct task_struct *);
 extern void __put_namespace(struct namespace *namespace);
 
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index d6afd440cf7b..3a0ed7f9e801 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -164,12 +164,6 @@ struct netif_rx_stats
         unsigned total;
         unsigned dropped;
         unsigned time_squeeze;
-        unsigned throttled;
-        unsigned fastroute_hit;
-        unsigned fastroute_success;
-        unsigned fastroute_defer;
-        unsigned fastroute_deferred_out;
-        unsigned fastroute_latency_reduction;
         unsigned cpu_collision;
 };
 
@@ -562,12 +556,9 @@ static inline int unregister_gifconf(unsigned int family)
 
 struct softnet_data
 {
-        int                     throttle;
-        int                     cng_level;
-        int                     avg_blog;
+        struct net_device       *output_queue;
         struct sk_buff_head     input_pkt_queue;
         struct list_head        poll_list;
-        struct net_device       *output_queue;
         struct sk_buff          *completion_queue;
 
         struct net_device       backlog_dev;    /* Sorry. 8) */
@@ -925,10 +916,6 @@ extern int skb_checksum_help(struct sk_buff *skb, int inward);
 extern void             net_enable_timestamp(void);
 extern void             net_disable_timestamp(void);
 
-#ifdef CONFIG_SYSCTL
-extern char *net_sysctl_strdup(const char *s);
-#endif
-
 #endif /* __KERNEL__ */
 
 #endif  /* _LINUX_DEV_H */
diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index 5bb5b2fd7ba2..0c1c306cdaec 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -28,7 +28,7 @@
 #define NFS4_ACCESS_DELETE      0x0010
 #define NFS4_ACCESS_EXECUTE     0x0020
 
-#define NFS4_FH_PERISTENT               0x0000
+#define NFS4_FH_PERSISTENT              0x0000
 #define NFS4_FH_NOEXPIRE_WITH_OPEN      0x0001
 #define NFS4_FH_VOLATILE_ANY            0x0002
 #define NFS4_FH_VOL_MIGRATION           0x0004
diff --git a/include/linux/nfsd/nfsd.h b/include/linux/nfsd/nfsd.h
index 4bf931d5ff56..5791dfd30dd0 100644
--- a/include/linux/nfsd/nfsd.h
+++ b/include/linux/nfsd/nfsd.h
@@ -145,15 +145,19 @@ int nfsd_set_posix_acl(struct svc_fh *, int, struct posix_acl *);
  * NFSv4 State
  */
 #ifdef CONFIG_NFSD_V4
-int nfs4_state_init(void);
+void nfs4_state_init(void);
+int nfs4_state_start(void);
 void nfs4_state_shutdown(void);
 time_t nfs4_lease_time(void);
 void nfs4_reset_lease(time_t leasetime);
+int nfs4_reset_recoverydir(char *recdir);
 #else
-static inline int nfs4_state_init(void){return 0;}
+static inline void nfs4_state_init(void){};
+static inline int nfs4_state_start(void){return 0;}
 static inline void nfs4_state_shutdown(void){}
 static inline time_t nfs4_lease_time(void){return 0;}
 static inline void nfs4_reset_lease(time_t leasetime){}
+static inline int nfs4_reset_recoverydir(char *recdir) {return 0;}
 #endif
 
 /*
diff --git a/include/linux/nfsd/state.h b/include/linux/nfsd/state.h
index b6b2fe1e7c63..a84a3fa99be1 100644
--- a/include/linux/nfsd/state.h
+++ b/include/linux/nfsd/state.h
@@ -61,11 +61,6 @@ typedef struct {
 #define si_stateownerid   si_opaque.so_stateownerid
 #define si_fileid         si_opaque.so_fileid
 
-extern stateid_t zerostateid;
-extern stateid_t onestateid;
-
-#define ZERO_STATEID(stateid)       (!memcmp((stateid), &zerostateid, sizeof(stateid_t)))
-#define ONE_STATEID(stateid)        (!memcmp((stateid), &onestateid, sizeof(stateid_t)))
 
 struct nfs4_cb_recall {
         u32                     cbr_ident;
@@ -77,8 +72,8 @@ struct nfs4_cb_recall {
 };
 
 struct nfs4_delegation {
-        struct list_head        dl_del_perfile; /* nfs4_file->fi_del_perfile */
-        struct list_head        dl_del_perclnt; /* nfs4_client->cl_del_perclnt*/
+        struct list_head        dl_perfile;
+        struct list_head        dl_perclnt;
         struct list_head        dl_recall_lru;  /* delegation recalled */
         atomic_t                dl_count;       /* ref count */
         struct nfs4_client      *dl_client;
@@ -97,7 +92,6 @@ struct nfs4_delegation {
 /* client delegation callback info */
 struct nfs4_callback {
         /* SETCLIENTID info */
-        u32                     cb_parsed;  /* addr parsed */
         u32                     cb_addr;
         unsigned short          cb_port;
         u32                     cb_prog;
@@ -109,6 +103,8 @@ struct nfs4_callback {
         struct rpc_clnt *       cb_client;
 };
 
+#define HEXDIR_LEN     33 /* hex version of 16 byte md5 of cl_name plus '\0' */
+
 /*
  * struct nfs4_client - one per client.  Clientids live here.
  *      o Each nfs4_client is hashed by clientid.
@@ -122,10 +118,11 @@ struct nfs4_callback {
 struct nfs4_client {
         struct list_head        cl_idhash;      /* hash by cl_clientid.id */
         struct list_head        cl_strhash;     /* hash by cl_name */
-        struct list_head        cl_perclient;   /* list: stateowners */
-        struct list_head        cl_del_perclnt; /* list: delegations */
+        struct list_head        cl_openowners;
+        struct list_head        cl_delegations;
         struct list_head        cl_lru;         /* tail queue */
         struct xdr_netobj       cl_name;        /* id generated by client */
+        char                    cl_recdir[HEXDIR_LEN]; /* recovery dir */
         nfs4_verifier           cl_verifier;    /* generated by client */
         time_t                  cl_time;        /* time of last lease renewal */
         u32                     cl_addr;        /* client ipaddress */
@@ -134,6 +131,7 @@ struct nfs4_client {
         nfs4_verifier           cl_confirm;     /* generated by server */
         struct nfs4_callback    cl_callback;    /* callback info */
         atomic_t                cl_count;       /* ref count */
+        u32                     cl_firststate;  /* recovery dir creation */
 };
 
 /* struct nfs4_client_reset
@@ -143,7 +141,7 @@ struct nfs4_client {
  */
 struct nfs4_client_reclaim {
         struct list_head        cr_strhash;     /* hash by cr_name */
-        struct xdr_netobj       cr_name;        /* id generated by client */
+        char                    cr_recdir[HEXDIR_LEN]; /* recover dir */
 };
 
 static inline void
@@ -197,9 +195,9 @@ struct nfs4_stateowner {
         struct kref             so_ref;
         struct list_head        so_idhash;   /* hash by so_id */
         struct list_head        so_strhash;   /* hash by op_name */
-        struct list_head        so_perclient; /* nfs4_client->cl_perclient */
-        struct list_head        so_perfilestate; /* list: nfs4_stateid */
-        struct list_head        so_perlockowner; /* nfs4_stateid->st_perlockowner */
+        struct list_head        so_perclient;
+        struct list_head        so_stateids;
+        struct list_head        so_perstateid; /* for lockowners only */
         struct list_head        so_close_lru; /* tail queue */
         time_t                  so_time; /* time of placement on so_close_lru */
         int                     so_is_open_owner; /* 1=openowner,0=lockowner */
@@ -217,9 +215,10 @@ struct nfs4_stateowner {
 *      share_acces, share_deny on the file.
 */
 struct nfs4_file {
+        struct kref             fi_ref;
         struct list_head        fi_hash;    /* hash by "struct inode *" */
-        struct list_head        fi_perfile; /* list: nfs4_stateid */
-        struct list_head        fi_del_perfile; /* list: nfs4_delegation */
+        struct list_head        fi_stateids;
+        struct list_head        fi_delegations;
         struct inode            *fi_inode;
         u32                     fi_id;      /* used with stateowner->so_id 
                                              * for stateid_hashtbl hash */
@@ -241,8 +240,8 @@ struct nfs4_file {
 struct nfs4_stateid {
         struct list_head              st_hash; 
         struct list_head              st_perfile;
-        struct list_head              st_perfilestate; 
-        struct list_head              st_perlockowner;
+        struct list_head              st_perstateowner;
+        struct list_head              st_lockowners;
         struct nfs4_stateowner      * st_stateowner;
         struct nfs4_file            * st_file;
         stateid_t                     st_stateid;
@@ -267,12 +266,9 @@ struct nfs4_stateid {
         ((err) != nfserr_stale_stateid) &&      \
         ((err) != nfserr_bad_stateid))
 
-extern time_t nfs4_laundromat(void);
 extern int nfsd4_renew(clientid_t *clid);
 extern int nfs4_preprocess_stateid_op(struct svc_fh *current_fh, 
                 stateid_t *stateid, int flags, struct file **filp);
-extern int nfs4_share_conflict(struct svc_fh *current_fh, 
-                unsigned int deny_type);
 extern void nfs4_lock_state(void);
 extern void nfs4_unlock_state(void);
 extern int nfs4_in_grace(void);
@@ -282,6 +278,15 @@ extern void nfs4_free_stateowner(struct kref *kref);
 extern void nfsd4_probe_callback(struct nfs4_client *clp);
 extern void nfsd4_cb_recall(struct nfs4_delegation *dp);
 extern void nfs4_put_delegation(struct nfs4_delegation *dp);
+extern int nfs4_make_rec_clidname(char *clidname, struct xdr_netobj *clname);
+extern void nfsd4_init_recdir(char *recdir_name);
+extern int nfsd4_recdir_load(void);
+extern void nfsd4_shutdown_recdir(void);
+extern int nfs4_client_to_reclaim(const char *name);
+extern int nfs4_has_reclaimed_state(const char *name);
+extern void nfsd4_recdir_purge_old(void);
+extern int nfsd4_create_clid_dir(struct nfs4_client *clp);
+extern void nfsd4_remove_clid_dir(struct nfs4_client *clp);
 
 static inline void
 nfs4_put_stateowner(struct nfs4_stateowner *so)
diff --git a/include/linux/nfsd/xdr4.h b/include/linux/nfsd/xdr4.h
index a1f5ad0be1bf..4d24d65c0e88 100644
--- a/include/linux/nfsd/xdr4.h
+++ b/include/linux/nfsd/xdr4.h
@@ -210,6 +210,7 @@ struct nfsd4_open {
         u32             op_share_access;    /* request */
         u32             op_share_deny;      /* request */
         stateid_t       op_stateid;         /* response */
+        u32             op_recall;          /* recall */
         struct nfsd4_change_info  op_cinfo; /* response */
         u32             op_rflags;          /* response */
         int             op_truncate;        /* used during processing */
diff --git a/include/linux/nfsd_idmap.h b/include/linux/nfsd_idmap.h
index 9bb7f30e923b..e82746fcad14 100644
--- a/include/linux/nfsd_idmap.h
+++ b/include/linux/nfsd_idmap.h
@@ -43,8 +43,13 @@
 /* XXX from linux/nfs_idmap.h */
 #define IDMAP_NAMESZ 128
 
+#ifdef CONFIG_NFSD_V4
 void nfsd_idmap_init(void);
 void nfsd_idmap_shutdown(void);
+#else
+static inline void nfsd_idmap_init(void) {};
+static inline void nfsd_idmap_shutdown(void) {};
+#endif
 
 int nfsd_map_name_to_uid(struct svc_rqst *, const char *, size_t, __u32 *);
 int nfsd_map_name_to_gid(struct svc_rqst *, const char *, size_t, __u32 *);
diff --git a/include/linux/numa.h b/include/linux/numa.h
index bd0c8c4e9a95..f0c539bd3cfc 100644
--- a/include/linux/numa.h
+++ b/include/linux/numa.h
@@ -3,7 +3,7 @@
 
 #include <linux/config.h>
 
-#ifdef CONFIG_DISCONTIGMEM
+#ifndef CONFIG_FLATMEM
 #include <asm/numnodes.h>
 #endif
 
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 63e89e47b8e9..bf608808a60c 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -1568,6 +1568,7 @@
 #define PCI_DEVICE_ID_SERVERWORKS_OSB4USB 0x0220
 #define PCI_DEVICE_ID_SERVERWORKS_CSB5USB PCI_DEVICE_ID_SERVERWORKS_OSB4USB
 #define PCI_DEVICE_ID_SERVERWORKS_CSB6USB 0x0221
+#define PCI_DEVICE_ID_SERVERWORKS_CSB6LPC 0x0227
 #define PCI_DEVICE_ID_SERVERWORKS_GCLE    0x0225
 #define PCI_DEVICE_ID_SERVERWORKS_GCLE2   0x0227
 #define PCI_DEVICE_ID_SERVERWORKS_CSB5ISA 0x0230
diff --git a/include/linux/pkt_cls.h b/include/linux/pkt_cls.h
index d2aa214d6803..25d2d67c1faf 100644
--- a/include/linux/pkt_cls.h
+++ b/include/linux/pkt_cls.h
@@ -408,6 +408,7 @@ enum
         TCF_EM_NBYTE,
         TCF_EM_U32,
         TCF_EM_META,
+        TCF_EM_TEXT,
         __TCF_EM_MAX
 };
 
diff --git a/include/linux/pktcdvd.h b/include/linux/pktcdvd.h
index 4e2d2a942ecb..4b32bce9a289 100644
--- a/include/linux/pktcdvd.h
+++ b/include/linux/pktcdvd.h
@@ -159,7 +159,7 @@ struct packet_iosched
         struct bio              *read_queue_tail;
         struct bio              *write_queue;
         struct bio              *write_queue_tail;
-        int                     high_prio_read; /* An important read request has been queued */
+        sector_t                last_write;     /* The sector where the last write ended */
         int                     successive_reads;
 };
 
diff --git a/include/linux/posix_acl_xattr.h b/include/linux/posix_acl_xattr.h
index 5efd0a6dad94..6e53c34035cd 100644
--- a/include/linux/posix_acl_xattr.h
+++ b/include/linux/posix_acl_xattr.h
@@ -23,13 +23,13 @@
 #define ACL_UNDEFINED_ID        (-1)
 
 typedef struct {
-        __u16                   e_tag;
-        __u16                   e_perm;
-        __u32                   e_id;
+        __le16                  e_tag;
+        __le16                  e_perm;
+        __le32                  e_id;
 } posix_acl_xattr_entry;
 
 typedef struct {
-        __u32                   a_version;
+        __le32                  a_version;
         posix_acl_xattr_entry   a_entries[0];
 } posix_acl_xattr_header;
 
@@ -52,4 +52,7 @@ posix_acl_xattr_count(size_t size)
         return size / sizeof(posix_acl_xattr_entry);
 }
 
+struct posix_acl *posix_acl_from_xattr(const void *value, size_t size);
+int posix_acl_to_xattr(const struct posix_acl *acl, void *buffer, size_t size);
+
 #endif  /* _POSIX_ACL_XATTR_H */
diff --git a/include/linux/qnx4_fs.h b/include/linux/qnx4_fs.h
index 22ba580b0ae8..fc610bb0f733 100644
--- a/include/linux/qnx4_fs.h
+++ b/include/linux/qnx4_fs.h
@@ -46,11 +46,11 @@ struct qnx4_inode_entry {
         char            di_fname[QNX4_SHORT_NAME_MAX];
         qnx4_off_t      di_size;
         qnx4_xtnt_t     di_first_xtnt;
-        __u32           di_xblk;
-        __s32           di_ftime;
-        __s32           di_mtime;
-        __s32           di_atime;
-        __s32           di_ctime;
+        __le32          di_xblk;
+        __le32          di_ftime;
+        __le32          di_mtime;
+        __le32          di_atime;
+        __le32          di_ctime;
         qnx4_nxtnt_t    di_num_xtnts;
         qnx4_mode_t     di_mode;
         qnx4_muid_t     di_uid;
@@ -63,18 +63,18 @@ struct qnx4_inode_entry {
 
 struct qnx4_link_info {
         char            dl_fname[QNX4_NAME_MAX];
-        __u32           dl_inode_blk;
+        __le32          dl_inode_blk;
         __u8            dl_inode_ndx;
         __u8            dl_spare[10];
         __u8            dl_status;
 };
 
 struct qnx4_xblk {
-        __u32           xblk_next_xblk;
-        __u32           xblk_prev_xblk;
+        __le32          xblk_next_xblk;
+        __le32          xblk_prev_xblk;
         __u8            xblk_num_xtnts;
         __u8            xblk_spare[3];
-        __s32           xblk_num_blocks;
+        __le32          xblk_num_blocks;
         qnx4_xtnt_t     xblk_xtnts[QNX4_MAX_XTNTS_PER_XBLK];
         char            xblk_signature[8];
         qnx4_xtnt_t     xblk_first_xtnt;
diff --git a/include/linux/qnxtypes.h b/include/linux/qnxtypes.h
index fb518e318c7c..a3eb1137857b 100644
--- a/include/linux/qnxtypes.h
+++ b/include/linux/qnxtypes.h
@@ -12,18 +12,18 @@
 #ifndef _QNX4TYPES_H
 #define _QNX4TYPES_H
 
-typedef __u16 qnx4_nxtnt_t;
+typedef __le16 qnx4_nxtnt_t;
 typedef __u8  qnx4_ftype_t;
 
 typedef struct {
-        __u32 xtnt_blk;
-        __u32 xtnt_size;
+        __le32 xtnt_blk;
+        __le32 xtnt_size;
 } qnx4_xtnt_t;
 
-typedef __u16 qnx4_mode_t;
-typedef __u16 qnx4_muid_t;
-typedef __u16 qnx4_mgid_t;
-typedef __u32 qnx4_off_t;
-typedef __u16 qnx4_nlink_t;
+typedef __le16 qnx4_mode_t;
+typedef __le16 qnx4_muid_t;
+typedef __le16 qnx4_mgid_t;
+typedef __le32 qnx4_off_t;
+typedef __le16 qnx4_nlink_t;
 
 #endif
diff --git a/include/linux/quota.h b/include/linux/quota.h
index ac5b90f4f256..700ead45084f 100644
--- a/include/linux/quota.h
+++ b/include/linux/quota.h
@@ -138,8 +138,11 @@ struct if_dqinfo {
 #include <linux/dqblk_v2.h>
 
 /* Maximal numbers of writes for quota operation (insert/delete/update)
- * (over all formats) - info block, 4 pointer blocks, data block */
-#define DQUOT_MAX_WRITES        6
+ * (over VFS all formats) */
+#define DQUOT_INIT_ALLOC max(V1_INIT_ALLOC, V2_INIT_ALLOC)
+#define DQUOT_INIT_REWRITE max(V1_INIT_REWRITE, V2_INIT_REWRITE)
+#define DQUOT_DEL_ALLOC max(V1_DEL_ALLOC, V2_DEL_ALLOC)
+#define DQUOT_DEL_REWRITE max(V1_DEL_REWRITE, V2_DEL_REWRITE)
 
 /*
  * Data for one user/group kept in memory
diff --git a/include/linux/quotaops.h b/include/linux/quotaops.h
index e57baa85e744..d211507ab246 100644
--- a/include/linux/quotaops.h
+++ b/include/linux/quotaops.h
@@ -39,7 +39,8 @@ extern int dquot_commit_info(struct super_block *sb, int type);
 extern int dquot_mark_dquot_dirty(struct dquot *dquot);
 
 extern int vfs_quota_on(struct super_block *sb, int type, int format_id, char *path);
-extern int vfs_quota_on_mount(int type, int format_id, struct dentry *dentry);
+extern int vfs_quota_on_mount(struct super_block *sb, char *qf_name,
+                int format_id, int type);
 extern int vfs_quota_off(struct super_block *sb, int type);
 #define vfs_quota_off_mount(sb, type) vfs_quota_off(sb, type)
 extern int vfs_quota_sync(struct super_block *sb, int type);
diff --git a/include/linux/reiserfs_acl.h b/include/linux/reiserfs_acl.h
index 2aef9c3f5ce8..0760507a545b 100644
--- a/include/linux/reiserfs_acl.h
+++ b/include/linux/reiserfs_acl.h
@@ -1,6 +1,5 @@
 #include <linux/init.h>
 #include <linux/posix_acl.h>
-#include <linux/xattr_acl.h>
 
 #define REISERFS_ACL_VERSION    0x0001
 
diff --git a/include/linux/reiserfs_fs.h b/include/linux/reiserfs_fs.h
index 32148625fc2f..4c7c5689ad93 100644
--- a/include/linux/reiserfs_fs.h
+++ b/include/linux/reiserfs_fs.h
@@ -1644,11 +1644,18 @@ struct reiserfs_journal_header {
 #define JOURNAL_MAX_TRANS_AGE 30
 #define JOURNAL_PER_BALANCE_CNT (3 * (MAX_HEIGHT-2) + 9)
 #ifdef CONFIG_QUOTA
-#define REISERFS_QUOTA_TRANS_BLOCKS 2   /* We need to update data and inode (atime) */
-#define REISERFS_QUOTA_INIT_BLOCKS (DQUOT_MAX_WRITES*(JOURNAL_PER_BALANCE_CNT+2)+1)     /* 1 balancing, 1 bitmap, 1 data per write + stat data update */
+/* We need to update data and inode (atime) */
+#define REISERFS_QUOTA_TRANS_BLOCKS(s) (REISERFS_SB(s)->s_mount_opt & (1<<REISERFS_QUOTA) ? 2 : 0)
+/* 1 balancing, 1 bitmap, 1 data per write + stat data update */
+#define REISERFS_QUOTA_INIT_BLOCKS(s) (REISERFS_SB(s)->s_mount_opt & (1<<REISERFS_QUOTA) ? \
+(DQUOT_INIT_ALLOC*(JOURNAL_PER_BALANCE_CNT+2)+DQUOT_INIT_REWRITE+1) : 0)
+/* same as with INIT */
+#define REISERFS_QUOTA_DEL_BLOCKS(s) (REISERFS_SB(s)->s_mount_opt & (1<<REISERFS_QUOTA) ? \
+(DQUOT_DEL_ALLOC*(JOURNAL_PER_BALANCE_CNT+2)+DQUOT_DEL_REWRITE+1) : 0)
 #else
-#define REISERFS_QUOTA_TRANS_BLOCKS 0
-#define REISERFS_QUOTA_INIT_BLOCKS 0
+#define REISERFS_QUOTA_TRANS_BLOCKS(s) 0
+#define REISERFS_QUOTA_INIT_BLOCKS(s) 0
+#define REISERFS_QUOTA_DEL_BLOCKS(s) 0
 #endif
 
 /* both of these can be as low as 1, or as high as you want.  The min is the
diff --git a/include/linux/reiserfs_fs_sb.h b/include/linux/reiserfs_fs_sb.h
index 37a3a7afbec7..31c709d0fe18 100644
--- a/include/linux/reiserfs_fs_sb.h
+++ b/include/linux/reiserfs_fs_sb.h
@@ -467,6 +467,8 @@ enum reiserfs_mount_options {
     REISERFS_ERROR_RO,
     REISERFS_ERROR_CONTINUE,
 
+    REISERFS_QUOTA,             /* Some quota option specified */
+
     REISERFS_TEST1,
     REISERFS_TEST2,
     REISERFS_TEST3,
diff --git a/include/linux/rmap.h b/include/linux/rmap.h
index 11b484e37ac9..e80fb7ee6efd 100644
--- a/include/linux/rmap.h
+++ b/include/linux/rmap.h
@@ -93,6 +93,12 @@ int page_referenced(struct page *, int is_locked, int ignore_token);
 int try_to_unmap(struct page *);
 
 /*
+ * Called from mm/filemap_xip.c to unmap empty zero page
+ */
+pte_t *page_check_address(struct page *, struct mm_struct *, unsigned long);
+
+
+/*
  * Used by swapoff to help locate where page is expected in vma.
  */
 unsigned long page_address_in_vma(struct page *, struct vm_area_struct *);
diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h
index e68dbf0bf579..d021888b58f1 100644
--- a/include/linux/rtnetlink.h
+++ b/include/linux/rtnetlink.h
@@ -892,10 +892,13 @@ extern void __rta_fill(struct sk_buff *skb, int attrtype, int attrlen, const voi
                  goto rtattr_failure; \
         __rta_fill(skb, attrtype, attrlen, data); }) 
 
-#define RTA_PUT_NOHDR(skb, attrlen, data) \
+#define RTA_APPEND(skb, attrlen, data) \
 ({      if (unlikely(skb_tailroom(skb) < (int)(attrlen))) \
                 goto rtattr_failure; \
-        memcpy(skb_put(skb, RTA_ALIGN(attrlen)), data, attrlen); })
+        memcpy(skb_put(skb, attrlen), data, attrlen); })
+
+#define RTA_PUT_NOHDR(skb, attrlen, data) \
+        RTA_APPEND(skb, RTA_ALIGN(attrlen), data)
 
 #define RTA_PUT_U8(skb, attrtype, value) \
 ({      u8 _tmp = (value); \
diff --git a/include/linux/sched.h b/include/linux/sched.h
index b58afd97a180..2c69682b0444 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -246,7 +246,7 @@ struct mm_struct {
 
         unsigned long saved_auxv[42]; /* for /proc/PID/auxv */
 
-        unsigned dumpable:1;
+        unsigned dumpable:2;
         cpumask_t cpu_vm_mask;
 
         /* Architecture-specific MM context */
@@ -561,9 +561,10 @@ struct group_info {
                 groups_free(group_info); \
 } while (0)
 
-struct group_info *groups_alloc(int gidsetsize);
-void groups_free(struct group_info *group_info);
-int set_current_groups(struct group_info *group_info);
+extern struct group_info *groups_alloc(int gidsetsize);
+extern void groups_free(struct group_info *group_info);
+extern int set_current_groups(struct group_info *group_info);
+extern int groups_search(struct group_info *group_info, gid_t grp);
 /* access the groups "array" with this macro */
 #define GROUP_AT(gi, i) \
     ((gi)->blocks[(i)/NGROUPS_PER_BLOCK][(i)%NGROUPS_PER_BLOCK])
@@ -660,6 +661,7 @@ struct task_struct {
         struct user_struct *user;
 #ifdef CONFIG_KEYS
         struct key *thread_keyring;     /* keyring private to this thread */
+        unsigned char jit_keyring;      /* default keyring to attach requested keys to */
 #endif
         int oomkilladj; /* OOM kill score adjustment (bit shift). */
         char comm[TASK_COMM_LEN]; /* executable name excluding path
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index d7c839a21842..416a2e4024b2 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -27,6 +27,7 @@
 #include <linux/highmem.h>
 #include <linux/poll.h>
 #include <linux/net.h>
+#include <linux/textsearch.h>
 #include <net/checksum.h>
 
 #define HAVE_ALLOC_SKB          /* For the drivers to know */
@@ -321,6 +322,28 @@ extern void	      skb_over_panic(struct sk_buff *skb, int len,
 extern void           skb_under_panic(struct sk_buff *skb, int len,
                                       void *here);
 
+struct skb_seq_state
+{
+        __u32           lower_offset;
+        __u32           upper_offset;
+        __u32           frag_idx;
+        __u32           stepped_offset;
+        struct sk_buff  *root_skb;
+        struct sk_buff  *cur_skb;
+        __u8            *frag_data;
+};
+
+extern void           skb_prepare_seq_read(struct sk_buff *skb,
+                                           unsigned int from, unsigned int to,
+                                           struct skb_seq_state *st);
+extern unsigned int   skb_seq_read(unsigned int consumed, const u8 **data,
+                                   struct skb_seq_state *st);
+extern void           skb_abort_seq_read(struct skb_seq_state *st);
+
+extern unsigned int   skb_find_text(struct sk_buff *skb, unsigned int from,
+                                    unsigned int to, struct ts_config *config,
+                                    struct ts_state *state);
+
 /* Internal */
 #define skb_shinfo(SKB)         ((struct skb_shared_info *)((SKB)->end))
 
diff --git a/include/linux/string.h b/include/linux/string.h
index b9fc59469956..93994c613095 100644
--- a/include/linux/string.h
+++ b/include/linux/string.h
@@ -88,6 +88,8 @@ extern int memcmp(const void *,const void *,__kernel_size_t);
 extern void * memchr(const void *,int,__kernel_size_t);
 #endif
 
+extern char *kstrdup(const char *s, int gfp);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index a17745c80a91..ebfe1250f0a4 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -136,6 +136,7 @@ enum
         KERN_UNKNOWN_NMI_PANIC=66, /* int: unknown nmi panic flag */
         KERN_BOOTLOADER_TYPE=67, /* int: boot loader type */
         KERN_RANDOMIZE=68, /* int: randomize virtual address space */
+        KERN_SETUID_DUMPABLE=69, /* int: behaviour of dumps for setuid core */
 };
 
 
@@ -242,6 +243,7 @@ enum
         NET_CORE_MOD_CONG=16,
         NET_CORE_DEV_WEIGHT=17,
         NET_CORE_SOMAXCONN=18,
+        NET_CORE_BUDGET=19,
 };
 
 /* /proc/sys/net/ethernet */
@@ -332,21 +334,14 @@ enum
         NET_TCP_FRTO=92,
         NET_TCP_LOW_LATENCY=93,
         NET_IPV4_IPFRAG_SECRET_INTERVAL=94,
-        NET_TCP_WESTWOOD=95,
         NET_IPV4_IGMP_MAX_MSF=96,
         NET_TCP_NO_METRICS_SAVE=97,
-        NET_TCP_VEGAS=98,
-        NET_TCP_VEGAS_ALPHA=99,
-        NET_TCP_VEGAS_BETA=100,
-        NET_TCP_VEGAS_GAMMA=101,
-        NET_TCP_BIC=102,
-        NET_TCP_BIC_FAST_CONVERGENCE=103,
-        NET_TCP_BIC_LOW_WINDOW=104,
         NET_TCP_DEFAULT_WIN_SCALE=105,
         NET_TCP_MODERATE_RCVBUF=106,
         NET_TCP_TSO_WIN_DIVISOR=107,
         NET_TCP_BIC_BETA=108,
         NET_IPV4_ICMP_ERRORS_USE_INBOUND_IFADDR=109,
+        NET_TCP_CONG_CONTROL=110,
 };
 
 enum {
diff --git a/include/linux/tc_ematch/tc_em_text.h b/include/linux/tc_ematch/tc_em_text.h
new file mode 100644
index 000000000000..7cd43e99c7f5
--- /dev/null
+++ b/include/linux/tc_ematch/tc_em_text.h
@@ -0,0 +1,19 @@
+#ifndef __LINUX_TC_EM_TEXT_H
+#define __LINUX_TC_EM_TEXT_H
+
+#include <linux/pkt_cls.h>
+
+#define TC_EM_TEXT_ALGOSIZ      16
+
+struct tcf_em_text
+{
+        char            algo[TC_EM_TEXT_ALGOSIZ];
+        __u16           from_offset;
+        __u16           to_offset;
+        __u16           pattern_len;
+        __u8            from_layer:4;
+        __u8            to_layer:4;
+        __u8            pad;
+};
+
+#endif
diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index 97a7c9e03df5..dfd93d03f5d2 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -127,6 +127,7 @@ enum {
 #define TCP_WINDOW_CLAMP        10      /* Bound advertised window */
 #define TCP_INFO                11      /* Information about this connection. */
 #define TCP_QUICKACK            12      /* Block/reenable quick acks */
+#define TCP_CONGESTION          13      /* Congestion control algorithm */
 
 #define TCPI_OPT_TIMESTAMPS     1
 #define TCPI_OPT_SACK           2
@@ -203,13 +204,6 @@ struct tcp_sack_block {
         __u32   end_seq;
 };
 
-enum tcp_congestion_algo {
-        TCP_RENO=0,
-        TCP_VEGAS,
-        TCP_WESTWOOD,
-        TCP_BIC,
-};
-
 struct tcp_options_received {
 /*      PAWS/RTTM data  */
         long    ts_recent_stamp;/* Time we stored ts_recent (for aging) */
@@ -305,7 +299,7 @@ struct tcp_sock {
         __u8    reordering;     /* Packet reordering metric.            */
         __u8    frto_counter;   /* Number of new acks after RTO */
 
-        __u8    adv_cong;       /* Using Vegas, Westwood, or BIC */
+        __u8    unused;
         __u8    defer_accept;   /* User waits for some data after accept() */
 
 /* RTT measurement */
@@ -401,37 +395,10 @@ struct tcp_sock {
                 __u32   time;
         } rcvq_space;
 
-/* TCP Westwood structure */
-        struct {
-                __u32    bw_ns_est;        /* first bandwidth estimation..not too smoothed 8) */
-                __u32    bw_est;           /* bandwidth estimate */
-                __u32    rtt_win_sx;       /* here starts a new evaluation... */
-                __u32    bk;
-                __u32    snd_una;          /* used for evaluating the number of acked bytes */
-                __u32    cumul_ack;
-                __u32    accounted;
-                __u32    rtt;
-                __u32    rtt_min;          /* minimum observed RTT */
-        } westwood;
-
-/* Vegas variables */
-        struct {
-                __u32   beg_snd_nxt;    /* right edge during last RTT */
-                __u32   beg_snd_una;    /* left edge  during last RTT */
-                __u32   beg_snd_cwnd;   /* saves the size of the cwnd */
-                __u8    doing_vegas_now;/* if true, do vegas for this RTT */
-                __u16   cntRTT;         /* # of RTTs measured within last RTT */
-                __u32   minRTT;         /* min of RTTs measured within last RTT (in usec) */
-                __u32   baseRTT;        /* the min of all Vegas RTT measurements seen (in usec) */
-        } vegas;
-
-        /* BI TCP Parameters */
-        struct {
-                __u32   cnt;            /* increase cwnd by 1 after this number of ACKs */
-                __u32   last_max_cwnd;  /* last maximium snd_cwnd */
-                __u32   last_cwnd;      /* the last snd_cwnd */
-                __u32   last_stamp;     /* time when updated last_cwnd */
-        } bictcp;
+        /* Pluggable TCP congestion control hook */
+        struct tcp_congestion_ops *ca_ops;
+        u32     ca_priv[16];
+#define TCP_CA_PRIV_SIZE        (16*sizeof(u32))
 };
 
 static inline struct tcp_sock *tcp_sk(const struct sock *sk)
@@ -439,6 +406,11 @@ static inline struct tcp_sock *tcp_sk(const struct sock *sk)
         return (struct tcp_sock *)sk;
 }
 
+static inline void *tcp_ca(const struct tcp_sock *tp)
+{
+        return (void *) tp->ca_priv;
+}
+
 #endif
 
 #endif  /* _LINUX_TCP_H */
diff --git a/include/linux/tcp_diag.h b/include/linux/tcp_diag.h
index ceee962e1d15..7a5996743946 100644
--- a/include/linux/tcp_diag.h
+++ b/include/linux/tcp_diag.h
@@ -99,9 +99,10 @@ enum
         TCPDIAG_MEMINFO,
         TCPDIAG_INFO,
         TCPDIAG_VEGASINFO,
+        TCPDIAG_CONG,
 };
 
-#define TCPDIAG_MAX TCPDIAG_VEGASINFO
+#define TCPDIAG_MAX TCPDIAG_CONG
 
 
 /* TCPDIAG_MEM */
@@ -123,5 +124,4 @@ struct tcpvegas_info {
         __u32   tcpv_minrtt;
 };
 
-
 #endif /* _TCP_DIAG_H_ */
diff --git a/include/linux/textsearch.h b/include/linux/textsearch.h
new file mode 100644
index 000000000000..941f45ac117a
--- /dev/null
+++ b/include/linux/textsearch.h
@@ -0,0 +1,180 @@
+#ifndef __LINUX_TEXTSEARCH_H
+#define __LINUX_TEXTSEARCH_H
+
+#ifdef __KERNEL__
+
+#include <linux/types.h>
+#include <linux/list.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/err.h>
+
+struct ts_config;
+
+/**
+ * TS_AUTOLOAD - Automatically load textsearch modules when needed
+ */
+#define TS_AUTOLOAD     1
+
+/**
+ * struct ts_state - search state
+ * @offset: offset for next match
+ * @cb: control buffer, for persistant variables of get_next_block()
+ */
+struct ts_state
+{
+        unsigned int            offset;
+        char                    cb[40];
+};
+
+/**
+ * struct ts_ops - search module operations
+ * @name: name of search algorithm
+ * @init: initialization function to prepare a search
+ * @find: find the next occurrence of the pattern
+ * @destroy: destroy algorithm specific parts of a search configuration
+ * @get_pattern: return head of pattern
+ * @get_pattern_len: return length of pattern
+ * @owner: module reference to algorithm
+ */
+struct ts_ops
+{
+        const char              *name;
+        struct ts_config *      (*init)(const void *, unsigned int, int);
+        unsigned int            (*find)(struct ts_config *,
+                                        struct ts_state *);
+        void                    (*destroy)(struct ts_config *);
+        void *                  (*get_pattern)(struct ts_config *);
+        unsigned int            (*get_pattern_len)(struct ts_config *);
+        struct module           *owner;
+        struct list_head        list;
+};
+
+/**
+ * struct ts_config - search configuration
+ * @ops: operations of chosen algorithm
+ * @get_next_block: callback to fetch the next block to search in
+ * @finish: callback to finalize a search
+ */
+struct ts_config
+{
+        struct ts_ops           *ops;
+
+        /**
+         * get_next_block - fetch next block of data
+         * @consumed: number of bytes consumed by the caller
+         * @dst: destination buffer
+         * @conf: search configuration
+         * @state: search state
+         *
+         * Called repeatedly until 0 is returned. Must assign the
+         * head of the next block of data to &*dst and return the length
+         * of the block or 0 if at the end. consumed == 0 indicates
+         * a new search. May store/read persistant values in state->cb.
+         */
+        unsigned int            (*get_next_block)(unsigned int consumed,
+                                                  const u8 **dst,
+                                                  struct ts_config *conf,
+                                                  struct ts_state *state);
+
+        /**
+         * finish - finalize/clean a series of get_next_block() calls
+         * @conf: search configuration
+         * @state: search state
+         *
+         * Called after the last use of get_next_block(), may be used
+         * to cleanup any leftovers.
+         */
+        void                    (*finish)(struct ts_config *conf,
+                                          struct ts_state *state);
+};
+
+/**
+ * textsearch_next - continue searching for a pattern
+ * @conf: search configuration
+ * @state: search state
+ *
+ * Continues a search looking for more occurrences of the pattern.
+ * textsearch_find() must be called to find the first occurrence
+ * in order to reset the state.
+ *
+ * Returns the position of the next occurrence of the pattern or
+ * UINT_MAX if not match was found.
+ */ 
+static inline unsigned int textsearch_next(struct ts_config *conf,
+                                           struct ts_state *state)
+{
+        unsigned int ret = conf->ops->find(conf, state);
+
+        if (conf->finish)
+                conf->finish(conf, state);
+
+        return ret;
+}
+
+/**
+ * textsearch_find - start searching for a pattern
+ * @conf: search configuration
+ * @state: search state
+ *
+ * Returns the position of first occurrence of the pattern or
+ * UINT_MAX if no match was found.
+ */ 
+static inline unsigned int textsearch_find(struct ts_config *conf,
+                                           struct ts_state *state)
+{
+        state->offset = 0;
+        return textsearch_next(conf, state);
+}
+
+/**
+ * textsearch_get_pattern - return head of the pattern
+ * @conf: search configuration
+ */
+static inline void *textsearch_get_pattern(struct ts_config *conf)
+{
+        return conf->ops->get_pattern(conf);
+}
+
+/**
+ * textsearch_get_pattern_len - return length of the pattern
+ * @conf: search configuration
+ */
+static inline unsigned int textsearch_get_pattern_len(struct ts_config *conf)
+{
+        return conf->ops->get_pattern_len(conf);
+}
+
+extern int textsearch_register(struct ts_ops *);
+extern int textsearch_unregister(struct ts_ops *);
+extern struct ts_config *textsearch_prepare(const char *, const void *,
+                                            unsigned int, int, int);
+extern void textsearch_destroy(struct ts_config *conf);
+extern unsigned int textsearch_find_continuous(struct ts_config *,
+                                               struct ts_state *,
+                                               const void *, unsigned int);
+
+
+#define TS_PRIV_ALIGNTO 8
+#define TS_PRIV_ALIGN(len) (((len) + TS_PRIV_ALIGNTO-1) & ~(TS_PRIV_ALIGNTO-1))
+
+static inline struct ts_config *alloc_ts_config(size_t payload, int gfp_mask)
+{
+        struct ts_config *conf;
+
+        conf = kmalloc(TS_PRIV_ALIGN(sizeof(*conf)) + payload, gfp_mask);
+        if (conf == NULL)
+                return ERR_PTR(-ENOMEM);
+
+        memset(conf, 0, TS_PRIV_ALIGN(sizeof(*conf)) + payload);
+        return conf;
+}
+
+static inline void *ts_config_priv(struct ts_config *conf)
+{
+        return ((u8 *) conf + TS_PRIV_ALIGN(sizeof(struct ts_config)));
+}
+
+#endif /* __KERNEL__ */
+
+#endif
diff --git a/include/linux/textsearch_fsm.h b/include/linux/textsearch_fsm.h
new file mode 100644
index 000000000000..fdfa078c66e5
--- /dev/null
+++ b/include/linux/textsearch_fsm.h
@@ -0,0 +1,48 @@
+#ifndef __LINUX_TEXTSEARCH_FSM_H
+#define __LINUX_TEXTSEARCH_FSM_H
+
+#include <linux/types.h>
+
+enum {
+        TS_FSM_SPECIFIC,        /* specific character */
+        TS_FSM_WILDCARD,        /* any character */
+        TS_FSM_DIGIT,           /* isdigit() */
+        TS_FSM_XDIGIT,          /* isxdigit() */
+        TS_FSM_PRINT,           /* isprint() */
+        TS_FSM_ALPHA,           /* isalpha() */
+        TS_FSM_ALNUM,           /* isalnum() */
+        TS_FSM_ASCII,           /* isascii() */
+        TS_FSM_CNTRL,           /* iscntrl() */
+        TS_FSM_GRAPH,           /* isgraph() */
+        TS_FSM_LOWER,           /* islower() */
+        TS_FSM_UPPER,           /* isupper() */
+        TS_FSM_PUNCT,           /* ispunct() */
+        TS_FSM_SPACE,           /* isspace() */
+        __TS_FSM_TYPE_MAX,
+};
+#define TS_FSM_TYPE_MAX (__TS_FSM_TYPE_MAX - 1)
+
+enum {
+        TS_FSM_SINGLE,          /* 1 occurrence */
+        TS_FSM_PERHAPS,         /* 1 or 0 occurrence */
+        TS_FSM_ANY,             /* 0..n occurrences */
+        TS_FSM_MULTI,           /* 1..n occurrences */
+        TS_FSM_HEAD_IGNORE,     /* 0..n ignored occurrences at head */
+        __TS_FSM_RECUR_MAX,
+};
+#define TS_FSM_RECUR_MAX (__TS_FSM_RECUR_MAX - 1)
+
+/**
+ * struct ts_fsm_token - state machine token (state)
+ * @type: type of token
+ * @recur: number of recurrences
+ * @value: character value for TS_FSM_SPECIFIC
+ */
+struct ts_fsm_token
+{
+        __u16           type;
+        __u8            recur;
+        __u8            value;
+};
+
+#endif
diff --git a/include/linux/timer.h b/include/linux/timer.h
index 90db1cc62ddd..221f81ac2002 100644
--- a/include/linux/timer.h
+++ b/include/linux/timer.h
@@ -6,45 +6,33 @@
 #include <linux/spinlock.h>
 #include <linux/stddef.h>
 
-struct tvec_t_base_s;
+struct timer_base_s;
 
 struct timer_list {
         struct list_head entry;
         unsigned long expires;
 
-        spinlock_t lock;
         unsigned long magic;
 
         void (*function)(unsigned long);
         unsigned long data;
 
-        struct tvec_t_base_s *base;
+        struct timer_base_s *base;
 };
 
 #define TIMER_MAGIC     0x4b87ad6e
 
+extern struct timer_base_s __init_timer_base;
+
 #define TIMER_INITIALIZER(_function, _expires, _data) {         \
                 .function = (_function),                        \
                 .expires = (_expires),                          \
                 .data = (_data),                                \
-                .base = NULL,                                   \
+                .base = &__init_timer_base,                     \
                 .magic = TIMER_MAGIC,                           \
-                .lock = SPIN_LOCK_UNLOCKED,                     \
         }
 
-/***
- * init_timer - initialize a timer.
- * @timer: the timer to be initialized
- *
- * init_timer() must be done to a timer prior calling *any* of the
- * other timer functions.
- */
-static inline void init_timer(struct timer_list * timer)
-{
-        timer->base = NULL;
-        timer->magic = TIMER_MAGIC;
-        spin_lock_init(&timer->lock);
-}
+void fastcall init_timer(struct timer_list * timer);
 
 /***
  * timer_pending - is a timer pending?
@@ -58,7 +46,7 @@ static inline void init_timer(struct timer_list * timer)
  */
 static inline int timer_pending(const struct timer_list * timer)
 {
-        return timer->base != NULL;
+        return timer->entry.next != NULL;
 }
 
 extern void add_timer_on(struct timer_list *timer, int cpu);
@@ -88,13 +76,15 @@ static inline void add_timer(struct timer_list * timer)
 }
 
 #ifdef CONFIG_SMP
+  extern int try_to_del_timer_sync(struct timer_list *timer);
   extern int del_timer_sync(struct timer_list *timer);
-  extern int del_singleshot_timer_sync(struct timer_list *timer);
 #else
-# define del_timer_sync(t) del_timer(t)
-# define del_singleshot_timer_sync(t) del_timer(t)
+# define try_to_del_timer_sync(t)       del_timer(t)
+# define del_timer_sync(t)              del_timer(t)
 #endif
 
+#define del_singleshot_timer_sync(t) del_timer_sync(t)
+
 extern void init_timers(void);
 extern void run_local_timers(void);
 extern void it_real_fn(unsigned long);
diff --git a/include/linux/tty.h b/include/linux/tty.h
index 1b76106272d3..59ff42c629ec 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -345,6 +345,7 @@ extern int tty_check_change(struct tty_struct * tty);
 extern void stop_tty(struct tty_struct * tty);
 extern void start_tty(struct tty_struct * tty);
 extern int tty_register_ldisc(int disc, struct tty_ldisc *new_ldisc);
+extern int tty_unregister_ldisc(int disc);
 extern int tty_register_driver(struct tty_driver *driver);
 extern int tty_unregister_driver(struct tty_driver *driver);
 extern void tty_register_device(struct tty_driver *driver, unsigned index, struct device *dev);
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 3d508bf08402..eb282b581546 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -290,7 +290,7 @@ struct usb_bus {
         struct class_device *class_dev; /* class device for this bus */
         struct kref kref;               /* handles reference counting this bus */
         void (*release)(struct usb_bus *bus);   /* function to destroy this bus's memory */
-#if defined(CONFIG_USB_MON) || defined(CONFIG_USB_MON_MODULE)
+#if defined(CONFIG_USB_MON)
         struct mon_bus *mon_bus;        /* non-null when associated */
         int monitored;                  /* non-zero when monitored */
 #endif
diff --git a/include/linux/wait.h b/include/linux/wait.h
index c9486c3efb4a..d38c9fecdc36 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -33,7 +33,7 @@ int default_wake_function(wait_queue_t *wait, unsigned mode, int sync, void *key
 struct __wait_queue {
         unsigned int flags;
 #define WQ_FLAG_EXCLUSIVE       0x01
-        struct task_struct * task;
+        void *private;
         wait_queue_func_t func;
         struct list_head task_list;
 };
@@ -60,7 +60,7 @@ typedef struct __wait_queue_head wait_queue_head_t;
  */
 
 #define __WAITQUEUE_INITIALIZER(name, tsk) {                            \
-        .task           = tsk,                                          \
+        .private        = tsk,                                          \
         .func           = default_wake_function,                        \
         .task_list      = { NULL, NULL } }
 
@@ -86,7 +86,7 @@ static inline void init_waitqueue_head(wait_queue_head_t *q)
 static inline void init_waitqueue_entry(wait_queue_t *q, struct task_struct *p)
 {
         q->flags = 0;
-        q->task = p;
+        q->private = p;
         q->func = default_wake_function;
 }
 
@@ -94,7 +94,7 @@ static inline void init_waitqueue_func_entry(wait_queue_t *q,
                                         wait_queue_func_t func)
 {
         q->flags = 0;
-        q->task = NULL;
+        q->private = NULL;
         q->func = func;
 }
 
@@ -110,7 +110,7 @@ static inline int waitqueue_active(wait_queue_head_t *q)
  * aio specifies a wait queue entry with an async notification
  * callback routine, not associated with any task.
  */
-#define is_sync_wait(wait)      (!(wait) || ((wait)->task))
+#define is_sync_wait(wait)      (!(wait) || ((wait)->private))
 
 extern void FASTCALL(add_wait_queue(wait_queue_head_t *q, wait_queue_t * wait));
 extern void FASTCALL(add_wait_queue_exclusive(wait_queue_head_t *q, wait_queue_t * wait));
@@ -384,7 +384,7 @@ int wake_bit_function(wait_queue_t *wait, unsigned mode, int sync, void *key);
 
 #define DEFINE_WAIT(name)                                               \
         wait_queue_t name = {                                           \
-                .task           = current,                              \
+                .private        = current,                              \
                 .func           = autoremove_wake_function,             \
                 .task_list      = LIST_HEAD_INIT((name).task_list),     \
         }
@@ -393,7 +393,7 @@ int wake_bit_function(wait_queue_t *wait, unsigned mode, int sync, void *key);
         struct wait_bit_queue name = {                                  \
                 .key = __WAIT_BIT_KEY_INITIALIZER(word, bit),           \
                 .wait   = {                                             \
-                        .task           = current,                      \
+                        .private        = current,                      \
                         .func           = wake_bit_function,            \
                         .task_list      =                               \
                                 LIST_HEAD_INIT((name).wait.task_list),  \
@@ -402,7 +402,7 @@ int wake_bit_function(wait_queue_t *wait, unsigned mode, int sync, void *key);
 
 #define init_wait(wait)                                                 \
         do {                                                            \
-                (wait)->task = current;                                 \
+                (wait)->private = current;                              \
                 (wait)->func = autoremove_wake_function;                \
                 INIT_LIST_HEAD(&(wait)->task_list);                     \
         } while (0)
diff --git a/include/media/audiochip.h b/include/media/audiochip.h
index d3e9e30608dc..f345a61c3bdb 100644
--- a/include/media/audiochip.h
+++ b/include/media/audiochip.h
@@ -1,3 +1,7 @@
+/*
+ * $Id: audiochip.h,v 1.3 2005/06/12 04:19:19 mchehab Exp $
+ */
+
 #ifndef AUDIOCHIP_H
 #define AUDIOCHIP_H
 
diff --git a/include/media/id.h b/include/media/id.h
index 1b0320dc8f73..a39a6423914b 100644
--- a/include/media/id.h
+++ b/include/media/id.h
@@ -1,3 +1,7 @@
+/*
+ * $Id: id.h,v 1.4 2005/06/12 04:19:19 mchehab Exp $
+ */
+
 /* FIXME: this temporarely, until these are included in linux/i2c-id.h */
 
 /* drivers */
diff --git a/include/media/ir-common.h b/include/media/ir-common.h
index 62c963a52d86..698670547f16 100644
--- a/include/media/ir-common.h
+++ b/include/media/ir-common.h
@@ -1,5 +1,5 @@
 /*
- * $Id: ir-common.h,v 1.8 2005/02/22 12:28:40 kraxel Exp $
+ * $Id: ir-common.h,v 1.9 2005/05/15 19:01:26 mchehab Exp $
  *
  * some common structs and functions to handle infrared remotes via
  * input layer ...
@@ -50,6 +50,7 @@ extern IR_KEYTAB_TYPE ir_codes_rc5_tv[IR_KEYTAB_SIZE];
 extern IR_KEYTAB_TYPE ir_codes_winfast[IR_KEYTAB_SIZE];
 extern IR_KEYTAB_TYPE ir_codes_empty[IR_KEYTAB_SIZE];
 extern IR_KEYTAB_TYPE ir_codes_hauppauge_new[IR_KEYTAB_SIZE];
+extern IR_KEYTAB_TYPE ir_codes_pixelview[IR_KEYTAB_SIZE];
 
 void ir_input_init(struct input_dev *dev, struct ir_input_state *ir,
                    int ir_type, IR_KEYTAB_TYPE *ir_codes);
diff --git a/include/media/tuner.h b/include/media/tuner.h
index 156a9c51ffec..2dd8310901e8 100644
--- a/include/media/tuner.h
+++ b/include/media/tuner.h
@@ -25,6 +25,8 @@
 
 #include "id.h"
 
+#define ADDR_UNSET (255)
+
 #define TUNER_TEMIC_PAL     0        /* 4002 FH5 (3X 7756, 9483) */
 #define TUNER_PHILIPS_PAL_I 1
 #define TUNER_PHILIPS_NTSC  2
@@ -98,12 +100,23 @@
 #define TUNER_PHILIPS_FQ1216AME_MK4 56 /* Hauppauge PVR-150 PAL */
 #define TUNER_PHILIPS_FQ1236A_MK4 57   /* Hauppauge PVR-500MCE NTSC */
 
+#define TUNER_YMEC_TVF_8531MF 58
+#define TUNER_YMEC_TVF_5533MF 59        /* Pixelview Pro Ultra NTSC */
+#define TUNER_THOMSON_DTT7611 60
+#define TUNER_TENA_9533_DI    61
+#define TUNER_TEA5767         62        /* Only FM Radio Tuner */
+
+#define TEA5767_TUNER_NAME "Philips TEA5767HN FM Radio"
+
+#define TUNER_THOMSON_DTT7611    60
+
 #define NOTUNER 0
 #define PAL     1       /* PAL_BG */
 #define PAL_I   2
 #define NTSC    3
 #define SECAM   4
 #define ATSC    5
+#define RADIO   6
 
 #define NoTuner 0
 #define Philips 1
@@ -119,10 +132,20 @@
 #define TCL     11
 #define THOMSON 12
 
+enum v4l_radio_tuner {
+        TEA5767_LOW_LO_32768    = 0,
+        TEA5767_HIGH_LO_32768   = 1,
+        TEA5767_LOW_LO_13MHz    = 2,
+        TEA5767_HIGH_LO_13MHz   = 3,
+};
+
+
 #define TUNER_SET_TYPE               _IOW('t',1,int)    /* set tuner type */
 #define TUNER_SET_TVFREQ             _IOW('t',2,int)    /* set tv freq */
+#define TUNER_SET_TYPE_ADDR          _IOW('T',3,int)    /* set tuner type and I2C addr */
 
 #define  TDA9887_SET_CONFIG          _IOW('t',5,int)
+
 /* tv card specific */
 # define TDA9887_PRESENT             (1<<0)
 # define TDA9887_PORT1_INACTIVE      (1<<1)
@@ -143,6 +166,12 @@
 #define I2C_ADDR_TDA8290        0x4b
 #define I2C_ADDR_TDA8275        0x61
 
+struct tuner_addr {
+        enum v4l2_tuner_type    v4l2_tuner;
+        unsigned int            type;
+        unsigned short          addr;
+};
+
 struct tuner {
         /* device */
         struct i2c_client i2c;
diff --git a/include/media/tveeprom.h b/include/media/tveeprom.h
index 627603e561a6..5c4fe30e8d1d 100644
--- a/include/media/tveeprom.h
+++ b/include/media/tveeprom.h
@@ -1,3 +1,7 @@
+/*
+ * $Id: tveeprom.h,v 1.2 2005/06/12 04:19:19 mchehab Exp $
+ */
+
 struct tveeprom {
         u32 has_radio;
 
diff --git a/include/net/sctp/sm.h b/include/net/sctp/sm.h
index a53e08a45e32..88d9fe5975d5 100644
--- a/include/net/sctp/sm.h
+++ b/include/net/sctp/sm.h
@@ -131,7 +131,6 @@ sctp_state_fn_t sctp_sf_do_ecne;
 sctp_state_fn_t sctp_sf_ootb;
 sctp_state_fn_t sctp_sf_pdiscard;
 sctp_state_fn_t sctp_sf_violation;
-sctp_state_fn_t sctp_sf_violation_chunklen;
 sctp_state_fn_t sctp_sf_discard_chunk;
 sctp_state_fn_t sctp_sf_do_5_2_1_siminit;
 sctp_state_fn_t sctp_sf_do_5_2_2_dupinit;
@@ -259,11 +258,6 @@ struct sctp_chunk *sctp_make_fwdtsn(const struct sctp_association *asoc,
 void sctp_chunk_assign_tsn(struct sctp_chunk *);
 void sctp_chunk_assign_ssn(struct sctp_chunk *);
 
-sctp_disposition_t  sctp_stop_t1_and_abort(sctp_cmd_seq_t *commands,
-                                           __u16 error,
-                                           const struct sctp_association *asoc,
-                                           struct sctp_transport *transport);
-
 /* Prototypes for statetable processing. */
 
 int sctp_do_sm(sctp_event_t event_type, sctp_subtype_t subtype,
diff --git a/include/net/tcp.h b/include/net/tcp.h
index f730935b824a..ec9e20c27179 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -505,25 +505,6 @@ static __inline__ int tcp_sk_listen_hashfn(struct sock *sk)
 #else
 # define TCP_TW_RECYCLE_TICK (12+2-TCP_TW_RECYCLE_SLOTS_LOG)
 #endif
-
-#define BICTCP_BETA_SCALE    1024       /* Scale factor beta calculation
-                                         * max_cwnd = snd_cwnd * beta
-                                         */
-#define BICTCP_MAX_INCREMENT 32         /*
-                                         * Limit on the amount of
-                                         * increment allowed during
-                                         * binary search.
-                                         */
-#define BICTCP_FUNC_OF_MIN_INCR 11      /*
-                                         * log(B/Smin)/log(B/(B-1))+1,
-                                         * Smin:min increment
-                                         * B:log factor
-                                         */
-#define BICTCP_B                4        /*
-                                          * In binary search,
-                                          * go to point (max+min)/N
-                                          */
-
 /*
  *      TCP option
  */
@@ -596,16 +577,7 @@ extern int sysctl_tcp_adv_win_scale;
 extern int sysctl_tcp_tw_reuse;
 extern int sysctl_tcp_frto;
 extern int sysctl_tcp_low_latency;
-extern int sysctl_tcp_westwood;
-extern int sysctl_tcp_vegas_cong_avoid;
-extern int sysctl_tcp_vegas_alpha;
-extern int sysctl_tcp_vegas_beta;
-extern int sysctl_tcp_vegas_gamma;
 extern int sysctl_tcp_nometrics_save;
-extern int sysctl_tcp_bic;
-extern int sysctl_tcp_bic_fast_convergence;
-extern int sysctl_tcp_bic_low_window;
-extern int sysctl_tcp_bic_beta;
 extern int sysctl_tcp_moderate_rcvbuf;
 extern int sysctl_tcp_tso_win_divisor;
 
@@ -1136,6 +1108,82 @@ static inline void tcp_packets_out_dec(struct tcp_sock *tp,
         tp->packets_out -= tcp_skb_pcount(skb);
 }
 
+/* Events passed to congestion control interface */
+enum tcp_ca_event {
+        CA_EVENT_TX_START,      /* first transmit when no packets in flight */
+        CA_EVENT_CWND_RESTART,  /* congestion window restart */
+        CA_EVENT_COMPLETE_CWR,  /* end of congestion recovery */
+        CA_EVENT_FRTO,          /* fast recovery timeout */
+        CA_EVENT_LOSS,          /* loss timeout */
+        CA_EVENT_FAST_ACK,      /* in sequence ack */
+        CA_EVENT_SLOW_ACK,      /* other ack */
+};
+
+/*
+ * Interface for adding new TCP congestion control handlers
+ */
+#define TCP_CA_NAME_MAX 16
+struct tcp_congestion_ops {
+        struct list_head        list;
+
+        /* initialize private data (optional) */
+        void (*init)(struct tcp_sock *tp);
+        /* cleanup private data  (optional) */
+        void (*release)(struct tcp_sock *tp);
+
+        /* return slow start threshold (required) */
+        u32 (*ssthresh)(struct tcp_sock *tp);
+        /* lower bound for congestion window (optional) */
+        u32 (*min_cwnd)(struct tcp_sock *tp);
+        /* do new cwnd calculation (required) */
+        void (*cong_avoid)(struct tcp_sock *tp, u32 ack,
+                           u32 rtt, u32 in_flight, int good_ack);
+        /* round trip time sample per acked packet (optional) */
+        void (*rtt_sample)(struct tcp_sock *tp, u32 usrtt);
+        /* call before changing ca_state (optional) */
+        void (*set_state)(struct tcp_sock *tp, u8 new_state);
+        /* call when cwnd event occurs (optional) */
+        void (*cwnd_event)(struct tcp_sock *tp, enum tcp_ca_event ev);
+        /* new value of cwnd after loss (optional) */
+        u32  (*undo_cwnd)(struct tcp_sock *tp);
+        /* hook for packet ack accounting (optional) */
+        void (*pkts_acked)(struct tcp_sock *tp, u32 num_acked);
+        /* get info for tcp_diag (optional) */
+        void (*get_info)(struct tcp_sock *tp, u32 ext, struct sk_buff *skb);
+
+        char            name[TCP_CA_NAME_MAX];
+        struct module   *owner;
+};
+
+extern int tcp_register_congestion_control(struct tcp_congestion_ops *type);
+extern void tcp_unregister_congestion_control(struct tcp_congestion_ops *type);
+
+extern void tcp_init_congestion_control(struct tcp_sock *tp);
+extern void tcp_cleanup_congestion_control(struct tcp_sock *tp);
+extern int tcp_set_default_congestion_control(const char *name);
+extern void tcp_get_default_congestion_control(char *name);
+extern int tcp_set_congestion_control(struct tcp_sock *tp, const char *name);
+
+extern struct tcp_congestion_ops tcp_init_congestion_ops;
+extern u32 tcp_reno_ssthresh(struct tcp_sock *tp);
+extern void tcp_reno_cong_avoid(struct tcp_sock *tp, u32 ack,
+                                u32 rtt, u32 in_flight, int flag);
+extern u32 tcp_reno_min_cwnd(struct tcp_sock *tp);
+extern struct tcp_congestion_ops tcp_reno;
+
+static inline void tcp_set_ca_state(struct tcp_sock *tp, u8 ca_state)
+{
+        if (tp->ca_ops->set_state)
+                tp->ca_ops->set_state(tp, ca_state);
+        tp->ca_state = ca_state;
+}
+
+static inline void tcp_ca_event(struct tcp_sock *tp, enum tcp_ca_event event)
+{
+        if (tp->ca_ops->cwnd_event)
+                tp->ca_ops->cwnd_event(tp, event);
+}
+
 /* This determines how many packets are "in the network" to the best
  * of our knowledge.  In many cases it is conservative, but where
  * detailed information is available from the receiver (via SACK
@@ -1155,91 +1203,6 @@ static __inline__ unsigned int tcp_packets_in_flight(const struct tcp_sock *tp)
         return (tp->packets_out - tp->left_out + tp->retrans_out);
 }
 
-/*
- * Which congestion algorithim is in use on the connection.
- */
-#define tcp_is_vegas(__tp)      ((__tp)->adv_cong == TCP_VEGAS)
-#define tcp_is_westwood(__tp)   ((__tp)->adv_cong == TCP_WESTWOOD)
-#define tcp_is_bic(__tp)        ((__tp)->adv_cong == TCP_BIC)
-
-/* Recalculate snd_ssthresh, we want to set it to:
- *
- * Reno:
- *      one half the current congestion window, but no
- *      less than two segments
- *
- * BIC:
- *      behave like Reno until low_window is reached,
- *      then increase congestion window slowly
- */
-static inline __u32 tcp_recalc_ssthresh(struct tcp_sock *tp)
-{
-        if (tcp_is_bic(tp)) {
-                if (sysctl_tcp_bic_fast_convergence &&
-                    tp->snd_cwnd < tp->bictcp.last_max_cwnd)
-                        tp->bictcp.last_max_cwnd = (tp->snd_cwnd * 
-                                                    (BICTCP_BETA_SCALE
-                                                     + sysctl_tcp_bic_beta))
-                                / (2 * BICTCP_BETA_SCALE);
-                else
-                        tp->bictcp.last_max_cwnd = tp->snd_cwnd;
-
-                if (tp->snd_cwnd > sysctl_tcp_bic_low_window)
-                        return max((tp->snd_cwnd * sysctl_tcp_bic_beta)
-                                   / BICTCP_BETA_SCALE, 2U);
-        }
-
-        return max(tp->snd_cwnd >> 1U, 2U);
-}
-
-/* Stop taking Vegas samples for now. */
-#define tcp_vegas_disable(__tp) ((__tp)->vegas.doing_vegas_now = 0)
-    
-static inline void tcp_vegas_enable(struct tcp_sock *tp)
-{
-        /* There are several situations when we must "re-start" Vegas:
-         *
-         *  o when a connection is established
-         *  o after an RTO
-         *  o after fast recovery
-         *  o when we send a packet and there is no outstanding
-         *    unacknowledged data (restarting an idle connection)
-         *
-         * In these circumstances we cannot do a Vegas calculation at the
-         * end of the first RTT, because any calculation we do is using
-         * stale info -- both the saved cwnd and congestion feedback are
-         * stale.
-         *
-         * Instead we must wait until the completion of an RTT during
-         * which we actually receive ACKs.
-         */
-    
-        /* Begin taking Vegas samples next time we send something. */
-        tp->vegas.doing_vegas_now = 1;
-     
-        /* Set the beginning of the next send window. */
-        tp->vegas.beg_snd_nxt = tp->snd_nxt;
-
-        tp->vegas.cntRTT = 0;
-        tp->vegas.minRTT = 0x7fffffff;
-}
-
-/* Should we be taking Vegas samples right now? */
-#define tcp_vegas_enabled(__tp) ((__tp)->vegas.doing_vegas_now)
-
-extern void tcp_ca_init(struct tcp_sock *tp);
-
-static inline void tcp_set_ca_state(struct tcp_sock *tp, u8 ca_state)
-{
-        if (tcp_is_vegas(tp)) {
-                if (ca_state == TCP_CA_Open) 
-                        tcp_vegas_enable(tp);
-                else
-                        tcp_vegas_disable(tp);
-        }
-        tp->ca_state = ca_state;
-}
-
 /* If cwnd > ssthresh, we may raise ssthresh to be half-way to cwnd.
  * The exception is rate halving phase, when cwnd is decreasing towards
  * ssthresh.
@@ -1288,7 +1251,7 @@ static inline void tcp_cwnd_validate(struct sock *sk, struct tcp_sock *tp)
 static inline void __tcp_enter_cwr(struct tcp_sock *tp)
 {
         tp->undo_marker = 0;
-        tp->snd_ssthresh = tcp_recalc_ssthresh(tp);
+        tp->snd_ssthresh = tp->ca_ops->ssthresh(tp);
         tp->snd_cwnd = min(tp->snd_cwnd,
                            tcp_packets_in_flight(tp) + 1U);
         tp->snd_cwnd_cnt = 0;
@@ -1876,52 +1839,4 @@ struct tcp_iter_state {
 extern int tcp_proc_register(struct tcp_seq_afinfo *afinfo);
 extern void tcp_proc_unregister(struct tcp_seq_afinfo *afinfo);
 
-/* TCP Westwood functions and constants */
-
-#define TCP_WESTWOOD_INIT_RTT  (20*HZ)           /* maybe too conservative?! */
-#define TCP_WESTWOOD_RTT_MIN   (HZ/20)           /* 50ms */
-
-static inline void tcp_westwood_update_rtt(struct tcp_sock *tp, __u32 rtt_seq)
-{
-        if (tcp_is_westwood(tp))
-                tp->westwood.rtt = rtt_seq;
-}
-
-static inline __u32 __tcp_westwood_bw_rttmin(const struct tcp_sock *tp)
-{
-        return max((tp->westwood.bw_est) * (tp->westwood.rtt_min) /
-                   (__u32) (tp->mss_cache_std),
-                   2U);
-}
-
-static inline __u32 tcp_westwood_bw_rttmin(const struct tcp_sock *tp)
-{
-        return tcp_is_westwood(tp) ? __tcp_westwood_bw_rttmin(tp) : 0;
-}
-
-static inline int tcp_westwood_ssthresh(struct tcp_sock *tp)
-{
-        __u32 ssthresh = 0;
-
-        if (tcp_is_westwood(tp)) {
-                ssthresh = __tcp_westwood_bw_rttmin(tp);
-                if (ssthresh)
-                        tp->snd_ssthresh = ssthresh;  
-        }
-
-        return (ssthresh != 0);
-}
-
-static inline int tcp_westwood_cwnd(struct tcp_sock *tp)
-{
-        __u32 cwnd = 0;
-
-        if (tcp_is_westwood(tp)) {
-                cwnd = __tcp_westwood_bw_rttmin(tp);
-                if (cwnd)
-                        tp->snd_cwnd = cwnd;
-        }
-
-        return (cwnd != 0);
-}
 #endif  /* _TCP_H */
diff --git a/include/pcmcia/ss.h b/include/pcmcia/ss.h
index 6d3413a56708..67b867f31fe4 100644
--- a/include/pcmcia/ss.h
+++ b/include/pcmcia/ss.h
@@ -77,6 +77,11 @@ extern socket_state_t dead_socket;
 /* Use this just for bridge windows */
 #define MAP_IOSPACE     0x20
 
+/* power hook operations */
+#define HOOK_POWER_PRE  0x01
+#define HOOK_POWER_POST 0x02
+
+
 typedef struct pccard_io_map {
     u_char      map;
     u_char      flags;
@@ -222,6 +227,9 @@ struct pcmcia_socket {
         /* Zoom video behaviour is so chip specific its not worth adding
            this to _ops */
         void                            (*zoom_video)(struct pcmcia_socket *, int);
+
+        /* so is power hook */
+        int (*power_hook)(struct pcmcia_socket *sock, int operation);
                            
         /* state thread */
         struct semaphore                skt_sem;        /* protects socket h/w state */
diff --git a/include/scsi/sg_request.h b/include/scsi/sg_request.h
new file mode 100644
index 000000000000..57ff525bdd3b
--- /dev/null
+++ b/include/scsi/sg_request.h
@@ -0,0 +1,26 @@
+typedef struct scsi_request Scsi_Request;
+
+static Scsi_Request *dummy_cmdp;        /* only used for sizeof */
+
+typedef struct sg_scatter_hold { /* holding area for scsi scatter gather info */
+        unsigned short k_use_sg; /* Count of kernel scatter-gather pieces */
+        unsigned short sglist_len; /* size of malloc'd scatter-gather list ++ */
+        unsigned bufflen;       /* Size of (aggregate) data buffer */
+        unsigned b_malloc_len;  /* actual len malloc'ed in buffer */
+        void *buffer;           /* Data buffer or scatter list (k_use_sg>0) */
+        char dio_in_use;        /* 0->indirect IO (or mmap), 1->dio */
+        unsigned char cmd_opcode; /* first byte of command */
+} Sg_scatter_hold;
+
+typedef struct sg_request {     /* SG_MAX_QUEUE requests outstanding per file */
+        Scsi_Request *my_cmdp;  /* != 0  when request with lower levels */
+        struct sg_request *nextrp;      /* NULL -> tail request (slist) */
+        struct sg_fd *parentfp; /* NULL -> not in use */
+        Sg_scatter_hold data;   /* hold buffer, perhaps scatter list */
+        sg_io_hdr_t header;     /* scsi command+info, see <scsi/sg.h> */
+        unsigned char sense_b[sizeof (dummy_cmdp->sr_sense_buffer)];
+        char res_used;          /* 1 -> using reserve buffer, 0 -> not ... */
+        char orphan;            /* 1 -> drop on sight, 0 -> normal */
+        char sg_io_owned;       /* 1 -> packet belongs to SG_IO */
+        volatile char done;     /* 0->before bh, 1->before read, 2->read */
+} Sg_request;
diff --git a/include/sound/core.h b/include/sound/core.h
index 9117c23e3a01..f8c4ef0aa352 100644
--- a/include/sound/core.h
+++ b/include/sound/core.h
@@ -292,6 +292,7 @@ void *snd_hidden_kcalloc(size_t n, size_t size, int flags);
 void snd_hidden_kfree(const void *obj);
 void *snd_hidden_vmalloc(unsigned long size);
 void snd_hidden_vfree(void *obj);
+char *snd_hidden_kstrdup(const char *s, int flags);
 #define kmalloc(size, flags) snd_hidden_kmalloc(size, flags)
 #define kcalloc(n, size, flags) snd_hidden_kcalloc(n, size, flags)
 #define kfree(obj) snd_hidden_kfree(obj)
@@ -301,6 +302,7 @@ void snd_hidden_vfree(void *obj);
 #define vmalloc_nocheck(size) snd_wrapper_vmalloc(size)
 #define kfree_nocheck(obj) snd_wrapper_kfree(obj)
 #define vfree_nocheck(obj) snd_wrapper_vfree(obj)
+#define kstrdup(s, flags)  snd_hidden_kstrdup(s, flags)
 #else
 #define snd_memory_init() /*NOP*/
 #define snd_memory_done() /*NOP*/
@@ -311,7 +313,6 @@ void snd_hidden_vfree(void *obj);
 #define kfree_nocheck(obj) kfree(obj)
 #define vfree_nocheck(obj) vfree(obj)
 #endif
-char *snd_kmalloc_strdup(const char *string, int flags);
 int copy_to_user_fromio(void __user *dst, const volatile void __iomem *src, size_t count);
 int copy_from_user_toio(volatile void __iomem *dst, const void __user *src, size_t count);