510 files changed, 4703 insertions, 3067 deletions

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 56a4df952fb0..22e58a99f38b 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -477,7 +477,7 @@ config ALPHA_BROKEN_IRQ_MASK
 
 config VGA_HOSE
         bool
-        depends on ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI
+        depends on VGA_CONSOLE && (ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI)
         default y
         help
           Support VGA on an arbitrary hose; needed for several platforms
diff --git a/arch/alpha/include/asm/atomic.h b/arch/alpha/include/asm/atomic.h
index f62251e82ffa..3bb7ffeae3bc 100644
--- a/arch/alpha/include/asm/atomic.h
+++ b/arch/alpha/include/asm/atomic.h
@@ -3,6 +3,7 @@
 
 #include <linux/types.h>
 #include <asm/barrier.h>
+#include <asm/cmpxchg.h>
 
 /*
  * Atomic operations that C can't guarantee us.  Useful for
@@ -168,73 +169,6 @@ static __inline__ long atomic64_sub_return(long i, atomic64_t * v)
         return result;
 }
 
-/*
- * Atomic exchange routines.
- */
-
-#define __ASM__MB
-#define ____xchg(type, args...)         __xchg ## type ## _local(args)
-#define ____cmpxchg(type, args...)      __cmpxchg ## type ## _local(args)
-#include <asm/xchg.h>
-
-#define xchg_local(ptr,x)                                               \
-  ({                                                                    \
-     __typeof__(*(ptr)) _x_ = (x);                                      \
-     (__typeof__(*(ptr))) __xchg_local((ptr), (unsigned long)_x_,       \
-                                       sizeof(*(ptr)));                 \
-  })
-
-#define cmpxchg_local(ptr, o, n)                                        \
-  ({                                                                    \
-     __typeof__(*(ptr)) _o_ = (o);                                      \
-     __typeof__(*(ptr)) _n_ = (n);                                      \
-     (__typeof__(*(ptr))) __cmpxchg_local((ptr), (unsigned long)_o_,    \
-                                          (unsigned long)_n_,           \
-                                          sizeof(*(ptr)));              \
-  })
-
-#define cmpxchg64_local(ptr, o, n)                                      \
-  ({                                                                    \
-        BUILD_BUG_ON(sizeof(*(ptr)) != 8);                              \
-        cmpxchg_local((ptr), (o), (n));                                 \
-  })
-
-#ifdef CONFIG_SMP
-#undef __ASM__MB
-#define __ASM__MB       "\tmb\n"
-#endif
-#undef ____xchg
-#undef ____cmpxchg
-#define ____xchg(type, args...)         __xchg ##type(args)
-#define ____cmpxchg(type, args...)      __cmpxchg ##type(args)
-#include <asm/xchg.h>
-
-#define xchg(ptr,x)                                                     \
-  ({                                                                    \
-     __typeof__(*(ptr)) _x_ = (x);                                      \
-     (__typeof__(*(ptr))) __xchg((ptr), (unsigned long)_x_,             \
-                                 sizeof(*(ptr)));                       \
-  })
-
-#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)));\
-  })
-
-#define cmpxchg64(ptr, o, n)                                            \
-  ({                                                                    \
-        BUILD_BUG_ON(sizeof(*(ptr)) != 8);                              \
-        cmpxchg((ptr), (o), (n));                                       \
-  })
-
-#undef __ASM__MB
-#undef ____cmpxchg
-
-#define __HAVE_ARCH_CMPXCHG 1
-
 #define atomic64_cmpxchg(v, old, new) (cmpxchg(&((v)->counter), old, new))
 #define atomic64_xchg(v, new) (xchg(&((v)->counter), new))
 
diff --git a/arch/alpha/include/asm/cmpxchg.h b/arch/alpha/include/asm/cmpxchg.h
new file mode 100644
index 000000000000..429e8cd0d78e
--- /dev/null
+++ b/arch/alpha/include/asm/cmpxchg.h
@@ -0,0 +1,71 @@
+#ifndef _ALPHA_CMPXCHG_H
+#define _ALPHA_CMPXCHG_H
+
+/*
+ * Atomic exchange routines.
+ */
+
+#define __ASM__MB
+#define ____xchg(type, args...)         __xchg ## type ## _local(args)
+#define ____cmpxchg(type, args...)      __cmpxchg ## type ## _local(args)
+#include <asm/xchg.h>
+
+#define xchg_local(ptr, x)                                              \
+({                                                                      \
+        __typeof__(*(ptr)) _x_ = (x);                                   \
+        (__typeof__(*(ptr))) __xchg_local((ptr), (unsigned long)_x_,    \
+                                       sizeof(*(ptr)));                 \
+})
+
+#define cmpxchg_local(ptr, o, n)                                        \
+({                                                                      \
+        __typeof__(*(ptr)) _o_ = (o);                                   \
+        __typeof__(*(ptr)) _n_ = (n);                                   \
+        (__typeof__(*(ptr))) __cmpxchg_local((ptr), (unsigned long)_o_, \
+                                          (unsigned long)_n_,           \
+                                          sizeof(*(ptr)));              \
+})
+
+#define cmpxchg64_local(ptr, o, n)                                      \
+({                                                                      \
+        BUILD_BUG_ON(sizeof(*(ptr)) != 8);                              \
+        cmpxchg_local((ptr), (o), (n));                                 \
+})
+
+#ifdef CONFIG_SMP
+#undef __ASM__MB
+#define __ASM__MB       "\tmb\n"
+#endif
+#undef ____xchg
+#undef ____cmpxchg
+#define ____xchg(type, args...)         __xchg ##type(args)
+#define ____cmpxchg(type, args...)      __cmpxchg ##type(args)
+#include <asm/xchg.h>
+
+#define xchg(ptr, x)                                                    \
+({                                                                      \
+        __typeof__(*(ptr)) _x_ = (x);                                   \
+        (__typeof__(*(ptr))) __xchg((ptr), (unsigned long)_x_,          \
+                                 sizeof(*(ptr)));                       \
+})
+
+#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)));\
+})
+
+#define cmpxchg64(ptr, o, n)                                            \
+({                                                                      \
+        BUILD_BUG_ON(sizeof(*(ptr)) != 8);                              \
+        cmpxchg((ptr), (o), (n));                                       \
+})
+
+#undef __ASM__MB
+#undef ____cmpxchg
+
+#define __HAVE_ARCH_CMPXCHG 1
+
+#endif /* _ALPHA_CMPXCHG_H */
diff --git a/arch/alpha/include/asm/dma-mapping.h b/arch/alpha/include/asm/dma-mapping.h
index 4567aca6fdd6..dfa32f061320 100644
--- a/arch/alpha/include/asm/dma-mapping.h
+++ b/arch/alpha/include/asm/dma-mapping.h
@@ -12,16 +12,22 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 
 #include <asm-generic/dma-mapping-common.h>
 
-static inline void *dma_alloc_coherent(struct device *dev, size_t size,
-                                       dma_addr_t *dma_handle, gfp_t gfp)
+#define dma_alloc_coherent(d,s,h,f)     dma_alloc_attrs(d,s,h,f,NULL)
+
+static inline void *dma_alloc_attrs(struct device *dev, size_t size,
+                                    dma_addr_t *dma_handle, gfp_t gfp,
+                                    struct dma_attrs *attrs)
 {
-        return get_dma_ops(dev)->alloc_coherent(dev, size, dma_handle, gfp);
+        return get_dma_ops(dev)->alloc(dev, size, dma_handle, gfp, attrs);
 }
 
-static inline void dma_free_coherent(struct device *dev, size_t size,
-                                     void *vaddr, dma_addr_t dma_handle)
+#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL)
+
+static inline void dma_free_attrs(struct device *dev, size_t size,
+                                  void *vaddr, dma_addr_t dma_handle,
+                                  struct dma_attrs *attrs)
 {
-        get_dma_ops(dev)->free_coherent(dev, size, vaddr, dma_handle);
+        get_dma_ops(dev)->free(dev, size, vaddr, dma_handle, attrs);
 }
 
 static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
diff --git a/arch/alpha/include/asm/rtc.h b/arch/alpha/include/asm/rtc.h
index 1f7fba671ae6..d70408d36677 100644
--- a/arch/alpha/include/asm/rtc.h
+++ b/arch/alpha/include/asm/rtc.h
@@ -1,14 +1,10 @@
 #ifndef _ALPHA_RTC_H
 #define _ALPHA_RTC_H
 
-#if defined(CONFIG_ALPHA_GENERIC)
+#if defined(CONFIG_ALPHA_MARVEL) && defined(CONFIG_SMP) \
+ || defined(CONFIG_ALPHA_GENERIC)
 # define get_rtc_time           alpha_mv.rtc_get_time
 # define set_rtc_time           alpha_mv.rtc_set_time
-#else
-# if defined(CONFIG_ALPHA_MARVEL) && defined(CONFIG_SMP)
-#  define get_rtc_time          marvel_get_rtc_time
-#  define set_rtc_time          marvel_set_rtc_time
-# endif
 #endif
 
 #include <asm-generic/rtc.h>
diff --git a/arch/alpha/include/asm/xchg.h b/arch/alpha/include/asm/xchg.h
index 1d1b436fbff2..0ca9724597c1 100644
--- a/arch/alpha/include/asm/xchg.h
+++ b/arch/alpha/include/asm/xchg.h
@@ -1,10 +1,10 @@
-#ifndef _ALPHA_ATOMIC_H
+#ifndef _ALPHA_CMPXCHG_H
 #error Do not include xchg.h directly!
 #else
 /*
  * xchg/xchg_local and cmpxchg/cmpxchg_local share the same code
  * except that local version do not have the expensive memory barrier.
- * So this file is included twice from asm/system.h.
+ * So this file is included twice from asm/cmpxchg.h.
  */
 
 /*
diff --git a/arch/alpha/kernel/core_tsunami.c b/arch/alpha/kernel/core_tsunami.c
index 5e7c28f92f19..61893d7bdda5 100644
--- a/arch/alpha/kernel/core_tsunami.c
+++ b/arch/alpha/kernel/core_tsunami.c
@@ -11,6 +11,7 @@
 #include <asm/core_tsunami.h>
 #undef __EXTERN_INLINE
 
+#include <linux/module.h>
 #include <linux/types.h>
 #include <linux/pci.h>
 #include <linux/sched.h>
diff --git a/arch/alpha/kernel/pci-noop.c b/arch/alpha/kernel/pci-noop.c
index 04eea4894ef3..df24b76f9246 100644
--- a/arch/alpha/kernel/pci-noop.c
+++ b/arch/alpha/kernel/pci-noop.c
@@ -108,7 +108,8 @@ sys_pciconfig_write(unsigned long bus, unsigned long dfn,
 }
 
 static void *alpha_noop_alloc_coherent(struct device *dev, size_t size,
-                                       dma_addr_t *dma_handle, gfp_t gfp)
+                                       dma_addr_t *dma_handle, gfp_t gfp,
+                                       struct dma_attrs *attrs)
 {
         void *ret;
 
@@ -123,7 +124,8 @@ static void *alpha_noop_alloc_coherent(struct device *dev, size_t size,
 }
 
 static void alpha_noop_free_coherent(struct device *dev, size_t size,
-                                     void *cpu_addr, dma_addr_t dma_addr)
+                                     void *cpu_addr, dma_addr_t dma_addr,
+                                     struct dma_attrs *attrs)
 {
         free_pages((unsigned long)cpu_addr, get_order(size));
 }
@@ -174,8 +176,8 @@ static int alpha_noop_set_mask(struct device *dev, u64 mask)
 }
 
 struct dma_map_ops alpha_noop_ops = {
-        .alloc_coherent         = alpha_noop_alloc_coherent,
-        .free_coherent          = alpha_noop_free_coherent,
+        .alloc                  = alpha_noop_alloc_coherent,
+        .free                   = alpha_noop_free_coherent,
         .map_page               = alpha_noop_map_page,
         .map_sg                 = alpha_noop_map_sg,
         .mapping_error          = alpha_noop_mapping_error,
diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c
index 43610804987d..cd634795aa9c 100644
--- a/arch/alpha/kernel/pci_iommu.c
+++ b/arch/alpha/kernel/pci_iommu.c
@@ -434,7 +434,8 @@ static void alpha_pci_unmap_page(struct device *dev, dma_addr_t dma_addr,
    else DMA_ADDRP is undefined.  */
 
 static void *alpha_pci_alloc_coherent(struct device *dev, size_t size,
-                                      dma_addr_t *dma_addrp, gfp_t gfp)
+                                      dma_addr_t *dma_addrp, gfp_t gfp,
+                                      struct dma_attrs *attrs)
 {
         struct pci_dev *pdev = alpha_gendev_to_pci(dev);
         void *cpu_addr;
@@ -478,7 +479,8 @@ try_again:
    DMA_ADDR past this call are illegal.  */
 
 static void alpha_pci_free_coherent(struct device *dev, size_t size,
-                                    void *cpu_addr, dma_addr_t dma_addr)
+                                    void *cpu_addr, dma_addr_t dma_addr,
+                                    struct dma_attrs *attrs)
 {
         struct pci_dev *pdev = alpha_gendev_to_pci(dev);
         pci_unmap_single(pdev, dma_addr, size, PCI_DMA_BIDIRECTIONAL);
@@ -952,8 +954,8 @@ static int alpha_pci_set_mask(struct device *dev, u64 mask)
 }
 
 struct dma_map_ops alpha_pci_ops = {
-        .alloc_coherent         = alpha_pci_alloc_coherent,
-        .free_coherent          = alpha_pci_free_coherent,
+        .alloc                  = alpha_pci_alloc_coherent,
+        .free                   = alpha_pci_free_coherent,
         .map_page               = alpha_pci_map_page,
         .unmap_page             = alpha_pci_unmap_page,
         .map_sg                 = alpha_pci_map_sg,
diff --git a/arch/alpha/kernel/signal.c b/arch/alpha/kernel/signal.c
index 6f7feb5db271..35f2ef44de12 100644
--- a/arch/alpha/kernel/signal.c
+++ b/arch/alpha/kernel/signal.c
@@ -120,12 +120,13 @@ SYSCALL_DEFINE5(rt_sigaction, int, sig, const struct sigaction __user *, act,
  */
 SYSCALL_DEFINE1(sigsuspend, old_sigset_t, mask)
 {
-        mask &= _BLOCKABLE;
-        spin_lock_irq(&current->sighand->siglock);
+        sigset_t blocked;
+
         current->saved_sigmask = current->blocked;
-        siginitset(&current->blocked, mask);
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
+
+        mask &= _BLOCKABLE;
+        siginitset(&blocked, mask);
+        set_current_blocked(&blocked);
 
         current->state = TASK_INTERRUPTIBLE;
         schedule();
@@ -238,10 +239,7 @@ do_sigreturn(struct sigcontext __user *sc, struct pt_regs *regs,
                 goto give_sigsegv;
 
         sigdelsetmask(&set, ~_BLOCKABLE);
-        spin_lock_irq(&current->sighand->siglock);
-        current->blocked = set;
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
+        set_current_blocked(&set);
 
         if (restore_sigcontext(sc, regs, sw))
                 goto give_sigsegv;
@@ -276,10 +274,7 @@ do_rt_sigreturn(struct rt_sigframe __user *frame, struct pt_regs *regs,
                 goto give_sigsegv;
 
         sigdelsetmask(&set, ~_BLOCKABLE);
-        spin_lock_irq(&current->sighand->siglock);
-        current->blocked = set;
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
+        set_current_blocked(&set);
 
         if (restore_sigcontext(&frame->uc.uc_mcontext, regs, sw))
                 goto give_sigsegv;
@@ -501,14 +496,8 @@ handle_signal(int sig, struct k_sigaction *ka, siginfo_t *info,
         else
                 ret = setup_frame(sig, ka, oldset, regs, sw);
 
-        if (ret == 0) {
-                spin_lock_irq(&current->sighand->siglock);
-                sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
-                if (!(ka->sa.sa_flags & SA_NODEFER)) 
-                        sigaddset(&current->blocked,sig);
-                recalc_sigpending();
-                spin_unlock_irq(&current->sighand->siglock);
-        }
+        if (ret == 0)
+                block_sigmask(ka, sig);
 
         return ret;
 }
diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c
index 4087a569b43b..50d438db1f6b 100644
--- a/arch/alpha/kernel/smp.c
+++ b/arch/alpha/kernel/smp.c
@@ -450,7 +450,7 @@ setup_smp(void)
                 smp_num_probed = 1;
         }
 
-        printk(KERN_INFO "SMP: %d CPUs probed -- cpu_present_map = %lx\n",
+        printk(KERN_INFO "SMP: %d CPUs probed -- cpu_present_mask = %lx\n",
                smp_num_probed, cpumask_bits(cpu_present_mask)[0]);
 }
 
diff --git a/arch/alpha/kernel/sys_marvel.c b/arch/alpha/kernel/sys_marvel.c
index 14a4b6a7cf59..407accc80877 100644
--- a/arch/alpha/kernel/sys_marvel.c
+++ b/arch/alpha/kernel/sys_marvel.c
@@ -317,7 +317,7 @@ marvel_init_irq(void)
 }
 
 static int 
-marvel_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+marvel_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
 {
         struct pci_controller *hose = dev->sysdata;
         struct io7_port *io7_port = hose->sysdata;
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 93180845ae16..36586dba6fa6 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -338,6 +338,7 @@ config ARCH_AT91
         select HAVE_CLK
         select CLKDEV_LOOKUP
         select IRQ_DOMAIN
+        select NEED_MACH_IO_H if PCCARD
         help
           This enables support for systems based on the Atmel AT91RM9200,
           AT91SAM9 processors.
@@ -1185,6 +1186,15 @@ if !MMU
 source "arch/arm/Kconfig-nommu"
 endif
 
+config ARM_ERRATA_326103
+        bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
+        depends on CPU_V6
+        help
+          Executing a SWP instruction to read-only memory does not set bit 11
+          of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
+          treat the access as a read, preventing a COW from occurring and
+          causing the faulting task to livelock.
+
 config ARM_ERRATA_411920
         bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
         depends on CPU_V6 || CPU_V6K
diff --git a/arch/arm/boot/compressed/atags_to_fdt.c b/arch/arm/boot/compressed/atags_to_fdt.c
index 6ce11c481178..797f04bedb47 100644
--- a/arch/arm/boot/compressed/atags_to_fdt.c
+++ b/arch/arm/boot/compressed/atags_to_fdt.c
@@ -77,6 +77,8 @@ int atags_to_fdt(void *atag_list, void *fdt, int total_space)
                 } else if (atag->hdr.tag == ATAG_MEM) {
                         if (memcount >= sizeof(mem_reg_property)/4)
                                 continue;
+                        if (!atag->u.mem.size)
+                                continue;
                         mem_reg_property[memcount++] = cpu_to_fdt32(atag->u.mem.start);
                         mem_reg_property[memcount++] = cpu_to_fdt32(atag->u.mem.size);
                 } else if (atag->hdr.tag == ATAG_INITRD2) {
diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S
index 5f6045f1766c..dc7e8ce8e6be 100644
--- a/arch/arm/boot/compressed/head.S
+++ b/arch/arm/boot/compressed/head.S
@@ -273,7 +273,7 @@ restart:	adr	r0, LC0
                 add     r0, r0, #0x100
                 mov     r1, r6
                 sub     r2, sp, r6
-                blne    atags_to_fdt
+                bleq    atags_to_fdt
 
                 ldmfd   sp!, {r0-r3, ip, lr}
                 sub     sp, sp, #0x10000
diff --git a/arch/arm/boot/dts/at91sam9g20.dtsi b/arch/arm/boot/dts/at91sam9g20.dtsi
index 92f36627e7f8..773ef484037a 100644
--- a/arch/arm/boot/dts/at91sam9g20.dtsi
+++ b/arch/arm/boot/dts/at91sam9g20.dtsi
@@ -35,7 +35,7 @@
                 };
         };
 
-        memory@20000000 {
+        memory {
                 reg = <0x20000000 0x08000000>;
         };
 
@@ -55,7 +55,6 @@
                                 #interrupt-cells = <2>;
                                 compatible = "atmel,at91rm9200-aic";
                                 interrupt-controller;
-                                interrupt-parent;
                                 reg = <0xfffff000 0x200>;
                         };
 
diff --git a/arch/arm/boot/dts/at91sam9g25ek.dts b/arch/arm/boot/dts/at91sam9g25ek.dts
index ac0dc0031dda..7829a4d0cb22 100644
--- a/arch/arm/boot/dts/at91sam9g25ek.dts
+++ b/arch/arm/boot/dts/at91sam9g25ek.dts
@@ -37,8 +37,8 @@
                 usb0: ohci@00600000 {
                         status = "okay";
                         num-ports = <2>;
-                        atmel,vbus-gpio = <&pioD 19 0
-                                           &pioD 20 0
+                        atmel,vbus-gpio = <&pioD 19 1
+                                           &pioD 20 1
                                           >;
                 };
 
diff --git a/arch/arm/boot/dts/at91sam9g45.dtsi b/arch/arm/boot/dts/at91sam9g45.dtsi
index 3d0c32fb218f..c8042147eaa2 100644
--- a/arch/arm/boot/dts/at91sam9g45.dtsi
+++ b/arch/arm/boot/dts/at91sam9g45.dtsi
@@ -36,7 +36,7 @@
                 };
         };
 
-        memory@70000000 {
+        memory {
                 reg = <0x70000000 0x10000000>;
         };
 
@@ -56,7 +56,6 @@
                                 #interrupt-cells = <2>;
                                 compatible = "atmel,at91rm9200-aic";
                                 interrupt-controller;
-                                interrupt-parent;
                                 reg = <0xfffff000 0x200>;
                         };
 
diff --git a/arch/arm/boot/dts/at91sam9m10g45ek.dts b/arch/arm/boot/dts/at91sam9m10g45ek.dts
index c4c8ae4123d5..a3633bd13111 100644
--- a/arch/arm/boot/dts/at91sam9m10g45ek.dts
+++ b/arch/arm/boot/dts/at91sam9m10g45ek.dts
@@ -17,7 +17,7 @@
                 bootargs = "mem=64M console=ttyS0,115200 root=/dev/mtdblock1 rw rootfstype=jffs2";
         };
 
-        memory@70000000 {
+        memory {
                 reg = <0x70000000 0x4000000>;
         };
 
@@ -73,8 +73,8 @@
                 usb0: ohci@00700000 {
                         status = "okay";
                         num-ports = <2>;
-                        atmel,vbus-gpio = <&pioD 1 0
-                                           &pioD 3 0>;
+                        atmel,vbus-gpio = <&pioD 1 1
+                                           &pioD 3 1>;
                 };
 
                 usb1: ehci@00800000 {
diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi
index c111001f254e..dd4ed748469a 100644
--- a/arch/arm/boot/dts/at91sam9x5.dtsi
+++ b/arch/arm/boot/dts/at91sam9x5.dtsi
@@ -34,7 +34,7 @@
                 };
         };
 
-        memory@20000000 {
+        memory {
                 reg = <0x20000000 0x10000000>;
         };
 
@@ -54,7 +54,6 @@
                                 #interrupt-cells = <2>;
                                 compatible = "atmel,at91rm9200-aic";
                                 interrupt-controller;
-                                interrupt-parent;
                                 reg = <0xfffff000 0x200>;
                         };
 
@@ -201,8 +200,8 @@
                               >;
                         atmel,nand-addr-offset = <21>;
                         atmel,nand-cmd-offset = <22>;
-                        gpios = <&pioC 8 0
-                                 &pioC 14 0
+                        gpios = <&pioD 5 0
+                                 &pioD 4 0
                                  0
                                 >;
                         status = "disabled";
diff --git a/arch/arm/boot/dts/at91sam9x5cm.dtsi b/arch/arm/boot/dts/at91sam9x5cm.dtsi
index 67936f83c694..31e7be23703d 100644
--- a/arch/arm/boot/dts/at91sam9x5cm.dtsi
+++ b/arch/arm/boot/dts/at91sam9x5cm.dtsi
@@ -8,7 +8,7 @@
  */
 
 / {
-        memory@20000000 {
+        memory {
                 reg = <0x20000000 0x8000000>;
         };
 
diff --git a/arch/arm/boot/dts/db8500.dtsi b/arch/arm/boot/dts/db8500.dtsi
index d73dce645667..14bc30705099 100644
--- a/arch/arm/boot/dts/db8500.dtsi
+++ b/arch/arm/boot/dts/db8500.dtsi
@@ -24,7 +24,6 @@
                         #interrupt-cells = <3>;
                         #address-cells = <1>;
                         interrupt-controller;
-                        interrupt-parent;
                         reg = <0xa0411000 0x1000>,
                               <0xa0410100 0x100>;
                 };
diff --git a/arch/arm/boot/dts/highbank.dts b/arch/arm/boot/dts/highbank.dts
index 37c0ff9c8b90..83e72294aefb 100644
--- a/arch/arm/boot/dts/highbank.dts
+++ b/arch/arm/boot/dts/highbank.dts
@@ -89,7 +89,6 @@
                         #size-cells = <0>;
                         #address-cells = <1>;
                         interrupt-controller;
-                        interrupt-parent;
                         reg = <0xfff11000 0x1000>,
                               <0xfff10100 0x100>;
                 };
diff --git a/arch/arm/boot/dts/msm8660-surf.dts b/arch/arm/boot/dts/msm8660-surf.dts
index 15ded0deaa79..45bc4bb04e57 100644
--- a/arch/arm/boot/dts/msm8660-surf.dts
+++ b/arch/arm/boot/dts/msm8660-surf.dts
@@ -10,7 +10,7 @@
         intc: interrupt-controller@02080000 {
                 compatible = "qcom,msm-8660-qgic";
                 interrupt-controller;
-                #interrupt-cells = <1>;
+                #interrupt-cells = <3>;
                 reg = < 0x02080000 0x1000 >,
                       < 0x02081000 0x1000 >;
         };
@@ -19,6 +19,6 @@
                 compatible = "qcom,msm-hsuart", "qcom,msm-uart";
                 reg = <0x19c40000 0x1000>,
                       <0x19c00000 0x1000>;
-                interrupts = <195>;
+                interrupts = <0 195 0x0>;
         };
 };
diff --git a/arch/arm/boot/dts/usb_a9g20.dts b/arch/arm/boot/dts/usb_a9g20.dts
index 3b3c4e0fa79f..7c2399c532e5 100644
--- a/arch/arm/boot/dts/usb_a9g20.dts
+++ b/arch/arm/boot/dts/usb_a9g20.dts
@@ -16,7 +16,7 @@
                 bootargs = "mem=64M console=ttyS0,115200 root=/dev/mtdblock5 rw rootfstype=ubifs";
         };
 
-        memory@20000000 {
+        memory {
                 reg = <0x20000000 0x4000000>;
         };
 
diff --git a/arch/arm/boot/dts/versatile-ab.dts b/arch/arm/boot/dts/versatile-ab.dts
index 0b32925f2147..e2fe3195c0d1 100644
--- a/arch/arm/boot/dts/versatile-ab.dts
+++ b/arch/arm/boot/dts/versatile-ab.dts
@@ -173,7 +173,7 @@
                         mmc@5000 {
                                 compatible = "arm,primecell";
                                 reg = < 0x5000 0x1000>;
-                                interrupts = <22>;
+                                interrupts = <22 34>;
                         };
                         kmi@6000 {
                                 compatible = "arm,pl050", "arm,primecell";
diff --git a/arch/arm/boot/dts/versatile-pb.dts b/arch/arm/boot/dts/versatile-pb.dts
index 166461073b78..7e8175269064 100644
--- a/arch/arm/boot/dts/versatile-pb.dts
+++ b/arch/arm/boot/dts/versatile-pb.dts
@@ -41,7 +41,7 @@
                         mmc@b000 {
                                 compatible = "arm,primecell";
                                 reg = <0xb000 0x1000>;
-                                interrupts = <23>;
+                                interrupts = <23 34>;
                         };
                 };
         };
diff --git a/arch/arm/common/vic.c b/arch/arm/common/vic.c
index 7a66311f3066..7e288f96cedf 100644
--- a/arch/arm/common/vic.c
+++ b/arch/arm/common/vic.c
@@ -427,19 +427,18 @@ int __init vic_of_init(struct device_node *node, struct device_node *parent)
 
 /*
  * Handle each interrupt in a single VIC.  Returns non-zero if we've
- * handled at least one interrupt.  This does a single read of the
- * status register and handles all interrupts in order from LSB first.
+ * handled at least one interrupt.  This reads the status register
+ * before handling each interrupt, which is necessary given that
+ * handle_IRQ may briefly re-enable interrupts for soft IRQ handling.
  */
 static int handle_one_vic(struct vic_device *vic, struct pt_regs *regs)
 {
         u32 stat, irq;
         int handled = 0;
 
-        stat = readl_relaxed(vic->base + VIC_IRQ_STATUS);
-        while (stat) {
+        while ((stat = readl_relaxed(vic->base + VIC_IRQ_STATUS))) {
                 irq = ffs(stat) - 1;
                 handle_IRQ(irq_find_mapping(vic->domain, irq), regs);
-                stat &= ~(1 << irq);
                 handled = 1;
         }
 
diff --git a/arch/arm/configs/imx_v4_v5_defconfig b/arch/arm/configs/imx_v4_v5_defconfig
index b5ac644e12af..6b31cb60daab 100644
--- a/arch/arm/configs/imx_v4_v5_defconfig
+++ b/arch/arm/configs/imx_v4_v5_defconfig
@@ -112,6 +112,7 @@ CONFIG_WATCHDOG=y
 CONFIG_IMX2_WDT=y
 CONFIG_MFD_MC13XXX=y
 CONFIG_REGULATOR=y
+CONFIG_REGULATOR_FIXED_VOLTAGE=y
 CONFIG_REGULATOR_MC13783=y
 CONFIG_REGULATOR_MC13892=y
 CONFIG_FB=y
diff --git a/arch/arm/configs/mini2440_defconfig b/arch/arm/configs/mini2440_defconfig
index 42da9183acc8..082175c54e7c 100644
--- a/arch/arm/configs/mini2440_defconfig
+++ b/arch/arm/configs/mini2440_defconfig
@@ -14,6 +14,8 @@ CONFIG_MODULE_FORCE_UNLOAD=y
 # CONFIG_BLK_DEV_BSG is not set
 CONFIG_BLK_DEV_INTEGRITY=y
 CONFIG_ARCH_S3C24XX=y
+# CONFIG_CPU_S3C2410 is not set
+CONFIG_CPU_S3C2440=y
 CONFIG_S3C_ADC=y
 CONFIG_S3C24XX_PWM=y
 CONFIG_MACH_MINI2440=y
diff --git a/arch/arm/configs/u8500_defconfig b/arch/arm/configs/u8500_defconfig
index 889d73ac1ae1..7e84f453e8a6 100644
--- a/arch/arm/configs/u8500_defconfig
+++ b/arch/arm/configs/u8500_defconfig
@@ -8,8 +8,6 @@ CONFIG_MODULE_UNLOAD=y
 # CONFIG_LBDAF is not set
 # CONFIG_BLK_DEV_BSG is not set
 CONFIG_ARCH_U8500=y
-CONFIG_UX500_SOC_DB5500=y
-CONFIG_UX500_SOC_DB8500=y
 CONFIG_MACH_HREFV60=y
 CONFIG_MACH_SNOWBALL=y
 CONFIG_MACH_U5500=y
@@ -39,7 +37,6 @@ CONFIG_CAIF=y
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=65536
-CONFIG_MISC_DEVICES=y
 CONFIG_AB8500_PWM=y
 CONFIG_SENSORS_BH1780=y
 CONFIG_NETDEVICES=y
@@ -65,16 +62,18 @@ CONFIG_SERIAL_AMBA_PL011=y
 CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
 CONFIG_HW_RANDOM=y
 CONFIG_HW_RANDOM_NOMADIK=y
-CONFIG_I2C=y
-CONFIG_I2C_NOMADIK=y
 CONFIG_SPI=y
 CONFIG_SPI_PL022=y
 CONFIG_GPIO_STMPE=y
 CONFIG_GPIO_TC3589X=y
+CONFIG_POWER_SUPPLY=y
+CONFIG_AB8500_BM=y
+CONFIG_AB8500_BATTERY_THERM_ON_BATCTRL=y
 CONFIG_MFD_STMPE=y
 CONFIG_MFD_TC3589X=y
 CONFIG_AB5500_CORE=y
 CONFIG_AB8500_CORE=y
+CONFIG_REGULATOR=y
 CONFIG_REGULATOR_AB8500=y
 # CONFIG_HID_SUPPORT is not set
 CONFIG_USB_GADGET=y
diff --git a/arch/arm/include/asm/barrier.h b/arch/arm/include/asm/barrier.h
index 44f4a09ff37b..05112380dc53 100644
--- a/arch/arm/include/asm/barrier.h
+++ b/arch/arm/include/asm/barrier.h
@@ -2,6 +2,7 @@
 #define __ASM_BARRIER_H
 
 #ifndef __ASSEMBLY__
+#include <asm/outercache.h>
 
 #define nop() __asm__ __volatile__("mov\tr0,r0\t@ nop\n\t");
 
@@ -39,7 +40,6 @@
 #ifdef CONFIG_ARCH_HAS_BARRIERS
 #include <mach/barriers.h>
 #elif defined(CONFIG_ARM_DMA_MEM_BUFFERABLE) || defined(CONFIG_SMP)
-#include <asm/outercache.h>
 #define mb()            do { dsb(); outer_sync(); } while (0)
 #define rmb()           dsb()
 #define wmb()           mb()
diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
index df0ac0bb39aa..9af5563dd3eb 100644
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -119,7 +119,7 @@ static inline void __iomem *__typesafe_io(unsigned long addr)
 #ifdef CONFIG_NEED_MACH_IO_H
 #include <mach/io.h>
 #else
-#define __io(a)         ({ (void)(a); __typesafe_io(0); })
+#define __io(a)         __typesafe_io((a) & IO_SPACE_LIMIT)
 #endif
 
 /*
diff --git a/arch/arm/include/asm/jump_label.h b/arch/arm/include/asm/jump_label.h
index 5c5ca2ea62b0..bfc198c75913 100644
--- a/arch/arm/include/asm/jump_label.h
+++ b/arch/arm/include/asm/jump_label.h
@@ -14,7 +14,7 @@
 #define JUMP_LABEL_NOP  "nop"
 #endif
 
-static __always_inline bool arch_static_branch(struct jump_label_key *key)
+static __always_inline bool arch_static_branch(struct static_key *key)
 {
         asm goto("1:\n\t"
                  JUMP_LABEL_NOP "\n\t"
diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h
index d4c24d412a8d..0f04d84582e1 100644
--- a/arch/arm/include/asm/thread_info.h
+++ b/arch/arm/include/asm/thread_info.h
@@ -118,6 +118,13 @@ extern void iwmmxt_task_switch(struct thread_info *);
 extern void vfp_sync_hwstate(struct thread_info *);
 extern void vfp_flush_hwstate(struct thread_info *);
 
+struct user_vfp;
+struct user_vfp_exc;
+
+extern int vfp_preserve_user_clear_hwstate(struct user_vfp __user *,
+                                           struct user_vfp_exc __user *);
+extern int vfp_restore_user_hwstate(struct user_vfp __user *,
+                                    struct user_vfp_exc __user *);
 #endif
 
 /*
diff --git a/arch/arm/include/asm/tls.h b/arch/arm/include/asm/tls.h
index 60843eb0f61c..73409e6c0251 100644
--- a/arch/arm/include/asm/tls.h
+++ b/arch/arm/include/asm/tls.h
@@ -7,6 +7,8 @@
 
         .macro set_tls_v6k, tp, tmp1, tmp2
         mcr     p15, 0, \tp, c13, c0, 3         @ set TLS register
+        mov     \tmp1, #0
+        mcr     p15, 0, \tmp1, c13, c0, 2       @ clear user r/w TLS register
         .endm
 
         .macro set_tls_v6, tp, tmp1, tmp2
@@ -15,6 +17,8 @@
         mov     \tmp2, #0xffff0fff
         tst     \tmp1, #HWCAP_TLS               @ hardware TLS available?
         mcrne   p15, 0, \tp, c13, c0, 3         @ yes, set TLS register
+        movne   \tmp1, #0
+        mcrne   p15, 0, \tmp1, c13, c0, 2       @ clear user r/w TLS register
         streq   \tp, [\tmp2, #-15]              @ set TLS value at 0xffff0ff0
         .endm
 
diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c
index 632df9a66f8c..ede5f7741c42 100644
--- a/arch/arm/kernel/bios32.c
+++ b/arch/arm/kernel/bios32.c
@@ -299,7 +299,6 @@ static inline int pdev_bad_for_parity(struct pci_dev *dev)
  */
 void pcibios_fixup_bus(struct pci_bus *bus)
 {
-        struct pci_sys_data *root = bus->sysdata;
         struct pci_dev *dev;
         u16 features = PCI_COMMAND_SERR | PCI_COMMAND_PARITY | PCI_COMMAND_FAST_BACK;
 
diff --git a/arch/arm/kernel/insn.c b/arch/arm/kernel/insn.c
index ab312e516546..b760340b7014 100644
--- a/arch/arm/kernel/insn.c
+++ b/arch/arm/kernel/insn.c
@@ -1,3 +1,4 @@
+#include <linux/bug.h>
 #include <linux/kernel.h>
 #include <asm/opcodes.h>
 
diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c
index 71ccdbfed662..8349d4e97e2b 100644
--- a/arch/arm/kernel/irq.c
+++ b/arch/arm/kernel/irq.c
@@ -155,10 +155,10 @@ static bool migrate_one_irq(struct irq_desc *desc)
         }
 
         c = irq_data_get_irq_chip(d);
-        if (c->irq_set_affinity)
-                c->irq_set_affinity(d, affinity, true);
-        else
+        if (!c->irq_set_affinity)
                 pr_debug("IRQ%u: unable to set affinity\n", d->irq);
+        else if (c->irq_set_affinity(d, affinity, true) == IRQ_SET_MASK_OK && ret)
+                cpumask_copy(d->affinity, affinity);
 
         return ret;
 }
diff --git a/arch/arm/kernel/kprobes.c b/arch/arm/kernel/kprobes.c
index ab1869dac97a..4dd41fc9e235 100644
--- a/arch/arm/kernel/kprobes.c
+++ b/arch/arm/kernel/kprobes.c
@@ -152,7 +152,7 @@ int __kprobes __arch_disarm_kprobe(void *p)
 
 void __kprobes arch_disarm_kprobe(struct kprobe *p)
 {
-        stop_machine(__arch_disarm_kprobe, p, &cpu_online_map);
+        stop_machine(__arch_disarm_kprobe, p, cpu_online_mask);
 }
 
 void __kprobes arch_remove_kprobe(struct kprobe *p)
diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
index 45956c9d0ef0..9650c143afc1 100644
--- a/arch/arm/kernel/ptrace.c
+++ b/arch/arm/kernel/ptrace.c
@@ -256,7 +256,7 @@ static int ptrace_read_user(struct task_struct *tsk, unsigned long off,
 {
         unsigned long tmp;
 
-        if (off & 3 || off >= sizeof(struct user))
+        if (off & 3)
                 return -EIO;
 
         tmp = 0;
@@ -268,6 +268,8 @@ static int ptrace_read_user(struct task_struct *tsk, unsigned long off,
                 tmp = tsk->mm->end_code;
         else if (off < sizeof(struct pt_regs))
                 tmp = get_user_reg(tsk, off >> 2);
+        else if (off >= sizeof(struct user))
+                return -EIO;
 
         return put_user(tmp, ret);
 }
@@ -904,27 +906,14 @@ long arch_ptrace(struct task_struct *child, long request,
         return ret;
 }
 
-#ifdef __ARMEB__
-#define AUDIT_ARCH_NR AUDIT_ARCH_ARMEB
-#else
-#define AUDIT_ARCH_NR AUDIT_ARCH_ARM
-#endif
-
 asmlinkage int syscall_trace(int why, struct pt_regs *regs, int scno)
 {
         unsigned long ip;
 
-        /*
-         * Save IP.  IP is used to denote syscall entry/exit:
-         *  IP = 0 -> entry, = 1 -> exit
-         */
-        ip = regs->ARM_ip;
-        regs->ARM_ip = why;
-
-        if (!ip)
+        if (why)
                 audit_syscall_exit(regs);
         else
-                audit_syscall_entry(AUDIT_ARCH_NR, scno, regs->ARM_r0,
+                audit_syscall_entry(AUDIT_ARCH_ARM, scno, regs->ARM_r0,
                                     regs->ARM_r1, regs->ARM_r2, regs->ARM_r3);
 
         if (!test_thread_flag(TIF_SYSCALL_TRACE))
@@ -934,6 +923,13 @@ asmlinkage int syscall_trace(int why, struct pt_regs *regs, int scno)
 
         current_thread_info()->syscall = scno;
 
+        /*
+         * IP is used to denote syscall entry/exit:
+         * IP = 0 -> entry, =1 -> exit
+         */
+        ip = regs->ARM_ip;
+        regs->ARM_ip = why;
+
         /* the 0x80 provides a way for the tracing parent to distinguish
            between a syscall stop and SIGTRAP delivery */
         ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index b91411371ae1..ebfac782593f 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -523,7 +523,21 @@ int __init arm_add_memory(phys_addr_t start, unsigned long size)
          */
         size -= start & ~PAGE_MASK;
         bank->start = PAGE_ALIGN(start);
-        bank->size  = size & PAGE_MASK;
+
+#ifndef CONFIG_LPAE
+        if (bank->start + size < bank->start) {
+                printk(KERN_CRIT "Truncating memory at 0x%08llx to fit in "
+                        "32-bit physical address space\n", (long long)start);
+                /*
+                 * To ensure bank->start + bank->size is representable in
+                 * 32 bits, we use ULONG_MAX as the upper limit rather than 4GB.
+                 * This means we lose a page after masking.
+                 */
+                size = ULONG_MAX - bank->start;
+        }
+#endif
+
+        bank->size = size & PAGE_MASK;
 
         /*
          * Check whether this memory region has non-zero size or
diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
index 7cb532fc8aa4..d68d1b694680 100644
--- a/arch/arm/kernel/signal.c
+++ b/arch/arm/kernel/signal.c
@@ -180,44 +180,23 @@ static int restore_iwmmxt_context(struct iwmmxt_sigframe *frame)
 
 static int preserve_vfp_context(struct vfp_sigframe __user *frame)
 {
-        struct thread_info *thread = current_thread_info();
-        struct vfp_hard_struct *h = &thread->vfpstate.hard;
         const unsigned long magic = VFP_MAGIC;
         const unsigned long size = VFP_STORAGE_SIZE;
         int err = 0;
 
-        vfp_sync_hwstate(thread);
         __put_user_error(magic, &frame->magic, err);
         __put_user_error(size, &frame->size, err);
 
-        /*
-         * Copy the floating point registers. There can be unused
-         * registers see asm/hwcap.h for details.
-         */
-        err |= __copy_to_user(&frame->ufp.fpregs, &h->fpregs,
-                              sizeof(h->fpregs));
-        /*
-         * Copy the status and control register.
-         */
-        __put_user_error(h->fpscr, &frame->ufp.fpscr, err);
-
-        /*
-         * Copy the exception registers.
-         */
-        __put_user_error(h->fpexc, &frame->ufp_exc.fpexc, err);
-        __put_user_error(h->fpinst, &frame->ufp_exc.fpinst, err);
-        __put_user_error(h->fpinst2, &frame->ufp_exc.fpinst2, err);
+        if (err)
+                return -EFAULT;
 
-        return err ? -EFAULT : 0;
+        return vfp_preserve_user_clear_hwstate(&frame->ufp, &frame->ufp_exc);
 }
 
 static int restore_vfp_context(struct vfp_sigframe __user *frame)
 {
-        struct thread_info *thread = current_thread_info();
-        struct vfp_hard_struct *h = &thread->vfpstate.hard;
         unsigned long magic;
         unsigned long size;
-        unsigned long fpexc;
         int err = 0;
 
         __get_user_error(magic, &frame->magic, err);
@@ -228,33 +207,7 @@ static int restore_vfp_context(struct vfp_sigframe __user *frame)
         if (magic != VFP_MAGIC || size != VFP_STORAGE_SIZE)
                 return -EINVAL;
 
-        vfp_flush_hwstate(thread);
-
-        /*
-         * Copy the floating point registers. There can be unused
-         * registers see asm/hwcap.h for details.
-         */
-        err |= __copy_from_user(&h->fpregs, &frame->ufp.fpregs,
-                                sizeof(h->fpregs));
-        /*
-         * Copy the status and control register.
-         */
-        __get_user_error(h->fpscr, &frame->ufp.fpscr, err);
-
-        /*
-         * Sanitise and restore the exception registers.
-         */
-        __get_user_error(fpexc, &frame->ufp_exc.fpexc, err);
-        /* Ensure the VFP is enabled. */
-        fpexc |= FPEXC_EN;
-        /* Ensure FPINST2 is invalid and the exception flag is cleared. */
-        fpexc &= ~(FPEXC_EX | FPEXC_FP2V);
-        h->fpexc = fpexc;
-
-        __get_user_error(h->fpinst, &frame->ufp_exc.fpinst, err);
-        __get_user_error(h->fpinst2, &frame->ufp_exc.fpinst2, err);
-
-        return err ? -EFAULT : 0;
+        return vfp_restore_user_hwstate(&frame->ufp, &frame->ufp_exc);
 }
 
 #endif
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 2cee7d1eb958..8f4644659777 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -251,8 +251,6 @@ asmlinkage void __cpuinit secondary_start_kernel(void)
         struct mm_struct *mm = &init_mm;
         unsigned int cpu = smp_processor_id();
 
-        printk("CPU%u: Booted secondary processor\n", cpu);
-
         /*
          * All kernel threads share the same mm context; grab a
          * reference and switch to it.
@@ -264,6 +262,8 @@ asmlinkage void __cpuinit secondary_start_kernel(void)
         enter_lazy_tlb(mm, current);
         local_flush_tlb_all();
 
+        printk("CPU%u: Booted secondary processor\n", cpu);
+
         cpu_init();
         preempt_disable();
         trace_hardirqs_off();
@@ -349,7 +349,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
                  * re-initialize the map in platform_smp_prepare_cpus() if
                  * present != possible (e.g. physical hotplug).
                  */
-                init_cpu_present(&cpu_possible_map);
+                init_cpu_present(cpu_possible_mask);
 
                 /*
                  * Initialise the SCU if there are more than one CPU
@@ -510,10 +510,6 @@ static void ipi_cpu_stop(unsigned int cpu)
         local_fiq_disable();
         local_irq_disable();
 
-#ifdef CONFIG_HOTPLUG_CPU
-        platform_cpu_kill(cpu);
-#endif
-
         while (1)
                 cpu_relax();
 }
@@ -576,16 +572,25 @@ void smp_send_reschedule(int cpu)
         smp_cross_call(cpumask_of(cpu), IPI_RESCHEDULE);
 }
 
+#ifdef CONFIG_HOTPLUG_CPU
+static void smp_kill_cpus(cpumask_t *mask)
+{
+        unsigned int cpu;
+        for_each_cpu(cpu, mask)
+                platform_cpu_kill(cpu);
+}
+#else
+static void smp_kill_cpus(cpumask_t *mask) { }
+#endif
+
 void smp_send_stop(void)
 {
         unsigned long timeout;
+        struct cpumask mask;
 
-        if (num_online_cpus() > 1) {
-                cpumask_t mask = cpu_online_map;
-                cpu_clear(smp_processor_id(), mask);
-
-                smp_cross_call(&mask, IPI_CPU_STOP);
-        }
+        cpumask_copy(&mask, cpu_online_mask);
+        cpumask_clear_cpu(smp_processor_id(), &mask);
+        smp_cross_call(&mask, IPI_CPU_STOP);
 
         /* Wait up to one second for other CPUs to stop */
         timeout = USEC_PER_SEC;
@@ -594,6 +599,8 @@ void smp_send_stop(void)
 
         if (num_online_cpus() > 1)
                 pr_warning("SMP: failed to stop secondary CPUs\n");
+
+        smp_kill_cpus(&mask);
 }
 
 /*
diff --git a/arch/arm/kernel/sys_arm.c b/arch/arm/kernel/sys_arm.c
index d2b177905cdb..76cbb055dd05 100644
--- a/arch/arm/kernel/sys_arm.c
+++ b/arch/arm/kernel/sys_arm.c
@@ -115,7 +115,7 @@ int kernel_execve(const char *filename,
                   "Ir" (THREAD_START_SP - sizeof(regs)),
                   "r" (&regs),
                   "Ir" (sizeof(regs))
-                : "r0", "r1", "r2", "r3", "ip", "lr", "memory");
+                : "r0", "r1", "r2", "r3", "r8", "r9", "ip", "lr", "memory");
 
  out:
         return ret;
diff --git a/arch/arm/mach-at91/at91rm9200_devices.c b/arch/arm/mach-at91/at91rm9200_devices.c
index 99ce5c955e39..05774e5b1cba 100644
--- a/arch/arm/mach-at91/at91rm9200_devices.c
+++ b/arch/arm/mach-at91/at91rm9200_devices.c
@@ -1173,7 +1173,6 @@ void __init at91_add_device_serial(void)
                 printk(KERN_INFO "AT91: No default serial console defined.\n");
 }
 #else
-void __init __deprecated at91_init_serial(struct at91_uart_config *config) {}
 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {}
 void __init at91_set_serial_console(unsigned portnr) {}
 void __init at91_add_device_serial(void) {}
diff --git a/arch/arm/mach-at91/at91rm9200_time.c b/arch/arm/mach-at91/at91rm9200_time.c
index dd7f782b0b91..104ca40d8d18 100644
--- a/arch/arm/mach-at91/at91rm9200_time.c
+++ b/arch/arm/mach-at91/at91rm9200_time.c
@@ -23,6 +23,7 @@
 #include <linux/interrupt.h>
 #include <linux/irq.h>
 #include <linux/clockchips.h>
+#include <linux/export.h>
 
 #include <asm/mach/time.h>
 
@@ -176,6 +177,7 @@ static struct clock_event_device clkevt = {
 };
 
 void __iomem *at91_st_base;
+EXPORT_SYMBOL_GPL(at91_st_base);
 
 void __init at91rm9200_ioremap_st(u32 addr)
 {
diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c
index 7e5651ee9f85..5652dde4bbe2 100644
--- a/arch/arm/mach-at91/at91sam9260_devices.c
+++ b/arch/arm/mach-at91/at91sam9260_devices.c
@@ -598,6 +598,9 @@ void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
                 else
                         cs_pin = spi1_standard_cs[devices[i].chip_select];
 
+                if (!gpio_is_valid(cs_pin))
+                        continue;
+
                 if (devices[i].bus_num == 0)
                         enable_spi0 = 1;
                 else
diff --git a/arch/arm/mach-at91/at91sam9261_devices.c b/arch/arm/mach-at91/at91sam9261_devices.c
index 096da87dc00d..4db961a93085 100644
--- a/arch/arm/mach-at91/at91sam9261_devices.c
+++ b/arch/arm/mach-at91/at91sam9261_devices.c
@@ -415,6 +415,9 @@ void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
                 else
                         cs_pin = spi1_standard_cs[devices[i].chip_select];
 
+                if (!gpio_is_valid(cs_pin))
+                        continue;
+
                 if (devices[i].bus_num == 0)
                         enable_spi0 = 1;
                 else
diff --git a/arch/arm/mach-at91/at91sam9263_devices.c b/arch/arm/mach-at91/at91sam9263_devices.c
index 53688c46f956..fe99206de880 100644
--- a/arch/arm/mach-at91/at91sam9263_devices.c
+++ b/arch/arm/mach-at91/at91sam9263_devices.c
@@ -72,7 +72,8 @@ void __init at91_add_device_usbh(struct at91_usbh_data *data)
         /* Enable VBus control for UHP ports */
         for (i = 0; i < data->ports; i++) {
                 if (gpio_is_valid(data->vbus_pin[i]))
-                        at91_set_gpio_output(data->vbus_pin[i], 0);
+                        at91_set_gpio_output(data->vbus_pin[i],
+                                             data->vbus_pin_active_low[i]);
         }
 
         /* Enable overcurrent notification */
@@ -671,6 +672,9 @@ void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
                 else
                         cs_pin = spi1_standard_cs[devices[i].chip_select];
 
+                if (!gpio_is_valid(cs_pin))
+                        continue;
+
                 if (devices[i].bus_num == 0)
                         enable_spi0 = 1;
                 else
diff --git a/arch/arm/mach-at91/at91sam9g45_devices.c b/arch/arm/mach-at91/at91sam9g45_devices.c
index 698479f1e197..6b008aee1dff 100644
--- a/arch/arm/mach-at91/at91sam9g45_devices.c
+++ b/arch/arm/mach-at91/at91sam9g45_devices.c
@@ -127,12 +127,13 @@ void __init at91_add_device_usbh_ohci(struct at91_usbh_data *data)
         /* Enable VBus control for UHP ports */
         for (i = 0; i < data->ports; i++) {
                 if (gpio_is_valid(data->vbus_pin[i]))
-                        at91_set_gpio_output(data->vbus_pin[i], 0);
+                        at91_set_gpio_output(data->vbus_pin[i],
+                                             data->vbus_pin_active_low[i]);
         }
 
         /* Enable overcurrent notification */
         for (i = 0; i < data->ports; i++) {
-                if (data->overcurrent_pin[i])
+                if (gpio_is_valid(data->overcurrent_pin[i]))
                         at91_set_gpio_input(data->overcurrent_pin[i], 1);
         }
 
@@ -188,7 +189,8 @@ void __init at91_add_device_usbh_ehci(struct at91_usbh_data *data)
         /* Enable VBus control for UHP ports */
         for (i = 0; i < data->ports; i++) {
                 if (gpio_is_valid(data->vbus_pin[i]))
-                        at91_set_gpio_output(data->vbus_pin[i], 0);
+                        at91_set_gpio_output(data->vbus_pin[i],
+                                             data->vbus_pin_active_low[i]);
         }
 
         usbh_ehci_data = *data;
@@ -785,6 +787,9 @@ void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
                 else
                         cs_pin = spi1_standard_cs[devices[i].chip_select];
 
+                if (!gpio_is_valid(cs_pin))
+                        continue;
+
                 if (devices[i].bus_num == 0)
                         enable_spi0 = 1;
                 else
diff --git a/arch/arm/mach-at91/at91sam9rl_devices.c b/arch/arm/mach-at91/at91sam9rl_devices.c
index eda72e83037d..fe4ae22e8561 100644
--- a/arch/arm/mach-at91/at91sam9rl_devices.c
+++ b/arch/arm/mach-at91/at91sam9rl_devices.c
@@ -419,6 +419,9 @@ void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
                 else
                         cs_pin = spi_standard_cs[devices[i].chip_select];
 
+                if (!gpio_is_valid(cs_pin))
+                        continue;
+
                 /* enable chip-select pin */
                 at91_set_gpio_output(cs_pin, 1);
 
diff --git a/arch/arm/mach-at91/at91sam9x5.c b/arch/arm/mach-at91/at91sam9x5.c
index b6831eeb7b76..13c8cae60462 100644
--- a/arch/arm/mach-at91/at91sam9x5.c
+++ b/arch/arm/mach-at91/at91sam9x5.c
@@ -223,6 +223,8 @@ static struct clk_lookup periph_clocks_lookups[] = {
         CLKDEV_CON_DEV_ID("usart", "f8028000.serial", &usart3_clk),
         CLKDEV_CON_DEV_ID("t0_clk", "f8008000.timer", &tcb0_clk),
         CLKDEV_CON_DEV_ID("t0_clk", "f800c000.timer", &tcb0_clk),
+        CLKDEV_CON_DEV_ID("dma_clk", "ffffec00.dma-controller", &dma0_clk),
+        CLKDEV_CON_DEV_ID("dma_clk", "ffffee00.dma-controller", &dma1_clk),
         CLKDEV_CON_ID("pioA", &pioAB_clk),
         CLKDEV_CON_ID("pioB", &pioAB_clk),
         CLKDEV_CON_ID("pioC", &pioCD_clk),
diff --git a/arch/arm/mach-at91/board-rm9200ek.c b/arch/arm/mach-at91/board-rm9200ek.c
index 11cbaa8946fe..b2e4fe21f346 100644
--- a/arch/arm/mach-at91/board-rm9200ek.c
+++ b/arch/arm/mach-at91/board-rm9200ek.c
@@ -117,7 +117,7 @@ static struct i2c_board_info __initdata ek_i2c_devices[] = {
 };
 
 #define EK_FLASH_BASE   AT91_CHIPSELECT_0
-#define EK_FLASH_SIZE   SZ_2M
+#define EK_FLASH_SIZE   SZ_8M
 
 static struct physmap_flash_data ek_flash_data = {
         .width          = 2,
diff --git a/arch/arm/mach-at91/board-sam9261ek.c b/arch/arm/mach-at91/board-sam9261ek.c
index c3f994462864..065fed342424 100644
--- a/arch/arm/mach-at91/board-sam9261ek.c
+++ b/arch/arm/mach-at91/board-sam9261ek.c
@@ -85,8 +85,6 @@ static struct resource dm9000_resource[] = {
                 .flags  = IORESOURCE_MEM
         },
         [2] = {
-                .start  = AT91_PIN_PC11,
-                .end    = AT91_PIN_PC11,
                 .flags  = IORESOURCE_IRQ
                         | IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE,
         }
@@ -130,6 +128,8 @@ static struct sam9_smc_config __initdata dm9000_smc_config = {
 
 static void __init ek_add_device_dm9000(void)
 {
+        struct resource *r = &dm9000_resource[2];
+
         /* Configure chip-select 2 (DM9000) */
         sam9_smc_configure(0, 2, &dm9000_smc_config);
 
@@ -139,6 +139,7 @@ static void __init ek_add_device_dm9000(void)
         /* Configure Interrupt pin as input, no pull-up */
         at91_set_gpio_input(AT91_PIN_PC11, 0);
 
+        r->start = r->end = gpio_to_irq(AT91_PIN_PC11);
         platform_device_register(&dm9000_device);
 }
 #else
diff --git a/arch/arm/mach-at91/board-sam9263ek.c b/arch/arm/mach-at91/board-sam9263ek.c
index 66f0ddf4b2ae..2ffe50f3a9e9 100644
--- a/arch/arm/mach-at91/board-sam9263ek.c
+++ b/arch/arm/mach-at91/board-sam9263ek.c
@@ -74,6 +74,7 @@ static void __init ek_init_early(void)
 static struct at91_usbh_data __initdata ek_usbh_data = {
         .ports          = 2,
         .vbus_pin       = { AT91_PIN_PA24, AT91_PIN_PA21 },
+        .vbus_pin_active_low = {1, 1},
         .overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
diff --git a/arch/arm/mach-at91/board-sam9m10g45ek.c b/arch/arm/mach-at91/board-sam9m10g45ek.c
index e1bea73e6b30..c88e908ddd82 100644
--- a/arch/arm/mach-at91/board-sam9m10g45ek.c
+++ b/arch/arm/mach-at91/board-sam9m10g45ek.c
@@ -71,6 +71,7 @@ static void __init ek_init_early(void)
 static struct at91_usbh_data __initdata ek_usbh_hs_data = {
         .ports          = 2,
         .vbus_pin       = {AT91_PIN_PD1, AT91_PIN_PD3},
+        .vbus_pin_active_low = {1, 1},
         .overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
diff --git a/arch/arm/mach-at91/clock.c b/arch/arm/mach-at91/clock.c
index a0f4d7424cdc..6b692824c988 100644
--- a/arch/arm/mach-at91/clock.c
+++ b/arch/arm/mach-at91/clock.c
@@ -35,6 +35,7 @@
 #include "generic.h"
 
 void __iomem *at91_pmc_base;
+EXPORT_SYMBOL_GPL(at91_pmc_base);
 
 /*
  * There's a lot more which can be done with clocks, including cpufreq
diff --git a/arch/arm/mach-at91/include/mach/at91_pmc.h b/arch/arm/mach-at91/include/mach/at91_pmc.h
index 36604782a78f..ea2c57a86ca6 100644
--- a/arch/arm/mach-at91/include/mach/at91_pmc.h
+++ b/arch/arm/mach-at91/include/mach/at91_pmc.h
@@ -25,7 +25,7 @@ extern void __iomem *at91_pmc_base;
 #define at91_pmc_write(field, value) \
         __raw_writel(value, at91_pmc_base + field)
 #else
-.extern at91_aic_base
+.extern at91_pmc_base
 #endif
 
 #define AT91_PMC_SCER           0x00                    /* System Clock Enable Register */
diff --git a/arch/arm/mach-at91/include/mach/board.h b/arch/arm/mach-at91/include/mach/board.h
index 544a5d5ce416..49a821192c65 100644
--- a/arch/arm/mach-at91/include/mach/board.h
+++ b/arch/arm/mach-at91/include/mach/board.h
@@ -86,14 +86,15 @@ extern void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *d
 extern void __init at91_add_device_eth(struct macb_platform_data *data);
 
  /* USB Host */
+#define AT91_MAX_USBH_PORTS     3
 struct at91_usbh_data {
-        u8              ports;          /* number of ports on root hub */
-        int             vbus_pin[2];    /* port power-control pin */
-        u8              vbus_pin_active_low[2];
+        int             vbus_pin[AT91_MAX_USBH_PORTS];  /* port power-control pin */
+        int             overcurrent_pin[AT91_MAX_USBH_PORTS];
+        u8              ports;                          /* number of ports on root hub */
         u8              overcurrent_supported;
-        int             overcurrent_pin[2];
-        u8              overcurrent_status[2];
-        u8              overcurrent_changed[2];
+        u8              vbus_pin_active_low[AT91_MAX_USBH_PORTS];
+        u8              overcurrent_status[AT91_MAX_USBH_PORTS];
+        u8              overcurrent_changed[AT91_MAX_USBH_PORTS];
 };
 extern void __init at91_add_device_usbh(struct at91_usbh_data *data);
 extern void __init at91_add_device_usbh_ohci(struct at91_usbh_data *data);
diff --git a/arch/arm/mach-at91/include/mach/io.h b/arch/arm/mach-at91/include/mach/io.h
new file mode 100644
index 000000000000..2d9ca0455745
--- /dev/null
+++ b/arch/arm/mach-at91/include/mach/io.h
@@ -0,0 +1,27 @@
+/*
+ * arch/arm/mach-at91/include/mach/io.h
+ *
+ *  Copyright (C) 2003 SAN People
+ *
+ * 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
+ */
+
+#ifndef __ASM_ARCH_IO_H
+#define __ASM_ARCH_IO_H
+
+#define IO_SPACE_LIMIT          0xFFFFFFFF
+#define __io(a)                 __typesafe_io(a)
+
+#endif
diff --git a/arch/arm/mach-at91/setup.c b/arch/arm/mach-at91/setup.c
index 97cc04dc8073..f44a2e7272e3 100644
--- a/arch/arm/mach-at91/setup.c
+++ b/arch/arm/mach-at91/setup.c
@@ -54,6 +54,7 @@ void __init at91_init_interrupts(unsigned int *priority)
 }
 
 void __iomem *at91_ramc_base[2];
+EXPORT_SYMBOL_GPL(at91_ramc_base);
 
 void __init at91_ioremap_ramc(int id, u32 addr, u32 size)
 {
@@ -292,6 +293,7 @@ void __init at91_ioremap_rstc(u32 base_addr)
 }
 
 void __iomem *at91_matrix_base;
+EXPORT_SYMBOL_GPL(at91_matrix_base);
 
 void __init at91_ioremap_matrix(u32 base_addr)
 {
diff --git a/arch/arm/mach-bcmring/core.c b/arch/arm/mach-bcmring/core.c
index 22e4e0a28ad1..adbfb1994582 100644
--- a/arch/arm/mach-bcmring/core.c
+++ b/arch/arm/mach-bcmring/core.c
@@ -52,8 +52,8 @@
 #include <mach/csp/chipcHw_inline.h>
 #include <mach/csp/tmrHw_reg.h>
 
-static AMBA_APB_DEVICE(uartA, "uarta", MM_ADDR_IO_UARTA, { IRQ_UARTA }, NULL);
-static AMBA_APB_DEVICE(uartB, "uartb", MM_ADDR_IO_UARTB, { IRQ_UARTB }, NULL);
+static AMBA_APB_DEVICE(uartA, "uartA", 0, MM_ADDR_IO_UARTA, {IRQ_UARTA}, NULL);
+static AMBA_APB_DEVICE(uartB, "uartB", 0, MM_ADDR_IO_UARTB, {IRQ_UARTB}, NULL);
 
 static struct clk pll1_clk = {
         .name = "PLL1",
diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
index 0491ceef1cda..b8df521fb68e 100644
--- a/arch/arm/mach-exynos/Kconfig
+++ b/arch/arm/mach-exynos/Kconfig
@@ -232,6 +232,9 @@ config MACH_ARMLEX4210
 config MACH_UNIVERSAL_C210
         bool "Mobile UNIVERSAL_C210 Board"
         select CPU_EXYNOS4210
+        select S5P_HRT
+        select CLKSRC_MMIO
+        select HAVE_SCHED_CLOCK
         select S5P_GPIO_INT
         select S5P_DEV_FIMC0
         select S5P_DEV_FIMC1
@@ -368,6 +371,7 @@ comment "Flattened Device Tree based board for EXYNOS SoCs"
 
 config MACH_EXYNOS4_DT
         bool "Samsung Exynos4 Machine using device tree"
+        depends on ARCH_EXYNOS4
         select CPU_EXYNOS4210
         select USE_OF
         select ARM_AMBA
@@ -380,6 +384,7 @@ config MACH_EXYNOS4_DT
 
 config MACH_EXYNOS5_DT
         bool "SAMSUNG EXYNOS5 Machine using device tree"
+        depends on ARCH_EXYNOS5
         select SOC_EXYNOS5250
         select USE_OF
         select ARM_AMBA
diff --git a/arch/arm/mach-exynos/clock-exynos4.c b/arch/arm/mach-exynos/clock-exynos4.c
index df54c2a92225..6efd1e5919fd 100644
--- a/arch/arm/mach-exynos/clock-exynos4.c
+++ b/arch/arm/mach-exynos/clock-exynos4.c
@@ -497,25 +497,25 @@ static struct clk exynos4_init_clocks_off[] = {
                 .ctrlbit        = (1 << 3),
         }, {
                 .name           = "hsmmc",
-                .devname        = "s3c-sdhci.0",
+                .devname        = "exynos4-sdhci.0",
                 .parent         = &exynos4_clk_aclk_133.clk,
                 .enable         = exynos4_clk_ip_fsys_ctrl,
                 .ctrlbit        = (1 << 5),
         }, {
                 .name           = "hsmmc",
-                .devname        = "s3c-sdhci.1",
+                .devname        = "exynos4-sdhci.1",
                 .parent         = &exynos4_clk_aclk_133.clk,
                 .enable         = exynos4_clk_ip_fsys_ctrl,
                 .ctrlbit        = (1 << 6),
         }, {
                 .name           = "hsmmc",
-                .devname        = "s3c-sdhci.2",
+                .devname        = "exynos4-sdhci.2",
                 .parent         = &exynos4_clk_aclk_133.clk,
                 .enable         = exynos4_clk_ip_fsys_ctrl,
                 .ctrlbit        = (1 << 7),
         }, {
                 .name           = "hsmmc",
-                .devname        = "s3c-sdhci.3",
+                .devname        = "exynos4-sdhci.3",
                 .parent         = &exynos4_clk_aclk_133.clk,
                 .enable         = exynos4_clk_ip_fsys_ctrl,
                 .ctrlbit        = (1 << 8),
@@ -1202,7 +1202,7 @@ static struct clksrc_clk exynos4_clk_sclk_uart3 = {
 static struct clksrc_clk exynos4_clk_sclk_mmc0 = {
         .clk    = {
                 .name           = "sclk_mmc",
-                .devname        = "s3c-sdhci.0",
+                .devname        = "exynos4-sdhci.0",
                 .parent         = &exynos4_clk_dout_mmc0.clk,
                 .enable         = exynos4_clksrc_mask_fsys_ctrl,
                 .ctrlbit        = (1 << 0),
@@ -1213,7 +1213,7 @@ static struct clksrc_clk exynos4_clk_sclk_mmc0 = {
 static struct clksrc_clk exynos4_clk_sclk_mmc1 = {
         .clk    = {
                 .name           = "sclk_mmc",
-                .devname        = "s3c-sdhci.1",
+                .devname        = "exynos4-sdhci.1",
                 .parent         = &exynos4_clk_dout_mmc1.clk,
                 .enable         = exynos4_clksrc_mask_fsys_ctrl,
                 .ctrlbit        = (1 << 4),
@@ -1224,7 +1224,7 @@ static struct clksrc_clk exynos4_clk_sclk_mmc1 = {
 static struct clksrc_clk exynos4_clk_sclk_mmc2 = {
         .clk    = {
                 .name           = "sclk_mmc",
-                .devname        = "s3c-sdhci.2",
+                .devname        = "exynos4-sdhci.2",
                 .parent         = &exynos4_clk_dout_mmc2.clk,
                 .enable         = exynos4_clksrc_mask_fsys_ctrl,
                 .ctrlbit        = (1 << 8),
@@ -1235,7 +1235,7 @@ static struct clksrc_clk exynos4_clk_sclk_mmc2 = {
 static struct clksrc_clk exynos4_clk_sclk_mmc3 = {
         .clk    = {
                 .name           = "sclk_mmc",
-                .devname        = "s3c-sdhci.3",
+                .devname        = "exynos4-sdhci.3",
                 .parent         = &exynos4_clk_dout_mmc3.clk,
                 .enable         = exynos4_clksrc_mask_fsys_ctrl,
                 .ctrlbit        = (1 << 12),
@@ -1340,10 +1340,10 @@ static struct clk_lookup exynos4_clk_lookup[] = {
         CLKDEV_INIT("exynos4210-uart.1", "clk_uart_baud0", &exynos4_clk_sclk_uart1.clk),
         CLKDEV_INIT("exynos4210-uart.2", "clk_uart_baud0", &exynos4_clk_sclk_uart2.clk),
         CLKDEV_INIT("exynos4210-uart.3", "clk_uart_baud0", &exynos4_clk_sclk_uart3.clk),
-        CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.2", &exynos4_clk_sclk_mmc0.clk),
-        CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.2", &exynos4_clk_sclk_mmc1.clk),
-        CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.2", &exynos4_clk_sclk_mmc2.clk),
-        CLKDEV_INIT("s3c-sdhci.3", "mmc_busclk.2", &exynos4_clk_sclk_mmc3.clk),
+        CLKDEV_INIT("exynos4-sdhci.0", "mmc_busclk.2", &exynos4_clk_sclk_mmc0.clk),
+        CLKDEV_INIT("exynos4-sdhci.1", "mmc_busclk.2", &exynos4_clk_sclk_mmc1.clk),
+        CLKDEV_INIT("exynos4-sdhci.2", "mmc_busclk.2", &exynos4_clk_sclk_mmc2.clk),
+        CLKDEV_INIT("exynos4-sdhci.3", "mmc_busclk.2", &exynos4_clk_sclk_mmc3.clk),
         CLKDEV_INIT("exynos4-fb.0", "lcd", &exynos4_clk_fimd0),
         CLKDEV_INIT("dma-pl330.0", "apb_pclk", &exynos4_clk_pdma0),
         CLKDEV_INIT("dma-pl330.1", "apb_pclk", &exynos4_clk_pdma1),
diff --git a/arch/arm/mach-exynos/clock-exynos5.c b/arch/arm/mach-exynos/clock-exynos5.c
index d013982d0f8e..7ac6ff4c46bd 100644
--- a/arch/arm/mach-exynos/clock-exynos5.c
+++ b/arch/arm/mach-exynos/clock-exynos5.c
@@ -455,25 +455,25 @@ static struct clk exynos5_init_clocks_off[] = {
                 .ctrlbit        = (1 << 20),
         }, {
                 .name           = "hsmmc",
-                .devname        = "s3c-sdhci.0",
+                .devname        = "exynos4-sdhci.0",
                 .parent         = &exynos5_clk_aclk_200.clk,
                 .enable         = exynos5_clk_ip_fsys_ctrl,
                 .ctrlbit        = (1 << 12),
         }, {
                 .name           = "hsmmc",
-                .devname        = "s3c-sdhci.1",
+                .devname        = "exynos4-sdhci.1",
                 .parent         = &exynos5_clk_aclk_200.clk,
                 .enable         = exynos5_clk_ip_fsys_ctrl,
                 .ctrlbit        = (1 << 13),
         }, {
                 .name           = "hsmmc",
-                .devname        = "s3c-sdhci.2",
+                .devname        = "exynos4-sdhci.2",
                 .parent         = &exynos5_clk_aclk_200.clk,
                 .enable         = exynos5_clk_ip_fsys_ctrl,
                 .ctrlbit        = (1 << 14),
         }, {
                 .name           = "hsmmc",
-                .devname        = "s3c-sdhci.3",
+                .devname        = "exynos4-sdhci.3",
                 .parent         = &exynos5_clk_aclk_200.clk,
                 .enable         = exynos5_clk_ip_fsys_ctrl,
                 .ctrlbit        = (1 << 15),
@@ -678,7 +678,7 @@ static struct clk exynos5_clk_pdma1 = {
         .name           = "dma",
         .devname        = "dma-pl330.1",
         .enable         = exynos5_clk_ip_fsys_ctrl,
-        .ctrlbit        = (1 << 1),
+        .ctrlbit        = (1 << 2),
 };
 
 static struct clk exynos5_clk_mdma1 = {
@@ -813,7 +813,7 @@ static struct clksrc_clk exynos5_clk_sclk_uart3 = {
 static struct clksrc_clk exynos5_clk_sclk_mmc0 = {
         .clk    = {
                 .name           = "sclk_mmc",
-                .devname        = "s3c-sdhci.0",
+                .devname        = "exynos4-sdhci.0",
                 .parent         = &exynos5_clk_dout_mmc0.clk,
                 .enable         = exynos5_clksrc_mask_fsys_ctrl,
                 .ctrlbit        = (1 << 0),
@@ -824,7 +824,7 @@ static struct clksrc_clk exynos5_clk_sclk_mmc0 = {
 static struct clksrc_clk exynos5_clk_sclk_mmc1 = {
         .clk    = {
                 .name           = "sclk_mmc",
-                .devname        = "s3c-sdhci.1",
+                .devname        = "exynos4-sdhci.1",
                 .parent         = &exynos5_clk_dout_mmc1.clk,
                 .enable         = exynos5_clksrc_mask_fsys_ctrl,
                 .ctrlbit        = (1 << 4),
@@ -835,7 +835,7 @@ static struct clksrc_clk exynos5_clk_sclk_mmc1 = {
 static struct clksrc_clk exynos5_clk_sclk_mmc2 = {
         .clk    = {
                 .name           = "sclk_mmc",
-                .devname        = "s3c-sdhci.2",
+                .devname        = "exynos4-sdhci.2",
                 .parent         = &exynos5_clk_dout_mmc2.clk,
                 .enable         = exynos5_clksrc_mask_fsys_ctrl,
                 .ctrlbit        = (1 << 8),
@@ -846,7 +846,7 @@ static struct clksrc_clk exynos5_clk_sclk_mmc2 = {
 static struct clksrc_clk exynos5_clk_sclk_mmc3 = {
         .clk    = {
                 .name           = "sclk_mmc",
-                .devname        = "s3c-sdhci.3",
+                .devname        = "exynos4-sdhci.3",
                 .parent         = &exynos5_clk_dout_mmc3.clk,
                 .enable         = exynos5_clksrc_mask_fsys_ctrl,
                 .ctrlbit        = (1 << 12),
@@ -990,10 +990,10 @@ static struct clk_lookup exynos5_clk_lookup[] = {
         CLKDEV_INIT("exynos4210-uart.1", "clk_uart_baud0", &exynos5_clk_sclk_uart1.clk),
         CLKDEV_INIT("exynos4210-uart.2", "clk_uart_baud0", &exynos5_clk_sclk_uart2.clk),
         CLKDEV_INIT("exynos4210-uart.3", "clk_uart_baud0", &exynos5_clk_sclk_uart3.clk),
-        CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.2", &exynos5_clk_sclk_mmc0.clk),
-        CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.2", &exynos5_clk_sclk_mmc1.clk),
-        CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.2", &exynos5_clk_sclk_mmc2.clk),
-        CLKDEV_INIT("s3c-sdhci.3", "mmc_busclk.2", &exynos5_clk_sclk_mmc3.clk),
+        CLKDEV_INIT("exynos4-sdhci.0", "mmc_busclk.2", &exynos5_clk_sclk_mmc0.clk),
+        CLKDEV_INIT("exynos4-sdhci.1", "mmc_busclk.2", &exynos5_clk_sclk_mmc1.clk),
+        CLKDEV_INIT("exynos4-sdhci.2", "mmc_busclk.2", &exynos5_clk_sclk_mmc2.clk),
+        CLKDEV_INIT("exynos4-sdhci.3", "mmc_busclk.2", &exynos5_clk_sclk_mmc3.clk),
         CLKDEV_INIT("dma-pl330.0", "apb_pclk", &exynos5_clk_pdma0),
         CLKDEV_INIT("dma-pl330.1", "apb_pclk", &exynos5_clk_pdma1),
         CLKDEV_INIT("dma-pl330.2", "apb_pclk", &exynos5_clk_mdma1),
diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c
index e6cc50e94a58..5ccd6e80a607 100644
--- a/arch/arm/mach-exynos/common.c
+++ b/arch/arm/mach-exynos/common.c
@@ -326,6 +326,11 @@ static void __init exynos4_map_io(void)
         s3c_fimc_setname(2, "exynos4-fimc");
         s3c_fimc_setname(3, "exynos4-fimc");
 
+        s3c_sdhci_setname(0, "exynos4-sdhci");
+        s3c_sdhci_setname(1, "exynos4-sdhci");
+        s3c_sdhci_setname(2, "exynos4-sdhci");
+        s3c_sdhci_setname(3, "exynos4-sdhci");
+
         /* The I2C bus controllers are directly compatible with s3c2440 */
         s3c_i2c0_setname("s3c2440-i2c");
         s3c_i2c1_setname("s3c2440-i2c");
@@ -344,6 +349,11 @@ static void __init exynos5_map_io(void)
         s3c_device_i2c0.resource[1].start = EXYNOS5_IRQ_IIC;
         s3c_device_i2c0.resource[1].end   = EXYNOS5_IRQ_IIC;
 
+        s3c_sdhci_setname(0, "exynos4-sdhci");
+        s3c_sdhci_setname(1, "exynos4-sdhci");
+        s3c_sdhci_setname(2, "exynos4-sdhci");
+        s3c_sdhci_setname(3, "exynos4-sdhci");
+
         /* The I2C bus controllers are directly compatible with s3c2440 */
         s3c_i2c0_setname("s3c2440-i2c");
         s3c_i2c1_setname("s3c2440-i2c");
@@ -537,7 +547,9 @@ void __init exynos5_init_irq(void)
 {
         int irq;
 
-        gic_init(0, IRQ_PPI(0), S5P_VA_GIC_DIST, S5P_VA_GIC_CPU);
+#ifdef CONFIG_OF
+        of_irq_init(exynos4_dt_irq_match);
+#endif
 
         for (irq = 0; irq < EXYNOS5_MAX_COMBINER_NR; irq++) {
                 combiner_init(irq, (void __iomem *)S5P_VA_COMBINER(irq),
@@ -583,10 +595,11 @@ core_initcall(exynos_core_init);
 #ifdef CONFIG_CACHE_L2X0
 static int __init exynos4_l2x0_cache_init(void)
 {
+        int ret;
+
         if (soc_is_exynos5250())
                 return 0;
 
-        int ret;
         ret = l2x0_of_init(L2_AUX_VAL, L2_AUX_MASK);
         if (!ret) {
                 l2x0_regs_phys = virt_to_phys(&l2x0_saved_regs);
diff --git a/arch/arm/mach-exynos/dev-dwmci.c b/arch/arm/mach-exynos/dev-dwmci.c
index b025db4bf602..79035018fb74 100644
--- a/arch/arm/mach-exynos/dev-dwmci.c
+++ b/arch/arm/mach-exynos/dev-dwmci.c
@@ -16,6 +16,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/platform_device.h>
 #include <linux/interrupt.h>
+#include <linux/ioport.h>
 #include <linux/mmc/dw_mmc.h>
 
 #include <plat/devs.h>
@@ -33,16 +34,8 @@ static int exynos4_dwmci_init(u32 slot_id, irq_handler_t handler, void *data)
 }
 
 static struct resource exynos4_dwmci_resource[] = {
-        [0] = {
-                .start  = EXYNOS4_PA_DWMCI,
-                .end    = EXYNOS4_PA_DWMCI + SZ_4K - 1,
-                .flags  = IORESOURCE_MEM,
-        },
-        [1] = {
-                .start  = IRQ_DWMCI,
-                .end    = IRQ_DWMCI,
-                .flags  = IORESOURCE_IRQ,
-        }
+        [0] = DEFINE_RES_MEM(EXYNOS4_PA_DWMCI, SZ_4K),
+        [1] = DEFINE_RES_IRQ(EXYNOS4_IRQ_DWMCI),
 };
 
 static struct dw_mci_board exynos4_dwci_pdata = {
diff --git a/arch/arm/mach-exynos/dma.c b/arch/arm/mach-exynos/dma.c
index 3983abee4264..69aaa4503205 100644
--- a/arch/arm/mach-exynos/dma.c
+++ b/arch/arm/mach-exynos/dma.c
@@ -35,8 +35,6 @@
 #include <mach/irqs.h>
 #include <mach/dma.h>
 
-static u64 dma_dmamask = DMA_BIT_MASK(32);
-
 static u8 exynos4210_pdma0_peri[] = {
         DMACH_PCM0_RX,
         DMACH_PCM0_TX,
diff --git a/arch/arm/mach-exynos/include/mach/debug-macro.S b/arch/arm/mach-exynos/include/mach/debug-macro.S
index 6c857ff0b5d8..e0c86ea475e7 100644
--- a/arch/arm/mach-exynos/include/mach/debug-macro.S
+++ b/arch/arm/mach-exynos/include/mach/debug-macro.S
@@ -21,10 +21,9 @@
          */
 
         .macro addruart, rp, rv, tmp
-                mov     \rp, #0x10000000
-                ldr     \rp, [\rp, #0x0]
-                and     \rp, \rp, #0xf00000
-                teq     \rp, #0x500000          @@ EXYNOS5
+                mrc     p15, 0, \tmp, c0, c0, 0
+                and     \tmp, \tmp, #0xf0
+                teq     \tmp, #0xf0             @@ A15
                 ldreq   \rp, =EXYNOS5_PA_UART
                 movne   \rp, #EXYNOS4_PA_UART   @@ EXYNOS4
                 ldr     \rv, =S3C_VA_UART
diff --git a/arch/arm/mach-exynos/include/mach/irqs.h b/arch/arm/mach-exynos/include/mach/irqs.h
index 9bee8535d9e0..591e78521a9f 100644
--- a/arch/arm/mach-exynos/include/mach/irqs.h
+++ b/arch/arm/mach-exynos/include/mach/irqs.h
@@ -212,6 +212,8 @@
 #define IRQ_MFC                         EXYNOS4_IRQ_MFC
 #define IRQ_SDO                         EXYNOS4_IRQ_SDO
 
+#define IRQ_I2S0                        EXYNOS4_IRQ_I2S0
+
 #define IRQ_ADC                         EXYNOS4_IRQ_ADC0
 #define IRQ_TC                          EXYNOS4_IRQ_PEN0
 
diff --git a/arch/arm/mach-exynos/include/mach/map.h b/arch/arm/mach-exynos/include/mach/map.h
index 024d38ff1718..6e6d11ff352a 100644
--- a/arch/arm/mach-exynos/include/mach/map.h
+++ b/arch/arm/mach-exynos/include/mach/map.h
@@ -89,6 +89,10 @@
 #define EXYNOS4_PA_MDMA1                0x12840000
 #define EXYNOS4_PA_PDMA0                0x12680000
 #define EXYNOS4_PA_PDMA1                0x12690000
+#define EXYNOS5_PA_MDMA0                0x10800000
+#define EXYNOS5_PA_MDMA1                0x11C10000
+#define EXYNOS5_PA_PDMA0                0x121A0000
+#define EXYNOS5_PA_PDMA1                0x121B0000
 
 #define EXYNOS4_PA_SYSMMU_MDMA          0x10A40000
 #define EXYNOS4_PA_SYSMMU_SSS           0x10A50000
diff --git a/arch/arm/mach-exynos/include/mach/regs-clock.h b/arch/arm/mach-exynos/include/mach/regs-clock.h
index e141c1fd68d8..d9578a58ae7f 100644
--- a/arch/arm/mach-exynos/include/mach/regs-clock.h
+++ b/arch/arm/mach-exynos/include/mach/regs-clock.h
@@ -255,9 +255,15 @@
 
 /* For EXYNOS5250 */
 
+#define EXYNOS5_APLL_LOCK                       EXYNOS_CLKREG(0x00000)
 #define EXYNOS5_APLL_CON0                       EXYNOS_CLKREG(0x00100)
 #define EXYNOS5_CLKSRC_CPU                      EXYNOS_CLKREG(0x00200)
+#define EXYNOS5_CLKMUX_STATCPU                  EXYNOS_CLKREG(0x00400)
 #define EXYNOS5_CLKDIV_CPU0                     EXYNOS_CLKREG(0x00500)
+#define EXYNOS5_CLKDIV_CPU1                     EXYNOS_CLKREG(0x00504)
+#define EXYNOS5_CLKDIV_STATCPU0                 EXYNOS_CLKREG(0x00600)
+#define EXYNOS5_CLKDIV_STATCPU1                 EXYNOS_CLKREG(0x00604)
+
 #define EXYNOS5_MPLL_CON0                       EXYNOS_CLKREG(0x04100)
 #define EXYNOS5_CLKSRC_CORE1                    EXYNOS_CLKREG(0x04204)
 
diff --git a/arch/arm/mach-exynos/include/mach/uncompress.h b/arch/arm/mach-exynos/include/mach/uncompress.h
index 493f4f365ddf..2979995d5a6a 100644
--- a/arch/arm/mach-exynos/include/mach/uncompress.h
+++ b/arch/arm/mach-exynos/include/mach/uncompress.h
@@ -20,9 +20,24 @@ volatile u8 *uart_base;
 
 #include <plat/uncompress.h>
 
+static unsigned int __raw_readl(unsigned int ptr)
+{
+        return *((volatile unsigned int *)ptr);
+}
+
 static void arch_detect_cpu(void)
 {
-        if (machine_is_smdk5250())
+        u32 chip_id = __raw_readl(EXYNOS_PA_CHIPID);
+
+        /*
+         * product_id is bits 31:12
+         *    bits 23:20 describe the exynosX family
+         *
+         */
+        chip_id >>= 20;
+        chip_id &= 0xf;
+
+        if (chip_id == 0x5)
                 uart_base = (volatile u8 *)EXYNOS5_PA_UART + (S3C_UART_OFFSET * CONFIG_S3C_LOWLEVEL_UART_PORT);
         else
                 uart_base = (volatile u8 *)EXYNOS4_PA_UART + (S3C_UART_OFFSET * CONFIG_S3C_LOWLEVEL_UART_PORT);
diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
index 0d26f50081ad..4711c8920e37 100644
--- a/arch/arm/mach-exynos/mach-exynos5-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
@@ -45,7 +45,7 @@ static const struct of_dev_auxdata exynos5250_auxdata_lookup[] __initconst = {
                                 "exynos4210-uart.3", NULL),
         OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_PDMA0, "dma-pl330.0", NULL),
         OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_PDMA1, "dma-pl330.1", NULL),
-        OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_PDMA1, "dma-pl330.2", NULL),
+        OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_MDMA1, "dma-pl330.2", NULL),
         {},
 };
 
diff --git a/arch/arm/mach-exynos/mach-nuri.c b/arch/arm/mach-exynos/mach-nuri.c
index b3982c867c9c..ed90aef404c3 100644
--- a/arch/arm/mach-exynos/mach-nuri.c
+++ b/arch/arm/mach-exynos/mach-nuri.c
@@ -112,6 +112,7 @@ static struct s3c_sdhci_platdata nuri_hsmmc0_data __initdata = {
         .host_caps              = (MMC_CAP_8_BIT_DATA | MMC_CAP_4_BIT_DATA |
                                 MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED |
                                 MMC_CAP_ERASE),
+        .host_caps2             = MMC_CAP2_BROKEN_VOLTAGE,
         .cd_type                = S3C_SDHCI_CD_PERMANENT,
         .clk_type               = S3C_SDHCI_CLK_DIV_EXTERNAL,
 };
@@ -307,49 +308,7 @@ static struct i2c_board_info i2c1_devs[] __initdata = {
 };
 
 /* TSP */
-static u8 mxt_init_vals[] = {
-        /* MXT_GEN_COMMAND(6) */
-        0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-        /* MXT_GEN_POWER(7) */
-        0x20, 0xff, 0x32,
-        /* MXT_GEN_ACQUIRE(8) */
-        0x0a, 0x00, 0x05, 0x00, 0x00, 0x00, 0x09, 0x23,
-        /* MXT_TOUCH_MULTI(9) */
-        0x00, 0x00, 0x00, 0x13, 0x0b, 0x00, 0x00, 0x00, 0x02, 0x00,
-        0x00, 0x01, 0x01, 0x0e, 0x0a, 0x0a, 0x0a, 0x0a, 0x00, 0x00,
-        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-        0x00,
-        /* MXT_TOUCH_KEYARRAY(15) */
-        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00,
-        0x00,
-        /* MXT_SPT_GPIOPWM(19) */
-        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-        0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-        /* MXT_PROCI_GRIPFACE(20) */
-        0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50, 0x28, 0x04,
-        0x0f, 0x0a,
-        /* MXT_PROCG_NOISE(22) */
-        0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x23, 0x00,
-        0x00, 0x05, 0x0f, 0x19, 0x23, 0x2d, 0x03,
-        /* MXT_TOUCH_PROXIMITY(23) */
-        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-        0x00, 0x00, 0x00, 0x00, 0x00,
-        /* MXT_PROCI_ONETOUCH(24) */
-        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-        /* MXT_SPT_SELFTEST(25) */
-        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-        0x00, 0x00, 0x00, 0x00,
-        /* MXT_PROCI_TWOTOUCH(27) */
-        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-        /* MXT_SPT_CTECONFIG(28) */
-        0x00, 0x00, 0x02, 0x08, 0x10, 0x00,
-};
-
 static struct mxt_platform_data mxt_platform_data = {
-        .config                 = mxt_init_vals,
-        .config_length          = ARRAY_SIZE(mxt_init_vals),
-
         .x_line                 = 18,
         .y_line                 = 11,
         .x_size                 = 1024,
@@ -571,7 +530,7 @@ static struct regulator_init_data __initdata max8997_ldo7_data = {
 
 static struct regulator_init_data __initdata max8997_ldo8_data = {
         .constraints    = {
-                .name           = "VUSB/VDAC_3.3V_C210",
+                .name           = "VUSB+VDAC_3.3V_C210",
                 .min_uV         = 3300000,
                 .max_uV         = 3300000,
                 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
@@ -1347,6 +1306,7 @@ static struct platform_device *nuri_devices[] __initdata = {
 
 static void __init nuri_map_io(void)
 {
+        clk_xusbxti.rate = 24000000;
         exynos_init_io(NULL, 0);
         s3c24xx_init_clocks(24000000);
         s3c24xx_init_uarts(nuri_uartcfgs, ARRAY_SIZE(nuri_uartcfgs));
@@ -1379,7 +1339,6 @@ static void __init nuri_machine_init(void)
         nuri_camera_init();
 
         nuri_ehci_init();
-        clk_xusbxti.rate = 24000000;
 
         /* Last */
         platform_add_devices(nuri_devices, ARRAY_SIZE(nuri_devices));
diff --git a/arch/arm/mach-exynos/mach-universal_c210.c b/arch/arm/mach-exynos/mach-universal_c210.c
index 6bb9dbdd73fd..a34036eb8ba2 100644
--- a/arch/arm/mach-exynos/mach-universal_c210.c
+++ b/arch/arm/mach-exynos/mach-universal_c210.c
@@ -29,6 +29,7 @@
 #include <asm/mach-types.h>
 
 #include <plat/regs-serial.h>
+#include <plat/clock.h>
 #include <plat/cpu.h>
 #include <plat/devs.h>
 #include <plat/iic.h>
@@ -39,6 +40,7 @@
 #include <plat/pd.h>
 #include <plat/regs-fb-v4.h>
 #include <plat/fimc-core.h>
+#include <plat/s5p-time.h>
 #include <plat/camport.h>
 #include <plat/mipi_csis.h>
 
@@ -746,6 +748,7 @@ static struct s3c_sdhci_platdata universal_hsmmc0_data __initdata = {
         .max_width              = 8,
         .host_caps              = (MMC_CAP_8_BIT_DATA | MMC_CAP_4_BIT_DATA |
                                 MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED),
+        .host_caps2             = MMC_CAP2_BROKEN_VOLTAGE,
         .cd_type                = S3C_SDHCI_CD_PERMANENT,
         .clk_type               = S3C_SDHCI_CLK_DIV_EXTERNAL,
 };
@@ -1057,9 +1060,11 @@ static struct platform_device *universal_devices[] __initdata = {
 
 static void __init universal_map_io(void)
 {
+        clk_xusbxti.rate = 24000000;
         exynos_init_io(NULL, 0);
         s3c24xx_init_clocks(24000000);
         s3c24xx_init_uarts(universal_uartcfgs, ARRAY_SIZE(universal_uartcfgs));
+        s5p_set_timer_source(S5P_PWM2, S5P_PWM4);
 }
 
 static void s5p_tv_setup(void)
@@ -1110,7 +1115,7 @@ MACHINE_START(UNIVERSAL_C210, "UNIVERSAL_C210")
         .map_io         = universal_map_io,
         .handle_irq     = gic_handle_irq,
         .init_machine   = universal_machine_init,
-        .timer          = &exynos4_timer,
+        .timer          = &s5p_timer,
         .reserve        = &universal_reserve,
         .restart        = exynos4_restart,
 MACHINE_END
diff --git a/arch/arm/mach-imx/clock-imx27.c b/arch/arm/mach-imx/clock-imx27.c
index b9a95ed75553..98e04f5a87dd 100644
--- a/arch/arm/mach-imx/clock-imx27.c
+++ b/arch/arm/mach-imx/clock-imx27.c
@@ -662,6 +662,7 @@ static struct clk_lookup lookups[] = {
         _REGISTER_CLOCK(NULL, "dma", dma_clk)
         _REGISTER_CLOCK(NULL, "rtic", rtic_clk)
         _REGISTER_CLOCK(NULL, "brom", brom_clk)
+        _REGISTER_CLOCK(NULL, "emma", emma_clk)
         _REGISTER_CLOCK("m2m-emmaprp.0", NULL, emma_clk)
         _REGISTER_CLOCK(NULL, "slcdc", slcdc_clk)
         _REGISTER_CLOCK("imx27-fec.0", NULL, fec_clk)
diff --git a/arch/arm/mach-imx/clock-imx35.c b/arch/arm/mach-imx/clock-imx35.c
index 1e279af656ad..e56c1a83eee3 100644
--- a/arch/arm/mach-imx/clock-imx35.c
+++ b/arch/arm/mach-imx/clock-imx35.c
@@ -483,7 +483,7 @@ static struct clk_lookup lookups[] = {
         _REGISTER_CLOCK("imx2-wdt.0", NULL, wdog_clk)
         _REGISTER_CLOCK(NULL, "max", max_clk)
         _REGISTER_CLOCK(NULL, "audmux", audmux_clk)
-        _REGISTER_CLOCK(NULL, "csi", csi_clk)
+        _REGISTER_CLOCK("mx3-camera.0", NULL, csi_clk)
         _REGISTER_CLOCK(NULL, "iim", iim_clk)
         _REGISTER_CLOCK(NULL, "gpu2d", gpu2d_clk)
         _REGISTER_CLOCK("mxc_nand.0", NULL, nfc_clk)
diff --git a/arch/arm/mach-imx/imx27-dt.c b/arch/arm/mach-imx/imx27-dt.c
index 861ceb8232d6..ed38d03c61f2 100644
--- a/arch/arm/mach-imx/imx27-dt.c
+++ b/arch/arm/mach-imx/imx27-dt.c
@@ -35,7 +35,7 @@ static const struct of_dev_auxdata imx27_auxdata_lookup[] __initconst = {
 static int __init imx27_avic_add_irq_domain(struct device_node *np,
                                 struct device_node *interrupt_parent)
 {
-        irq_domain_add_simple(np, 0);
+        irq_domain_add_legacy(np, 64, 0, 0, &irq_domain_simple_ops, NULL);
         return 0;
 }
 
@@ -44,7 +44,9 @@ static int __init imx27_gpio_add_irq_domain(struct device_node *np,
 {
         static int gpio_irq_base = MXC_GPIO_IRQ_START + ARCH_NR_GPIOS;
 
-        irq_domain_add_simple(np, gpio_irq_base);
+        gpio_irq_base -= 32;
+        irq_domain_add_legacy(np, 32, gpio_irq_base, 0, &irq_domain_simple_ops,
+                                NULL);
 
         return 0;
 }
diff --git a/arch/arm/mach-imx/mach-armadillo5x0.c b/arch/arm/mach-imx/mach-armadillo5x0.c
index 27bc27e6ea41..c650145d1646 100644
--- a/arch/arm/mach-imx/mach-armadillo5x0.c
+++ b/arch/arm/mach-imx/mach-armadillo5x0.c
@@ -38,6 +38,8 @@
 #include <linux/usb/otg.h>
 #include <linux/usb/ulpi.h>
 #include <linux/delay.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/fixed.h>
 
 #include <mach/hardware.h>
 #include <asm/mach-types.h>
@@ -479,6 +481,11 @@ static struct platform_device *devices[] __initdata = {
         &armadillo5x0_smc911x_device,
 };
 
+static struct regulator_consumer_supply dummy_supplies[] = {
+        REGULATOR_SUPPLY("vdd33a", "smsc911x"),
+        REGULATOR_SUPPLY("vddvario", "smsc911x"),
+};
+
 /*
  * Perform board specific initializations
  */
@@ -489,6 +496,8 @@ static void __init armadillo5x0_init(void)
         mxc_iomux_setup_multiple_pins(armadillo5x0_pins,
                         ARRAY_SIZE(armadillo5x0_pins), "armadillo5x0");
 
+        regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
+
         platform_add_devices(devices, ARRAY_SIZE(devices));
         imx_add_gpio_keys(&armadillo5x0_button_data);
         imx31_add_imx_i2c1(NULL);
diff --git a/arch/arm/mach-imx/mach-kzm_arm11_01.c b/arch/arm/mach-imx/mach-kzm_arm11_01.c
index fc78e8071cd1..15a26e908260 100644
--- a/arch/arm/mach-imx/mach-kzm_arm11_01.c
+++ b/arch/arm/mach-imx/mach-kzm_arm11_01.c
@@ -24,6 +24,8 @@
 #include <linux/serial_8250.h>
 #include <linux/smsc911x.h>
 #include <linux/types.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/fixed.h>
 
 #include <asm/irq.h>
 #include <asm/mach-types.h>
@@ -166,6 +168,11 @@ static struct platform_device kzm_smsc9118_device = {
                           },
 };
 
+static struct regulator_consumer_supply dummy_supplies[] = {
+        REGULATOR_SUPPLY("vdd33a", "smsc911x"),
+        REGULATOR_SUPPLY("vddvario", "smsc911x"),
+};
+
 static int __init kzm_init_smsc9118(void)
 {
         /*
@@ -175,6 +182,8 @@ static int __init kzm_init_smsc9118(void)
         gpio_request(IOMUX_TO_GPIO(MX31_PIN_GPIO1_2), "smsc9118-int");
         gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_GPIO1_2));
 
+        regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
+
         return platform_device_register(&kzm_smsc9118_device);
 }
 #else
diff --git a/arch/arm/mach-imx/mach-mx31lilly.c b/arch/arm/mach-imx/mach-mx31lilly.c
index 02401bbd6d53..83714b0cc290 100644
--- a/arch/arm/mach-imx/mach-mx31lilly.c
+++ b/arch/arm/mach-imx/mach-mx31lilly.c
@@ -34,6 +34,8 @@
 #include <linux/mfd/mc13783.h>
 #include <linux/usb/otg.h>
 #include <linux/usb/ulpi.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/fixed.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -242,6 +244,11 @@ static struct platform_device *devices[] __initdata = {
 static int mx31lilly_baseboard;
 core_param(mx31lilly_baseboard, mx31lilly_baseboard, int, 0444);
 
+static struct regulator_consumer_supply dummy_supplies[] = {
+        REGULATOR_SUPPLY("vdd33a", "smsc911x"),
+        REGULATOR_SUPPLY("vddvario", "smsc911x"),
+};
+
 static void __init mx31lilly_board_init(void)
 {
         imx31_soc_init();
@@ -280,6 +287,8 @@ static void __init mx31lilly_board_init(void)
         imx31_add_spi_imx1(&spi1_pdata);
         spi_register_board_info(&mc13783_dev, 1);
 
+        regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
+
         platform_add_devices(devices, ARRAY_SIZE(devices));
 
         /* USB */
diff --git a/arch/arm/mach-imx/mach-mx31lite.c b/arch/arm/mach-imx/mach-mx31lite.c
index ef80751712e7..0abef5f13df5 100644
--- a/arch/arm/mach-imx/mach-mx31lite.c
+++ b/arch/arm/mach-imx/mach-mx31lite.c
@@ -29,6 +29,8 @@
 #include <linux/usb/ulpi.h>
 #include <linux/mtd/physmap.h>
 #include <linux/delay.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/fixed.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -226,6 +228,11 @@ void __init mx31lite_map_io(void)
 static int mx31lite_baseboard;
 core_param(mx31lite_baseboard, mx31lite_baseboard, int, 0444);
 
+static struct regulator_consumer_supply dummy_supplies[] = {
+        REGULATOR_SUPPLY("vdd33a", "smsc911x"),
+        REGULATOR_SUPPLY("vddvario", "smsc911x"),
+};
+
 static void __init mx31lite_init(void)
 {
         int ret;
@@ -259,6 +266,8 @@ static void __init mx31lite_init(void)
         if (usbh2_pdata.otg)
                 imx31_add_mxc_ehci_hs(2, &usbh2_pdata);
 
+        regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
+
         /* SMSC9117 IRQ pin */
         ret = gpio_request(IOMUX_TO_GPIO(MX31_PIN_SFS6), "sms9117-irq");
         if (ret)
diff --git a/arch/arm/mach-imx/mach-mx35_3ds.c b/arch/arm/mach-imx/mach-mx35_3ds.c
index e14291d89e4f..6ae51c6b95b7 100644
--- a/arch/arm/mach-imx/mach-mx35_3ds.c
+++ b/arch/arm/mach-imx/mach-mx35_3ds.c
@@ -97,7 +97,7 @@ static struct i2c_board_info __initdata i2c_devices_3ds[] = {
 static int lcd_power_gpio = -ENXIO;
 
 static int mc9s08dz60_gpiochip_match(struct gpio_chip *chip,
-                                                     void *data)
+                                                     const void *data)
 {
         return !strcmp(chip->label, data);
 }
diff --git a/arch/arm/mach-imx/mach-mx53_ard.c b/arch/arm/mach-imx/mach-mx53_ard.c
index 753f4fc9ec04..05641980dc5e 100644
--- a/arch/arm/mach-imx/mach-mx53_ard.c
+++ b/arch/arm/mach-imx/mach-mx53_ard.c
@@ -23,6 +23,8 @@
 #include <linux/delay.h>
 #include <linux/gpio.h>
 #include <linux/smsc911x.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/fixed.h>
 
 #include <mach/common.h>
 #include <mach/hardware.h>
@@ -214,6 +216,11 @@ static int weim_cs_config(void)
         return 0;
 }
 
+static struct regulator_consumer_supply dummy_supplies[] = {
+        REGULATOR_SUPPLY("vdd33a", "smsc911x"),
+        REGULATOR_SUPPLY("vddvario", "smsc911x"),
+};
+
 void __init imx53_ard_common_init(void)
 {
         mxc_iomux_v3_setup_multiple_pads(mx53_ard_pads,
@@ -232,6 +239,7 @@ static void __init mx53_ard_board_init(void)
 
         imx53_ard_common_init();
         mx53_ard_io_init();
+        regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
         platform_add_devices(devices, ARRAY_SIZE(devices));
 
         imx53_add_sdhci_esdhc_imx(0, &mx53_ard_sd1_data);
diff --git a/arch/arm/mach-imx/mm-imx5.c b/arch/arm/mach-imx/mm-imx5.c
index 05250aed61fb..e10f3914fcfe 100644
--- a/arch/arm/mach-imx/mm-imx5.c
+++ b/arch/arm/mach-imx/mm-imx5.c
@@ -35,7 +35,7 @@ static void imx5_idle(void)
         }
         clk_enable(gpc_dvfs_clk);
         mx5_cpu_lp_set(WAIT_UNCLOCKED_POWER_OFF);
-        if (tzic_enable_wake() != 0)
+        if (!tzic_enable_wake())
                 cpu_do_idle();
         clk_disable(gpc_dvfs_clk);
 }
diff --git a/arch/arm/mach-kirkwood/board-dt.c b/arch/arm/mach-kirkwood/board-dt.c
index 1c672d9e6656..f7fe1b9f3170 100644
--- a/arch/arm/mach-kirkwood/board-dt.c
+++ b/arch/arm/mach-kirkwood/board-dt.c
@@ -14,6 +14,7 @@
 #include <linux/init.h>
 #include <linux/of.h>
 #include <linux/of_platform.h>
+#include <linux/kexec.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
 #include <mach/bridge-regs.h>
diff --git a/arch/arm/mach-msm/board-halibut.c b/arch/arm/mach-msm/board-halibut.c
index 3698a370d636..26aac363a064 100644
--- a/arch/arm/mach-msm/board-halibut.c
+++ b/arch/arm/mach-msm/board-halibut.c
@@ -86,9 +86,6 @@ static void __init halibut_init(void)
 static void __init halibut_fixup(struct tag *tags, char **cmdline,
                                  struct meminfo *mi)
 {
-        mi->nr_banks=1;
-        mi->bank[0].start = PHYS_OFFSET;
-        mi->bank[0].size = (101*1024*1024);
 }
 
 static void __init halibut_map_io(void)
diff --git a/arch/arm/mach-msm/board-msm8x60.c b/arch/arm/mach-msm/board-msm8x60.c
index 962e71169750..fb3496a52ef4 100644
--- a/arch/arm/mach-msm/board-msm8x60.c
+++ b/arch/arm/mach-msm/board-msm8x60.c
@@ -17,6 +17,7 @@
 #include <linux/irqdomain.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/memblock.h>
 
@@ -49,10 +50,22 @@ static void __init msm8x60_map_io(void)
         msm_map_msm8x60_io();
 }
 
+#ifdef CONFIG_OF
+static struct of_device_id msm_dt_gic_match[] __initdata = {
+        { .compatible = "qcom,msm-8660-qgic", .data = gic_of_init },
+        {}
+};
+#endif
+
 static void __init msm8x60_init_irq(void)
 {
-        gic_init(0, GIC_PPI_START, MSM_QGIC_DIST_BASE,
-                 (void *)MSM_QGIC_CPU_BASE);
+        if (!of_have_populated_dt())
+                gic_init(0, GIC_PPI_START, MSM_QGIC_DIST_BASE,
+                         (void *)MSM_QGIC_CPU_BASE);
+#ifdef CONFIG_OF
+        else
+                of_irq_init(msm_dt_gic_match);
+#endif
 
         /* Edge trigger PPIs except AVS_SVICINT and AVS_SVICINTSWDONE */
         writel(0xFFFFD7FF, MSM_QGIC_DIST_BASE + GIC_DIST_CONFIG + 4);
@@ -73,16 +86,8 @@ static struct of_dev_auxdata msm_auxdata_lookup[] __initdata = {
         {}
 };
 
-static struct of_device_id msm_dt_gic_match[] __initdata = {
-        { .compatible = "qcom,msm-8660-qgic", },
-        {}
-};
-
 static void __init msm8x60_dt_init(void)
 {
-        irq_domain_generate_simple(msm_dt_gic_match, MSM8X60_QGIC_DIST_PHYS,
-                                GIC_SPI_START);
-
         if (of_machine_is_compatible("qcom,msm8660-surf")) {
                 printk(KERN_INFO "Init surf UART registers\n");
                 msm8x60_init_uart12dm();
diff --git a/arch/arm/mach-msm/board-trout-panel.c b/arch/arm/mach-msm/board-trout-panel.c
index 25105c1027fe..89bf6b426699 100644
--- a/arch/arm/mach-msm/board-trout-panel.c
+++ b/arch/arm/mach-msm/board-trout-panel.c
@@ -12,6 +12,7 @@
 
 #include <asm/io.h>
 #include <asm/mach-types.h>
+#include <asm/system_info.h>
 
 #include <mach/msm_fb.h>
 #include <mach/vreg.h>
diff --git a/arch/arm/mach-msm/board-trout.c b/arch/arm/mach-msm/board-trout.c
index 5414f76ec0a9..d4060a37e23d 100644
--- a/arch/arm/mach-msm/board-trout.c
+++ b/arch/arm/mach-msm/board-trout.c
@@ -19,6 +19,7 @@
 #include <linux/platform_device.h>
 #include <linux/clkdev.h>
 
+#include <asm/system_info.h>
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
diff --git a/arch/arm/mach-msm/include/mach/uncompress.h b/arch/arm/mach-msm/include/mach/uncompress.h
index 169a84007456..c14011fe832d 100644
--- a/arch/arm/mach-msm/include/mach/uncompress.h
+++ b/arch/arm/mach-msm/include/mach/uncompress.h
@@ -16,6 +16,7 @@
 #ifndef __ASM_ARCH_MSM_UNCOMPRESS_H
 #define __ASM_ARCH_MSM_UNCOMPRESS_H
 
+#include <asm/barrier.h>
 #include <asm/processor.h>
 #include <mach/msm_iomap.h>
 
diff --git a/arch/arm/mach-msm/proc_comm.c b/arch/arm/mach-msm/proc_comm.c
index 67e701c7f183..9980dc736e7b 100644
--- a/arch/arm/mach-msm/proc_comm.c
+++ b/arch/arm/mach-msm/proc_comm.c
@@ -121,7 +121,7 @@ int msm_proc_comm(unsigned cmd, unsigned *data1, unsigned *data2)
  * and unknown state. This function should be called early to
  * wait on the ARM9.
  */
-void __init proc_comm_boot_wait(void)
+void __devinit proc_comm_boot_wait(void)
 {
         void __iomem *base = MSM_SHARED_RAM_BASE;
  
diff --git a/arch/arm/mach-msm/smd_debug.c b/arch/arm/mach-msm/smd_debug.c
index 0c56a5aaf588..c56df9e932ae 100644
--- a/arch/arm/mach-msm/smd_debug.c
+++ b/arch/arm/mach-msm/smd_debug.c
@@ -203,15 +203,9 @@ static ssize_t debug_read(struct file *file, char __user *buf,
         return simple_read_from_buffer(buf, count, ppos, debug_buffer, bsize);
 }
 
-static int debug_open(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
-
 static const struct file_operations debug_ops = {
         .read = debug_read,
-        .open = debug_open,
+        .open = simple_open,
         .llseek = default_llseek,
 };
 
diff --git a/arch/arm/mach-omap1/ams-delta-fiq.c b/arch/arm/mach-omap1/ams-delta-fiq.c
index fcce7ff37630..cfd98b186fcc 100644
--- a/arch/arm/mach-omap1/ams-delta-fiq.c
+++ b/arch/arm/mach-omap1/ams-delta-fiq.c
@@ -48,7 +48,7 @@ static irqreturn_t deferred_fiq(int irq, void *dev_id)
         struct irq_chip *irq_chip = NULL;
         int gpio, irq_num, fiq_count;
 
-        irq_desc = irq_to_desc(IH_GPIO_BASE);
+        irq_desc = irq_to_desc(gpio_to_irq(AMS_DELTA_GPIO_PIN_KEYBRD_CLK));
         if (irq_desc)
                 irq_chip = irq_desc->irq_data.chip;
 
diff --git a/arch/arm/mach-omap1/include/mach/io.h b/arch/arm/mach-omap1/include/mach/io.h
new file mode 100644
index 000000000000..ce4f8005b26f
--- /dev/null
+++ b/arch/arm/mach-omap1/include/mach/io.h
@@ -0,0 +1,45 @@
+/*
+ * arch/arm/mach-omap1/include/mach/io.h
+ *
+ * IO definitions for TI OMAP processors and boards
+ *
+ * Copied from arch/arm/mach-sa1100/include/mach/io.h
+ * Copyright (C) 1997-1999 Russell King
+ *
+ * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * 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.
+ *
+ * Modifications:
+ *  06-12-1997  RMK     Created.
+ *  07-04-1999  RMK     Major cleanup
+ */
+
+#ifndef __ASM_ARM_ARCH_IO_H
+#define __ASM_ARM_ARCH_IO_H
+
+#define IO_SPACE_LIMIT 0xffffffff
+
+/*
+ * We don't actually have real ISA nor PCI buses, but there is so many
+ * drivers out there that might just work if we fake them...
+ */
+#define __io(a)         __typesafe_io(a)
+
+#endif
diff --git a/arch/arm/mach-omap1/mux.c b/arch/arm/mach-omap1/mux.c
index 087dba0df47e..e9cc52d4cb28 100644
--- a/arch/arm/mach-omap1/mux.c
+++ b/arch/arm/mach-omap1/mux.c
@@ -27,6 +27,7 @@
 #include <linux/io.h>
 #include <linux/spinlock.h>
 
+#include <mach/hardware.h>
 
 #include <plat/mux.h>
 
diff --git a/arch/arm/mach-omap1/timer.c b/arch/arm/mach-omap1/timer.c
index 6e90665a7c47..fb202af01d0d 100644
--- a/arch/arm/mach-omap1/timer.c
+++ b/arch/arm/mach-omap1/timer.c
@@ -47,9 +47,9 @@ static int omap1_dm_timer_set_src(struct platform_device *pdev,
         int n = (pdev->id - 1) << 1;
         u32 l;
 
-        l = __raw_readl(MOD_CONF_CTRL_1) & ~(0x03 << n);
+        l = omap_readl(MOD_CONF_CTRL_1) & ~(0x03 << n);
         l |= source << n;
-        __raw_writel(l, MOD_CONF_CTRL_1);
+        omap_writel(l, MOD_CONF_CTRL_1);
 
         return 0;
 }
diff --git a/arch/arm/mach-omap2/board-4430sdp.c b/arch/arm/mach-omap2/board-4430sdp.c
index a39fc4bbd2b8..130ab00c09a2 100644
--- a/arch/arm/mach-omap2/board-4430sdp.c
+++ b/arch/arm/mach-omap2/board-4430sdp.c
@@ -20,6 +20,7 @@
 #include <linux/usb/otg.h>
 #include <linux/spi/spi.h>
 #include <linux/i2c/twl.h>
+#include <linux/mfd/twl6040.h>
 #include <linux/gpio_keys.h>
 #include <linux/regulator/machine.h>
 #include <linux/regulator/fixed.h>
@@ -560,7 +561,7 @@ static struct regulator_init_data sdp4430_vusim = {
         },
 };
 
-static struct twl4030_codec_data twl6040_codec = {
+static struct twl6040_codec_data twl6040_codec = {
         /* single-step ramp for headset and handsfree */
         .hs_left_step   = 0x0f,
         .hs_right_step  = 0x0f,
@@ -568,7 +569,7 @@ static struct twl4030_codec_data twl6040_codec = {
         .hf_right_step  = 0x1d,
 };
 
-static struct twl4030_vibra_data twl6040_vibra = {
+static struct twl6040_vibra_data twl6040_vibra = {
         .vibldrv_res = 8,
         .vibrdrv_res = 3,
         .viblmotor_res = 10,
@@ -577,16 +578,14 @@ static struct twl4030_vibra_data twl6040_vibra = {
         .vddvibr_uV = 0,        /* fixed volt supply - VBAT */
 };
 
-static struct twl4030_audio_data twl6040_audio = {
+static struct twl6040_platform_data twl6040_data = {
         .codec          = &twl6040_codec,
         .vibra          = &twl6040_vibra,
         .audpwron_gpio  = 127,
-        .naudint_irq    = OMAP44XX_IRQ_SYS_2N,
         .irq_base       = TWL6040_CODEC_IRQ_BASE,
 };
 
 static struct twl4030_platform_data sdp4430_twldata = {
-        .audio          = &twl6040_audio,
         /* Regulators */
         .vusim          = &sdp4430_vusim,
         .vaux1          = &sdp4430_vaux1,
@@ -617,7 +616,8 @@ static int __init omap4_i2c_init(void)
                         TWL_COMMON_REGULATOR_VCXIO |
                         TWL_COMMON_REGULATOR_VUSB |
                         TWL_COMMON_REGULATOR_CLK32KG);
-        omap4_pmic_init("twl6030", &sdp4430_twldata);
+        omap4_pmic_init("twl6030", &sdp4430_twldata,
+                        &twl6040_data, OMAP44XX_IRQ_SYS_2N);
         omap_register_i2c_bus(2, 400, NULL, 0);
         omap_register_i2c_bus(3, 400, sdp4430_i2c_3_boardinfo,
                                 ARRAY_SIZE(sdp4430_i2c_3_boardinfo));
diff --git a/arch/arm/mach-omap2/board-cm-t35.c b/arch/arm/mach-omap2/board-cm-t35.c
index 41b0a2fe0b04..909a8b91b564 100644
--- a/arch/arm/mach-omap2/board-cm-t35.c
+++ b/arch/arm/mach-omap2/board-cm-t35.c
@@ -26,6 +26,7 @@
 
 #include <linux/i2c/at24.h>
 #include <linux/i2c/twl.h>
+#include <linux/regulator/fixed.h>
 #include <linux/regulator/machine.h>
 #include <linux/mmc/host.h>
 
@@ -81,8 +82,23 @@ static struct omap_smsc911x_platform_data sb_t35_smsc911x_cfg = {
         .flags          = SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS,
 };
 
+static struct regulator_consumer_supply cm_t35_smsc911x_supplies[] = {
+        REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
+        REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
+};
+
+static struct regulator_consumer_supply sb_t35_smsc911x_supplies[] = {
+        REGULATOR_SUPPLY("vddvario", "smsc911x.1"),
+        REGULATOR_SUPPLY("vdd33a", "smsc911x.1"),
+};
+
 static void __init cm_t35_init_ethernet(void)
 {
+        regulator_register_fixed(0, cm_t35_smsc911x_supplies,
+                                 ARRAY_SIZE(cm_t35_smsc911x_supplies));
+        regulator_register_fixed(1, sb_t35_smsc911x_supplies,
+                                 ARRAY_SIZE(sb_t35_smsc911x_supplies));
+
         gpmc_smsc911x_init(&cm_t35_smsc911x_cfg);
         gpmc_smsc911x_init(&sb_t35_smsc911x_cfg);
 }
diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c
index 74e1687b5170..098d183a0086 100644
--- a/arch/arm/mach-omap2/board-generic.c
+++ b/arch/arm/mach-omap2/board-generic.c
@@ -137,7 +137,7 @@ static struct twl4030_platform_data sdp4430_twldata = {
 
 static void __init omap4_i2c_init(void)
 {
-        omap4_pmic_init("twl6030", &sdp4430_twldata);
+        omap4_pmic_init("twl6030", &sdp4430_twldata, NULL, 0);
 }
 
 static void __init omap4_init(void)
diff --git a/arch/arm/mach-omap2/board-igep0020.c b/arch/arm/mach-omap2/board-igep0020.c
index e558800adfdf..740cee9369ba 100644
--- a/arch/arm/mach-omap2/board-igep0020.c
+++ b/arch/arm/mach-omap2/board-igep0020.c
@@ -634,8 +634,14 @@ static void __init igep_wlan_bt_init(void)
 static inline void __init igep_wlan_bt_init(void) { }
 #endif
 
+static struct regulator_consumer_supply dummy_supplies[] = {
+        REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
+        REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
+};
+
 static void __init igep_init(void)
 {
+        regulator_register_fixed(1, dummy_supplies, ARRAY_SIZE(dummy_supplies));
         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 
         /* Get IGEP2 hardware revision */
diff --git a/arch/arm/mach-omap2/board-ldp.c b/arch/arm/mach-omap2/board-ldp.c
index d50a562adfa0..1b6049567ab4 100644
--- a/arch/arm/mach-omap2/board-ldp.c
+++ b/arch/arm/mach-omap2/board-ldp.c
@@ -22,6 +22,7 @@
 #include <linux/err.h>
 #include <linux/clk.h>
 #include <linux/spi/spi.h>
+#include <linux/regulator/fixed.h>
 #include <linux/regulator/machine.h>
 #include <linux/i2c/twl.h>
 #include <linux/io.h>
@@ -410,8 +411,14 @@ static struct mtd_partition ldp_nand_partitions[] = {
 
 };
 
+static struct regulator_consumer_supply dummy_supplies[] = {
+        REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
+        REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
+};
+
 static void __init omap_ldp_init(void)
 {
+        regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
         ldp_init_smsc911x();
         omap_i2c_init();
diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c
index 4c90f078abe1..49df12735b41 100644
--- a/arch/arm/mach-omap2/board-omap3evm.c
+++ b/arch/arm/mach-omap2/board-omap3evm.c
@@ -114,15 +114,6 @@ static struct omap_smsc911x_platform_data smsc911x_cfg = {
 
 static inline void __init omap3evm_init_smsc911x(void)
 {
-        struct clk *l3ck;
-        unsigned int rate;
-
-        l3ck = clk_get(NULL, "l3_ck");
-        if (IS_ERR(l3ck))
-                rate = 100000000;
-        else
-                rate = clk_get_rate(l3ck);
-
         /* Configure ethernet controller reset gpio */
         if (cpu_is_omap3430()) {
                 if (get_omap3_evm_rev() == OMAP3EVM_BOARD_GEN_1)
@@ -632,9 +623,15 @@ static void __init omap3_evm_wl12xx_init(void)
 #endif
 }
 
+static struct regulator_consumer_supply dummy_supplies[] = {
+        REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
+        REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
+};
+
 static void __init omap3_evm_init(void)
 {
         omap3_evm_get_revision();
+        regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
 
         if (cpu_is_omap3630())
                 omap3_mux_init(omap36x_board_mux, OMAP_PACKAGE_CBB);
diff --git a/arch/arm/mach-omap2/board-omap3logic.c b/arch/arm/mach-omap2/board-omap3logic.c
index 4a7d8c8a75da..9b3c141ff51b 100644
--- a/arch/arm/mach-omap2/board-omap3logic.c
+++ b/arch/arm/mach-omap2/board-omap3logic.c
@@ -23,6 +23,7 @@
 #include <linux/io.h>
 #include <linux/gpio.h>
 
+#include <linux/regulator/fixed.h>
 #include <linux/regulator/machine.h>
 
 #include <linux/i2c/twl.h>
@@ -188,8 +189,14 @@ static struct omap_board_mux board_mux[] __initdata = {
 };
 #endif
 
+static struct regulator_consumer_supply dummy_supplies[] = {
+        REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
+        REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
+};
+
 static void __init omap3logic_init(void)
 {
+        regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
         omap3torpedo_fix_pbias_voltage();
         omap3logic_i2c_init();
diff --git a/arch/arm/mach-omap2/board-omap3stalker.c b/arch/arm/mach-omap2/board-omap3stalker.c
index 641004380795..4dffc95bddd2 100644
--- a/arch/arm/mach-omap2/board-omap3stalker.c
+++ b/arch/arm/mach-omap2/board-omap3stalker.c
@@ -24,6 +24,7 @@
 #include <linux/input.h>
 #include <linux/gpio_keys.h>
 
+#include <linux/regulator/fixed.h>
 #include <linux/regulator/machine.h>
 #include <linux/i2c/twl.h>
 #include <linux/mmc/host.h>
@@ -72,15 +73,6 @@ static struct omap_smsc911x_platform_data smsc911x_cfg = {
 
 static inline void __init omap3stalker_init_eth(void)
 {
-        struct clk *l3ck;
-        unsigned int rate;
-
-        l3ck = clk_get(NULL, "l3_ck");
-        if (IS_ERR(l3ck))
-                rate = 100000000;
-        else
-                rate = clk_get_rate(l3ck);
-
         omap_mux_init_gpio(19, OMAP_PIN_INPUT_PULLUP);
         gpmc_smsc911x_init(&smsc911x_cfg);
 }
@@ -419,8 +411,14 @@ static struct omap_board_mux board_mux[] __initdata = {
 };
 #endif
 
+static struct regulator_consumer_supply dummy_supplies[] = {
+        REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
+        REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
+};
+
 static void __init omap3_stalker_init(void)
 {
+        regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
         omap3_mux_init(board_mux, OMAP_PACKAGE_CUS);
         omap_board_config = omap3_stalker_config;
         omap_board_config_size = ARRAY_SIZE(omap3_stalker_config);
diff --git a/arch/arm/mach-omap2/board-omap4panda.c b/arch/arm/mach-omap2/board-omap4panda.c
index d8c0e89f0126..1b782ba53433 100644
--- a/arch/arm/mach-omap2/board-omap4panda.c
+++ b/arch/arm/mach-omap2/board-omap4panda.c
@@ -25,6 +25,7 @@
 #include <linux/gpio.h>
 #include <linux/usb/otg.h>
 #include <linux/i2c/twl.h>
+#include <linux/mfd/twl6040.h>
 #include <linux/regulator/machine.h>
 #include <linux/regulator/fixed.h>
 #include <linux/wl12xx.h>
@@ -284,7 +285,7 @@ static int __init omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers)
         return 0;
 }
 
-static struct twl4030_codec_data twl6040_codec = {
+static struct twl6040_codec_data twl6040_codec = {
         /* single-step ramp for headset and handsfree */
         .hs_left_step   = 0x0f,
         .hs_right_step  = 0x0f,
@@ -292,17 +293,14 @@ static struct twl4030_codec_data twl6040_codec = {
         .hf_right_step  = 0x1d,
 };
 
-static struct twl4030_audio_data twl6040_audio = {
+static struct twl6040_platform_data twl6040_data = {
         .codec          = &twl6040_codec,
         .audpwron_gpio  = 127,
-        .naudint_irq    = OMAP44XX_IRQ_SYS_2N,
         .irq_base       = TWL6040_CODEC_IRQ_BASE,
 };
 
 /* Panda board uses the common PMIC configuration */
-static struct twl4030_platform_data omap4_panda_twldata = {
-        .audio          = &twl6040_audio,
-};
+static struct twl4030_platform_data omap4_panda_twldata;
 
 /*
  * Display monitor features are burnt in their EEPROM as EDID data. The EEPROM
@@ -326,7 +324,8 @@ static int __init omap4_panda_i2c_init(void)
                         TWL_COMMON_REGULATOR_VCXIO |
                         TWL_COMMON_REGULATOR_VUSB |
                         TWL_COMMON_REGULATOR_CLK32KG);
-        omap4_pmic_init("twl6030", &omap4_panda_twldata);
+        omap4_pmic_init("twl6030", &omap4_panda_twldata,
+                        &twl6040_data, OMAP44XX_IRQ_SYS_2N);
         omap_register_i2c_bus(2, 400, NULL, 0);
         /*
          * Bus 3 is attached to the DVI port where devices like the pico DLP
diff --git a/arch/arm/mach-omap2/board-overo.c b/arch/arm/mach-omap2/board-overo.c
index 668533e2a379..33aa3910b09e 100644
--- a/arch/arm/mach-omap2/board-overo.c
+++ b/arch/arm/mach-omap2/board-overo.c
@@ -498,10 +498,18 @@ static struct gpio overo_bt_gpios[] __initdata = {
         { OVERO_GPIO_BT_NRESET, GPIOF_OUT_INIT_HIGH,    "lcd bl enable" },
 };
 
+static struct regulator_consumer_supply dummy_supplies[] = {
+        REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
+        REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
+        REGULATOR_SUPPLY("vddvario", "smsc911x.1"),
+        REGULATOR_SUPPLY("vdd33a", "smsc911x.1"),
+};
+
 static void __init overo_init(void)
 {
         int ret;
 
+        regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
         omap_hsmmc_init(mmc);
         overo_i2c_init();
diff --git a/arch/arm/mach-omap2/board-zoom-debugboard.c b/arch/arm/mach-omap2/board-zoom-debugboard.c
index 1e8540eabde9..f64f44173061 100644
--- a/arch/arm/mach-omap2/board-zoom-debugboard.c
+++ b/arch/arm/mach-omap2/board-zoom-debugboard.c
@@ -14,6 +14,9 @@
 #include <linux/smsc911x.h>
 #include <linux/interrupt.h>
 
+#include <linux/regulator/fixed.h>
+#include <linux/regulator/machine.h>
+
 #include <plat/gpmc.h>
 #include <plat/gpmc-smsc911x.h>
 
@@ -117,11 +120,17 @@ static struct platform_device *zoom_devices[] __initdata = {
         &zoom_debugboard_serial_device,
 };
 
+static struct regulator_consumer_supply dummy_supplies[] = {
+        REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
+        REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
+};
+
 int __init zoom_debugboard_init(void)
 {
         if (!omap_zoom_debugboard_detect())
                 return 0;
 
+        regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
         zoom_init_smsc911x();
         zoom_init_quaduart();
         return platform_add_devices(zoom_devices, ARRAY_SIZE(zoom_devices));
diff --git a/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c b/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c
index 7072e0d651b1..3d9d746b221a 100644
--- a/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c
+++ b/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c
@@ -165,83 +165,3 @@ int omap2_select_table_rate(struct clk *clk, unsigned long rate)
 
         return 0;
 }
-
-#ifdef CONFIG_CPU_FREQ
-/*
- * Walk PRCM rate table and fillout cpufreq freq_table
- * XXX This should be replaced by an OPP layer in the near future
- */
-static struct cpufreq_frequency_table *freq_table;
-
-void omap2_clk_init_cpufreq_table(struct cpufreq_frequency_table **table)
-{
-        const struct prcm_config *prcm;
-        int i = 0;
-        int tbl_sz = 0;
-
-        if (!cpu_is_omap24xx())
-                return;
-
-        for (prcm = rate_table; prcm->mpu_speed; prcm++) {
-                if (!(prcm->flags & cpu_mask))
-                        continue;
-                if (prcm->xtal_speed != sclk->rate)
-                        continue;
-
-                /* don't put bypass rates in table */
-                if (prcm->dpll_speed == prcm->xtal_speed)
-                        continue;
-
-                tbl_sz++;
-        }
-
-        /*
-         * XXX Ensure that we're doing what CPUFreq expects for this error
-         * case and the following one
-         */
-        if (tbl_sz == 0) {
-                pr_warning("%s: no matching entries in rate_table\n",
-                           __func__);
-                return;
-        }
-
-        /* Include the CPUFREQ_TABLE_END terminator entry */
-        tbl_sz++;
-
-        freq_table = kzalloc(sizeof(struct cpufreq_frequency_table) * tbl_sz,
-                             GFP_ATOMIC);
-        if (!freq_table) {
-                pr_err("%s: could not kzalloc frequency table\n", __func__);
-                return;
-        }
-
-        for (prcm = rate_table; prcm->mpu_speed; prcm++) {
-                if (!(prcm->flags & cpu_mask))
-                        continue;
-                if (prcm->xtal_speed != sclk->rate)
-                        continue;
-
-                /* don't put bypass rates in table */
-                if (prcm->dpll_speed == prcm->xtal_speed)
-                        continue;
-
-                freq_table[i].index = i;
-                freq_table[i].frequency = prcm->mpu_speed / 1000;
-                i++;
-        }
-
-        freq_table[i].index = i;
-        freq_table[i].frequency = CPUFREQ_TABLE_END;
-
-        *table = &freq_table[0];
-}
-
-void omap2_clk_exit_cpufreq_table(struct cpufreq_frequency_table **table)
-{
-        if (!cpu_is_omap24xx())
-                return;
-
-        kfree(freq_table);
-}
-
-#endif
diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
index f57ed5baeccf..d9f4931513f9 100644
--- a/arch/arm/mach-omap2/clock.c
+++ b/arch/arm/mach-omap2/clock.c
@@ -536,10 +536,5 @@ struct clk_functions omap2_clk_functions = {
         .clk_set_rate           = omap2_clk_set_rate,
         .clk_set_parent         = omap2_clk_set_parent,
         .clk_disable_unused     = omap2_clk_disable_unused,
-#ifdef CONFIG_CPU_FREQ
-        /* These will be removed when the OPP code is integrated */
-        .clk_init_cpufreq_table = omap2_clk_init_cpufreq_table,
-        .clk_exit_cpufreq_table = omap2_clk_exit_cpufreq_table,
-#endif
 };
 
diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h
index b8c2a686481c..a1bb23a23351 100644
--- a/arch/arm/mach-omap2/clock.h
+++ b/arch/arm/mach-omap2/clock.h
@@ -146,14 +146,6 @@ extern const struct clksel_rate gpt_sys_rates[];
 extern const struct clksel_rate gfx_l3_rates[];
 extern const struct clksel_rate dsp_ick_rates[];
 
-#if defined(CONFIG_ARCH_OMAP2) && defined(CONFIG_CPU_FREQ)
-extern void omap2_clk_init_cpufreq_table(struct cpufreq_frequency_table **table);
-extern void omap2_clk_exit_cpufreq_table(struct cpufreq_frequency_table **table);
-#else
-#define omap2_clk_init_cpufreq_table    0
-#define omap2_clk_exit_cpufreq_table    0
-#endif
-
 extern const struct clkops clkops_omap2_iclk_dflt_wait;
 extern const struct clkops clkops_omap2_iclk_dflt;
 extern const struct clkops clkops_omap2_iclk_idle_only;
diff --git a/arch/arm/mach-omap2/clock3xxx_data.c b/arch/arm/mach-omap2/clock3xxx_data.c
index 480fb8f09aed..f4a626f7c79e 100644
--- a/arch/arm/mach-omap2/clock3xxx_data.c
+++ b/arch/arm/mach-omap2/clock3xxx_data.c
@@ -747,7 +747,7 @@ static struct clk dpll4_m3_ck = {
         .parent         = &dpll4_ck,
         .init           = &omap2_init_clksel_parent,
         .clksel_reg     = OMAP_CM_REGADDR(OMAP3430_DSS_MOD, CM_CLKSEL),
-        .clksel_mask    = OMAP3430_CLKSEL_TV_MASK,
+        .clksel_mask    = OMAP3630_CLKSEL_TV_MASK,
         .clksel         = dpll4_clksel,
         .clkdm_name     = "dpll4_clkdm",
         .recalc         = &omap2_clksel_recalc,
@@ -832,7 +832,7 @@ static struct clk dpll4_m4_ck = {
         .parent         = &dpll4_ck,
         .init           = &omap2_init_clksel_parent,
         .clksel_reg     = OMAP_CM_REGADDR(OMAP3430_DSS_MOD, CM_CLKSEL),
-        .clksel_mask    = OMAP3430_CLKSEL_DSS1_MASK,
+        .clksel_mask    = OMAP3630_CLKSEL_DSS1_MASK,
         .clksel         = dpll4_clksel,
         .clkdm_name     = "dpll4_clkdm",
         .recalc         = &omap2_clksel_recalc,
@@ -859,7 +859,7 @@ static struct clk dpll4_m5_ck = {
         .parent         = &dpll4_ck,
         .init           = &omap2_init_clksel_parent,
         .clksel_reg     = OMAP_CM_REGADDR(OMAP3430_CAM_MOD, CM_CLKSEL),
-        .clksel_mask    = OMAP3430_CLKSEL_CAM_MASK,
+        .clksel_mask    = OMAP3630_CLKSEL_CAM_MASK,
         .clksel         = dpll4_clksel,
         .clkdm_name     = "dpll4_clkdm",
         .set_rate       = &omap2_clksel_set_rate,
@@ -886,7 +886,7 @@ static struct clk dpll4_m6_ck = {
         .parent         = &dpll4_ck,
         .init           = &omap2_init_clksel_parent,
         .clksel_reg     = OMAP_CM_REGADDR(OMAP3430_EMU_MOD, CM_CLKSEL1),
-        .clksel_mask    = OMAP3430_DIV_DPLL4_MASK,
+        .clksel_mask    = OMAP3630_DIV_DPLL4_MASK,
         .clksel         = dpll4_clksel,
         .clkdm_name     = "dpll4_clkdm",
         .recalc         = &omap2_clksel_recalc,
@@ -1394,6 +1394,7 @@ static struct clk cpefuse_fck = {
         .name           = "cpefuse_fck",
         .ops            = &clkops_omap2_dflt,
         .parent         = &sys_ck,
+        .clkdm_name     = "core_l4_clkdm",
         .enable_reg     = OMAP_CM_REGADDR(CORE_MOD, OMAP3430ES2_CM_FCLKEN3),
         .enable_bit     = OMAP3430ES2_EN_CPEFUSE_SHIFT,
         .recalc         = &followparent_recalc,
@@ -1403,6 +1404,7 @@ static struct clk ts_fck = {
         .name           = "ts_fck",
         .ops            = &clkops_omap2_dflt,
         .parent         = &omap_32k_fck,
+        .clkdm_name     = "core_l4_clkdm",
         .enable_reg     = OMAP_CM_REGADDR(CORE_MOD, OMAP3430ES2_CM_FCLKEN3),
         .enable_bit     = OMAP3430ES2_EN_TS_SHIFT,
         .recalc         = &followparent_recalc,
@@ -1412,6 +1414,7 @@ static struct clk usbtll_fck = {
         .name           = "usbtll_fck",
         .ops            = &clkops_omap2_dflt_wait,
         .parent         = &dpll5_m2_ck,
+        .clkdm_name     = "core_l4_clkdm",
         .enable_reg     = OMAP_CM_REGADDR(CORE_MOD, OMAP3430ES2_CM_FCLKEN3),
         .enable_bit     = OMAP3430ES2_EN_USBTLL_SHIFT,
         .recalc         = &followparent_recalc,
@@ -1617,6 +1620,7 @@ static struct clk fshostusb_fck = {
         .name           = "fshostusb_fck",
         .ops            = &clkops_omap2_dflt_wait,
         .parent         = &core_48m_fck,
+        .clkdm_name     = "core_l4_clkdm",
         .enable_reg     = OMAP_CM_REGADDR(CORE_MOD, CM_FCLKEN1),
         .enable_bit     = OMAP3430ES1_EN_FSHOSTUSB_SHIFT,
         .recalc         = &followparent_recalc,
@@ -2043,6 +2047,7 @@ static struct clk omapctrl_ick = {
         .enable_reg     = OMAP_CM_REGADDR(CORE_MOD, CM_ICLKEN1),
         .enable_bit     = OMAP3430_EN_OMAPCTRL_SHIFT,
         .flags          = ENABLE_ON_INIT,
+        .clkdm_name     = "core_l4_clkdm",
         .recalc         = &followparent_recalc,
 };
 
@@ -2094,6 +2099,7 @@ static struct clk usb_l4_ick = {
         .clksel_reg     = OMAP_CM_REGADDR(CORE_MOD, CM_CLKSEL),
         .clksel_mask    = OMAP3430ES1_CLKSEL_FSHOSTUSB_MASK,
         .clksel         = usb_l4_clksel,
+        .clkdm_name     = "core_l4_clkdm",
         .recalc         = &omap2_clksel_recalc,
 };
 
@@ -3467,8 +3473,8 @@ static struct omap_clk omap3xxx_clks[] = {
         CLK(NULL,       "ipss_ick",     &ipss_ick,      CK_AM35XX),
         CLK(NULL,       "rmii_ck",      &rmii_ck,       CK_AM35XX),
         CLK(NULL,       "pclk_ck",      &pclk_ck,       CK_AM35XX),
-        CLK("davinci_emac",     "emac_clk",     &emac_ick,      CK_AM35XX),
-        CLK("davinci_emac",     "phy_clk",      &emac_fck,      CK_AM35XX),
+        CLK("davinci_emac",     NULL,   &emac_ick,      CK_AM35XX),
+        CLK("davinci_mdio.0",   NULL,   &emac_fck,      CK_AM35XX),
         CLK("vpfe-capture",     "master",       &vpfe_ick,      CK_AM35XX),
         CLK("vpfe-capture",     "slave",        &vpfe_fck,      CK_AM35XX),
         CLK("musb-am35x",       "ick",          &hsotgusb_ick_am35xx,   CK_AM35XX),
diff --git a/arch/arm/mach-omap2/clock44xx_data.c b/arch/arm/mach-omap2/clock44xx_data.c
index c03c1108468e..fa6ea65ad44b 100644
--- a/arch/arm/mach-omap2/clock44xx_data.c
+++ b/arch/arm/mach-omap2/clock44xx_data.c
@@ -957,8 +957,8 @@ static struct dpll_data dpll_usb_dd = {
         .modes          = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
         .autoidle_reg   = OMAP4430_CM_AUTOIDLE_DPLL_USB,
         .idlest_reg     = OMAP4430_CM_IDLEST_DPLL_USB,
-        .mult_mask      = OMAP4430_DPLL_MULT_MASK,
-        .div1_mask      = OMAP4430_DPLL_DIV_MASK,
+        .mult_mask      = OMAP4430_DPLL_MULT_USB_MASK,
+        .div1_mask      = OMAP4430_DPLL_DIV_0_7_MASK,
         .enable_mask    = OMAP4430_DPLL_EN_MASK,
         .autoidle_mask  = OMAP4430_AUTO_DPLL_MODE_MASK,
         .idlest_mask    = OMAP4430_ST_DPLL_CLK_MASK,
@@ -978,6 +978,7 @@ static struct clk dpll_usb_ck = {
         .recalc         = &omap3_dpll_recalc,
         .round_rate     = &omap2_dpll_round_rate,
         .set_rate       = &omap3_noncore_dpll_set_rate,
+        .clkdm_name     = "l3_init_clkdm",
 };
 
 static struct clk dpll_usb_clkdcoldo_ck = {
diff --git a/arch/arm/mach-omap2/clockdomains44xx_data.c b/arch/arm/mach-omap2/clockdomains44xx_data.c
index 9299ac291d28..bd7ed13515cc 100644
--- a/arch/arm/mach-omap2/clockdomains44xx_data.c
+++ b/arch/arm/mach-omap2/clockdomains44xx_data.c
@@ -390,7 +390,7 @@ static struct clockdomain emu_sys_44xx_clkdm = {
         .prcm_partition   = OMAP4430_PRM_PARTITION,
         .cm_inst          = OMAP4430_PRM_EMU_CM_INST,
         .clkdm_offs       = OMAP4430_PRM_EMU_CM_EMU_CDOFFS,
-        .flags            = CLKDM_CAN_HWSUP,
+        .flags            = CLKDM_CAN_ENABLE_AUTO | CLKDM_CAN_FORCE_WAKEUP,
 };
 
 static struct clockdomain l3_dma_44xx_clkdm = {
diff --git a/arch/arm/mach-omap2/gpmc-smsc911x.c b/arch/arm/mach-omap2/gpmc-smsc911x.c
index 5e5880d6d099..b6c77be3e8f7 100644
--- a/arch/arm/mach-omap2/gpmc-smsc911x.c
+++ b/arch/arm/mach-omap2/gpmc-smsc911x.c
@@ -19,15 +19,11 @@
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/smsc911x.h>
-#include <linux/regulator/fixed.h>
-#include <linux/regulator/machine.h>
 
 #include <plat/board.h>
 #include <plat/gpmc.h>
 #include <plat/gpmc-smsc911x.h>
 
-static struct omap_smsc911x_platform_data *gpmc_cfg;
-
 static struct resource gpmc_smsc911x_resources[] = {
         [0] = {
                 .flags          = IORESOURCE_MEM,
@@ -41,51 +37,6 @@ static struct smsc911x_platform_config gpmc_smsc911x_config = {
         .phy_interface  = PHY_INTERFACE_MODE_MII,
         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
         .irq_type       = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
-        .flags          = SMSC911X_USE_16BIT,
-};
-
-static struct regulator_consumer_supply gpmc_smsc911x_supply[] = {
-        REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
-        REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
-};
-
-/* Generic regulator definition to satisfy smsc911x */
-static struct regulator_init_data gpmc_smsc911x_reg_init_data = {
-        .constraints = {
-                .min_uV                 = 3300000,
-                .max_uV                 = 3300000,
-                .valid_modes_mask       = REGULATOR_MODE_NORMAL
-                                        | REGULATOR_MODE_STANDBY,
-                .valid_ops_mask         = REGULATOR_CHANGE_MODE
-                                        | REGULATOR_CHANGE_STATUS,
-        },
-        .num_consumer_supplies  = ARRAY_SIZE(gpmc_smsc911x_supply),
-        .consumer_supplies      = gpmc_smsc911x_supply,
-};
-
-static struct fixed_voltage_config gpmc_smsc911x_fixed_reg_data = {
-        .supply_name            = "gpmc_smsc911x",
-        .microvolts             = 3300000,
-        .gpio                   = -EINVAL,
-        .startup_delay          = 0,
-        .enable_high            = 0,
-        .enabled_at_boot        = 1,
-        .init_data              = &gpmc_smsc911x_reg_init_data,
-};
-
-/*
- * Platform device id of 42 is a temporary fix to avoid conflicts
- * with other reg-fixed-voltage devices. The real fix should
- * involve the driver core providing a way of dynamically
- * assigning a unique id on registration for platform devices
- * in the same name space.
- */
-static struct platform_device gpmc_smsc911x_regulator = {
-        .name           = "reg-fixed-voltage",
-        .id             = 42,
-        .dev = {
-                .platform_data  = &gpmc_smsc911x_fixed_reg_data,
-        },
 };
 
 /*
@@ -93,23 +44,12 @@ static struct platform_device gpmc_smsc911x_regulator = {
  * assume that pin multiplexing is done in the board-*.c file,
  * or in the bootloader.
  */
-void __init gpmc_smsc911x_init(struct omap_smsc911x_platform_data *board_data)
+void __init gpmc_smsc911x_init(struct omap_smsc911x_platform_data *gpmc_cfg)
 {
         struct platform_device *pdev;
         unsigned long cs_mem_base;
         int ret;
 
-        gpmc_cfg = board_data;
-
-        if (!gpmc_cfg->id) {
-                ret = platform_device_register(&gpmc_smsc911x_regulator);
-                if (ret < 0) {
-                        pr_err("Unable to register smsc911x regulators: %d\n",
-                               ret);
-                        return;
-                }
-        }
-
         if (gpmc_cs_request(gpmc_cfg->cs, SZ_16M, &cs_mem_base) < 0) {
                 pr_err("Failed to request GPMC mem region\n");
                 return;
@@ -139,8 +79,7 @@ void __init gpmc_smsc911x_init(struct omap_smsc911x_platform_data *board_data)
                 gpio_set_value(gpmc_cfg->gpio_reset, 1);
         }
 
-        if (gpmc_cfg->flags)
-                gpmc_smsc911x_config.flags = gpmc_cfg->flags;
+        gpmc_smsc911x_config.flags = gpmc_cfg->flags ? : SMSC911X_USE_16BIT;
 
         pdev = platform_device_register_resndata(NULL, "smsc911x", gpmc_cfg->id,
                  gpmc_smsc911x_resources, ARRAY_SIZE(gpmc_smsc911x_resources),
diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c
index 100db6217f39..b0268eaffe13 100644
--- a/arch/arm/mach-omap2/hsmmc.c
+++ b/arch/arm/mach-omap2/hsmmc.c
@@ -506,6 +506,13 @@ static void __init omap_hsmmc_init_one(struct omap2_hsmmc_info *hsmmcinfo,
         if (oh->dev_attr != NULL) {
                 mmc_dev_attr = oh->dev_attr;
                 mmc_data->controller_flags = mmc_dev_attr->flags;
+                /*
+                 * erratum 2.1.1.128 doesn't apply if board has
+                 * a transceiver is attached
+                 */
+                if (hsmmcinfo->transceiver)
+                        mmc_data->controller_flags &=
+                                ~OMAP_HSMMC_BROKEN_MULTIBLOCK_READ;
         }
 
         pdev = platform_device_alloc(name, ctrl_nr - 1);
diff --git a/arch/arm/mach-omap2/include/mach/barriers.h b/arch/arm/mach-omap2/include/mach/barriers.h
index 4fa72c7cc7cd..1c582a8592b9 100644
--- a/arch/arm/mach-omap2/include/mach/barriers.h
+++ b/arch/arm/mach-omap2/include/mach/barriers.h
@@ -22,6 +22,8 @@
 #ifndef __MACH_BARRIERS_H
 #define __MACH_BARRIERS_H
 
+#include <asm/outercache.h>
+
 extern void omap_bus_sync(void);
 
 #define rmb()           dsb()
diff --git a/arch/arm/mach-omap2/include/mach/ctrl_module_pad_core_44xx.h b/arch/arm/mach-omap2/include/mach/ctrl_module_pad_core_44xx.h
index 1e2d3322f33e..c88420de1151 100644
--- a/arch/arm/mach-omap2/include/mach/ctrl_module_pad_core_44xx.h
+++ b/arch/arm/mach-omap2/include/mach/ctrl_module_pad_core_44xx.h
@@ -941,10 +941,10 @@
 #define OMAP4_DSI2_LANEENABLE_MASK                              (0x7 << 29)
 #define OMAP4_DSI1_LANEENABLE_SHIFT                             24
 #define OMAP4_DSI1_LANEENABLE_MASK                              (0x1f << 24)
-#define OMAP4_DSI2_PIPD_SHIFT                                   19
-#define OMAP4_DSI2_PIPD_MASK                                    (0x1f << 19)
-#define OMAP4_DSI1_PIPD_SHIFT                                   14
-#define OMAP4_DSI1_PIPD_MASK                                    (0x1f << 14)
+#define OMAP4_DSI1_PIPD_SHIFT                                   19
+#define OMAP4_DSI1_PIPD_MASK                                    (0x1f << 19)
+#define OMAP4_DSI2_PIPD_SHIFT                                   14
+#define OMAP4_DSI2_PIPD_MASK                                    (0x1f << 14)
 
 /* CONTROL_MCBSPLP */
 #define OMAP4_ALBCTRLRX_FSX_SHIFT                               31
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index eba6cd3816f5..7144ae651d3d 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -1395,7 +1395,7 @@ static int _read_hardreset(struct omap_hwmod *oh, const char *name)
  */
 static int _ocp_softreset(struct omap_hwmod *oh)
 {
-        u32 v;
+        u32 v, softrst_mask;
         int c = 0;
         int ret = 0;
 
@@ -1422,16 +1422,21 @@ static int _ocp_softreset(struct omap_hwmod *oh)
                 goto dis_opt_clks;
         _write_sysconfig(v, oh);
 
+        if (oh->class->sysc->srst_udelay)
+                udelay(oh->class->sysc->srst_udelay);
+
         if (oh->class->sysc->sysc_flags & SYSS_HAS_RESET_STATUS)
                 omap_test_timeout((omap_hwmod_read(oh,
                                                     oh->class->sysc->syss_offs)
                                    & SYSS_RESETDONE_MASK),
                                   MAX_MODULE_SOFTRESET_WAIT, c);
-        else if (oh->class->sysc->sysc_flags & SYSC_HAS_RESET_STATUS)
+        else if (oh->class->sysc->sysc_flags & SYSC_HAS_RESET_STATUS) {
+                softrst_mask = (0x1 << oh->class->sysc->sysc_fields->srst_shift);
                 omap_test_timeout(!(omap_hwmod_read(oh,
                                                      oh->class->sysc->sysc_offs)
-                                   & SYSC_TYPE2_SOFTRESET_MASK),
+                                   & softrst_mask),
                                   MAX_MODULE_SOFTRESET_WAIT, c);
+        }
 
         if (c == MAX_MODULE_SOFTRESET_WAIT)
                 pr_warning("omap_hwmod: %s: softreset failed (waited %d usec)\n",
@@ -1477,6 +1482,11 @@ static int _reset(struct omap_hwmod *oh)
 
         ret = (oh->class->reset) ? oh->class->reset(oh) : _ocp_softreset(oh);
 
+        if (oh->class->sysc) {
+                _update_sysc_cache(oh);
+                _enable_sysc(oh);
+        }
+
         return ret;
 }
 
@@ -1786,20 +1796,9 @@ static int _setup(struct omap_hwmod *oh, void *data)
                 return 0;
         }
 
-        if (!(oh->flags & HWMOD_INIT_NO_RESET)) {
+        if (!(oh->flags & HWMOD_INIT_NO_RESET))
                 _reset(oh);
 
-                /*
-                 * OCP_SYSCONFIG bits need to be reprogrammed after a softreset.
-                 * The _enable() function should be split to
-                 * avoid the rewrite of the OCP_SYSCONFIG register.
-                 */
-                if (oh->class->sysc) {
-                        _update_sysc_cache(oh);
-                        _enable_sysc(oh);
-                }
-        }
-
         postsetup_state = oh->_postsetup_state;
         if (postsetup_state == _HWMOD_STATE_UNKNOWN)
                 postsetup_state = _HWMOD_STATE_ENABLED;
@@ -2463,26 +2462,28 @@ int omap_hwmod_del_initiator_dep(struct omap_hwmod *oh,
  * @oh: struct omap_hwmod *
  *
  * Sets the module OCP socket ENAWAKEUP bit to allow the module to
- * send wakeups to the PRCM.  Eventually this should sets PRCM wakeup
- * registers to cause the PRCM to receive wakeup events from the
- * module.  Does not set any wakeup routing registers beyond this
- * point - if the module is to wake up any other module or subsystem,
- * that must be set separately.  Called by omap_device code.  Returns
- * -EINVAL on error or 0 upon success.
+ * send wakeups to the PRCM, and enable I/O ring wakeup events for
+ * this IP block if it has dynamic mux entries.  Eventually this
+ * should set PRCM wakeup registers to cause the PRCM to receive
+ * wakeup events from the module.  Does not set any wakeup routing
+ * registers beyond this point - if the module is to wake up any other
+ * module or subsystem, that must be set separately.  Called by
+ * omap_device code.  Returns -EINVAL on error or 0 upon success.
  */
 int omap_hwmod_enable_wakeup(struct omap_hwmod *oh)
 {
         unsigned long flags;
         u32 v;
 
-        if (!oh->class->sysc ||
-            !(oh->class->sysc->sysc_flags & SYSC_HAS_ENAWAKEUP))
-                return -EINVAL;
-
         spin_lock_irqsave(&oh->_lock, flags);
-        v = oh->_sysc_cache;
-        _enable_wakeup(oh, &v);
-        _write_sysconfig(v, oh);
+
+        if (oh->class->sysc &&
+            (oh->class->sysc->sysc_flags & SYSC_HAS_ENAWAKEUP)) {
+                v = oh->_sysc_cache;
+                _enable_wakeup(oh, &v);
+                _write_sysconfig(v, oh);
+        }
+
         _set_idle_ioring_wakeup(oh, true);
         spin_unlock_irqrestore(&oh->_lock, flags);
 
@@ -2494,26 +2495,28 @@ int omap_hwmod_enable_wakeup(struct omap_hwmod *oh)
  * @oh: struct omap_hwmod *
  *
  * Clears the module OCP socket ENAWAKEUP bit to prevent the module
- * from sending wakeups to the PRCM.  Eventually this should clear
- * PRCM wakeup registers to cause the PRCM to ignore wakeup events
- * from the module.  Does not set any wakeup routing registers beyond
- * this point - if the module is to wake up any other module or
- * subsystem, that must be set separately.  Called by omap_device
- * code.  Returns -EINVAL on error or 0 upon success.
+ * from sending wakeups to the PRCM, and disable I/O ring wakeup
+ * events for this IP block if it has dynamic mux entries.  Eventually
+ * this should clear PRCM wakeup registers to cause the PRCM to ignore
+ * wakeup events from the module.  Does not set any wakeup routing
+ * registers beyond this point - if the module is to wake up any other
+ * module or subsystem, that must be set separately.  Called by
+ * omap_device code.  Returns -EINVAL on error or 0 upon success.
  */
 int omap_hwmod_disable_wakeup(struct omap_hwmod *oh)
 {
         unsigned long flags;
         u32 v;
 
-        if (!oh->class->sysc ||
-            !(oh->class->sysc->sysc_flags & SYSC_HAS_ENAWAKEUP))
-                return -EINVAL;
-
         spin_lock_irqsave(&oh->_lock, flags);
-        v = oh->_sysc_cache;
-        _disable_wakeup(oh, &v);
-        _write_sysconfig(v, oh);
+
+        if (oh->class->sysc &&
+            (oh->class->sysc->sysc_flags & SYSC_HAS_ENAWAKEUP)) {
+                v = oh->_sysc_cache;
+                _disable_wakeup(oh, &v);
+                _write_sysconfig(v, oh);
+        }
+
         _set_idle_ioring_wakeup(oh, false);
         spin_unlock_irqrestore(&oh->_lock, flags);
 
diff --git a/arch/arm/mach-omap2/omap_hwmod_2420_data.c b/arch/arm/mach-omap2/omap_hwmod_2420_data.c
index a5409ce3f323..a6bde34e443a 100644
--- a/arch/arm/mach-omap2/omap_hwmod_2420_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_2420_data.c
@@ -1000,7 +1000,6 @@ static struct omap_hwmod_ocp_if omap2420_l4_core__dss_venc = {
                         .flags  = OMAP_FIREWALL_L4,
                 }
         },
-        .flags          = OCPIF_SWSUP_IDLE,
         .user           = OCP_USER_MPU | OCP_USER_SDMA,
 };
 
diff --git a/arch/arm/mach-omap2/omap_hwmod_2430_data.c b/arch/arm/mach-omap2/omap_hwmod_2430_data.c
index c4f56cb60d7d..04a3885f4475 100644
--- a/arch/arm/mach-omap2/omap_hwmod_2430_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_2430_data.c
@@ -1049,7 +1049,6 @@ static struct omap_hwmod_ocp_if omap2430_l4_core__dss_venc = {
         .slave          = &omap2430_dss_venc_hwmod,
         .clk            = "dss_ick",
         .addr           = omap2_dss_venc_addrs,
-        .flags          = OCPIF_SWSUP_IDLE,
         .user           = OCP_USER_MPU | OCP_USER_SDMA,
 };
 
diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
index 34b9766d1d23..db86ce90c69f 100644
--- a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
@@ -1676,7 +1676,6 @@ static struct omap_hwmod_ocp_if omap3xxx_l4_core__dss_venc = {
                         .flags  = OMAP_FIREWALL_L4,
                 }
         },
-        .flags          = OCPIF_SWSUP_IDLE,
         .user           = OCP_USER_MPU | OCP_USER_SDMA,
 };
 
diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
index 08daa5e0eb5f..6abc75753e42 100644
--- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
@@ -2594,6 +2594,15 @@ static struct omap_hwmod omap44xx_ipu_hwmod = {
 static struct omap_hwmod_class_sysconfig omap44xx_iss_sysc = {
         .rev_offs       = 0x0000,
         .sysc_offs      = 0x0010,
+        /*
+         * ISS needs 100 OCP clk cycles delay after a softreset before
+         * accessing sysconfig again.
+         * The lowest frequency at the moment for L3 bus is 100 MHz, so
+         * 1usec delay is needed. Add an x2 margin to be safe (2 usecs).
+         *
+         * TODO: Indicate errata when available.
+         */
+        .srst_udelay    = 2,
         .sysc_flags     = (SYSC_HAS_MIDLEMODE | SYSC_HAS_RESET_STATUS |
                            SYSC_HAS_SIDLEMODE | SYSC_HAS_SOFTRESET),
         .idlemodes      = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
@@ -2996,6 +3005,11 @@ static struct omap_hwmod_ocp_if *omap44xx_mcbsp1_slaves[] = {
         &omap44xx_l4_abe__mcbsp1_dma,
 };
 
+static struct omap_hwmod_opt_clk mcbsp1_opt_clks[] = {
+        { .role = "pad_fck", .clk = "pad_clks_ck" },
+        { .role = "prcm_clk", .clk = "mcbsp1_sync_mux_ck" },
+};
+
 static struct omap_hwmod omap44xx_mcbsp1_hwmod = {
         .name           = "mcbsp1",
         .class          = &omap44xx_mcbsp_hwmod_class,
@@ -3012,6 +3026,8 @@ static struct omap_hwmod omap44xx_mcbsp1_hwmod = {
         },
         .slaves         = omap44xx_mcbsp1_slaves,
         .slaves_cnt     = ARRAY_SIZE(omap44xx_mcbsp1_slaves),
+        .opt_clks       = mcbsp1_opt_clks,
+        .opt_clks_cnt   = ARRAY_SIZE(mcbsp1_opt_clks),
 };
 
 /* mcbsp2 */
@@ -3071,6 +3087,11 @@ static struct omap_hwmod_ocp_if *omap44xx_mcbsp2_slaves[] = {
         &omap44xx_l4_abe__mcbsp2_dma,
 };
 
+static struct omap_hwmod_opt_clk mcbsp2_opt_clks[] = {
+        { .role = "pad_fck", .clk = "pad_clks_ck" },
+        { .role = "prcm_clk", .clk = "mcbsp2_sync_mux_ck" },
+};
+
 static struct omap_hwmod omap44xx_mcbsp2_hwmod = {
         .name           = "mcbsp2",
         .class          = &omap44xx_mcbsp_hwmod_class,
@@ -3087,6 +3108,8 @@ static struct omap_hwmod omap44xx_mcbsp2_hwmod = {
         },
         .slaves         = omap44xx_mcbsp2_slaves,
         .slaves_cnt     = ARRAY_SIZE(omap44xx_mcbsp2_slaves),
+        .opt_clks       = mcbsp2_opt_clks,
+        .opt_clks_cnt   = ARRAY_SIZE(mcbsp2_opt_clks),
 };
 
 /* mcbsp3 */
@@ -3146,6 +3169,11 @@ static struct omap_hwmod_ocp_if *omap44xx_mcbsp3_slaves[] = {
         &omap44xx_l4_abe__mcbsp3_dma,
 };
 
+static struct omap_hwmod_opt_clk mcbsp3_opt_clks[] = {
+        { .role = "pad_fck", .clk = "pad_clks_ck" },
+        { .role = "prcm_clk", .clk = "mcbsp3_sync_mux_ck" },
+};
+
 static struct omap_hwmod omap44xx_mcbsp3_hwmod = {
         .name           = "mcbsp3",
         .class          = &omap44xx_mcbsp_hwmod_class,
@@ -3162,6 +3190,8 @@ static struct omap_hwmod omap44xx_mcbsp3_hwmod = {
         },
         .slaves         = omap44xx_mcbsp3_slaves,
         .slaves_cnt     = ARRAY_SIZE(omap44xx_mcbsp3_slaves),
+        .opt_clks       = mcbsp3_opt_clks,
+        .opt_clks_cnt   = ARRAY_SIZE(mcbsp3_opt_clks),
 };
 
 /* mcbsp4 */
@@ -3200,6 +3230,11 @@ static struct omap_hwmod_ocp_if *omap44xx_mcbsp4_slaves[] = {
         &omap44xx_l4_per__mcbsp4,
 };
 
+static struct omap_hwmod_opt_clk mcbsp4_opt_clks[] = {
+        { .role = "pad_fck", .clk = "pad_clks_ck" },
+        { .role = "prcm_clk", .clk = "mcbsp4_sync_mux_ck" },
+};
+
 static struct omap_hwmod omap44xx_mcbsp4_hwmod = {
         .name           = "mcbsp4",
         .class          = &omap44xx_mcbsp_hwmod_class,
@@ -3216,6 +3251,8 @@ static struct omap_hwmod omap44xx_mcbsp4_hwmod = {
         },
         .slaves         = omap44xx_mcbsp4_slaves,
         .slaves_cnt     = ARRAY_SIZE(omap44xx_mcbsp4_slaves),
+        .opt_clks       = mcbsp4_opt_clks,
+        .opt_clks_cnt   = ARRAY_SIZE(mcbsp4_opt_clks),
 };
 
 /*
diff --git a/arch/arm/mach-omap2/opp.c b/arch/arm/mach-omap2/opp.c
index 9262a6b47702..de6d46451746 100644
--- a/arch/arm/mach-omap2/opp.c
+++ b/arch/arm/mach-omap2/opp.c
@@ -64,10 +64,10 @@ int __init omap_init_opp_table(struct omap_opp_def *opp_def,
                 }
                 oh = omap_hwmod_lookup(opp_def->hwmod_name);
                 if (!oh || !oh->od) {
-                        pr_warn("%s: no hwmod or odev for %s, [%d] "
+                        pr_debug("%s: no hwmod or odev for %s, [%d] "
                                 "cannot add OPPs.\n", __func__,
                                 opp_def->hwmod_name, i);
-                        return -EINVAL;
+                        continue;
                 }
                 dev = &oh->od->pdev->dev;
 
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index 238defc6f6df..703bd1099259 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -153,8 +153,7 @@ static void omap3_save_secure_ram_context(void)
                 pwrdm_set_next_pwrst(mpu_pwrdm, mpu_next_state);
                 /* Following is for error tracking, it should not happen */
                 if (ret) {
-                        printk(KERN_ERR "save_secure_sram() returns %08x\n",
-                                ret);
+                        pr_err("save_secure_sram() returns %08x\n", ret);
                         while (1)
                                 ;
                 }
@@ -289,7 +288,7 @@ void omap_sram_idle(void)
                 break;
         default:
                 /* Invalid state */
-                printk(KERN_ERR "Invalid mpu state in sram_idle\n");
+                pr_err("Invalid mpu state in sram_idle\n");
                 return;
         }
 
@@ -439,18 +438,17 @@ restore:
         list_for_each_entry(pwrst, &pwrst_list, node) {
                 state = pwrdm_read_prev_pwrst(pwrst->pwrdm);
                 if (state > pwrst->next_state) {
-                        printk(KERN_INFO "Powerdomain (%s) didn't enter "
-                               "target state %d\n",
+                        pr_info("Powerdomain (%s) didn't enter "
+                                "target state %d\n",
                                pwrst->pwrdm->name, pwrst->next_state);
                         ret = -1;
                 }
                 omap_set_pwrdm_state(pwrst->pwrdm, pwrst->saved_state);
         }
         if (ret)
-                printk(KERN_ERR "Could not enter target state in pm_suspend\n");
+                pr_err("Could not enter target state in pm_suspend\n");
         else
-                printk(KERN_INFO "Successfully put all powerdomains "
-                       "to target state\n");
+                pr_info("Successfully put all powerdomains to target state\n");
 
         return ret;
 }
@@ -734,21 +732,22 @@ static int __init omap3_pm_init(void)
 
         if (ret) {
                 pr_err("pm: Failed to request pm_io irq\n");
-                goto err1;
+                goto err2;
         }
 
         ret = pwrdm_for_each(pwrdms_setup, NULL);
         if (ret) {
-                printk(KERN_ERR "Failed to setup powerdomains\n");
-                goto err2;
+                pr_err("Failed to setup powerdomains\n");
+                goto err3;
         }
 
         (void) clkdm_for_each(omap_pm_clkdms_setup, NULL);
 
         mpu_pwrdm = pwrdm_lookup("mpu_pwrdm");
         if (mpu_pwrdm == NULL) {
-                printk(KERN_ERR "Failed to get mpu_pwrdm\n");
-                goto err2;
+                pr_err("Failed to get mpu_pwrdm\n");
+                ret = -EINVAL;
+                goto err3;
         }
 
         neon_pwrdm = pwrdm_lookup("neon_pwrdm");
@@ -781,8 +780,8 @@ static int __init omap3_pm_init(void)
                 omap3_secure_ram_storage =
                         kmalloc(0x803F, GFP_KERNEL);
                 if (!omap3_secure_ram_storage)
-                        printk(KERN_ERR "Memory allocation failed when"
-                                        "allocating for secure sram context\n");
+                        pr_err("Memory allocation failed when "
+                               "allocating for secure sram context\n");
 
                 local_irq_disable();
                 local_fiq_disable();
@@ -796,14 +795,17 @@ static int __init omap3_pm_init(void)
         }
 
         omap3_save_scratchpad_contents();
-err1:
         return ret;
-err2:
-        free_irq(INT_34XX_PRCM_MPU_IRQ, NULL);
+
+err3:
         list_for_each_entry_safe(pwrst, tmp, &pwrst_list, node) {
                 list_del(&pwrst->node);
                 kfree(pwrst);
         }
+        free_irq(omap_prcm_event_to_irq("io"), omap3_pm_init);
+err2:
+        free_irq(omap_prcm_event_to_irq("wkup"), NULL);
+err1:
         return ret;
 }
 
diff --git a/arch/arm/mach-omap2/pm44xx.c b/arch/arm/mach-omap2/pm44xx.c
index 9ccaadc2cf07..885625352429 100644
--- a/arch/arm/mach-omap2/pm44xx.c
+++ b/arch/arm/mach-omap2/pm44xx.c
@@ -144,7 +144,7 @@ static void omap_default_idle(void)
 static int __init omap4_pm_init(void)
 {
         int ret;
-        struct clockdomain *emif_clkdm, *mpuss_clkdm, *l3_1_clkdm;
+        struct clockdomain *emif_clkdm, *mpuss_clkdm, *l3_1_clkdm, *l4wkup;
         struct clockdomain *ducati_clkdm, *l3_2_clkdm, *l4_per_clkdm;
 
         if (!cpu_is_omap44xx())
@@ -168,14 +168,19 @@ static int __init omap4_pm_init(void)
          * MPUSS -> L4_PER/L3_* and DUCATI -> L3_* doesn't work as
          * expected. The hardware recommendation is to enable static
          * dependencies for these to avoid system lock ups or random crashes.
+         * The L4 wakeup depedency is added to workaround the OCP sync hardware
+         * BUG with 32K synctimer which lead to incorrect timer value read
+         * from the 32K counter. The BUG applies for GPTIMER1 and WDT2 which
+         * are part of L4 wakeup clockdomain.
          */
         mpuss_clkdm = clkdm_lookup("mpuss_clkdm");
         emif_clkdm = clkdm_lookup("l3_emif_clkdm");
         l3_1_clkdm = clkdm_lookup("l3_1_clkdm");
         l3_2_clkdm = clkdm_lookup("l3_2_clkdm");
         l4_per_clkdm = clkdm_lookup("l4_per_clkdm");
+        l4wkup = clkdm_lookup("l4_wkup_clkdm");
         ducati_clkdm = clkdm_lookup("ducati_clkdm");
-        if ((!mpuss_clkdm) || (!emif_clkdm) || (!l3_1_clkdm) ||
+        if ((!mpuss_clkdm) || (!emif_clkdm) || (!l3_1_clkdm) || (!l4wkup) ||
                 (!l3_2_clkdm) || (!ducati_clkdm) || (!l4_per_clkdm))
                 goto err2;
 
@@ -183,6 +188,7 @@ static int __init omap4_pm_init(void)
         ret |= clkdm_add_wkdep(mpuss_clkdm, l3_1_clkdm);
         ret |= clkdm_add_wkdep(mpuss_clkdm, l3_2_clkdm);
         ret |= clkdm_add_wkdep(mpuss_clkdm, l4_per_clkdm);
+        ret |= clkdm_add_wkdep(mpuss_clkdm, l4wkup);
         ret |= clkdm_add_wkdep(ducati_clkdm, l3_1_clkdm);
         ret |= clkdm_add_wkdep(ducati_clkdm, l3_2_clkdm);
         if (ret) {
diff --git a/arch/arm/mach-omap2/powerdomain.c b/arch/arm/mach-omap2/powerdomain.c
index 8a18d1bd61c8..96ad3dbeac34 100644
--- a/arch/arm/mach-omap2/powerdomain.c
+++ b/arch/arm/mach-omap2/powerdomain.c
@@ -972,7 +972,13 @@ int pwrdm_wait_transition(struct powerdomain *pwrdm)
 
 int pwrdm_state_switch(struct powerdomain *pwrdm)
 {
-        return _pwrdm_state_switch(pwrdm, PWRDM_STATE_NOW);
+        int ret;
+
+        ret = pwrdm_wait_transition(pwrdm);
+        if (!ret)
+                ret = _pwrdm_state_switch(pwrdm, PWRDM_STATE_NOW);
+
+        return ret;
 }
 
 int pwrdm_clkdm_state_switch(struct clockdomain *clkdm)
diff --git a/arch/arm/mach-omap2/prm44xx.c b/arch/arm/mach-omap2/prm44xx.c
index eac623c7c3d8..f106d21ff581 100644
--- a/arch/arm/mach-omap2/prm44xx.c
+++ b/arch/arm/mach-omap2/prm44xx.c
@@ -147,8 +147,9 @@ static inline u32 _read_pending_irq_reg(u16 irqen_offs, u16 irqst_offs)
         u32 mask, st;
 
         /* XXX read mask from RAM? */
-        mask = omap4_prm_read_inst_reg(OMAP4430_PRM_DEVICE_INST, irqen_offs);
-        st = omap4_prm_read_inst_reg(OMAP4430_PRM_DEVICE_INST, irqst_offs);
+        mask = omap4_prm_read_inst_reg(OMAP4430_PRM_OCP_SOCKET_INST,
+                                       irqen_offs);
+        st = omap4_prm_read_inst_reg(OMAP4430_PRM_OCP_SOCKET_INST, irqst_offs);
 
         return mask & st;
 }
@@ -180,7 +181,7 @@ void omap44xx_prm_read_pending_irqs(unsigned long *events)
  */
 void omap44xx_prm_ocp_barrier(void)
 {
-        omap4_prm_read_inst_reg(OMAP4430_PRM_DEVICE_INST,
+        omap4_prm_read_inst_reg(OMAP4430_PRM_OCP_SOCKET_INST,
                                 OMAP4_REVISION_PRM_OFFSET);
 }
 
@@ -198,19 +199,19 @@ void omap44xx_prm_ocp_barrier(void)
 void omap44xx_prm_save_and_clear_irqen(u32 *saved_mask)
 {
         saved_mask[0] =
-                omap4_prm_read_inst_reg(OMAP4430_PRM_DEVICE_INST,
+                omap4_prm_read_inst_reg(OMAP4430_PRM_OCP_SOCKET_INST,
                                         OMAP4_PRM_IRQSTATUS_MPU_OFFSET);
         saved_mask[1] =
-                omap4_prm_read_inst_reg(OMAP4430_PRM_DEVICE_INST,
+                omap4_prm_read_inst_reg(OMAP4430_PRM_OCP_SOCKET_INST,
                                         OMAP4_PRM_IRQSTATUS_MPU_2_OFFSET);
 
-        omap4_prm_write_inst_reg(0, OMAP4430_PRM_DEVICE_INST,
+        omap4_prm_write_inst_reg(0, OMAP4430_PRM_OCP_SOCKET_INST,
                                  OMAP4_PRM_IRQENABLE_MPU_OFFSET);
-        omap4_prm_write_inst_reg(0, OMAP4430_PRM_DEVICE_INST,
+        omap4_prm_write_inst_reg(0, OMAP4430_PRM_OCP_SOCKET_INST,
                                  OMAP4_PRM_IRQENABLE_MPU_2_OFFSET);
 
         /* OCP barrier */
-        omap4_prm_read_inst_reg(OMAP4430_PRM_DEVICE_INST,
+        omap4_prm_read_inst_reg(OMAP4430_PRM_OCP_SOCKET_INST,
                                 OMAP4_REVISION_PRM_OFFSET);
 }
 
@@ -226,9 +227,9 @@ void omap44xx_prm_save_and_clear_irqen(u32 *saved_mask)
  */
 void omap44xx_prm_restore_irqen(u32 *saved_mask)
 {
-        omap4_prm_write_inst_reg(saved_mask[0], OMAP4430_PRM_DEVICE_INST,
+        omap4_prm_write_inst_reg(saved_mask[0], OMAP4430_PRM_OCP_SOCKET_INST,
                                  OMAP4_PRM_IRQENABLE_MPU_OFFSET);
-        omap4_prm_write_inst_reg(saved_mask[1], OMAP4430_PRM_DEVICE_INST,
+        omap4_prm_write_inst_reg(saved_mask[1], OMAP4430_PRM_OCP_SOCKET_INST,
                                  OMAP4_PRM_IRQENABLE_MPU_2_OFFSET);
 }
 
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index 873b51d494ea..d28f848897d6 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -290,7 +290,7 @@ int omap_prcm_register_chain_handler(struct omap_prcm_irq_setup *irq_setup)
                 goto err;
         }
 
-        for (i = 0; i <= irq_setup->nr_regs; i++) {
+        for (i = 0; i < irq_setup->nr_regs; i++) {
                 gc = irq_alloc_generic_chip("PRCM", 1,
                         irq_setup->base_irq + i * 32, prm_base,
                         handle_level_irq);
diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c
index 0cdd359a128e..9fc2f44188cb 100644
--- a/arch/arm/mach-omap2/serial.c
+++ b/arch/arm/mach-omap2/serial.c
@@ -108,8 +108,14 @@ static void omap_uart_set_noidle(struct platform_device *pdev)
 static void omap_uart_set_smartidle(struct platform_device *pdev)
 {
         struct omap_device *od = to_omap_device(pdev);
+        u8 idlemode;
 
-        omap_hwmod_set_slave_idlemode(od->hwmods[0], HWMOD_IDLEMODE_SMART);
+        if (od->hwmods[0]->class->sysc->idlemodes & SIDLE_SMART_WKUP)
+                idlemode = HWMOD_IDLEMODE_SMART_WKUP;
+        else
+                idlemode = HWMOD_IDLEMODE_SMART;
+
+        omap_hwmod_set_slave_idlemode(od->hwmods[0], idlemode);
 }
 
 #else
@@ -120,124 +126,8 @@ static void omap_uart_set_smartidle(struct platform_device *pdev) {}
 #endif /* CONFIG_PM */
 
 #ifdef CONFIG_OMAP_MUX
-static struct omap_device_pad default_uart1_pads[] __initdata = {
-        {
-                .name   = "uart1_cts.uart1_cts",
-                .enable = OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0,
-        },
-        {
-                .name   = "uart1_rts.uart1_rts",
-                .enable = OMAP_PIN_OUTPUT | OMAP_MUX_MODE0,
-        },
-        {
-                .name   = "uart1_tx.uart1_tx",
-                .enable = OMAP_PIN_OUTPUT | OMAP_MUX_MODE0,
-        },
-        {
-                .name   = "uart1_rx.uart1_rx",
-                .flags  = OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP,
-                .enable = OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0,
-                .idle   = OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0,
-        },
-};
-
-static struct omap_device_pad default_uart2_pads[] __initdata = {
-        {
-                .name   = "uart2_cts.uart2_cts",
-                .enable = OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0,
-        },
-        {
-                .name   = "uart2_rts.uart2_rts",
-                .enable = OMAP_PIN_OUTPUT | OMAP_MUX_MODE0,
-        },
-        {
-                .name   = "uart2_tx.uart2_tx",
-                .enable = OMAP_PIN_OUTPUT | OMAP_MUX_MODE0,
-        },
-        {
-                .name   = "uart2_rx.uart2_rx",
-                .flags  = OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP,
-                .enable = OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0,
-                .idle   = OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0,
-        },
-};
-
-static struct omap_device_pad default_uart3_pads[] __initdata = {
-        {
-                .name   = "uart3_cts_rctx.uart3_cts_rctx",
-                .enable = OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0,
-        },
-        {
-                .name   = "uart3_rts_sd.uart3_rts_sd",
-                .enable = OMAP_PIN_OUTPUT | OMAP_MUX_MODE0,
-        },
-        {
-                .name   = "uart3_tx_irtx.uart3_tx_irtx",
-                .enable = OMAP_PIN_OUTPUT | OMAP_MUX_MODE0,
-        },
-        {
-                .name   = "uart3_rx_irrx.uart3_rx_irrx",
-                .flags  = OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP,
-                .enable = OMAP_PIN_INPUT | OMAP_MUX_MODE0,
-                .idle   = OMAP_PIN_INPUT | OMAP_MUX_MODE0,
-        },
-};
-
-static struct omap_device_pad default_omap36xx_uart4_pads[] __initdata = {
-        {
-                .name   = "gpmc_wait2.uart4_tx",
-                .enable = OMAP_PIN_OUTPUT | OMAP_MUX_MODE0,
-        },
-        {
-                .name   = "gpmc_wait3.uart4_rx",
-                .flags  = OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP,
-                .enable = OMAP_PIN_INPUT | OMAP_MUX_MODE2,
-                .idle   = OMAP_PIN_INPUT | OMAP_MUX_MODE2,
-        },
-};
-
-static struct omap_device_pad default_omap4_uart4_pads[] __initdata = {
-        {
-                .name   = "uart4_tx.uart4_tx",
-                .enable = OMAP_PIN_OUTPUT | OMAP_MUX_MODE0,
-        },
-        {
-                .name   = "uart4_rx.uart4_rx",
-                .flags  = OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP,
-                .enable = OMAP_PIN_INPUT | OMAP_MUX_MODE0,
-                .idle   = OMAP_PIN_INPUT | OMAP_MUX_MODE0,
-        },
-};
-
 static void omap_serial_fill_default_pads(struct omap_board_data *bdata)
 {
-        switch (bdata->id) {
-        case 0:
-                bdata->pads = default_uart1_pads;
-                bdata->pads_cnt = ARRAY_SIZE(default_uart1_pads);
-                break;
-        case 1:
-                bdata->pads = default_uart2_pads;
-                bdata->pads_cnt = ARRAY_SIZE(default_uart2_pads);
-                break;
-        case 2:
-                bdata->pads = default_uart3_pads;
-                bdata->pads_cnt = ARRAY_SIZE(default_uart3_pads);
-                break;
-        case 3:
-                if (cpu_is_omap44xx()) {
-                        bdata->pads = default_omap4_uart4_pads;
-                        bdata->pads_cnt =
-                                ARRAY_SIZE(default_omap4_uart4_pads);
-                } else if (cpu_is_omap3630()) {
-                        bdata->pads = default_omap36xx_uart4_pads;
-                        bdata->pads_cnt =
-                                ARRAY_SIZE(default_omap36xx_uart4_pads);
-                }
-                break;
-        default:
-                break;
-        }
 }
 #else
 static void omap_serial_fill_default_pads(struct omap_board_data *bdata) {}
diff --git a/arch/arm/mach-omap2/twl-common.c b/arch/arm/mach-omap2/twl-common.c
index 4b57757bf9d1..7a7b89304c48 100644
--- a/arch/arm/mach-omap2/twl-common.c
+++ b/arch/arm/mach-omap2/twl-common.c
@@ -37,6 +37,16 @@ static struct i2c_board_info __initdata pmic_i2c_board_info = {
         .flags          = I2C_CLIENT_WAKE,
 };
 
+static struct i2c_board_info __initdata omap4_i2c1_board_info[] = {
+        {
+                .addr           = 0x48,
+                .flags          = I2C_CLIENT_WAKE,
+        },
+        {
+                I2C_BOARD_INFO("twl6040", 0x4b),
+        },
+};
+
 void __init omap_pmic_init(int bus, u32 clkrate,
                            const char *pmic_type, int pmic_irq,
                            struct twl4030_platform_data *pmic_data)
@@ -49,14 +59,31 @@ void __init omap_pmic_init(int bus, u32 clkrate,
         omap_register_i2c_bus(bus, clkrate, &pmic_i2c_board_info, 1);
 }
 
+void __init omap4_pmic_init(const char *pmic_type,
+                    struct twl4030_platform_data *pmic_data,
+                    struct twl6040_platform_data *twl6040_data, int twl6040_irq)
+{
+        /* PMIC part*/
+        strncpy(omap4_i2c1_board_info[0].type, pmic_type,
+                sizeof(omap4_i2c1_board_info[0].type));
+        omap4_i2c1_board_info[0].irq = OMAP44XX_IRQ_SYS_1N;
+        omap4_i2c1_board_info[0].platform_data = pmic_data;
+
+        /* TWL6040 audio IC part */
+        omap4_i2c1_board_info[1].irq = twl6040_irq;
+        omap4_i2c1_board_info[1].platform_data = twl6040_data;
+
+        omap_register_i2c_bus(1, 400, omap4_i2c1_board_info, 2);
+
+}
+
 void __init omap_pmic_late_init(void)
 {
         /* Init the OMAP TWL parameters (if PMIC has been registerd) */
-        if (!pmic_i2c_board_info.irq)
-                return;
-
-        omap3_twl_init();
-        omap4_twl_init();
+        if (pmic_i2c_board_info.irq)
+                omap3_twl_init();
+        if (omap4_i2c1_board_info[0].irq)
+                omap4_twl_init();
 }
 
 #if defined(CONFIG_ARCH_OMAP3)
diff --git a/arch/arm/mach-omap2/twl-common.h b/arch/arm/mach-omap2/twl-common.h
index 275dde8cb27a..09627483a57f 100644
--- a/arch/arm/mach-omap2/twl-common.h
+++ b/arch/arm/mach-omap2/twl-common.h
@@ -29,6 +29,7 @@
 
 
 struct twl4030_platform_data;
+struct twl6040_platform_data;
 
 void omap_pmic_init(int bus, u32 clkrate, const char *pmic_type, int pmic_irq,
                     struct twl4030_platform_data *pmic_data);
@@ -46,12 +47,9 @@ static inline void omap3_pmic_init(const char *pmic_type,
         omap_pmic_init(1, 2600, pmic_type, INT_34XX_SYS_NIRQ, pmic_data);
 }
 
-static inline void omap4_pmic_init(const char *pmic_type,
-                                   struct twl4030_platform_data *pmic_data)
-{
-        /* Phoenix Audio IC needs I2C1 to start with 400 KHz or less */
-        omap_pmic_init(1, 400, pmic_type, OMAP44XX_IRQ_SYS_1N, pmic_data);
-}
+void omap4_pmic_init(const char *pmic_type,
+                    struct twl4030_platform_data *pmic_data,
+                    struct twl6040_platform_data *audio_data, int twl6040_irq);
 
 void omap3_pmic_get_config(struct twl4030_platform_data *pmic_data,
                            u32 pdata_flags, u32 regulators_flags);
diff --git a/arch/arm/mach-omap2/usb-host.c b/arch/arm/mach-omap2/usb-host.c
index f51348dafafd..dde8a11f47d5 100644
--- a/arch/arm/mach-omap2/usb-host.c
+++ b/arch/arm/mach-omap2/usb-host.c
@@ -54,7 +54,7 @@ static struct omap_device_pm_latency omap_uhhtll_latency[] = {
 /*
  * setup_ehci_io_mux - initialize IO pad mux for USBHOST
  */
-static void setup_ehci_io_mux(const enum usbhs_omap_port_mode *port_mode)
+static void __init setup_ehci_io_mux(const enum usbhs_omap_port_mode *port_mode)
 {
         switch (port_mode[0]) {
         case OMAP_EHCI_PORT_MODE_PHY:
@@ -197,7 +197,8 @@ static void setup_ehci_io_mux(const enum usbhs_omap_port_mode *port_mode)
         return;
 }
 
-static void setup_4430ehci_io_mux(const enum usbhs_omap_port_mode *port_mode)
+static
+void __init setup_4430ehci_io_mux(const enum usbhs_omap_port_mode *port_mode)
 {
         switch (port_mode[0]) {
         case OMAP_EHCI_PORT_MODE_PHY:
@@ -315,7 +316,7 @@ static void setup_4430ehci_io_mux(const enum usbhs_omap_port_mode *port_mode)
         }
 }
 
-static void setup_ohci_io_mux(const enum usbhs_omap_port_mode *port_mode)
+static void __init setup_ohci_io_mux(const enum usbhs_omap_port_mode *port_mode)
 {
         switch (port_mode[0]) {
         case OMAP_OHCI_PORT_MODE_PHY_6PIN_DATSE0:
@@ -412,7 +413,8 @@ static void setup_ohci_io_mux(const enum usbhs_omap_port_mode *port_mode)
         }
 }
 
-static void setup_4430ohci_io_mux(const enum usbhs_omap_port_mode *port_mode)
+static
+void __init setup_4430ohci_io_mux(const enum usbhs_omap_port_mode *port_mode)
 {
         switch (port_mode[0]) {
         case OMAP_OHCI_PORT_MODE_PHY_6PIN_DATSE0:
diff --git a/arch/arm/mach-orion5x/mpp.h b/arch/arm/mach-orion5x/mpp.h
index eac68978a2c2..db70e79a1198 100644
--- a/arch/arm/mach-orion5x/mpp.h
+++ b/arch/arm/mach-orion5x/mpp.h
@@ -65,8 +65,8 @@
 #define MPP8_GIGE               MPP(8,  0x1, 0, 0, 1,   1,   1)
 
 #define MPP9_UNUSED             MPP(9,  0x0, 0, 0, 1,   1,   1)
-#define MPP9_GPIO               MPP(9,  0x0, 0, 0, 1,   1,   1)
-#define MPP9_GIGE               MPP(9,  0x1, 1, 1, 1,   1,   1)
+#define MPP9_GPIO               MPP(9,  0x0, 1, 1, 1,   1,   1)
+#define MPP9_GIGE               MPP(9,  0x1, 0, 0, 1,   1,   1)
 
 #define MPP10_UNUSED            MPP(10, 0x0, 0, 0, 1,   1,   1)
 #define MPP10_GPIO              MPP(10, 0x0, 1, 1, 1,   1,   1)
diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig
index 109ccd2a8885..fe2d1f80ef50 100644
--- a/arch/arm/mach-pxa/Kconfig
+++ b/arch/arm/mach-pxa/Kconfig
@@ -113,6 +113,7 @@ config MACH_ARMCORE
         select IWMMXT
         select PXA25x
         select MIGHT_HAVE_PCI
+        select NEED_MACH_IO_H if PCI
 
 config MACH_EM_X270
         bool "CompuLab EM-x270 platform"
diff --git a/arch/arm/mach-pxa/include/mach/io.h b/arch/arm/mach-pxa/include/mach/io.h
new file mode 100644
index 000000000000..cd78b7fe3567
--- /dev/null
+++ b/arch/arm/mach-pxa/include/mach/io.h
@@ -0,0 +1,17 @@
+/*
+ * arch/arm/mach-pxa/include/mach/io.h
+ *
+ * Copied from asm/arch/sa1100/io.h
+ */
+#ifndef __ASM_ARM_ARCH_IO_H
+#define __ASM_ARM_ARCH_IO_H
+
+#define IO_SPACE_LIMIT 0xffffffff
+
+/*
+ * We don't actually have real ISA nor PCI buses, but there is so many
+ * drivers out there that might just work if we fake them...
+ */
+#define __io(a)         __typesafe_io(a)
+
+#endif
diff --git a/arch/arm/mach-pxa/include/mach/mfp-pxa2xx.h b/arch/arm/mach-pxa/include/mach/mfp-pxa2xx.h
index c54cef25895c..cbf51ae81855 100644
--- a/arch/arm/mach-pxa/include/mach/mfp-pxa2xx.h
+++ b/arch/arm/mach-pxa/include/mach/mfp-pxa2xx.h
@@ -17,6 +17,7 @@
  *
  * bit     23 - Input/Output (PXA2xx specific)
  * bit     24 - Wakeup Enable(PXA2xx specific)
+ * bit     25 - Keep Output  (PXA2xx specific)
  */
 
 #define MFP_DIR_IN              (0x0 << 23)
@@ -25,6 +26,12 @@
 #define MFP_DIR(x)              (((x) >> 23) & 0x1)
 
 #define MFP_LPM_CAN_WAKEUP      (0x1 << 24)
+
+/*
+ * MFP_LPM_KEEP_OUTPUT must be specified for pins that need to
+ * retain their last output level (low or high).
+ * Note: MFP_LPM_KEEP_OUTPUT has no effect on pins configured for input.
+ */
 #define MFP_LPM_KEEP_OUTPUT     (0x1 << 25)
 
 #define WAKEUP_ON_EDGE_RISE     (MFP_LPM_CAN_WAKEUP | MFP_LPM_EDGE_RISE)
diff --git a/arch/arm/mach-pxa/mfp-pxa2xx.c b/arch/arm/mach-pxa/mfp-pxa2xx.c
index b0a842887780..ef0426a159d4 100644
--- a/arch/arm/mach-pxa/mfp-pxa2xx.c
+++ b/arch/arm/mach-pxa/mfp-pxa2xx.c
@@ -33,6 +33,8 @@
 #define BANK_OFF(n)     (((n) < 3) ? (n) << 2 : 0x100 + (((n) - 3) << 2))
 #define GPLR(x)         __REG2(0x40E00000, BANK_OFF((x) >> 5))
 #define GPDR(x)         __REG2(0x40E00000, BANK_OFF((x) >> 5) + 0x0c)
+#define GPSR(x)         __REG2(0x40E00000, BANK_OFF((x) >> 5) + 0x18)
+#define GPCR(x)         __REG2(0x40E00000, BANK_OFF((x) >> 5) + 0x24)
 
 #define PWER_WE35       (1 << 24)
 
@@ -348,6 +350,7 @@ static inline void pxa27x_mfp_init(void) {}
 #ifdef CONFIG_PM
 static unsigned long saved_gafr[2][4];
 static unsigned long saved_gpdr[4];
+static unsigned long saved_gplr[4];
 static unsigned long saved_pgsr[4];
 
 static int pxa2xx_mfp_suspend(void)
@@ -366,14 +369,26 @@ static int pxa2xx_mfp_suspend(void)
         }
 
         for (i = 0; i <= gpio_to_bank(pxa_last_gpio); i++) {
-
                 saved_gafr[0][i] = GAFR_L(i);
                 saved_gafr[1][i] = GAFR_U(i);
                 saved_gpdr[i] = GPDR(i * 32);
+                saved_gplr[i] = GPLR(i * 32);
                 saved_pgsr[i] = PGSR(i);
 
-                GPDR(i * 32) = gpdr_lpm[i];
+                GPSR(i * 32) = PGSR(i);
+                GPCR(i * 32) = ~PGSR(i);
+        }
+
+        /* set GPDR bits taking into account MFP_LPM_KEEP_OUTPUT */
+        for (i = 0; i < pxa_last_gpio; i++) {
+                if ((gpdr_lpm[gpio_to_bank(i)] & GPIO_bit(i)) ||
+                    ((gpio_desc[i].config & MFP_LPM_KEEP_OUTPUT) &&
+                     (saved_gpdr[gpio_to_bank(i)] & GPIO_bit(i))))
+                        GPDR(i) |= GPIO_bit(i);
+                else
+                        GPDR(i) &= ~GPIO_bit(i);
         }
+
         return 0;
 }
 
@@ -384,6 +399,8 @@ static void pxa2xx_mfp_resume(void)
         for (i = 0; i <= gpio_to_bank(pxa_last_gpio); i++) {
                 GAFR_L(i) = saved_gafr[0][i];
                 GAFR_U(i) = saved_gafr[1][i];
+                GPSR(i * 32) = saved_gplr[i];
+                GPCR(i * 32) = ~saved_gplr[i];
                 GPDR(i * 32) = saved_gpdr[i];
                 PGSR(i) = saved_pgsr[i];
         }
diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
index 6bce78edce7a..4726c246dcdc 100644
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -421,8 +421,11 @@ void __init pxa27x_set_i2c_power_info(struct i2c_pxa_platform_data *info)
         pxa_register_device(&pxa27x_device_i2c_power, info);
 }
 
+static struct pxa_gpio_platform_data pxa27x_gpio_info __initdata = {
+        .gpio_set_wake = gpio_set_wake,
+};
+
 static struct platform_device *devices[] __initdata = {
-        &pxa_device_gpio,
         &pxa27x_device_udc,
         &pxa_device_pmu,
         &pxa_device_i2s,
@@ -458,6 +461,7 @@ static int __init pxa27x_init(void)
                 register_syscore_ops(&pxa2xx_mfp_syscore_ops);
                 register_syscore_ops(&pxa2xx_clock_syscore_ops);
 
+                pxa_register_device(&pxa_device_gpio, &pxa27x_gpio_info);
                 ret = platform_add_devices(devices, ARRAY_SIZE(devices));
         }
 
diff --git a/arch/arm/mach-s3c24xx/Kconfig b/arch/arm/mach-s3c24xx/Kconfig
index 0f3a327ebcaa..b34287ab5afd 100644
--- a/arch/arm/mach-s3c24xx/Kconfig
+++ b/arch/arm/mach-s3c24xx/Kconfig
@@ -111,10 +111,6 @@ config S3C24XX_SETUP_TS
         help
           Compile in platform device definition for Samsung TouchScreen.
 
-# cpu-specific sections
-
-if CPU_S3C2410
-
 config S3C2410_DMA
         bool
         depends on S3C24XX_DMA && (CPU_S3C2410 || CPU_S3C2442)
@@ -127,6 +123,10 @@ config S3C2410_PM
         help
           Power Management code common to S3C2410 and better
 
+# cpu-specific sections
+
+if CPU_S3C2410
+
 config S3C24XX_SIMTEC_NOR
         bool
         help
diff --git a/arch/arm/mach-s3c24xx/common.h b/arch/arm/mach-s3c24xx/common.h
new file mode 100644
index 000000000000..c2f596e7bc2d
--- /dev/null
+++ b/arch/arm/mach-s3c24xx/common.h
@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ *              http://www.samsung.com
+ *
+ * Common Header for S3C24XX SoCs
+ *
+ * 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.
+ */
+
+#ifndef __ARCH_ARM_MACH_S3C24XX_COMMON_H
+#define __ARCH_ARM_MACH_S3C24XX_COMMON_H __FILE__
+
+void s3c2410_restart(char mode, const char *cmd);
+void s3c244x_restart(char mode, const char *cmd);
+
+#endif /* __ARCH_ARM_MACH_S3C24XX_COMMON_H */
diff --git a/arch/arm/mach-s5pv210/dma.c b/arch/arm/mach-s5pv210/dma.c
index 86ce62f66190..b8337e248b09 100644
--- a/arch/arm/mach-s5pv210/dma.c
+++ b/arch/arm/mach-s5pv210/dma.c
@@ -33,8 +33,6 @@
 #include <mach/irqs.h>
 #include <mach/dma.h>
 
-static u64 dma_dmamask = DMA_BIT_MASK(32);
-
 static u8 pdma0_peri[] = {
         DMACH_UART0_RX,
         DMACH_UART0_TX,
diff --git a/arch/arm/mach-s5pv210/mach-aquila.c b/arch/arm/mach-s5pv210/mach-aquila.c
index a9ea64e0da0d..48d018f2332b 100644
--- a/arch/arm/mach-s5pv210/mach-aquila.c
+++ b/arch/arm/mach-s5pv210/mach-aquila.c
@@ -484,8 +484,8 @@ static struct wm8994_pdata wm8994_platform_data = {
         .gpio_defaults[8] = 0x0100,
         .gpio_defaults[9] = 0x0100,
         .gpio_defaults[10] = 0x0100,
-        .ldo[0] = { S5PV210_MP03(6), NULL, &wm8994_ldo1_data }, /* XM0FRNB_2 */
-        .ldo[1] = { 0, NULL, &wm8994_ldo2_data },
+        .ldo[0] = { S5PV210_MP03(6), &wm8994_ldo1_data },       /* XM0FRNB_2 */
+        .ldo[1] = { 0, &wm8994_ldo2_data },
 };
 
 /* GPIO I2C PMIC */
diff --git a/arch/arm/mach-s5pv210/mach-goni.c b/arch/arm/mach-s5pv210/mach-goni.c
index 2cf5ed75f390..32395664e879 100644
--- a/arch/arm/mach-s5pv210/mach-goni.c
+++ b/arch/arm/mach-s5pv210/mach-goni.c
@@ -25,6 +25,7 @@
 #include <linux/gpio_keys.h>
 #include <linux/input.h>
 #include <linux/gpio.h>
+#include <linux/mmc/host.h>
 #include <linux/interrupt.h>
 
 #include <asm/hardware/vic.h>
@@ -674,8 +675,8 @@ static struct wm8994_pdata wm8994_platform_data = {
         .gpio_defaults[8] = 0x0100,
         .gpio_defaults[9] = 0x0100,
         .gpio_defaults[10] = 0x0100,
-        .ldo[0] = { S5PV210_MP03(6), NULL, &wm8994_ldo1_data }, /* XM0FRNB_2 */
-        .ldo[1] = { 0, NULL, &wm8994_ldo2_data },
+        .ldo[0] = { S5PV210_MP03(6), &wm8994_ldo1_data },       /* XM0FRNB_2 */
+        .ldo[1] = { 0, &wm8994_ldo2_data },
 };
 
 /* GPIO I2C PMIC */
@@ -765,6 +766,7 @@ static void __init goni_pmic_init(void)
 /* MoviNAND */
 static struct s3c_sdhci_platdata goni_hsmmc0_data __initdata = {
         .max_width              = 4,
+        .host_caps2             = MMC_CAP2_BROKEN_VOLTAGE,
         .cd_type                = S3C_SDHCI_CD_PERMANENT,
 };
 
diff --git a/arch/arm/mach-sa1100/collie.c b/arch/arm/mach-sa1100/collie.c
index 48885b7efd6b..c7f418b0cde9 100644
--- a/arch/arm/mach-sa1100/collie.c
+++ b/arch/arm/mach-sa1100/collie.c
@@ -313,6 +313,10 @@ static struct sa1100fb_mach_info collie_lcd_info = {
 
         .lccr0          = LCCR0_Color | LCCR0_Sngl | LCCR0_Act,
         .lccr3          = LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2),
+
+#ifdef CONFIG_BACKLIGHT_LOCOMO
+        .lcd_power      = locomolcd_power
+#endif
 };
 
 static void __init collie_init(void)
diff --git a/arch/arm/mach-sa1100/generic.c b/arch/arm/mach-sa1100/generic.c
index 7c524b4e415d..16be4c56abe3 100644
--- a/arch/arm/mach-sa1100/generic.c
+++ b/arch/arm/mach-sa1100/generic.c
@@ -306,7 +306,7 @@ void sa11x0_register_irda(struct irda_platform_data *irda)
 }
 
 static struct resource sa1100_rtc_resources[] = {
-        DEFINE_RES_MEM(0x90010000, 0x9001003f),
+        DEFINE_RES_MEM(0x90010000, 0x40),
         DEFINE_RES_IRQ_NAMED(IRQ_RTC1Hz, "rtc 1Hz"),
         DEFINE_RES_IRQ_NAMED(IRQ_RTCAlrm, "rtc alarm"),
 };
diff --git a/arch/arm/mach-sa1100/include/mach/collie.h b/arch/arm/mach-sa1100/include/mach/collie.h
index 52acda7061b7..f33679d2d3ee 100644
--- a/arch/arm/mach-sa1100/include/mach/collie.h
+++ b/arch/arm/mach-sa1100/include/mach/collie.h
@@ -1,7 +1,7 @@
 /*
  * arch/arm/mach-sa1100/include/mach/collie.h
  *
- * This file contains the hardware specific definitions for Assabet
+ * This file contains the hardware specific definitions for Collie
  * Only include this file from SA1100-specific files.
  *
  * ChangeLog:
@@ -13,6 +13,7 @@
 #ifndef __ASM_ARCH_COLLIE_H
 #define __ASM_ARCH_COLLIE_H
 
+extern void locomolcd_power(int on);
 
 #define COLLIE_SCOOP_GPIO_BASE  (GPIO_MAX + 1)
 #define COLLIE_GPIO_CHARGE_ON   (COLLIE_SCOOP_GPIO_BASE + 0)
diff --git a/arch/arm/mach-shmobile/board-ag5evm.c b/arch/arm/mach-shmobile/board-ag5evm.c
index cb224a344af0..0891ec6e27f5 100644
--- a/arch/arm/mach-shmobile/board-ag5evm.c
+++ b/arch/arm/mach-shmobile/board-ag5evm.c
@@ -365,23 +365,13 @@ static struct platform_device mipidsi0_device = {
 };
 
 /* SDHI0 */
-static irqreturn_t ag5evm_sdhi0_gpio_cd(int irq, void *arg)
-{
-        struct device *dev = arg;
-        struct sh_mobile_sdhi_info *info = dev->platform_data;
-        struct tmio_mmc_data *pdata = info->pdata;
-
-        tmio_mmc_cd_wakeup(pdata);
-
-        return IRQ_HANDLED;
-}
-
 static struct sh_mobile_sdhi_info sdhi0_info = {
         .dma_slave_tx   = SHDMA_SLAVE_SDHI0_TX,
         .dma_slave_rx   = SHDMA_SLAVE_SDHI0_RX,
-        .tmio_flags     = TMIO_MMC_HAS_IDLE_WAIT,
+        .tmio_flags     = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_USE_GPIO_CD,
         .tmio_caps      = MMC_CAP_SD_HIGHSPEED,
         .tmio_ocr_mask  = MMC_VDD_27_28 | MMC_VDD_28_29,
+        .cd_gpio        = GPIO_PORT251,
 };
 
 static struct resource sdhi0_resources[] = {
@@ -557,7 +547,6 @@ static void __init ag5evm_init(void)
         lcd_backlight_reset();
 
         /* enable SDHI0 on CN15 [SD I/F] */
-        gpio_request(GPIO_FN_SDHICD0, NULL);
         gpio_request(GPIO_FN_SDHIWP0, NULL);
         gpio_request(GPIO_FN_SDHICMD0, NULL);
         gpio_request(GPIO_FN_SDHICLK0, NULL);
@@ -566,13 +555,6 @@ static void __init ag5evm_init(void)
         gpio_request(GPIO_FN_SDHID0_1, NULL);
         gpio_request(GPIO_FN_SDHID0_0, NULL);
 
-        if (!request_irq(intcs_evt2irq(0x3c0), ag5evm_sdhi0_gpio_cd,
-                         IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
-                         "sdhi0 cd", &sdhi0_device.dev))
-                sdhi0_info.tmio_flags |= TMIO_MMC_HAS_COLD_CD;
-        else
-                pr_warn("Unable to setup SDHI0 GPIO IRQ\n");
-
         /* enable SDHI1 on CN4 [WLAN I/F] */
         gpio_request(GPIO_FN_SDHICLK1, NULL);
         gpio_request(GPIO_FN_SDHICMD1_PU, NULL);
diff --git a/arch/arm/mach-shmobile/board-mackerel.c b/arch/arm/mach-shmobile/board-mackerel.c
index f49e28abe0ab..8c6202bb6aeb 100644
--- a/arch/arm/mach-shmobile/board-mackerel.c
+++ b/arch/arm/mach-shmobile/board-mackerel.c
@@ -1011,21 +1011,12 @@ static int slot_cn7_get_cd(struct platform_device *pdev)
 }
 
 /* SDHI0 */
-static irqreturn_t mackerel_sdhi0_gpio_cd(int irq, void *arg)
-{
-        struct device *dev = arg;
-        struct sh_mobile_sdhi_info *info = dev->platform_data;
-        struct tmio_mmc_data *pdata = info->pdata;
-
-        tmio_mmc_cd_wakeup(pdata);
-
-        return IRQ_HANDLED;
-}
-
 static struct sh_mobile_sdhi_info sdhi0_info = {
         .dma_slave_tx   = SHDMA_SLAVE_SDHI0_TX,
         .dma_slave_rx   = SHDMA_SLAVE_SDHI0_RX,
+        .tmio_flags     = TMIO_MMC_USE_GPIO_CD,
         .tmio_caps      = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ,
+        .cd_gpio        = GPIO_PORT172,
 };
 
 static struct resource sdhi0_resources[] = {
@@ -1384,7 +1375,6 @@ static void __init mackerel_init(void)
 {
         u32 srcr4;
         struct clk *clk;
-        int ret;
 
         /* External clock source */
         clk_set_rate(&sh7372_dv_clki_clk, 27000000);
@@ -1481,7 +1471,6 @@ static void __init mackerel_init(void)
         irq_set_irq_type(IRQ21, IRQ_TYPE_LEVEL_HIGH);
 
         /* enable SDHI0 */
-        gpio_request(GPIO_FN_SDHICD0, NULL);
         gpio_request(GPIO_FN_SDHIWP0, NULL);
         gpio_request(GPIO_FN_SDHICMD0, NULL);
         gpio_request(GPIO_FN_SDHICLK0, NULL);
@@ -1490,13 +1479,6 @@ static void __init mackerel_init(void)
         gpio_request(GPIO_FN_SDHID0_1, NULL);
         gpio_request(GPIO_FN_SDHID0_0, NULL);
 
-        ret = request_irq(evt2irq(0x3340), mackerel_sdhi0_gpio_cd,
-                          IRQF_TRIGGER_FALLING, "sdhi0 cd", &sdhi0_device.dev);
-        if (!ret)
-                sdhi0_info.tmio_flags |= TMIO_MMC_HAS_COLD_CD;
-        else
-                pr_err("Cannot get IRQ #%d: %d\n", evt2irq(0x3340), ret);
-
 #if !defined(CONFIG_MMC_SH_MMCIF) && !defined(CONFIG_MMC_SH_MMCIF_MODULE)
         /* enable SDHI1 */
         gpio_request(GPIO_FN_SDHICMD1, NULL);
diff --git a/arch/arm/mach-shmobile/headsmp.S b/arch/arm/mach-shmobile/headsmp.S
index 6ac015c89206..b202c1272526 100644
--- a/arch/arm/mach-shmobile/headsmp.S
+++ b/arch/arm/mach-shmobile/headsmp.S
@@ -16,6 +16,59 @@
 
         __CPUINIT
 
+/* Cache invalidation nicked from arch/arm/mach-imx/head-v7.S, thanks!
+ *
+ * The secondary kernel init calls v7_flush_dcache_all before it enables
+ * the L1; however, the L1 comes out of reset in an undefined state, so
+ * the clean + invalidate performed by v7_flush_dcache_all causes a bunch
+ * of cache lines with uninitialized data and uninitialized tags to get
+ * written out to memory, which does really unpleasant things to the main
+ * processor.  We fix this by performing an invalidate, rather than a
+ * clean + invalidate, before jumping into the kernel.
+ *
+ * This funciton is cloned from arch/arm/mach-tegra/headsmp.S, and needs
+ * to be called for both secondary cores startup and primary core resume
+ * procedures.  Ideally, it should be moved into arch/arm/mm/cache-v7.S.
+ */
+ENTRY(v7_invalidate_l1)
+        mov     r0, #0
+        mcr     p15, 0, r0, c7, c5, 0   @ invalidate I cache
+        mcr     p15, 2, r0, c0, c0, 0
+        mrc     p15, 1, r0, c0, c0, 0
+
+        ldr     r1, =0x7fff
+        and     r2, r1, r0, lsr #13
+
+        ldr     r1, =0x3ff
+
+        and     r3, r1, r0, lsr #3      @ NumWays - 1
+        add     r2, r2, #1              @ NumSets
+
+        and     r0, r0, #0x7
+        add     r0, r0, #4      @ SetShift
+
+        clz     r1, r3          @ WayShift
+        add     r4, r3, #1      @ NumWays
+1:      sub     r2, r2, #1      @ NumSets--
+        mov     r3, r4          @ Temp = NumWays
+2:      subs    r3, r3, #1      @ Temp--
+        mov     r5, r3, lsl r1
+        mov     r6, r2, lsl r0
+        orr     r5, r5, r6      @ Reg = (Temp<<WayShift)|(NumSets<<SetShift)
+        mcr     p15, 0, r5, c7, c6, 2
+        bgt     2b
+        cmp     r2, #0
+        bgt     1b
+        dsb
+        isb
+        mov     pc, lr
+ENDPROC(v7_invalidate_l1)
+
+ENTRY(shmobile_invalidate_start)
+        bl      v7_invalidate_l1
+        b       secondary_startup
+ENDPROC(shmobile_invalidate_start)
+
 /*
  * Reset vector for secondary CPUs.
  * This will be mapped at address 0 by SBAR register.
@@ -24,4 +77,5 @@
         .align  12
 ENTRY(shmobile_secondary_vector)
         ldr     pc, 1f
-1:      .long   secondary_startup - PAGE_OFFSET + PLAT_PHYS_OFFSET
+1:      .long   shmobile_invalidate_start - PAGE_OFFSET + PLAT_PHYS_OFFSET
+ENDPROC(shmobile_secondary_vector)
diff --git a/arch/arm/mach-shmobile/include/mach/common.h b/arch/arm/mach-shmobile/include/mach/common.h
index 83ad3fe0a75f..c85e6ecda606 100644
--- a/arch/arm/mach-shmobile/include/mach/common.h
+++ b/arch/arm/mach-shmobile/include/mach/common.h
@@ -4,7 +4,6 @@
 extern void shmobile_earlytimer_init(void);
 extern struct sys_timer shmobile_timer;
 struct twd_local_timer;
-void shmobile_twd_init(struct twd_local_timer *twd_local_timer);
 extern void shmobile_setup_console(void);
 extern void shmobile_secondary_vector(void);
 extern int shmobile_platform_cpu_kill(unsigned int cpu);
@@ -82,5 +81,6 @@ extern int r8a7779_platform_cpu_kill(unsigned int cpu);
 extern void r8a7779_secondary_init(unsigned int cpu);
 extern int r8a7779_boot_secondary(unsigned int cpu);
 extern void r8a7779_smp_prepare_cpus(void);
+extern void r8a7779_register_twd(void);
 
 #endif /* __ARCH_MACH_COMMON_H */
diff --git a/arch/arm/mach-shmobile/setup-r8a7779.c b/arch/arm/mach-shmobile/setup-r8a7779.c
index 12c6f529ab89..e98e46f6cf55 100644
--- a/arch/arm/mach-shmobile/setup-r8a7779.c
+++ b/arch/arm/mach-shmobile/setup-r8a7779.c
@@ -262,10 +262,14 @@ void __init r8a7779_add_standard_devices(void)
                             ARRAY_SIZE(r8a7779_late_devices));
 }
 
+/* do nothing for !CONFIG_SMP or !CONFIG_HAVE_TWD */
+void __init __weak r8a7779_register_twd(void) { }
+
 static void __init r8a7779_earlytimer_init(void)
 {
         r8a7779_clock_init();
         shmobile_earlytimer_init();
+        r8a7779_register_twd();
 }
 
 void __init r8a7779_add_early_devices(void)
diff --git a/arch/arm/mach-shmobile/setup-sh73a0.c b/arch/arm/mach-shmobile/setup-sh73a0.c
index 5bebffc10455..04a0dfe75493 100644
--- a/arch/arm/mach-shmobile/setup-sh73a0.c
+++ b/arch/arm/mach-shmobile/setup-sh73a0.c
@@ -688,10 +688,14 @@ void __init sh73a0_add_standard_devices(void)
                             ARRAY_SIZE(sh73a0_late_devices));
 }
 
+/* do nothing for !CONFIG_SMP or !CONFIG_HAVE_TWD */
+void __init __weak sh73a0_register_twd(void) { }
+
 static void __init sh73a0_earlytimer_init(void)
 {
         sh73a0_clock_init();
         shmobile_earlytimer_init();
+        sh73a0_register_twd();
 }
 
 void __init sh73a0_add_early_devices(void)
diff --git a/arch/arm/mach-shmobile/smp-r8a7779.c b/arch/arm/mach-shmobile/smp-r8a7779.c
index b62e19d4c9af..6d1d0238cbf7 100644
--- a/arch/arm/mach-shmobile/smp-r8a7779.c
+++ b/arch/arm/mach-shmobile/smp-r8a7779.c
@@ -64,8 +64,15 @@ static void __iomem *scu_base_addr(void)
 static DEFINE_SPINLOCK(scu_lock);
 static unsigned long tmp;
 
+#ifdef CONFIG_HAVE_ARM_TWD
 static DEFINE_TWD_LOCAL_TIMER(twd_local_timer, 0xf0000600, 29);
 
+void __init r8a7779_register_twd(void)
+{
+        twd_local_timer_register(&twd_local_timer);
+}
+#endif
+
 static void modify_scu_cpu_psr(unsigned long set, unsigned long clr)
 {
         void __iomem *scu_base = scu_base_addr();
@@ -84,7 +91,6 @@ unsigned int __init r8a7779_get_core_count(void)
 {
         void __iomem *scu_base = scu_base_addr();
 
-        shmobile_twd_init(&twd_local_timer);
         return scu_get_core_count(scu_base);
 }
 
diff --git a/arch/arm/mach-shmobile/smp-sh73a0.c b/arch/arm/mach-shmobile/smp-sh73a0.c
index 14ad8b052f1a..e36c41c4ab40 100644
--- a/arch/arm/mach-shmobile/smp-sh73a0.c
+++ b/arch/arm/mach-shmobile/smp-sh73a0.c
@@ -42,7 +42,13 @@ static void __iomem *scu_base_addr(void)
 static DEFINE_SPINLOCK(scu_lock);
 static unsigned long tmp;
 
+#ifdef CONFIG_HAVE_ARM_TWD
 static DEFINE_TWD_LOCAL_TIMER(twd_local_timer, 0xf0000600, 29);
+void __init sh73a0_register_twd(void)
+{
+        twd_local_timer_register(&twd_local_timer);
+}
+#endif
 
 static void modify_scu_cpu_psr(unsigned long set, unsigned long clr)
 {
@@ -62,7 +68,6 @@ unsigned int __init sh73a0_get_core_count(void)
 {
         void __iomem *scu_base = scu_base_addr();
 
-        shmobile_twd_init(&twd_local_timer);
         return scu_get_core_count(scu_base);
 }
 
diff --git a/arch/arm/mach-shmobile/timer.c b/arch/arm/mach-shmobile/timer.c
index 2fba5f3d1c8a..8b79e7917a23 100644
--- a/arch/arm/mach-shmobile/timer.c
+++ b/arch/arm/mach-shmobile/timer.c
@@ -46,15 +46,6 @@ static void __init shmobile_timer_init(void)
 {
 }
 
-void __init shmobile_twd_init(struct twd_local_timer *twd_local_timer)
-{
-#ifdef CONFIG_HAVE_ARM_TWD
-        int err = twd_local_timer_register(twd_local_timer);
-        if (err)
-                pr_err("twd_local_timer_register failed %d\n", err);
-#endif
-}
-
 struct sys_timer shmobile_timer = {
         .init           = shmobile_timer_init,
 };
diff --git a/arch/arm/mach-u300/core.c b/arch/arm/mach-u300/core.c
index 1621ad07d284..33339745d432 100644
--- a/arch/arm/mach-u300/core.c
+++ b/arch/arm/mach-u300/core.c
@@ -1667,8 +1667,10 @@ void __init u300_init_irq(void)
 
         for (i = 0; i < U300_VIC_IRQS_END; i++)
                 set_bit(i, (unsigned long *) &mask[0]);
-        vic_init((void __iomem *) U300_INTCON0_VBASE, 0, mask[0], mask[0]);
-        vic_init((void __iomem *) U300_INTCON1_VBASE, 32, mask[1], mask[1]);
+        vic_init((void __iomem *) U300_INTCON0_VBASE, IRQ_U300_INTCON0_START,
+                 mask[0], mask[0]);
+        vic_init((void __iomem *) U300_INTCON1_VBASE, IRQ_U300_INTCON1_START,
+                 mask[1], mask[1]);
 }
 
 
diff --git a/arch/arm/mach-u300/i2c.c b/arch/arm/mach-u300/i2c.c
index a38f80238ea9..cb04bd6ab3e7 100644
--- a/arch/arm/mach-u300/i2c.c
+++ b/arch/arm/mach-u300/i2c.c
@@ -146,9 +146,6 @@ static struct ab3100_platform_data ab3100_plf_data = {
                                 .min_uV = 1800000,
                                 .max_uV = 1800000,
                                 .valid_modes_mask = REGULATOR_MODE_NORMAL,
-                                .valid_ops_mask =
-                                REGULATOR_CHANGE_VOLTAGE |
-                                REGULATOR_CHANGE_STATUS,
                                 .always_on = 1,
                                 .boot_on = 1,
                         },
@@ -160,9 +157,6 @@ static struct ab3100_platform_data ab3100_plf_data = {
                                 .min_uV = 2500000,
                                 .max_uV = 2500000,
                                 .valid_modes_mask = REGULATOR_MODE_NORMAL,
-                                .valid_ops_mask =
-                                REGULATOR_CHANGE_VOLTAGE |
-                                REGULATOR_CHANGE_STATUS,
                                 .always_on = 1,
                                 .boot_on = 1,
                         },
@@ -230,8 +224,7 @@ static struct ab3100_platform_data ab3100_plf_data = {
                                 .max_uV = 1800000,
                                 .valid_modes_mask = REGULATOR_MODE_NORMAL,
                                 .valid_ops_mask =
-                                REGULATOR_CHANGE_VOLTAGE |
-                                REGULATOR_CHANGE_STATUS,
+                                REGULATOR_CHANGE_VOLTAGE,
                                 .always_on = 1,
                                 .boot_on = 1,
                         },
diff --git a/arch/arm/mach-u300/include/mach/irqs.h b/arch/arm/mach-u300/include/mach/irqs.h
index ee78a26707eb..ec09c1e07b1a 100644
--- a/arch/arm/mach-u300/include/mach/irqs.h
+++ b/arch/arm/mach-u300/include/mach/irqs.h
@@ -12,101 +12,101 @@
 #ifndef __MACH_IRQS_H
 #define __MACH_IRQS_H
 
-#define IRQ_U300_INTCON0_START          0
-#define IRQ_U300_INTCON1_START          32
+#define IRQ_U300_INTCON0_START          1
+#define IRQ_U300_INTCON1_START          33
 /* These are on INTCON0 - 30 lines */
-#define IRQ_U300_IRQ0_EXT               0
-#define IRQ_U300_IRQ1_EXT               1
-#define IRQ_U300_DMA                    2
-#define IRQ_U300_VIDEO_ENC_0            3
-#define IRQ_U300_VIDEO_ENC_1            4
-#define IRQ_U300_AAIF_RX                5
-#define IRQ_U300_AAIF_TX                6
-#define IRQ_U300_AAIF_VGPIO             7
-#define IRQ_U300_AAIF_WAKEUP            8
-#define IRQ_U300_PCM_I2S0_FRAME         9
-#define IRQ_U300_PCM_I2S0_FIFO          10
-#define IRQ_U300_PCM_I2S1_FRAME         11
-#define IRQ_U300_PCM_I2S1_FIFO          12
-#define IRQ_U300_XGAM_GAMCON            13
-#define IRQ_U300_XGAM_CDI               14
-#define IRQ_U300_XGAM_CDICON            15
+#define IRQ_U300_IRQ0_EXT               1
+#define IRQ_U300_IRQ1_EXT               2
+#define IRQ_U300_DMA                    3
+#define IRQ_U300_VIDEO_ENC_0            4
+#define IRQ_U300_VIDEO_ENC_1            5
+#define IRQ_U300_AAIF_RX                6
+#define IRQ_U300_AAIF_TX                7
+#define IRQ_U300_AAIF_VGPIO             8
+#define IRQ_U300_AAIF_WAKEUP            9
+#define IRQ_U300_PCM_I2S0_FRAME         10
+#define IRQ_U300_PCM_I2S0_FIFO          11
+#define IRQ_U300_PCM_I2S1_FRAME         12
+#define IRQ_U300_PCM_I2S1_FIFO          13
+#define IRQ_U300_XGAM_GAMCON            14
+#define IRQ_U300_XGAM_CDI               15
+#define IRQ_U300_XGAM_CDICON            16
 #if defined(CONFIG_MACH_U300_BS2X) || defined(CONFIG_MACH_U300_BS330)
 /* MMIACC not used on the DB3210 or DB3350 chips */
-#define IRQ_U300_XGAM_MMIACC            16
+#define IRQ_U300_XGAM_MMIACC            17
 #endif
-#define IRQ_U300_XGAM_PDI               17
-#define IRQ_U300_XGAM_PDICON            18
-#define IRQ_U300_XGAM_GAMEACC           19
-#define IRQ_U300_XGAM_MCIDCT            20
-#define IRQ_U300_APEX                   21
-#define IRQ_U300_UART0                  22
-#define IRQ_U300_SPI                    23
-#define IRQ_U300_TIMER_APP_OS           24
-#define IRQ_U300_TIMER_APP_DD           25
-#define IRQ_U300_TIMER_APP_GP1          26
-#define IRQ_U300_TIMER_APP_GP2          27
-#define IRQ_U300_TIMER_OS               28
-#define IRQ_U300_TIMER_MS               29
-#define IRQ_U300_KEYPAD_KEYBF           30
-#define IRQ_U300_KEYPAD_KEYBR           31
+#define IRQ_U300_XGAM_PDI               18
+#define IRQ_U300_XGAM_PDICON            19
+#define IRQ_U300_XGAM_GAMEACC           20
+#define IRQ_U300_XGAM_MCIDCT            21
+#define IRQ_U300_APEX                   22
+#define IRQ_U300_UART0                  23
+#define IRQ_U300_SPI                    24
+#define IRQ_U300_TIMER_APP_OS           25
+#define IRQ_U300_TIMER_APP_DD           26
+#define IRQ_U300_TIMER_APP_GP1          27
+#define IRQ_U300_TIMER_APP_GP2          28
+#define IRQ_U300_TIMER_OS               29
+#define IRQ_U300_TIMER_MS               30
+#define IRQ_U300_KEYPAD_KEYBF           31
+#define IRQ_U300_KEYPAD_KEYBR           32
 /* These are on INTCON1 - 32 lines */
-#define IRQ_U300_GPIO_PORT0             32
-#define IRQ_U300_GPIO_PORT1             33
-#define IRQ_U300_GPIO_PORT2             34
+#define IRQ_U300_GPIO_PORT0             33
+#define IRQ_U300_GPIO_PORT1             34
+#define IRQ_U300_GPIO_PORT2             35
 
 #if defined(CONFIG_MACH_U300_BS2X) || defined(CONFIG_MACH_U300_BS330) || \
     defined(CONFIG_MACH_U300_BS335)
 /* These are for DB3150, DB3200 and DB3350 */
-#define IRQ_U300_WDOG                   35
-#define IRQ_U300_EVHIST                 36
-#define IRQ_U300_MSPRO                  37
-#define IRQ_U300_MMCSD_MCIINTR0         38
-#define IRQ_U300_MMCSD_MCIINTR1         39
-#define IRQ_U300_I2C0                   40
-#define IRQ_U300_I2C1                   41
-#define IRQ_U300_RTC                    42
-#define IRQ_U300_NFIF                   43
-#define IRQ_U300_NFIF2                  44
+#define IRQ_U300_WDOG                   36
+#define IRQ_U300_EVHIST                 37
+#define IRQ_U300_MSPRO                  38
+#define IRQ_U300_MMCSD_MCIINTR0         39
+#define IRQ_U300_MMCSD_MCIINTR1         40
+#define IRQ_U300_I2C0                   41
+#define IRQ_U300_I2C1                   42
+#define IRQ_U300_RTC                    43
+#define IRQ_U300_NFIF                   44
+#define IRQ_U300_NFIF2                  45
 #endif
 
 /* DB3150 and DB3200 have only 45 IRQs */
 #if defined(CONFIG_MACH_U300_BS2X) || defined(CONFIG_MACH_U300_BS330)
-#define U300_VIC_IRQS_END               45
+#define U300_VIC_IRQS_END               46
 #endif
 
 /* The DB3350-specific interrupt lines */
 #ifdef CONFIG_MACH_U300_BS335
-#define IRQ_U300_ISP_F0                 45
-#define IRQ_U300_ISP_F1                 46
-#define IRQ_U300_ISP_F2                 47
-#define IRQ_U300_ISP_F3                 48
-#define IRQ_U300_ISP_F4                 49
-#define IRQ_U300_GPIO_PORT3             50
-#define IRQ_U300_SYSCON_PLL_LOCK        51
-#define IRQ_U300_UART1                  52
-#define IRQ_U300_GPIO_PORT4             53
-#define IRQ_U300_GPIO_PORT5             54
-#define IRQ_U300_GPIO_PORT6             55
-#define U300_VIC_IRQS_END               56
+#define IRQ_U300_ISP_F0                 46
+#define IRQ_U300_ISP_F1                 47
+#define IRQ_U300_ISP_F2                 48
+#define IRQ_U300_ISP_F3                 49
+#define IRQ_U300_ISP_F4                 50
+#define IRQ_U300_GPIO_PORT3             51
+#define IRQ_U300_SYSCON_PLL_LOCK        52
+#define IRQ_U300_UART1                  53
+#define IRQ_U300_GPIO_PORT4             54
+#define IRQ_U300_GPIO_PORT5             55
+#define IRQ_U300_GPIO_PORT6             56
+#define U300_VIC_IRQS_END               57
 #endif
 
 /* The DB3210-specific interrupt lines */
 #ifdef CONFIG_MACH_U300_BS365
-#define IRQ_U300_GPIO_PORT3             35
-#define IRQ_U300_GPIO_PORT4             36
-#define IRQ_U300_WDOG                   37
-#define IRQ_U300_EVHIST                 38
-#define IRQ_U300_MSPRO                  39
-#define IRQ_U300_MMCSD_MCIINTR0         40
-#define IRQ_U300_MMCSD_MCIINTR1         41
-#define IRQ_U300_I2C0                   42
-#define IRQ_U300_I2C1                   43
-#define IRQ_U300_RTC                    44
-#define IRQ_U300_NFIF                   45
-#define IRQ_U300_NFIF2                  46
-#define IRQ_U300_SYSCON_PLL_LOCK        47
-#define U300_VIC_IRQS_END               48
+#define IRQ_U300_GPIO_PORT3             36
+#define IRQ_U300_GPIO_PORT4             37
+#define IRQ_U300_WDOG                   38
+#define IRQ_U300_EVHIST                 39
+#define IRQ_U300_MSPRO                  40
+#define IRQ_U300_MMCSD_MCIINTR0         41
+#define IRQ_U300_MMCSD_MCIINTR1         42
+#define IRQ_U300_I2C0                   43
+#define IRQ_U300_I2C1                   44
+#define IRQ_U300_RTC                    45
+#define IRQ_U300_NFIF                   46
+#define IRQ_U300_NFIF2                  47
+#define IRQ_U300_SYSCON_PLL_LOCK        48
+#define U300_VIC_IRQS_END               49
 #endif
 
 /* Maximum 8*7 GPIO lines */
@@ -117,6 +117,6 @@
 #define IRQ_U300_GPIO_END               (U300_VIC_IRQS_END)
 #endif
 
-#define NR_IRQS                         (IRQ_U300_GPIO_END)
+#define NR_IRQS                         (IRQ_U300_GPIO_END - IRQ_U300_INTCON0_START)
 
 #endif
diff --git a/arch/arm/mach-ux500/Kconfig b/arch/arm/mach-ux500/Kconfig
index 880d02ec89d4..ef7099eea0f2 100644
--- a/arch/arm/mach-ux500/Kconfig
+++ b/arch/arm/mach-ux500/Kconfig
@@ -17,6 +17,7 @@ config UX500_SOC_DB5500
 config UX500_SOC_DB8500
         bool
         select MFD_DB8500_PRCMU
+        select REGULATOR
         select REGULATOR_DB8500_PRCMU
         select CPU_FREQ_TABLE if CPU_FREQ
 
diff --git a/arch/arm/mach-ux500/mbox-db5500.c b/arch/arm/mach-ux500/mbox-db5500.c
index 2b2d51caf9d8..0127490218cd 100644
--- a/arch/arm/mach-ux500/mbox-db5500.c
+++ b/arch/arm/mach-ux500/mbox-db5500.c
@@ -168,7 +168,7 @@ static ssize_t mbox_read_fifo(struct device *dev,
         return sprintf(buf, "0x%X\n", mbox_value);
 }
 
-static DEVICE_ATTR(fifo, S_IWUGO | S_IRUGO, mbox_read_fifo, mbox_write_fifo);
+static DEVICE_ATTR(fifo, S_IWUSR | S_IRUGO, mbox_read_fifo, mbox_write_fifo);
 
 static int mbox_show(struct seq_file *s, void *data)
 {
diff --git a/arch/arm/mach-ux500/platsmp.c b/arch/arm/mach-ux500/platsmp.c
index d2058ef8345f..eff5842f6232 100644
--- a/arch/arm/mach-ux500/platsmp.c
+++ b/arch/arm/mach-ux500/platsmp.c
@@ -99,7 +99,7 @@ int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle)
          */
         write_pen_release(cpu_logical_map(cpu));
 
-        gic_raise_softirq(cpumask_of(cpu), 1);
+        smp_send_reschedule(cpu);
 
         timeout = jiffies + (1 * HZ);
         while (time_before(jiffies, timeout)) {
diff --git a/arch/arm/mach-versatile/pci.c b/arch/arm/mach-versatile/pci.c
index a6e23f464528..d2268be8c34c 100644
--- a/arch/arm/mach-versatile/pci.c
+++ b/arch/arm/mach-versatile/pci.c
@@ -190,7 +190,7 @@ static struct resource pre_mem = {
         .flags  = IORESOURCE_MEM | IORESOURCE_PREFETCH,
 };
 
-static int __init pci_versatile_setup_resources(struct list_head *resources)
+static int __init pci_versatile_setup_resources(struct pci_sys_data *sys)
 {
         int ret = 0;
 
@@ -218,9 +218,9 @@ static int __init pci_versatile_setup_resources(struct list_head *resources)
          * the mem resource for this bus
          * the prefetch mem resource for this bus
          */
-        pci_add_resource_offset(resources, &io_mem, sys->io_offset);
-        pci_add_resource_offset(resources, &non_mem, sys->mem_offset);
-        pci_add_resource_offset(resources, &pre_mem, sys->mem_offset);
+        pci_add_resource_offset(&sys->resources, &io_mem, sys->io_offset);
+        pci_add_resource_offset(&sys->resources, &non_mem, sys->mem_offset);
+        pci_add_resource_offset(&sys->resources, &pre_mem, sys->mem_offset);
 
         goto out;
 
@@ -249,7 +249,7 @@ int __init pci_versatile_setup(int nr, struct pci_sys_data *sys)
 
         if (nr == 0) {
                 sys->mem_offset = 0;
-                ret = pci_versatile_setup_resources(&sys->resources);
+                ret = pci_versatile_setup_resources(sys);
                 if (ret < 0) {
                         printk("pci_versatile_setup: resources... oops?\n");
                         goto out;
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 7edef9121632..7c8a7d8467bf 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -723,7 +723,7 @@ config CPU_HIGH_VECTOR
         bool "Select the High exception vector"
         help
           Say Y here to select high exception vector(0xFFFF0000~).
-          The exception vector can be vary depending on the platform
+          The exception vector can vary depending on the platform
           design in nommu mode. If your platform needs to select
           high exception vector, say Y.
           Otherwise or if you are unsure, say N, and the low exception
diff --git a/arch/arm/mm/abort-ev6.S b/arch/arm/mm/abort-ev6.S
index ff1f7cc11f87..80741992a9fc 100644
--- a/arch/arm/mm/abort-ev6.S
+++ b/arch/arm/mm/abort-ev6.S
@@ -26,18 +26,23 @@ ENTRY(v6_early_abort)
         mrc     p15, 0, r1, c5, c0, 0           @ get FSR
         mrc     p15, 0, r0, c6, c0, 0           @ get FAR
 /*
- * Faulty SWP instruction on 1136 doesn't set bit 11 in DFSR (erratum 326103).
- * The test below covers all the write situations, including Java bytecodes
+ * Faulty SWP instruction on 1136 doesn't set bit 11 in DFSR.
  */
-        bic     r1, r1, #1 << 11                @ clear bit 11 of FSR
+#ifdef CONFIG_ARM_ERRATA_326103
+        ldr     ip, =0x4107b36
+        mrc     p15, 0, r3, c0, c0, 0           @ get processor id
+        teq     ip, r3, lsr #4                  @ r0 ARM1136?
+        bne     do_DataAbort
         tst     r5, #PSR_J_BIT                  @ Java?
+        tsteq   r5, #PSR_T_BIT                  @ Thumb?
         bne     do_DataAbort
-        do_thumb_abort fsr=r1, pc=r4, psr=r5, tmp=r3
-        ldreq   r3, [r4]                        @ read aborted ARM instruction
+        bic     r1, r1, #1 << 11                @ clear bit 11 of FSR
+        ldr     r3, [r4]                        @ read aborted ARM instruction
 #ifdef CONFIG_CPU_ENDIAN_BE8
-        reveq   r3, r3
+        rev     r3, r3
 #endif
         do_ldrd_abort tmp=ip, insn=r3
         tst     r3, #1 << 20                    @ L = 0 -> write
         orreq   r1, r1, #1 << 11                @ yes.
+#endif
         b       do_DataAbort
diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c
index a53fd2aaa2f4..2a8e380501e8 100644
--- a/arch/arm/mm/cache-l2x0.c
+++ b/arch/arm/mm/cache-l2x0.c
@@ -32,6 +32,7 @@ static void __iomem *l2x0_base;
 static DEFINE_RAW_SPINLOCK(l2x0_lock);
 static u32 l2x0_way_mask;       /* Bitmask of active ways */
 static u32 l2x0_size;
+static unsigned long sync_reg_offset = L2X0_CACHE_SYNC;
 
 struct l2x0_regs l2x0_saved_regs;
 
@@ -61,12 +62,7 @@ static inline void cache_sync(void)
 {
         void __iomem *base = l2x0_base;
 
-#ifdef CONFIG_PL310_ERRATA_753970
-        /* write to an unmmapped register */
-        writel_relaxed(0, base + L2X0_DUMMY_REG);
-#else
-        writel_relaxed(0, base + L2X0_CACHE_SYNC);
-#endif
+        writel_relaxed(0, base + sync_reg_offset);
         cache_wait(base + L2X0_CACHE_SYNC, 1);
 }
 
@@ -85,10 +81,13 @@ static inline void l2x0_inv_line(unsigned long addr)
 }
 
 #if defined(CONFIG_PL310_ERRATA_588369) || defined(CONFIG_PL310_ERRATA_727915)
+static inline void debug_writel(unsigned long val)
+{
+        if (outer_cache.set_debug)
+                outer_cache.set_debug(val);
+}
 
-#define debug_writel(val)       outer_cache.set_debug(val)
-
-static void l2x0_set_debug(unsigned long val)
+static void pl310_set_debug(unsigned long val)
 {
         writel_relaxed(val, l2x0_base + L2X0_DEBUG_CTRL);
 }
@@ -98,7 +97,7 @@ static inline void debug_writel(unsigned long val)
 {
 }
 
-#define l2x0_set_debug  NULL
+#define pl310_set_debug NULL
 #endif
 
 #ifdef CONFIG_PL310_ERRATA_588369
@@ -331,6 +330,11 @@ void __init l2x0_init(void __iomem *base, u32 aux_val, u32 aux_mask)
                 else
                         ways = 8;
                 type = "L310";
+#ifdef CONFIG_PL310_ERRATA_753970
+                /* Unmapped register. */
+                sync_reg_offset = L2X0_DUMMY_REG;
+#endif
+                outer_cache.set_debug = pl310_set_debug;
                 break;
         case L2X0_CACHE_ID_PART_L210:
                 ways = (aux >> 13) & 0xf;
@@ -379,7 +383,6 @@ void __init l2x0_init(void __iomem *base, u32 aux_val, u32 aux_mask)
         outer_cache.flush_all = l2x0_flush_all;
         outer_cache.inv_all = l2x0_inv_all;
         outer_cache.disable = l2x0_disable;
-        outer_cache.set_debug = l2x0_set_debug;
 
         printk(KERN_INFO "%s cache controller enabled\n", type);
         printk(KERN_INFO "l2x0: %d ways, CACHE_ID 0x%08x, AUX_CTRL 0x%08x, Cache size: %d B\n",
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
index 9055b5a84ec5..f07467533365 100644
--- a/arch/arm/mm/fault.c
+++ b/arch/arm/mm/fault.c
@@ -320,7 +320,7 @@ retry:
          */
 
         perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, addr);
-        if (flags & FAULT_FLAG_ALLOW_RETRY) {
+        if (!(fault & VM_FAULT_ERROR) && flags & FAULT_FLAG_ALLOW_RETRY) {
                 if (fault & VM_FAULT_MAJOR) {
                         tsk->maj_flt++;
                         perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1,
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 595079fa9d1d..8f5813bbffb5 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -293,11 +293,11 @@ EXPORT_SYMBOL(pfn_valid);
 #endif
 
 #ifndef CONFIG_SPARSEMEM
-static void arm_memory_present(void)
+static void __init arm_memory_present(void)
 {
 }
 #else
-static void arm_memory_present(void)
+static void __init arm_memory_present(void)
 {
         struct memblock_region *reg;
 
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index b86f8933ff91..2c7cf2f9c837 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -618,8 +618,8 @@ static void __init alloc_init_section(pud_t *pud, unsigned long addr,
         }
 }
 
-static void alloc_init_pud(pgd_t *pgd, unsigned long addr, unsigned long end,
-        unsigned long phys, const struct mem_type *type)
+static void __init alloc_init_pud(pgd_t *pgd, unsigned long addr,
+        unsigned long end, unsigned long phys, const struct mem_type *type)
 {
         pud_t *pud = pud_offset(pgd, addr);
         unsigned long next;
diff --git a/arch/arm/mm/nommu.c b/arch/arm/mm/nommu.c
index 6486d2f253cd..d51225f90ae2 100644
--- a/arch/arm/mm/nommu.c
+++ b/arch/arm/mm/nommu.c
@@ -13,6 +13,7 @@
 #include <asm/sections.h>
 #include <asm/page.h>
 #include <asm/setup.h>
+#include <asm/traps.h>
 #include <asm/mach/arch.h>
 
 #include "mm.h"
@@ -39,6 +40,7 @@ void __init sanity_check_meminfo(void)
  */
 void __init paging_init(struct machine_desc *mdesc)
 {
+        early_trap_init((void *)CONFIG_VECTORS_BASE);
         bootmem_init();
 }
 
diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S
index f1c8486f7501..c2e2b66f72b5 100644
--- a/arch/arm/mm/proc-v7.S
+++ b/arch/arm/mm/proc-v7.S
@@ -255,6 +255,18 @@ __v7_setup:
         mcr     p15, 0, r5, c10, c2, 0          @ write PRRR
         mcr     p15, 0, r6, c10, c2, 1          @ write NMRR
 #endif
+#ifndef CONFIG_ARM_THUMBEE
+        mrc     p15, 0, r0, c0, c1, 0           @ read ID_PFR0 for ThumbEE
+        and     r0, r0, #(0xf << 12)            @ ThumbEE enabled field
+        teq     r0, #(1 << 12)                  @ check if ThumbEE is present
+        bne     1f
+        mov     r5, #0
+        mcr     p14, 6, r5, c1, c0, 0           @ Initialize TEEHBR to 0
+        mrc     p14, 6, r0, c0, c0, 0           @ load TEECR
+        orr     r0, r0, #1                      @ set the 1st bit in order to
+        mcr     p14, 6, r0, c0, c0, 0           @ stop userspace TEEHBR access
+1:
+#endif
         adr     r5, v7_crval
         ldmia   r5, {r5, r6}
 #ifdef CONFIG_CPU_ENDIAN_BE8
diff --git a/arch/arm/plat-mxc/3ds_debugboard.c b/arch/arm/plat-mxc/3ds_debugboard.c
index d1e31fa1b0c3..5cac2c540f4f 100644
--- a/arch/arm/plat-mxc/3ds_debugboard.c
+++ b/arch/arm/plat-mxc/3ds_debugboard.c
@@ -80,7 +80,7 @@ static struct smsc911x_platform_config smsc911x_config = {
 
 static struct platform_device smsc_lan9217_device = {
         .name = "smsc911x",
-        .id = 0,
+        .id = -1,
         .dev = {
                 .platform_data = &smsc911x_config,
         },
diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig
index ce1e9b96ba1a..ad95c7a5d009 100644
--- a/arch/arm/plat-omap/Kconfig
+++ b/arch/arm/plat-omap/Kconfig
@@ -17,6 +17,7 @@ config ARCH_OMAP1
         select IRQ_DOMAIN
         select HAVE_IDE
         select NEED_MACH_MEMORY_H
+        select NEED_MACH_IO_H if PCCARD
         help
           "Systems based on omap7xx, omap15xx or omap16xx"
 
diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c
index 56b6f8b7053e..62ec5c452792 100644
--- a/arch/arm/plat-omap/clock.c
+++ b/arch/arm/plat-omap/clock.c
@@ -398,32 +398,6 @@ struct clk dummy_ck = {
         .ops    = &clkops_null,
 };
 
-#ifdef CONFIG_CPU_FREQ
-void clk_init_cpufreq_table(struct cpufreq_frequency_table **table)
-{
-        unsigned long flags;
-
-        if (!arch_clock || !arch_clock->clk_init_cpufreq_table)
-                return;
-
-        spin_lock_irqsave(&clockfw_lock, flags);
-        arch_clock->clk_init_cpufreq_table(table);
-        spin_unlock_irqrestore(&clockfw_lock, flags);
-}
-
-void clk_exit_cpufreq_table(struct cpufreq_frequency_table **table)
-{
-        unsigned long flags;
-
-        if (!arch_clock || !arch_clock->clk_exit_cpufreq_table)
-                return;
-
-        spin_lock_irqsave(&clockfw_lock, flags);
-        arch_clock->clk_exit_cpufreq_table(table);
-        spin_unlock_irqrestore(&clockfw_lock, flags);
-}
-#endif
-
 /*
  *
  */
@@ -441,6 +415,8 @@ static int __init clk_disable_unused(void)
                 return 0;
 
         pr_info("clock: disabling unused clocks to save power\n");
+
+        spin_lock_irqsave(&clockfw_lock, flags);
         list_for_each_entry(ck, &clocks, node) {
                 if (ck->ops == &clkops_null)
                         continue;
@@ -448,10 +424,9 @@ static int __init clk_disable_unused(void)
                 if (ck->usecount > 0 || !ck->enable_reg)
                         continue;
 
-                spin_lock_irqsave(&clockfw_lock, flags);
                 arch_clock->clk_disable_unused(ck);
-                spin_unlock_irqrestore(&clockfw_lock, flags);
         }
+        spin_unlock_irqrestore(&clockfw_lock, flags);
 
         return 0;
 }
diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c
index ecdb3da0dea9..c58d896cd5c3 100644
--- a/arch/arm/plat-omap/dma.c
+++ b/arch/arm/plat-omap/dma.c
@@ -916,6 +916,13 @@ void omap_start_dma(int lch)
                         l |= OMAP_DMA_CCR_BUFFERING_DISABLE;
         l |= OMAP_DMA_CCR_EN;
 
+        /*
+         * As dma_write() uses IO accessors which are weakly ordered, there
+         * is no guarantee that data in coherent DMA memory will be visible
+         * to the DMA device.  Add a memory barrier here to ensure that any
+         * such data is visible prior to enabling DMA.
+         */
+        mb();
         p->dma_write(l, CCR, lch);
 
         dma_chan[lch].flags |= OMAP_DMA_ACTIVE;
@@ -965,6 +972,13 @@ void omap_stop_dma(int lch)
                 p->dma_write(l, CCR, lch);
         }
 
+        /*
+         * Ensure that data transferred by DMA is visible to any access
+         * after DMA has been disabled.  This is important for coherent
+         * DMA regions.
+         */
+        mb();
+
         if (!omap_dma_in_1510_mode() && dma_chan[lch].next_lch != -1) {
                 int next_lch, cur_lch = lch;
                 char dma_chan_link_map[dma_lch_count];
diff --git a/arch/arm/plat-omap/include/plat/clock.h b/arch/arm/plat-omap/include/plat/clock.h
index 240a7b9fd946..d0ef57c1d71b 100644
--- a/arch/arm/plat-omap/include/plat/clock.h
+++ b/arch/arm/plat-omap/include/plat/clock.h
@@ -272,8 +272,6 @@ struct clk {
 #endif
 };
 
-struct cpufreq_frequency_table;
-
 struct clk_functions {
         int             (*clk_enable)(struct clk *clk);
         void            (*clk_disable)(struct clk *clk);
@@ -283,10 +281,6 @@ struct clk_functions {
         void            (*clk_allow_idle)(struct clk *clk);
         void            (*clk_deny_idle)(struct clk *clk);
         void            (*clk_disable_unused)(struct clk *clk);
-#ifdef CONFIG_CPU_FREQ
-        void            (*clk_init_cpufreq_table)(struct cpufreq_frequency_table **);
-        void            (*clk_exit_cpufreq_table)(struct cpufreq_frequency_table **);
-#endif
 };
 
 extern int mpurate;
@@ -301,10 +295,6 @@ extern void recalculate_root_clocks(void);
 extern unsigned long followparent_recalc(struct clk *clk);
 extern void clk_enable_init_clocks(void);
 unsigned long omap_fixed_divisor_recalc(struct clk *clk);
-#ifdef CONFIG_CPU_FREQ
-extern void clk_init_cpufreq_table(struct cpufreq_frequency_table **table);
-extern void clk_exit_cpufreq_table(struct cpufreq_frequency_table **table);
-#endif
 extern struct clk *omap_clk_get_by_name(const char *name);
 extern int omap_clk_enable_autoidle_all(void);
 extern int omap_clk_disable_autoidle_all(void);
diff --git a/arch/arm/plat-omap/include/plat/omap_hwmod.h b/arch/arm/plat-omap/include/plat/omap_hwmod.h
index 9e8e63d52aab..3f26db4ee8e6 100644
--- a/arch/arm/plat-omap/include/plat/omap_hwmod.h
+++ b/arch/arm/plat-omap/include/plat/omap_hwmod.h
@@ -47,17 +47,17 @@ extern struct omap_hwmod_sysc_fields omap_hwmod_sysc_type2;
  * with the original PRCM protocol defined for OMAP2420
  */
 #define SYSC_TYPE1_MIDLEMODE_SHIFT      12
-#define SYSC_TYPE1_MIDLEMODE_MASK       (0x3 << SYSC_MIDLEMODE_SHIFT)
+#define SYSC_TYPE1_MIDLEMODE_MASK       (0x3 << SYSC_TYPE1_MIDLEMODE_SHIFT)
 #define SYSC_TYPE1_CLOCKACTIVITY_SHIFT  8
-#define SYSC_TYPE1_CLOCKACTIVITY_MASK   (0x3 << SYSC_CLOCKACTIVITY_SHIFT)
+#define SYSC_TYPE1_CLOCKACTIVITY_MASK   (0x3 << SYSC_TYPE1_CLOCKACTIVITY_SHIFT)
 #define SYSC_TYPE1_SIDLEMODE_SHIFT      3
-#define SYSC_TYPE1_SIDLEMODE_MASK       (0x3 << SYSC_SIDLEMODE_SHIFT)
+#define SYSC_TYPE1_SIDLEMODE_MASK       (0x3 << SYSC_TYPE1_SIDLEMODE_SHIFT)
 #define SYSC_TYPE1_ENAWAKEUP_SHIFT      2
-#define SYSC_TYPE1_ENAWAKEUP_MASK       (1 << SYSC_ENAWAKEUP_SHIFT)
+#define SYSC_TYPE1_ENAWAKEUP_MASK       (1 << SYSC_TYPE1_ENAWAKEUP_SHIFT)
 #define SYSC_TYPE1_SOFTRESET_SHIFT      1
-#define SYSC_TYPE1_SOFTRESET_MASK       (1 << SYSC_SOFTRESET_SHIFT)
+#define SYSC_TYPE1_SOFTRESET_MASK       (1 << SYSC_TYPE1_SOFTRESET_SHIFT)
 #define SYSC_TYPE1_AUTOIDLE_SHIFT       0
-#define SYSC_TYPE1_AUTOIDLE_MASK        (1 << SYSC_AUTOIDLE_SHIFT)
+#define SYSC_TYPE1_AUTOIDLE_MASK        (1 << SYSC_TYPE1_AUTOIDLE_SHIFT)
 
 /*
  * OCP SYSCONFIG bit shifts/masks TYPE2. These are for IPs compliant
@@ -305,6 +305,7 @@ struct omap_hwmod_sysc_fields {
  * @rev_offs: IP block revision register offset (from module base addr)
  * @sysc_offs: OCP_SYSCONFIG register offset (from module base addr)
  * @syss_offs: OCP_SYSSTATUS register offset (from module base addr)
+ * @srst_udelay: Delay needed after doing a softreset in usecs
  * @idlemodes: One or more of {SIDLE,MSTANDBY}_{OFF,FORCE,SMART}
  * @sysc_flags: SYS{C,S}_HAS* flags indicating SYSCONFIG bits supported
  * @clockact: the default value of the module CLOCKACTIVITY bits
@@ -330,9 +331,10 @@ struct omap_hwmod_class_sysconfig {
         u16 sysc_offs;
         u16 syss_offs;
         u16 sysc_flags;
+        struct omap_hwmod_sysc_fields *sysc_fields;
+        u8 srst_udelay;
         u8 idlemodes;
         u8 clockact;
-        struct omap_hwmod_sysc_fields *sysc_fields;
 };
 
 /**
diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c
index eec98afa0f83..f9a8c5341ee9 100644
--- a/arch/arm/plat-omap/sram.c
+++ b/arch/arm/plat-omap/sram.c
@@ -348,7 +348,6 @@ u32 omap3_configure_core_dpll(u32 m2, u32 unlock_dll, u32 f, u32 inc,
                         sdrc_actim_ctrl_b_1, sdrc_mr_1);
 }
 
-#ifdef CONFIG_PM
 void omap3_sram_restore_context(void)
 {
         omap_sram_ceil = omap_sram_base + omap_sram_size;
@@ -358,17 +357,18 @@ void omap3_sram_restore_context(void)
                                omap3_sram_configure_core_dpll_sz);
         omap_push_sram_idle();
 }
-#endif /* CONFIG_PM */
-
-#endif /* CONFIG_ARCH_OMAP3 */
 
 static inline int omap34xx_sram_init(void)
 {
-#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_PM)
         omap3_sram_restore_context();
-#endif
         return 0;
 }
+#else
+static inline int omap34xx_sram_init(void)
+{
+        return 0;
+}
+#endif /* CONFIG_ARCH_OMAP3 */
 
 static inline int am33xx_sram_init(void)
 {
diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig
index 71553f410016..a0ffc77da809 100644
--- a/arch/arm/plat-samsung/Kconfig
+++ b/arch/arm/plat-samsung/Kconfig
@@ -302,6 +302,7 @@ comment "Power management"
 config SAMSUNG_PM_DEBUG
         bool "S3C2410 PM Suspend debug"
         depends on PM
+        select DEBUG_LL
         help
           Say Y here if you want verbose debugging from the PM Suspend and
           Resume code. See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt>
diff --git a/arch/arm/plat-samsung/include/plat/sdhci.h b/arch/arm/plat-samsung/include/plat/sdhci.h
index 317e246ffc56..e834c5ef437c 100644
--- a/arch/arm/plat-samsung/include/plat/sdhci.h
+++ b/arch/arm/plat-samsung/include/plat/sdhci.h
@@ -18,6 +18,8 @@
 #ifndef __PLAT_S3C_SDHCI_H
 #define __PLAT_S3C_SDHCI_H __FILE__
 
+#include <plat/devs.h>
+
 struct platform_device;
 struct mmc_host;
 struct mmc_card;
@@ -356,4 +358,30 @@ static inline void exynos4_default_sdhci3(void) { }
 
 #endif /* CONFIG_EXYNOS4_SETUP_SDHCI */
 
+static inline void s3c_sdhci_setname(int id, char *name)
+{
+        switch (id) {
+#ifdef CONFIG_S3C_DEV_HSMMC
+        case 0:
+                s3c_device_hsmmc0.name = name;
+                break;
+#endif
+#ifdef CONFIG_S3C_DEV_HSMMC1
+        case 1:
+                s3c_device_hsmmc1.name = name;
+                break;
+#endif
+#ifdef CONFIG_S3C_DEV_HSMMC2
+        case 2:
+                s3c_device_hsmmc2.name = name;
+                break;
+#endif
+#ifdef CONFIG_S3C_DEV_HSMMC3
+        case 3:
+                s3c_device_hsmmc3.name = name;
+                break;
+#endif
+        }
+}
+
 #endif /* __PLAT_S3C_SDHCI_H */
diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c
index 858748eaa144..bc683b8219b5 100644
--- a/arch/arm/vfp/vfpmodule.c
+++ b/arch/arm/vfp/vfpmodule.c
@@ -17,6 +17,8 @@
 #include <linux/sched.h>
 #include <linux/smp.h>
 #include <linux/init.h>
+#include <linux/uaccess.h>
+#include <linux/user.h>
 
 #include <asm/cp15.h>
 #include <asm/cputype.h>
@@ -529,6 +531,103 @@ void vfp_flush_hwstate(struct thread_info *thread)
 }
 
 /*
+ * Save the current VFP state into the provided structures and prepare
+ * for entry into a new function (signal handler).
+ */
+int vfp_preserve_user_clear_hwstate(struct user_vfp __user *ufp,
+                                    struct user_vfp_exc __user *ufp_exc)
+{
+        struct thread_info *thread = current_thread_info();
+        struct vfp_hard_struct *hwstate = &thread->vfpstate.hard;
+        int err = 0;
+
+        /* Ensure that the saved hwstate is up-to-date. */
+        vfp_sync_hwstate(thread);
+
+        /*
+         * Copy the floating point registers. There can be unused
+         * registers see asm/hwcap.h for details.
+         */
+        err |= __copy_to_user(&ufp->fpregs, &hwstate->fpregs,
+                              sizeof(hwstate->fpregs));
+        /*
+         * Copy the status and control register.
+         */
+        __put_user_error(hwstate->fpscr, &ufp->fpscr, err);
+
+        /*
+         * Copy the exception registers.
+         */
+        __put_user_error(hwstate->fpexc, &ufp_exc->fpexc, err);
+        __put_user_error(hwstate->fpinst, &ufp_exc->fpinst, err);
+        __put_user_error(hwstate->fpinst2, &ufp_exc->fpinst2, err);
+
+        if (err)
+                return -EFAULT;
+
+        /* Ensure that VFP is disabled. */
+        vfp_flush_hwstate(thread);
+
+        /*
+         * As per the PCS, clear the length and stride bits for function
+         * entry.
+         */
+        hwstate->fpscr &= ~(FPSCR_LENGTH_MASK | FPSCR_STRIDE_MASK);
+
+        /*
+         * Disable VFP in the hwstate so that we can detect if it gets
+         * used.
+         */
+        hwstate->fpexc &= ~FPEXC_EN;
+        return 0;
+}
+
+/* Sanitise and restore the current VFP state from the provided structures. */
+int vfp_restore_user_hwstate(struct user_vfp __user *ufp,
+                             struct user_vfp_exc __user *ufp_exc)
+{
+        struct thread_info *thread = current_thread_info();
+        struct vfp_hard_struct *hwstate = &thread->vfpstate.hard;
+        unsigned long fpexc;
+        int err = 0;
+
+        /*
+         * If VFP has been used, then disable it to avoid corrupting
+         * the new thread state.
+         */
+        if (hwstate->fpexc & FPEXC_EN)
+                vfp_flush_hwstate(thread);
+
+        /*
+         * Copy the floating point registers. There can be unused
+         * registers see asm/hwcap.h for details.
+         */
+        err |= __copy_from_user(&hwstate->fpregs, &ufp->fpregs,
+                                sizeof(hwstate->fpregs));
+        /*
+         * Copy the status and control register.
+         */
+        __get_user_error(hwstate->fpscr, &ufp->fpscr, err);
+
+        /*
+         * Sanitise and restore the exception registers.
+         */
+        __get_user_error(fpexc, &ufp_exc->fpexc, err);
+
+        /* Ensure the VFP is enabled. */
+        fpexc |= FPEXC_EN;
+
+        /* Ensure FPINST2 is invalid and the exception flag is cleared. */
+        fpexc &= ~(FPEXC_EX | FPEXC_FP2V);
+        hwstate->fpexc = fpexc;
+
+        __get_user_error(hwstate->fpinst, &ufp_exc->fpinst, err);
+        __get_user_error(hwstate->fpinst2, &ufp_exc->fpinst2, err);
+
+        return err ? -EFAULT : 0;
+}
+
+/*
  * VFP hardware can lose all context when a CPU goes offline.
  * As we will be running in SMP mode with CPU hotplug, we will save the
  * hardware state at every thread switch.  We clear our held state when
diff --git a/arch/avr32/include/asm/barrier.h b/arch/avr32/include/asm/barrier.h
index 808001c9cf8c..0961275373db 100644
--- a/arch/avr32/include/asm/barrier.h
+++ b/arch/avr32/include/asm/barrier.h
@@ -8,6 +8,8 @@
 #ifndef __ASM_AVR32_BARRIER_H
 #define __ASM_AVR32_BARRIER_H
 
+#define nop()                   asm volatile("nop")
+
 #define mb()                    asm volatile("" : : : "memory")
 #define rmb()                   mb()
 #define wmb()                   asm volatile("sync 0" : : : "memory")
diff --git a/arch/avr32/include/asm/special_insns.h b/arch/avr32/include/asm/special_insns.h
deleted file mode 100644
index f922218dfaa5..000000000000
--- a/arch/avr32/include/asm/special_insns.h
+++ /dev/null
@@ -1,13 +0,0 @@
-/*
- * Copyright (C) 2004-2006 Atmel Corporation
- *
- * 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.
- */
-#ifndef __ASM_AVR32_SPECIAL_INSNS_H
-#define __ASM_AVR32_SPECIAL_INSNS_H
-
-#define nop() asm volatile("nop")
-
-#endif /* __ASM_AVR32_SPECIAL_INSNS_H */
diff --git a/arch/avr32/mach-at32ap/include/mach/board.h b/arch/avr32/mach-at32ap/include/mach/board.h
index 71733866cb4f..70742ec997f8 100644
--- a/arch/avr32/mach-at32ap/include/mach/board.h
+++ b/arch/avr32/mach-at32ap/include/mach/board.h
@@ -7,7 +7,7 @@
 #include <linux/types.h>
 #include <linux/serial.h>
 #include <linux/platform_data/macb.h>
-#include <linux/platform_data/atmel_nand.h>
+#include <linux/platform_data/atmel.h>
 
 #define GPIO_PIN_NONE   (-1)
 
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index c1269a1085e1..373a6902d8fa 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -823,7 +823,7 @@ config CACHELINE_ALIGNED_L1
         bool "Locate cacheline_aligned data to L1 Data Memory"
         default y if !BF54x
         default n if BF54x
-        depends on !SMP && !BF531
+        depends on !SMP && !BF531 && !CRC32
         help
           If enabled, cacheline_aligned data is linked
           into L1 data memory. (less latency)
diff --git a/arch/blackfin/configs/BF527-EZKIT_defconfig b/arch/blackfin/configs/BF527-EZKIT_defconfig
index 9ccc18a6b4df..90b175323644 100644
--- a/arch/blackfin/configs/BF527-EZKIT_defconfig
+++ b/arch/blackfin/configs/BF527-EZKIT_defconfig
@@ -147,6 +147,7 @@ CONFIG_USB_OTG_BLACKLIST_HUB=y
 CONFIG_USB_MON=y
 CONFIG_USB_MUSB_HDRC=y
 CONFIG_USB_MUSB_BLACKFIN=y
+CONFIG_MUSB_PIO_ONLY=y
 CONFIG_USB_STORAGE=y
 CONFIG_USB_GADGET=y
 CONFIG_RTC_CLASS=y
diff --git a/arch/blackfin/include/asm/cmpxchg.h b/arch/blackfin/include/asm/cmpxchg.h
index ba2484f4cb2a..c05868cc61c1 100644
--- a/arch/blackfin/include/asm/cmpxchg.h
+++ b/arch/blackfin/include/asm/cmpxchg.h
@@ -122,7 +122,8 @@ static inline unsigned long __xchg(unsigned long x, volatile void *ptr,
                         (unsigned long)(n), sizeof(*(ptr))))
 #define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
 
-#include <asm-generic/cmpxchg.h>
+#define cmpxchg(ptr, o, n)      cmpxchg_local((ptr), (o), (n))
+#define cmpxchg64(ptr, o, n)    cmpxchg64_local((ptr), (o), (n))
 
 #endif /* !CONFIG_SMP */
 
diff --git a/arch/blackfin/include/asm/gpio.h b/arch/blackfin/include/asm/gpio.h
index 5a25856381ff..12d3571b5232 100644
--- a/arch/blackfin/include/asm/gpio.h
+++ b/arch/blackfin/include/asm/gpio.h
@@ -244,16 +244,26 @@ static inline int gpio_set_debounce(unsigned gpio, unsigned debounce)
         return -EINVAL;
 }
 
-static inline int gpio_get_value(unsigned gpio)
+static inline int __gpio_get_value(unsigned gpio)
 {
         return bfin_gpio_get_value(gpio);
 }
 
-static inline void gpio_set_value(unsigned gpio, int value)
+static inline void __gpio_set_value(unsigned gpio, int value)
 {
         return bfin_gpio_set_value(gpio, value);
 }
 
+static inline int gpio_get_value(unsigned gpio)
+{
+        return __gpio_get_value(gpio);
+}
+
+static inline void gpio_set_value(unsigned gpio, int value)
+{
+        return __gpio_set_value(gpio, value);
+}
+
 static inline int gpio_to_irq(unsigned gpio)
 {
         if (likely(gpio < MAX_BLACKFIN_GPIOS))
diff --git a/arch/blackfin/mach-bf538/boards/ezkit.c b/arch/blackfin/mach-bf538/boards/ezkit.c
index 1633a6f306c0..85038f54354d 100644
--- a/arch/blackfin/mach-bf538/boards/ezkit.c
+++ b/arch/blackfin/mach-bf538/boards/ezkit.c
@@ -38,7 +38,7 @@ static struct platform_device rtc_device = {
         .name = "rtc-bfin",
         .id   = -1,
 };
-#endif
+#endif  /* CONFIG_RTC_DRV_BFIN */
 
 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
 #ifdef CONFIG_SERIAL_BFIN_UART0
@@ -100,7 +100,7 @@ static struct platform_device bfin_uart0_device = {
                 .platform_data = &bfin_uart0_peripherals, /* Passed to driver */
         },
 };
-#endif
+#endif  /* CONFIG_SERIAL_BFIN_UART0 */
 #ifdef CONFIG_SERIAL_BFIN_UART1
 static struct resource bfin_uart1_resources[] = {
         {
@@ -148,7 +148,7 @@ static struct platform_device bfin_uart1_device = {
                 .platform_data = &bfin_uart1_peripherals, /* Passed to driver */
         },
 };
-#endif
+#endif  /* CONFIG_SERIAL_BFIN_UART1 */
 #ifdef CONFIG_SERIAL_BFIN_UART2
 static struct resource bfin_uart2_resources[] = {
         {
@@ -196,8 +196,8 @@ static struct platform_device bfin_uart2_device = {
                 .platform_data = &bfin_uart2_peripherals, /* Passed to driver */
         },
 };
-#endif
-#endif
+#endif  /* CONFIG_SERIAL_BFIN_UART2 */
+#endif  /* CONFIG_SERIAL_BFIN */
 
 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
 #ifdef CONFIG_BFIN_SIR0
@@ -224,7 +224,7 @@ static struct platform_device bfin_sir0_device = {
         .num_resources = ARRAY_SIZE(bfin_sir0_resources),
         .resource = bfin_sir0_resources,
 };
-#endif
+#endif  /* CONFIG_BFIN_SIR0 */
 #ifdef CONFIG_BFIN_SIR1
 static struct resource bfin_sir1_resources[] = {
         {
@@ -249,7 +249,7 @@ static struct platform_device bfin_sir1_device = {
         .num_resources = ARRAY_SIZE(bfin_sir1_resources),
         .resource = bfin_sir1_resources,
 };
-#endif
+#endif  /* CONFIG_BFIN_SIR1 */
 #ifdef CONFIG_BFIN_SIR2
 static struct resource bfin_sir2_resources[] = {
         {
@@ -274,8 +274,8 @@ static struct platform_device bfin_sir2_device = {
         .num_resources = ARRAY_SIZE(bfin_sir2_resources),
         .resource = bfin_sir2_resources,
 };
-#endif
-#endif
+#endif  /* CONFIG_BFIN_SIR2 */
+#endif  /* CONFIG_BFIN_SIR */
 
 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
@@ -311,7 +311,7 @@ static struct platform_device bfin_sport0_uart_device = {
                 .platform_data = &bfin_sport0_peripherals, /* Passed to driver */
         },
 };
-#endif
+#endif  /* CONFIG_SERIAL_BFIN_SPORT0_UART */
 #ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
 static struct resource bfin_sport1_uart_resources[] = {
         {
@@ -345,7 +345,7 @@ static struct platform_device bfin_sport1_uart_device = {
                 .platform_data = &bfin_sport1_peripherals, /* Passed to driver */
         },
 };
-#endif
+#endif  /* CONFIG_SERIAL_BFIN_SPORT1_UART */
 #ifdef CONFIG_SERIAL_BFIN_SPORT2_UART
 static struct resource bfin_sport2_uart_resources[] = {
         {
@@ -379,7 +379,7 @@ static struct platform_device bfin_sport2_uart_device = {
                 .platform_data = &bfin_sport2_peripherals, /* Passed to driver */
         },
 };
-#endif
+#endif  /* CONFIG_SERIAL_BFIN_SPORT2_UART */
 #ifdef CONFIG_SERIAL_BFIN_SPORT3_UART
 static struct resource bfin_sport3_uart_resources[] = {
         {
@@ -413,8 +413,8 @@ static struct platform_device bfin_sport3_uart_device = {
                 .platform_data = &bfin_sport3_peripherals, /* Passed to driver */
         },
 };
-#endif
-#endif
+#endif  /* CONFIG_SERIAL_BFIN_SPORT3_UART */
+#endif  /* CONFIG_SERIAL_BFIN_SPORT */
 
 #if defined(CONFIG_CAN_BFIN) || defined(CONFIG_CAN_BFIN_MODULE)
 static unsigned short bfin_can_peripherals[] = {
@@ -452,7 +452,7 @@ static struct platform_device bfin_can_device = {
                 .platform_data = &bfin_can_peripherals, /* Passed to driver */
         },
 };
-#endif
+#endif  /* CONFIG_CAN_BFIN */
 
 /*
  *  USB-LAN EzExtender board
@@ -488,7 +488,7 @@ static struct platform_device smc91x_device = {
                 .platform_data  = &smc91x_info,
         },
 };
-#endif
+#endif  /* CONFIG_SMC91X */
 
 #if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 /* all SPI peripherals info goes here */
@@ -518,7 +518,8 @@ static struct flash_platform_data bfin_spi_flash_data = {
 static struct bfin5xx_spi_chip spi_flash_chip_info = {
         .enable_dma = 0,         /* use dma transfer with this chip*/
 };
-#endif
+#endif  /* CONFIG_MTD_M25P80 */
+#endif  /* CONFIG_SPI_BFIN5XX */
 
 #if defined(CONFIG_TOUCHSCREEN_AD7879) || defined(CONFIG_TOUCHSCREEN_AD7879_MODULE)
 #include <linux/spi/ad7879.h>
@@ -535,7 +536,7 @@ static const struct ad7879_platform_data bfin_ad7879_ts_info = {
         .gpio_export            = 1,    /* Export GPIO to gpiolib */
         .gpio_base              = -1,   /* Dynamic allocation */
 };
-#endif
+#endif  /* CONFIG_TOUCHSCREEN_AD7879 */
 
 #if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
 #include <asm/bfin-lq035q1.h>
@@ -564,7 +565,7 @@ static struct platform_device bfin_lq035q1_device = {
                 .platform_data = &bfin_lq035q1_data,
         },
 };
-#endif
+#endif  /* CONFIG_FB_BFIN_LQ035Q1 */
 
 static struct spi_board_info bf538_spi_board_info[] __initdata = {
 #if defined(CONFIG_MTD_M25P80) \
@@ -579,7 +580,7 @@ static struct spi_board_info bf538_spi_board_info[] __initdata = {
                 .controller_data = &spi_flash_chip_info,
                 .mode = SPI_MODE_3,
         },
-#endif
+#endif  /* CONFIG_MTD_M25P80 */
 #if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) || defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE)
         {
                 .modalias = "ad7879",
@@ -590,7 +591,7 @@ static struct spi_board_info bf538_spi_board_info[] __initdata = {
                 .chip_select = 1,
                 .mode = SPI_CPHA | SPI_CPOL,
         },
-#endif
+#endif  /* CONFIG_TOUCHSCREEN_AD7879_SPI */
 #if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
         {
                 .modalias = "bfin-lq035q1-spi",
@@ -599,7 +600,7 @@ static struct spi_board_info bf538_spi_board_info[] __initdata = {
                 .chip_select = 2,
                 .mode = SPI_CPHA | SPI_CPOL,
         },
-#endif
+#endif  /* CONFIG_FB_BFIN_LQ035Q1 */
 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
         {
                 .modalias = "spidev",
@@ -607,7 +608,7 @@ static struct spi_board_info bf538_spi_board_info[] __initdata = {
                 .bus_num = 0,
                 .chip_select = 1,
         },
-#endif
+#endif  /* CONFIG_SPI_SPIDEV */
 };
 
 /* SPI (0) */
@@ -716,8 +717,6 @@ static struct platform_device bf538_spi_master2 = {
                 },
 };
 
-#endif  /* spi master and devices */
-
 #if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
 static struct resource bfin_twi0_resource[] = {
         [0] = {
@@ -759,8 +758,8 @@ static struct platform_device i2c_bfin_twi1_device = {
         .num_resources = ARRAY_SIZE(bfin_twi1_resource),
         .resource = bfin_twi1_resource,
 };
-#endif
-#endif
+#endif  /* CONFIG_BF542 */
+#endif  /* CONFIG_I2C_BLACKFIN_TWI */
 
 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 #include <linux/gpio_keys.h>
diff --git a/arch/c6x/include/asm/irq.h b/arch/c6x/include/asm/irq.h
index f13b78d5e1ca..ab4577f93d96 100644
--- a/arch/c6x/include/asm/irq.h
+++ b/arch/c6x/include/asm/irq.h
@@ -42,10 +42,6 @@
 /* This number is used when no interrupt has been assigned */
 #define NO_IRQ          0
 
-struct irq_data;
-extern irq_hw_number_t irqd_to_hwirq(struct irq_data *d);
-extern irq_hw_number_t virq_to_hw(unsigned int virq);
-
 extern void __init init_pic_c64xplus(void);
 
 extern void init_IRQ(void);
diff --git a/arch/c6x/kernel/irq.c b/arch/c6x/kernel/irq.c
index 65b8ddf54b44..c90fb5e82ad7 100644
--- a/arch/c6x/kernel/irq.c
+++ b/arch/c6x/kernel/irq.c
@@ -130,16 +130,3 @@ int arch_show_interrupts(struct seq_file *p, int prec)
         seq_printf(p, "%*s: %10lu\n", prec, "Err", irq_err_count);
         return 0;
 }
-
-irq_hw_number_t irqd_to_hwirq(struct irq_data *d)
-{
-        return d->hwirq;
-}
-EXPORT_SYMBOL_GPL(irqd_to_hwirq);
-
-irq_hw_number_t virq_to_hw(unsigned int virq)
-{
-        struct irq_data *irq_data = irq_get_irq_data(virq);
-        return WARN_ON(!irq_data) ? 0 : irq_data->hwirq;
-}
-EXPORT_SYMBOL_GPL(virq_to_hw);
diff --git a/arch/c6x/kernel/signal.c b/arch/c6x/kernel/signal.c
index 304f675826e9..3b5a05099989 100644
--- a/arch/c6x/kernel/signal.c
+++ b/arch/c6x/kernel/signal.c
@@ -85,10 +85,7 @@ asmlinkage int do_rt_sigreturn(struct pt_regs *regs)
                 goto badframe;
 
         sigdelsetmask(&set, ~_BLOCKABLE);
-        spin_lock_irq(&current->sighand->siglock);
-        current->blocked = set;
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
+        set_current_blocked(&set);
 
         if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
                 goto badframe;
@@ -279,15 +276,8 @@ static int handle_signal(int sig,
 
         /* Set up the stack frame */
         ret = setup_rt_frame(sig, ka, info, oldset, regs);
-        if (ret == 0) {
-                spin_lock_irq(&current->sighand->siglock);
-                sigorsets(&current->blocked, &current->blocked,
-                          &ka->sa.sa_mask);
-                if (!(ka->sa.sa_flags & SA_NODEFER))
-                        sigaddset(&current->blocked, sig);
-                recalc_sigpending();
-                spin_unlock_irq(&current->sighand->siglock);
-        }
+        if (ret == 0)
+                block_sigmask(ka, sig);
 
         return ret;
 }
diff --git a/arch/frv/mb93090-mb00/pci-dma.c b/arch/frv/mb93090-mb00/pci-dma.c
index 41098a3803a2..4f8d8bcdc7de 100644
--- a/arch/frv/mb93090-mb00/pci-dma.c
+++ b/arch/frv/mb93090-mb00/pci-dma.c
@@ -13,6 +13,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/list.h>
 #include <linux/pci.h>
+#include <linux/export.h>
 #include <linux/highmem.h>
 #include <linux/scatterlist.h>
 #include <asm/io.h>
diff --git a/arch/hexagon/include/asm/dma-mapping.h b/arch/hexagon/include/asm/dma-mapping.h
index 448b224ba4ef..233ed3d2d25e 100644
--- a/arch/hexagon/include/asm/dma-mapping.h
+++ b/arch/hexagon/include/asm/dma-mapping.h
@@ -71,29 +71,35 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
         return (dma_addr == bad_dma_address);
 }
 
-static inline void *dma_alloc_coherent(struct device *dev, size_t size,
-                                       dma_addr_t *dma_handle, gfp_t flag)
+#define dma_alloc_coherent(d,s,h,f)     dma_alloc_attrs(d,s,h,f,NULL)
+
+static inline void *dma_alloc_attrs(struct device *dev, size_t size,
+                                    dma_addr_t *dma_handle, gfp_t flag,
+                                    struct dma_attrs *attrs)
 {
         void *ret;
         struct dma_map_ops *ops = get_dma_ops(dev);
 
         BUG_ON(!dma_ops);
 
-        ret = ops->alloc_coherent(dev, size, dma_handle, flag);
+        ret = ops->alloc(dev, size, dma_handle, flag, attrs);
 
         debug_dma_alloc_coherent(dev, size, *dma_handle, ret);
 
         return ret;
 }
 
-static inline void dma_free_coherent(struct device *dev, size_t size,
-                                     void *cpu_addr, dma_addr_t dma_handle)
+#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL)
+
+static inline void dma_free_attrs(struct device *dev, size_t size,
+                                  void *cpu_addr, dma_addr_t dma_handle,
+                                  struct dma_attrs *attrs)
 {
         struct dma_map_ops *dma_ops = get_dma_ops(dev);
 
         BUG_ON(!dma_ops);
 
-        dma_ops->free_coherent(dev, size, cpu_addr, dma_handle);
+        dma_ops->free(dev, size, cpu_addr, dma_handle, attrs);
 
         debug_dma_free_coherent(dev, size, cpu_addr, dma_handle);
 }
diff --git a/arch/hexagon/kernel/dma.c b/arch/hexagon/kernel/dma.c
index e711ace62fdf..0f2367cc5493 100644
--- a/arch/hexagon/kernel/dma.c
+++ b/arch/hexagon/kernel/dma.c
@@ -22,6 +22,7 @@
 #include <linux/bootmem.h>
 #include <linux/genalloc.h>
 #include <asm/dma-mapping.h>
+#include <linux/module.h>
 
 struct dma_map_ops *dma_ops;
 EXPORT_SYMBOL(dma_ops);
@@ -54,7 +55,8 @@ static struct gen_pool *coherent_pool;
 /* Allocates from a pool of uncached memory that was reserved at boot time */
 
 void *hexagon_dma_alloc_coherent(struct device *dev, size_t size,
-                                 dma_addr_t *dma_addr, gfp_t flag)
+                                 dma_addr_t *dma_addr, gfp_t flag,
+                                 struct dma_attrs *attrs)
 {
         void *ret;
 
@@ -81,7 +83,7 @@ void *hexagon_dma_alloc_coherent(struct device *dev, size_t size,
 }
 
 static void hexagon_free_coherent(struct device *dev, size_t size, void *vaddr,
-                                  dma_addr_t dma_addr)
+                                  dma_addr_t dma_addr, struct dma_attrs *attrs)
 {
         gen_pool_free(coherent_pool, (unsigned long) vaddr, size);
 }
@@ -202,8 +204,8 @@ static void hexagon_sync_single_for_device(struct device *dev,
 }
 
 struct dma_map_ops hexagon_dma_ops = {
-        .alloc_coherent = hexagon_dma_alloc_coherent,
-        .free_coherent  = hexagon_free_coherent,
+        .alloc          = hexagon_dma_alloc_coherent,
+        .free           = hexagon_free_coherent,
         .map_sg         = hexagon_map_sg,
         .map_page       = hexagon_map_page,
         .sync_single_for_cpu = hexagon_sync_single_for_cpu,
diff --git a/arch/hexagon/kernel/process.c b/arch/hexagon/kernel/process.c
index 18c4f0b0f4ba..ff02821bfb7e 100644
--- a/arch/hexagon/kernel/process.c
+++ b/arch/hexagon/kernel/process.c
@@ -1,7 +1,7 @@
 /*
  * Process creation support for Hexagon
  *
- * Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved.
+ * Copyright (c) 2010-2012, Code Aurora Forum. 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 version 2 and
@@ -88,7 +88,7 @@ void (*idle_sleep)(void) = default_idle;
 void cpu_idle(void)
 {
         while (1) {
-                tick_nohz_stop_sched_tick(1);
+                tick_nohz_idle_enter();
                 local_irq_disable();
                 while (!need_resched()) {
                         idle_sleep();
@@ -97,7 +97,7 @@ void cpu_idle(void)
                         local_irq_disable();
                 }
                 local_irq_enable();
-                tick_nohz_restart_sched_tick();
+                tick_nohz_idle_exit();
                 schedule();
         }
 }
diff --git a/arch/hexagon/kernel/ptrace.c b/arch/hexagon/kernel/ptrace.c
index 32342de1a79c..96c3b2c4dbad 100644
--- a/arch/hexagon/kernel/ptrace.c
+++ b/arch/hexagon/kernel/ptrace.c
@@ -28,6 +28,7 @@
 #include <linux/ptrace.h>
 #include <linux/regset.h>
 #include <linux/user.h>
+#include <linux/elf.h>
 
 #include <asm/user.h>
 
diff --git a/arch/hexagon/kernel/smp.c b/arch/hexagon/kernel/smp.c
index 15d1fd22bbc5..1298141874a3 100644
--- a/arch/hexagon/kernel/smp.c
+++ b/arch/hexagon/kernel/smp.c
@@ -1,7 +1,7 @@
 /*
  * SMP support for Hexagon
  *
- * Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved.
+ * Copyright (c) 2010-2012, Code Aurora Forum. 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 version 2 and
@@ -28,6 +28,7 @@
 #include <linux/sched.h>
 #include <linux/smp.h>
 #include <linux/spinlock.h>
+#include <linux/cpu.h>
 
 #include <asm/time.h>    /*  timer_interrupt  */
 #include <asm/hexagon_vm.h>
@@ -35,7 +36,7 @@
 #define BASE_IPI_IRQ 26
 
 /*
- * cpu_possible_map needs to be filled out prior to setup_per_cpu_areas
+ * cpu_possible_mask needs to be filled out prior to setup_per_cpu_areas
  * (which is prior to any of our smp_prepare_cpu crap), in order to set
  * up the...  per_cpu areas.
  */
@@ -177,7 +178,12 @@ void __cpuinit start_secondary(void)
 
         printk(KERN_INFO "%s cpu %d\n", __func__, current_thread_info()->cpu);
 
+        notify_cpu_starting(cpu);
+
+        ipi_call_lock();
         set_cpu_online(cpu, true);
+        ipi_call_unlock();
+
         local_irq_enable();
 
         cpu_idle();
@@ -208,7 +214,7 @@ int __cpuinit __cpu_up(unsigned int cpu)
         stack_start =  ((void *) thread) + THREAD_SIZE;
         __vmstart(start_secondary, stack_start);
 
-        while (!cpu_isset(cpu, cpu_online_map))
+        while (!cpu_online(cpu))
                 barrier();
 
         return 0;
@@ -229,7 +235,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
 
         /*  Right now, let's just fake it. */
         for (i = 0; i < max_cpus; i++)
-                cpu_set(i, cpu_present_map);
+                set_cpu_present(i, true);
 
         /*  Also need to register the interrupts for IPI  */
         if (max_cpus > 1)
@@ -269,5 +275,5 @@ void smp_start_cpus(void)
         int i;
 
         for (i = 0; i < NR_CPUS; i++)
-                cpu_set(i, cpu_possible_map);
+                set_cpu_possible(i, true);
 }
diff --git a/arch/hexagon/kernel/time.c b/arch/hexagon/kernel/time.c
index 6bee15c9c113..5d9b33b67935 100644
--- a/arch/hexagon/kernel/time.c
+++ b/arch/hexagon/kernel/time.c
@@ -28,6 +28,7 @@
 #include <linux/of.h>
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
+#include <linux/module.h>
 
 #include <asm/timer-regs.h>
 #include <asm/hexagon_vm.h>
diff --git a/arch/hexagon/kernel/vdso.c b/arch/hexagon/kernel/vdso.c
index f212a453b527..5d39f42f7085 100644
--- a/arch/hexagon/kernel/vdso.c
+++ b/arch/hexagon/kernel/vdso.c
@@ -21,6 +21,7 @@
 #include <linux/err.h>
 #include <linux/mm.h>
 #include <linux/vmalloc.h>
+#include <linux/binfmts.h>
 
 #include <asm/vdso.h>
 
diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c
index f6ea3a3b4a84..bcda5b2d121a 100644
--- a/arch/ia64/hp/common/sba_iommu.c
+++ b/arch/ia64/hp/common/sba_iommu.c
@@ -1129,7 +1129,8 @@ void sba_unmap_single_attrs(struct device *dev, dma_addr_t iova, size_t size,
  * See Documentation/DMA-API-HOWTO.txt
  */
 static void *
-sba_alloc_coherent (struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flags)
+sba_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
+                   gfp_t flags, struct dma_attrs *attrs)
 {
         struct ioc *ioc;
         void *addr;
@@ -1191,8 +1192,8 @@ sba_alloc_coherent (struct device *dev, size_t size, dma_addr_t *dma_handle, gfp
  *
  * See Documentation/DMA-API-HOWTO.txt
  */
-static void sba_free_coherent (struct device *dev, size_t size, void *vaddr,
-                               dma_addr_t dma_handle)
+static void sba_free_coherent(struct device *dev, size_t size, void *vaddr,
+                              dma_addr_t dma_handle, struct dma_attrs *attrs)
 {
         sba_unmap_single_attrs(dev, dma_handle, size, 0, NULL);
         free_pages((unsigned long) vaddr, get_order(size));
@@ -2212,8 +2213,8 @@ sba_page_override(char *str)
 __setup("sbapagesize=",sba_page_override);
 
 struct dma_map_ops sba_dma_ops = {
-        .alloc_coherent         = sba_alloc_coherent,
-        .free_coherent          = sba_free_coherent,
+        .alloc                  = sba_alloc_coherent,
+        .free                   = sba_free_coherent,
         .map_page               = sba_map_page,
         .unmap_page             = sba_unmap_page,
         .map_sg                 = sba_map_sg_attrs,
diff --git a/arch/ia64/include/asm/cmpxchg.h b/arch/ia64/include/asm/cmpxchg.h
index 4c96187e2049..4f37dbbb8640 100644
--- a/arch/ia64/include/asm/cmpxchg.h
+++ b/arch/ia64/include/asm/cmpxchg.h
@@ -1 +1,147 @@
-#include <asm/intrinsics.h>
+#ifndef _ASM_IA64_CMPXCHG_H
+#define _ASM_IA64_CMPXCHG_H
+
+/*
+ * Compare/Exchange, forked from asm/intrinsics.h
+ * which was:
+ *
+ *      Copyright (C) 2002-2003 Hewlett-Packard Co
+ *      David Mosberger-Tang <davidm@hpl.hp.com>
+ */
+
+#ifndef __ASSEMBLY__
+
+#include <linux/types.h>
+/* include compiler specific intrinsics */
+#include <asm/ia64regs.h>
+#ifdef __INTEL_COMPILER
+# include <asm/intel_intrin.h>
+#else
+# include <asm/gcc_intrin.h>
+#endif
+
+/*
+ * This function doesn't exist, so you'll get a linker error if
+ * something tries to do an invalid xchg().
+ */
+extern void ia64_xchg_called_with_bad_pointer(void);
+
+#define __xchg(x, ptr, size)                                            \
+({                                                                      \
+        unsigned long __xchg_result;                                    \
+                                                                        \
+        switch (size) {                                                 \
+        case 1:                                                         \
+                __xchg_result = ia64_xchg1((__u8 *)ptr, x);             \
+                break;                                                  \
+                                                                        \
+        case 2:                                                         \
+                __xchg_result = ia64_xchg2((__u16 *)ptr, x);            \
+                break;                                                  \
+                                                                        \
+        case 4:                                                         \
+                __xchg_result = ia64_xchg4((__u32 *)ptr, x);            \
+                break;                                                  \
+                                                                        \
+        case 8:                                                         \
+                __xchg_result = ia64_xchg8((__u64 *)ptr, x);            \
+                break;                                                  \
+        default:                                                        \
+                ia64_xchg_called_with_bad_pointer();                    \
+        }                                                               \
+        __xchg_result;                                                  \
+})
+
+#define xchg(ptr, x)                                                    \
+((__typeof__(*(ptr))) __xchg((unsigned long) (x), (ptr), sizeof(*(ptr))))
+
+/*
+ * Atomic compare and exchange.  Compare OLD with MEM, if identical,
+ * store NEW in MEM.  Return the initial value in MEM.  Success is
+ * indicated by comparing RETURN with OLD.
+ */
+
+#define __HAVE_ARCH_CMPXCHG 1
+
+/*
+ * This function doesn't exist, so you'll get a linker error
+ * if something tries to do an invalid cmpxchg().
+ */
+extern long ia64_cmpxchg_called_with_bad_pointer(void);
+
+#define ia64_cmpxchg(sem, ptr, old, new, size)                          \
+({                                                                      \
+        __u64 _o_, _r_;                                                 \
+                                                                        \
+        switch (size) {                                                 \
+        case 1:                                                         \
+                _o_ = (__u8) (long) (old);                              \
+                break;                                                  \
+        case 2:                                                         \
+                _o_ = (__u16) (long) (old);                             \
+                break;                                                  \
+        case 4:                                                         \
+                _o_ = (__u32) (long) (old);                             \
+                break;                                                  \
+        case 8:                                                         \
+                _o_ = (__u64) (long) (old);                             \
+                break;                                                  \
+        default:                                                        \
+                break;                                                  \
+        }                                                               \
+        switch (size) {                                                 \
+        case 1:                                                         \
+                _r_ = ia64_cmpxchg1_##sem((__u8 *) ptr, new, _o_);      \
+                break;                                                  \
+                                                                        \
+        case 2:                                                         \
+                _r_ = ia64_cmpxchg2_##sem((__u16 *) ptr, new, _o_);     \
+                break;                                                  \
+                                                                        \
+        case 4:                                                         \
+                _r_ = ia64_cmpxchg4_##sem((__u32 *) ptr, new, _o_);     \
+                break;                                                  \
+                                                                        \
+        case 8:                                                         \
+                _r_ = ia64_cmpxchg8_##sem((__u64 *) ptr, new, _o_);     \
+                break;                                                  \
+                                                                        \
+        default:                                                        \
+                _r_ = ia64_cmpxchg_called_with_bad_pointer();           \
+                break;                                                  \
+        }                                                               \
+        (__typeof__(old)) _r_;                                          \
+})
+
+#define cmpxchg_acq(ptr, o, n)  \
+        ia64_cmpxchg(acq, (ptr), (o), (n), sizeof(*(ptr)))
+#define cmpxchg_rel(ptr, o, n)  \
+        ia64_cmpxchg(rel, (ptr), (o), (n), sizeof(*(ptr)))
+
+/* for compatibility with other platforms: */
+#define cmpxchg(ptr, o, n)      cmpxchg_acq((ptr), (o), (n))
+#define cmpxchg64(ptr, o, n)    cmpxchg_acq((ptr), (o), (n))
+
+#define cmpxchg_local           cmpxchg
+#define cmpxchg64_local         cmpxchg64
+
+#ifdef CONFIG_IA64_DEBUG_CMPXCHG
+# define CMPXCHG_BUGCHECK_DECL  int _cmpxchg_bugcheck_count = 128;
+# define CMPXCHG_BUGCHECK(v)                                            \
+do {                                                                    \
+        if (_cmpxchg_bugcheck_count-- <= 0) {                           \
+                void *ip;                                               \
+                extern int printk(const char *fmt, ...);                \
+                ip = (void *) ia64_getreg(_IA64_REG_IP);                \
+                printk("CMPXCHG_BUGCHECK: stuck at %p on word %p\n", ip, (v));\
+                break;                                                  \
+        }                                                               \
+} while (0)
+#else /* !CONFIG_IA64_DEBUG_CMPXCHG */
+# define CMPXCHG_BUGCHECK_DECL
+# define CMPXCHG_BUGCHECK(v)
+#endif /* !CONFIG_IA64_DEBUG_CMPXCHG */
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* _ASM_IA64_CMPXCHG_H */
diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h
index 4336d080b241..4f5e8148440d 100644
--- a/arch/ia64/include/asm/dma-mapping.h
+++ b/arch/ia64/include/asm/dma-mapping.h
@@ -23,23 +23,29 @@ extern void machvec_dma_sync_single(struct device *, dma_addr_t, size_t,
 extern void machvec_dma_sync_sg(struct device *, struct scatterlist *, int,
                                 enum dma_data_direction);
 
-static inline void *dma_alloc_coherent(struct device *dev, size_t size,
-                                       dma_addr_t *daddr, gfp_t gfp)
+#define dma_alloc_coherent(d,s,h,f)     dma_alloc_attrs(d,s,h,f,NULL)
+
+static inline void *dma_alloc_attrs(struct device *dev, size_t size,
+                                    dma_addr_t *daddr, gfp_t gfp,
+                                    struct dma_attrs *attrs)
 {
         struct dma_map_ops *ops = platform_dma_get_ops(dev);
         void *caddr;
 
-        caddr = ops->alloc_coherent(dev, size, daddr, gfp);
+        caddr = ops->alloc(dev, size, daddr, gfp, attrs);
         debug_dma_alloc_coherent(dev, size, *daddr, caddr);
         return caddr;
 }
 
-static inline void dma_free_coherent(struct device *dev, size_t size,
-                                     void *caddr, dma_addr_t daddr)
+#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL)
+
+static inline void dma_free_attrs(struct device *dev, size_t size,
+                                  void *caddr, dma_addr_t daddr,
+                                  struct dma_attrs *attrs)
 {
         struct dma_map_ops *ops = platform_dma_get_ops(dev);
         debug_dma_free_coherent(dev, size, caddr, daddr);
-        ops->free_coherent(dev, size, caddr, daddr);
+        ops->free(dev, size, caddr, daddr, attrs);
 }
 
 #define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
diff --git a/arch/ia64/include/asm/futex.h b/arch/ia64/include/asm/futex.h
index 0ab82cc2dc8f..d2bf1fd5e44f 100644
--- a/arch/ia64/include/asm/futex.h
+++ b/arch/ia64/include/asm/futex.h
@@ -106,15 +106,16 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
                 return -EFAULT;
 
         {
-                register unsigned long r8 __asm ("r8") = 0;
+                register unsigned long r8 __asm ("r8");
                 unsigned long prev;
                 __asm__ __volatile__(
                         "       mf;;                                    \n"
-                        "       mov ar.ccv=%3;;                         \n"
-                        "[1:]   cmpxchg4.acq %0=[%1],%2,ar.ccv          \n"
+                        "       mov %0=r0                               \n"
+                        "       mov ar.ccv=%4;;                         \n"
+                        "[1:]   cmpxchg4.acq %1=[%2],%3,ar.ccv          \n"
                         "       .xdata4 \"__ex_table\", 1b-., 2f-.      \n"
                         "[2:]"
-                        : "=r" (prev)
+                        : "=r" (r8), "=r" (prev)
                         : "r" (uaddr), "r" (newval),
                           "rO" ((long) (unsigned) oldval)
                         : "memory");
diff --git a/arch/ia64/include/asm/intrinsics.h b/arch/ia64/include/asm/intrinsics.h
index e4076b511829..d129e367e764 100644
--- a/arch/ia64/include/asm/intrinsics.h
+++ b/arch/ia64/include/asm/intrinsics.h
@@ -18,6 +18,7 @@
 #else
 # include <asm/gcc_intrin.h>
 #endif
+#include <asm/cmpxchg.h>
 
 #define ia64_native_get_psr_i() (ia64_native_getreg(_IA64_REG_PSR) & IA64_PSR_I)
 
@@ -81,119 +82,6 @@ extern unsigned long __bad_increment_for_ia64_fetch_and_add (void);
 
 #define ia64_fetch_and_add(i,v) (ia64_fetchadd(i, v, rel) + (i)) /* return new value */
 
-/*
- * This function doesn't exist, so you'll get a linker error if
- * something tries to do an invalid xchg().
- */
-extern void ia64_xchg_called_with_bad_pointer (void);
-
-#define __xchg(x,ptr,size)                                              \
-({                                                                      \
-        unsigned long __xchg_result;                                    \
-                                                                        \
-        switch (size) {                                                 \
-              case 1:                                                   \
-                __xchg_result = ia64_xchg1((__u8 *)ptr, x);             \
-                break;                                                  \
-                                                                        \
-              case 2:                                                   \
-                __xchg_result = ia64_xchg2((__u16 *)ptr, x);            \
-                break;                                                  \
-                                                                        \
-              case 4:                                                   \
-                __xchg_result = ia64_xchg4((__u32 *)ptr, x);            \
-                break;                                                  \
-                                                                        \
-              case 8:                                                   \
-                __xchg_result = ia64_xchg8((__u64 *)ptr, x);            \
-                break;                                                  \
-              default:                                                  \
-                ia64_xchg_called_with_bad_pointer();                    \
-        }                                                               \
-        __xchg_result;                                                  \
-})
-
-#define xchg(ptr,x)                                                          \
-  ((__typeof__(*(ptr))) __xchg ((unsigned long) (x), (ptr), sizeof(*(ptr))))
-
-/*
- * Atomic compare and exchange.  Compare OLD with MEM, if identical,
- * store NEW in MEM.  Return the initial value in MEM.  Success is
- * indicated by comparing RETURN with OLD.
- */
-
-#define __HAVE_ARCH_CMPXCHG 1
-
-/*
- * This function doesn't exist, so you'll get a linker error
- * if something tries to do an invalid cmpxchg().
- */
-extern long ia64_cmpxchg_called_with_bad_pointer (void);
-
-#define ia64_cmpxchg(sem,ptr,old,new,size)                                              \
-({                                                                                      \
-        __u64 _o_, _r_;                                                                 \
-                                                                                        \
-        switch (size) {                                                                 \
-              case 1: _o_ = (__u8 ) (long) (old); break;                                \
-              case 2: _o_ = (__u16) (long) (old); break;                                \
-              case 4: _o_ = (__u32) (long) (old); break;                                \
-              case 8: _o_ = (__u64) (long) (old); break;                                \
-              default: break;                                                           \
-        }                                                                               \
-        switch (size) {                                                                 \
-              case 1:                                                                   \
-                _r_ = ia64_cmpxchg1_##sem((__u8 *) ptr, new, _o_);                      \
-                break;                                                                  \
-                                                                                        \
-              case 2:                                                                   \
-               _r_ = ia64_cmpxchg2_##sem((__u16 *) ptr, new, _o_);                      \
-                break;                                                                  \
-                                                                                        \
-              case 4:                                                                   \
-                _r_ = ia64_cmpxchg4_##sem((__u32 *) ptr, new, _o_);                     \
-                break;                                                                  \
-                                                                                        \
-              case 8:                                                                   \
-                _r_ = ia64_cmpxchg8_##sem((__u64 *) ptr, new, _o_);                     \
-                break;                                                                  \
-                                                                                        \
-              default:                                                                  \
-                _r_ = ia64_cmpxchg_called_with_bad_pointer();                           \
-                break;                                                                  \
-        }                                                                               \
-        (__typeof__(old)) _r_;                                                          \
-})
-
-#define cmpxchg_acq(ptr, o, n)  \
-        ia64_cmpxchg(acq, (ptr), (o), (n), sizeof(*(ptr)))
-#define cmpxchg_rel(ptr, o, n)  \
-        ia64_cmpxchg(rel, (ptr), (o), (n), sizeof(*(ptr)))
-
-/* for compatibility with other platforms: */
-#define cmpxchg(ptr, o, n)      cmpxchg_acq((ptr), (o), (n))
-#define cmpxchg64(ptr, o, n)    cmpxchg_acq((ptr), (o), (n))
-
-#define cmpxchg_local           cmpxchg
-#define cmpxchg64_local         cmpxchg64
-
-#ifdef CONFIG_IA64_DEBUG_CMPXCHG
-# define CMPXCHG_BUGCHECK_DECL  int _cmpxchg_bugcheck_count = 128;
-# define CMPXCHG_BUGCHECK(v)                                                    \
-  do {                                                                          \
-        if (_cmpxchg_bugcheck_count-- <= 0) {                                   \
-                void *ip;                                                       \
-                extern int printk(const char *fmt, ...);                        \
-                ip = (void *) ia64_getreg(_IA64_REG_IP);                        \
-                printk("CMPXCHG_BUGCHECK: stuck at %p on word %p\n", ip, (v));  \
-                break;                                                          \
-        }                                                                       \
-  } while (0)
-#else /* !CONFIG_IA64_DEBUG_CMPXCHG */
-# define CMPXCHG_BUGCHECK_DECL
-# define CMPXCHG_BUGCHECK(v)
-#endif /* !CONFIG_IA64_DEBUG_CMPXCHG */
-
 #endif
 
 #ifdef __KERNEL__
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index ac795d311f44..6f38b6120d96 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -839,7 +839,7 @@ static __init int setup_additional_cpus(char *s)
 early_param("additional_cpus", setup_additional_cpus);
 
 /*
- * cpu_possible_map should be static, it cannot change as CPUs
+ * cpu_possible_mask should be static, it cannot change as CPUs
  * are onlined, or offlined. The reason is per-cpu data-structures
  * are allocated by some modules at init time, and dont expect to
  * do this dynamically on cpu arrival/departure.
diff --git a/arch/ia64/kernel/pci-swiotlb.c b/arch/ia64/kernel/pci-swiotlb.c
index d9485d952ed0..939260aeac98 100644
--- a/arch/ia64/kernel/pci-swiotlb.c
+++ b/arch/ia64/kernel/pci-swiotlb.c
@@ -15,16 +15,24 @@ int swiotlb __read_mostly;
 EXPORT_SYMBOL(swiotlb);
 
 static void *ia64_swiotlb_alloc_coherent(struct device *dev, size_t size,
-                                         dma_addr_t *dma_handle, gfp_t gfp)
+                                         dma_addr_t *dma_handle, gfp_t gfp,
+                                         struct dma_attrs *attrs)
 {
         if (dev->coherent_dma_mask != DMA_BIT_MASK(64))
                 gfp |= GFP_DMA;
         return swiotlb_alloc_coherent(dev, size, dma_handle, gfp);
 }
 
+static void ia64_swiotlb_free_coherent(struct device *dev, size_t size,
+                                       void *vaddr, dma_addr_t dma_addr,
+                                       struct dma_attrs *attrs)
+{
+        swiotlb_free_coherent(dev, size, vaddr, dma_addr);
+}
+
 struct dma_map_ops swiotlb_dma_ops = {
-        .alloc_coherent = ia64_swiotlb_alloc_coherent,
-        .free_coherent = swiotlb_free_coherent,
+        .alloc = ia64_swiotlb_alloc_coherent,
+        .free = ia64_swiotlb_free_coherent,
         .map_page = swiotlb_map_page,
         .unmap_page = swiotlb_unmap_page,
         .map_sg = swiotlb_map_sg_attrs,
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index 9d0fd7d5bb82..f00ba025375d 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -604,12 +604,6 @@ pfm_unprotect_ctx_ctxsw(pfm_context_t *x, unsigned long f)
         spin_unlock(&(x)->ctx_lock);
 }
 
-static inline unsigned int
-pfm_do_munmap(struct mm_struct *mm, unsigned long addr, size_t len, int acct)
-{
-        return do_munmap(mm, addr, len);
-}
-
 static inline unsigned long 
 pfm_get_unmapped_area(struct file *file, unsigned long addr, unsigned long len, unsigned long pgoff, unsigned long flags, unsigned long exec)
 {
@@ -1458,8 +1452,9 @@ pfm_unreserve_session(pfm_context_t *ctx, int is_syswide, unsigned int cpu)
  * a PROTECT_CTX() section.
  */
 static int
-pfm_remove_smpl_mapping(struct task_struct *task, void *vaddr, unsigned long size)
+pfm_remove_smpl_mapping(void *vaddr, unsigned long size)
 {
+        struct task_struct *task = current;
         int r;
 
         /* sanity checks */
@@ -1473,13 +1468,8 @@ pfm_remove_smpl_mapping(struct task_struct *task, void *vaddr, unsigned long siz
         /*
          * does the actual unmapping
          */
-        down_write(&task->mm->mmap_sem);
+        r = vm_munmap((unsigned long)vaddr, size);
 
-        DPRINT(("down_write done smpl_vaddr=%p size=%lu\n", vaddr, size));
-
-        r = pfm_do_munmap(task->mm, (unsigned long)vaddr, size, 0);
-
-        up_write(&task->mm->mmap_sem);
         if (r !=0) {
                 printk(KERN_ERR "perfmon: [%d] unable to unmap sampling buffer @%p size=%lu\n", task_pid_nr(task), vaddr, size);
         }
@@ -1945,7 +1935,7 @@ pfm_flush(struct file *filp, fl_owner_t id)
          * because some VM function reenables interrupts.
          *
          */
-        if (smpl_buf_vaddr) pfm_remove_smpl_mapping(current, smpl_buf_vaddr, smpl_buf_size);
+        if (smpl_buf_vaddr) pfm_remove_smpl_mapping(smpl_buf_vaddr, smpl_buf_size);
 
         return 0;
 }
diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c
index f5104b7c52cd..463fb3bbe11e 100644
--- a/arch/ia64/kvm/kvm-ia64.c
+++ b/arch/ia64/kvm/kvm-ia64.c
@@ -1174,7 +1174,7 @@ out:
 
 bool kvm_vcpu_compatible(struct kvm_vcpu *vcpu)
 {
-        return irqchip_in_kernel(vcpu->kcm) == (vcpu->arch.apic != NULL);
+        return irqchip_in_kernel(vcpu->kvm) == (vcpu->arch.apic != NULL);
 }
 
 int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
diff --git a/arch/ia64/sn/pci/pci_dma.c b/arch/ia64/sn/pci/pci_dma.c
index a9d310de57da..3290d6e00c31 100644
--- a/arch/ia64/sn/pci/pci_dma.c
+++ b/arch/ia64/sn/pci/pci_dma.c
@@ -76,7 +76,8 @@ EXPORT_SYMBOL(sn_dma_set_mask);
  * more information.
  */
 static void *sn_dma_alloc_coherent(struct device *dev, size_t size,
-                                   dma_addr_t * dma_handle, gfp_t flags)
+                                   dma_addr_t * dma_handle, gfp_t flags,
+                                   struct dma_attrs *attrs)
 {
         void *cpuaddr;
         unsigned long phys_addr;
@@ -137,7 +138,7 @@ static void *sn_dma_alloc_coherent(struct device *dev, size_t size,
  * any associated IOMMU mappings.
  */
 static void sn_dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
-                                 dma_addr_t dma_handle)
+                                 dma_addr_t dma_handle, struct dma_attrs *attrs)
 {
         struct pci_dev *pdev = to_pci_dev(dev);
         struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev);
@@ -466,8 +467,8 @@ int sn_pci_legacy_write(struct pci_bus *bus, u16 port, u32 val, u8 size)
 }
 
 static struct dma_map_ops sn_dma_ops = {
-        .alloc_coherent         = sn_dma_alloc_coherent,
-        .free_coherent          = sn_dma_free_coherent,
+        .alloc                  = sn_dma_alloc_coherent,
+        .free                   = sn_dma_free_coherent,
         .map_page               = sn_dma_map_page,
         .unmap_page             = sn_dma_unmap_page,
         .map_sg                 = sn_dma_map_sg,
diff --git a/arch/m68k/configs/m5275evb_defconfig b/arch/m68k/configs/m5275evb_defconfig
index 33c32aeca12b..a1230e82bb1e 100644
--- a/arch/m68k/configs/m5275evb_defconfig
+++ b/arch/m68k/configs/m5275evb_defconfig
@@ -49,7 +49,6 @@ CONFIG_BLK_DEV_RAM=y
 CONFIG_NETDEVICES=y
 CONFIG_NET_ETHERNET=y
 CONFIG_FEC=y
-CONFIG_FEC2=y
 # CONFIG_NETDEV_1000 is not set
 # CONFIG_NETDEV_10000 is not set
 CONFIG_PPP=y
diff --git a/arch/m68k/include/asm/atomic.h b/arch/m68k/include/asm/atomic.h
index 336e6173794f..f4e32de263a7 100644
--- a/arch/m68k/include/asm/atomic.h
+++ b/arch/m68k/include/asm/atomic.h
@@ -3,6 +3,7 @@
 
 #include <linux/types.h>
 #include <linux/irqflags.h>
+#include <asm/cmpxchg.h>
 
 /*
  * Atomic operations that C can't guarantee us.  Useful for
diff --git a/arch/m68k/mac/config.c b/arch/m68k/mac/config.c
index 96fa6ed7e799..d9f62e0f46c0 100644
--- a/arch/m68k/mac/config.c
+++ b/arch/m68k/mac/config.c
@@ -980,6 +980,9 @@ int __init mac_platform_init(void)
 {
         u8 *swim_base;
 
+        if (!MACH_IS_MAC)
+                return -ENODEV;
+
         /*
          * Serial devices
          */
diff --git a/arch/m68k/platform/520x/config.c b/arch/m68k/platform/520x/config.c
index 235947844f27..09df4b89e8be 100644
--- a/arch/m68k/platform/520x/config.c
+++ b/arch/m68k/platform/520x/config.c
@@ -22,7 +22,7 @@
 
 /***************************************************************************/
 
-#ifdef CONFIG_SPI_COLDFIRE_QSPI
+#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
 
 static void __init m520x_qspi_init(void)
 {
@@ -35,7 +35,7 @@ static void __init m520x_qspi_init(void)
         writew(par, MCF_GPIO_PAR_UART);
 }
 
-#endif /* CONFIG_SPI_COLDFIRE_QSPI */
+#endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */
 
 /***************************************************************************/
 
@@ -79,7 +79,7 @@ void __init config_BSP(char *commandp, int size)
         mach_sched_init = hw_timer_init;
         m520x_uarts_init();
         m520x_fec_init();
-#ifdef CONFIG_SPI_COLDFIRE_QSPI
+#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
         m520x_qspi_init();
 #endif
 }
diff --git a/arch/m68k/platform/523x/config.c b/arch/m68k/platform/523x/config.c
index c8b405d5a961..d47dfd8f50a2 100644
--- a/arch/m68k/platform/523x/config.c
+++ b/arch/m68k/platform/523x/config.c
@@ -22,7 +22,7 @@
 
 /***************************************************************************/
 
-#ifdef CONFIG_SPI_COLDFIRE_QSPI
+#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
 
 static void __init m523x_qspi_init(void)
 {
@@ -36,7 +36,7 @@ static void __init m523x_qspi_init(void)
         writew(par, MCFGPIO_PAR_TIMER);
 }
 
-#endif /* CONFIG_SPI_COLDFIRE_QSPI */
+#endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */
 
 /***************************************************************************/
 
@@ -58,7 +58,7 @@ void __init config_BSP(char *commandp, int size)
 {
         mach_sched_init = hw_timer_init;
         m523x_fec_init();
-#ifdef CONFIG_SPI_COLDFIRE_QSPI
+#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
         m523x_qspi_init();
 #endif
 }
diff --git a/arch/m68k/platform/5249/config.c b/arch/m68k/platform/5249/config.c
index bbf05135bb98..300e729a58d0 100644
--- a/arch/m68k/platform/5249/config.c
+++ b/arch/m68k/platform/5249/config.c
@@ -51,7 +51,7 @@ static struct platform_device *m5249_devices[] __initdata = {
 
 /***************************************************************************/
 
-#ifdef CONFIG_SPI_COLDFIRE_QSPI
+#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
 
 static void __init m5249_qspi_init(void)
 {
@@ -61,7 +61,7 @@ static void __init m5249_qspi_init(void)
         mcf_mapirq2imr(MCF_IRQ_QSPI, MCFINTC_QSPI);
 }
 
-#endif /* CONFIG_SPI_COLDFIRE_QSPI */
+#endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */
 
 /***************************************************************************/
 
@@ -90,7 +90,7 @@ void __init config_BSP(char *commandp, int size)
 #ifdef CONFIG_M5249C3
         m5249_smc91x_init();
 #endif
-#ifdef CONFIG_SPI_COLDFIRE_QSPI
+#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
         m5249_qspi_init();
 #endif
 }
diff --git a/arch/m68k/platform/527x/config.c b/arch/m68k/platform/527x/config.c
index 7ed848c3b848..b3cb378c5e94 100644
--- a/arch/m68k/platform/527x/config.c
+++ b/arch/m68k/platform/527x/config.c
@@ -23,7 +23,7 @@
 
 /***************************************************************************/
 
-#ifdef CONFIG_SPI_COLDFIRE_QSPI
+#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
 
 static void __init m527x_qspi_init(void)
 {
@@ -42,7 +42,7 @@ static void __init m527x_qspi_init(void)
 #endif
 }
 
-#endif /* CONFIG_SPI_COLDFIRE_QSPI */
+#endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */
 
 /***************************************************************************/
 
@@ -74,9 +74,7 @@ static void __init m527x_fec_init(void)
         writew(par | 0xf00, MCF_IPSBAR + 0x100082);
         v = readb(MCF_IPSBAR + 0x100078);
         writeb(v | 0xc0, MCF_IPSBAR + 0x100078);
-#endif
 
-#ifdef CONFIG_FEC2
         /* Set multi-function pins to ethernet mode for fec1 */
         par = readw(MCF_IPSBAR + 0x100082);
         writew(par | 0xa0, MCF_IPSBAR + 0x100082);
@@ -92,7 +90,7 @@ void __init config_BSP(char *commandp, int size)
         mach_sched_init = hw_timer_init;
         m527x_uarts_init();
         m527x_fec_init();
-#ifdef CONFIG_SPI_COLDFIRE_QSPI
+#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
         m527x_qspi_init();
 #endif
 }
diff --git a/arch/m68k/platform/528x/config.c b/arch/m68k/platform/528x/config.c
index d4492926614c..c5f11ba49be5 100644
--- a/arch/m68k/platform/528x/config.c
+++ b/arch/m68k/platform/528x/config.c
@@ -24,7 +24,7 @@
 
 /***************************************************************************/
 
-#ifdef CONFIG_SPI_COLDFIRE_QSPI
+#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
 
 static void __init m528x_qspi_init(void)
 {
@@ -32,7 +32,7 @@ static void __init m528x_qspi_init(void)
         __raw_writeb(0x07, MCFGPIO_PQSPAR);
 }
 
-#endif /* CONFIG_SPI_COLDFIRE_QSPI */
+#endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */
 
 /***************************************************************************/
 
@@ -98,7 +98,7 @@ void __init config_BSP(char *commandp, int size)
         mach_sched_init = hw_timer_init;
         m528x_uarts_init();
         m528x_fec_init();
-#ifdef CONFIG_SPI_COLDFIRE_QSPI
+#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
         m528x_qspi_init();
 #endif
 }
diff --git a/arch/m68k/platform/532x/config.c b/arch/m68k/platform/532x/config.c
index 2bec3477b739..37082d02f2bd 100644
--- a/arch/m68k/platform/532x/config.c
+++ b/arch/m68k/platform/532x/config.c
@@ -30,7 +30,7 @@
 
 /***************************************************************************/
 
-#ifdef CONFIG_SPI_COLDFIRE_QSPI
+#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
 
 static void __init m532x_qspi_init(void)
 {
@@ -38,7 +38,7 @@ static void __init m532x_qspi_init(void)
         writew(0x01f0, MCF_GPIO_PAR_QSPI);
 }
 
-#endif /* CONFIG_SPI_COLDFIRE_QSPI */
+#endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */
 
 /***************************************************************************/
 
@@ -77,7 +77,7 @@ void __init config_BSP(char *commandp, int size)
         mach_sched_init = hw_timer_init;
         m532x_uarts_init();
         m532x_fec_init();
-#ifdef CONFIG_SPI_COLDFIRE_QSPI
+#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
         m532x_qspi_init();
 #endif
 
diff --git a/arch/m68k/platform/68EZ328/Makefile b/arch/m68k/platform/68EZ328/Makefile
index ee97735a242c..b44d799b1115 100644
--- a/arch/m68k/platform/68EZ328/Makefile
+++ b/arch/m68k/platform/68EZ328/Makefile
@@ -3,9 +3,3 @@
 #
 
 obj-y := config.o
-
-extra-y := bootlogo.rh
-
-$(obj)/bootlogo.rh: $(src)/bootlogo.h
-        perl $(src)/../68328/bootlogo.pl < $(src)/bootlogo.h \
-                > $(obj)/bootlogo.rh
diff --git a/arch/m68k/platform/68VZ328/Makefile b/arch/m68k/platform/68VZ328/Makefile
index 447ffa0fd7c7..a49d75e65489 100644
--- a/arch/m68k/platform/68VZ328/Makefile
+++ b/arch/m68k/platform/68VZ328/Makefile
@@ -3,14 +3,9 @@
 #
 
 obj-y           := config.o
-logo-$(UCDIMM)  := bootlogo.rh
-logo-$(DRAGEN2) := screen.h
-extra-y         := $(logo-y)
-
-$(obj)/bootlogo.rh: $(src)/../68EZ328/bootlogo.h
-        perl $(src)/bootlogo.pl < $(src)/../68328/bootlogo.h > $(obj)/bootlogo.rh
+extra-$(DRAGEN2):= screen.h
 
 $(obj)/screen.h: $(src)/screen.xbm $(src)/xbm2lcd.pl
         perl $(src)/xbm2lcd.pl < $(src)/screen.xbm > $(obj)/screen.h
 
-clean-files := $(obj)/screen.h $(obj)/bootlogo.rh
+clean-files := $(obj)/screen.h
diff --git a/arch/m68k/platform/68EZ328/bootlogo.h b/arch/m68k/platform/68VZ328/bootlogo.h
index e842bdae5839..b38e2b255142 100644
--- a/arch/m68k/platform/68EZ328/bootlogo.h
+++ b/arch/m68k/platform/68VZ328/bootlogo.h
@@ -1,6 +1,6 @@
 #define splash_width 640
 #define splash_height 480
-static unsigned char splash_bits[] = {
+unsigned char __attribute__ ((aligned(16))) bootlogo_bits[] = {
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
diff --git a/arch/m68k/platform/coldfire/device.c b/arch/m68k/platform/coldfire/device.c
index fa50c48292ff..3aa77ddea89d 100644
--- a/arch/m68k/platform/coldfire/device.c
+++ b/arch/m68k/platform/coldfire/device.c
@@ -114,14 +114,14 @@ static struct resource mcf_fec1_resources[] = {
 
 static struct platform_device mcf_fec1 = {
         .name                   = "fec",
-        .id                     = 0,
+        .id                     = 1,
         .num_resources          = ARRAY_SIZE(mcf_fec1_resources),
         .resource               = mcf_fec1_resources,
 };
 #endif /* MCFFEC_BASE1 */
 #endif /* CONFIG_FEC */
 
-#ifdef CONFIG_SPI_COLDFIRE_QSPI
+#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
 /*
  *      The ColdFire QSPI module is an SPI protocol hardware block used
  *      on a number of different ColdFire CPUs.
@@ -274,7 +274,7 @@ static struct platform_device mcf_qspi = {
         .resource               = mcf_qspi_resources,
         .dev.platform_data      = &mcf_qspi_data,
 };
-#endif /* CONFIG_SPI_COLDFIRE_QSPI */
+#endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */
 
 static struct platform_device *mcf_devices[] __initdata = {
         &mcf_uart,
@@ -284,7 +284,7 @@ static struct platform_device *mcf_devices[] __initdata = {
         &mcf_fec1,
 #endif
 #endif
-#ifdef CONFIG_SPI_COLDFIRE_QSPI
+#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
         &mcf_qspi,
 #endif
 };
diff --git a/arch/m68k/q40/config.c b/arch/m68k/q40/config.c
index 512adb64f7dd..8a1ce327c963 100644
--- a/arch/m68k/q40/config.c
+++ b/arch/m68k/q40/config.c
@@ -334,6 +334,9 @@ static __init int q40_add_kbd_device(void)
 {
         struct platform_device *pdev;
 
+        if (!MACH_IS_Q40)
+                return -ENODEV;
+
         pdev = platform_device_register_simple("q40kbd", -1, NULL, 0);
         if (IS_ERR(pdev))
                 return PTR_ERR(pdev);
diff --git a/arch/microblaze/include/asm/cmpxchg.h b/arch/microblaze/include/asm/cmpxchg.h
index 0094859abd9b..538afc0ab9f3 100644
--- a/arch/microblaze/include/asm/cmpxchg.h
+++ b/arch/microblaze/include/asm/cmpxchg.h
@@ -1,6 +1,8 @@
 #ifndef _ASM_MICROBLAZE_CMPXCHG_H
 #define _ASM_MICROBLAZE_CMPXCHG_H
 
+#include <linux/irqflags.h>
+
 void __bad_xchg(volatile void *ptr, int size);
 
 static inline unsigned long __xchg(unsigned long x, volatile void *ptr,
diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h
index 3a3e5b886854..01d228286cb0 100644
--- a/arch/microblaze/include/asm/dma-mapping.h
+++ b/arch/microblaze/include/asm/dma-mapping.h
@@ -123,28 +123,34 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
 #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)
 
-static inline void *dma_alloc_coherent(struct device *dev, size_t size,
-                                        dma_addr_t *dma_handle, gfp_t flag)
+#define dma_alloc_coherent(d, s, h, f) dma_alloc_attrs(d, s, h, f, NULL)
+
+static inline void *dma_alloc_attrs(struct device *dev, size_t size,
+                                    dma_addr_t *dma_handle, gfp_t flag,
+                                    struct dma_attrs *attrs)
 {
         struct dma_map_ops *ops = get_dma_ops(dev);
         void *memory;
 
         BUG_ON(!ops);
 
-        memory = ops->alloc_coherent(dev, size, dma_handle, flag);
+        memory = ops->alloc(dev, size, dma_handle, flag, attrs);
 
         debug_dma_alloc_coherent(dev, size, *dma_handle, memory);
         return memory;
 }
 
-static inline void dma_free_coherent(struct device *dev, size_t size,
-                                     void *cpu_addr, dma_addr_t dma_handle)
+#define dma_free_coherent(d,s,c,h) dma_free_attrs(d, s, c, h, NULL)
+
+static inline void dma_free_attrs(struct device *dev, size_t size,
+                                  void *cpu_addr, dma_addr_t dma_handle,
+                                  struct dma_attrs *attrs)
 {
         struct dma_map_ops *ops = get_dma_ops(dev);
 
         BUG_ON(!ops);
         debug_dma_free_coherent(dev, size, cpu_addr, dma_handle);
-        ops->free_coherent(dev, size, cpu_addr, dma_handle);
+        ops->free(dev, size, cpu_addr, dma_handle, attrs);
 }
 
 static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
diff --git a/arch/microblaze/include/asm/futex.h b/arch/microblaze/include/asm/futex.h
index b0526d2716fa..ff8cde159d9a 100644
--- a/arch/microblaze/include/asm/futex.h
+++ b/arch/microblaze/include/asm/futex.h
@@ -24,7 +24,7 @@
                         .word   1b,4b,2b,4b;                            \
                         .previous;"                                     \
         : "=&r" (oldval), "=&r" (ret)                                   \
-        : "b" (uaddr), "i" (-EFAULT), "r" (oparg)                       \
+        : "r" (uaddr), "i" (-EFAULT), "r" (oparg)                       \
         );                                                              \
 })
 
diff --git a/arch/microblaze/include/asm/processor.h b/arch/microblaze/include/asm/processor.h
index 510a8e1c16ba..bffb54527299 100644
--- a/arch/microblaze/include/asm/processor.h
+++ b/arch/microblaze/include/asm/processor.h
@@ -31,6 +31,8 @@ extern const struct seq_operations cpuinfo_op;
 /* Do necessary setup to start up a newly executed thread. */
 void start_thread(struct pt_regs *regs, unsigned long pc, unsigned long usp);
 
+extern void ret_from_fork(void);
+
 # endif /* __ASSEMBLY__ */
 
 # ifndef CONFIG_MMU
@@ -143,8 +145,6 @@ static inline void exit_thread(void)
 
 unsigned long get_wchan(struct task_struct *p);
 
-extern void ret_from_fork(void);
-
 /* The size allocated for kernel stacks. This _must_ be a power of two! */
 # define KERNEL_STACK_SIZE      0x2000
 
diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c
index 65a4af4cbbbe..a2bfa2ca5730 100644
--- a/arch/microblaze/kernel/dma.c
+++ b/arch/microblaze/kernel/dma.c
@@ -33,7 +33,8 @@ static unsigned long get_dma_direct_offset(struct device *dev)
 #define NOT_COHERENT_CACHE
 
 static void *dma_direct_alloc_coherent(struct device *dev, size_t size,
-                                dma_addr_t *dma_handle, gfp_t flag)
+                                       dma_addr_t *dma_handle, gfp_t flag,
+                                       struct dma_attrs *attrs)
 {
 #ifdef NOT_COHERENT_CACHE
         return consistent_alloc(flag, size, dma_handle);
@@ -57,7 +58,8 @@ static void *dma_direct_alloc_coherent(struct device *dev, size_t size,
 }
 
 static void dma_direct_free_coherent(struct device *dev, size_t size,
-                              void *vaddr, dma_addr_t dma_handle)
+                                     void *vaddr, dma_addr_t dma_handle,
+                                     struct dma_attrs *attrs)
 {
 #ifdef NOT_COHERENT_CACHE
         consistent_free(size, vaddr);
@@ -176,8 +178,8 @@ dma_direct_sync_sg_for_device(struct device *dev,
 }
 
 struct dma_map_ops dma_direct_ops = {
-        .alloc_coherent = dma_direct_alloc_coherent,
-        .free_coherent  = dma_direct_free_coherent,
+        .alloc          = dma_direct_alloc_coherent,
+        .free           = dma_direct_free_coherent,
         .map_sg         = dma_direct_map_sg,
         .unmap_sg       = dma_direct_unmap_sg,
         .dma_supported  = dma_direct_dma_supported,
diff --git a/arch/microblaze/kernel/early_printk.c b/arch/microblaze/kernel/early_printk.c
index ec485876d0d0..aba1f9a97d5d 100644
--- a/arch/microblaze/kernel/early_printk.c
+++ b/arch/microblaze/kernel/early_printk.c
@@ -176,6 +176,7 @@ void __init remap_early_printk(void)
         base_addr = (u32) ioremap(base_addr, PAGE_SIZE);
         printk(KERN_CONT "0x%x\n", base_addr);
 
+#ifdef CONFIG_MMU
         /*
          * Early console is on the top of skipped TLB entries
          * decrease tlb_skip size ensure that hardcoded TLB entry will be
@@ -189,6 +190,7 @@ void __init remap_early_printk(void)
          *  cmp rX, orig_base_addr
          */
         tlb_skip -= 1;
+#endif
 }
 
 void __init disable_early_printk(void)
diff --git a/arch/microblaze/kernel/setup.c b/arch/microblaze/kernel/setup.c
index 71af974aa24a..16d8dfd9094b 100644
--- a/arch/microblaze/kernel/setup.c
+++ b/arch/microblaze/kernel/setup.c
@@ -206,6 +206,7 @@ static int microblaze_debugfs_init(void)
 }
 arch_initcall(microblaze_debugfs_init);
 
+# ifdef CONFIG_MMU
 static int __init debugfs_tlb(void)
 {
         struct dentry *d;
@@ -218,6 +219,7 @@ static int __init debugfs_tlb(void)
                 return -ENOMEM;
 }
 device_initcall(debugfs_tlb);
+# endif
 #endif
 
 static int dflt_bus_notify(struct notifier_block *nb,
diff --git a/arch/microblaze/kernel/unwind.c b/arch/microblaze/kernel/unwind.c
index 9781a528cfc9..6be4ae3c3351 100644
--- a/arch/microblaze/kernel/unwind.c
+++ b/arch/microblaze/kernel/unwind.c
@@ -24,6 +24,7 @@
 #include <asm/sections.h>
 #include <asm/exceptions.h>
 #include <asm/unwind.h>
+#include <asm/switch_to.h>
 
 struct stack_trace;
 
diff --git a/arch/microblaze/lib/uaccess_old.S b/arch/microblaze/lib/uaccess_old.S
index f037266cdaf3..f085995ee848 100644
--- a/arch/microblaze/lib/uaccess_old.S
+++ b/arch/microblaze/lib/uaccess_old.S
@@ -122,22 +122,22 @@ __strnlen_user:
 15:     swi     r24, r5, 0x0018 + offset;       \
 16:     swi     r25, r5, 0x001C + offset;       \
         .section __ex_table,"a";                \
-        .word   1b, 0f;                         \
-        .word   2b, 0f;                         \
-        .word   3b, 0f;                         \
-        .word   4b, 0f;                         \
-        .word   5b, 0f;                         \
-        .word   6b, 0f;                         \
-        .word   7b, 0f;                         \
-        .word   8b, 0f;                         \
-        .word   9b, 0f;                         \
-        .word   10b, 0f;                        \
-        .word   11b, 0f;                        \
-        .word   12b, 0f;                        \
-        .word   13b, 0f;                        \
-        .word   14b, 0f;                        \
-        .word   15b, 0f;                        \
-        .word   16b, 0f;                        \
+        .word   1b, 33f;                        \
+        .word   2b, 33f;                        \
+        .word   3b, 33f;                        \
+        .word   4b, 33f;                        \
+        .word   5b, 33f;                        \
+        .word   6b, 33f;                        \
+        .word   7b, 33f;                        \
+        .word   8b, 33f;                        \
+        .word   9b, 33f;                        \
+        .word   10b, 33f;                       \
+        .word   11b, 33f;                       \
+        .word   12b, 33f;                       \
+        .word   13b, 33f;                       \
+        .word   14b, 33f;                       \
+        .word   15b, 33f;                       \
+        .word   16b, 33f;                       \
         .text
 
 #define COPY_80(offset) \
@@ -190,14 +190,17 @@ w2:	sw	r4, r5, r3
 
 .align 4 /* Alignment is important to keep icache happy */
 page:   /* Create room on stack and save registers for storign values */
-        addik   r1, r1, -32
-        swi     r19, r1, 4
-        swi     r20, r1, 8
-        swi     r21, r1, 12
-        swi     r22, r1, 16
-        swi     r23, r1, 20
-        swi     r24, r1, 24
-        swi     r25, r1, 28
+        addik   r1, r1, -40
+        swi     r5, r1, 0
+        swi     r6, r1, 4
+        swi     r7, r1, 8
+        swi     r19, r1, 12
+        swi     r20, r1, 16
+        swi     r21, r1, 20
+        swi     r22, r1, 24
+        swi     r23, r1, 28
+        swi     r24, r1, 32
+        swi     r25, r1, 36
 loop:   /* r4, r19, r20, r21, r22, r23, r24, r25 are used for storing values */
         /* Loop unrolling to get performance boost */
         COPY_80(0x000);
@@ -205,21 +208,44 @@ loop:	/* r4, r19, r20, r21, r22, r23, r24, r25 are used for storing values */
         COPY_80(0x100);
         COPY_80(0x180);
         /* copy loop */
-        addik   r6, r6, 0x200
-        addik   r7, r7, -0x200
-        bneid   r7, loop
-        addik   r5, r5, 0x200
+        addik   r6, r6, 0x200
+        addik   r7, r7, -0x200
+        bneid   r7, loop
+        addik   r5, r5, 0x200
+
         /* Restore register content */
-        lwi     r19, r1, 4
-        lwi     r20, r1, 8
-        lwi     r21, r1, 12
-        lwi     r22, r1, 16
-        lwi     r23, r1, 20
-        lwi     r24, r1, 24
-        lwi     r25, r1, 28
-        addik   r1, r1, 32
+        lwi     r5, r1, 0
+        lwi     r6, r1, 4
+        lwi     r7, r1, 8
+        lwi     r19, r1, 12
+        lwi     r20, r1, 16
+        lwi     r21, r1, 20
+        lwi     r22, r1, 24
+        lwi     r23, r1, 28
+        lwi     r24, r1, 32
+        lwi     r25, r1, 36
+        addik   r1, r1, 40
         /* return back */
+        addik   r3, r0, 0
+        rtsd    r15, 8
+        nop
+
+/* Fault case - return temp count */
+33:
         addik   r3, r7, 0
+        /* Restore register content */
+        lwi     r5, r1, 0
+        lwi     r6, r1, 4
+        lwi     r7, r1, 8
+        lwi     r19, r1, 12
+        lwi     r20, r1, 16
+        lwi     r21, r1, 20
+        lwi     r22, r1, 24
+        lwi     r23, r1, 28
+        lwi     r24, r1, 32
+        lwi     r25, r1, 36
+        addik   r1, r1, 40
+        /* return back */
         rtsd    r15, 8
         nop
 
diff --git a/arch/mips/ath79/dev-wmac.c b/arch/mips/ath79/dev-wmac.c
index e21507052066..9c717bf98ffe 100644
--- a/arch/mips/ath79/dev-wmac.c
+++ b/arch/mips/ath79/dev-wmac.c
@@ -58,8 +58,8 @@ static void __init ar913x_wmac_setup(void)
 
 static int ar933x_wmac_reset(void)
 {
-        ath79_device_reset_clear(AR933X_RESET_WMAC);
         ath79_device_reset_set(AR933X_RESET_WMAC);
+        ath79_device_reset_clear(AR933X_RESET_WMAC);
 
         return 0;
 }
diff --git a/arch/mips/cavium-octeon/dma-octeon.c b/arch/mips/cavium-octeon/dma-octeon.c
index b6bb92c16a47..41dd00884975 100644
--- a/arch/mips/cavium-octeon/dma-octeon.c
+++ b/arch/mips/cavium-octeon/dma-octeon.c
@@ -157,7 +157,7 @@ static void octeon_dma_sync_sg_for_device(struct device *dev,
 }
 
 static void *octeon_dma_alloc_coherent(struct device *dev, size_t size,
-        dma_addr_t *dma_handle, gfp_t gfp)
+        dma_addr_t *dma_handle, gfp_t gfp, struct dma_attrs *attrs)
 {
         void *ret;
 
@@ -192,7 +192,7 @@ static void *octeon_dma_alloc_coherent(struct device *dev, size_t size,
 }
 
 static void octeon_dma_free_coherent(struct device *dev, size_t size,
-        void *vaddr, dma_addr_t dma_handle)
+        void *vaddr, dma_addr_t dma_handle, struct dma_attrs *attrs)
 {
         int order = get_order(size);
 
@@ -240,8 +240,8 @@ EXPORT_SYMBOL(dma_to_phys);
 
 static struct octeon_dma_map_ops octeon_linear_dma_map_ops = {
         .dma_map_ops = {
-                .alloc_coherent = octeon_dma_alloc_coherent,
-                .free_coherent = octeon_dma_free_coherent,
+                .alloc = octeon_dma_alloc_coherent,
+                .free = octeon_dma_free_coherent,
                 .map_page = octeon_dma_map_page,
                 .unmap_page = swiotlb_unmap_page,
                 .map_sg = octeon_dma_map_sg,
@@ -325,8 +325,8 @@ void __init plat_swiotlb_setup(void)
 #ifdef CONFIG_PCI
 static struct octeon_dma_map_ops _octeon_pci_dma_map_ops = {
         .dma_map_ops = {
-                .alloc_coherent = octeon_dma_alloc_coherent,
-                .free_coherent = octeon_dma_free_coherent,
+                .alloc = octeon_dma_alloc_coherent,
+                .free = octeon_dma_free_coherent,
                 .map_page = octeon_dma_map_page,
                 .unmap_page = swiotlb_unmap_page,
                 .map_sg = octeon_dma_map_sg,
diff --git a/arch/mips/cavium-octeon/smp.c b/arch/mips/cavium-octeon/smp.c
index c3e2b85c3b02..97e7ce9b50ed 100644
--- a/arch/mips/cavium-octeon/smp.c
+++ b/arch/mips/cavium-octeon/smp.c
@@ -78,7 +78,7 @@ static inline void octeon_send_ipi_mask(const struct cpumask *mask,
 }
 
 /**
- * Detect available CPUs, populate cpu_possible_map
+ * Detect available CPUs, populate cpu_possible_mask
  */
 static void octeon_smp_hotplug_setup(void)
 {
@@ -268,7 +268,7 @@ static int octeon_cpu_disable(void)
 
         spin_lock(&smp_reserve_lock);
 
-        cpu_clear(cpu, cpu_online_map);
+        set_cpu_online(cpu, false);
         cpu_clear(cpu, cpu_callin_map);
         local_irq_disable();
         fixup_irqs();
diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h
index 7aa37ddfca4b..be39a12901c6 100644
--- a/arch/mips/include/asm/dma-mapping.h
+++ b/arch/mips/include/asm/dma-mapping.h
@@ -57,25 +57,31 @@ dma_set_mask(struct device *dev, u64 mask)
 extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
                enum dma_data_direction direction);
 
-static inline void *dma_alloc_coherent(struct device *dev, size_t size,
-                                       dma_addr_t *dma_handle, gfp_t gfp)
+#define dma_alloc_coherent(d,s,h,f)     dma_alloc_attrs(d,s,h,f,NULL)
+
+static inline void *dma_alloc_attrs(struct device *dev, size_t size,
+                                    dma_addr_t *dma_handle, gfp_t gfp,
+                                    struct dma_attrs *attrs)
 {
         void *ret;
         struct dma_map_ops *ops = get_dma_ops(dev);
 
-        ret = ops->alloc_coherent(dev, size, dma_handle, gfp);
+        ret = ops->alloc(dev, size, dma_handle, gfp, attrs);
 
         debug_dma_alloc_coherent(dev, size, *dma_handle, ret);
 
         return ret;
 }
 
-static inline void dma_free_coherent(struct device *dev, size_t size,
-                                     void *vaddr, dma_addr_t dma_handle)
+#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL)
+
+static inline void dma_free_attrs(struct device *dev, size_t size,
+                                  void *vaddr, dma_addr_t dma_handle,
+                                  struct dma_attrs *attrs)
 {
         struct dma_map_ops *ops = get_dma_ops(dev);
 
-        ops->free_coherent(dev, size, vaddr, dma_handle);
+        ops->free(dev, size, vaddr, dma_handle, attrs);
 
         debug_dma_free_coherent(dev, size, vaddr, dma_handle);
 }
diff --git a/arch/mips/include/asm/mach-jz4740/irq.h b/arch/mips/include/asm/mach-jz4740/irq.h
index a865c983c70a..5ad1a9c113c6 100644
--- a/arch/mips/include/asm/mach-jz4740/irq.h
+++ b/arch/mips/include/asm/mach-jz4740/irq.h
@@ -45,7 +45,7 @@
 #define JZ4740_IRQ_LCD          JZ4740_IRQ(30)
 
 /* 2nd-level interrupts */
-#define JZ4740_IRQ_DMA(x)       (JZ4740_IRQ(32) + (X))
+#define JZ4740_IRQ_DMA(x)       (JZ4740_IRQ(32) + (x))
 
 #define JZ4740_IRQ_INTC_GPIO(x) (JZ4740_IRQ_GPIO0 - (x))
 #define JZ4740_IRQ_GPIO(x)      (JZ4740_IRQ(48) + (x))
diff --git a/arch/mips/include/asm/mmu_context.h b/arch/mips/include/asm/mmu_context.h
index 73c0d45798de..9b02cfba7449 100644
--- a/arch/mips/include/asm/mmu_context.h
+++ b/arch/mips/include/asm/mmu_context.h
@@ -37,12 +37,6 @@ extern void tlbmiss_handler_setup_pgd(unsigned long pgd);
                 write_c0_xcontext((unsigned long) smp_processor_id() << 51); \
         } while (0)
 
-
-static inline unsigned long get_current_pgd(void)
-{
-        return PHYS_TO_XKSEG_CACHED((read_c0_context() >> 11) & ~0xfffUL);
-}
-
 #else /* CONFIG_MIPS_PGD_C0_CONTEXT: using  pgd_current*/
 
 /*
diff --git a/arch/mips/kernel/mips-mt-fpaff.c b/arch/mips/kernel/mips-mt-fpaff.c
index 802e6160f37e..33f63bab478a 100644
--- a/arch/mips/kernel/mips-mt-fpaff.c
+++ b/arch/mips/kernel/mips-mt-fpaff.c
@@ -173,7 +173,7 @@ asmlinkage long mipsmt_sys_sched_getaffinity(pid_t pid, unsigned int len,
         if (retval)
                 goto out_unlock;
 
-        cpus_and(mask, p->thread.user_cpus_allowed, cpu_possible_map);
+        cpumask_and(&mask, &p->thread.user_cpus_allowed, cpu_possible_mask);
 
 out_unlock:
         read_unlock(&tasklist_lock);
diff --git a/arch/mips/kernel/proc.c b/arch/mips/kernel/proc.c
index e309665b6c81..f8b2c592514d 100644
--- a/arch/mips/kernel/proc.c
+++ b/arch/mips/kernel/proc.c
@@ -25,7 +25,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
         int i;
 
 #ifdef CONFIG_SMP
-        if (!cpu_isset(n, cpu_online_map))
+        if (!cpu_online(n))
                 return 0;
 #endif
 
diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c
index 185ca00c4c84..d5a338a1739c 100644
--- a/arch/mips/kernel/signal.c
+++ b/arch/mips/kernel/signal.c
@@ -257,11 +257,8 @@ asmlinkage int sys_sigsuspend(nabi_no_regargs struct pt_regs regs)
                 return -EFAULT;
         sigdelsetmask(&newset, ~_BLOCKABLE);
 
-        spin_lock_irq(&current->sighand->siglock);
         current->saved_sigmask = current->blocked;
-        current->blocked = newset;
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
+        set_current_blocked(&newset);
 
         current->state = TASK_INTERRUPTIBLE;
         schedule();
@@ -286,11 +283,8 @@ asmlinkage int sys_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
                 return -EFAULT;
         sigdelsetmask(&newset, ~_BLOCKABLE);
 
-        spin_lock_irq(&current->sighand->siglock);
         current->saved_sigmask = current->blocked;
-        current->blocked = newset;
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
+        set_current_blocked(&newset);
 
         current->state = TASK_INTERRUPTIBLE;
         schedule();
@@ -362,10 +356,7 @@ asmlinkage void sys_sigreturn(nabi_no_regargs struct pt_regs regs)
                 goto badframe;
 
         sigdelsetmask(&blocked, ~_BLOCKABLE);
-        spin_lock_irq(&current->sighand->siglock);
-        current->blocked = blocked;
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
+        set_current_blocked(&blocked);
 
         sig = restore_sigcontext(&regs, &frame->sf_sc);
         if (sig < 0)
@@ -401,10 +392,7 @@ asmlinkage void sys_rt_sigreturn(nabi_no_regargs struct pt_regs regs)
                 goto badframe;
 
         sigdelsetmask(&set, ~_BLOCKABLE);
-        spin_lock_irq(&current->sighand->siglock);
-        current->blocked = set;
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
+        set_current_blocked(&set);
 
         sig = restore_sigcontext(&regs, &frame->rs_uc.uc_mcontext);
         if (sig < 0)
@@ -580,12 +568,7 @@ static int handle_signal(unsigned long sig, siginfo_t *info,
         if (ret)
                 return ret;
 
-        spin_lock_irq(&current->sighand->siglock);
-        sigorsets(&current->blocked, &current->blocked, &ka->sa.sa_mask);
-        if (!(ka->sa.sa_flags & SA_NODEFER))
-                sigaddset(&current->blocked, sig);
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
+        block_sigmask(ka, sig);
 
         return ret;
 }
diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c
index 06b5da392e24..ac3b8d89aae5 100644
--- a/arch/mips/kernel/signal32.c
+++ b/arch/mips/kernel/signal32.c
@@ -290,11 +290,8 @@ asmlinkage int sys32_sigsuspend(nabi_no_regargs struct pt_regs regs)
                 return -EFAULT;
         sigdelsetmask(&newset, ~_BLOCKABLE);
 
-        spin_lock_irq(&current->sighand->siglock);
         current->saved_sigmask = current->blocked;
-        current->blocked = newset;
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
+        set_current_blocked(&newset);
 
         current->state = TASK_INTERRUPTIBLE;
         schedule();
@@ -318,11 +315,8 @@ asmlinkage int sys32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
                 return -EFAULT;
         sigdelsetmask(&newset, ~_BLOCKABLE);
 
-        spin_lock_irq(&current->sighand->siglock);
         current->saved_sigmask = current->blocked;
-        current->blocked = newset;
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
+        set_current_blocked(&newset);
 
         current->state = TASK_INTERRUPTIBLE;
         schedule();
@@ -488,10 +482,7 @@ asmlinkage void sys32_sigreturn(nabi_no_regargs struct pt_regs regs)
                 goto badframe;
 
         sigdelsetmask(&blocked, ~_BLOCKABLE);
-        spin_lock_irq(&current->sighand->siglock);
-        current->blocked = blocked;
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
+        set_current_blocked(&blocked);
 
         sig = restore_sigcontext32(&regs, &frame->sf_sc);
         if (sig < 0)
@@ -529,10 +520,7 @@ asmlinkage void sys32_rt_sigreturn(nabi_no_regargs struct pt_regs regs)
                 goto badframe;
 
         sigdelsetmask(&set, ~_BLOCKABLE);
-        spin_lock_irq(&current->sighand->siglock);
-        current->blocked = set;
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
+        set_current_blocked(&set);
 
         sig = restore_sigcontext32(&regs, &frame->rs_uc.uc_mcontext);
         if (sig < 0)
diff --git a/arch/mips/kernel/signal_n32.c b/arch/mips/kernel/signal_n32.c
index ae29e894ab8d..86eb4b04631c 100644
--- a/arch/mips/kernel/signal_n32.c
+++ b/arch/mips/kernel/signal_n32.c
@@ -93,11 +93,8 @@ asmlinkage int sysn32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
         sigset_from_compat(&newset, &uset);
         sigdelsetmask(&newset, ~_BLOCKABLE);
 
-        spin_lock_irq(&current->sighand->siglock);
         current->saved_sigmask = current->blocked;
-        current->blocked = newset;
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
+        set_current_blocked(&newset);
 
         current->state = TASK_INTERRUPTIBLE;
         schedule();
@@ -121,10 +118,7 @@ asmlinkage void sysn32_rt_sigreturn(nabi_no_regargs struct pt_regs regs)
                 goto badframe;
 
         sigdelsetmask(&set, ~_BLOCKABLE);
-        spin_lock_irq(&current->sighand->siglock);
-        current->blocked = set;
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
+        set_current_blocked(&set);
 
         sig = restore_sigcontext(&regs, &frame->rs_uc.uc_mcontext);
         if (sig < 0)
diff --git a/arch/mips/kernel/smp-bmips.c b/arch/mips/kernel/smp-bmips.c
index ca673569fd24..3046e2986006 100644
--- a/arch/mips/kernel/smp-bmips.c
+++ b/arch/mips/kernel/smp-bmips.c
@@ -317,7 +317,7 @@ static int bmips_cpu_disable(void)
 
         pr_info("SMP: CPU%d is offline\n", cpu);
 
-        cpu_clear(cpu, cpu_online_map);
+        set_cpu_online(cpu, false);
         cpu_clear(cpu, cpu_callin_map);
 
         local_flush_tlb_all();
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index 9c1cce9de35f..ba9376bf52a1 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -148,7 +148,7 @@ static void stop_this_cpu(void *dummy)
         /*
          * Remove this CPU:
          */
-        cpu_clear(smp_processor_id(), cpu_online_map);
+        set_cpu_online(smp_processor_id(), false);
         for (;;) {
                 if (cpu_wait)
                         (*cpu_wait)();          /* Wait if available. */
@@ -174,7 +174,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
         mp_ops->prepare_cpus(max_cpus);
         set_cpu_sibling_map(0);
 #ifndef CONFIG_HOTPLUG_CPU
-        init_cpu_present(&cpu_possible_map);
+        init_cpu_present(cpu_possible_mask);
 #endif
 }
 
@@ -248,7 +248,7 @@ int __cpuinit __cpu_up(unsigned int cpu)
         while (!cpu_isset(cpu, cpu_callin_map))
                 udelay(100);
 
-        cpu_set(cpu, cpu_online_map);
+        set_cpu_online(cpu, true);
 
         return 0;
 }
@@ -320,13 +320,12 @@ void flush_tlb_mm(struct mm_struct *mm)
         if ((atomic_read(&mm->mm_users) != 1) || (current->mm != mm)) {
                 smp_on_other_tlbs(flush_tlb_mm_ipi, mm);
         } else {
-                cpumask_t mask = cpu_online_map;
                 unsigned int cpu;
 
-                cpu_clear(smp_processor_id(), mask);
-                for_each_cpu_mask(cpu, mask)
-                        if (cpu_context(cpu, mm))
+                for_each_online_cpu(cpu) {
+                        if (cpu != smp_processor_id() && cpu_context(cpu, mm))
                                 cpu_context(cpu, mm) = 0;
+                }
         }
         local_flush_tlb_mm(mm);
 
@@ -360,13 +359,12 @@ void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned l
 
                 smp_on_other_tlbs(flush_tlb_range_ipi, &fd);
         } else {
-                cpumask_t mask = cpu_online_map;
                 unsigned int cpu;
 
-                cpu_clear(smp_processor_id(), mask);
-                for_each_cpu_mask(cpu, mask)
-                        if (cpu_context(cpu, mm))
+                for_each_online_cpu(cpu) {
+                        if (cpu != smp_processor_id() && cpu_context(cpu, mm))
                                 cpu_context(cpu, mm) = 0;
+                }
         }
         local_flush_tlb_range(vma, start, end);
         preempt_enable();
@@ -407,13 +405,12 @@ void flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
 
                 smp_on_other_tlbs(flush_tlb_page_ipi, &fd);
         } else {
-                cpumask_t mask = cpu_online_map;
                 unsigned int cpu;
 
-                cpu_clear(smp_processor_id(), mask);
-                for_each_cpu_mask(cpu, mask)
-                        if (cpu_context(cpu, vma->vm_mm))
+                for_each_online_cpu(cpu) {
+                        if (cpu != smp_processor_id() && cpu_context(cpu, vma->vm_mm))
                                 cpu_context(cpu, vma->vm_mm) = 0;
+                }
         }
         local_flush_tlb_page(vma, page);
         preempt_enable();
diff --git a/arch/mips/kernel/smtc.c b/arch/mips/kernel/smtc.c
index c4f75bbc0bd6..f5dd38f1d015 100644
--- a/arch/mips/kernel/smtc.c
+++ b/arch/mips/kernel/smtc.c
@@ -291,7 +291,7 @@ static void smtc_configure_tlb(void)
  * possibly leave some TCs/VPEs as "slave" processors.
  *
  * Use c0_MVPConf0 to find out how many TCs are available, setting up
- * cpu_possible_map and the logical/physical mappings.
+ * cpu_possible_mask and the logical/physical mappings.
  */
 
 int __init smtc_build_cpu_map(int start_cpu_slot)
diff --git a/arch/mips/mm/c-octeon.c b/arch/mips/mm/c-octeon.c
index 1f9ca07f53c8..47037ec5589b 100644
--- a/arch/mips/mm/c-octeon.c
+++ b/arch/mips/mm/c-octeon.c
@@ -80,9 +80,9 @@ static void octeon_flush_icache_all_cores(struct vm_area_struct *vma)
         if (vma)
                 mask = *mm_cpumask(vma->vm_mm);
         else
-                mask = cpu_online_map;
-        cpu_clear(cpu, mask);
-        for_each_cpu_mask(cpu, mask)
+                mask = *cpu_online_mask;
+        cpumask_clear_cpu(cpu, &mask);
+        for_each_cpu(cpu, &mask)
                 octeon_send_ipi_single(cpu, SMP_ICACHE_FLUSH);
 
         preempt_enable();
diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index 46084912e588..3fab2046c8a4 100644
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c
@@ -98,7 +98,7 @@ void *dma_alloc_noncoherent(struct device *dev, size_t size,
 EXPORT_SYMBOL(dma_alloc_noncoherent);
 
 static void *mips_dma_alloc_coherent(struct device *dev, size_t size,
-        dma_addr_t * dma_handle, gfp_t gfp)
+        dma_addr_t * dma_handle, gfp_t gfp, struct dma_attrs *attrs)
 {
         void *ret;
 
@@ -132,7 +132,7 @@ void dma_free_noncoherent(struct device *dev, size_t size, void *vaddr,
 EXPORT_SYMBOL(dma_free_noncoherent);
 
 static void mips_dma_free_coherent(struct device *dev, size_t size, void *vaddr,
-        dma_addr_t dma_handle)
+        dma_addr_t dma_handle, struct dma_attrs *attrs)
 {
         unsigned long addr = (unsigned long) vaddr;
         int order = get_order(size);
@@ -323,8 +323,8 @@ void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 EXPORT_SYMBOL(dma_cache_sync);
 
 static struct dma_map_ops mips_default_dma_map_ops = {
-        .alloc_coherent = mips_dma_alloc_coherent,
-        .free_coherent = mips_dma_free_coherent,
+        .alloc = mips_dma_alloc_coherent,
+        .free = mips_dma_free_coherent,
         .map_page = mips_dma_map_page,
         .unmap_page = mips_dma_unmap_page,
         .map_sg = mips_dma_map_sg,
diff --git a/arch/mips/netlogic/common/smp.c b/arch/mips/netlogic/common/smp.c
index db17f49886c2..fab316de57e9 100644
--- a/arch/mips/netlogic/common/smp.c
+++ b/arch/mips/netlogic/common/smp.c
@@ -165,7 +165,7 @@ void __init nlm_smp_setup(void)
         cpu_set(boot_cpu, phys_cpu_present_map);
         __cpu_number_map[boot_cpu] = 0;
         __cpu_logical_map[0] = boot_cpu;
-        cpu_set(0, cpu_possible_map);
+        set_cpu_possible(0, true);
 
         num_cpus = 1;
         for (i = 0; i < NR_CPUS; i++) {
@@ -177,14 +177,14 @@ void __init nlm_smp_setup(void)
                         cpu_set(i, phys_cpu_present_map);
                         __cpu_number_map[i] = num_cpus;
                         __cpu_logical_map[num_cpus] = i;
-                        cpu_set(num_cpus, cpu_possible_map);
+                        set_cpu_possible(num_cpus, true);
                         ++num_cpus;
                 }
         }
 
         pr_info("Phys CPU present map: %lx, possible map %lx\n",
                 (unsigned long)phys_cpu_present_map.bits[0],
-                (unsigned long)cpu_possible_map.bits[0]);
+                (unsigned long)cpumask_bits(cpu_possible_mask)[0]);
 
         pr_info("Detected %i Slave CPU(s)\n", num_cpus);
         nlm_set_nmi_handler(nlm_boot_secondary_cpus);
diff --git a/arch/mips/pmc-sierra/yosemite/smp.c b/arch/mips/pmc-sierra/yosemite/smp.c
index 2608752898c0..b71fae231049 100644
--- a/arch/mips/pmc-sierra/yosemite/smp.c
+++ b/arch/mips/pmc-sierra/yosemite/smp.c
@@ -146,7 +146,7 @@ static void __cpuinit yos_boot_secondary(int cpu, struct task_struct *idle)
 }
 
 /*
- * Detect available CPUs, populate cpu_possible_map before smp_init
+ * Detect available CPUs, populate cpu_possible_mask before smp_init
  *
  * We don't want to start the secondary CPU yet nor do we have a nice probing
  * feature in PMON so we just assume presence of the secondary core.
@@ -155,10 +155,10 @@ static void __init yos_smp_setup(void)
 {
         int i;
 
-        cpus_clear(cpu_possible_map);
+        init_cpu_possible(cpu_none_mask);
 
         for (i = 0; i < 2; i++) {
-                cpu_set(i, cpu_possible_map);
+                set_cpu_possible(i, true);
                 __cpu_number_map[i]     = i;
                 __cpu_logical_map[i]    = i;
         }
@@ -169,7 +169,7 @@ static void __init yos_prepare_cpus(unsigned int max_cpus)
         /*
          * Be paranoid.  Enable the IPI only if we're really about to go SMP.
          */
-        if (cpus_weight(cpu_possible_map))
+        if (num_possible_cpus())
                 set_c0_status(STATUSF_IP5);
 }
 
diff --git a/arch/mips/sgi-ip27/ip27-smp.c b/arch/mips/sgi-ip27/ip27-smp.c
index c6851df9ab74..735b43bf8f82 100644
--- a/arch/mips/sgi-ip27/ip27-smp.c
+++ b/arch/mips/sgi-ip27/ip27-smp.c
@@ -76,7 +76,7 @@ static int do_cpumask(cnodeid_t cnode, nasid_t nasid, int highest)
                         /* Only let it join in if it's marked enabled */
                         if ((acpu->cpu_info.flags & KLINFO_ENABLE) &&
                             (tot_cpus_found != NR_CPUS)) {
-                                cpu_set(cpuid, cpu_possible_map);
+                                set_cpu_possible(cpuid, true);
                                 alloc_cpupda(cpuid, tot_cpus_found);
                                 cpus_found++;
                                 tot_cpus_found++;
diff --git a/arch/mips/sibyte/bcm1480/smp.c b/arch/mips/sibyte/bcm1480/smp.c
index d667875be564..de88e22694a0 100644
--- a/arch/mips/sibyte/bcm1480/smp.c
+++ b/arch/mips/sibyte/bcm1480/smp.c
@@ -138,7 +138,7 @@ static void __cpuinit bcm1480_boot_secondary(int cpu, struct task_struct *idle)
 
 /*
  * Use CFE to find out how many CPUs are available, setting up
- * cpu_possible_map and the logical/physical mappings.
+ * cpu_possible_mask and the logical/physical mappings.
  * XXXKW will the boot CPU ever not be physical 0?
  *
  * Common setup before any secondaries are started
@@ -147,14 +147,13 @@ static void __init bcm1480_smp_setup(void)
 {
         int i, num;
 
-        cpus_clear(cpu_possible_map);
-        cpu_set(0, cpu_possible_map);
+        init_cpu_possible(cpumask_of(0));
         __cpu_number_map[0] = 0;
         __cpu_logical_map[0] = 0;
 
         for (i = 1, num = 0; i < NR_CPUS; i++) {
                 if (cfe_cpu_stop(i) == 0) {
-                        cpu_set(i, cpu_possible_map);
+                        set_cpu_possible(i, true);
                         __cpu_number_map[i] = ++num;
                         __cpu_logical_map[num] = i;
                 }
diff --git a/arch/mips/sibyte/sb1250/smp.c b/arch/mips/sibyte/sb1250/smp.c
index 38e7f6bd7922..285cfef4ebc0 100644
--- a/arch/mips/sibyte/sb1250/smp.c
+++ b/arch/mips/sibyte/sb1250/smp.c
@@ -126,7 +126,7 @@ static void __cpuinit sb1250_boot_secondary(int cpu, struct task_struct *idle)
 
 /*
  * Use CFE to find out how many CPUs are available, setting up
- * cpu_possible_map and the logical/physical mappings.
+ * cpu_possible_mask and the logical/physical mappings.
  * XXXKW will the boot CPU ever not be physical 0?
  *
  * Common setup before any secondaries are started
@@ -135,14 +135,13 @@ static void __init sb1250_smp_setup(void)
 {
         int i, num;
 
-        cpus_clear(cpu_possible_map);
-        cpu_set(0, cpu_possible_map);
+        init_cpu_possible(cpumask_of(0));
         __cpu_number_map[0] = 0;
         __cpu_logical_map[0] = 0;
 
         for (i = 1, num = 0; i < NR_CPUS; i++) {
                 if (cfe_cpu_stop(i) == 0) {
-                        cpu_set(i, cpu_possible_map);
+                        set_cpu_possible(i, true);
                         __cpu_number_map[i] = ++num;
                         __cpu_logical_map[num] = i;
                 }
diff --git a/arch/mn10300/kernel/smp.c b/arch/mn10300/kernel/smp.c
index 910dddf65e44..9cd69ad6aa02 100644
--- a/arch/mn10300/kernel/smp.c
+++ b/arch/mn10300/kernel/smp.c
@@ -24,6 +24,7 @@
 #include <linux/sched.h>
 #include <linux/profile.h>
 #include <linux/smp.h>
+#include <linux/cpu.h>
 #include <asm/tlbflush.h>
 #include <asm/bitops.h>
 #include <asm/processor.h>
@@ -38,7 +39,6 @@
 #include "internal.h"
 
 #ifdef CONFIG_HOTPLUG_CPU
-#include <linux/cpu.h>
 #include <asm/cacheflush.h>
 
 static unsigned long sleep_mode[NR_CPUS];
@@ -874,10 +874,13 @@ static void __init smp_online(void)
 
         cpu = smp_processor_id();
 
-        local_irq_enable();
+        notify_cpu_starting(cpu);
 
+        ipi_call_lock();
         set_cpu_online(cpu, true);
-        smp_wmb();
+        ipi_call_unlock();
+
+        local_irq_enable();
 }
 
 /**
diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index 3ae56073cc3d..6c6defc24619 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -6,6 +6,7 @@
 #define _ASM_PARISC_ATOMIC_H_
 
 #include <linux/types.h>
+#include <asm/cmpxchg.h>
 
 /*
  * Atomic operations that C can't guarantee us.  Useful for
@@ -48,112 +49,6 @@ extern arch_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned;
 #  define _atomic_spin_unlock_irqrestore(l,f) do { local_irq_restore(f); } while (0)
 #endif
 
-/* This should get optimized out since it's never called.
-** Or get a link error if xchg is used "wrong".
-*/
-extern void __xchg_called_with_bad_pointer(void);
-
-
-/* __xchg32/64 defined in arch/parisc/lib/bitops.c */
-extern unsigned long __xchg8(char, char *);
-extern unsigned long __xchg32(int, int *);
-#ifdef CONFIG_64BIT
-extern unsigned long __xchg64(unsigned long, unsigned long *);
-#endif
-
-/* optimizer better get rid of switch since size is a constant */
-static __inline__ unsigned long
-__xchg(unsigned long x, __volatile__ void * ptr, int size)
-{
-        switch(size) {
-#ifdef CONFIG_64BIT
-        case 8: return __xchg64(x,(unsigned long *) ptr);
-#endif
-        case 4: return __xchg32((int) x, (int *) ptr);
-        case 1: return __xchg8((char) x, (char *) ptr);
-        }
-        __xchg_called_with_bad_pointer();
-        return x;
-}
-
-
-/*
-** REVISIT - Abandoned use of LDCW in xchg() for now:
-** o need to test sizeof(*ptr) to avoid clearing adjacent bytes
-** o and while we are at it, could CONFIG_64BIT code use LDCD too?
-**
-**      if (__builtin_constant_p(x) && (x == NULL))
-**              if (((unsigned long)p & 0xf) == 0)
-**                      return __ldcw(p);
-*/
-#define xchg(ptr,x) \
-        ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
-
-
-#define __HAVE_ARCH_CMPXCHG     1
-
-/* bug catcher for when unsupported size is used - won't link */
-extern void __cmpxchg_called_with_bad_pointer(void);
-
-/* __cmpxchg_u32/u64 defined in arch/parisc/lib/bitops.c */
-extern unsigned long __cmpxchg_u32(volatile unsigned int *m, unsigned int old, unsigned int new_);
-extern unsigned long __cmpxchg_u64(volatile unsigned long *ptr, unsigned long old, unsigned long new_);
-
-/* don't worry...optimizer will get rid of most of this */
-static __inline__ unsigned long
-__cmpxchg(volatile void *ptr, unsigned long old, unsigned long new_, int size)
-{
-        switch(size) {
-#ifdef CONFIG_64BIT
-        case 8: return __cmpxchg_u64((unsigned long *)ptr, old, new_);
-#endif
-        case 4: return __cmpxchg_u32((unsigned int *)ptr, (unsigned int) old, (unsigned int) new_);
-        }
-        __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))); \
-  })
-
-#include <asm-generic/cmpxchg-local.h>
-
-static inline unsigned long __cmpxchg_local(volatile void *ptr,
-                                      unsigned long old,
-                                      unsigned long new_, int size)
-{
-        switch (size) {
-#ifdef CONFIG_64BIT
-        case 8: return __cmpxchg_u64((unsigned long *)ptr, old, new_);
-#endif
-        case 4: return __cmpxchg_u32(ptr, old, new_);
-        default:
-                return __cmpxchg_local_generic(ptr, old, new_, size);
-        }
-}
-
-/*
- * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
- * them available.
- */
-#define cmpxchg_local(ptr, o, n)                                        \
-        ((__typeof__(*(ptr)))__cmpxchg_local((ptr), (unsigned long)(o), \
-                        (unsigned long)(n), sizeof(*(ptr))))
-#ifdef CONFIG_64BIT
-#define cmpxchg64_local(ptr, o, n)                                      \
-  ({                                                                    \
-        BUILD_BUG_ON(sizeof(*(ptr)) != 8);                              \
-        cmpxchg_local((ptr), (o), (n));                                 \
-  })
-#else
-#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
-#endif
-
 /*
  * Note that we need not lock read accesses - aligned word writes/reads
  * are atomic, so a reader never sees inconsistent values.
diff --git a/arch/parisc/include/asm/cmpxchg.h b/arch/parisc/include/asm/cmpxchg.h
new file mode 100644
index 000000000000..dbd13354ec41
--- /dev/null
+++ b/arch/parisc/include/asm/cmpxchg.h
@@ -0,0 +1,116 @@
+/*
+ * forked from parisc asm/atomic.h which was:
+ *      Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org>
+ *      Copyright (C) 2006 Kyle McMartin <kyle@parisc-linux.org>
+ */
+
+#ifndef _ASM_PARISC_CMPXCHG_H_
+#define _ASM_PARISC_CMPXCHG_H_
+
+/* This should get optimized out since it's never called.
+** Or get a link error if xchg is used "wrong".
+*/
+extern void __xchg_called_with_bad_pointer(void);
+
+/* __xchg32/64 defined in arch/parisc/lib/bitops.c */
+extern unsigned long __xchg8(char, char *);
+extern unsigned long __xchg32(int, int *);
+#ifdef CONFIG_64BIT
+extern unsigned long __xchg64(unsigned long, unsigned long *);
+#endif
+
+/* optimizer better get rid of switch since size is a constant */
+static inline unsigned long
+__xchg(unsigned long x, __volatile__ void *ptr, int size)
+{
+        switch (size) {
+#ifdef CONFIG_64BIT
+        case 8: return __xchg64(x, (unsigned long *) ptr);
+#endif
+        case 4: return __xchg32((int) x, (int *) ptr);
+        case 1: return __xchg8((char) x, (char *) ptr);
+        }
+        __xchg_called_with_bad_pointer();
+        return x;
+}
+
+/*
+** REVISIT - Abandoned use of LDCW in xchg() for now:
+** o need to test sizeof(*ptr) to avoid clearing adjacent bytes
+** o and while we are at it, could CONFIG_64BIT code use LDCD too?
+**
+**      if (__builtin_constant_p(x) && (x == NULL))
+**              if (((unsigned long)p & 0xf) == 0)
+**                      return __ldcw(p);
+*/
+#define xchg(ptr, x) \
+        ((__typeof__(*(ptr)))__xchg((unsigned long)(x), (ptr), sizeof(*(ptr))))
+
+#define __HAVE_ARCH_CMPXCHG     1
+
+/* bug catcher for when unsupported size is used - won't link */
+extern void __cmpxchg_called_with_bad_pointer(void);
+
+/* __cmpxchg_u32/u64 defined in arch/parisc/lib/bitops.c */
+extern unsigned long __cmpxchg_u32(volatile unsigned int *m, unsigned int old,
+                                   unsigned int new_);
+extern unsigned long __cmpxchg_u64(volatile unsigned long *ptr,
+                                   unsigned long old, unsigned long new_);
+
+/* don't worry...optimizer will get rid of most of this */
+static inline unsigned long
+__cmpxchg(volatile void *ptr, unsigned long old, unsigned long new_, int size)
+{
+        switch (size) {
+#ifdef CONFIG_64BIT
+        case 8: return __cmpxchg_u64((unsigned long *)ptr, old, new_);
+#endif
+        case 4: return __cmpxchg_u32((unsigned int *)ptr,
+                                     (unsigned int)old, (unsigned int)new_);
+        }
+        __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))); \
+})
+
+#include <asm-generic/cmpxchg-local.h>
+
+static inline unsigned long __cmpxchg_local(volatile void *ptr,
+                                      unsigned long old,
+                                      unsigned long new_, int size)
+{
+        switch (size) {
+#ifdef CONFIG_64BIT
+        case 8: return __cmpxchg_u64((unsigned long *)ptr, old, new_);
+#endif
+        case 4: return __cmpxchg_u32(ptr, old, new_);
+        default:
+                return __cmpxchg_local_generic(ptr, old, new_, size);
+        }
+}
+
+/*
+ * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
+ * them available.
+ */
+#define cmpxchg_local(ptr, o, n)                                        \
+        ((__typeof__(*(ptr)))__cmpxchg_local((ptr), (unsigned long)(o), \
+                        (unsigned long)(n), sizeof(*(ptr))))
+#ifdef CONFIG_64BIT
+#define cmpxchg64_local(ptr, o, n)                                      \
+({                                                                      \
+        BUILD_BUG_ON(sizeof(*(ptr)) != 8);                              \
+        cmpxchg_local((ptr), (o), (n));                                 \
+})
+#else
+#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
+#endif
+
+#endif /* _ASM_PARISC_CMPXCHG_H_ */
diff --git a/arch/parisc/include/asm/hardware.h b/arch/parisc/include/asm/hardware.h
index 4e9626836bab..d1d864b81bae 100644
--- a/arch/parisc/include/asm/hardware.h
+++ b/arch/parisc/include/asm/hardware.h
@@ -2,7 +2,6 @@
 #define _PARISC_HARDWARE_H
 
 #include <linux/mod_devicetable.h>
-#include <asm/pdc.h>
 
 #define HWTYPE_ANY_ID           PA_HWTYPE_ANY_ID
 #define HVERSION_ANY_ID         PA_HVERSION_ANY_ID
@@ -95,12 +94,14 @@ struct bc_module {
 #define HPHW_MC        15
 #define HPHW_FAULTY    31
 
+struct parisc_device_id;
 
 /* hardware.c: */
 extern const char *parisc_hardware_description(struct parisc_device_id *id);
 extern enum cpu_type parisc_get_cpu_type(unsigned long hversion);
 
 struct pci_dev;
+struct hardware_path;
 
 /* drivers.c: */
 extern struct parisc_device *alloc_pa_dev(unsigned long hpa,
diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h
index a84cc1f925f6..4e0e7dbf0f3f 100644
--- a/arch/parisc/include/asm/page.h
+++ b/arch/parisc/include/asm/page.h
@@ -160,5 +160,11 @@ extern int npmem_ranges;
 
 #include <asm-generic/memory_model.h>
 #include <asm-generic/getorder.h>
+#include <asm/pdc.h>
+
+#define PAGE0   ((struct zeropage *)__PAGE_OFFSET)
+
+/* DEFINITION OF THE ZERO-PAGE (PAG0) */
+/* based on work by Jason Eckhardt (jason@equator.com) */
 
 #endif /* _PARISC_PAGE_H */
diff --git a/arch/parisc/include/asm/pdc.h b/arch/parisc/include/asm/pdc.h
index 4ca510b3c6f8..7f0f2d23059d 100644
--- a/arch/parisc/include/asm/pdc.h
+++ b/arch/parisc/include/asm/pdc.h
@@ -343,8 +343,6 @@
 
 #ifdef __KERNEL__
 
-#include <asm/page.h> /* for __PAGE_OFFSET */
-
 extern int pdc_type;
 
 /* Values for pdc_type */
@@ -677,11 +675,6 @@ static inline char * os_id_to_string(u16 os_id) {
 
 #endif /* __KERNEL__ */
 
-#define PAGE0   ((struct zeropage *)__PAGE_OFFSET)
-
-/* DEFINITION OF THE ZERO-PAGE (PAG0) */
-/* based on work by Jason Eckhardt (jason@equator.com) */
-
 /* flags of the device_path */
 #define PF_AUTOBOOT     0x80
 #define PF_AUTOSEARCH   0x40
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index 22dadeb58695..ee99f2339356 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -44,6 +44,8 @@ struct vm_area_struct;
 
 #endif /* !__ASSEMBLY__ */
 
+#include <asm/page.h>
+
 #define pte_ERROR(e) \
         printk("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, pte_val(e))
 #define pmd_ERROR(e) \
diff --git a/arch/parisc/include/asm/spinlock.h b/arch/parisc/include/asm/spinlock.h
index 804aa28ab1d6..3516e0b27044 100644
--- a/arch/parisc/include/asm/spinlock.h
+++ b/arch/parisc/include/asm/spinlock.h
@@ -1,6 +1,8 @@
 #ifndef __ASM_SPINLOCK_H
 #define __ASM_SPINLOCK_H
 
+#include <asm/barrier.h>
+#include <asm/ldcw.h>
 #include <asm/processor.h>
 #include <asm/spinlock_types.h>
 
diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_cons.c
index 4f004596a6e7..47341aa208f2 100644
--- a/arch/parisc/kernel/pdc_cons.c
+++ b/arch/parisc/kernel/pdc_cons.c
@@ -50,6 +50,7 @@
 #include <linux/init.h>
 #include <linux/major.h>
 #include <linux/tty.h>
+#include <asm/page.h>           /* for PAGE0 */
 #include <asm/pdc.h>            /* for iodc_call() proto and friends */
 
 static DEFINE_SPINLOCK(pdc_console_lock);
@@ -104,7 +105,7 @@ static int pdc_console_tty_open(struct tty_struct *tty, struct file *filp)
 
 static void pdc_console_tty_close(struct tty_struct *tty, struct file *filp)
 {
-        if (!tty->count) {
+        if (tty->count == 1) {
                 del_timer_sync(&pdc_console_timer);
                 tty_port_tty_set(&tty_port, NULL);
         }
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 0bb1d63907f8..4dc7b7942b4c 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -31,6 +31,7 @@
 #include <linux/delay.h>
 #include <linux/bitops.h>
 #include <linux/ftrace.h>
+#include <linux/cpu.h>
 
 #include <linux/atomic.h>
 #include <asm/current.h>
@@ -295,8 +296,13 @@ smp_cpu_init(int cpunum)
 
                 printk(KERN_CRIT "CPU#%d already initialized!\n", cpunum);
                 machine_halt();
-        }  
+        }
+
+        notify_cpu_starting(cpunum);
+
+        ipi_call_lock();
         set_cpu_online(cpunum, true);
+        ipi_call_unlock();
 
         /* Initialise the idle task for this CPU */
         atomic_inc(&init_mm.mm_count);
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 7c0774397b89..70e105d62423 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -29,6 +29,7 @@
 #include <asm/uaccess.h>
 #include <asm/io.h>
 #include <asm/irq.h>
+#include <asm/page.h>
 #include <asm/param.h>
 #include <asm/pdc.h>
 #include <asm/led.h>
diff --git a/arch/powerpc/boot/dts/fsl/pq3-mpic-message-B.dtsi b/arch/powerpc/boot/dts/fsl/pq3-mpic-message-B.dtsi
new file mode 100644
index 000000000000..1cf0b77b1efe
--- /dev/null
+++ b/arch/powerpc/boot/dts/fsl/pq3-mpic-message-B.dtsi
@@ -0,0 +1,43 @@
+/*
+ * PQ3 MPIC Message (Group B) device tree stub [ controller @ offset 0x42400 ]
+ *
+ * Copyright 2012 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Freescale Semiconductor nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+message@42400 {
+        compatible = "fsl,mpic-v3.1-msgr";
+        reg = <0x42400 0x200>;
+        interrupts = <
+                0xb4 2 0 0
+                0xb5 2 0 0
+                0xb6 2 0 0
+                0xb7 2 0 0>;
+};
diff --git a/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi b/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi
index fdedf7b1fe0f..71c30eb10056 100644
--- a/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi
+++ b/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi
@@ -53,6 +53,16 @@ timer@41100 {
                       3 0 3 0>;
 };
 
+message@41400 {
+        compatible = "fsl,mpic-v3.1-msgr";
+        reg = <0x41400 0x200>;
+        interrupts = <
+                0xb0 2 0 0
+                0xb1 2 0 0
+                0xb2 2 0 0
+                0xb3 2 0 0>;
+};
+
 msi@41600 {
         compatible = "fsl,mpic-msi";
         reg = <0x41600 0x80>;
diff --git a/arch/powerpc/boot/dts/p1020mbg-pc.dtsi b/arch/powerpc/boot/dts/p1020mbg-pc.dtsi
new file mode 100644
index 000000000000..a24699cfea9c
--- /dev/null
+++ b/arch/powerpc/boot/dts/p1020mbg-pc.dtsi
@@ -0,0 +1,151 @@
+/*
+ * P1020 MBG-PC Device Tree Source stub (no addresses or top-level ranges)
+ *
+ * Copyright 2012 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Freescale Semiconductor nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+&lbc {
+        nor@0,0 {
+                #address-cells = <1>;
+                #size-cells = <1>;
+                compatible = "cfi-flash";
+                reg = <0x0 0x0 0x4000000>;
+                bank-width = <2>;
+                device-width = <1>;
+
+                partition@0 {
+                        /* 128KB for DTB Image */
+                        reg = <0x0 0x00020000>;
+                        label = "NOR DTB Image";
+                };
+
+                partition@20000 {
+                        /* 3.875 MB for Linux Kernel Image */
+                        reg = <0x00020000 0x003e0000>;
+                        label = "NOR Linux Kernel Image";
+                };
+
+                partition@400000 {
+                        /* 58MB for Root file System */
+                        reg = <0x00400000 0x03a00000>;
+                        label = "NOR Root File System";
+                };
+
+                partition@3e00000 {
+                        /* This location must not be altered  */
+                        /* 1M for Vitesse 7385 Switch firmware */
+                        reg = <0x3e00000 0x00100000>;
+                        label = "NOR Vitesse-7385 Firmware";
+                        read-only;
+                };
+
+                partition@3f00000 {
+                        /* This location must not be altered  */
+                        /* 512KB for u-boot Bootloader Image */
+                        /* 512KB for u-boot Environment Variables */
+                        reg = <0x03f00000 0x00100000>;
+                        label = "NOR U-Boot Image";
+                        read-only;
+                };
+        };
+
+        L2switch@2,0 {
+                #address-cells = <1>;
+                #size-cells = <1>;
+                compatible = "vitesse-7385";
+                reg = <0x2 0x0 0x20000>;
+        };
+};
+
+&soc {
+        i2c@3000 {
+                rtc@68 {
+                        compatible = "dallas,ds1339";
+                        reg = <0x68>;
+                };
+        };
+
+        mdio@24000 {
+                phy0: ethernet-phy@0 {
+                        interrupts = <3 1 0 0>;
+                        reg = <0x0>;
+                };
+                phy1: ethernet-phy@1 {
+                        interrupts = <2 1 0 0>;
+                        reg = <0x1>;
+                };
+        };
+
+        mdio@25000 {
+                tbi1: tbi-phy@11 {
+                        reg = <0x11>;
+                        device_type = "tbi-phy";
+                };
+        };
+
+        mdio@26000 {
+                tbi2: tbi-phy@11 {
+                        reg = <0x11>;
+                        device_type = "tbi-phy";
+                };
+        };
+
+        enet0: ethernet@b0000 {
+                fixed-link = <1 1 1000 0 0>;
+                phy-connection-type = "rgmii-id";
+        };
+
+        enet1: ethernet@b1000 {
+                phy-handle = <&phy0>;
+                tbi-handle = <&tbi1>;
+                phy-connection-type = "sgmii";
+        };
+
+        enet2: ethernet@b2000 {
+                phy-handle = <&phy1>;
+                phy-connection-type = "rgmii-id";
+        };
+
+        usb@22000 {
+                phy_type = "ulpi";
+        };
+
+        /* USB2 is shared with localbus, so it must be disabled
+           by default. We can't put 'status = "disabled";' here
+           since U-Boot doesn't clear the status property when
+           it enables USB2. OTOH, U-Boot does create a new node
+           when there isn't any. So, just comment it out.
+        */
+        usb@23000 {
+                status = "disabled";
+                phy_type = "ulpi";
+        };
+};
diff --git a/arch/powerpc/boot/dts/p1020mbg-pc_32b.dts b/arch/powerpc/boot/dts/p1020mbg-pc_32b.dts
new file mode 100644
index 000000000000..ab8f076eae90
--- /dev/null
+++ b/arch/powerpc/boot/dts/p1020mbg-pc_32b.dts
@@ -0,0 +1,89 @@
+/*
+ * P1020 MBG-PC Device Tree Source (32-bit address map)
+ *
+ * Copyright 2012 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Freescale Semiconductor nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/include/ "fsl/p1020si-pre.dtsi"
+/ {
+        model = "fsl,P1020MBG-PC";
+        compatible = "fsl,P1020MBG-PC";
+
+        memory {
+                device_type = "memory";
+        };
+
+        lbc: localbus@ffe05000 {
+                reg = <0x0 0xffe05000 0x0 0x1000>;
+
+                /* NOR and L2 switch */
+                ranges = <0x0 0x0 0x0 0xec000000 0x04000000
+                          0x1 0x0 0x0 0xffa00000 0x00040000
+                          0x2 0x0 0x0 0xffb00000 0x00020000>;
+        };
+
+        soc: soc@ffe00000 {
+                ranges = <0x0 0x0 0xffe00000 0x100000>;
+        };
+
+        pci0: pcie@ffe09000 {
+                reg = <0x0 0xffe09000 0x0 0x1000>;
+                ranges = <0x2000000 0x0 0xe0000000 0x0 0xa0000000 0x0 0x20000000
+                          0x1000000 0x0 0x00000000 0x0 0xffc10000 0x0 0x10000>;
+                pcie@0 {
+                        ranges = <0x2000000 0x0 0xe0000000
+                                  0x2000000 0x0 0xe0000000
+                                  0x0 0x20000000
+
+                                  0x1000000 0x0 0x0
+                                  0x1000000 0x0 0x0
+                                  0x0 0x100000>;
+                };
+        };
+
+        pci1: pcie@ffe0a000 {
+                reg = <0x0 0xffe0a000 0x0 0x1000>;
+                ranges = <0x2000000 0x0 0xe0000000 0x0 0x80000000 0x0 0x20000000
+                          0x1000000 0x0 0x00000000 0x0 0xffc00000 0x0 0x10000>;
+                pcie@0 {
+                        ranges = <0x2000000 0x0 0xe0000000
+                                  0x2000000 0x0 0xe0000000
+                                  0x0 0x20000000
+
+                                  0x1000000 0x0 0x0
+                                  0x1000000 0x0 0x0
+                                  0x0 0x100000>;
+                };
+        };
+};
+
+/include/ "p1020mbg-pc.dtsi"
+/include/ "fsl/p1020si-post.dtsi"
diff --git a/arch/powerpc/boot/dts/p1020mbg-pc_36b.dts b/arch/powerpc/boot/dts/p1020mbg-pc_36b.dts
new file mode 100644
index 000000000000..9e9f401419b1
--- /dev/null
+++ b/arch/powerpc/boot/dts/p1020mbg-pc_36b.dts
@@ -0,0 +1,89 @@
+/*
+ * P1020 MBG-PC Device Tree Source (36-bit address map)
+ *
+ * Copyright 2012 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Freescale Semiconductor nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/include/ "fsl/p1020si-pre.dtsi"
+/ {
+        model = "fsl,P1020MBG-PC";
+        compatible = "fsl,P1020MBG-PC";
+
+        memory {
+                device_type = "memory";
+        };
+
+        lbc: localbus@fffe05000 {
+                reg = <0xf 0xffe05000 0x0 0x1000>;
+
+                /* NOR and L2 switch */
+                ranges = <0x0 0x0 0xf 0xec000000 0x04000000
+                          0x1 0x0 0xf 0xffa00000 0x00040000
+                          0x2 0x0 0xf 0xffb00000 0x00020000>;
+        };
+
+        soc: soc@fffe00000 {
+                ranges = <0x0 0xf 0xffe00000 0x100000>;
+        };
+
+        pci0: pcie@fffe09000 {
+                reg = <0xf 0xffe09000 0x0 0x1000>;
+                ranges = <0x2000000 0x0 0xe0000000 0xc 0x20000000 0x0 0x20000000
+                          0x1000000 0x0 0x00000000 0xf 0xffc10000 0x0 0x10000>;
+                pcie@0 {
+                        ranges = <0x2000000 0x0 0xe0000000
+                                  0x2000000 0x0 0xe0000000
+                                  0x0 0x20000000
+
+                                  0x1000000 0x0 0x0
+                                  0x1000000 0x0 0x0
+                                  0x0 0x100000>;
+                };
+        };
+
+        pci1: pcie@fffe0a000 {
+                reg = <0xf 0xffe0a000 0 0x1000>;
+                ranges = <0x2000000 0x0 0xe0000000 0xc 0x00000000 0x0 0x20000000
+                          0x1000000 0x0 0x00000000 0xf 0xffc00000 0x0 0x10000>;
+                pcie@0 {
+                        ranges = <0x2000000 0x0 0xe0000000
+                                  0x2000000 0x0 0xe0000000
+                                  0x0 0x20000000
+
+                                  0x1000000 0x0 0x0
+                                  0x1000000 0x0 0x0
+                                  0x0 0x100000>;
+                };
+        };
+};
+
+/include/ "p1020mbg-pc.dtsi"
+/include/ "fsl/p1020si-post.dtsi"
diff --git a/arch/powerpc/boot/dts/p1020utm-pc.dtsi b/arch/powerpc/boot/dts/p1020utm-pc.dtsi
new file mode 100644
index 000000000000..7ea85eabcc5c
--- /dev/null
+++ b/arch/powerpc/boot/dts/p1020utm-pc.dtsi
@@ -0,0 +1,140 @@
+/*
+ * P1020 UTM-PC Device Tree Source stub (no addresses or top-level ranges)
+ *
+ * Copyright 2012 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Freescale Semiconductor nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+&lbc {
+        nor@0,0 {
+                #address-cells = <1>;
+                #size-cells = <1>;
+                compatible = "cfi-flash";
+                reg = <0x0 0x0 0x2000000>;
+                bank-width = <2>;
+                device-width = <1>;
+
+                partition@0 {
+                        /* 256KB for DTB Image */
+                        reg = <0x0 0x00040000>;
+                        label = "NOR DTB Image";
+                };
+
+                partition@40000 {
+                        /* 3.75 MB for Linux Kernel Image */
+                        reg = <0x00040000 0x003c0000>;
+                        label = "NOR Linux Kernel Image";
+                };
+
+                partition@400000 {
+                        /* 27MB for Root file System */
+                        reg = <0x00400000 0x01b00000>;
+                        label = "NOR Root File System";
+                };
+
+                partition@1f00000 {
+                        /* This location must not be altered  */
+                        /* 512KB for u-boot Bootloader Image */
+                        /* 512KB for u-boot Environment Variables */
+                        reg = <0x01f00000 0x00100000>;
+                        label = "NOR U-Boot Image";
+                        read-only;
+                };
+        };
+};
+
+&soc {
+        i2c@3000 {
+                rtc@68 {
+                        compatible = "dallas,ds1339";
+                        reg = <0x68>;
+                };
+        };
+
+        mdio@24000 {
+                phy0: ethernet-phy@0 {
+                        interrupts = <3 1 0 0>;
+                        reg = <0x0>;
+                };
+                phy1: ethernet-phy@1 {
+                        interrupts = <2 1 0 0>;
+                        reg = <0x1>;
+                };
+                phy2: ethernet-phy@2 {
+                        interrupts = <1 1 0 0>;
+                        reg = <0x2>;
+                };
+        };
+
+        mdio@25000 {
+                tbi1: tbi-phy@11 {
+                        reg = <0x11>;
+                        device_type = "tbi-phy";
+                };
+        };
+
+        mdio@26000 {
+                tbi2: tbi-phy@11 {
+                        reg = <0x11>;
+                        device_type = "tbi-phy";
+                };
+        };
+
+        enet0: ethernet@b0000 {
+                phy-handle = <&phy2>;
+                phy-connection-type = "rgmii-id";
+        };
+
+        enet1: ethernet@b1000 {
+                phy-handle = <&phy0>;
+                tbi-handle = <&tbi1>;
+                phy-connection-type = "sgmii";
+        };
+
+        enet2: ethernet@b2000 {
+                phy-handle = <&phy1>;
+                phy-connection-type = "rgmii-id";
+        };
+
+        usb@22000 {
+                phy_type = "ulpi";
+        };
+
+        /* USB2 is shared with localbus, so it must be disabled
+           by default. We can't put 'status = "disabled";' here
+           since U-Boot doesn't clear the status property when
+           it enables USB2. OTOH, U-Boot does create a new node
+           when there isn't any. So, just comment it out.
+        */
+        usb@23000 {
+                status = "disabled";
+                phy_type = "ulpi";
+        };
+};
diff --git a/arch/powerpc/boot/dts/p1020utm-pc_32b.dts b/arch/powerpc/boot/dts/p1020utm-pc_32b.dts
new file mode 100644
index 000000000000..4bfdd8971cdb
--- /dev/null
+++ b/arch/powerpc/boot/dts/p1020utm-pc_32b.dts
@@ -0,0 +1,89 @@
+/*
+ * P1020 UTM-PC Device Tree Source (32-bit address map)
+ *
+ * Copyright 2012 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Freescale Semiconductor nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/include/ "fsl/p1020si-pre.dtsi"
+/ {
+        model = "fsl,P1020UTM-PC";
+        compatible = "fsl,P1020UTM-PC";
+
+        memory {
+                device_type = "memory";
+        };
+
+        lbc: localbus@ffe05000 {
+                reg = <0x0 0xffe05000 0x0 0x1000>;
+
+                /* NOR */
+                ranges = <0x0 0x0 0x0 0xec000000 0x02000000
+                          0x1 0x0 0x0 0xffa00000 0x00040000
+                          0x2 0x0 0x0 0xffb00000 0x00020000>;
+        };
+
+        soc: soc@ffe00000 {
+                ranges = <0x0 0x0 0xffe00000 0x100000>;
+        };
+
+        pci0: pcie@ffe09000 {
+                reg = <0x0 0xffe09000 0x0 0x1000>;
+                ranges = <0x2000000 0x0 0xe0000000 0x0 0xa0000000 0x0 0x20000000
+                          0x1000000 0x0 0x00000000 0x0 0xffc10000 0x0 0x10000>;
+                pcie@0 {
+                        ranges = <0x2000000 0x0 0xe0000000
+                                  0x2000000 0x0 0xe0000000
+                                  0x0 0x20000000
+
+                                  0x1000000 0x0 0x0
+                                  0x1000000 0x0 0x0
+                                  0x0 0x100000>;
+                };
+        };
+
+        pci1: pcie@ffe0a000 {
+                reg = <0x0 0xffe0a000 0x0 0x1000>;
+                ranges = <0x2000000 0x0 0xe0000000 0x0 0x80000000 0x0 0x20000000
+                          0x1000000 0x0 0x00000000 0x0 0xffc00000 0x0 0x10000>;
+                pcie@0 {
+                        ranges = <0x2000000 0x0 0xe0000000
+                                  0x2000000 0x0 0xe0000000
+                                  0x0 0x20000000
+
+                                  0x1000000 0x0 0x0
+                                  0x1000000 0x0 0x0
+                                  0x0 0x100000>;
+                };
+        };
+};
+
+/include/ "p1020utm-pc.dtsi"
+/include/ "fsl/p1020si-post.dtsi"
diff --git a/arch/powerpc/boot/dts/p1020utm-pc_36b.dts b/arch/powerpc/boot/dts/p1020utm-pc_36b.dts
new file mode 100644
index 000000000000..abec53557501
--- /dev/null
+++ b/arch/powerpc/boot/dts/p1020utm-pc_36b.dts
@@ -0,0 +1,89 @@
+/*
+ * P1020 UTM-PC Device Tree Source (36-bit address map)
+ *
+ * Copyright 2012 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Freescale Semiconductor nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/include/ "fsl/p1020si-pre.dtsi"
+/ {
+        model = "fsl,P1020UTM-PC";
+        compatible = "fsl,P1020UTM-PC";
+
+        memory {
+                device_type = "memory";
+        };
+
+        lbc: localbus@fffe05000 {
+                reg = <0xf 0xffe05000 0x0 0x1000>;
+
+                /* NOR */
+                ranges = <0x0 0x0 0xf 0xec000000 0x02000000
+                          0x1 0x0 0xf 0xffa00000 0x00040000
+                          0x2 0x0 0xf 0xffb00000 0x00020000>;
+        };
+
+        soc: soc@fffe00000 {
+                ranges = <0x0 0xf 0xffe00000 0x100000>;
+        };
+
+        pci0: pcie@fffe09000 {
+                reg = <0xf 0xffe09000 0x0 0x1000>;
+                ranges = <0x2000000 0x0 0xe0000000 0xc 0x20000000 0x0 0x20000000
+                          0x1000000 0x0 0x00000000 0xf 0xffc10000 0x0 0x10000>;
+                pcie@0 {
+                        ranges = <0x2000000 0x0 0xe0000000
+                                  0x2000000 0x0 0xe0000000
+                                  0x0 0x20000000
+
+                                  0x1000000 0x0 0x0
+                                  0x1000000 0x0 0x0
+                                  0x0 0x100000>;
+                };
+        };
+
+        pci1: pcie@fffe0a000 {
+                reg = <0xf 0xffe0a000 0 0x1000>;
+                ranges = <0x2000000 0x0 0xe0000000 0xc 0x00000000 0x0 0x20000000
+                          0x1000000 0x0 0x00000000 0xf 0xffc00000 0x0 0x10000>;
+                pcie@0 {
+                        ranges = <0x2000000 0x0 0xe0000000
+                                  0x2000000 0x0 0xe0000000
+                                  0x0 0x20000000
+
+                                  0x1000000 0x0 0x0
+                                  0x1000000 0x0 0x0
+                                  0x0 0x100000>;
+                };
+        };
+};
+
+/include/ "p1020utm-pc.dtsi"
+/include/ "fsl/p1020si-post.dtsi"
diff --git a/arch/powerpc/boot/dts/p2041rdb.dts b/arch/powerpc/boot/dts/p2041rdb.dts
index 4f957db01230..285213976a7f 100644
--- a/arch/powerpc/boot/dts/p2041rdb.dts
+++ b/arch/powerpc/boot/dts/p2041rdb.dts
@@ -135,7 +135,6 @@
                 reg = <0xf 0xfe200000 0 0x1000>;
                 ranges = <0x02000000 0 0xe0000000 0xc 0x00000000 0x0 0x20000000
                           0x01000000 0 0x00000000 0xf 0xf8000000 0x0 0x00010000>;
-                fsl,msi = <&msi0>;
                 pcie@0 {
                         ranges = <0x02000000 0 0xe0000000
                                   0x02000000 0 0xe0000000
@@ -151,7 +150,6 @@
                 reg = <0xf 0xfe201000 0 0x1000>;
                 ranges = <0x02000000 0x0 0xe0000000 0xc 0x20000000 0x0 0x20000000
                           0x01000000 0x0 0x00000000 0xf 0xf8010000 0x0 0x00010000>;
-                fsl,msi = <&msi1>;
                 pcie@0 {
                         ranges = <0x02000000 0 0xe0000000
                                   0x02000000 0 0xe0000000
@@ -167,7 +165,6 @@
                 reg = <0xf 0xfe202000 0 0x1000>;
                 ranges = <0x02000000 0 0xe0000000 0xc 0x40000000 0 0x20000000
                           0x01000000 0 0x00000000 0xf 0xf8020000 0 0x00010000>;
-                fsl,msi = <&msi2>;
                 pcie@0 {
                         ranges = <0x02000000 0 0xe0000000
                                   0x02000000 0 0xe0000000
diff --git a/arch/powerpc/boot/dts/p3041ds.dts b/arch/powerpc/boot/dts/p3041ds.dts
index f469145abaeb..22a215e94162 100644
--- a/arch/powerpc/boot/dts/p3041ds.dts
+++ b/arch/powerpc/boot/dts/p3041ds.dts
@@ -173,7 +173,6 @@
                 reg = <0xf 0xfe200000 0 0x1000>;
                 ranges = <0x02000000 0 0xe0000000 0xc 0x00000000 0x0 0x20000000
                           0x01000000 0 0x00000000 0xf 0xf8000000 0x0 0x00010000>;
-                fsl,msi = <&msi0>;
                 pcie@0 {
                         ranges = <0x02000000 0 0xe0000000
                                   0x02000000 0 0xe0000000
@@ -189,7 +188,6 @@
                 reg = <0xf 0xfe201000 0 0x1000>;
                 ranges = <0x02000000 0x0 0xe0000000 0xc 0x20000000 0x0 0x20000000
                           0x01000000 0x0 0x00000000 0xf 0xf8010000 0x0 0x00010000>;
-                fsl,msi = <&msi1>;
                 pcie@0 {
                         ranges = <0x02000000 0 0xe0000000
                                   0x02000000 0 0xe0000000
@@ -205,7 +203,6 @@
                 reg = <0xf 0xfe202000 0 0x1000>;
                 ranges = <0x02000000 0 0xe0000000 0xc 0x40000000 0 0x20000000
                           0x01000000 0 0x00000000 0xf 0xf8020000 0 0x00010000>;
-                fsl,msi = <&msi2>;
                 pcie@0 {
                         ranges = <0x02000000 0 0xe0000000
                                   0x02000000 0 0xe0000000
@@ -221,7 +218,6 @@
                 reg = <0xf 0xfe203000 0 0x1000>;
                 ranges = <0x02000000 0 0xe0000000 0xc 0x60000000 0 0x20000000
                           0x01000000 0 0x00000000 0xf 0xf8030000 0 0x00010000>;
-                fsl,msi = <&msi2>;
                 pcie@0 {
                         ranges = <0x02000000 0 0xe0000000
                                   0x02000000 0 0xe0000000
diff --git a/arch/powerpc/boot/dts/p3060qds.dts b/arch/powerpc/boot/dts/p3060qds.dts
index 529042e4b9a2..9ae875c8a211 100644
--- a/arch/powerpc/boot/dts/p3060qds.dts
+++ b/arch/powerpc/boot/dts/p3060qds.dts
@@ -212,7 +212,6 @@
                 reg = <0xf 0xfe200000 0 0x1000>;
                 ranges = <0x02000000 0 0xe0000000 0xc 0x00000000 0x0 0x20000000
                           0x01000000 0 0x00000000 0xf 0xf8000000 0x0 0x00010000>;
-                fsl,msi = <&msi0>;
                 pcie@0 {
                         ranges = <0x02000000 0 0xe0000000
                                   0x02000000 0 0xe0000000
@@ -228,7 +227,6 @@
                 reg = <0xf 0xfe201000 0 0x1000>;
                 ranges = <0x02000000 0x0 0xe0000000 0xc 0x20000000 0x0 0x20000000
                           0x01000000 0x0 0x00000000 0xf 0xf8010000 0x0 0x00010000>;
-                fsl,msi = <&msi1>;
                 pcie@0 {
                         ranges = <0x02000000 0 0xe0000000
                                   0x02000000 0 0xe0000000
diff --git a/arch/powerpc/boot/dts/p4080ds.dts b/arch/powerpc/boot/dts/p4080ds.dts
index 6d60e54e50a0..3e204609d02e 100644
--- a/arch/powerpc/boot/dts/p4080ds.dts
+++ b/arch/powerpc/boot/dts/p4080ds.dts
@@ -141,7 +141,6 @@
                 reg = <0xf 0xfe200000 0 0x1000>;
                 ranges = <0x02000000 0 0xe0000000 0xc 0x00000000 0x0 0x20000000
                           0x01000000 0 0x00000000 0xf 0xf8000000 0x0 0x00010000>;
-                fsl,msi = <&msi0>;
                 pcie@0 {
                         ranges = <0x02000000 0 0xe0000000
                                   0x02000000 0 0xe0000000
@@ -157,7 +156,6 @@
                 reg = <0xf 0xfe201000 0 0x1000>;
                 ranges = <0x02000000 0x0 0xe0000000 0xc 0x20000000 0x0 0x20000000
                           0x01000000 0x0 0x00000000 0xf 0xf8010000 0x0 0x00010000>;
-                fsl,msi = <&msi1>;
                 pcie@0 {
                         ranges = <0x02000000 0 0xe0000000
                                   0x02000000 0 0xe0000000
@@ -173,7 +171,6 @@
                 reg = <0xf 0xfe202000 0 0x1000>;
                 ranges = <0x02000000 0 0xe0000000 0xc 0x40000000 0 0x20000000
                           0x01000000 0 0x00000000 0xf 0xf8020000 0 0x00010000>;
-                fsl,msi = <&msi2>;
                 pcie@0 {
                         ranges = <0x02000000 0 0xe0000000
                                   0x02000000 0 0xe0000000
diff --git a/arch/powerpc/boot/dts/p5020ds.dts b/arch/powerpc/boot/dts/p5020ds.dts
index 1c250684c902..27c07ed6adc1 100644
--- a/arch/powerpc/boot/dts/p5020ds.dts
+++ b/arch/powerpc/boot/dts/p5020ds.dts
@@ -173,7 +173,6 @@
                 reg = <0xf 0xfe200000 0 0x1000>;
                 ranges = <0x02000000 0 0xe0000000 0xc 0x00000000 0x0 0x20000000
                           0x01000000 0 0x00000000 0xf 0xf8000000 0x0 0x00010000>;
-                fsl,msi = <&msi0>;
                 pcie@0 {
                         ranges = <0x02000000 0 0xe0000000
                                   0x02000000 0 0xe0000000
@@ -189,7 +188,6 @@
                 reg = <0xf 0xfe201000 0 0x1000>;
                 ranges = <0x02000000 0x0 0xe0000000 0xc 0x20000000 0x0 0x20000000
                           0x01000000 0x0 0x00000000 0xf 0xf8010000 0x0 0x00010000>;
-                fsl,msi = <&msi1>;
                 pcie@0 {
                         ranges = <0x02000000 0 0xe0000000
                                   0x02000000 0 0xe0000000
@@ -205,7 +203,6 @@
                 reg = <0xf 0xfe202000 0 0x1000>;
                 ranges = <0x02000000 0 0xe0000000 0xc 0x40000000 0 0x20000000
                           0x01000000 0 0x00000000 0xf 0xf8020000 0 0x00010000>;
-                fsl,msi = <&msi2>;
                 pcie@0 {
                         ranges = <0x02000000 0 0xe0000000
                                   0x02000000 0 0xe0000000
@@ -221,7 +218,6 @@
                 reg = <0xf 0xfe203000 0 0x1000>;
                 ranges = <0x02000000 0 0xe0000000 0xc 0x60000000 0 0x20000000
                           0x01000000 0 0x00000000 0xf 0xf8030000 0 0x00010000>;
-                fsl,msi = <&msi2>;
                 pcie@0 {
                         ranges = <0x02000000 0 0xe0000000
                                   0x02000000 0 0xe0000000
diff --git a/arch/powerpc/configs/corenet32_smp_defconfig b/arch/powerpc/configs/corenet32_smp_defconfig
index f8aef205d222..91db656294e8 100644
--- a/arch/powerpc/configs/corenet32_smp_defconfig
+++ b/arch/powerpc/configs/corenet32_smp_defconfig
@@ -116,6 +116,7 @@ CONFIG_SERIAL_8250_RSA=y
 CONFIG_HW_RANDOM=y
 CONFIG_NVRAM=y
 CONFIG_I2C=y
+CONFIG_I2C_CHARDEV=y
 CONFIG_I2C_MPC=y
 CONFIG_SPI=y
 CONFIG_SPI_GPIO=y
diff --git a/arch/powerpc/configs/corenet64_smp_defconfig b/arch/powerpc/configs/corenet64_smp_defconfig
index 82b13bfcf3c0..6798343580f0 100644
--- a/arch/powerpc/configs/corenet64_smp_defconfig
+++ b/arch/powerpc/configs/corenet64_smp_defconfig
@@ -71,6 +71,8 @@ CONFIG_SERIAL_8250_MANY_PORTS=y
 CONFIG_SERIAL_8250_DETECT_IRQ=y
 CONFIG_SERIAL_8250_RSA=y
 CONFIG_I2C=y
+CONFIG_I2C_CHARDEV=y
+CONFIG_I2C_MPC=y
 # CONFIG_HWMON is not set
 CONFIG_VIDEO_OUTPUT_CONTROL=y
 # CONFIG_HID_SUPPORT is not set
diff --git a/arch/powerpc/configs/mpc85xx_defconfig b/arch/powerpc/configs/mpc85xx_defconfig
index cc87a8441566..d6b6df5e8743 100644
--- a/arch/powerpc/configs/mpc85xx_defconfig
+++ b/arch/powerpc/configs/mpc85xx_defconfig
@@ -117,6 +117,7 @@ CONFIG_SERIAL_8250_RSA=y
 CONFIG_SERIAL_QE=m
 CONFIG_NVRAM=y
 CONFIG_I2C=y
+CONFIG_I2C_CHARDEV=y
 CONFIG_I2C_CPM=m
 CONFIG_I2C_MPC=y
 CONFIG_SPI=y
diff --git a/arch/powerpc/configs/mpc85xx_smp_defconfig b/arch/powerpc/configs/mpc85xx_smp_defconfig
index 48d6682f2434..5b0e2926becd 100644
--- a/arch/powerpc/configs/mpc85xx_smp_defconfig
+++ b/arch/powerpc/configs/mpc85xx_smp_defconfig
@@ -119,6 +119,7 @@ CONFIG_SERIAL_8250_RSA=y
 CONFIG_SERIAL_QE=m
 CONFIG_NVRAM=y
 CONFIG_I2C=y
+CONFIG_I2C_CHARDEV=y
 CONFIG_I2C_CPM=m
 CONFIG_I2C_MPC=y
 CONFIG_SPI=y
diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index dd70fac57ec8..62678e365ca0 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -22,9 +22,11 @@
 
 /* Some dma direct funcs must be visible for use in other dma_ops */
 extern void *dma_direct_alloc_coherent(struct device *dev, size_t size,
-                                       dma_addr_t *dma_handle, gfp_t flag);
+                                       dma_addr_t *dma_handle, gfp_t flag,
+                                       struct dma_attrs *attrs);
 extern void dma_direct_free_coherent(struct device *dev, size_t size,
-                                     void *vaddr, dma_addr_t dma_handle);
+                                     void *vaddr, dma_addr_t dma_handle,
+                                     struct dma_attrs *attrs);
 
 
 #ifdef CONFIG_NOT_COHERENT_CACHE
@@ -130,23 +132,29 @@ static inline int dma_supported(struct device *dev, u64 mask)
 
 extern int dma_set_mask(struct device *dev, u64 dma_mask);
 
-static inline void *dma_alloc_coherent(struct device *dev, size_t size,
-                                       dma_addr_t *dma_handle, gfp_t flag)
+#define dma_alloc_coherent(d,s,h,f)     dma_alloc_attrs(d,s,h,f,NULL)
+
+static inline void *dma_alloc_attrs(struct device *dev, size_t size,
+                                    dma_addr_t *dma_handle, gfp_t flag,
+                                    struct dma_attrs *attrs)
 {
         struct dma_map_ops *dma_ops = get_dma_ops(dev);
         void *cpu_addr;
 
         BUG_ON(!dma_ops);
 
-        cpu_addr = dma_ops->alloc_coherent(dev, size, dma_handle, flag);
+        cpu_addr = dma_ops->alloc(dev, size, dma_handle, flag, attrs);
 
         debug_dma_alloc_coherent(dev, size, *dma_handle, cpu_addr);
 
         return cpu_addr;
 }
 
-static inline void dma_free_coherent(struct device *dev, size_t size,
-                                     void *cpu_addr, dma_addr_t dma_handle)
+#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL)
+
+static inline void dma_free_attrs(struct device *dev, size_t size,
+                                  void *cpu_addr, dma_addr_t dma_handle,
+                                  struct dma_attrs *attrs)
 {
         struct dma_map_ops *dma_ops = get_dma_ops(dev);
 
@@ -154,7 +162,7 @@ static inline void dma_free_coherent(struct device *dev, size_t size,
 
         debug_dma_free_coherent(dev, size, cpu_addr, dma_handle);
 
-        dma_ops->free_coherent(dev, size, cpu_addr, dma_handle);
+        dma_ops->free(dev, size, cpu_addr, dma_handle, attrs);
 }
 
 static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
diff --git a/arch/powerpc/include/asm/epapr_hcalls.h b/arch/powerpc/include/asm/epapr_hcalls.h
index f3b0c2cc9fea..976835d8f22e 100644
--- a/arch/powerpc/include/asm/epapr_hcalls.h
+++ b/arch/powerpc/include/asm/epapr_hcalls.h
@@ -134,10 +134,15 @@
  * whether they will be clobbered.
  *
  * Note that r11 can be used as an output parameter.
+ *
+ * The "memory" clobber is only necessary for hcalls where the Hypervisor
+ * will read or write guest memory. However, we add it to all hcalls because
+ * the impact is minimal, and we want to ensure that it's present for the
+ * hcalls that need it.
 */
 
 /* List of common clobbered registers.  Do not use this macro. */
-#define EV_HCALL_CLOBBERS "r0", "r12", "xer", "ctr", "lr", "cc"
+#define EV_HCALL_CLOBBERS "r0", "r12", "xer", "ctr", "lr", "cc", "memory"
 
 #define EV_HCALL_CLOBBERS8 EV_HCALL_CLOBBERS
 #define EV_HCALL_CLOBBERS7 EV_HCALL_CLOBBERS8, "r10"
diff --git a/arch/powerpc/include/asm/exception-64s.h b/arch/powerpc/include/asm/exception-64s.h
index 548da3aa0a30..d58fc4e4149c 100644
--- a/arch/powerpc/include/asm/exception-64s.h
+++ b/arch/powerpc/include/asm/exception-64s.h
@@ -288,13 +288,6 @@ label##_hv:								\
 /* Exception addition: Hard disable interrupts */
 #define DISABLE_INTS    SOFT_DISABLE_INTS(r10,r11)
 
-/* Exception addition: Keep interrupt state */
-#define ENABLE_INTS                             \
-        ld      r11,PACAKMSR(r13);              \
-        ld      r12,_MSR(r1);                   \
-        rlwimi  r11,r12,0,MSR_EE;               \
-        mtmsrd  r11,1
-
 #define ADD_NVGPRS                              \
         bl      .save_nvgprs
 
diff --git a/arch/powerpc/include/asm/fsl_guts.h b/arch/powerpc/include/asm/fsl_guts.h
index ce04530d2000..aa4c488589ce 100644
--- a/arch/powerpc/include/asm/fsl_guts.h
+++ b/arch/powerpc/include/asm/fsl_guts.h
@@ -16,15 +16,6 @@
 #define __ASM_POWERPC_FSL_GUTS_H__
 #ifdef __KERNEL__
 
-/*
- * These #ifdefs are safe because it's not possible to build a kernel that
- * runs on e500 and e600 cores.
- */
-
-#if !defined(CONFIG_PPC_85xx) && !defined(CONFIG_PPC_86xx)
-#error Only 85xx and 86xx SOCs are supported
-#endif
-
 /**
  * Global Utility Registers.
  *
@@ -36,11 +27,7 @@
  * different names.  In these cases, one name is chosen to avoid extraneous
  * #ifdefs.
  */
-#ifdef CONFIG_PPC_85xx
-struct ccsr_guts_85xx {
-#else
-struct ccsr_guts_86xx {
-#endif
+struct ccsr_guts {
         __be32  porpllsr;       /* 0x.0000 - POR PLL Ratio Status Register */
         __be32  porbmsr;        /* 0x.0004 - POR Boot Mode Status Register */
         __be32  porimpscr;      /* 0x.0008 - POR I/O Impedance Status and Control Register */
@@ -77,11 +64,8 @@ struct ccsr_guts_86xx {
         u8      res0a8[0xb0 - 0xa8];
         __be32  rstcr;          /* 0x.00b0 - Reset Control Register */
         u8      res0b4[0xc0 - 0xb4];
-#ifdef CONFIG_PPC_85xx
-        __be32  iovselsr;       /* 0x.00c0 - I/O voltage select status register */
-#else
-        __be32  elbcvselcr;     /* 0x.00c0 - eLBC Voltage Select Ctrl Reg */
-#endif
+        __be32  iovselsr;       /* 0x.00c0 - I/O voltage select status register
+                                             Called 'elbcvselcr' on 86xx SOCs */
         u8      res0c4[0x224 - 0xc4];
         __be32  iodelay1;       /* 0x.0224 - IO delay control register 1 */
         __be32  iodelay2;       /* 0x.0228 - IO delay control register 2 */
@@ -136,7 +120,7 @@ struct ccsr_guts_86xx {
  * ch: The channel on the DMA controller (0, 1, 2, or 3)
  * device: The device to set as the source (CCSR_GUTS_DMACR_DEV_xx)
  */
-static inline void guts_set_dmacr(struct ccsr_guts_86xx __iomem *guts,
+static inline void guts_set_dmacr(struct ccsr_guts __iomem *guts,
         unsigned int co, unsigned int ch, unsigned int device)
 {
         unsigned int shift = 16 + (8 * (1 - co) + 2 * (3 - ch));
@@ -172,7 +156,7 @@ static inline void guts_set_dmacr(struct ccsr_guts_86xx __iomem *guts,
  * ch: The channel on the DMA controller (0, 1, 2, or 3)
  * value: the new value for the bit (0 or 1)
  */
-static inline void guts_set_pmuxcr_dma(struct ccsr_guts_86xx __iomem *guts,
+static inline void guts_set_pmuxcr_dma(struct ccsr_guts __iomem *guts,
         unsigned int co, unsigned int ch, unsigned int value)
 {
         if ((ch == 0) || (ch == 3)) {
diff --git a/arch/powerpc/include/asm/irq.h b/arch/powerpc/include/asm/irq.h
index cf417e510736..0e40843a1c6e 100644
--- a/arch/powerpc/include/asm/irq.h
+++ b/arch/powerpc/include/asm/irq.h
@@ -18,10 +18,6 @@
 #include <linux/atomic.h>
 
 
-/* Define a way to iterate across irqs. */
-#define for_each_irq(i) \
-        for ((i) = 0; (i) < NR_IRQS; ++(i))
-
 extern atomic_t ppc_n_lost_interrupts;
 
 /* This number is used when no interrupt has been assigned */
@@ -33,8 +29,6 @@ extern atomic_t ppc_n_lost_interrupts;
 /* Same thing, used by the generic IRQ code */
 #define NR_IRQS_LEGACY          NUM_ISA_INTERRUPTS
 
-struct irq_data;
-extern irq_hw_number_t irqd_to_hwirq(struct irq_data *d);
 extern irq_hw_number_t virq_to_hw(unsigned int virq);
 
 /**
diff --git a/arch/powerpc/include/asm/mpic.h b/arch/powerpc/include/asm/mpic.h
index c65b9294376e..c9f698a994be 100644
--- a/arch/powerpc/include/asm/mpic.h
+++ b/arch/powerpc/include/asm/mpic.h
@@ -275,9 +275,6 @@ struct mpic
         unsigned int            isu_mask;
         /* Number of sources */
         unsigned int            num_sources;
-        /* default senses array */
-        unsigned char           *senses;
-        unsigned int            senses_count;
 
         /* vector numbers used for internal sources (ipi/timers) */
         unsigned int            ipi_vecs[4];
@@ -415,21 +412,6 @@ extern struct mpic *mpic_alloc(struct device_node *node,
 extern void mpic_assign_isu(struct mpic *mpic, unsigned int isu_num,
                             phys_addr_t phys_addr);
 
-/* Set default sense codes
- *
- * @mpic:       controller
- * @senses:     array of sense codes
- * @count:      size of above array
- *
- * Optionally provide an array (indexed on hardware interrupt numbers
- * for this MPIC) of default sense codes for the chip. Those are linux
- * sense codes IRQ_TYPE_*
- *
- * The driver gets ownership of the pointer, don't dispose of it or
- * anything like that. __init only.
- */
-extern void mpic_set_default_senses(struct mpic *mpic, u8 *senses, int count);
-
 
 /* Initialize the controller. After this has been called, none of the above
  * should be called again for this mpic
diff --git a/arch/powerpc/include/asm/mpic_msgr.h b/arch/powerpc/include/asm/mpic_msgr.h
index 3ec37dc9003e..326d33ca55cd 100644
--- a/arch/powerpc/include/asm/mpic_msgr.h
+++ b/arch/powerpc/include/asm/mpic_msgr.h
@@ -13,6 +13,7 @@
 
 #include <linux/types.h>
 #include <linux/spinlock.h>
+#include <asm/smp.h>
 
 struct mpic_msgr {
         u32 __iomem *base;
diff --git a/arch/powerpc/include/asm/reg_booke.h b/arch/powerpc/include/asm/reg_booke.h
index b86faa9107da..8a97aa7289d3 100644
--- a/arch/powerpc/include/asm/reg_booke.h
+++ b/arch/powerpc/include/asm/reg_booke.h
@@ -15,11 +15,6 @@
 #ifndef __ASM_POWERPC_REG_BOOKE_H__
 #define __ASM_POWERPC_REG_BOOKE_H__
 
-#ifdef CONFIG_BOOKE_WDT
-extern u32 booke_wdt_enabled;
-extern u32 booke_wdt_period;
-#endif /* CONFIG_BOOKE_WDT */
-
 /* Machine State Register (MSR) Fields */
 #define MSR_GS          (1<<28) /* Guest state */
 #define MSR_UCLE        (1<<26) /* User-mode cache lock enable */
diff --git a/arch/powerpc/kernel/dma-iommu.c b/arch/powerpc/kernel/dma-iommu.c
index 3f6464b4d970..bcfdcd22c766 100644
--- a/arch/powerpc/kernel/dma-iommu.c
+++ b/arch/powerpc/kernel/dma-iommu.c
@@ -17,7 +17,8 @@
  * to the dma address (mapping) of the first page.
  */
 static void *dma_iommu_alloc_coherent(struct device *dev, size_t size,
-                                      dma_addr_t *dma_handle, gfp_t flag)
+                                      dma_addr_t *dma_handle, gfp_t flag,
+                                      struct dma_attrs *attrs)
 {
         return iommu_alloc_coherent(dev, get_iommu_table_base(dev), size,
                                     dma_handle, dev->coherent_dma_mask, flag,
@@ -25,7 +26,8 @@ static void *dma_iommu_alloc_coherent(struct device *dev, size_t size,
 }
 
 static void dma_iommu_free_coherent(struct device *dev, size_t size,
-                                    void *vaddr, dma_addr_t dma_handle)
+                                    void *vaddr, dma_addr_t dma_handle,
+                                    struct dma_attrs *attrs)
 {
         iommu_free_coherent(get_iommu_table_base(dev), size, vaddr, dma_handle);
 }
@@ -105,8 +107,8 @@ static u64 dma_iommu_get_required_mask(struct device *dev)
 }
 
 struct dma_map_ops dma_iommu_ops = {
-        .alloc_coherent         = dma_iommu_alloc_coherent,
-        .free_coherent          = dma_iommu_free_coherent,
+        .alloc                  = dma_iommu_alloc_coherent,
+        .free                   = dma_iommu_free_coherent,
         .map_sg                 = dma_iommu_map_sg,
         .unmap_sg               = dma_iommu_unmap_sg,
         .dma_supported          = dma_iommu_dma_supported,
diff --git a/arch/powerpc/kernel/dma-swiotlb.c b/arch/powerpc/kernel/dma-swiotlb.c
index 1ebc9189aada..4ab88dafb235 100644
--- a/arch/powerpc/kernel/dma-swiotlb.c
+++ b/arch/powerpc/kernel/dma-swiotlb.c
@@ -47,8 +47,8 @@ static u64 swiotlb_powerpc_get_required(struct device *dev)
  * for everything else.
  */
 struct dma_map_ops swiotlb_dma_ops = {
-        .alloc_coherent = dma_direct_alloc_coherent,
-        .free_coherent = dma_direct_free_coherent,
+        .alloc = dma_direct_alloc_coherent,
+        .free = dma_direct_free_coherent,
         .map_sg = swiotlb_map_sg_attrs,
         .unmap_sg = swiotlb_unmap_sg_attrs,
         .dma_supported = swiotlb_dma_supported,
diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index 7d0233c12ee3..b1ec983dcec8 100644
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -26,7 +26,8 @@
 
 
 void *dma_direct_alloc_coherent(struct device *dev, size_t size,
-                                dma_addr_t *dma_handle, gfp_t flag)
+                                dma_addr_t *dma_handle, gfp_t flag,
+                                struct dma_attrs *attrs)
 {
         void *ret;
 #ifdef CONFIG_NOT_COHERENT_CACHE
@@ -54,7 +55,8 @@ void *dma_direct_alloc_coherent(struct device *dev, size_t size,
 }
 
 void dma_direct_free_coherent(struct device *dev, size_t size,
-                              void *vaddr, dma_addr_t dma_handle)
+                              void *vaddr, dma_addr_t dma_handle,
+                              struct dma_attrs *attrs)
 {
 #ifdef CONFIG_NOT_COHERENT_CACHE
         __dma_free_coherent(size, vaddr);
@@ -150,8 +152,8 @@ static inline void dma_direct_sync_single(struct device *dev,
 #endif
 
 struct dma_map_ops dma_direct_ops = {
-        .alloc_coherent                 = dma_direct_alloc_coherent,
-        .free_coherent                  = dma_direct_free_coherent,
+        .alloc                          = dma_direct_alloc_coherent,
+        .free                           = dma_direct_free_coherent,
         .map_sg                         = dma_direct_map_sg,
         .unmap_sg                       = dma_direct_unmap_sg,
         .dma_supported                  = dma_direct_dma_supported,
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
index 3e57a00b8cba..ba3aeb4bc06a 100644
--- a/arch/powerpc/kernel/entry_32.S
+++ b/arch/powerpc/kernel/entry_32.S
@@ -206,40 +206,43 @@ reenable_mmu:				/* re-enable mmu so we can */
         andi.   r10,r10,MSR_EE          /* Did EE change? */
         beq     1f
 
-        /* Save handler and return address into the 2 unused words
-         * of the STACK_FRAME_OVERHEAD (sneak sneak sneak). Everything
-         * else can be recovered from the pt_regs except r3 which for
-         * normal interrupts has been set to pt_regs and for syscalls
-         * is an argument, so we temporarily use ORIG_GPR3 to save it
-         */
-        stw     r9,8(r1)
-        stw     r11,12(r1)
-        stw     r3,ORIG_GPR3(r1)
         /*
          * The trace_hardirqs_off will use CALLER_ADDR0 and CALLER_ADDR1.
          * If from user mode there is only one stack frame on the stack, and
          * accessing CALLER_ADDR1 will cause oops. So we need create a dummy
          * stack frame to make trace_hardirqs_off happy.
+         *
+         * This is handy because we also need to save a bunch of GPRs,
+         * r3 can be different from GPR3(r1) at this point, r9 and r11
+         * contains the old MSR and handler address respectively,
+         * r4 & r5 can contain page fault arguments that need to be passed
+         * along as well. r12, CCR, CTR, XER etc... are left clobbered as
+         * they aren't useful past this point (aren't syscall arguments),
+         * the rest is restored from the exception frame.
          */
+        stwu    r1,-32(r1)
+        stw     r9,8(r1)
+        stw     r11,12(r1)
+        stw     r3,16(r1)
+        stw     r4,20(r1)
+        stw     r5,24(r1)
         andi.   r12,r12,MSR_PR
-        beq     11f
-        stwu    r1,-16(r1)
+        b       11f
         bl      trace_hardirqs_off
-        addi    r1,r1,16
         b       12f
-
 11:
         bl      trace_hardirqs_off
 12:
+        lwz     r5,24(r1)
+        lwz     r4,20(r1)
+        lwz     r3,16(r1)
+        lwz     r11,12(r1)
+        lwz     r9,8(r1)
+        addi    r1,r1,32
         lwz     r0,GPR0(r1)
-        lwz     r3,ORIG_GPR3(r1)
-        lwz     r4,GPR4(r1)
-        lwz     r5,GPR5(r1)
         lwz     r6,GPR6(r1)
         lwz     r7,GPR7(r1)
         lwz     r8,GPR8(r1)
-        lwz     r9,8(r1)
-        lwz     r11,12(r1)
 1:      mtctr   r11
         mtlr    r9
         bctr                            /* jump to handler */
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index f8a7a1a1a9f4..ef2074c3e906 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -588,23 +588,19 @@ _GLOBAL(ret_from_except_lite)
 fast_exc_return_irq:
 restore:
         /*
-         * This is the main kernel exit path, we first check if we
-         * have to change our interrupt state.
+         * This is the main kernel exit path. First we check if we
+         * are about to re-enable interrupts
          */
         ld      r5,SOFTE(r1)
         lbz     r6,PACASOFTIRQEN(r13)
-        cmpwi   cr1,r5,0
-        cmpw    cr0,r5,r6
-        beq     cr0,4f
+        cmpwi   cr0,r5,0
+        beq     restore_irq_off
 
-        /* We do, handle disable first, which is easy */
-        bne     cr1,3f;
-        li      r0,0
-        stb     r0,PACASOFTIRQEN(r13);
-        TRACE_DISABLE_INTS
-        b       4f
+        /* We are enabling, were we already enabled ? Yes, just return */
+        cmpwi   cr0,r6,1
+        beq     cr0,do_restore
 
-3:      /*
+        /*
          * We are about to soft-enable interrupts (we are hard disabled
          * at this point). We check if there's anything that needs to
          * be replayed first.
@@ -626,7 +622,7 @@ restore_no_replay:
         /*
          * Final return path. BookE is handled in a different file
          */
-4:
+do_restore:
 #ifdef CONFIG_PPC_BOOK3E
         b       .exception_return_book3e
 #else
@@ -700,6 +696,25 @@ fast_exception_return:
 #endif /* CONFIG_PPC_BOOK3E */
 
         /*
+         * We are returning to a context with interrupts soft disabled.
+         *
+         * However, we may also about to hard enable, so we need to
+         * make sure that in this case, we also clear PACA_IRQ_HARD_DIS
+         * or that bit can get out of sync and bad things will happen
+         */
+restore_irq_off:
+        ld      r3,_MSR(r1)
+        lbz     r7,PACAIRQHAPPENED(r13)
+        andi.   r0,r3,MSR_EE
+        beq     1f
+        rlwinm  r7,r7,0,~PACA_IRQ_HARD_DIS
+        stb     r7,PACAIRQHAPPENED(r13)
+1:      li      r0,0
+        stb     r0,PACASOFTIRQEN(r13);
+        TRACE_DISABLE_INTS
+        b       do_restore
+
+        /*
          * Something did happen, check if a re-emit is needed
          * (this also clears paca->irq_happened)
          */
@@ -748,6 +763,9 @@ restore_check_irq_replay:
 #endif /* CONFIG_PPC_BOOK3E */
 1:      b       .ret_from_except /* What else to do here ? */
  
+
+
+3:
 do_work:
 #ifdef CONFIG_PREEMPT
         andi.   r0,r3,MSR_PR    /* Returning to user mode? */
@@ -767,16 +785,6 @@ do_work:
         SOFT_DISABLE_INTS(r3,r4)
 1:      bl      .preempt_schedule_irq
 
-        /* Hard-disable interrupts again (and update PACA) */
-#ifdef CONFIG_PPC_BOOK3E
-        wrteei  0
-#else
-        ld      r10,PACAKMSR(r13) /* Get kernel MSR without EE */
-        mtmsrd  r10,1
-#endif /* CONFIG_PPC_BOOK3E */
-        li      r0,PACA_IRQ_HARD_DIS
-        stb     r0,PACAIRQHAPPENED(r13)
-
         /* Re-test flags and eventually loop */
         clrrdi  r9,r1,THREAD_SHIFT
         ld      r4,TI_FLAGS(r9)
@@ -787,14 +795,6 @@ do_work:
 user_work:
 #endif /* CONFIG_PREEMPT */
 
-        /* Enable interrupts */
-#ifdef CONFIG_PPC_BOOK3E
-        wrteei  1
-#else
-        ori     r10,r10,MSR_EE
-        mtmsrd  r10,1
-#endif /* CONFIG_PPC_BOOK3E */
-
         andi.   r0,r4,_TIF_NEED_RESCHED
         beq     1f
         bl      .restore_interrupts
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index cb705fdbb458..8f880bc77c56 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -768,8 +768,8 @@ alignment_common:
         std     r3,_DAR(r1)
         std     r4,_DSISR(r1)
         bl      .save_nvgprs
+        DISABLE_INTS
         addi    r3,r1,STACK_FRAME_OVERHEAD
-        ENABLE_INTS
         bl      .alignment_exception
         b       .ret_from_except
 
diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc/kernel/fadump.c
index cfe7a38708c3..18bdf74fa164 100644
--- a/arch/powerpc/kernel/fadump.c
+++ b/arch/powerpc/kernel/fadump.c
@@ -40,6 +40,8 @@
 #include <asm/prom.h>
 #include <asm/rtas.h>
 #include <asm/fadump.h>
+#include <asm/debug.h>
+#include <asm/setup.h>
 
 static struct fw_dump fw_dump;
 static struct fadump_mem_struct fdm;
diff --git a/arch/powerpc/kernel/ibmebus.c b/arch/powerpc/kernel/ibmebus.c
index 79bb282e6501..b01d14eeca8d 100644
--- a/arch/powerpc/kernel/ibmebus.c
+++ b/arch/powerpc/kernel/ibmebus.c
@@ -65,7 +65,8 @@ static struct of_device_id __initdata ibmebus_matches[] = {
 static void *ibmebus_alloc_coherent(struct device *dev,
                                     size_t size,
                                     dma_addr_t *dma_handle,
-                                    gfp_t flag)
+                                    gfp_t flag,
+                                    struct dma_attrs *attrs)
 {
         void *mem;
 
@@ -77,7 +78,8 @@ static void *ibmebus_alloc_coherent(struct device *dev,
 
 static void ibmebus_free_coherent(struct device *dev,
                                   size_t size, void *vaddr,
-                                  dma_addr_t dma_handle)
+                                  dma_addr_t dma_handle,
+                                  struct dma_attrs *attrs)
 {
         kfree(vaddr);
 }
@@ -136,8 +138,8 @@ static u64 ibmebus_dma_get_required_mask(struct device *dev)
 }
 
 static struct dma_map_ops ibmebus_dma_ops = {
-        .alloc_coherent     = ibmebus_alloc_coherent,
-        .free_coherent      = ibmebus_free_coherent,
+        .alloc              = ibmebus_alloc_coherent,
+        .free               = ibmebus_free_coherent,
         .map_sg             = ibmebus_map_sg,
         .unmap_sg           = ibmebus_unmap_sg,
         .dma_supported      = ibmebus_dma_supported,
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 243dbabfe74d..641da9e868ce 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -229,6 +229,19 @@ notrace void arch_local_irq_restore(unsigned long en)
          */
         if (unlikely(irq_happened != PACA_IRQ_HARD_DIS))
                 __hard_irq_disable();
+#ifdef CONFIG_TRACE_IRQFLAG
+        else {
+                /*
+                 * We should already be hard disabled here. We had bugs
+                 * where that wasn't the case so let's dbl check it and
+                 * warn if we are wrong. Only do that when IRQ tracing
+                 * is enabled as mfmsr() can be costly.
+                 */
+                if (WARN_ON(mfmsr() & MSR_EE))
+                        __hard_irq_disable();
+        }
+#endif /* CONFIG_TRACE_IRQFLAG */
+
         set_soft_enabled(0);
 
         /*
@@ -260,11 +273,17 @@ EXPORT_SYMBOL(arch_local_irq_restore);
  * if they are currently disabled. This is typically called before
  * schedule() or do_signal() when returning to userspace. We do it
  * in C to avoid the burden of dealing with lockdep etc...
+ *
+ * NOTE: This is called with interrupts hard disabled but not marked
+ * as such in paca->irq_happened, so we need to resync this.
  */
 void restore_interrupts(void)
 {
-        if (irqs_disabled())
+        if (irqs_disabled()) {
+                local_paca->irq_happened |= PACA_IRQ_HARD_DIS;
                 local_irq_enable();
+        } else
+                __hard_irq_enable();
 }
 
 #endif /* CONFIG_PPC64 */
@@ -330,14 +349,10 @@ void migrate_irqs(void)
 
         alloc_cpumask_var(&mask, GFP_KERNEL);
 
-        for_each_irq(irq) {
+        for_each_irq_desc(irq, desc) {
                 struct irq_data *data;
                 struct irq_chip *chip;
 
-                desc = irq_to_desc(irq);
-                if (!desc)
-                        continue;
-
                 data = irq_desc_get_irq_data(desc);
                 if (irqd_is_per_cpu(data))
                         continue;
@@ -560,12 +575,6 @@ void do_softirq(void)
         local_irq_restore(flags);
 }
 
-irq_hw_number_t irqd_to_hwirq(struct irq_data *d)
-{
-        return d->hwirq;
-}
-EXPORT_SYMBOL_GPL(irqd_to_hwirq);
-
 irq_hw_number_t virq_to_hw(unsigned int virq)
 {
         struct irq_data *irq_data = irq_get_irq_data(virq);
diff --git a/arch/powerpc/kernel/kgdb.c b/arch/powerpc/kernel/kgdb.c
index 76a6e40a6f7c..782bd0a3c2f0 100644
--- a/arch/powerpc/kernel/kgdb.c
+++ b/arch/powerpc/kernel/kgdb.c
@@ -24,6 +24,7 @@
 #include <asm/current.h>
 #include <asm/processor.h>
 #include <asm/machdep.h>
+#include <asm/debug.h>
 
 /*
  * This table contains the mapping between PowerPC hardware trap types, and
diff --git a/arch/powerpc/kernel/machine_kexec.c b/arch/powerpc/kernel/machine_kexec.c
index c957b1202bdc..5df777794403 100644
--- a/arch/powerpc/kernel/machine_kexec.c
+++ b/arch/powerpc/kernel/machine_kexec.c
@@ -23,14 +23,11 @@
 
 void machine_kexec_mask_interrupts(void) {
         unsigned int i;
+        struct irq_desc *desc;
 
-        for_each_irq(i) {
-                struct irq_desc *desc = irq_to_desc(i);
+        for_each_irq_desc(i, desc) {
                 struct irq_chip *chip;
 
-                if (!desc)
-                        continue;
-
                 chip = irq_desc_get_chip(desc);
                 if (!chip)
                         continue;
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index f88698c0f332..4937c9690090 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -1235,7 +1235,7 @@ void __ppc64_runlatch_on(void)
         ctrl |= CTRL_RUNLATCH;
         mtspr(SPRN_CTRLT, ctrl);
 
-        ti->local_flags |= TLF_RUNLATCH;
+        ti->local_flags |= _TLF_RUNLATCH;
 }
 
 /* Called with hard IRQs off */
@@ -1244,7 +1244,7 @@ void __ppc64_runlatch_off(void)
         struct thread_info *ti = current_thread_info();
         unsigned long ctrl;
 
-        ti->local_flags &= ~TLF_RUNLATCH;
+        ti->local_flags &= ~_TLF_RUNLATCH;
 
         ctrl = mfspr(SPRN_CTRLF);
         ctrl &= ~CTRL_RUNLATCH;
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index 9825f29d1faf..ec8a53fa9e8f 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -150,6 +150,9 @@ notrace void __init machine_init(u64 dt_ptr)
 }
 
 #ifdef CONFIG_BOOKE_WDT
+extern u32 booke_wdt_enabled;
+extern u32 booke_wdt_period;
+
 /* Checks wdt=x and wdt_period=xx command-line option */
 notrace int __init early_parse_wdt(char *p)
 {
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 6aa0c663e247..158972341a2d 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -248,7 +248,7 @@ void _exception(int signr, struct pt_regs *regs, int code, unsigned long addr)
                                    addr, regs->nip, regs->link, code);
         }
 
-        if (!arch_irq_disabled_regs(regs))
+        if (arch_irqs_disabled() && !arch_irq_disabled_regs(regs))
                 local_irq_enable();
 
         memset(&info, 0, sizeof(info));
@@ -1019,7 +1019,9 @@ void __kprobes program_check_exception(struct pt_regs *regs)
                 return;
         }
 
-        local_irq_enable();
+        /* We restore the interrupt state now */
+        if (!arch_irq_disabled_regs(regs))
+                local_irq_enable();
 
 #ifdef CONFIG_MATH_EMULATION
         /* (reason & REASON_ILLEGAL) would be the obvious thing here,
@@ -1069,6 +1071,10 @@ void alignment_exception(struct pt_regs *regs)
 {
         int sig, code, fixed = 0;
 
+        /* We restore the interrupt state now */
+        if (!arch_irq_disabled_regs(regs))
+                local_irq_enable();
+
         /* we don't implement logging of alignment exceptions */
         if (!(current->thread.align_ctl & PR_UNALIGN_SIGBUS))
                 fixed = fix_alignment(regs);
diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
index b2f7c8480bf6..a3a99901c8ec 100644
--- a/arch/powerpc/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c
@@ -482,7 +482,8 @@ static void vio_cmo_balance(struct work_struct *work)
 }
 
 static void *vio_dma_iommu_alloc_coherent(struct device *dev, size_t size,
-                                          dma_addr_t *dma_handle, gfp_t flag)
+                                          dma_addr_t *dma_handle, gfp_t flag,
+                                          struct dma_attrs *attrs)
 {
         struct vio_dev *viodev = to_vio_dev(dev);
         void *ret;
@@ -492,7 +493,7 @@ static void *vio_dma_iommu_alloc_coherent(struct device *dev, size_t size,
                 return NULL;
         }
 
-        ret = dma_iommu_ops.alloc_coherent(dev, size, dma_handle, flag);
+        ret = dma_iommu_ops.alloc(dev, size, dma_handle, flag, attrs);
         if (unlikely(ret == NULL)) {
                 vio_cmo_dealloc(viodev, roundup(size, PAGE_SIZE));
                 atomic_inc(&viodev->cmo.allocs_failed);
@@ -502,11 +503,12 @@ static void *vio_dma_iommu_alloc_coherent(struct device *dev, size_t size,
 }
 
 static void vio_dma_iommu_free_coherent(struct device *dev, size_t size,
-                                        void *vaddr, dma_addr_t dma_handle)
+                                        void *vaddr, dma_addr_t dma_handle,
+                                        struct dma_attrs *attrs)
 {
         struct vio_dev *viodev = to_vio_dev(dev);
 
-        dma_iommu_ops.free_coherent(dev, size, vaddr, dma_handle);
+        dma_iommu_ops.free(dev, size, vaddr, dma_handle, attrs);
 
         vio_cmo_dealloc(viodev, roundup(size, PAGE_SIZE));
 }
@@ -607,8 +609,8 @@ static u64 vio_dma_get_required_mask(struct device *dev)
 }
 
 struct dma_map_ops vio_dma_mapping_ops = {
-        .alloc_coherent    = vio_dma_iommu_alloc_coherent,
-        .free_coherent     = vio_dma_iommu_free_coherent,
+        .alloc             = vio_dma_iommu_alloc_coherent,
+        .free              = vio_dma_iommu_free_coherent,
         .map_sg            = vio_dma_iommu_map_sg,
         .unmap_sg          = vio_dma_iommu_unmap_sg,
         .map_page          = vio_dma_iommu_map_page,
diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c
index ddc485a529f2..c3beaeef3f60 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_hv.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c
@@ -258,6 +258,8 @@ static long kvmppc_get_guest_page(struct kvm *kvm, unsigned long gfn,
                             !(memslot->userspace_addr & (s - 1))) {
                                 start &= ~(s - 1);
                                 pgsize = s;
+                                get_page(hpage);
+                                put_page(page);
                                 page = hpage;
                         }
                 }
@@ -281,11 +283,8 @@ static long kvmppc_get_guest_page(struct kvm *kvm, unsigned long gfn,
         err = 0;
 
  out:
-        if (got) {
-                if (PageHuge(page))
-                        page = compound_head(page);
+        if (got)
                 put_page(page);
-        }
         return err;
 
  up_err:
@@ -678,8 +677,15 @@ int kvmppc_book3s_hv_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu,
                 SetPageDirty(page);
 
  out_put:
-        if (page)
-                put_page(page);
+        if (page) {
+                /*
+                 * We drop pages[0] here, not page because page might
+                 * have been set to the head page of a compound, but
+                 * we have to drop the reference on the correct tail
+                 * page to match the get inside gup()
+                 */
+                put_page(pages[0]);
+        }
         return ret;
 
  out_unlock:
@@ -979,6 +985,7 @@ void *kvmppc_pin_guest_page(struct kvm *kvm, unsigned long gpa,
                         pa = *physp;
                 }
                 page = pfn_to_page(pa >> PAGE_SHIFT);
+                get_page(page);
         } else {
                 hva = gfn_to_hva_memslot(memslot, gfn);
                 npages = get_user_pages_fast(hva, 1, 1, pages);
@@ -991,8 +998,6 @@ void *kvmppc_pin_guest_page(struct kvm *kvm, unsigned long gpa,
                 page = compound_head(page);
                 psize <<= compound_order(page);
         }
-        if (!kvm->arch.using_mmu_notifiers)
-                get_page(page);
         offset = gpa & (psize - 1);
         if (nb_ret)
                 *nb_ret = psize - offset;
@@ -1003,7 +1008,6 @@ void kvmppc_unpin_guest_page(struct kvm *kvm, void *va)
 {
         struct page *page = virt_to_page(va);
 
-        page = compound_head(page);
         put_page(page);
 }
 
diff --git a/arch/powerpc/kvm/book3s_emulate.c b/arch/powerpc/kvm/book3s_emulate.c
index f1950d131827..135663a3e4fc 100644
--- a/arch/powerpc/kvm/book3s_emulate.c
+++ b/arch/powerpc/kvm/book3s_emulate.c
@@ -21,6 +21,7 @@
 #include <asm/disassemble.h>
 #include <asm/kvm_book3s.h>
 #include <asm/reg.h>
+#include <asm/switch_to.h>
 
 #define OP_19_XOP_RFID          18
 #define OP_19_XOP_RFI           50
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 01294a5099dd..108d1f580177 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -1192,8 +1192,6 @@ static void unpin_slot(struct kvm *kvm, int slot_id)
                                 continue;
                         pfn = physp[j] >> PAGE_SHIFT;
                         page = pfn_to_page(pfn);
-                        if (PageHuge(page))
-                                page = compound_head(page);
                         SetPageDirty(page);
                         put_page(page);
                 }
diff --git a/arch/powerpc/kvm/book3s_hv_builtin.c b/arch/powerpc/kvm/book3s_hv_builtin.c
index bed1279aa6a8..e1b60f56f2a1 100644
--- a/arch/powerpc/kvm/book3s_hv_builtin.c
+++ b/arch/powerpc/kvm/book3s_hv_builtin.c
@@ -173,9 +173,9 @@ static void __init kvm_linear_init_one(ulong size, int count, int type)
 
 static struct kvmppc_linear_info *kvm_alloc_linear(int type)
 {
-        struct kvmppc_linear_info *ri;
+        struct kvmppc_linear_info *ri, *ret;
 
-        ri = NULL;
+        ret = NULL;
         spin_lock(&linear_lock);
         list_for_each_entry(ri, &free_linears, list) {
                 if (ri->type != type)
@@ -183,11 +183,12 @@ static struct kvmppc_linear_info *kvm_alloc_linear(int type)
 
                 list_del(&ri->list);
                 atomic_inc(&ri->use_count);
+                memset(ri->base_virt, 0, ri->npages << PAGE_SHIFT);
+                ret = ri;
                 break;
         }
         spin_unlock(&linear_lock);
-        memset(ri->base_virt, 0, ri->npages << PAGE_SHIFT);
-        return ri;
+        return ret;
 }
 
 static void kvm_release_linear(struct kvmppc_linear_info *ri)
diff --git a/arch/powerpc/kvm/book3s_hv_interrupts.S b/arch/powerpc/kvm/book3s_hv_interrupts.S
index 3f7b674dd4bf..d3fb4df02c41 100644
--- a/arch/powerpc/kvm/book3s_hv_interrupts.S
+++ b/arch/powerpc/kvm/book3s_hv_interrupts.S
@@ -46,8 +46,10 @@ _GLOBAL(__kvmppc_vcore_entry)
         /* Save host state to the stack */
         stdu    r1, -SWITCH_FRAME_SIZE(r1)
 
-        /* Save non-volatile registers (r14 - r31) */
+        /* Save non-volatile registers (r14 - r31) and CR */
         SAVE_NVGPRS(r1)
+        mfcr    r3
+        std     r3, _CCR(r1)
 
         /* Save host DSCR */
 BEGIN_FTR_SECTION
@@ -157,8 +159,10 @@ kvmppc_handler_highmem:
          * R13      = PACA
          */
 
-        /* Restore non-volatile host registers (r14 - r31) */
+        /* Restore non-volatile host registers (r14 - r31) and CR */
         REST_NVGPRS(r1)
+        ld      r4, _CCR(r1)
+        mtcr    r4
 
         addi    r1, r1, SWITCH_FRAME_SIZE
         ld      r0, PPC_LR_STKOFF(r1)
diff --git a/arch/powerpc/kvm/book3s_interrupts.S b/arch/powerpc/kvm/book3s_interrupts.S
index 0a8515a5c042..3e35383bdb21 100644
--- a/arch/powerpc/kvm/book3s_interrupts.S
+++ b/arch/powerpc/kvm/book3s_interrupts.S
@@ -84,6 +84,10 @@ kvm_start_entry:
         /* Save non-volatile registers (r14 - r31) */
         SAVE_NVGPRS(r1)
 
+        /* Save CR */
+        mfcr    r14
+        stw     r14, _CCR(r1)
+
         /* Save LR */
         PPC_STL r0, _LINK(r1)
 
@@ -165,6 +169,9 @@ kvm_exit_loop:
         PPC_LL  r4, _LINK(r1)
         mtlr    r4
 
+        lwz     r14, _CCR(r1)
+        mtcr    r14
+
         /* Restore non-volatile host registers (r14 - r31) */
         REST_NVGPRS(r1)
 
diff --git a/arch/powerpc/kvm/book3s_paired_singles.c b/arch/powerpc/kvm/book3s_paired_singles.c
index e70ef2d86431..a59a25a13218 100644
--- a/arch/powerpc/kvm/book3s_paired_singles.c
+++ b/arch/powerpc/kvm/book3s_paired_singles.c
@@ -24,6 +24,7 @@
 #include <asm/kvm_fpu.h>
 #include <asm/reg.h>
 #include <asm/cacheflush.h>
+#include <asm/switch_to.h>
 #include <linux/vmalloc.h>
 
 /* #define DEBUG */
diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c
index 7340e1090b77..7759053d391b 100644
--- a/arch/powerpc/kvm/book3s_pr.c
+++ b/arch/powerpc/kvm/book3s_pr.c
@@ -33,6 +33,7 @@
 #include <asm/kvm_ppc.h>
 #include <asm/kvm_book3s.h>
 #include <asm/mmu_context.h>
+#include <asm/switch_to.h>
 #include <linux/gfp.h>
 #include <linux/sched.h>
 #include <linux/vmalloc.h>
@@ -776,6 +777,7 @@ program_interrupt:
         }
         }
 
+        preempt_disable();
         if (!(r & RESUME_HOST)) {
                 /* To avoid clobbering exit_reason, only check for signals if
                  * we aren't already exiting to userspace for some other
@@ -797,8 +799,6 @@ program_interrupt:
                         run->exit_reason = KVM_EXIT_INTR;
                         r = -EINTR;
                 } else {
-                        preempt_disable();
-
                         /* In case an interrupt came in that was triggered
                          * from userspace (like DEC), we need to check what
                          * to inject now! */
@@ -880,7 +880,8 @@ int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
 
         switch (reg->id) {
         case KVM_REG_PPC_HIOR:
-                r = put_user(to_book3s(vcpu)->hior, (u64 __user *)reg->addr);
+                r = copy_to_user((u64 __user *)(long)reg->addr,
+                                &to_book3s(vcpu)->hior, sizeof(u64));
                 break;
         default:
                 break;
@@ -895,7 +896,8 @@ int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
 
         switch (reg->id) {
         case KVM_REG_PPC_HIOR:
-                r = get_user(to_book3s(vcpu)->hior, (u64 __user *)reg->addr);
+                r = copy_from_user(&to_book3s(vcpu)->hior,
+                                   (u64 __user *)(long)reg->addr, sizeof(u64));
                 if (!r)
                         to_book3s(vcpu)->hior_explicit = true;
                 break;
diff --git a/arch/powerpc/kvm/booke_interrupts.S b/arch/powerpc/kvm/booke_interrupts.S
index 10d8ef602e5c..c8c4b878795a 100644
--- a/arch/powerpc/kvm/booke_interrupts.S
+++ b/arch/powerpc/kvm/booke_interrupts.S
@@ -34,7 +34,8 @@
 /* r2 is special: it holds 'current', and it made nonvolatile in the
  * kernel with the -ffixed-r2 gcc option. */
 #define HOST_R2         12
-#define HOST_NV_GPRS    16
+#define HOST_CR         16
+#define HOST_NV_GPRS    20
 #define HOST_NV_GPR(n)  (HOST_NV_GPRS + ((n - 14) * 4))
 #define HOST_MIN_STACK_SIZE (HOST_NV_GPR(31) + 4)
 #define HOST_STACK_SIZE (((HOST_MIN_STACK_SIZE + 15) / 16) * 16) /* Align. */
@@ -296,8 +297,10 @@ heavyweight_exit:
 
         /* Return to kvm_vcpu_run(). */
         lwz     r4, HOST_STACK_LR(r1)
+        lwz     r5, HOST_CR(r1)
         addi    r1, r1, HOST_STACK_SIZE
         mtlr    r4
+        mtcr    r5
         /* r3 still contains the return code from kvmppc_handle_exit(). */
         blr
 
@@ -314,6 +317,8 @@ _GLOBAL(__kvmppc_vcpu_run)
         stw     r3, HOST_RUN(r1)
         mflr    r3
         stw     r3, HOST_STACK_LR(r1)
+        mfcr    r5
+        stw     r5, HOST_CR(r1)
 
         /* Save host non-volatile register state to stack. */
         stw     r14, HOST_NV_GPR(r14)(r1)
diff --git a/arch/powerpc/net/bpf_jit.h b/arch/powerpc/net/bpf_jit.h
index af1ab5e9a691..5c3cf2d04e41 100644
--- a/arch/powerpc/net/bpf_jit.h
+++ b/arch/powerpc/net/bpf_jit.h
@@ -48,7 +48,13 @@
 /*
  * Assembly helpers from arch/powerpc/net/bpf_jit.S:
  */
-extern u8 sk_load_word[], sk_load_half[], sk_load_byte[], sk_load_byte_msh[];
+#define DECLARE_LOAD_FUNC(func) \
+        extern u8 func[], func##_negative_offset[], func##_positive_offset[]
+
+DECLARE_LOAD_FUNC(sk_load_word);
+DECLARE_LOAD_FUNC(sk_load_half);
+DECLARE_LOAD_FUNC(sk_load_byte);
+DECLARE_LOAD_FUNC(sk_load_byte_msh);
 
 #define FUNCTION_DESCR_SIZE     24
 
diff --git a/arch/powerpc/net/bpf_jit_64.S b/arch/powerpc/net/bpf_jit_64.S
index ff4506e85cce..55ba3855a97f 100644
--- a/arch/powerpc/net/bpf_jit_64.S
+++ b/arch/powerpc/net/bpf_jit_64.S
@@ -31,14 +31,13 @@
  * then branch directly to slow_path_XXX if required.  (In fact, could
  * load a spare GPR with the address of slow_path_generic and pass size
  * as an argument, making the call site a mtlr, li and bllr.)
- *
- * Technically, the "is addr < 0" check is unnecessary & slowing down
- * the ABS path, as it's statically checked on generation.
  */
         .globl  sk_load_word
 sk_load_word:
         cmpdi   r_addr, 0
-        blt     bpf_error
+        blt     bpf_slow_path_word_neg
+        .globl  sk_load_word_positive_offset
+sk_load_word_positive_offset:
         /* Are we accessing past headlen? */
         subi    r_scratch1, r_HL, 4
         cmpd    r_scratch1, r_addr
@@ -51,7 +50,9 @@ sk_load_word:
         .globl  sk_load_half
 sk_load_half:
         cmpdi   r_addr, 0
-        blt     bpf_error
+        blt     bpf_slow_path_half_neg
+        .globl  sk_load_half_positive_offset
+sk_load_half_positive_offset:
         subi    r_scratch1, r_HL, 2
         cmpd    r_scratch1, r_addr
         blt     bpf_slow_path_half
@@ -61,7 +62,9 @@ sk_load_half:
         .globl  sk_load_byte
 sk_load_byte:
         cmpdi   r_addr, 0
-        blt     bpf_error
+        blt     bpf_slow_path_byte_neg
+        .globl  sk_load_byte_positive_offset
+sk_load_byte_positive_offset:
         cmpd    r_HL, r_addr
         ble     bpf_slow_path_byte
         lbzx    r_A, r_D, r_addr
@@ -69,22 +72,20 @@ sk_load_byte:
 
 /*
  * BPF_S_LDX_B_MSH: ldxb  4*([offset]&0xf)
- * r_addr is the offset value, already known positive
+ * r_addr is the offset value
  */
         .globl sk_load_byte_msh
 sk_load_byte_msh:
+        cmpdi   r_addr, 0
+        blt     bpf_slow_path_byte_msh_neg
+        .globl sk_load_byte_msh_positive_offset
+sk_load_byte_msh_positive_offset:
         cmpd    r_HL, r_addr
         ble     bpf_slow_path_byte_msh
         lbzx    r_X, r_D, r_addr
         rlwinm  r_X, r_X, 2, 32-4-2, 31-2
         blr
 
-bpf_error:
-        /* Entered with cr0 = lt */
-        li      r3, 0
-        /* Generated code will 'blt epilogue', returning 0. */
-        blr
-
 /* Call out to skb_copy_bits:
  * We'll need to back up our volatile regs first; we have
  * local variable space at r1+(BPF_PPC_STACK_BASIC).
@@ -136,3 +137,84 @@ bpf_slow_path_byte_msh:
         lbz     r_X, BPF_PPC_STACK_BASIC+(2*8)(r1)
         rlwinm  r_X, r_X, 2, 32-4-2, 31-2
         blr
+
+/* Call out to bpf_internal_load_pointer_neg_helper:
+ * We'll need to back up our volatile regs first; we have
+ * local variable space at r1+(BPF_PPC_STACK_BASIC).
+ * Allocate a new stack frame here to remain ABI-compliant in
+ * stashing LR.
+ */
+#define sk_negative_common(SIZE)                                \
+        mflr    r0;                                             \
+        std     r0, 16(r1);                                     \
+        /* R3 goes in parameter space of caller's frame */      \
+        std     r_skb, (BPF_PPC_STACKFRAME+48)(r1);             \
+        std     r_A, (BPF_PPC_STACK_BASIC+(0*8))(r1);           \
+        std     r_X, (BPF_PPC_STACK_BASIC+(1*8))(r1);           \
+        stdu    r1, -BPF_PPC_SLOWPATH_FRAME(r1);                \
+        /* R3 = r_skb, as passed */                             \
+        mr      r4, r_addr;                                     \
+        li      r5, SIZE;                                       \
+        bl      bpf_internal_load_pointer_neg_helper;           \
+        /* R3 != 0 on success */                                \
+        addi    r1, r1, BPF_PPC_SLOWPATH_FRAME;                 \
+        ld      r0, 16(r1);                                     \
+        ld      r_A, (BPF_PPC_STACK_BASIC+(0*8))(r1);           \
+        ld      r_X, (BPF_PPC_STACK_BASIC+(1*8))(r1);           \
+        mtlr    r0;                                             \
+        cmpldi  r3, 0;                                          \
+        beq     bpf_error_slow; /* cr0 = EQ */                  \
+        mr      r_addr, r3;                                     \
+        ld      r_skb, (BPF_PPC_STACKFRAME+48)(r1);             \
+        /* Great success! */
+
+bpf_slow_path_word_neg:
+        lis     r_scratch1,-32  /* SKF_LL_OFF */
+        cmpd    r_addr, r_scratch1      /* addr < SKF_* */
+        blt     bpf_error       /* cr0 = LT */
+        .globl  sk_load_word_negative_offset
+sk_load_word_negative_offset:
+        sk_negative_common(4)
+        lwz     r_A, 0(r_addr)
+        blr
+
+bpf_slow_path_half_neg:
+        lis     r_scratch1,-32  /* SKF_LL_OFF */
+        cmpd    r_addr, r_scratch1      /* addr < SKF_* */
+        blt     bpf_error       /* cr0 = LT */
+        .globl  sk_load_half_negative_offset
+sk_load_half_negative_offset:
+        sk_negative_common(2)
+        lhz     r_A, 0(r_addr)
+        blr
+
+bpf_slow_path_byte_neg:
+        lis     r_scratch1,-32  /* SKF_LL_OFF */
+        cmpd    r_addr, r_scratch1      /* addr < SKF_* */
+        blt     bpf_error       /* cr0 = LT */
+        .globl  sk_load_byte_negative_offset
+sk_load_byte_negative_offset:
+        sk_negative_common(1)
+        lbz     r_A, 0(r_addr)
+        blr
+
+bpf_slow_path_byte_msh_neg:
+        lis     r_scratch1,-32  /* SKF_LL_OFF */
+        cmpd    r_addr, r_scratch1      /* addr < SKF_* */
+        blt     bpf_error       /* cr0 = LT */
+        .globl  sk_load_byte_msh_negative_offset
+sk_load_byte_msh_negative_offset:
+        sk_negative_common(1)
+        lbz     r_X, 0(r_addr)
+        rlwinm  r_X, r_X, 2, 32-4-2, 31-2
+        blr
+
+bpf_error_slow:
+        /* fabricate a cr0 = lt */
+        li      r_scratch1, -1
+        cmpdi   r_scratch1, 0
+bpf_error:
+        /* Entered with cr0 = lt */
+        li      r3, 0
+        /* Generated code will 'blt epilogue', returning 0. */
+        blr
diff --git a/arch/powerpc/net/bpf_jit_comp.c b/arch/powerpc/net/bpf_jit_comp.c
index 73619d3aeb6c..2dc8b1484845 100644
--- a/arch/powerpc/net/bpf_jit_comp.c
+++ b/arch/powerpc/net/bpf_jit_comp.c
@@ -127,6 +127,9 @@ static void bpf_jit_build_epilogue(u32 *image, struct codegen_context *ctx)
         PPC_BLR();
 }
 
+#define CHOOSE_LOAD_FUNC(K, func) \
+        ((int)K < 0 ? ((int)K >= SKF_LL_OFF ? func##_negative_offset : func) : func##_positive_offset)
+
 /* Assemble the body code between the prologue & epilogue. */
 static int bpf_jit_build_body(struct sk_filter *fp, u32 *image,
                               struct codegen_context *ctx,
@@ -391,21 +394,16 @@ static int bpf_jit_build_body(struct sk_filter *fp, u32 *image,
 
                         /*** Absolute loads from packet header/data ***/
                 case BPF_S_LD_W_ABS:
-                        func = sk_load_word;
+                        func = CHOOSE_LOAD_FUNC(K, sk_load_word);
                         goto common_load;
                 case BPF_S_LD_H_ABS:
-                        func = sk_load_half;
+                        func = CHOOSE_LOAD_FUNC(K, sk_load_half);
                         goto common_load;
                 case BPF_S_LD_B_ABS:
-                        func = sk_load_byte;
+                        func = CHOOSE_LOAD_FUNC(K, sk_load_byte);
                 common_load:
-                        /*
-                         * Load from [K].  Reference with the (negative)
-                         * SKF_NET_OFF/SKF_LL_OFF offsets is unsupported.
-                         */
+                        /* Load from [K]. */
                         ctx->seen |= SEEN_DATAREF;
-                        if ((int)K < 0)
-                                return -ENOTSUPP;
                         PPC_LI64(r_scratch1, func);
                         PPC_MTLR(r_scratch1);
                         PPC_LI32(r_addr, K);
@@ -429,7 +427,7 @@ static int bpf_jit_build_body(struct sk_filter *fp, u32 *image,
                 common_load_ind:
                         /*
                          * Load from [X + K].  Negative offsets are tested for
-                         * in the helper functions, and result in a 'ret 0'.
+                         * in the helper functions.
                          */
                         ctx->seen |= SEEN_DATAREF | SEEN_XREG;
                         PPC_LI64(r_scratch1, func);
@@ -443,13 +441,7 @@ static int bpf_jit_build_body(struct sk_filter *fp, u32 *image,
                         break;
 
                 case BPF_S_LDX_B_MSH:
-                        /*
-                         * x86 version drops packet (RET 0) when K<0, whereas
-                         * interpreter does allow K<0 (__load_pointer, special
-                         * ancillary data).  common_load returns ENOTSUPP if K<0,
-                         * so we fall back to interpreter & filter works.
-                         */
-                        func = sk_load_byte_msh;
+                        func = CHOOSE_LOAD_FUNC(K, sk_load_byte_msh);
                         goto common_load;
                         break;
 
diff --git a/arch/powerpc/platforms/52xx/mpc52xx_pci.c b/arch/powerpc/platforms/52xx/mpc52xx_pci.c
index bfb11e01133e..e2d401ad8fbb 100644
--- a/arch/powerpc/platforms/52xx/mpc52xx_pci.c
+++ b/arch/powerpc/platforms/52xx/mpc52xx_pci.c
@@ -93,7 +93,7 @@ struct mpc52xx_pci {
 };
 
 /* MPC5200 device tree match tables */
-const struct of_device_id mpc52xx_pci_ids[] __initdata = {
+const struct of_device_id mpc52xx_pci_ids[] __initconst = {
         { .type = "pci", .compatible = "fsl,mpc5200-pci", },
         { .type = "pci", .compatible = "mpc5200-pci", },
         {}
diff --git a/arch/powerpc/platforms/85xx/common.c b/arch/powerpc/platforms/85xx/common.c
index 9fef5302adc1..67dac22b4363 100644
--- a/arch/powerpc/platforms/85xx/common.c
+++ b/arch/powerpc/platforms/85xx/common.c
@@ -21,6 +21,12 @@ static struct of_device_id __initdata mpc85xx_common_ids[] = {
         { .compatible = "fsl,qe", },
         { .compatible = "fsl,cpm2", },
         { .compatible = "fsl,srio", },
+        /* So that the DMA channel nodes can be probed individually: */
+        { .compatible = "fsl,eloplus-dma", },
+        /* For the PMC driver */
+        { .compatible = "fsl,mpc8548-guts", },
+        /* Probably unnecessary? */
+        { .compatible = "gpio-leds", },
         {},
 };
 
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_mds.c b/arch/powerpc/platforms/85xx/mpc85xx_mds.c
index 3754ddc00af7..d208ebccb91c 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_mds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_mds.c
@@ -270,7 +270,7 @@ static void __init mpc85xx_mds_qe_init(void)
 
         if (machine_is(p1021_mds)) {
 
-                struct ccsr_guts_85xx __iomem *guts;
+                struct ccsr_guts __iomem *guts;
 
                 np = of_find_node_by_name(NULL, "global-utilities");
                 if (np) {
@@ -399,12 +399,6 @@ static int __init board_fixups(void)
 machine_arch_initcall(mpc8568_mds, board_fixups);
 machine_arch_initcall(mpc8569_mds, board_fixups);
 
-static struct of_device_id mpc85xx_ids[] = {
-        { .compatible = "fsl,mpc8548-guts", },
-        { .compatible = "gpio-leds", },
-        {},
-};
-
 static int __init mpc85xx_publish_devices(void)
 {
         if (machine_is(mpc8568_mds))
@@ -412,10 +406,7 @@ static int __init mpc85xx_publish_devices(void)
         if (machine_is(mpc8569_mds))
                 simple_gpiochip_init("fsl,mpc8569mds-bcsr-gpio");
 
-        mpc85xx_common_publish_devices();
-        of_platform_bus_probe(NULL, mpc85xx_ids, NULL);
-
-        return 0;
+        return mpc85xx_common_publish_devices();
 }
 
 machine_device_initcall(mpc8568_mds, mpc85xx_publish_devices);
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_rdb.c b/arch/powerpc/platforms/85xx/mpc85xx_rdb.c
index 9848f9e39853..313fce4f5574 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_rdb.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_rdb.c
@@ -127,7 +127,7 @@ static void __init mpc85xx_rdb_setup_arch(void)
 #if defined(CONFIG_UCC_GETH) || defined(CONFIG_SERIAL_QE)
         if (machine_is(p1025_rdb)) {
 
-                struct ccsr_guts_85xx __iomem *guts;
+                struct ccsr_guts __iomem *guts;
 
                 np = of_find_node_by_name(NULL, "global-utilities");
                 if (np) {
diff --git a/arch/powerpc/platforms/85xx/p1022_ds.c b/arch/powerpc/platforms/85xx/p1022_ds.c
index 0fe88e39945e..f700c81a1321 100644
--- a/arch/powerpc/platforms/85xx/p1022_ds.c
+++ b/arch/powerpc/platforms/85xx/p1022_ds.c
@@ -150,7 +150,7 @@ static void p1022ds_set_monitor_port(enum fsl_diu_monitor_port port)
 {
         struct device_node *guts_node;
         struct device_node *indirect_node = NULL;
-        struct ccsr_guts_85xx __iomem *guts;
+        struct ccsr_guts __iomem *guts;
         u8 __iomem *lbc_lcs0_ba = NULL;
         u8 __iomem *lbc_lcs1_ba = NULL;
         u8 b;
@@ -269,7 +269,7 @@ exit:
 void p1022ds_set_pixel_clock(unsigned int pixclock)
 {
         struct device_node *guts_np = NULL;
-        struct ccsr_guts_85xx __iomem *guts;
+        struct ccsr_guts __iomem *guts;
         unsigned long freq;
         u64 temp;
         u32 pxclk;
@@ -460,18 +460,7 @@ static void __init p1022_ds_setup_arch(void)
         pr_info("Freescale P1022 DS reference board\n");
 }
 
-static struct of_device_id __initdata p1022_ds_ids[] = {
-        /* So that the DMA channel nodes can be probed individually: */
-        { .compatible = "fsl,eloplus-dma", },
-        {},
-};
-
-static int __init p1022_ds_publish_devices(void)
-{
-        mpc85xx_common_publish_devices();
-        return of_platform_bus_probe(NULL, p1022_ds_ids, NULL);
-}
-machine_device_initcall(p1022_ds, p1022_ds_publish_devices);
+machine_device_initcall(p1022_ds, mpc85xx_common_publish_devices);
 
 machine_arch_initcall(p1022_ds, swiotlb_setup_bus_notifier);
 
diff --git a/arch/powerpc/platforms/86xx/mpc8610_hpcd.c b/arch/powerpc/platforms/86xx/mpc8610_hpcd.c
index bbc615206c67..62cd3c555bfb 100644
--- a/arch/powerpc/platforms/86xx/mpc8610_hpcd.c
+++ b/arch/powerpc/platforms/86xx/mpc8610_hpcd.c
@@ -225,7 +225,7 @@ void mpc8610hpcd_set_monitor_port(enum fsl_diu_monitor_port port)
 void mpc8610hpcd_set_pixel_clock(unsigned int pixclock)
 {
         struct device_node *guts_np = NULL;
-        struct ccsr_guts_86xx __iomem *guts;
+        struct ccsr_guts __iomem *guts;
         unsigned long freq;
         u64 temp;
         u32 pxclk;
diff --git a/arch/powerpc/platforms/cell/axon_msi.c b/arch/powerpc/platforms/cell/axon_msi.c
index db360fc4cf0e..85825b5401e5 100644
--- a/arch/powerpc/platforms/cell/axon_msi.c
+++ b/arch/powerpc/platforms/cell/axon_msi.c
@@ -114,7 +114,7 @@ static void axon_msi_cascade(unsigned int irq, struct irq_desc *desc)
                 pr_devel("axon_msi: woff %x roff %x msi %x\n",
                           write_offset, msic->read_offset, msi);
 
-                if (msi < NR_IRQS && irq_get_chip_data(msi) == msic) {
+                if (msi < nr_irqs && irq_get_chip_data(msi) == msic) {
                         generic_handle_irq(msi);
                         msic->fifo_virt[idx] = cpu_to_le32(0xffffffff);
                 } else {
@@ -276,9 +276,6 @@ static int axon_msi_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
         if (rc)
                 return rc;
 
-        /* We rely on being able to stash a virq in a u16 */
-        BUILD_BUG_ON(NR_IRQS > 65536);
-
         list_for_each_entry(entry, &dev->msi_list, list) {
                 virq = irq_create_direct_mapping(msic->irq_domain);
                 if (virq == NO_IRQ) {
@@ -392,7 +389,8 @@ static int axon_msi_probe(struct platform_device *device)
         }
         memset(msic->fifo_virt, 0xff, MSIC_FIFO_SIZE_BYTES);
 
-        msic->irq_domain = irq_domain_add_nomap(dn, &msic_host_ops, msic);
+        /* We rely on being able to stash a virq in a u16, so limit irqs to < 65536 */
+        msic->irq_domain = irq_domain_add_nomap(dn, 65536, &msic_host_ops, msic);
         if (!msic->irq_domain) {
                 printk(KERN_ERR "axon_msi: couldn't allocate irq_domain for %s\n",
                        dn->full_name);
diff --git a/arch/powerpc/platforms/cell/beat_interrupt.c b/arch/powerpc/platforms/cell/beat_interrupt.c
index e5c3a2c6090d..8c6dc42ecf65 100644
--- a/arch/powerpc/platforms/cell/beat_interrupt.c
+++ b/arch/powerpc/platforms/cell/beat_interrupt.c
@@ -239,7 +239,7 @@ void __init beatic_init_IRQ(void)
         ppc_md.get_irq = beatic_get_irq;
 
         /* Allocate an irq host */
-        beatic_host = irq_domain_add_nomap(NULL, &beatic_pic_host_ops, NULL);
+        beatic_host = irq_domain_add_nomap(NULL, 0, &beatic_pic_host_ops, NULL);
         BUG_ON(beatic_host == NULL);
         irq_set_default_host(beatic_host);
 }
@@ -248,6 +248,6 @@ void beatic_deinit_IRQ(void)
 {
         int     i;
 
-        for (i = 1; i < NR_IRQS; i++)
+        for (i = 1; i < nr_irqs; i++)
                 beat_destruct_irq_plug(i);
 }
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index ae9fc7bc17d6..b9f509a34c01 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -564,7 +564,8 @@ static struct iommu_table *cell_get_iommu_table(struct device *dev)
 /* A coherent allocation implies strong ordering */
 
 static void *dma_fixed_alloc_coherent(struct device *dev, size_t size,
-                                      dma_addr_t *dma_handle, gfp_t flag)
+                                      dma_addr_t *dma_handle, gfp_t flag,
+                                      struct dma_attrs *attrs)
 {
         if (iommu_fixed_is_weak)
                 return iommu_alloc_coherent(dev, cell_get_iommu_table(dev),
@@ -572,18 +573,19 @@ static void *dma_fixed_alloc_coherent(struct device *dev, size_t size,
                                             device_to_mask(dev), flag,
                                             dev_to_node(dev));
         else
-                return dma_direct_ops.alloc_coherent(dev, size, dma_handle,
-                                                     flag);
+                return dma_direct_ops.alloc(dev, size, dma_handle, flag,
+                                            attrs);
 }
 
 static void dma_fixed_free_coherent(struct device *dev, size_t size,
-                                    void *vaddr, dma_addr_t dma_handle)
+                                    void *vaddr, dma_addr_t dma_handle,
+                                    struct dma_attrs *attrs)
 {
         if (iommu_fixed_is_weak)
                 iommu_free_coherent(cell_get_iommu_table(dev), size, vaddr,
                                     dma_handle);
         else
-                dma_direct_ops.free_coherent(dev, size, vaddr, dma_handle);
+                dma_direct_ops.free(dev, size, vaddr, dma_handle, attrs);
 }
 
 static dma_addr_t dma_fixed_map_page(struct device *dev, struct page *page,
@@ -642,8 +644,8 @@ static int dma_fixed_dma_supported(struct device *dev, u64 mask)
 static int dma_set_mask_and_switch(struct device *dev, u64 dma_mask);
 
 struct dma_map_ops dma_iommu_fixed_ops = {
-        .alloc_coherent = dma_fixed_alloc_coherent,
-        .free_coherent  = dma_fixed_free_coherent,
+        .alloc          = dma_fixed_alloc_coherent,
+        .free           = dma_fixed_free_coherent,
         .map_sg         = dma_fixed_map_sg,
         .unmap_sg       = dma_fixed_unmap_sg,
         .dma_supported  = dma_fixed_dma_supported,
diff --git a/arch/powerpc/platforms/cell/qpace_setup.c b/arch/powerpc/platforms/cell/qpace_setup.c
index 7f9b6742f8b6..6e3409d590ac 100644
--- a/arch/powerpc/platforms/cell/qpace_setup.c
+++ b/arch/powerpc/platforms/cell/qpace_setup.c
@@ -61,7 +61,7 @@ static void qpace_progress(char *s, unsigned short hex)
         printk("*** %04x : %s\n", hex, s ? s : "");
 }
 
-static const struct of_device_id qpace_bus_ids[] __initdata = {
+static const struct of_device_id qpace_bus_ids[] __initconst = {
         { .type = "soc", },
         { .compatible = "soc", },
         { .type = "spider", },
diff --git a/arch/powerpc/platforms/cell/setup.c b/arch/powerpc/platforms/cell/setup.c
index fa3e294fd343..4ab087671185 100644
--- a/arch/powerpc/platforms/cell/setup.c
+++ b/arch/powerpc/platforms/cell/setup.c
@@ -140,7 +140,7 @@ static int __devinit cell_setup_phb(struct pci_controller *phb)
         return 0;
 }
 
-static const struct of_device_id cell_bus_ids[] __initdata = {
+static const struct of_device_id cell_bus_ids[] __initconst = {
         { .type = "soc", },
         { .compatible = "soc", },
         { .type = "spider", },
diff --git a/arch/powerpc/platforms/powermac/low_i2c.c b/arch/powerpc/platforms/powermac/low_i2c.c
index 996c5ff7824b..03685a329d7d 100644
--- a/arch/powerpc/platforms/powermac/low_i2c.c
+++ b/arch/powerpc/platforms/powermac/low_i2c.c
@@ -366,11 +366,20 @@ static void kw_i2c_timeout(unsigned long data)
         unsigned long flags;
 
         spin_lock_irqsave(&host->lock, flags);
+
+        /*
+         * If the timer is pending, that means we raced with the
+         * irq, in which case we just return
+         */
+        if (timer_pending(&host->timeout_timer))
+                goto skip;
+
         kw_i2c_handle_interrupt(host, kw_read_reg(reg_isr));
         if (host->state != state_idle) {
                 host->timeout_timer.expires = jiffies + KW_POLL_TIMEOUT;
                 add_timer(&host->timeout_timer);
         }
+ skip:
         spin_unlock_irqrestore(&host->lock, flags);
 }
 
diff --git a/arch/powerpc/platforms/powermac/pic.c b/arch/powerpc/platforms/powermac/pic.c
index 66ad93de1d55..c4e630576ff2 100644
--- a/arch/powerpc/platforms/powermac/pic.c
+++ b/arch/powerpc/platforms/powermac/pic.c
@@ -57,9 +57,9 @@ static int max_real_irqs;
 
 static DEFINE_RAW_SPINLOCK(pmac_pic_lock);
 
-#define NR_MASK_WORDS   ((NR_IRQS + 31) / 32)
-static unsigned long ppc_lost_interrupts[NR_MASK_WORDS];
-static unsigned long ppc_cached_irq_mask[NR_MASK_WORDS];
+/* The max irq number this driver deals with is 128; see max_irqs */
+static DECLARE_BITMAP(ppc_lost_interrupts, 128);
+static DECLARE_BITMAP(ppc_cached_irq_mask, 128);
 static int pmac_irq_cascade = -1;
 static struct irq_domain *pmac_pic_host;
 
diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c
index a81e5a88fbdf..b4ddaa3fbb29 100644
--- a/arch/powerpc/platforms/powermac/smp.c
+++ b/arch/powerpc/platforms/powermac/smp.c
@@ -192,7 +192,7 @@ static int psurge_secondary_ipi_init(void)
 {
         int rc = -ENOMEM;
 
-        psurge_host = irq_domain_add_nomap(NULL, &psurge_host_ops, NULL);
+        psurge_host = irq_domain_add_nomap(NULL, 0, &psurge_host_ops, NULL);
 
         if (psurge_host)
                 psurge_secondary_virq = irq_create_direct_mapping(psurge_host);
diff --git a/arch/powerpc/platforms/ps3/interrupt.c b/arch/powerpc/platforms/ps3/interrupt.c
index 2a4ff86cc21f..5f3b23220b8e 100644
--- a/arch/powerpc/platforms/ps3/interrupt.c
+++ b/arch/powerpc/platforms/ps3/interrupt.c
@@ -753,9 +753,8 @@ void __init ps3_init_IRQ(void)
         unsigned cpu;
         struct irq_domain *host;
 
-        host = irq_domain_add_nomap(NULL, &ps3_host_ops, NULL);
+        host = irq_domain_add_nomap(NULL, PS3_PLUG_MAX + 1, &ps3_host_ops, NULL);
         irq_set_default_host(host);
-        irq_set_virq_count(PS3_PLUG_MAX + 1);
 
         for_each_possible_cpu(cpu) {
                 struct ps3_private *pd = &per_cpu(ps3_private, cpu);
diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c
index 880eb9ce22c5..5606fe36faf2 100644
--- a/arch/powerpc/platforms/ps3/system-bus.c
+++ b/arch/powerpc/platforms/ps3/system-bus.c
@@ -515,7 +515,8 @@ core_initcall(ps3_system_bus_init);
  * to the dma address (mapping) of the first page.
  */
 static void * ps3_alloc_coherent(struct device *_dev, size_t size,
-                                      dma_addr_t *dma_handle, gfp_t flag)
+                                 dma_addr_t *dma_handle, gfp_t flag,
+                                 struct dma_attrs *attrs)
 {
         int result;
         struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
@@ -552,7 +553,7 @@ clean_none:
 }
 
 static void ps3_free_coherent(struct device *_dev, size_t size, void *vaddr,
-        dma_addr_t dma_handle)
+                              dma_addr_t dma_handle, struct dma_attrs *attrs)
 {
         struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
 
@@ -701,8 +702,8 @@ static u64 ps3_dma_get_required_mask(struct device *_dev)
 }
 
 static struct dma_map_ops ps3_sb_dma_ops = {
-        .alloc_coherent = ps3_alloc_coherent,
-        .free_coherent = ps3_free_coherent,
+        .alloc = ps3_alloc_coherent,
+        .free = ps3_free_coherent,
         .map_sg = ps3_sb_map_sg,
         .unmap_sg = ps3_sb_unmap_sg,
         .dma_supported = ps3_dma_supported,
@@ -712,8 +713,8 @@ static struct dma_map_ops ps3_sb_dma_ops = {
 };
 
 static struct dma_map_ops ps3_ioc0_dma_ops = {
-        .alloc_coherent = ps3_alloc_coherent,
-        .free_coherent = ps3_free_coherent,
+        .alloc = ps3_alloc_coherent,
+        .free = ps3_free_coherent,
         .map_sg = ps3_ioc0_map_sg,
         .unmap_sg = ps3_ioc0_unmap_sg,
         .dma_supported = ps3_dma_supported,
diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig
index aadbe4f6d537..178a5f300bc9 100644
--- a/arch/powerpc/platforms/pseries/Kconfig
+++ b/arch/powerpc/platforms/pseries/Kconfig
@@ -30,9 +30,9 @@ config PPC_SPLPAR
           two or more partitions.
 
 config EEH
-        bool "PCI Extended Error Handling (EEH)" if EXPERT
+        bool
         depends on PPC_PSERIES && PCI
-        default y if !EXPERT
+        default y
 
 config PSERIES_MSI
        bool
diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c
index 309d38ef7322..a75e37dc41aa 100644
--- a/arch/powerpc/platforms/pseries/eeh.c
+++ b/arch/powerpc/platforms/pseries/eeh.c
@@ -1076,7 +1076,7 @@ static void eeh_add_device_late(struct pci_dev *dev)
         pr_debug("EEH: Adding device %s\n", pci_name(dev));
 
         dn = pci_device_to_OF_node(dev);
-        edev = pci_dev_to_eeh_dev(dev);
+        edev = of_node_to_eeh_dev(dn);
         if (edev->pdev == dev) {
                 pr_debug("EEH: Already referenced !\n");
                 return;
diff --git a/arch/powerpc/platforms/pseries/eeh_event.c b/arch/powerpc/platforms/pseries/eeh_event.c
index 4a4752565856..4cb375c0f8d1 100644
--- a/arch/powerpc/platforms/pseries/eeh_event.c
+++ b/arch/powerpc/platforms/pseries/eeh_event.c
@@ -59,8 +59,7 @@ static int eeh_event_handler(void * dummy)
         struct eeh_event *event;
         struct eeh_dev *edev;
 
-        daemonize("eehd");
-        set_current_state(TASK_INTERRUPTIBLE);
+        set_task_comm(current, "eehd");
 
         spin_lock_irqsave(&eeh_eventlist_lock, flags);
         event = NULL;
@@ -83,6 +82,7 @@ static int eeh_event_handler(void * dummy)
         printk(KERN_INFO "EEH: Detected PCI bus error on device %s\n",
                eeh_pci_name(edev->pdev));
 
+        set_current_state(TASK_INTERRUPTIBLE);  /* Don't add to load average */
         edev = handle_eeh_events(event);
 
         eeh_clear_slot(eeh_dev_to_of_node(edev), EEH_MODE_RECOVERING);
diff --git a/arch/powerpc/sysdev/cpm2_pic.c b/arch/powerpc/sysdev/cpm2_pic.c
index d3be961e2ae7..10386b676d87 100644
--- a/arch/powerpc/sysdev/cpm2_pic.c
+++ b/arch/powerpc/sysdev/cpm2_pic.c
@@ -51,8 +51,7 @@
 static intctl_cpm2_t __iomem *cpm2_intctl;
 
 static struct irq_domain *cpm2_pic_host;
-#define NR_MASK_WORDS   ((NR_IRQS + 31) / 32)
-static unsigned long ppc_cached_irq_mask[NR_MASK_WORDS];
+static unsigned long ppc_cached_irq_mask[2]; /* 2 32-bit registers */
 
 static const u_char irq_to_siureg[] = {
         1, 1, 1, 1, 1, 1, 1, 1,
diff --git a/arch/powerpc/sysdev/mpc8xx_pic.c b/arch/powerpc/sysdev/mpc8xx_pic.c
index d5f5416be310..b724622c3a0b 100644
--- a/arch/powerpc/sysdev/mpc8xx_pic.c
+++ b/arch/powerpc/sysdev/mpc8xx_pic.c
@@ -18,69 +18,45 @@
 extern int cpm_get_irq(struct pt_regs *regs);
 
 static struct irq_domain *mpc8xx_pic_host;
-#define NR_MASK_WORDS   ((NR_IRQS + 31) / 32)
-static unsigned long ppc_cached_irq_mask[NR_MASK_WORDS];
+static unsigned long mpc8xx_cached_irq_mask;
 static sysconf8xx_t __iomem *siu_reg;
 
-int cpm_get_irq(struct pt_regs *regs);
+static inline unsigned long mpc8xx_irqd_to_bit(struct irq_data *d)
+{
+        return 0x80000000 >> irqd_to_hwirq(d);
+}
 
 static void mpc8xx_unmask_irq(struct irq_data *d)
 {
-        int     bit, word;
-        unsigned int irq_nr = (unsigned int)irqd_to_hwirq(d);
-
-        bit = irq_nr & 0x1f;
-        word = irq_nr >> 5;
-
-        ppc_cached_irq_mask[word] |= (1 << (31-bit));
-        out_be32(&siu_reg->sc_simask, ppc_cached_irq_mask[word]);
+        mpc8xx_cached_irq_mask |= mpc8xx_irqd_to_bit(d);
+        out_be32(&siu_reg->sc_simask, mpc8xx_cached_irq_mask);
 }
 
 static void mpc8xx_mask_irq(struct irq_data *d)
 {
-        int     bit, word;
-        unsigned int irq_nr = (unsigned int)irqd_to_hwirq(d);
-
-        bit = irq_nr & 0x1f;
-        word = irq_nr >> 5;
-
-        ppc_cached_irq_mask[word] &= ~(1 << (31-bit));
-        out_be32(&siu_reg->sc_simask, ppc_cached_irq_mask[word]);
+        mpc8xx_cached_irq_mask &= ~mpc8xx_irqd_to_bit(d);
+        out_be32(&siu_reg->sc_simask, mpc8xx_cached_irq_mask);
 }
 
 static void mpc8xx_ack(struct irq_data *d)
 {
-        int     bit;
-        unsigned int irq_nr = (unsigned int)irqd_to_hwirq(d);
-
-        bit = irq_nr & 0x1f;
-        out_be32(&siu_reg->sc_sipend, 1 << (31-bit));
+        out_be32(&siu_reg->sc_sipend, mpc8xx_irqd_to_bit(d));
 }
 
 static void mpc8xx_end_irq(struct irq_data *d)
 {
-        int bit, word;
-        unsigned int irq_nr = (unsigned int)irqd_to_hwirq(d);
-
-        bit = irq_nr & 0x1f;
-        word = irq_nr >> 5;
-
-        ppc_cached_irq_mask[word] |= (1 << (31-bit));
-        out_be32(&siu_reg->sc_simask, ppc_cached_irq_mask[word]);
+        mpc8xx_cached_irq_mask |= mpc8xx_irqd_to_bit(d);
+        out_be32(&siu_reg->sc_simask, mpc8xx_cached_irq_mask);
 }
 
 static int mpc8xx_set_irq_type(struct irq_data *d, unsigned int flow_type)
 {
-        if (flow_type & IRQ_TYPE_EDGE_FALLING) {
-                irq_hw_number_t hw = (unsigned int)irqd_to_hwirq(d);
+        /* only external IRQ senses are programmable */
+        if ((flow_type & IRQ_TYPE_EDGE_FALLING) && !(irqd_to_hwirq(d) & 1)) {
                 unsigned int siel = in_be32(&siu_reg->sc_siel);
-
-                /* only external IRQ senses are programmable */
-                if ((hw & 1) == 0) {
-                        siel |= (0x80000000 >> hw);
-                        out_be32(&siu_reg->sc_siel, siel);
-                        __irq_set_handler_locked(d->irq, handle_edge_irq);
-                }
+                siel |= mpc8xx_irqd_to_bit(d);
+                out_be32(&siu_reg->sc_siel, siel);
+                __irq_set_handler_locked(d->irq, handle_edge_irq);
         }
         return 0;
 }
@@ -132,6 +108,9 @@ static int mpc8xx_pic_host_xlate(struct irq_domain *h, struct device_node *ct,
                 IRQ_TYPE_EDGE_FALLING,
         };
 
+        if (intspec[0] > 0x1f)
+                return 0;
+
         *out_hwirq = intspec[0];
         if (intsize > 1 && intspec[1] < 4)
                 *out_flags = map_pic_senses[intspec[1]];
diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index 9ac71ebd2c40..395af1347749 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -604,18 +604,14 @@ static struct mpic *mpic_find(unsigned int irq)
 }
 
 /* Determine if the linux irq is an IPI */
-static unsigned int mpic_is_ipi(struct mpic *mpic, unsigned int irq)
+static unsigned int mpic_is_ipi(struct mpic *mpic, unsigned int src)
 {
-        unsigned int src = virq_to_hw(irq);
-
         return (src >= mpic->ipi_vecs[0] && src <= mpic->ipi_vecs[3]);
 }
 
 /* Determine if the linux irq is a timer */
-static unsigned int mpic_is_tm(struct mpic *mpic, unsigned int irq)
+static unsigned int mpic_is_tm(struct mpic *mpic, unsigned int src)
 {
-        unsigned int src = virq_to_hw(irq);
-
         return (src >= mpic->timer_vecs[0] && src <= mpic->timer_vecs[7]);
 }
 
@@ -876,21 +872,45 @@ int mpic_set_irq_type(struct irq_data *d, unsigned int flow_type)
         if (src >= mpic->num_sources)
                 return -EINVAL;
 
+        vold = mpic_irq_read(src, MPIC_INFO(IRQ_VECTOR_PRI));
+
+        /* We don't support "none" type */
         if (flow_type == IRQ_TYPE_NONE)
-                if (mpic->senses && src < mpic->senses_count)
-                        flow_type = mpic->senses[src];
-        if (flow_type == IRQ_TYPE_NONE)
-                flow_type = IRQ_TYPE_LEVEL_LOW;
+                flow_type = IRQ_TYPE_DEFAULT;
+
+        /* Default: read HW settings */
+        if (flow_type == IRQ_TYPE_DEFAULT) {
+                switch(vold & (MPIC_INFO(VECPRI_POLARITY_MASK) |
+                               MPIC_INFO(VECPRI_SENSE_MASK))) {
+                        case MPIC_INFO(VECPRI_SENSE_EDGE) |
+                             MPIC_INFO(VECPRI_POLARITY_POSITIVE):
+                                flow_type = IRQ_TYPE_EDGE_RISING;
+                                break;
+                        case MPIC_INFO(VECPRI_SENSE_EDGE) |
+                             MPIC_INFO(VECPRI_POLARITY_NEGATIVE):
+                                flow_type = IRQ_TYPE_EDGE_FALLING;
+                                break;
+                        case MPIC_INFO(VECPRI_SENSE_LEVEL) |
+                             MPIC_INFO(VECPRI_POLARITY_POSITIVE):
+                                flow_type = IRQ_TYPE_LEVEL_HIGH;
+                                break;
+                        case MPIC_INFO(VECPRI_SENSE_LEVEL) |
+                             MPIC_INFO(VECPRI_POLARITY_NEGATIVE):
+                                flow_type = IRQ_TYPE_LEVEL_LOW;
+                                break;
+                }
+        }
 
+        /* Apply to irq desc */
         irqd_set_trigger_type(d, flow_type);
 
+        /* Apply to HW */
         if (mpic_is_ht_interrupt(mpic, src))
                 vecpri = MPIC_VECPRI_POLARITY_POSITIVE |
                         MPIC_VECPRI_SENSE_EDGE;
         else
                 vecpri = mpic_type_to_vecpri(mpic, flow_type);
 
-        vold = mpic_irq_read(src, MPIC_INFO(IRQ_VECTOR_PRI));
         vnew = vold & ~(MPIC_INFO(VECPRI_POLARITY_MASK) |
                         MPIC_INFO(VECPRI_SENSE_MASK));
         vnew |= vecpri;
@@ -1026,7 +1046,7 @@ static int mpic_host_map(struct irq_domain *h, unsigned int virq,
         irq_set_chip_and_handler(virq, chip, handle_fasteoi_irq);
 
         /* Set default irq type */
-        irq_set_irq_type(virq, IRQ_TYPE_NONE);
+        irq_set_irq_type(virq, IRQ_TYPE_DEFAULT);
 
         /* If the MPIC was reset, then all vectors have already been
          * initialized.  Otherwise, a per source lazy initialization
@@ -1417,12 +1437,6 @@ void __init mpic_assign_isu(struct mpic *mpic, unsigned int isu_num,
                 mpic->num_sources = isu_first + mpic->isu_size;
 }
 
-void __init mpic_set_default_senses(struct mpic *mpic, u8 *senses, int count)
-{
-        mpic->senses = senses;
-        mpic->senses_count = count;
-}
-
 void __init mpic_init(struct mpic *mpic)
 {
         int i, cpu;
@@ -1555,12 +1569,12 @@ void mpic_irq_set_priority(unsigned int irq, unsigned int pri)
                 return;
 
         raw_spin_lock_irqsave(&mpic_lock, flags);
-        if (mpic_is_ipi(mpic, irq)) {
+        if (mpic_is_ipi(mpic, src)) {
                 reg = mpic_ipi_read(src - mpic->ipi_vecs[0]) &
                         ~MPIC_VECPRI_PRIORITY_MASK;
                 mpic_ipi_write(src - mpic->ipi_vecs[0],
                                reg | (pri << MPIC_VECPRI_PRIORITY_SHIFT));
-        } else if (mpic_is_tm(mpic, irq)) {
+        } else if (mpic_is_tm(mpic, src)) {
                 reg = mpic_tm_read(src - mpic->timer_vecs[0]) &
                         ~MPIC_VECPRI_PRIORITY_MASK;
                 mpic_tm_write(src - mpic->timer_vecs[0],
diff --git a/arch/powerpc/sysdev/mpic_msgr.c b/arch/powerpc/sysdev/mpic_msgr.c
index 6e7fa386e76a..483d8fa72e8b 100644
--- a/arch/powerpc/sysdev/mpic_msgr.c
+++ b/arch/powerpc/sysdev/mpic_msgr.c
@@ -27,6 +27,7 @@
 
 static struct mpic_msgr **mpic_msgrs;
 static unsigned int mpic_msgr_count;
+static DEFINE_RAW_SPINLOCK(msgrs_lock);
 
 static inline void _mpic_msgr_mer_write(struct mpic_msgr *msgr, u32 value)
 {
@@ -56,12 +57,11 @@ struct mpic_msgr *mpic_msgr_get(unsigned int reg_num)
         if (reg_num >= mpic_msgr_count)
                 return ERR_PTR(-ENODEV);
 
-        raw_spin_lock_irqsave(&msgr->lock, flags);
-        if (mpic_msgrs[reg_num]->in_use == MSGR_FREE) {
-                msgr = mpic_msgrs[reg_num];
+        raw_spin_lock_irqsave(&msgrs_lock, flags);
+        msgr = mpic_msgrs[reg_num];
+        if (msgr->in_use == MSGR_FREE)
                 msgr->in_use = MSGR_INUSE;
-        }
-        raw_spin_unlock_irqrestore(&msgr->lock, flags);
+        raw_spin_unlock_irqrestore(&msgrs_lock, flags);
 
         return msgr;
 }
@@ -228,7 +228,7 @@ static __devinit int mpic_msgr_probe(struct platform_device *dev)
 
                 reg_number = block_number * MPIC_MSGR_REGISTERS_PER_BLOCK + i;
                 msgr->base = msgr_block_addr + i * MPIC_MSGR_STRIDE;
-                msgr->mer = msgr->base + MPIC_MSGR_MER_OFFSET;
+                msgr->mer = (u32 *)((u8 *)msgr->base + MPIC_MSGR_MER_OFFSET);
                 msgr->in_use = MSGR_FREE;
                 msgr->num = i;
                 raw_spin_lock_init(&msgr->lock);
diff --git a/arch/powerpc/sysdev/qe_lib/qe.c b/arch/powerpc/sysdev/qe_lib/qe.c
index ceb09cbd2329..818e763f8265 100644
--- a/arch/powerpc/sysdev/qe_lib/qe.c
+++ b/arch/powerpc/sysdev/qe_lib/qe.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2006 Freescale Semicondutor, Inc. All rights reserved.
+ * Copyright (C) 2006-2010 Freescale Semicondutor, Inc. All rights reserved.
  *
  * Authors:     Shlomi Gridish <gridish@freescale.com>
  *              Li Yang <leoli@freescale.com>
@@ -266,7 +266,19 @@ EXPORT_SYMBOL(qe_clock_source);
 static void qe_snums_init(void)
 {
         int i;
-        static const u8 snum_init[] = {
+        static const u8 snum_init_76[] = {
+                0x04, 0x05, 0x0C, 0x0D, 0x14, 0x15, 0x1C, 0x1D,
+                0x24, 0x25, 0x2C, 0x2D, 0x34, 0x35, 0x88, 0x89,
+                0x98, 0x99, 0xA8, 0xA9, 0xB8, 0xB9, 0xC8, 0xC9,
+                0xD8, 0xD9, 0xE8, 0xE9, 0x44, 0x45, 0x4C, 0x4D,
+                0x54, 0x55, 0x5C, 0x5D, 0x64, 0x65, 0x6C, 0x6D,
+                0x74, 0x75, 0x7C, 0x7D, 0x84, 0x85, 0x8C, 0x8D,
+                0x94, 0x95, 0x9C, 0x9D, 0xA4, 0xA5, 0xAC, 0xAD,
+                0xB4, 0xB5, 0xBC, 0xBD, 0xC4, 0xC5, 0xCC, 0xCD,
+                0xD4, 0xD5, 0xDC, 0xDD, 0xE4, 0xE5, 0xEC, 0xED,
+                0xF4, 0xF5, 0xFC, 0xFD,
+        };
+        static const u8 snum_init_46[] = {
                 0x04, 0x05, 0x0C, 0x0D, 0x14, 0x15, 0x1C, 0x1D,
                 0x24, 0x25, 0x2C, 0x2D, 0x34, 0x35, 0x88, 0x89,
                 0x98, 0x99, 0xA8, 0xA9, 0xB8, 0xB9, 0xC8, 0xC9,
@@ -274,9 +286,15 @@ static void qe_snums_init(void)
                 0x28, 0x29, 0x38, 0x39, 0x48, 0x49, 0x58, 0x59,
                 0x68, 0x69, 0x78, 0x79, 0x80, 0x81,
         };
+        static const u8 *snum_init;
 
         qe_num_of_snum = qe_get_num_of_snums();
 
+        if (qe_num_of_snum == 76)
+                snum_init = snum_init_76;
+        else
+                snum_init = snum_init_46;
+
         for (i = 0; i < qe_num_of_snum; i++) {
                 snums[i].num = snum_init[i];
                 snums[i].state = QE_SNUM_STATE_FREE;
diff --git a/arch/powerpc/sysdev/scom.c b/arch/powerpc/sysdev/scom.c
index 49a3ece1c6b3..702256a1ca11 100644
--- a/arch/powerpc/sysdev/scom.c
+++ b/arch/powerpc/sysdev/scom.c
@@ -22,6 +22,7 @@
 #include <linux/debugfs.h>
 #include <linux/slab.h>
 #include <linux/export.h>
+#include <asm/debug.h>
 #include <asm/prom.h>
 #include <asm/scom.h>
 
diff --git a/arch/powerpc/sysdev/xics/xics-common.c b/arch/powerpc/sysdev/xics/xics-common.c
index ea5e204e3450..cd1d18db92c6 100644
--- a/arch/powerpc/sysdev/xics/xics-common.c
+++ b/arch/powerpc/sysdev/xics/xics-common.c
@@ -188,6 +188,7 @@ void xics_migrate_irqs_away(void)
 {
         int cpu = smp_processor_id(), hw_cpu = hard_smp_processor_id();
         unsigned int irq, virq;
+        struct irq_desc *desc;
 
         /* If we used to be the default server, move to the new "boot_cpuid" */
         if (hw_cpu == xics_default_server)
@@ -202,8 +203,7 @@ void xics_migrate_irqs_away(void)
         /* Allow IPIs again... */
         icp_ops->set_priority(DEFAULT_PRIORITY);
 
-        for_each_irq(virq) {
-                struct irq_desc *desc;
+        for_each_irq_desc(virq, desc) {
                 struct irq_chip *chip;
                 long server;
                 unsigned long flags;
@@ -212,9 +212,8 @@ void xics_migrate_irqs_away(void)
                 /* We can't set affinity on ISA interrupts */
                 if (virq < NUM_ISA_INTERRUPTS)
                         continue;
-                desc = irq_to_desc(virq);
                 /* We only need to migrate enabled IRQS */
-                if (!desc || !desc->action)
+                if (!desc->action)
                         continue;
                 if (desc->irq_data.domain != xics_host)
                         continue;
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 2b7c0fbe578e..9015060919a0 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -90,7 +90,6 @@ config S390
         select HAVE_KERNEL_XZ
         select HAVE_ARCH_MUTEX_CPU_RELAX
         select HAVE_ARCH_JUMP_LABEL if !MARCH_G5
-        select HAVE_RCU_TABLE_FREE if SMP
         select ARCH_SAVE_PAGE_KEYS if HIBERNATION
         select HAVE_MEMBLOCK
         select HAVE_MEMBLOCK_NODE_MAP
diff --git a/arch/s390/defconfig b/arch/s390/defconfig
index 6cf8e26b3137..1957a9dd256d 100644
--- a/arch/s390/defconfig
+++ b/arch/s390/defconfig
@@ -1,8 +1,12 @@
 CONFIG_EXPERIMENTAL=y
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
+CONFIG_FHANDLE=y
+CONFIG_TASKSTATS=y
+CONFIG_TASK_DELAY_ACCT=y
+CONFIG_TASK_XACCT=y
+CONFIG_TASK_IO_ACCOUNTING=y
 CONFIG_AUDIT=y
-CONFIG_RCU_TRACE=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_CGROUPS=y
@@ -14,16 +18,22 @@ CONFIG_CGROUP_MEM_RES_CTLR_SWAP=y
 CONFIG_CGROUP_SCHED=y
 CONFIG_RT_GROUP_SCHED=y
 CONFIG_BLK_CGROUP=y
+CONFIG_NAMESPACES=y
 CONFIG_BLK_DEV_INITRD=y
-# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
+CONFIG_RD_BZIP2=y
+CONFIG_RD_LZMA=y
+CONFIG_RD_XZ=y
+CONFIG_RD_LZO=y
+CONFIG_EXPERT=y
 # CONFIG_COMPAT_BRK is not set
-CONFIG_SLAB=y
 CONFIG_PROFILING=y
 CONFIG_OPROFILE=y
 CONFIG_KPROBES=y
 CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
 CONFIG_MODVERSIONS=y
+CONFIG_PARTITION_ADVANCED=y
+CONFIG_IBM_PARTITION=y
 CONFIG_DEFAULT_DEADLINE=y
 CONFIG_NO_HZ=y
 CONFIG_HIGH_RES_TIMERS=y
@@ -34,18 +44,15 @@ CONFIG_KSM=y
 CONFIG_BINFMT_MISC=m
 CONFIG_CMM=m
 CONFIG_HZ_100=y
-CONFIG_KEXEC=y
-CONFIG_PM=y
+CONFIG_CRASH_DUMP=y
 CONFIG_HIBERNATION=y
 CONFIG_PACKET=y
 CONFIG_UNIX=y
 CONFIG_NET_KEY=y
-CONFIG_AFIUCV=m
 CONFIG_INET=y
 CONFIG_IP_MULTICAST=y
 # CONFIG_INET_LRO is not set
 CONFIG_IPV6=y
-CONFIG_NET_SCTPPROBE=m
 CONFIG_L2TP=m
 CONFIG_L2TP_DEBUGFS=m
 CONFIG_VLAN_8021Q=y
@@ -84,15 +91,14 @@ CONFIG_SCSI_CONSTANTS=y
 CONFIG_SCSI_LOGGING=y
 CONFIG_SCSI_SCAN_ASYNC=y
 CONFIG_ZFCP=y
-CONFIG_ZFCP_DIF=y
 CONFIG_NETDEVICES=y
-CONFIG_DUMMY=m
 CONFIG_BONDING=m
+CONFIG_DUMMY=m
 CONFIG_EQUALIZER=m
 CONFIG_TUN=m
-CONFIG_NET_ETHERNET=y
 CONFIG_VIRTIO_NET=y
 CONFIG_RAW_DRIVER=m
+CONFIG_VIRTIO_BALLOON=y
 CONFIG_EXT2_FS=y
 CONFIG_EXT3_FS=y
 # CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
@@ -103,27 +109,21 @@ CONFIG_PROC_KCORE=y
 CONFIG_TMPFS=y
 CONFIG_TMPFS_POSIX_ACL=y
 # CONFIG_NETWORK_FILESYSTEMS is not set
-CONFIG_PARTITION_ADVANCED=y
-CONFIG_IBM_PARTITION=y
-CONFIG_DLM=m
 CONFIG_MAGIC_SYSRQ=y
-CONFIG_DEBUG_KERNEL=y
 CONFIG_TIMER_STATS=y
 CONFIG_PROVE_LOCKING=y
 CONFIG_PROVE_RCU=y
 CONFIG_LOCK_STAT=y
 CONFIG_DEBUG_LOCKDEP=y
-CONFIG_DEBUG_SPINLOCK_SLEEP=y
 CONFIG_DEBUG_LIST=y
 CONFIG_DEBUG_NOTIFIERS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
+CONFIG_RCU_TRACE=y
 CONFIG_KPROBES_SANITY_TEST=y
 CONFIG_DEBUG_FORCE_WEAK_PER_CPU=y
 CONFIG_CPU_NOTIFIER_ERROR_INJECT=m
 CONFIG_LATENCYTOP=y
-CONFIG_SYSCTL_SYSCALL_CHECK=y
 CONFIG_DEBUG_PAGEALLOC=y
-# CONFIG_FTRACE is not set
+CONFIG_BLK_DEV_IO_TRACE=y
 # CONFIG_STRICT_DEVMEM is not set
 CONFIG_CRYPTO_NULL=m
 CONFIG_CRYPTO_CRYPTD=m
@@ -173,4 +173,3 @@ CONFIG_CRYPTO_SHA512_S390=m
 CONFIG_CRYPTO_DES_S390=m
 CONFIG_CRYPTO_AES_S390=m
 CONFIG_CRC7=m
-CONFIG_VIRTIO_BALLOON=y
diff --git a/arch/s390/include/asm/facility.h b/arch/s390/include/asm/facility.h
index 1e5b27edc0c9..2ee66a65f2d4 100644
--- a/arch/s390/include/asm/facility.h
+++ b/arch/s390/include/asm/facility.h
@@ -38,12 +38,11 @@ static inline void stfle(u64 *stfle_fac_list, int size)
         unsigned long nr;
 
         preempt_disable();
-        S390_lowcore.stfl_fac_list = 0;
         asm volatile(
                 "       .insn s,0xb2b10000,0(0)\n" /* stfl */
                 "0:\n"
                 EX_TABLE(0b, 0b)
-                : "=m" (S390_lowcore.stfl_fac_list));
+                : "+m" (S390_lowcore.stfl_fac_list));
         nr = 4; /* bytes stored by stfl */
         memcpy(stfle_fac_list, &S390_lowcore.stfl_fac_list, 4);
         if (S390_lowcore.stfl_fac_list & 0x01000000) {
diff --git a/arch/s390/include/asm/pgalloc.h b/arch/s390/include/asm/pgalloc.h
index 8eef9b5b3cf4..78e3041919de 100644
--- a/arch/s390/include/asm/pgalloc.h
+++ b/arch/s390/include/asm/pgalloc.h
@@ -22,10 +22,7 @@ void crst_table_free(struct mm_struct *, unsigned long *);
 
 unsigned long *page_table_alloc(struct mm_struct *, unsigned long);
 void page_table_free(struct mm_struct *, unsigned long *);
-#ifdef CONFIG_HAVE_RCU_TABLE_FREE
 void page_table_free_rcu(struct mmu_gather *, unsigned long *);
-void __tlb_remove_table(void *_table);
-#endif
 
 static inline void clear_table(unsigned long *s, unsigned long val, size_t n)
 {
diff --git a/arch/s390/include/asm/swab.h b/arch/s390/include/asm/swab.h
index 6bdee21c077e..a3e4ebb32090 100644
--- a/arch/s390/include/asm/swab.h
+++ b/arch/s390/include/asm/swab.h
@@ -77,7 +77,7 @@ static inline __u16 __arch_swab16p(const __u16 *x)
         
         asm volatile(
 #ifndef __s390x__
-                "       icm     %0,2,%O+1(%R1)\n"
+                "       icm     %0,2,%O1+1(%R1)\n"
                 "       ic      %0,%1\n"
                 : "=&d" (result) : "Q" (*x) : "cc");
 #else /* __s390x__ */
diff --git a/arch/s390/include/asm/tlb.h b/arch/s390/include/asm/tlb.h
index c687a2c83462..775a5eea8f9e 100644
--- a/arch/s390/include/asm/tlb.h
+++ b/arch/s390/include/asm/tlb.h
@@ -30,14 +30,10 @@
 
 struct mmu_gather {
         struct mm_struct *mm;
-#ifdef CONFIG_HAVE_RCU_TABLE_FREE
         struct mmu_table_batch *batch;
-#endif
         unsigned int fullmm;
-        unsigned int need_flush;
 };
 
-#ifdef CONFIG_HAVE_RCU_TABLE_FREE
 struct mmu_table_batch {
         struct rcu_head         rcu;
         unsigned int            nr;
@@ -49,7 +45,6 @@ struct mmu_table_batch {
 
 extern void tlb_table_flush(struct mmu_gather *tlb);
 extern void tlb_remove_table(struct mmu_gather *tlb, void *table);
-#endif
 
 static inline void tlb_gather_mmu(struct mmu_gather *tlb,
                                   struct mm_struct *mm,
@@ -57,29 +52,20 @@ static inline void tlb_gather_mmu(struct mmu_gather *tlb,
 {
         tlb->mm = mm;
         tlb->fullmm = full_mm_flush;
-        tlb->need_flush = 0;
-#ifdef CONFIG_HAVE_RCU_TABLE_FREE
         tlb->batch = NULL;
-#endif
         if (tlb->fullmm)
                 __tlb_flush_mm(mm);
 }
 
 static inline void tlb_flush_mmu(struct mmu_gather *tlb)
 {
-        if (!tlb->need_flush)
-                return;
-        tlb->need_flush = 0;
-        __tlb_flush_mm(tlb->mm);
-#ifdef CONFIG_HAVE_RCU_TABLE_FREE
         tlb_table_flush(tlb);
-#endif
 }
 
 static inline void tlb_finish_mmu(struct mmu_gather *tlb,
                                   unsigned long start, unsigned long end)
 {
-        tlb_flush_mmu(tlb);
+        tlb_table_flush(tlb);
 }
 
 /*
@@ -105,10 +91,8 @@ static inline void tlb_remove_page(struct mmu_gather *tlb, struct page *page)
 static inline void pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte,
                                 unsigned long address)
 {
-#ifdef CONFIG_HAVE_RCU_TABLE_FREE
         if (!tlb->fullmm)
                 return page_table_free_rcu(tlb, (unsigned long *) pte);
-#endif
         page_table_free(tlb->mm, (unsigned long *) pte);
 }
 
@@ -125,10 +109,8 @@ static inline void pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd,
 #ifdef __s390x__
         if (tlb->mm->context.asce_limit <= (1UL << 31))
                 return;
-#ifdef CONFIG_HAVE_RCU_TABLE_FREE
         if (!tlb->fullmm)
                 return tlb_remove_table(tlb, pmd);
-#endif
         crst_table_free(tlb->mm, (unsigned long *) pmd);
 #endif
 }
@@ -146,10 +128,8 @@ static inline void pud_free_tlb(struct mmu_gather *tlb, pud_t *pud,
 #ifdef __s390x__
         if (tlb->mm->context.asce_limit <= (1UL << 42))
                 return;
-#ifdef CONFIG_HAVE_RCU_TABLE_FREE
         if (!tlb->fullmm)
                 return tlb_remove_table(tlb, pud);
-#endif
         crst_table_free(tlb->mm, (unsigned long *) pud);
 #endif
 }
diff --git a/arch/s390/kernel/head.S b/arch/s390/kernel/head.S
index c27a0727f930..adccd908ebc7 100644
--- a/arch/s390/kernel/head.S
+++ b/arch/s390/kernel/head.S
@@ -474,9 +474,9 @@ ENTRY(startup_kdump)
         stck    __LC_LAST_UPDATE_CLOCK
         spt     5f-.LPG0(%r13)
         mvc     __LC_LAST_UPDATE_TIMER(8),5f-.LPG0(%r13)
+        xc      __LC_STFL_FAC_LIST(8),__LC_STFL_FAC_LIST
 #ifndef CONFIG_MARCH_G5
         # check capabilities against MARCH_{G5,Z900,Z990,Z9_109,Z10}
-        xc      __LC_STFL_FAC_LIST(8),__LC_STFL_FAC_LIST
         .insn   s,0xb2b10000,__LC_STFL_FAC_LIST # store facility list
         tm      __LC_STFL_FAC_LIST,0x01 # stfle available ?
         jz      0f
diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c
index 1c2cdd59ccd0..8a22c27219dd 100644
--- a/arch/s390/kernel/irq.c
+++ b/arch/s390/kernel/irq.c
@@ -118,9 +118,10 @@ asmlinkage void do_softirq(void)
                                          "a" (__do_softirq)
                                      : "0", "1", "2", "3", "4", "5", "14",
                                        "cc", "memory" );
-                } else
+                } else {
                         /* We are already on the async stack. */
                         __do_softirq();
+                }
         }
 
         local_irq_restore(flags);
@@ -192,11 +193,12 @@ int unregister_external_interrupt(u16 code, ext_int_handler_t handler)
         int index = ext_hash(code);
 
         spin_lock_irqsave(&ext_int_hash_lock, flags);
-        list_for_each_entry_rcu(p, &ext_int_hash[index], entry)
+        list_for_each_entry_rcu(p, &ext_int_hash[index], entry) {
                 if (p->code == code && p->handler == handler) {
                         list_del_rcu(&p->entry);
                         kfree_rcu(p, rcu);
                 }
+        }
         spin_unlock_irqrestore(&ext_int_hash_lock, flags);
         return 0;
 }
@@ -211,9 +213,10 @@ void __irq_entry do_extint(struct pt_regs *regs, struct ext_code ext_code,
 
         old_regs = set_irq_regs(regs);
         irq_enter();
-        if (S390_lowcore.int_clock >= S390_lowcore.clock_comparator)
+        if (S390_lowcore.int_clock >= S390_lowcore.clock_comparator) {
                 /* Serve timer interrupts first. */
                 clock_comparator_work();
+        }
         kstat_cpu(smp_processor_id()).irqs[EXTERNAL_INTERRUPT]++;
         if (ext_code.code != 0x1004)
                 __get_cpu_var(s390_idle).nohz_delay = 1;
diff --git a/arch/s390/kernel/perf_cpum_cf.c b/arch/s390/kernel/perf_cpum_cf.c
index 46405086479c..cb019f429e88 100644
--- a/arch/s390/kernel/perf_cpum_cf.c
+++ b/arch/s390/kernel/perf_cpum_cf.c
@@ -178,7 +178,7 @@ static void cpumf_pmu_enable(struct pmu *pmu)
         err = lcctl(cpuhw->state);
         if (err) {
                 pr_err("Enabling the performance measuring unit "
-                       "failed with rc=%lx\n", err);
+                       "failed with rc=%x\n", err);
                 return;
         }
 
@@ -203,7 +203,7 @@ static void cpumf_pmu_disable(struct pmu *pmu)
         err = lcctl(inactive);
         if (err) {
                 pr_err("Disabling the performance measuring unit "
-                       "failed with rc=%lx\n", err);
+                       "failed with rc=%x\n", err);
                 return;
         }
 
diff --git a/arch/s390/mm/maccess.c b/arch/s390/mm/maccess.c
index 7bb15fcca75e..e1335dc2b1b7 100644
--- a/arch/s390/mm/maccess.c
+++ b/arch/s390/mm/maccess.c
@@ -61,21 +61,14 @@ long probe_kernel_write(void *dst, const void *src, size_t size)
         return copied < 0 ? -EFAULT : 0;
 }
 
-/*
- * Copy memory in real mode (kernel to kernel)
- */
-int memcpy_real(void *dest, void *src, size_t count)
+static int __memcpy_real(void *dest, void *src, size_t count)
 {
         register unsigned long _dest asm("2") = (unsigned long) dest;
         register unsigned long _len1 asm("3") = (unsigned long) count;
         register unsigned long _src  asm("4") = (unsigned long) src;
         register unsigned long _len2 asm("5") = (unsigned long) count;
-        unsigned long flags;
         int rc = -EFAULT;
 
-        if (!count)
-                return 0;
-        flags = __arch_local_irq_stnsm(0xf8UL);
         asm volatile (
                 "0:     mvcle   %1,%2,0x0\n"
                 "1:     jo      0b\n"
@@ -86,7 +79,23 @@ int memcpy_real(void *dest, void *src, size_t count)
                   "+d" (_len2), "=m" (*((long *) dest))
                 : "m" (*((long *) src))
                 : "cc", "memory");
-        arch_local_irq_restore(flags);
+        return rc;
+}
+
+/*
+ * Copy memory in real mode (kernel to kernel)
+ */
+int memcpy_real(void *dest, void *src, size_t count)
+{
+        unsigned long flags;
+        int rc;
+
+        if (!count)
+                return 0;
+        local_irq_save(flags);
+        __arch_local_irq_stnsm(0xfbUL);
+        rc = __memcpy_real(dest, src, count);
+        local_irq_restore(flags);
         return rc;
 }
 
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index 373adf69b01c..6e765bf00670 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -678,8 +678,6 @@ void page_table_free(struct mm_struct *mm, unsigned long *table)
         }
 }
 
-#ifdef CONFIG_HAVE_RCU_TABLE_FREE
-
 static void __page_table_free_rcu(void *table, unsigned bit)
 {
         struct page *page;
@@ -733,7 +731,66 @@ void __tlb_remove_table(void *_table)
                 free_pages((unsigned long) table, ALLOC_ORDER);
 }
 
-#endif
+static void tlb_remove_table_smp_sync(void *arg)
+{
+        /* Simply deliver the interrupt */
+}
+
+static void tlb_remove_table_one(void *table)
+{
+        /*
+         * This isn't an RCU grace period and hence the page-tables cannot be
+         * assumed to be actually RCU-freed.
+         *
+         * It is however sufficient for software page-table walkers that rely
+         * on IRQ disabling. See the comment near struct mmu_table_batch.
+         */
+        smp_call_function(tlb_remove_table_smp_sync, NULL, 1);
+        __tlb_remove_table(table);
+}
+
+static void tlb_remove_table_rcu(struct rcu_head *head)
+{
+        struct mmu_table_batch *batch;
+        int i;
+
+        batch = container_of(head, struct mmu_table_batch, rcu);
+
+        for (i = 0; i < batch->nr; i++)
+                __tlb_remove_table(batch->tables[i]);
+
+        free_page((unsigned long)batch);
+}
+
+void tlb_table_flush(struct mmu_gather *tlb)
+{
+        struct mmu_table_batch **batch = &tlb->batch;
+
+        if (*batch) {
+                __tlb_flush_mm(tlb->mm);
+                call_rcu_sched(&(*batch)->rcu, tlb_remove_table_rcu);
+                *batch = NULL;
+        }
+}
+
+void tlb_remove_table(struct mmu_gather *tlb, void *table)
+{
+        struct mmu_table_batch **batch = &tlb->batch;
+
+        if (*batch == NULL) {
+                *batch = (struct mmu_table_batch *)
+                        __get_free_page(GFP_NOWAIT | __GFP_NOWARN);
+                if (*batch == NULL) {
+                        __tlb_flush_mm(tlb->mm);
+                        tlb_remove_table_one(table);
+                        return;
+                }
+                (*batch)->nr = 0;
+        }
+        (*batch)->tables[(*batch)->nr++] = table;
+        if ((*batch)->nr == MAX_TABLE_BATCH)
+                tlb_table_flush(tlb);
+}
 
 /*
  * switch on pgstes for its userspace process (for kvm)
diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug
index c1d5a820b1aa..5f2bb4242c0f 100644
--- a/arch/sh/Kconfig.debug
+++ b/arch/sh/Kconfig.debug
@@ -61,6 +61,7 @@ config DUMP_CODE
 config DWARF_UNWINDER
         bool "Enable the DWARF unwinder for stacktraces"
         select FRAME_POINTER
+        depends on SUPERH32
         default n
         help
           Enabling this option will make stacktraces more accurate, at
diff --git a/arch/sh/boards/board-sh7785lcr.c b/arch/sh/boards/board-sh7785lcr.c
index d879848f3cdd..d0d6221d7c2e 100644
--- a/arch/sh/boards/board-sh7785lcr.c
+++ b/arch/sh/boards/board-sh7785lcr.c
@@ -28,6 +28,7 @@
 #include <cpu/sh7785.h>
 #include <asm/heartbeat.h>
 #include <asm/clock.h>
+#include <asm/bl_bit.h>
 
 /*
  * NOTE: This board has 2 physical memory maps.
diff --git a/arch/sh/boards/mach-hp6xx/pm.c b/arch/sh/boards/mach-hp6xx/pm.c
index adc9b4bba828..8b50cf763c06 100644
--- a/arch/sh/boards/mach-hp6xx/pm.c
+++ b/arch/sh/boards/mach-hp6xx/pm.c
@@ -14,6 +14,7 @@
 #include <linux/gfp.h>
 #include <asm/io.h>
 #include <asm/hd64461.h>
+#include <asm/bl_bit.h>
 #include <mach/hp6xx.h>
 #include <cpu/dac.h>
 #include <asm/freq.h>
diff --git a/arch/sh/drivers/dma/dma-sysfs.c b/arch/sh/drivers/dma/dma-sysfs.c
index b1cb2715ad6e..67ee95603813 100644
--- a/arch/sh/drivers/dma/dma-sysfs.c
+++ b/arch/sh/drivers/dma/dma-sysfs.c
@@ -54,7 +54,7 @@ static int __init dma_subsys_init(void)
         if (unlikely(ret))
                 return ret;
 
-        return device_create_file(dma_subsys.dev_root, &dev_attr_devices.attr);
+        return device_create_file(dma_subsys.dev_root, &dev_attr_devices);
 }
 postcore_initcall(dma_subsys_init);
 
diff --git a/arch/sh/include/asm/atomic.h b/arch/sh/include/asm/atomic.h
index 37f2f4a55231..f4c1c20bcdf6 100644
--- a/arch/sh/include/asm/atomic.h
+++ b/arch/sh/include/asm/atomic.h
@@ -11,7 +11,7 @@
 #include <linux/types.h>
 #include <asm/cmpxchg.h>
 
-#define ATOMIC_INIT(i)  ( (atomic_t) { (i) } )
+#define ATOMIC_INIT(i)  { (i) }
 
 #define atomic_read(v)          (*(volatile int *)&(v)->counter)
 #define atomic_set(v,i)         ((v)->counter = (i))
diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h
index 1a73c3e759a7..8bd965e00a15 100644
--- a/arch/sh/include/asm/dma-mapping.h
+++ b/arch/sh/include/asm/dma-mapping.h
@@ -52,25 +52,31 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
         return dma_addr == 0;
 }
 
-static inline void *dma_alloc_coherent(struct device *dev, size_t size,
-                                       dma_addr_t *dma_handle, gfp_t gfp)
+#define dma_alloc_coherent(d,s,h,f)     dma_alloc_attrs(d,s,h,f,NULL)
+
+static inline void *dma_alloc_attrs(struct device *dev, size_t size,
+                                    dma_addr_t *dma_handle, gfp_t gfp,
+                                    struct dma_attrs *attrs)
 {
         struct dma_map_ops *ops = get_dma_ops(dev);
         void *memory;
 
         if (dma_alloc_from_coherent(dev, size, dma_handle, &memory))
                 return memory;
-        if (!ops->alloc_coherent)
+        if (!ops->alloc)
                 return NULL;
 
-        memory = ops->alloc_coherent(dev, size, dma_handle, gfp);
+        memory = ops->alloc(dev, size, dma_handle, gfp, attrs);
         debug_dma_alloc_coherent(dev, size, *dma_handle, memory);
 
         return memory;
 }
 
-static inline void dma_free_coherent(struct device *dev, size_t size,
-                                     void *vaddr, dma_addr_t dma_handle)
+#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL)
+
+static inline void dma_free_attrs(struct device *dev, size_t size,
+                                  void *vaddr, dma_addr_t dma_handle,
+                                  struct dma_attrs *attrs)
 {
         struct dma_map_ops *ops = get_dma_ops(dev);
 
@@ -78,14 +84,16 @@ static inline void dma_free_coherent(struct device *dev, size_t size,
                 return;
 
         debug_dma_free_coherent(dev, size, vaddr, dma_handle);
-        if (ops->free_coherent)
-                ops->free_coherent(dev, size, vaddr, dma_handle);
+        if (ops->free)
+                ops->free(dev, size, vaddr, dma_handle, attrs);
 }
 
 /* arch/sh/mm/consistent.c */
 extern void *dma_generic_alloc_coherent(struct device *dev, size_t size,
-                                        dma_addr_t *dma_addr, gfp_t flag);
+                                        dma_addr_t *dma_addr, gfp_t flag,
+                                        struct dma_attrs *attrs);
 extern void dma_generic_free_coherent(struct device *dev, size_t size,
-                                      void *vaddr, dma_addr_t dma_handle);
+                                      void *vaddr, dma_addr_t dma_handle,
+                                      struct dma_attrs *attrs);
 
 #endif /* __ASM_SH_DMA_MAPPING_H */
diff --git a/arch/sh/kernel/cpu/fpu.c b/arch/sh/kernel/cpu/fpu.c
index 7f1b70cace35..f8f7af51c128 100644
--- a/arch/sh/kernel/cpu/fpu.c
+++ b/arch/sh/kernel/cpu/fpu.c
@@ -2,6 +2,7 @@
 #include <linux/slab.h>
 #include <asm/processor.h>
 #include <asm/fpu.h>
+#include <asm/traps.h>
 
 int init_fpu(struct task_struct *tsk)
 {
diff --git a/arch/sh/kernel/cpu/sh2a/fpu.c b/arch/sh/kernel/cpu/sh2a/fpu.c
index 488d24e0cdf0..98bbaa447c93 100644
--- a/arch/sh/kernel/cpu/sh2a/fpu.c
+++ b/arch/sh/kernel/cpu/sh2a/fpu.c
@@ -14,6 +14,7 @@
 #include <asm/processor.h>
 #include <asm/io.h>
 #include <asm/fpu.h>
+#include <asm/traps.h>
 
 /* The PR (precision) bit in the FP Status Register must be clear when
  * an frchg instruction is executed, otherwise the instruction is undefined.
diff --git a/arch/sh/kernel/cpu/sh4/fpu.c b/arch/sh/kernel/cpu/sh4/fpu.c
index e74cd6c0f10d..69ab4d3c8d41 100644
--- a/arch/sh/kernel/cpu/sh4/fpu.c
+++ b/arch/sh/kernel/cpu/sh4/fpu.c
@@ -16,6 +16,7 @@
 #include <cpu/fpu.h>
 #include <asm/processor.h>
 #include <asm/fpu.h>
+#include <asm/traps.h>
 
 /* The PR (precision) bit in the FP Status Register must be clear when
  * an frchg instruction is executed, otherwise the instruction is undefined.
diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7757.c b/arch/sh/kernel/cpu/sh4a/clock-sh7757.c
index 5853989586ed..04ab5aeaf920 100644
--- a/arch/sh/kernel/cpu/sh4a/clock-sh7757.c
+++ b/arch/sh/kernel/cpu/sh4a/clock-sh7757.c
@@ -113,7 +113,7 @@ static struct clk_lookup lookups[] = {
         CLKDEV_CON_ID("cpu_clk", &div4_clks[DIV4_I]),
 
         /* MSTP32 clocks */
-        CLKDEV_CON_ID("sdhi0", &mstp_clks[MSTP004]),
+        CLKDEV_DEV_ID("sh_mobile_sdhi.0", &mstp_clks[MSTP004]),
         CLKDEV_CON_ID("riic0", &mstp_clks[MSTP000]),
         CLKDEV_CON_ID("riic1", &mstp_clks[MSTP000]),
         CLKDEV_CON_ID("riic2", &mstp_clks[MSTP000]),
diff --git a/arch/sh/kernel/cpu/shmobile/pm.c b/arch/sh/kernel/cpu/shmobile/pm.c
index a6f95ae4aae7..08d27fac8d08 100644
--- a/arch/sh/kernel/cpu/shmobile/pm.c
+++ b/arch/sh/kernel/cpu/shmobile/pm.c
@@ -16,6 +16,7 @@
 #include <asm/suspend.h>
 #include <asm/uaccess.h>
 #include <asm/cacheflush.h>
+#include <asm/bl_bit.h>
 
 /*
  * Notifier lists for pre/post sleep notification
diff --git a/arch/sh/kernel/dma-nommu.c b/arch/sh/kernel/dma-nommu.c
index 3c55b87f8b63..5b0bfcda6d0b 100644
--- a/arch/sh/kernel/dma-nommu.c
+++ b/arch/sh/kernel/dma-nommu.c
@@ -63,8 +63,8 @@ static void nommu_sync_sg(struct device *dev, struct scatterlist *sg,
 #endif
 
 struct dma_map_ops nommu_dma_ops = {
-        .alloc_coherent         = dma_generic_alloc_coherent,
-        .free_coherent          = dma_generic_free_coherent,
+        .alloc                  = dma_generic_alloc_coherent,
+        .free                   = dma_generic_free_coherent,
         .map_page               = nommu_map_page,
         .map_sg                 = nommu_map_sg,
 #ifdef CONFIG_DMA_NONCOHERENT
diff --git a/arch/sh/kernel/idle.c b/arch/sh/kernel/idle.c
index 64852ecc6881..ee226e20c20c 100644
--- a/arch/sh/kernel/idle.c
+++ b/arch/sh/kernel/idle.c
@@ -17,8 +17,8 @@
 #include <linux/irqflags.h>
 #include <linux/smp.h>
 #include <linux/cpuidle.h>
-#include <asm/pgalloc.h>
 #include <linux/atomic.h>
+#include <asm/pgalloc.h>
 #include <asm/smp.h>
 #include <asm/bl_bit.h>
 
diff --git a/arch/sh/kernel/kgdb.c b/arch/sh/kernel/kgdb.c
index efb6d398dec3..b117781bfea2 100644
--- a/arch/sh/kernel/kgdb.c
+++ b/arch/sh/kernel/kgdb.c
@@ -14,6 +14,7 @@
 #include <linux/irq.h>
 #include <linux/io.h>
 #include <asm/cacheflush.h>
+#include <asm/traps.h>
 
 /* Macros for single step instruction identification */
 #define OPCODE_BT(op)           (((op) & 0xff00) == 0x8900)
diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c
index f72e3a951588..94273aaf78c1 100644
--- a/arch/sh/kernel/process_32.c
+++ b/arch/sh/kernel/process_32.c
@@ -26,6 +26,7 @@
 #include <asm/mmu_context.h>
 #include <asm/fpu.h>
 #include <asm/syscalls.h>
+#include <asm/switch_to.h>
 
 void show_regs(struct pt_regs * regs)
 {
diff --git a/arch/sh/kernel/smp.c b/arch/sh/kernel/smp.c
index a17a14d32340..eaebdf6a5c77 100644
--- a/arch/sh/kernel/smp.c
+++ b/arch/sh/kernel/smp.c
@@ -27,6 +27,7 @@
 #include <asm/smp.h>
 #include <asm/cacheflush.h>
 #include <asm/sections.h>
+#include <asm/setup.h>
 
 int __cpu_number_map[NR_CPUS];          /* Map physical to logical */
 int __cpu_logical_map[NR_CPUS];         /* Map logical to physical */
diff --git a/arch/sh/kernel/vsyscall/vsyscall-sigreturn.S b/arch/sh/kernel/vsyscall/vsyscall-sigreturn.S
index 555a64f124ca..23af17584054 100644
--- a/arch/sh/kernel/vsyscall/vsyscall-sigreturn.S
+++ b/arch/sh/kernel/vsyscall/vsyscall-sigreturn.S
@@ -34,6 +34,41 @@ __kernel_rt_sigreturn:
 1:      .short  __NR_rt_sigreturn
 .LEND_rt_sigreturn:
         .size __kernel_rt_sigreturn,.-.LSTART_rt_sigreturn
+        .previous
 
         .section .eh_frame,"a",@progbits
+.LCIE1:
+        .ualong .LCIE1_end - .LCIE1_start
+.LCIE1_start:
+        .ualong 0               /* CIE ID */
+        .byte   0x1             /* Version number */
+        .string "zRS"           /* NUL-terminated augmentation string */
+        .uleb128 0x1            /* Code alignment factor */
+        .sleb128 -4             /* Data alignment factor */
+        .byte   0x11            /* Return address register column */
+        .uleb128 0x1            /* Augmentation length and data */
+        .byte 0x1b              /* DW_EH_PE_pcrel | DW_EH_PE_sdata4. */
+        .byte   0xc, 0xf, 0x0   /* DW_CFA_def_cfa: r15 ofs 0 */
+
+        .align 2
+.LCIE1_end:
+
+        .ualong .LFDE0_end-.LFDE0_start /* Length FDE0 */
+.LFDE0_start:
+        .ualong .LFDE0_start-.LCIE1     /* CIE pointer */
+        .ualong .LSTART_sigreturn-.     /* PC-relative start address */
+        .ualong .LEND_sigreturn-.LSTART_sigreturn
+        .uleb128 0                      /* Augmentation */
+        .align 2
+.LFDE0_end:
+
+        .ualong .LFDE1_end-.LFDE1_start /* Length FDE1 */
+.LFDE1_start:
+        .ualong .LFDE1_start-.LCIE1     /* CIE pointer */
+        .ualong .LSTART_rt_sigreturn-.  /* PC-relative start address */
+        .ualong .LEND_rt_sigreturn-.LSTART_rt_sigreturn
+        .uleb128 0                      /* Augmentation */
+        .align 2
+.LFDE1_end:
+
         .previous
diff --git a/arch/sh/kernel/vsyscall/vsyscall-trapa.S b/arch/sh/kernel/vsyscall/vsyscall-trapa.S
index 3e70f851cdc6..0eb74d00690a 100644
--- a/arch/sh/kernel/vsyscall/vsyscall-trapa.S
+++ b/arch/sh/kernel/vsyscall/vsyscall-trapa.S
@@ -3,37 +3,34 @@
         .type __kernel_vsyscall,@function
 __kernel_vsyscall:
 .LSTART_vsyscall:
-        /* XXX: We'll have to do something here once we opt to use the vDSO
-         * page for something other than the signal trampoline.. as well as
-         * fill out .eh_frame -- PFM. */
+        trapa   #0x10
+         nop
 .LEND_vsyscall:
         .size __kernel_vsyscall,.-.LSTART_vsyscall
+        .previous
 
         .section .eh_frame,"a",@progbits
-        .previous
 .LCIE:
         .ualong .LCIE_end - .LCIE_start
 .LCIE_start:
         .ualong 0               /* CIE ID */
         .byte   0x1             /* Version number */
-        .string "zRS"           /* NUL-terminated augmentation string */
+        .string "zR"            /* NUL-terminated augmentation string */
         .uleb128 0x1            /* Code alignment factor */
         .sleb128 -4             /* Data alignment factor */
         .byte   0x11            /* Return address register column */
-                                /* Augmentation length and data (none) */
-        .byte   0xc             /* DW_CFA_def_cfa */
-        .uleb128 0xf            /* r15 */
-        .uleb128 0x0            /* offset 0 */
-
+        .uleb128 0x1            /* Augmentation length and data */
+        .byte 0x1b              /* DW_EH_PE_pcrel | DW_EH_PE_sdata4. */
+        .byte   0xc,0xf,0x0     /* DW_CFA_def_cfa: r15 ofs 0 */
         .align 2
 .LCIE_end:
 
         .ualong .LFDE_end-.LFDE_start   /* Length FDE */
 .LFDE_start:
-        .ualong .LCIE                   /* CIE pointer */
-        .ualong .LSTART_vsyscall-.      /* start address */
+        .ualong .LFDE_start-.LCIE       /* CIE pointer */
+        .ualong .LSTART_vsyscall-.      /* PC-relative start address */
         .ualong .LEND_vsyscall-.LSTART_vsyscall
-        .uleb128 0
+        .uleb128 0                      /* Augmentation */
         .align 2
 .LFDE_end:
         .previous
diff --git a/arch/sh/mm/cache-sh4.c b/arch/sh/mm/cache-sh4.c
index 112fea12522a..0e529285b28d 100644
--- a/arch/sh/mm/cache-sh4.c
+++ b/arch/sh/mm/cache-sh4.c
@@ -18,6 +18,7 @@
 #include <linux/highmem.h>
 #include <asm/pgtable.h>
 #include <asm/mmu_context.h>
+#include <asm/cache_insns.h>
 #include <asm/cacheflush.h>
 
 /*
diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c
index f251b5f27652..b81d9dbf9fef 100644
--- a/arch/sh/mm/consistent.c
+++ b/arch/sh/mm/consistent.c
@@ -33,7 +33,8 @@ static int __init dma_init(void)
 fs_initcall(dma_init);
 
 void *dma_generic_alloc_coherent(struct device *dev, size_t size,
-                                 dma_addr_t *dma_handle, gfp_t gfp)
+                                 dma_addr_t *dma_handle, gfp_t gfp,
+                                 struct dma_attrs *attrs)
 {
         void *ret, *ret_nocache;
         int order = get_order(size);
@@ -64,7 +65,8 @@ void *dma_generic_alloc_coherent(struct device *dev, size_t size,
 }
 
 void dma_generic_free_coherent(struct device *dev, size_t size,
-                               void *vaddr, dma_addr_t dma_handle)
+                               void *vaddr, dma_addr_t dma_handle,
+                               struct dma_attrs *attrs)
 {
         int order = get_order(size);
         unsigned long pfn = dma_handle >> PAGE_SHIFT;
diff --git a/arch/sh/mm/fault_32.c b/arch/sh/mm/fault_32.c
index 324eef93c900..e99b104d967a 100644
--- a/arch/sh/mm/fault_32.c
+++ b/arch/sh/mm/fault_32.c
@@ -86,7 +86,7 @@ static noinline int vmalloc_fault(unsigned long address)
         pte_t *pte_k;
 
         /* Make sure we are in vmalloc/module/P3 area: */
-        if (!(address >= VMALLOC_START && address < P3_ADDR_MAX))
+        if (!(address >= P3SEG && address < P3_ADDR_MAX))
                 return -1;
 
         /*
diff --git a/arch/sh/mm/flush-sh4.c b/arch/sh/mm/flush-sh4.c
index 75a17f5bfa14..0b85dd9dd3a7 100644
--- a/arch/sh/mm/flush-sh4.c
+++ b/arch/sh/mm/flush-sh4.c
@@ -1,5 +1,6 @@
 #include <linux/mm.h>
 #include <asm/mmu_context.h>
+#include <asm/cache_insns.h>
 #include <asm/cacheflush.h>
 #include <asm/traps.h>
 
diff --git a/arch/sh/mm/sram.c b/arch/sh/mm/sram.c
index bc156ec4545e..2d8fa718d55e 100644
--- a/arch/sh/mm/sram.c
+++ b/arch/sh/mm/sram.c
@@ -9,6 +9,7 @@
  */
 #include <linux/init.h>
 #include <linux/kernel.h>
+#include <linux/errno.h>
 #include <asm/sram.h>
 
 /*
diff --git a/arch/sparc/include/asm/dma-mapping.h b/arch/sparc/include/asm/dma-mapping.h
index 8c0e4f7bb204..48a7c65731d2 100644
--- a/arch/sparc/include/asm/dma-mapping.h
+++ b/arch/sparc/include/asm/dma-mapping.h
@@ -26,24 +26,30 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 
 #include <asm-generic/dma-mapping-common.h>
 
-static inline void *dma_alloc_coherent(struct device *dev, size_t size,
-                                       dma_addr_t *dma_handle, gfp_t flag)
+#define dma_alloc_coherent(d,s,h,f)     dma_alloc_attrs(d,s,h,f,NULL)
+
+static inline void *dma_alloc_attrs(struct device *dev, size_t size,
+                                    dma_addr_t *dma_handle, gfp_t flag,
+                                    struct dma_attrs *attrs)
 {
         struct dma_map_ops *ops = get_dma_ops(dev);
         void *cpu_addr;
 
-        cpu_addr = ops->alloc_coherent(dev, size, dma_handle, flag);
+        cpu_addr = ops->alloc(dev, size, dma_handle, flag, attrs);
         debug_dma_alloc_coherent(dev, size, *dma_handle, cpu_addr);
         return cpu_addr;
 }
 
-static inline void dma_free_coherent(struct device *dev, size_t size,
-                                     void *cpu_addr, dma_addr_t dma_handle)
+#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL)
+
+static inline void dma_free_attrs(struct device *dev, size_t size,
+                                  void *cpu_addr, dma_addr_t dma_handle,
+                                  struct dma_attrs *attrs)
 {
         struct dma_map_ops *ops = get_dma_ops(dev);
 
         debug_dma_free_coherent(dev, size, cpu_addr, dma_handle);
-        ops->free_coherent(dev, size, cpu_addr, dma_handle);
+        ops->free(dev, size, cpu_addr, dma_handle, attrs);
 }
 
 static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h
index 6fa2f7980e6b..76e4a52aa85e 100644
--- a/arch/sparc/include/asm/pgtable_64.h
+++ b/arch/sparc/include/asm/pgtable_64.h
@@ -12,8 +12,6 @@
  * the SpitFire page tables.
  */
 
-#include <asm-generic/pgtable-nopud.h>
-
 #include <linux/compiler.h>
 #include <linux/const.h>
 #include <asm/types.h>
@@ -22,6 +20,8 @@
 #include <asm/page.h>
 #include <asm/processor.h>
 
+#include <asm-generic/pgtable-nopud.h>
+
 /* The kernel image occupies 0x4000000 to 0x6000000 (4MB --> 96MB).
  * The page copy blockops can use 0x6000000 to 0x8000000.
  * The TSB is mapped in the 0x8000000 to 0xa000000 range.
diff --git a/arch/sparc/kernel/central.c b/arch/sparc/kernel/central.c
index 38d48a59879c..9708851a8b9f 100644
--- a/arch/sparc/kernel/central.c
+++ b/arch/sparc/kernel/central.c
@@ -269,4 +269,4 @@ static int __init sunfire_init(void)
         return 0;
 }
 
-subsys_initcall(sunfire_init);
+fs_initcall(sunfire_init);
diff --git a/arch/sparc/kernel/ds.c b/arch/sparc/kernel/ds.c
index fea13c7b1aee..b93c2c9ccb1d 100644
--- a/arch/sparc/kernel/ds.c
+++ b/arch/sparc/kernel/ds.c
@@ -1264,4 +1264,4 @@ static int __init ds_init(void)
         return vio_register_driver(&ds_driver);
 }
 
-subsys_initcall(ds_init);
+fs_initcall(ds_init);
diff --git a/arch/sparc/kernel/iommu.c b/arch/sparc/kernel/iommu.c
index 4643d68713fa..070ed141aac7 100644
--- a/arch/sparc/kernel/iommu.c
+++ b/arch/sparc/kernel/iommu.c
@@ -280,7 +280,8 @@ static inline void iommu_free_ctx(struct iommu *iommu, int ctx)
 }
 
 static void *dma_4u_alloc_coherent(struct device *dev, size_t size,
-                                   dma_addr_t *dma_addrp, gfp_t gfp)
+                                   dma_addr_t *dma_addrp, gfp_t gfp,
+                                   struct dma_attrs *attrs)
 {
         unsigned long flags, order, first_page;
         struct iommu *iommu;
@@ -330,7 +331,8 @@ static void *dma_4u_alloc_coherent(struct device *dev, size_t size,
 }
 
 static void dma_4u_free_coherent(struct device *dev, size_t size,
-                                 void *cpu, dma_addr_t dvma)
+                                 void *cpu, dma_addr_t dvma,
+                                 struct dma_attrs *attrs)
 {
         struct iommu *iommu;
         unsigned long flags, order, npages;
@@ -825,8 +827,8 @@ static void dma_4u_sync_sg_for_cpu(struct device *dev,
 }
 
 static struct dma_map_ops sun4u_dma_ops = {
-        .alloc_coherent         = dma_4u_alloc_coherent,
-        .free_coherent          = dma_4u_free_coherent,
+        .alloc                  = dma_4u_alloc_coherent,
+        .free                   = dma_4u_free_coherent,
         .map_page               = dma_4u_map_page,
         .unmap_page             = dma_4u_unmap_page,
         .map_sg                 = dma_4u_map_sg,
diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index d0479e2163fa..21bd73943f7f 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -261,7 +261,8 @@ EXPORT_SYMBOL(sbus_set_sbus64);
  * CPU may access them without any explicit flushing.
  */
 static void *sbus_alloc_coherent(struct device *dev, size_t len,
-                                 dma_addr_t *dma_addrp, gfp_t gfp)
+                                 dma_addr_t *dma_addrp, gfp_t gfp,
+                                 struct dma_attrs *attrs)
 {
         struct platform_device *op = to_platform_device(dev);
         unsigned long len_total = PAGE_ALIGN(len);
@@ -315,7 +316,7 @@ err_nopages:
 }
 
 static void sbus_free_coherent(struct device *dev, size_t n, void *p,
-                               dma_addr_t ba)
+                               dma_addr_t ba, struct dma_attrs *attrs)
 {
         struct resource *res;
         struct page *pgv;
@@ -407,8 +408,8 @@ static void sbus_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
 }
 
 struct dma_map_ops sbus_dma_ops = {
-        .alloc_coherent         = sbus_alloc_coherent,
-        .free_coherent          = sbus_free_coherent,
+        .alloc                  = sbus_alloc_coherent,
+        .free                   = sbus_free_coherent,
         .map_page               = sbus_map_page,
         .unmap_page             = sbus_unmap_page,
         .map_sg                 = sbus_map_sg,
@@ -436,7 +437,8 @@ arch_initcall(sparc_register_ioport);
  * hwdev should be valid struct pci_dev pointer for PCI devices.
  */
 static void *pci32_alloc_coherent(struct device *dev, size_t len,
-                                  dma_addr_t *pba, gfp_t gfp)
+                                  dma_addr_t *pba, gfp_t gfp,
+                                  struct dma_attrs *attrs)
 {
         unsigned long len_total = PAGE_ALIGN(len);
         void *va;
@@ -489,7 +491,7 @@ err_nopages:
  * past this call are illegal.
  */
 static void pci32_free_coherent(struct device *dev, size_t n, void *p,
-                                dma_addr_t ba)
+                                dma_addr_t ba, struct dma_attrs *attrs)
 {
         struct resource *res;
 
@@ -645,8 +647,8 @@ static void pci32_sync_sg_for_device(struct device *device, struct scatterlist *
 }
 
 struct dma_map_ops pci32_dma_ops = {
-        .alloc_coherent         = pci32_alloc_coherent,
-        .free_coherent          = pci32_free_coherent,
+        .alloc                  = pci32_alloc_coherent,
+        .free                   = pci32_free_coherent,
         .map_page               = pci32_map_page,
         .unmap_page             = pci32_unmap_page,
         .map_sg                 = pci32_map_sg,
diff --git a/arch/sparc/kernel/leon_kernel.c b/arch/sparc/kernel/leon_kernel.c
index a19c8a063683..35e43673c453 100644
--- a/arch/sparc/kernel/leon_kernel.c
+++ b/arch/sparc/kernel/leon_kernel.c
@@ -104,11 +104,11 @@ static int irq_choose_cpu(const struct cpumask *affinity)
 {
         cpumask_t mask;
 
-        cpus_and(mask, cpu_online_map, *affinity);
-        if (cpus_equal(mask, cpu_online_map) || cpus_empty(mask))
+        cpumask_and(&mask, cpu_online_mask, affinity);
+        if (cpumask_equal(&mask, cpu_online_mask) || cpumask_empty(&mask))
                 return boot_cpu_id;
         else
-                return first_cpu(mask);
+                return cpumask_first(&mask);
 }
 #else
 #define irq_choose_cpu(affinity) boot_cpu_id
diff --git a/arch/sparc/kernel/leon_pci.c b/arch/sparc/kernel/leon_pci.c
index aba6b958b2a5..19f56058742b 100644
--- a/arch/sparc/kernel/leon_pci.c
+++ b/arch/sparc/kernel/leon_pci.c
@@ -45,7 +45,6 @@ void leon_pci_init(struct platform_device *ofdev, struct leon_pci_info *info)
 
 void __devinit pcibios_fixup_bus(struct pci_bus *pbus)
 {
-        struct leon_pci_info *info = pbus->sysdata;
         struct pci_dev *dev;
         int i, has_io, has_mem;
         u16 cmd;
@@ -111,18 +110,6 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
         return pci_enable_resources(dev, mask);
 }
 
-struct device_node *pci_device_to_OF_node(struct pci_dev *pdev)
-{
-        /*
-         * Currently the OpenBoot nodes are not connected with the PCI device,
-         * this is because the LEON PROM does not create PCI nodes. Eventually
-         * this will change and the same approach as pcic.c can be used to
-         * match PROM nodes with pci devices.
-         */
-        return NULL;
-}
-EXPORT_SYMBOL(pci_device_to_OF_node);
-
 void __devinit pcibios_update_irq(struct pci_dev *dev, int irq)
 {
 #ifdef CONFIG_PCI_DEBUG
diff --git a/arch/sparc/kernel/leon_smp.c b/arch/sparc/kernel/leon_smp.c
index 1210fde18740..160cac9c4036 100644
--- a/arch/sparc/kernel/leon_smp.c
+++ b/arch/sparc/kernel/leon_smp.c
@@ -23,6 +23,7 @@
 #include <linux/pm.h>
 #include <linux/delay.h>
 #include <linux/gfp.h>
+#include <linux/cpu.h>
 
 #include <asm/cacheflush.h>
 #include <asm/tlbflush.h>
@@ -78,6 +79,8 @@ void __cpuinit leon_callin(void)
         local_flush_tlb_all();
         leon_configure_cache_smp();
 
+        notify_cpu_starting(cpuid);
+
         /* Get our local ticker going. */
         smp_setup_percpu_timer();
 
diff --git a/arch/sparc/kernel/pci_sun4v.c b/arch/sparc/kernel/pci_sun4v.c
index af5755d20fbe..7661e84a05a0 100644
--- a/arch/sparc/kernel/pci_sun4v.c
+++ b/arch/sparc/kernel/pci_sun4v.c
@@ -128,7 +128,8 @@ static inline long iommu_batch_end(void)
 }
 
 static void *dma_4v_alloc_coherent(struct device *dev, size_t size,
-                                   dma_addr_t *dma_addrp, gfp_t gfp)
+                                   dma_addr_t *dma_addrp, gfp_t gfp,
+                                   struct dma_attrs *attrs)
 {
         unsigned long flags, order, first_page, npages, n;
         struct iommu *iommu;
@@ -198,7 +199,7 @@ range_alloc_fail:
 }
 
 static void dma_4v_free_coherent(struct device *dev, size_t size, void *cpu,
-                                 dma_addr_t dvma)
+                                 dma_addr_t dvma, struct dma_attrs *attrs)
 {
         struct pci_pbm_info *pbm;
         struct iommu *iommu;
@@ -527,8 +528,8 @@ static void dma_4v_unmap_sg(struct device *dev, struct scatterlist *sglist,
 }
 
 static struct dma_map_ops sun4v_dma_ops = {
-        .alloc_coherent                 = dma_4v_alloc_coherent,
-        .free_coherent                  = dma_4v_free_coherent,
+        .alloc                          = dma_4v_alloc_coherent,
+        .free                           = dma_4v_free_coherent,
         .map_page                       = dma_4v_map_page,
         .unmap_page                     = dma_4v_unmap_page,
         .map_sg                         = dma_4v_map_sg,
diff --git a/arch/sparc/kernel/rtrap_64.S b/arch/sparc/kernel/rtrap_64.S
index 77f1b95e0806..9171fc238def 100644
--- a/arch/sparc/kernel/rtrap_64.S
+++ b/arch/sparc/kernel/rtrap_64.S
@@ -20,11 +20,6 @@
 
                 .text
                 .align                  32
-__handle_softirq:
-                call                    do_softirq
-                 nop
-                ba,a,pt                 %xcc, __handle_softirq_continue
-                 nop
 __handle_preemption:
                 call                    schedule
                  wrpr                   %g0, RTRAP_PSTATE, %pstate
@@ -89,9 +84,7 @@ rtrap:
                 cmp                     %l1, 0
 
                 /* mm/ultra.S:xcall_report_regs KNOWS about this load. */
-                bne,pn                  %icc, __handle_softirq
                  ldx                    [%sp + PTREGS_OFF + PT_V9_TSTATE], %l1
-__handle_softirq_continue:
 rtrap_xcall:
                 sethi                   %hi(0xf << 20), %l4
                 and                     %l1, %l4, %l4
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index 232df9949530..3ee51f189a55 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -566,15 +566,10 @@ out:
 
 SYSCALL_DEFINE2(64_munmap, unsigned long, addr, size_t, len)
 {
-        long ret;
-
         if (invalid_64bit_range(addr, len))
                 return -EINVAL;
 
-        down_write(&current->mm->mmap_sem);
-        ret = do_munmap(current->mm, addr, len);
-        up_write(&current->mm->mmap_sem);
-        return ret;
+        return vm_munmap(addr, len);
 }
 
 extern unsigned long do_mremap(unsigned long addr,
diff --git a/arch/sparc/mm/fault_32.c b/arch/sparc/mm/fault_32.c
index 7705c6731e28..df3155a17991 100644
--- a/arch/sparc/mm/fault_32.c
+++ b/arch/sparc/mm/fault_32.c
@@ -225,6 +225,8 @@ asmlinkage void do_sparc_fault(struct pt_regs *regs, int text_fault, int write,
         unsigned long g2;
         int from_user = !(regs->psr & PSR_PS);
         int fault, code;
+        unsigned int flags = (FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE |
+                              (write ? FAULT_FLAG_WRITE : 0));
 
         if(text_fault)
                 address = regs->pc;
@@ -251,6 +253,7 @@ asmlinkage void do_sparc_fault(struct pt_regs *regs, int text_fault, int write,
 
         perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, address);
 
+retry:
         down_read(&mm->mmap_sem);
 
         /*
@@ -289,7 +292,11 @@ good_area:
          * make sure we exit gracefully rather than endlessly redo
          * the fault.
          */
-        fault = handle_mm_fault(mm, vma, address, write ? FAULT_FLAG_WRITE : 0);
+        fault = handle_mm_fault(mm, vma, address, flags);
+
+        if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
+                return;
+
         if (unlikely(fault & VM_FAULT_ERROR)) {
                 if (fault & VM_FAULT_OOM)
                         goto out_of_memory;
@@ -297,13 +304,29 @@ good_area:
                         goto do_sigbus;
                 BUG();
         }
-        if (fault & VM_FAULT_MAJOR) {
-                current->maj_flt++;
-                perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, regs, address);
-        } else {
-                current->min_flt++;
-                perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, regs, address);
+
+        if (flags & FAULT_FLAG_ALLOW_RETRY) {
+                if (fault & VM_FAULT_MAJOR) {
+                        current->maj_flt++;
+                        perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ,
+                                      1, regs, address);
+                } else {
+                        current->min_flt++;
+                        perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN,
+                                      1, regs, address);
+                }
+                if (fault & VM_FAULT_RETRY) {
+                        flags &= ~FAULT_FLAG_ALLOW_RETRY;
+
+                        /* No need to up_read(&mm->mmap_sem) as we would
+                         * have already released it in __lock_page_or_retry
+                         * in mm/filemap.c.
+                         */
+
+                        goto retry;
+                }
         }
+
         up_read(&mm->mmap_sem);
         return;
 
diff --git a/arch/sparc/mm/fault_64.c b/arch/sparc/mm/fault_64.c
index 504c0622f729..1fe0429b6314 100644
--- a/arch/sparc/mm/fault_64.c
+++ b/arch/sparc/mm/fault_64.c
@@ -279,6 +279,7 @@ asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs)
         unsigned int insn = 0;
         int si_code, fault_code, fault;
         unsigned long address, mm_rss;
+        unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
         fault_code = get_thread_fault_code();
 
@@ -333,6 +334,8 @@ asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs)
                         insn = get_fault_insn(regs, insn);
                         goto handle_kernel_fault;
                 }
+
+retry:
                 down_read(&mm->mmap_sem);
         }
 
@@ -423,7 +426,12 @@ good_area:
                         goto bad_area;
         }
 
-        fault = handle_mm_fault(mm, vma, address, (fault_code & FAULT_CODE_WRITE) ? FAULT_FLAG_WRITE : 0);
+        flags |= ((fault_code & FAULT_CODE_WRITE) ? FAULT_FLAG_WRITE : 0);
+        fault = handle_mm_fault(mm, vma, address, flags);
+
+        if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
+                return;
+
         if (unlikely(fault & VM_FAULT_ERROR)) {
                 if (fault & VM_FAULT_OOM)
                         goto out_of_memory;
@@ -431,12 +439,27 @@ good_area:
                         goto do_sigbus;
                 BUG();
         }
-        if (fault & VM_FAULT_MAJOR) {
-                current->maj_flt++;
-                perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, regs, address);
-        } else {
-                current->min_flt++;
-                perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, regs, address);
+
+        if (flags & FAULT_FLAG_ALLOW_RETRY) {
+                if (fault & VM_FAULT_MAJOR) {
+                        current->maj_flt++;
+                        perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ,
+                                      1, regs, address);
+                } else {
+                        current->min_flt++;
+                        perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN,
+                                      1, regs, address);
+                }
+                if (fault & VM_FAULT_RETRY) {
+                        flags &= ~FAULT_FLAG_ALLOW_RETRY;
+
+                        /* No need to up_read(&mm->mmap_sem) as we would
+                         * have already released it in __lock_page_or_retry
+                         * in mm/filemap.c.
+                         */
+
+                        goto retry;
+                }
         }
         up_read(&mm->mmap_sem);
 
diff --git a/arch/sparc/mm/ultra.S b/arch/sparc/mm/ultra.S
index b57a5942ba64..874162a11ceb 100644
--- a/arch/sparc/mm/ultra.S
+++ b/arch/sparc/mm/ultra.S
@@ -495,11 +495,11 @@ xcall_fetch_glob_regs:
         stx             %o7, [%g1 + GR_SNAP_O7]
         stx             %i7, [%g1 + GR_SNAP_I7]
         /* Don't try this at home kids... */
-        rdpr            %cwp, %g2
-        sub             %g2, 1, %g7
+        rdpr            %cwp, %g3
+        sub             %g3, 1, %g7
         wrpr            %g7, %cwp
         mov             %i7, %g7
-        wrpr            %g2, %cwp
+        wrpr            %g3, %cwp
         stx             %g7, [%g1 + GR_SNAP_RPC]
         sethi           %hi(trap_block), %g7
         or              %g7, %lo(trap_block), %g7
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index 11270ca22c0a..96033e2d6845 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -12,7 +12,7 @@ config TILE
         select GENERIC_PENDING_IRQ if SMP
         select GENERIC_IRQ_SHOW
         select SYS_HYPERVISOR
-        select ARCH_HAVE_NMI_SAFE_CMPXCHG if !M386
+        select ARCH_HAVE_NMI_SAFE_CMPXCHG
 
 # FIXME: investigate whether we need/want these options.
 #       select HAVE_IOREMAP_PROT
@@ -69,6 +69,9 @@ config ARCH_PHYS_ADDR_T_64BIT
 config ARCH_DMA_ADDR_T_64BIT
         def_bool y
 
+config NEED_DMA_MAP_STATE
+        def_bool y
+
 config LOCKDEP_SUPPORT
         def_bool y
 
@@ -118,7 +121,7 @@ config 64BIT
 
 config ARCH_DEFCONFIG
         string
-        default "arch/tile/configs/tile_defconfig" if !TILEGX
+        default "arch/tile/configs/tilepro_defconfig" if !TILEGX
         default "arch/tile/configs/tilegx_defconfig" if TILEGX
 
 source "init/Kconfig"
@@ -240,6 +243,7 @@ endchoice
 
 config PAGE_OFFSET
         hex
+        depends on !64BIT
         default 0xF0000000 if VMSPLIT_3_75G
         default 0xE0000000 if VMSPLIT_3_5G
         default 0xB0000000 if VMSPLIT_2_75G
diff --git a/arch/tile/Makefile b/arch/tile/Makefile
index 17acce70569b..9520bc5a4b7f 100644
--- a/arch/tile/Makefile
+++ b/arch/tile/Makefile
@@ -30,7 +30,8 @@ ifneq ($(CONFIG_DEBUG_EXTRA_FLAGS),"")
 KBUILD_CFLAGS   += $(CONFIG_DEBUG_EXTRA_FLAGS)
 endif
 
-LIBGCC_PATH     := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
+LIBGCC_PATH     := \
+  $(shell $(CC) $(KBUILD_CFLAGS) $(KCFLAGS) -print-libgcc-file-name)
 
 # Provide the path to use for "make defconfig".
 KBUILD_DEFCONFIG := $(ARCH)_defconfig
@@ -53,8 +54,6 @@ libs-y		+= $(LIBGCC_PATH)
 # See arch/tile/Kbuild for content of core part of the kernel
 core-y          += arch/tile/
 
-core-$(CONFIG_KVM) += arch/tile/kvm/
-
 ifdef TILERA_ROOT
 INSTALL_PATH ?= $(TILERA_ROOT)/tile/boot
 endif
diff --git a/arch/tile/include/arch/spr_def.h b/arch/tile/include/arch/spr_def.h
index f548efeb2de3..d6ba449b5363 100644
--- a/arch/tile/include/arch/spr_def.h
+++ b/arch/tile/include/arch/spr_def.h
@@ -60,8 +60,8 @@
         _concat4(SPR_IPI_EVENT_, CONFIG_KERNEL_PL,,)
 #define SPR_IPI_EVENT_RESET_K \
         _concat4(SPR_IPI_EVENT_RESET_, CONFIG_KERNEL_PL,,)
-#define SPR_IPI_MASK_SET_K \
-        _concat4(SPR_IPI_MASK_SET_, CONFIG_KERNEL_PL,,)
+#define SPR_IPI_EVENT_SET_K \
+        _concat4(SPR_IPI_EVENT_SET_, CONFIG_KERNEL_PL,,)
 #define INT_IPI_K \
         _concat4(INT_IPI_, CONFIG_KERNEL_PL,,)
 
diff --git a/arch/tile/include/asm/atomic.h b/arch/tile/include/asm/atomic.h
index bb696da5d7cd..f2461429a4a4 100644
--- a/arch/tile/include/asm/atomic.h
+++ b/arch/tile/include/asm/atomic.h
@@ -17,6 +17,8 @@
 #ifndef _ASM_TILE_ATOMIC_H
 #define _ASM_TILE_ATOMIC_H
 
+#include <asm/cmpxchg.h>
+
 #ifndef __ASSEMBLY__
 
 #include <linux/compiler.h>
@@ -121,54 +123,6 @@ static inline int atomic_read(const atomic_t *v)
  */
 #define atomic_add_negative(i, v)       (atomic_add_return((i), (v)) < 0)
 
-/* Nonexistent functions intended to cause link errors. */
-extern unsigned long __xchg_called_with_bad_pointer(void);
-extern unsigned long __cmpxchg_called_with_bad_pointer(void);
-
-#define xchg(ptr, x)                                                    \
-        ({                                                              \
-                typeof(*(ptr)) __x;                                     \
-                switch (sizeof(*(ptr))) {                               \
-                case 4:                                                 \
-                        __x = (typeof(__x))(typeof(__x-__x))atomic_xchg( \
-                                (atomic_t *)(ptr),                      \
-                                (u32)(typeof((x)-(x)))(x));             \
-                        break;                                          \
-                case 8:                                                 \
-                        __x = (typeof(__x))(typeof(__x-__x))atomic64_xchg( \
-                                (atomic64_t *)(ptr),                    \
-                                (u64)(typeof((x)-(x)))(x));             \
-                        break;                                          \
-                default:                                                \
-                        __xchg_called_with_bad_pointer();               \
-                }                                                       \
-                __x;                                                    \
-        })
-
-#define cmpxchg(ptr, o, n)                                              \
-        ({                                                              \
-                typeof(*(ptr)) __x;                                     \
-                switch (sizeof(*(ptr))) {                               \
-                case 4:                                                 \
-                        __x = (typeof(__x))(typeof(__x-__x))atomic_cmpxchg( \
-                                (atomic_t *)(ptr),                      \
-                                (u32)(typeof((o)-(o)))(o),              \
-                                (u32)(typeof((n)-(n)))(n));             \
-                        break;                                          \
-                case 8:                                                 \
-                        __x = (typeof(__x))(typeof(__x-__x))atomic64_cmpxchg( \
-                                (atomic64_t *)(ptr),                    \
-                                (u64)(typeof((o)-(o)))(o),              \
-                                (u64)(typeof((n)-(n)))(n));             \
-                        break;                                          \
-                default:                                                \
-                        __cmpxchg_called_with_bad_pointer();            \
-                }                                                       \
-                __x;                                                    \
-        })
-
-#define tas(ptr) (xchg((ptr), 1))
-
 #endif /* __ASSEMBLY__ */
 
 #ifndef __tilegx__
diff --git a/arch/tile/include/asm/atomic_32.h b/arch/tile/include/asm/atomic_32.h
index 466dc4a39a4f..54d1da826f93 100644
--- a/arch/tile/include/asm/atomic_32.h
+++ b/arch/tile/include/asm/atomic_32.h
@@ -200,7 +200,7 @@ static inline u64 atomic64_add_return(u64 i, atomic64_t *v)
  * @u: ...unless v is equal to u.
  *
  * Atomically adds @a to @v, so long as @v was not already @u.
- * Returns the old value of @v.
+ * Returns non-zero if @v was not @u, and zero otherwise.
  */
 static inline u64 atomic64_add_unless(atomic64_t *v, u64 a, u64 u)
 {
diff --git a/arch/tile/include/asm/bitops_64.h b/arch/tile/include/asm/bitops_64.h
index 58d021a9834f..60b87ee54fb8 100644
--- a/arch/tile/include/asm/bitops_64.h
+++ b/arch/tile/include/asm/bitops_64.h
@@ -38,10 +38,10 @@ static inline void clear_bit(unsigned nr, volatile unsigned long *addr)
 
 static inline void change_bit(unsigned nr, volatile unsigned long *addr)
 {
-        unsigned long old, mask = (1UL << (nr % BITS_PER_LONG));
-        long guess, oldval;
+        unsigned long mask = (1UL << (nr % BITS_PER_LONG));
+        unsigned long guess, oldval;
         addr += nr / BITS_PER_LONG;
-        old = *addr;
+        oldval = *addr;
         do {
                 guess = oldval;
                 oldval = atomic64_cmpxchg((atomic64_t *)addr,
@@ -85,7 +85,7 @@ static inline int test_and_change_bit(unsigned nr,
                                       volatile unsigned long *addr)
 {
         unsigned long mask = (1UL << (nr % BITS_PER_LONG));
-        long guess, oldval = *addr;
+        unsigned long guess, oldval;
         addr += nr / BITS_PER_LONG;
         oldval = *addr;
         do {
diff --git a/arch/tile/include/asm/cmpxchg.h b/arch/tile/include/asm/cmpxchg.h
new file mode 100644
index 000000000000..276f067e3640
--- /dev/null
+++ b/arch/tile/include/asm/cmpxchg.h
@@ -0,0 +1,73 @@
+/*
+ * cmpxchg.h -- forked from asm/atomic.h with this copyright:
+ *
+ * Copyright 2010 Tilera Corporation. 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, version 2.
+ *
+ *   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.
+ *
+ */
+
+#ifndef _ASM_TILE_CMPXCHG_H
+#define _ASM_TILE_CMPXCHG_H
+
+#ifndef __ASSEMBLY__
+
+/* Nonexistent functions intended to cause link errors. */
+extern unsigned long __xchg_called_with_bad_pointer(void);
+extern unsigned long __cmpxchg_called_with_bad_pointer(void);
+
+#define xchg(ptr, x)                                                    \
+        ({                                                              \
+                typeof(*(ptr)) __x;                                     \
+                switch (sizeof(*(ptr))) {                               \
+                case 4:                                                 \
+                        __x = (typeof(__x))(typeof(__x-__x))atomic_xchg( \
+                                (atomic_t *)(ptr),                      \
+                                (u32)(typeof((x)-(x)))(x));             \
+                        break;                                          \
+                case 8:                                                 \
+                        __x = (typeof(__x))(typeof(__x-__x))atomic64_xchg( \
+                                (atomic64_t *)(ptr),                    \
+                                (u64)(typeof((x)-(x)))(x));             \
+                        break;                                          \
+                default:                                                \
+                        __xchg_called_with_bad_pointer();               \
+                }                                                       \
+                __x;                                                    \
+        })
+
+#define cmpxchg(ptr, o, n)                                              \
+        ({                                                              \
+                typeof(*(ptr)) __x;                                     \
+                switch (sizeof(*(ptr))) {                               \
+                case 4:                                                 \
+                        __x = (typeof(__x))(typeof(__x-__x))atomic_cmpxchg( \
+                                (atomic_t *)(ptr),                      \
+                                (u32)(typeof((o)-(o)))(o),              \
+                                (u32)(typeof((n)-(n)))(n));             \
+                        break;                                          \
+                case 8:                                                 \
+                        __x = (typeof(__x))(typeof(__x-__x))atomic64_cmpxchg( \
+                                (atomic64_t *)(ptr),                    \
+                                (u64)(typeof((o)-(o)))(o),              \
+                                (u64)(typeof((n)-(n)))(n));             \
+                        break;                                          \
+                default:                                                \
+                        __cmpxchg_called_with_bad_pointer();            \
+                }                                                       \
+                __x;                                                    \
+        })
+
+#define tas(ptr) (xchg((ptr), 1))
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_TILE_CMPXCHG_H */
diff --git a/arch/tile/include/asm/irq.h b/arch/tile/include/asm/irq.h
index f80f8ceabc67..33cff9a3058b 100644
--- a/arch/tile/include/asm/irq.h
+++ b/arch/tile/include/asm/irq.h
@@ -21,7 +21,7 @@
 #define NR_IRQS 32
 
 /* IRQ numbers used for linux IPIs. */
-#define IRQ_RESCHEDULE 1
+#define IRQ_RESCHEDULE 0
 
 #define irq_canonicalize(irq)   (irq)
 
diff --git a/arch/tile/include/asm/pci.h b/arch/tile/include/asm/pci.h
index 5d5a635530bd..32e6cbe8dff3 100644
--- a/arch/tile/include/asm/pci.h
+++ b/arch/tile/include/asm/pci.h
@@ -47,8 +47,8 @@ struct pci_controller {
  */
 #define PCI_DMA_BUS_IS_PHYS     1
 
-int __devinit tile_pci_init(void);
-int __devinit pcibios_init(void);
+int __init tile_pci_init(void);
+int __init pcibios_init(void);
 
 static inline void pci_iounmap(struct pci_dev *dev, void __iomem *addr) {}
 
diff --git a/arch/tile/include/asm/spinlock_64.h b/arch/tile/include/asm/spinlock_64.h
index 72be5904e020..5f8b6a095fd8 100644
--- a/arch/tile/include/asm/spinlock_64.h
+++ b/arch/tile/include/asm/spinlock_64.h
@@ -137,7 +137,7 @@ static inline void arch_read_unlock(arch_rwlock_t *rw)
 static inline void arch_write_unlock(arch_rwlock_t *rw)
 {
         __insn_mf();
-        rw->lock = 0;
+        __insn_exch4(&rw->lock, 0);  /* Avoid waiting in the write buffer. */
 }
 
 static inline int arch_read_trylock(arch_rwlock_t *rw)
diff --git a/arch/tile/include/asm/stack.h b/arch/tile/include/asm/stack.h
index 4d97a2db932e..0e9d382a2d45 100644
--- a/arch/tile/include/asm/stack.h
+++ b/arch/tile/include/asm/stack.h
@@ -25,7 +25,6 @@
 struct KBacktraceIterator {
         BacktraceIterator it;
         struct task_struct *task;     /* task we are backtracing */
-        pte_t *pgtable;               /* page table for user space access */
         int end;                      /* iteration complete. */
         int new_context;              /* new context is starting */
         int profile;                  /* profiling, so stop on async intrpt */
diff --git a/arch/tile/include/asm/thread_info.h b/arch/tile/include/asm/thread_info.h
index bc4f562bd459..7594764d8a69 100644
--- a/arch/tile/include/asm/thread_info.h
+++ b/arch/tile/include/asm/thread_info.h
@@ -100,9 +100,14 @@ extern void cpu_idle_on_new_stack(struct thread_info *old_ti,
 
 #else /* __ASSEMBLY__ */
 
-/* how to get the thread information struct from ASM */
+/*
+ * How to get the thread information struct from assembly.
+ * Note that we use different macros since different architectures
+ * have different semantics in their "mm" instruction and we would
+ * like to guarantee that the macro expands to exactly one instruction.
+ */
 #ifdef __tilegx__
-#define GET_THREAD_INFO(reg) move reg, sp; mm reg, zero, LOG2_THREAD_SIZE, 63
+#define EXTRACT_THREAD_INFO(reg) mm reg, zero, LOG2_THREAD_SIZE, 63
 #else
 #define GET_THREAD_INFO(reg) mm reg, sp, zero, LOG2_THREAD_SIZE, 31
 #endif
diff --git a/arch/tile/include/asm/traps.h b/arch/tile/include/asm/traps.h
index 5f20f920f932..e28c3df4176a 100644
--- a/arch/tile/include/asm/traps.h
+++ b/arch/tile/include/asm/traps.h
@@ -64,7 +64,11 @@ void do_breakpoint(struct pt_regs *, int fault_num);
 
 
 #ifdef __tilegx__
+/* kernel/single_step.c */
 void gx_singlestep_handle(struct pt_regs *, int fault_num);
+
+/* kernel/intvec_64.S */
+void fill_ra_stack(void);
 #endif
 
-#endif /* _ASM_TILE_SYSCALLS_H */
+#endif /* _ASM_TILE_TRAPS_H */
diff --git a/arch/tile/kernel/compat_signal.c b/arch/tile/kernel/compat_signal.c
index 77763ccd5a7d..cdef6e5ec022 100644
--- a/arch/tile/kernel/compat_signal.c
+++ b/arch/tile/kernel/compat_signal.c
@@ -403,19 +403,17 @@ int compat_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
          * Set up registers for signal handler.
          * Registers that we don't modify keep the value they had from
          * user-space at the time we took the signal.
+         * We always pass siginfo and mcontext, regardless of SA_SIGINFO,
+         * since some things rely on this (e.g. glibc's debug/segfault.c).
          */
         regs->pc = ptr_to_compat_reg(ka->sa.sa_handler);
         regs->ex1 = PL_ICS_EX1(USER_PL, 1); /* set crit sec in handler */
         regs->sp = ptr_to_compat_reg(frame);
         regs->lr = restorer;
         regs->regs[0] = (unsigned long) usig;
-
-        if (ka->sa.sa_flags & SA_SIGINFO) {
-                /* Need extra arguments, so mark to restore caller-saves. */
-                regs->regs[1] = ptr_to_compat_reg(&frame->info);
-                regs->regs[2] = ptr_to_compat_reg(&frame->uc);
-                regs->flags |= PT_FLAGS_CALLER_SAVES;
-        }
+        regs->regs[1] = ptr_to_compat_reg(&frame->info);
+        regs->regs[2] = ptr_to_compat_reg(&frame->uc);
+        regs->flags |= PT_FLAGS_CALLER_SAVES;
 
         /*
          * Notify any tracer that was single-stepping it.
diff --git a/arch/tile/kernel/entry.S b/arch/tile/kernel/entry.S
index 431e9ae60488..ec91568df880 100644
--- a/arch/tile/kernel/entry.S
+++ b/arch/tile/kernel/entry.S
@@ -85,6 +85,7 @@ STD_ENTRY(cpu_idle_on_new_stack)
 /* Loop forever on a nap during SMP boot. */
 STD_ENTRY(smp_nap)
         nap
+        nop       /* avoid provoking the icache prefetch with a jump */
         j smp_nap /* we are not architecturally guaranteed not to exit nap */
         jrp lr    /* clue in the backtracer */
         STD_ENDPROC(smp_nap)
@@ -105,5 +106,6 @@ STD_ENTRY(_cpu_idle)
         .global _cpu_idle_nap
 _cpu_idle_nap:
         nap
+        nop       /* avoid provoking the icache prefetch with a jump */
         jrp lr
         STD_ENDPROC(_cpu_idle)
diff --git a/arch/tile/kernel/intvec_32.S b/arch/tile/kernel/intvec_32.S
index aecc8ed5f39b..6943515100f8 100644
--- a/arch/tile/kernel/intvec_32.S
+++ b/arch/tile/kernel/intvec_32.S
@@ -799,6 +799,10 @@ handle_interrupt:
  * This routine takes a boolean in r30 indicating if this is an NMI.
  * If so, we also expect a boolean in r31 indicating whether to
  * re-enable the oprofile interrupts.
+ *
+ * Note that .Lresume_userspace is jumped to directly in several
+ * places, and we need to make sure r30 is set correctly in those
+ * callers as well.
  */
 STD_ENTRY(interrupt_return)
         /* If we're resuming to kernel space, don't check thread flags. */
@@ -835,6 +839,18 @@ STD_ENTRY(interrupt_return)
         FEEDBACK_REENTER(interrupt_return)
 
         /*
+         * Use r33 to hold whether we have already loaded the callee-saves
+         * into ptregs.  We don't want to do it twice in this loop, since
+         * then we'd clobber whatever changes are made by ptrace, etc.
+         * Get base of stack in r32.
+         */
+        {
+         GET_THREAD_INFO(r32)
+         movei  r33, 0
+        }
+
+.Lretry_work_pending:
+        /*
          * Disable interrupts so as to make sure we don't
          * miss an interrupt that sets any of the thread flags (like
          * need_resched or sigpending) between sampling and the iret.
@@ -844,9 +860,6 @@ STD_ENTRY(interrupt_return)
         IRQ_DISABLE(r20, r21)
         TRACE_IRQS_OFF  /* Note: clobbers registers r0-r29 */
 
-        /* Get base of stack in r32; note r30/31 are used as arguments here. */
-        GET_THREAD_INFO(r32)
-
 
         /* Check to see if there is any work to do before returning to user. */
         {
@@ -862,16 +875,18 @@ STD_ENTRY(interrupt_return)
 
         /*
          * Make sure we have all the registers saved for signal
-         * handling or single-step.  Call out to C code to figure out
-         * exactly what we need to do for each flag bit, then if
-         * necessary, reload the flags and recheck.
+         * handling, notify-resume, or single-step.  Call out to C
+         * code to figure out exactly what we need to do for each flag bit,
+         * then if necessary, reload the flags and recheck.
          */
-        push_extra_callee_saves r0
         {
          PTREGS_PTR(r0, PTREGS_OFFSET_BASE)
-         jal    do_work_pending
+         bnz    r33, 1f
         }
-        bnz     r0, .Lresume_userspace
+        push_extra_callee_saves r0
+        movei   r33, 1
+1:      jal     do_work_pending
+        bnz     r0, .Lretry_work_pending
 
         /*
          * In the NMI case we
@@ -1176,10 +1191,12 @@ handle_syscall:
         add     r20, r20, tp
         lw      r21, r20
         addi    r21, r21, 1
-        sw      r20, r21
+        {
+         sw     r20, r21
+         GET_THREAD_INFO(r31)
+        }
 
         /* Trace syscalls, if requested. */
-        GET_THREAD_INFO(r31)
         addi    r31, r31, THREAD_INFO_FLAGS_OFFSET
         lw      r30, r31
         andi    r30, r30, _TIF_SYSCALL_TRACE
@@ -1237,7 +1254,10 @@ handle_syscall:
         bzt     r30, 1f
         jal     do_syscall_trace
         FEEDBACK_REENTER(handle_syscall)
-1:      j       .Lresume_userspace   /* jump into middle of interrupt_return */
+1:      {
+         movei  r30, 0               /* not an NMI */
+         j      .Lresume_userspace   /* jump into middle of interrupt_return */
+        }
 
 .Linvalid_syscall:
         /* Report an invalid syscall back to the user program */
@@ -1246,7 +1266,10 @@ handle_syscall:
          movei  r28, -ENOSYS
         }
         sw      r29, r28
-        j       .Lresume_userspace   /* jump into middle of interrupt_return */
+        {
+         movei  r30, 0               /* not an NMI */
+         j      .Lresume_userspace   /* jump into middle of interrupt_return */
+        }
         STD_ENDPROC(handle_syscall)
 
         /* Return the address for oprofile to suppress in backtraces. */
@@ -1262,7 +1285,10 @@ STD_ENTRY(ret_from_fork)
         jal     sim_notify_fork
         jal     schedule_tail
         FEEDBACK_REENTER(ret_from_fork)
-        j       .Lresume_userspace   /* jump into middle of interrupt_return */
+        {
+         movei  r30, 0               /* not an NMI */
+         j      .Lresume_userspace   /* jump into middle of interrupt_return */
+        }
         STD_ENDPROC(ret_from_fork)
 
         /*
@@ -1349,7 +1375,10 @@ handle_ill:
 3:
         /* set PC and continue */
         lw      r26, r24
-        sw      r28, r26
+        {
+         sw     r28, r26
+         GET_THREAD_INFO(r0)
+        }
 
         /*
          * Clear TIF_SINGLESTEP to prevent recursion if we execute an ill.
@@ -1357,7 +1386,6 @@ handle_ill:
          * need to clear it here and can't really impose on all other arches.
          * So what's another write between friends?
          */
-        GET_THREAD_INFO(r0)
 
         addi    r1, r0, THREAD_INFO_FLAGS_OFFSET
         {
@@ -1376,7 +1404,10 @@ handle_ill:
 
         jal     send_sigtrap    /* issue a SIGTRAP */
         FEEDBACK_REENTER(handle_ill)
-        j       .Lresume_userspace   /* jump into middle of interrupt_return */
+        {
+         movei  r30, 0               /* not an NMI */
+         j      .Lresume_userspace   /* jump into middle of interrupt_return */
+        }
 
 .Ldispatch_normal_ill:
         {
diff --git a/arch/tile/kernel/intvec_64.S b/arch/tile/kernel/intvec_64.S
index 79c93e10ba27..30ae76e50c44 100644
--- a/arch/tile/kernel/intvec_64.S
+++ b/arch/tile/kernel/intvec_64.S
@@ -22,6 +22,7 @@
 #include <asm/irqflags.h>
 #include <asm/asm-offsets.h>
 #include <asm/types.h>
+#include <asm/signal.h>
 #include <hv/hypervisor.h>
 #include <arch/abi.h>
 #include <arch/interrupts.h>
@@ -605,6 +606,10 @@ handle_interrupt:
  * This routine takes a boolean in r30 indicating if this is an NMI.
  * If so, we also expect a boolean in r31 indicating whether to
  * re-enable the oprofile interrupts.
+ *
+ * Note that .Lresume_userspace is jumped to directly in several
+ * places, and we need to make sure r30 is set correctly in those
+ * callers as well.
  */
 STD_ENTRY(interrupt_return)
         /* If we're resuming to kernel space, don't check thread flags. */
@@ -642,6 +647,20 @@ STD_ENTRY(interrupt_return)
         FEEDBACK_REENTER(interrupt_return)
 
         /*
+         * Use r33 to hold whether we have already loaded the callee-saves
+         * into ptregs.  We don't want to do it twice in this loop, since
+         * then we'd clobber whatever changes are made by ptrace, etc.
+         */
+        {
+         movei  r33, 0
+         move   r32, sp
+        }
+
+        /* Get base of stack in r32. */
+        EXTRACT_THREAD_INFO(r32)
+
+.Lretry_work_pending:
+        /*
          * Disable interrupts so as to make sure we don't
          * miss an interrupt that sets any of the thread flags (like
          * need_resched or sigpending) between sampling and the iret.
@@ -651,9 +670,6 @@ STD_ENTRY(interrupt_return)
         IRQ_DISABLE(r20, r21)
         TRACE_IRQS_OFF  /* Note: clobbers registers r0-r29 */
 
-        /* Get base of stack in r32; note r30/31 are used as arguments here. */
-        GET_THREAD_INFO(r32)
-
 
         /* Check to see if there is any work to do before returning to user. */
         {
@@ -669,16 +685,18 @@ STD_ENTRY(interrupt_return)
 
         /*
          * Make sure we have all the registers saved for signal
-         * handling or single-step.  Call out to C code to figure out
+         * handling or notify-resume.  Call out to C code to figure out
          * exactly what we need to do for each flag bit, then if
          * necessary, reload the flags and recheck.
          */
-        push_extra_callee_saves r0
         {
          PTREGS_PTR(r0, PTREGS_OFFSET_BASE)
-         jal    do_work_pending
+         bnez   r33, 1f
         }
-        bnez    r0, .Lresume_userspace
+        push_extra_callee_saves r0
+        movei   r33, 1
+1:      jal     do_work_pending
+        bnez    r0, .Lretry_work_pending
 
         /*
          * In the NMI case we
@@ -963,11 +981,16 @@ handle_syscall:
         shl16insli r20, r20, hw0(irq_stat + IRQ_CPUSTAT_SYSCALL_COUNT_OFFSET)
         add     r20, r20, tp
         ld4s    r21, r20
-        addi    r21, r21, 1
-        st4     r20, r21
+        {
+         addi   r21, r21, 1
+         move   r31, sp
+        }
+        {
+         st4    r20, r21
+         EXTRACT_THREAD_INFO(r31)
+        }
 
         /* Trace syscalls, if requested. */
-        GET_THREAD_INFO(r31)
         addi    r31, r31, THREAD_INFO_FLAGS_OFFSET
         ld      r30, r31
         andi    r30, r30, _TIF_SYSCALL_TRACE
@@ -1039,11 +1062,28 @@ handle_syscall:
 
         /* Do syscall trace again, if requested. */
         ld      r30, r31
-        andi    r30, r30, _TIF_SYSCALL_TRACE
-        beqzt   r30, 1f
+        andi    r0, r30, _TIF_SYSCALL_TRACE
+        {
+         andi    r0, r30, _TIF_SINGLESTEP
+         beqzt   r0, 1f
+        }
         jal     do_syscall_trace
         FEEDBACK_REENTER(handle_syscall)
-1:      j       .Lresume_userspace   /* jump into middle of interrupt_return */
+        andi    r0, r30, _TIF_SINGLESTEP
+
+1:      beqzt   r0, 2f
+
+        /* Single stepping -- notify ptrace. */
+        {
+         movei   r0, SIGTRAP
+         jal     ptrace_notify
+        }
+        FEEDBACK_REENTER(handle_syscall)
+
+2:      {
+         movei  r30, 0               /* not an NMI */
+         j      .Lresume_userspace   /* jump into middle of interrupt_return */
+        }
 
 .Lcompat_syscall:
         /*
@@ -1077,7 +1117,10 @@ handle_syscall:
          movei  r28, -ENOSYS
         }
         st      r29, r28
-        j       .Lresume_userspace   /* jump into middle of interrupt_return */
+        {
+         movei  r30, 0               /* not an NMI */
+         j      .Lresume_userspace   /* jump into middle of interrupt_return */
+        }
         STD_ENDPROC(handle_syscall)
 
         /* Return the address for oprofile to suppress in backtraces. */
@@ -1093,7 +1136,10 @@ STD_ENTRY(ret_from_fork)
         jal     sim_notify_fork
         jal     schedule_tail
         FEEDBACK_REENTER(ret_from_fork)
-        j       .Lresume_userspace
+        {
+         movei  r30, 0               /* not an NMI */
+         j      .Lresume_userspace   /* jump into middle of interrupt_return */
+        }
         STD_ENDPROC(ret_from_fork)
 
 /* Various stub interrupt handlers and syscall handlers */
@@ -1156,6 +1202,18 @@ int_unalign:
         push_extra_callee_saves r0
         j       do_trap
 
+/* Fill the return address stack with nonzero entries. */
+STD_ENTRY(fill_ra_stack)
+        {
+         move   r0, lr
+         jal    1f
+        }
+1:      jal     2f
+2:      jal     3f
+3:      jal     4f
+4:      jrp     r0
+        STD_ENDPROC(fill_ra_stack)
+
 /* Include .intrpt1 array of interrupt vectors */
         .section ".intrpt1", "ax"
 
@@ -1166,7 +1224,7 @@ int_unalign:
 #define do_hardwall_trap bad_intr
 #endif
 
-        int_hand     INT_MEM_ERROR, MEM_ERROR, bad_intr
+        int_hand     INT_MEM_ERROR, MEM_ERROR, do_trap
         int_hand     INT_SINGLE_STEP_3, SINGLE_STEP_3, bad_intr
 #if CONFIG_KERNEL_PL == 2
         int_hand     INT_SINGLE_STEP_2, SINGLE_STEP_2, gx_singlestep_handle
diff --git a/arch/tile/kernel/module.c b/arch/tile/kernel/module.c
index b90ab9925674..98d476920106 100644
--- a/arch/tile/kernel/module.c
+++ b/arch/tile/kernel/module.c
@@ -67,6 +67,8 @@ void *module_alloc(unsigned long size)
         area = __get_vm_area(size, VM_ALLOC, MEM_MODULE_START, MEM_MODULE_END);
         if (!area)
                 goto error;
+        area->nr_pages = npages;
+        area->pages = pages;
 
         if (map_vm_area(area, prot_rwx, &pages)) {
                 vunmap(area->addr);
diff --git a/arch/tile/kernel/pci.c b/arch/tile/kernel/pci.c
index a1bb59eecc18..b56d12bf5900 100644
--- a/arch/tile/kernel/pci.c
+++ b/arch/tile/kernel/pci.c
@@ -141,7 +141,7 @@ static int __devinit tile_init_irqs(int controller_id,
  *
  * Returns the number of controllers discovered.
  */
-int __devinit tile_pci_init(void)
+int __init tile_pci_init(void)
 {
         int i;
 
@@ -287,7 +287,7 @@ static void __devinit fixup_read_and_payload_sizes(void)
  * The controllers have been set up by the time we get here, by a call to
  * tile_pci_init.
  */
-int __devinit pcibios_init(void)
+int __init pcibios_init(void)
 {
         int i;
 
diff --git a/arch/tile/kernel/proc.c b/arch/tile/kernel/proc.c
index 7a9327046404..446a7f52cc11 100644
--- a/arch/tile/kernel/proc.c
+++ b/arch/tile/kernel/proc.c
@@ -146,7 +146,6 @@ static ctl_table unaligned_table[] = {
         },
         {}
 };
-#endif
 
 static struct ctl_path tile_path[] = {
         { .procname = "tile" },
@@ -155,10 +154,9 @@ static struct ctl_path tile_path[] = {
 
 static int __init proc_sys_tile_init(void)
 {
-#ifndef __tilegx__  /* FIXME: GX: no support for unaligned access yet */
         register_sysctl_paths(tile_path, unaligned_table);
-#endif
         return 0;
 }
 
 arch_initcall(proc_sys_tile_init);
+#endif
diff --git a/arch/tile/kernel/process.c b/arch/tile/kernel/process.c
index 30caecac94dc..54e6c64b85cc 100644
--- a/arch/tile/kernel/process.c
+++ b/arch/tile/kernel/process.c
@@ -28,6 +28,7 @@
 #include <linux/tracehook.h>
 #include <linux/signal.h>
 #include <asm/stack.h>
+#include <asm/switch_to.h>
 #include <asm/homecache.h>
 #include <asm/syscalls.h>
 #include <asm/traps.h>
@@ -285,7 +286,7 @@ struct task_struct *validate_current(void)
         static struct task_struct corrupt = { .comm = "<corrupt>" };
         struct task_struct *tsk = current;
         if (unlikely((unsigned long)tsk < PAGE_OFFSET ||
-                     (void *)tsk > high_memory ||
+                     (high_memory && (void *)tsk > high_memory) ||
                      ((unsigned long)tsk & (__alignof__(*tsk) - 1)) != 0)) {
                 pr_err("Corrupt 'current' %p (sp %#lx)\n", tsk, stack_pointer);
                 tsk = &corrupt;
@@ -566,6 +567,10 @@ struct task_struct *__sched _switch_to(struct task_struct *prev,
  */
 int do_work_pending(struct pt_regs *regs, u32 thread_info_flags)
 {
+        /* If we enter in kernel mode, do nothing and exit the caller loop. */
+        if (!user_mode(regs))
+                return 0;
+
         if (thread_info_flags & _TIF_NEED_RESCHED) {
                 schedule();
                 return 1;
@@ -588,8 +593,7 @@ int do_work_pending(struct pt_regs *regs, u32 thread_info_flags)
                 return 1;
         }
         if (thread_info_flags & _TIF_SINGLESTEP) {
-                if ((regs->ex1 & SPR_EX_CONTEXT_1_1__PL_MASK) == 0)
-                        single_step_once(regs);
+                single_step_once(regs);
                 return 0;
         }
         panic("work_pending: bad flags %#x\n", thread_info_flags);
diff --git a/arch/tile/kernel/setup.c b/arch/tile/kernel/setup.c
index 5f85d8b34dbb..bff23f476110 100644
--- a/arch/tile/kernel/setup.c
+++ b/arch/tile/kernel/setup.c
@@ -103,13 +103,11 @@ unsigned long __initdata pci_reserve_end_pfn = -1U;
 
 static int __init setup_maxmem(char *str)
 {
-        long maxmem_mb;
-        if (str == NULL || strict_strtol(str, 0, &maxmem_mb) != 0 ||
-            maxmem_mb == 0)
+        unsigned long long maxmem;
+        if (str == NULL || (maxmem = memparse(str, NULL)) == 0)
                 return -EINVAL;
 
-        maxmem_pfn = (maxmem_mb >> (HPAGE_SHIFT - 20)) <<
-                (HPAGE_SHIFT - PAGE_SHIFT);
+        maxmem_pfn = (maxmem >> HPAGE_SHIFT) << (HPAGE_SHIFT - PAGE_SHIFT);
         pr_info("Forcing RAM used to no more than %dMB\n",
                maxmem_pfn >> (20 - PAGE_SHIFT));
         return 0;
@@ -119,14 +117,15 @@ early_param("maxmem", setup_maxmem);
 static int __init setup_maxnodemem(char *str)
 {
         char *endp;
-        long maxnodemem_mb, node;
+        unsigned long long maxnodemem;
+        long node;
 
         node = str ? simple_strtoul(str, &endp, 0) : INT_MAX;
-        if (node >= MAX_NUMNODES || *endp != ':' ||
-            strict_strtol(endp+1, 0, &maxnodemem_mb) != 0)
+        if (node >= MAX_NUMNODES || *endp != ':')
                 return -EINVAL;
 
-        maxnodemem_pfn[node] = (maxnodemem_mb >> (HPAGE_SHIFT - 20)) <<
+        maxnodemem = memparse(endp+1, NULL);
+        maxnodemem_pfn[node] = (maxnodemem >> HPAGE_SHIFT) <<
                 (HPAGE_SHIFT - PAGE_SHIFT);
         pr_info("Forcing RAM used on node %ld to no more than %dMB\n",
                node, maxnodemem_pfn[node] >> (20 - PAGE_SHIFT));
@@ -913,6 +912,13 @@ void __cpuinit setup_cpu(int boot)
 
 #ifdef CONFIG_BLK_DEV_INITRD
 
+/*
+ * Note that the kernel can potentially support other compression
+ * techniques than gz, though we don't do so by default.  If we ever
+ * decide to do so we can either look for other filename extensions,
+ * or just allow a file with this name to be compressed with an
+ * arbitrary compressor (somewhat counterintuitively).
+ */
 static int __initdata set_initramfs_file;
 static char __initdata initramfs_file[128] = "initramfs.cpio.gz";
 
@@ -928,9 +934,9 @@ static int __init setup_initramfs_file(char *str)
 early_param("initramfs_file", setup_initramfs_file);
 
 /*
- * We look for an additional "initramfs.cpio.gz" file in the hvfs.
+ * We look for an "initramfs.cpio.gz" file in the hvfs.
  * If there is one, we allocate some memory for it and it will be
- * unpacked to the initramfs after any built-in initramfs_data.
+ * unpacked to the initramfs.
  */
 static void __init load_hv_initrd(void)
 {
@@ -1100,7 +1106,7 @@ EXPORT_SYMBOL(hash_for_home_map);
 
 /*
  * cpu_cacheable_map lists all the cpus whose caches the hypervisor can
- * flush on our behalf.  It is set to cpu_possible_map OR'ed with
+ * flush on our behalf.  It is set to cpu_possible_mask OR'ed with
  * hash_for_home_map, and it is what should be passed to
  * hv_flush_remote() to flush all caches.  Note that if there are
  * dedicated hypervisor driver tiles that have authorized use of their
@@ -1186,7 +1192,7 @@ static void __init setup_cpu_maps(void)
                               sizeof(cpu_lotar_map));
         if (rc < 0) {
                 pr_err("warning: no HV_INQ_TILES_LOTAR; using AVAIL\n");
-                cpu_lotar_map = cpu_possible_map;
+                cpu_lotar_map = *cpu_possible_mask;
         }
 
 #if CHIP_HAS_CBOX_HOME_MAP()
@@ -1196,9 +1202,9 @@ static void __init setup_cpu_maps(void)
                               sizeof(hash_for_home_map));
         if (rc < 0)
                 early_panic("hv_inquire_tiles(HFH_CACHE) failed: rc %d\n", rc);
-        cpumask_or(&cpu_cacheable_map, &cpu_possible_map, &hash_for_home_map);
+        cpumask_or(&cpu_cacheable_map, cpu_possible_mask, &hash_for_home_map);
 #else
-        cpu_cacheable_map = cpu_possible_map;
+        cpu_cacheable_map = *cpu_possible_mask;
 #endif
 }
 
diff --git a/arch/tile/kernel/single_step.c b/arch/tile/kernel/single_step.c
index bc1eb586e24d..89529c9f0605 100644
--- a/arch/tile/kernel/single_step.c
+++ b/arch/tile/kernel/single_step.c
@@ -153,6 +153,25 @@ static tile_bundle_bits rewrite_load_store_unaligned(
         if (((unsigned long)addr % size) == 0)
                 return bundle;
 
+        /*
+         * Return SIGBUS with the unaligned address, if requested.
+         * Note that we return SIGBUS even for completely invalid addresses
+         * as long as they are in fact unaligned; this matches what the
+         * tilepro hardware would be doing, if it could provide us with the
+         * actual bad address in an SPR, which it doesn't.
+         */
+        if (unaligned_fixup == 0) {
+                siginfo_t info = {
+                        .si_signo = SIGBUS,
+                        .si_code = BUS_ADRALN,
+                        .si_addr = addr
+                };
+                trace_unhandled_signal("unaligned trap", regs,
+                                       (unsigned long)addr, SIGBUS);
+                force_sig_info(info.si_signo, &info, current);
+                return (tilepro_bundle_bits) 0;
+        }
+
 #ifndef __LITTLE_ENDIAN
 # error We assume little-endian representation with copy_xx_user size 2 here
 #endif
@@ -192,18 +211,6 @@ static tile_bundle_bits rewrite_load_store_unaligned(
                 return (tile_bundle_bits) 0;
         }
 
-        if (unaligned_fixup == 0) {
-                siginfo_t info = {
-                        .si_signo = SIGBUS,
-                        .si_code = BUS_ADRALN,
-                        .si_addr = addr
-                };
-                trace_unhandled_signal("unaligned trap", regs,
-                                       (unsigned long)addr, SIGBUS);
-                force_sig_info(info.si_signo, &info, current);
-                return (tile_bundle_bits) 0;
-        }
-
         if (unaligned_printk || unaligned_fixup_count == 0) {
                 pr_info("Process %d/%s: PC %#lx: Fixup of"
                         " unaligned %s at %#lx.\n",
@@ -339,12 +346,10 @@ void single_step_once(struct pt_regs *regs)
                 }
 
                 /* allocate a cache line of writable, executable memory */
-                down_write(&current->mm->mmap_sem);
-                buffer = (void __user *) do_mmap(NULL, 0, 64,
+                buffer = (void __user *) vm_mmap(NULL, 0, 64,
                                           PROT_EXEC | PROT_READ | PROT_WRITE,
                                           MAP_PRIVATE | MAP_ANONYMOUS,
                                           0);
-                up_write(&current->mm->mmap_sem);
 
                 if (IS_ERR((void __force *)buffer)) {
                         kfree(state);
diff --git a/arch/tile/kernel/smp.c b/arch/tile/kernel/smp.c
index a44e103c5a63..91da0f721958 100644
--- a/arch/tile/kernel/smp.c
+++ b/arch/tile/kernel/smp.c
@@ -103,7 +103,7 @@ static void smp_stop_cpu_interrupt(void)
         set_cpu_online(smp_processor_id(), 0);
         arch_local_irq_disable_all();
         for (;;)
-                asm("nap");
+                asm("nap; nop");
 }
 
 /* This function calls the 'stop' function on all other CPUs in the system. */
@@ -113,6 +113,12 @@ void smp_send_stop(void)
         send_IPI_allbutself(MSG_TAG_STOP_CPU);
 }
 
+/* On panic, just wait; we may get an smp_send_stop() later on. */
+void panic_smp_self_stop(void)
+{
+        while (1)
+                asm("nap; nop");
+}
 
 /*
  * Dispatch code called from hv_message_intr() for HV_MSG_TILE hv messages.
diff --git a/arch/tile/kernel/smpboot.c b/arch/tile/kernel/smpboot.c
index b949edcec200..172aef7d3159 100644
--- a/arch/tile/kernel/smpboot.c
+++ b/arch/tile/kernel/smpboot.c
@@ -196,6 +196,8 @@ void __cpuinit online_secondary(void)
         /* This must be done before setting cpu_online_mask */
         wmb();
 
+        notify_cpu_starting(smp_processor_id());
+
         /*
          * We need to hold call_lock, so there is no inconsistency
          * between the time smp_call_function() determines number of
diff --git a/arch/tile/kernel/stack.c b/arch/tile/kernel/stack.c
index 37ee4d037e0b..b2f44c28dda6 100644
--- a/arch/tile/kernel/stack.c
+++ b/arch/tile/kernel/stack.c
@@ -21,10 +21,12 @@
 #include <linux/stacktrace.h>
 #include <linux/uaccess.h>
 #include <linux/mmzone.h>
+#include <linux/dcache.h>
+#include <linux/fs.h>
 #include <asm/backtrace.h>
 #include <asm/page.h>
-#include <asm/tlbflush.h>
 #include <asm/ucontext.h>
+#include <asm/switch_to.h>
 #include <asm/sigframe.h>
 #include <asm/stack.h>
 #include <arch/abi.h>
@@ -44,72 +46,23 @@ static int in_kernel_stack(struct KBacktraceIterator *kbt, unsigned long sp)
         return sp >= kstack_base && sp < kstack_base + THREAD_SIZE;
 }
 
-/* Is address valid for reading? */
-static int valid_address(struct KBacktraceIterator *kbt, unsigned long address)
-{
-        HV_PTE *l1_pgtable = kbt->pgtable;
-        HV_PTE *l2_pgtable;
-        unsigned long pfn;
-        HV_PTE pte;
-        struct page *page;
-
-        if (l1_pgtable == NULL)
-                return 0;       /* can't read user space in other tasks */
-
-#ifdef CONFIG_64BIT
-        /* Find the real l1_pgtable by looking in the l0_pgtable. */
-        pte = l1_pgtable[HV_L0_INDEX(address)];
-        if (!hv_pte_get_present(pte))
-                return 0;
-        pfn = hv_pte_get_pfn(pte);
-        if (pte_huge(pte)) {
-                if (!pfn_valid(pfn)) {
-                        pr_err("L0 huge page has bad pfn %#lx\n", pfn);
-                        return 0;
-                }
-                return hv_pte_get_present(pte) && hv_pte_get_readable(pte);
-        }
-        page = pfn_to_page(pfn);
-        BUG_ON(PageHighMem(page));  /* No HIGHMEM on 64-bit. */
-        l1_pgtable = (HV_PTE *)pfn_to_kaddr(pfn);
-#endif
-        pte = l1_pgtable[HV_L1_INDEX(address)];
-        if (!hv_pte_get_present(pte))
-                return 0;
-        pfn = hv_pte_get_pfn(pte);
-        if (pte_huge(pte)) {
-                if (!pfn_valid(pfn)) {
-                        pr_err("huge page has bad pfn %#lx\n", pfn);
-                        return 0;
-                }
-                return hv_pte_get_present(pte) && hv_pte_get_readable(pte);
-        }
-
-        page = pfn_to_page(pfn);
-        if (PageHighMem(page)) {
-                pr_err("L2 page table not in LOWMEM (%#llx)\n",
-                       HV_PFN_TO_CPA(pfn));
-                return 0;
-        }
-        l2_pgtable = (HV_PTE *)pfn_to_kaddr(pfn);
-        pte = l2_pgtable[HV_L2_INDEX(address)];
-        return hv_pte_get_present(pte) && hv_pte_get_readable(pte);
-}
-
 /* Callback for backtracer; basically a glorified memcpy */
 static bool read_memory_func(void *result, unsigned long address,
                              unsigned int size, void *vkbt)
 {
         int retval;
         struct KBacktraceIterator *kbt = (struct KBacktraceIterator *)vkbt;
+
+        if (address == 0)
+                return 0;
         if (__kernel_text_address(address)) {
                 /* OK to read kernel code. */
         } else if (address >= PAGE_OFFSET) {
                 /* We only tolerate kernel-space reads of this task's stack */
                 if (!in_kernel_stack(kbt, address))
                         return 0;
-        } else if (!valid_address(kbt, address)) {
-                return 0;       /* invalid user-space address */
+        } else if (!kbt->is_current) {
+                return 0;       /* can't read from other user address spaces */
         }
         pagefault_disable();
         retval = __copy_from_user_inatomic(result,
@@ -127,6 +80,8 @@ static struct pt_regs *valid_fault_handler(struct KBacktraceIterator* kbt)
         unsigned long sp = kbt->it.sp;
         struct pt_regs *p;
 
+        if (sp % sizeof(long) != 0)
+                return NULL;
         if (!in_kernel_stack(kbt, sp))
                 return NULL;
         if (!in_kernel_stack(kbt, sp + C_ABI_SAVE_AREA_SIZE + PTREGS_SIZE-1))
@@ -169,27 +124,27 @@ static int is_sigreturn(unsigned long pc)
 }
 
 /* Return a pt_regs pointer for a valid signal handler frame */
-static struct pt_regs *valid_sigframe(struct KBacktraceIterator* kbt)
+static struct pt_regs *valid_sigframe(struct KBacktraceIterator* kbt,
+                                      struct rt_sigframe* kframe)
 {
         BacktraceIterator *b = &kbt->it;
 
-        if (b->pc == VDSO_BASE) {
-                struct rt_sigframe *frame;
-                unsigned long sigframe_top =
-                        b->sp + sizeof(struct rt_sigframe) - 1;
-                if (!valid_address(kbt, b->sp) ||
-                    !valid_address(kbt, sigframe_top)) {
-                        if (kbt->verbose)
-                                pr_err("  (odd signal: sp %#lx?)\n",
-                                       (unsigned long)(b->sp));
+        if (b->pc == VDSO_BASE && b->sp < PAGE_OFFSET &&
+            b->sp % sizeof(long) == 0) {
+                int retval;
+                pagefault_disable();
+                retval = __copy_from_user_inatomic(
+                        kframe, (void __user __force *)b->sp,
+                        sizeof(*kframe));
+                pagefault_enable();
+                if (retval != 0 ||
+                    (unsigned int)(kframe->info.si_signo) >= _NSIG)
                         return NULL;
-                }
-                frame = (struct rt_sigframe *)b->sp;
                 if (kbt->verbose) {
                         pr_err("  <received signal %d>\n",
-                               frame->info.si_signo);
+                               kframe->info.si_signo);
                 }
-                return (struct pt_regs *)&frame->uc.uc_mcontext;
+                return (struct pt_regs *)&kframe->uc.uc_mcontext;
         }
         return NULL;
 }
@@ -202,10 +157,11 @@ static int KBacktraceIterator_is_sigreturn(struct KBacktraceIterator *kbt)
 static int KBacktraceIterator_restart(struct KBacktraceIterator *kbt)
 {
         struct pt_regs *p;
+        struct rt_sigframe kframe;
 
         p = valid_fault_handler(kbt);
         if (p == NULL)
-                p = valid_sigframe(kbt);
+                p = valid_sigframe(kbt, &kframe);
         if (p == NULL)
                 return 0;
         backtrace_init(&kbt->it, read_memory_func, kbt,
@@ -265,41 +221,19 @@ void KBacktraceIterator_init(struct KBacktraceIterator *kbt,
 
         /*
          * Set up callback information.  We grab the kernel stack base
-         * so we will allow reads of that address range, and if we're
-         * asking about the current process we grab the page table
-         * so we can check user accesses before trying to read them.
-         * We flush the TLB to avoid any weird skew issues.
+         * so we will allow reads of that address range.
          */
-        is_current = (t == NULL);
+        is_current = (t == NULL || t == current);
         kbt->is_current = is_current;
         if (is_current)
                 t = validate_current();
         kbt->task = t;
-        kbt->pgtable = NULL;
         kbt->verbose = 0;   /* override in caller if desired */
         kbt->profile = 0;   /* override in caller if desired */
         kbt->end = KBT_ONGOING;
-        kbt->new_context = 0;
-        if (is_current) {
-                HV_PhysAddr pgdir_pa = hv_inquire_context().page_table;
-                if (pgdir_pa == (unsigned long)swapper_pg_dir - PAGE_OFFSET) {
-                        /*
-                         * Not just an optimization: this also allows
-                         * this to work at all before va/pa mappings
-                         * are set up.
-                         */
-                        kbt->pgtable = swapper_pg_dir;
-                } else {
-                        struct page *page = pfn_to_page(PFN_DOWN(pgdir_pa));
-                        if (!PageHighMem(page))
-                                kbt->pgtable = __va(pgdir_pa);
-                        else
-                                pr_err("page table not in LOWMEM"
-                                       " (%#llx)\n", pgdir_pa);
-                }
-                local_flush_tlb_all();
+        kbt->new_context = 1;
+        if (is_current)
                 validate_stack(regs);
-        }
 
         if (regs == NULL) {
                 if (is_current || t->state == TASK_RUNNING) {
@@ -345,6 +279,78 @@ void KBacktraceIterator_next(struct KBacktraceIterator *kbt)
 }
 EXPORT_SYMBOL(KBacktraceIterator_next);
 
+static void describe_addr(struct KBacktraceIterator *kbt,
+                          unsigned long address,
+                          int have_mmap_sem, char *buf, size_t bufsize)
+{
+        struct vm_area_struct *vma;
+        size_t namelen, remaining;
+        unsigned long size, offset, adjust;
+        char *p, *modname;
+        const char *name;
+        int rc;
+
+        /*
+         * Look one byte back for every caller frame (i.e. those that
+         * aren't a new context) so we look up symbol data for the
+         * call itself, not the following instruction, which may be on
+         * a different line (or in a different function).
+         */
+        adjust = !kbt->new_context;
+        address -= adjust;
+
+        if (address >= PAGE_OFFSET) {
+                /* Handle kernel symbols. */
+                BUG_ON(bufsize < KSYM_NAME_LEN);
+                name = kallsyms_lookup(address, &size, &offset,
+                                       &modname, buf);
+                if (name == NULL) {
+                        buf[0] = '\0';
+                        return;
+                }
+                namelen = strlen(buf);
+                remaining = (bufsize - 1) - namelen;
+                p = buf + namelen;
+                rc = snprintf(p, remaining, "+%#lx/%#lx ",
+                              offset + adjust, size);
+                if (modname && rc < remaining)
+                        snprintf(p + rc, remaining - rc, "[%s] ", modname);
+                buf[bufsize-1] = '\0';
+                return;
+        }
+
+        /* If we don't have the mmap_sem, we can't show any more info. */
+        buf[0] = '\0';
+        if (!have_mmap_sem)
+                return;
+
+        /* Find vma info. */
+        vma = find_vma(kbt->task->mm, address);
+        if (vma == NULL || address < vma->vm_start) {
+                snprintf(buf, bufsize, "[unmapped address] ");
+                return;
+        }
+
+        if (vma->vm_file) {
+                char *s;
+                p = d_path(&vma->vm_file->f_path, buf, bufsize);
+                if (IS_ERR(p))
+                        p = "?";
+                s = strrchr(p, '/');
+                if (s)
+                        p = s+1;
+        } else {
+                p = "anon";
+        }
+
+        /* Generate a string description of the vma info. */
+        namelen = strlen(p);
+        remaining = (bufsize - 1) - namelen;
+        memmove(buf, p, namelen);
+        snprintf(buf + namelen, remaining, "[%lx+%lx] ",
+                 vma->vm_start, vma->vm_end - vma->vm_start);
+}
+
 /*
  * This method wraps the backtracer's more generic support.
  * It is only invoked from the architecture-specific code; show_stack()
@@ -353,6 +359,7 @@ EXPORT_SYMBOL(KBacktraceIterator_next);
 void tile_show_stack(struct KBacktraceIterator *kbt, int headers)
 {
         int i;
+        int have_mmap_sem = 0;
 
         if (headers) {
                 /*
@@ -369,31 +376,16 @@ void tile_show_stack(struct KBacktraceIterator *kbt, int headers)
         kbt->verbose = 1;
         i = 0;
         for (; !KBacktraceIterator_end(kbt); KBacktraceIterator_next(kbt)) {
-                char *modname;
-                const char *name;
-                unsigned long address = kbt->it.pc;
-                unsigned long offset, size;
                 char namebuf[KSYM_NAME_LEN+100];
+                unsigned long address = kbt->it.pc;
 
-                if (address >= PAGE_OFFSET)
-                        name = kallsyms_lookup(address, &size, &offset,
-                                               &modname, namebuf);
-                else
-                        name = NULL;
-
-                if (!name)
-                        namebuf[0] = '\0';
-                else {
-                        size_t namelen = strlen(namebuf);
-                        size_t remaining = (sizeof(namebuf) - 1) - namelen;
-                        char *p = namebuf + namelen;
-                        int rc = snprintf(p, remaining, "+%#lx/%#lx ",
-                                          offset, size);
-                        if (modname && rc < remaining)
-                                snprintf(p + rc, remaining - rc,
-                                         "[%s] ", modname);
-                        namebuf[sizeof(namebuf)-1] = '\0';
-                }
+                /* Try to acquire the mmap_sem as we pass into userspace. */
+                if (address < PAGE_OFFSET && !have_mmap_sem && kbt->task->mm)
+                        have_mmap_sem =
+                                down_read_trylock(&kbt->task->mm->mmap_sem);
+
+                describe_addr(kbt, address, have_mmap_sem,
+                              namebuf, sizeof(namebuf));
 
                 pr_err("  frame %d: 0x%lx %s(sp 0x%lx)\n",
                        i++, address, namebuf, (unsigned long)(kbt->it.sp));
@@ -408,6 +400,8 @@ void tile_show_stack(struct KBacktraceIterator *kbt, int headers)
                 pr_err("Stack dump stopped; next frame identical to this one\n");
         if (headers)
                 pr_err("Stack dump complete\n");
+        if (have_mmap_sem)
+                up_read(&kbt->task->mm->mmap_sem);
 }
 EXPORT_SYMBOL(tile_show_stack);
 
diff --git a/arch/tile/kernel/traps.c b/arch/tile/kernel/traps.c
index 2bb6602a1ee7..73cff814ac57 100644
--- a/arch/tile/kernel/traps.c
+++ b/arch/tile/kernel/traps.c
@@ -200,7 +200,7 @@ void __kprobes do_trap(struct pt_regs *regs, int fault_num,
 {
         siginfo_t info = { 0 };
         int signo, code;
-        unsigned long address;
+        unsigned long address = 0;
         bundle_bits instr;
 
         /* Re-enable interrupts. */
@@ -223,6 +223,10 @@ void __kprobes do_trap(struct pt_regs *regs, int fault_num,
         }
 
         switch (fault_num) {
+        case INT_MEM_ERROR:
+                signo = SIGBUS;
+                code = BUS_OBJERR;
+                break;
         case INT_ILL:
                 if (copy_from_user(&instr, (void __user *)regs->pc,
                                    sizeof(instr))) {
@@ -289,7 +293,10 @@ void __kprobes do_trap(struct pt_regs *regs, int fault_num,
                 address = regs->pc;
                 break;
 #ifdef __tilegx__
-        case INT_ILL_TRANS:
+        case INT_ILL_TRANS: {
+                /* Avoid a hardware erratum with the return address stack. */
+                fill_ra_stack();
+
                 signo = SIGSEGV;
                 code = SEGV_MAPERR;
                 if (reason & SPR_ILL_TRANS_REASON__I_STREAM_VA_RMASK)
@@ -297,6 +304,7 @@ void __kprobes do_trap(struct pt_regs *regs, int fault_num,
                 else
                         address = 0;  /* FIXME: GX: single-step for address */
                 break;
+        }
 #endif
         default:
                 panic("Unexpected do_trap interrupt number %d", fault_num);
@@ -308,7 +316,8 @@ void __kprobes do_trap(struct pt_regs *regs, int fault_num,
         info.si_addr = (void __user *)address;
         if (signo == SIGILL)
                 info.si_trapno = fault_num;
-        trace_unhandled_signal("trap", regs, address, signo);
+        if (signo != SIGTRAP)
+                trace_unhandled_signal("trap", regs, address, signo);
         force_sig_info(signo, &info, current);
 }
 
diff --git a/arch/tile/lib/Makefile b/arch/tile/lib/Makefile
index 0c26086ecbef..985f59858234 100644
--- a/arch/tile/lib/Makefile
+++ b/arch/tile/lib/Makefile
@@ -7,6 +7,7 @@ lib-y = cacheflush.o checksum.o cpumask.o delay.o uaccess.o \
         strchr_$(BITS).o strlen_$(BITS).o
 
 ifeq ($(CONFIG_TILEGX),y)
+CFLAGS_REMOVE_memcpy_user_64.o = -fno-omit-frame-pointer
 lib-y += memcpy_user_64.o
 else
 lib-y += atomic_32.o atomic_asm_32.o memcpy_tile64.o
diff --git a/arch/tile/lib/cacheflush.c b/arch/tile/lib/cacheflush.c
index 8928aace7a64..db4fb89e12d8 100644
--- a/arch/tile/lib/cacheflush.c
+++ b/arch/tile/lib/cacheflush.c
@@ -39,7 +39,21 @@ void finv_buffer_remote(void *buffer, size_t size, int hfh)
 {
         char *p, *base;
         size_t step_size, load_count;
+
+        /*
+         * On TILEPro the striping granularity is a fixed 8KB; on
+         * TILE-Gx it is configurable, and we rely on the fact that
+         * the hypervisor always configures maximum striping, so that
+         * bits 9 and 10 of the PA are part of the stripe function, so
+         * every 512 bytes we hit a striping boundary.
+         *
+         */
+#ifdef __tilegx__
+        const unsigned long STRIPE_WIDTH = 512;
+#else
         const unsigned long STRIPE_WIDTH = 8192;
+#endif
+
 #ifdef __tilegx__
         /*
          * On TILE-Gx, we must disable the dstream prefetcher before doing
@@ -74,7 +88,7 @@ void finv_buffer_remote(void *buffer, size_t size, int hfh)
          * memory, that one load would be sufficient, but since we may
          * be, we also need to back up to the last load issued to
          * another memory controller, which would be the point where
-         * we crossed an 8KB boundary (the granularity of striping
+         * we crossed a "striping" boundary (the granularity of striping
          * across memory controllers).  Keep backing up and doing this
          * until we are before the beginning of the buffer, or have
          * hit all the controllers.
@@ -88,12 +102,22 @@ void finv_buffer_remote(void *buffer, size_t size, int hfh)
          * every cache line on a full memory stripe on each
          * controller" that we simply do that, to simplify the logic.
          *
-         * FIXME: See bug 9535 for some issues with this code.
+         * On TILE-Gx the hash-for-home function is much more complex,
+         * with the upshot being we can't readily guarantee we have
+         * hit both entries in the 128-entry AMT that were hit by any
+         * load in the entire range, so we just re-load them all.
+         * With larger buffers, we may want to consider using a hypervisor
+         * trap to issue loads directly to each hash-for-home tile for
+         * each controller (doing it from Linux would trash the TLB).
          */
         if (hfh) {
                 step_size = L2_CACHE_BYTES;
+#ifdef __tilegx__
+                load_count = (size + L2_CACHE_BYTES - 1) / L2_CACHE_BYTES;
+#else
                 load_count = (STRIPE_WIDTH / L2_CACHE_BYTES) *
                               (1 << CHIP_LOG_NUM_MSHIMS());
+#endif
         } else {
                 step_size = STRIPE_WIDTH;
                 load_count = (1 << CHIP_LOG_NUM_MSHIMS());
@@ -109,7 +133,7 @@ void finv_buffer_remote(void *buffer, size_t size, int hfh)
 
         /* Figure out how far back we need to go. */
         base = p - (step_size * (load_count - 2));
-        if ((long)base < (long)buffer)
+        if ((unsigned long)base < (unsigned long)buffer)
                 base = buffer;
 
         /*
diff --git a/arch/tile/lib/memcpy_user_64.c b/arch/tile/lib/memcpy_user_64.c
index 4763b3aff1cc..37440caa7370 100644
--- a/arch/tile/lib/memcpy_user_64.c
+++ b/arch/tile/lib/memcpy_user_64.c
@@ -14,7 +14,13 @@
  * Do memcpy(), but trap and return "n" when a load or store faults.
  *
  * Note: this idiom only works when memcpy() compiles to a leaf function.
- * If "sp" is updated during memcpy, the "jrp lr" will be incorrect.
+ * Here leaf function not only means it does not have calls, but also
+ * requires no stack operations (sp, stack frame pointer) and no
+ * use of callee-saved registers, else "jrp lr" will be incorrect since
+ * unwinding stack frame is bypassed. Since memcpy() is not complex so
+ * these conditions are satisfied here, but we need to be careful when
+ * modifying this file. This is not a clean solution but is the best
+ * one so far.
  *
  * Also note that we are capturing "n" from the containing scope here.
  */
diff --git a/arch/tile/lib/spinlock_common.h b/arch/tile/lib/spinlock_common.h
index c10109809132..6ac37509faca 100644
--- a/arch/tile/lib/spinlock_common.h
+++ b/arch/tile/lib/spinlock_common.h
@@ -60,5 +60,5 @@ static void delay_backoff(int iterations)
         loops += __insn_crc32_32(stack_pointer, get_cycles_low()) &
                 (loops - 1);
 
-        relax(1 << exponent);
+        relax(loops);
 }
diff --git a/arch/tile/mm/fault.c b/arch/tile/mm/fault.c
index cba30e9547b4..22e58f51ed23 100644
--- a/arch/tile/mm/fault.c
+++ b/arch/tile/mm/fault.c
@@ -130,7 +130,7 @@ static inline pmd_t *vmalloc_sync_one(pgd_t *pgd, unsigned long address)
 }
 
 /*
- * Handle a fault on the vmalloc or module mapping area
+ * Handle a fault on the vmalloc area.
  */
 static inline int vmalloc_fault(pgd_t *pgd, unsigned long address)
 {
@@ -203,9 +203,14 @@ static pgd_t *get_current_pgd(void)
  * interrupt or a critical region, and must do as little as possible.
  * Similarly, we can't use atomic ops here, since we may be handling a
  * fault caused by an atomic op access.
+ *
+ * If we find a migrating PTE while we're in an NMI context, and we're
+ * at a PC that has a registered exception handler, we don't wait,
+ * since this thread may (e.g.) have been interrupted while migrating
+ * its own stack, which would then cause us to self-deadlock.
  */
 static int handle_migrating_pte(pgd_t *pgd, int fault_num,
-                                unsigned long address,
+                                unsigned long address, unsigned long pc,
                                 int is_kernel_mode, int write)
 {
         pud_t *pud;
@@ -227,6 +232,8 @@ static int handle_migrating_pte(pgd_t *pgd, int fault_num,
                 pte_offset_kernel(pmd, address);
         pteval = *pte;
         if (pte_migrating(pteval)) {
+                if (in_nmi() && search_exception_tables(pc))
+                        return 0;
                 wait_for_migration(pte);
                 return 1;
         }
@@ -300,7 +307,7 @@ static int handle_page_fault(struct pt_regs *regs,
          * rather than trying to patch up the existing PTE.
          */
         pgd = get_current_pgd();
-        if (handle_migrating_pte(pgd, fault_num, address,
+        if (handle_migrating_pte(pgd, fault_num, address, regs->pc,
                                  is_kernel_mode, write))
                 return 1;
 
@@ -335,9 +342,12 @@ static int handle_page_fault(struct pt_regs *regs,
         /*
          * If we're trying to touch user-space addresses, we must
          * be either at PL0, or else with interrupts enabled in the
-         * kernel, so either way we can re-enable interrupts here.
+         * kernel, so either way we can re-enable interrupts here
+         * unless we are doing atomic access to user space with
+         * interrupts disabled.
          */
-        local_irq_enable();
+        if (!(regs->flags & PT_FLAGS_DISABLE_IRQ))
+                local_irq_enable();
 
         mm = tsk->mm;
 
@@ -665,7 +675,7 @@ struct intvec_state do_page_fault_ics(struct pt_regs *regs, int fault_num,
          */
         if (fault_num == INT_DTLB_ACCESS)
                 write = 1;
-        if (handle_migrating_pte(pgd, fault_num, address, 1, write))
+        if (handle_migrating_pte(pgd, fault_num, address, pc, 1, write))
                 return state;
 
         /* Return zero so that we continue on with normal fault handling. */
diff --git a/arch/tile/mm/homecache.c b/arch/tile/mm/homecache.c
index 1cc6ae477c98..499f73770b05 100644
--- a/arch/tile/mm/homecache.c
+++ b/arch/tile/mm/homecache.c
@@ -394,6 +394,7 @@ int page_home(struct page *page)
                 return pte_to_home(*virt_to_pte(NULL, kva));
         }
 }
+EXPORT_SYMBOL(page_home);
 
 void homecache_change_page_home(struct page *page, int order, int home)
 {
diff --git a/arch/tile/mm/init.c b/arch/tile/mm/init.c
index 830c4908ea76..6a9d20ddc34f 100644
--- a/arch/tile/mm/init.c
+++ b/arch/tile/mm/init.c
@@ -254,11 +254,6 @@ static pgprot_t __init init_pgprot(ulong address)
                 return construct_pgprot(PAGE_KERNEL_RO, PAGE_HOME_IMMUTABLE);
         }
 
-        /* As a performance optimization, keep the boot init stack here. */
-        if (address >= (ulong)&init_thread_union &&
-            address < (ulong)&init_thread_union + THREAD_SIZE)
-                return construct_pgprot(PAGE_KERNEL, smp_processor_id());
-
 #ifndef __tilegx__
 #if !ATOMIC_LOCKS_FOUND_VIA_TABLE()
         /* Force the atomic_locks[] array page to be hash-for-home. */
@@ -557,6 +552,7 @@ static void __init kernel_physical_mapping_init(pgd_t *pgd_base)
 
         address = MEM_SV_INTRPT;
         pmd = get_pmd(pgtables, address);
+        pfn = 0;  /* code starts at PA 0 */
         if (ktext_small) {
                 /* Allocate an L2 PTE for the kernel text */
                 int cpu = 0;
@@ -579,10 +575,15 @@ static void __init kernel_physical_mapping_init(pgd_t *pgd_base)
                 }
 
                 BUG_ON(address != (unsigned long)_stext);
-                pfn = 0;  /* code starts at PA 0 */
-                pte = alloc_pte();
-                for (pte_ofs = 0; address < (unsigned long)_einittext;
-                     pfn++, pte_ofs++, address += PAGE_SIZE) {
+                pte = NULL;
+                for (; address < (unsigned long)_einittext;
+                     pfn++, address += PAGE_SIZE) {
+                        pte_ofs = pte_index(address);
+                        if (pte_ofs == 0) {
+                                if (pte)
+                                        assign_pte(pmd++, pte);
+                                pte = alloc_pte();
+                        }
                         if (!ktext_local) {
                                 prot = set_remote_cache_cpu(prot, cpu);
                                 cpu = cpumask_next(cpu, &ktext_mask);
@@ -591,7 +592,8 @@ static void __init kernel_physical_mapping_init(pgd_t *pgd_base)
                         }
                         pte[pte_ofs] = pfn_pte(pfn, prot);
                 }
-                assign_pte(pmd, pte);
+                if (pte)
+                        assign_pte(pmd, pte);
         } else {
                 pte_t pteval = pfn_pte(0, PAGE_KERNEL_EXEC);
                 pteval = pte_mkhuge(pteval);
@@ -614,7 +616,9 @@ static void __init kernel_physical_mapping_init(pgd_t *pgd_base)
                 else
                         pteval = hv_pte_set_mode(pteval,
                                                  HV_PTE_MODE_CACHE_NO_L3);
-                *(pte_t *)pmd = pteval;
+                for (; address < (unsigned long)_einittext;
+                     pfn += PFN_DOWN(HPAGE_SIZE), address += HPAGE_SIZE)
+                        *(pte_t *)(pmd++) = pfn_pte(pfn, pteval);
         }
 
         /* Set swapper_pgprot here so it is flushed to memory right away. */
diff --git a/arch/tile/mm/pgtable.c b/arch/tile/mm/pgtable.c
index 87303693a072..2410aa899b3e 100644
--- a/arch/tile/mm/pgtable.c
+++ b/arch/tile/mm/pgtable.c
@@ -177,14 +177,10 @@ void shatter_huge_page(unsigned long addr)
         if (!pmd_huge_page(*pmd))
                 return;
 
-        /*
-         * Grab the pgd_lock, since we may need it to walk the pgd_list,
-         * and since we need some kind of lock here to avoid races.
-         */
-        spin_lock_irqsave(&pgd_lock, flags);
+        spin_lock_irqsave(&init_mm.page_table_lock, flags);
         if (!pmd_huge_page(*pmd)) {
                 /* Lost the race to convert the huge page. */
-                spin_unlock_irqrestore(&pgd_lock, flags);
+                spin_unlock_irqrestore(&init_mm.page_table_lock, flags);
                 return;
         }
 
@@ -194,6 +190,7 @@ void shatter_huge_page(unsigned long addr)
 
 #ifdef __PAGETABLE_PMD_FOLDED
         /* Walk every pgd on the system and update the pmd there. */
+        spin_lock(&pgd_lock);
         list_for_each(pos, &pgd_list) {
                 pmd_t *copy_pmd;
                 pgd = list_to_pgd(pos) + pgd_index(addr);
@@ -201,6 +198,7 @@ void shatter_huge_page(unsigned long addr)
                 copy_pmd = pmd_offset(pud, addr);
                 __set_pmd(copy_pmd, *pmd);
         }
+        spin_unlock(&pgd_lock);
 #endif
 
         /* Tell every cpu to notice the change. */
@@ -208,7 +206,7 @@ void shatter_huge_page(unsigned long addr)
                      cpu_possible_mask, NULL, 0);
 
         /* Hold the lock until the TLB flush is finished to avoid races. */
-        spin_unlock_irqrestore(&pgd_lock, flags);
+        spin_unlock_irqrestore(&init_mm.page_table_lock, flags);
 }
 
 /*
@@ -217,9 +215,13 @@ void shatter_huge_page(unsigned long addr)
  * against pageattr.c; it is the unique case in which a valid change
  * of kernel pagetables can't be lazily synchronized by vmalloc faults.
  * vmalloc faults work because attached pagetables are never freed.
- * The locking scheme was chosen on the basis of manfred's
- * recommendations and having no core impact whatsoever.
- * -- wli
+ *
+ * The lock is always taken with interrupts disabled, unlike on x86
+ * and other platforms, because we need to take the lock in
+ * shatter_huge_page(), which may be called from an interrupt context.
+ * We are not at risk from the tlbflush IPI deadlock that was seen on
+ * x86, since we use the flush_remote() API to have the hypervisor do
+ * the TLB flushes regardless of irq disabling.
  */
 DEFINE_SPINLOCK(pgd_lock);
 LIST_HEAD(pgd_list);
@@ -469,10 +471,18 @@ void __set_pte(pte_t *ptep, pte_t pte)
 
 void set_pte(pte_t *ptep, pte_t pte)
 {
-        struct page *page = pfn_to_page(pte_pfn(pte));
-
-        /* Update the home of a PTE if necessary */
-        pte = pte_set_home(pte, page_home(page));
+        if (pte_present(pte) &&
+            (!CHIP_HAS_MMIO() || hv_pte_get_mode(pte) != HV_PTE_MODE_MMIO)) {
+                /* The PTE actually references physical memory. */
+                unsigned long pfn = pte_pfn(pte);
+                if (pfn_valid(pfn)) {
+                        /* Update the home of the PTE from the struct page. */
+                        pte = pte_set_home(pte, page_home(pfn_to_page(pfn)));
+                } else if (hv_pte_get_mode(pte) == 0) {
+                        /* remap_pfn_range(), etc, must supply PTE mode. */
+                        panic("set_pte(): out-of-range PFN and mode 0\n");
+                }
+        }
 
         __set_pte(ptep, pte);
 }
diff --git a/arch/um/drivers/cow.h b/arch/um/drivers/cow.h
index dc36b222100b..6673508f3426 100644
--- a/arch/um/drivers/cow.h
+++ b/arch/um/drivers/cow.h
@@ -3,41 +3,6 @@
 
 #include <asm/types.h>
 
-#if defined(__KERNEL__)
-
-# include <asm/byteorder.h>
-
-# if defined(__BIG_ENDIAN)
-#       define ntohll(x) (x)
-#       define htonll(x) (x)
-# elif defined(__LITTLE_ENDIAN)
-#       define ntohll(x)  be64_to_cpu(x)
-#       define htonll(x)  cpu_to_be64(x)
-# else
-#       error "Could not determine byte order"
-# endif
-
-#else
-/* For the definition of ntohl, htonl and __BYTE_ORDER */
-#include <endian.h>
-#include <netinet/in.h>
-#if defined(__BYTE_ORDER)
-
-#  if __BYTE_ORDER == __BIG_ENDIAN
-#       define ntohll(x) (x)
-#       define htonll(x) (x)
-#  elif __BYTE_ORDER == __LITTLE_ENDIAN
-#       define ntohll(x)  bswap_64(x)
-#       define htonll(x)  bswap_64(x)
-#  else
-#       error "Could not determine byte order: __BYTE_ORDER uncorrectly defined"
-#  endif
-
-#else  /* ! defined(__BYTE_ORDER) */
-#       error "Could not determine byte order: __BYTE_ORDER not defined"
-#endif
-#endif /* ! defined(__KERNEL__) */
-
 extern int init_cow_file(int fd, char *cow_file, char *backing_file,
                          int sectorsize, int alignment, int *bitmap_offset_out,
                          unsigned long *bitmap_len_out, int *data_offset_out);
diff --git a/arch/um/drivers/cow_user.c b/arch/um/drivers/cow_user.c
index 9cbb426c0b91..0ee9cc6cc4c7 100644
--- a/arch/um/drivers/cow_user.c
+++ b/arch/um/drivers/cow_user.c
@@ -8,11 +8,10 @@
  * that.
  */
 #include <unistd.h>
-#include <byteswap.h>
 #include <errno.h>
 #include <string.h>
 #include <arpa/inet.h>
-#include <asm/types.h>
+#include <endian.h>
 #include "cow.h"
 #include "cow_sys.h"
 
@@ -214,8 +213,8 @@ int write_cow_header(char *cow_file, int fd, char *backing_file,
                            "header\n");
                 goto out;
         }
-        header->magic = htonl(COW_MAGIC);
-        header->version = htonl(COW_VERSION);
+        header->magic = htobe32(COW_MAGIC);
+        header->version = htobe32(COW_VERSION);
 
         err = -EINVAL;
         if (strlen(backing_file) > sizeof(header->backing_file) - 1) {
@@ -246,10 +245,10 @@ int write_cow_header(char *cow_file, int fd, char *backing_file,
                 goto out_free;
         }
 
-        header->mtime = htonl(modtime);
-        header->size = htonll(*size);
-        header->sectorsize = htonl(sectorsize);
-        header->alignment = htonl(alignment);
+        header->mtime = htobe32(modtime);
+        header->size = htobe64(*size);
+        header->sectorsize = htobe32(sectorsize);
+        header->alignment = htobe32(alignment);
         header->cow_format = COW_BITMAP;
 
         err = cow_write_file(fd, header, sizeof(*header));
@@ -301,8 +300,8 @@ int read_cow_header(int (*reader)(__u64, char *, int, void *), void *arg,
         magic = header->v1.magic;
         if (magic == COW_MAGIC)
                 version = header->v1.version;
-        else if (magic == ntohl(COW_MAGIC))
-                version = ntohl(header->v1.version);
+        else if (magic == be32toh(COW_MAGIC))
+                version = be32toh(header->v1.version);
         /* No error printed because the non-COW case comes through here */
         else goto out;
 
@@ -327,9 +326,9 @@ int read_cow_header(int (*reader)(__u64, char *, int, void *), void *arg,
                                    "header\n");
                         goto out;
                 }
-                *mtime_out = ntohl(header->v2.mtime);
-                *size_out = ntohll(header->v2.size);
-                *sectorsize_out = ntohl(header->v2.sectorsize);
+                *mtime_out = be32toh(header->v2.mtime);
+                *size_out = be64toh(header->v2.size);
+                *sectorsize_out = be32toh(header->v2.sectorsize);
                 *bitmap_offset_out = sizeof(header->v2);
                 *align_out = *sectorsize_out;
                 file = header->v2.backing_file;
@@ -341,10 +340,10 @@ int read_cow_header(int (*reader)(__u64, char *, int, void *), void *arg,
                                    "header\n");
                         goto out;
                 }
-                *mtime_out = ntohl(header->v3.mtime);
-                *size_out = ntohll(header->v3.size);
-                *sectorsize_out = ntohl(header->v3.sectorsize);
-                *align_out = ntohl(header->v3.alignment);
+                *mtime_out = be32toh(header->v3.mtime);
+                *size_out = be64toh(header->v3.size);
+                *sectorsize_out = be32toh(header->v3.sectorsize);
+                *align_out = be32toh(header->v3.alignment);
                 if (*align_out == 0) {
                         cow_printf("read_cow_header - invalid COW header, "
                                    "align == 0\n");
@@ -366,16 +365,16 @@ int read_cow_header(int (*reader)(__u64, char *, int, void *), void *arg,
                  * this was used until Dec2005 - 64bits are needed to represent
                  * 2038+. I.e. we can safely do this truncating cast.
                  *
-                 * Additionally, we must use ntohl() instead of ntohll(), since
+                 * Additionally, we must use be32toh() instead of be64toh(), since
                  * the program used to use the former (tested - I got mtime
                  * mismatch "0 vs whatever").
                  *
                  * Ever heard about bug-to-bug-compatibility ? ;-) */
-                *mtime_out = (time32_t) ntohl(header->v3_b.mtime);
+                *mtime_out = (time32_t) be32toh(header->v3_b.mtime);
 
-                *size_out = ntohll(header->v3_b.size);
-                *sectorsize_out = ntohl(header->v3_b.sectorsize);
-                *align_out = ntohl(header->v3_b.alignment);
+                *size_out = be64toh(header->v3_b.size);
+                *sectorsize_out = be32toh(header->v3_b.sectorsize);
+                *align_out = be32toh(header->v3_b.alignment);
                 if (*align_out == 0) {
                         cow_printf("read_cow_header - invalid COW header, "
                                    "align == 0\n");
diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c
index e672bd6d43e3..43b39d61b538 100644
--- a/arch/um/drivers/mconsole_kern.c
+++ b/arch/um/drivers/mconsole_kern.c
@@ -22,6 +22,7 @@
 #include <linux/workqueue.h>
 #include <linux/mutex.h>
 #include <asm/uaccess.h>
+#include <asm/switch_to.h>
 
 #include "init.h"
 #include "irq_kern.h"
diff --git a/arch/um/include/asm/Kbuild b/arch/um/include/asm/Kbuild
index 8419f5cf2ac7..fff24352255d 100644
--- a/arch/um/include/asm/Kbuild
+++ b/arch/um/include/asm/Kbuild
@@ -1,3 +1,4 @@
 generic-y += bug.h cputime.h device.h emergency-restart.h futex.h hardirq.h
 generic-y += hw_irq.h irq_regs.h kdebug.h percpu.h sections.h topology.h xor.h
-generic-y += ftrace.h pci.h io.h param.h delay.h mutex.h current.h
+generic-y += ftrace.h pci.h io.h param.h delay.h mutex.h current.h exec.h
+generic-y += switch_to.h
diff --git a/arch/um/kernel/Makefile b/arch/um/kernel/Makefile
index 492bc4c1b62b..65a1c3d690ea 100644
--- a/arch/um/kernel/Makefile
+++ b/arch/um/kernel/Makefile
@@ -3,9 +3,10 @@
 # Licensed under the GPL
 #
 
-CPPFLAGS_vmlinux.lds := -DSTART=$(LDS_START) \
-                        -DELF_ARCH=$(LDS_ELF_ARCH)        \
-                        -DELF_FORMAT=$(LDS_ELF_FORMAT)
+CPPFLAGS_vmlinux.lds := -DSTART=$(LDS_START)            \
+                        -DELF_ARCH=$(LDS_ELF_ARCH)      \
+                        -DELF_FORMAT=$(LDS_ELF_FORMAT)  \
+                        $(LDS_EXTRA)
 extra-y := vmlinux.lds
 clean-files :=
 
diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
index f386d04a84a5..2b73dedb44ca 100644
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@ -88,11 +88,8 @@ static inline void set_current(struct task_struct *task)
 
 extern void arch_switch_to(struct task_struct *to);
 
-void *_switch_to(void *prev, void *next, void *last)
+void *__switch_to(struct task_struct *from, struct task_struct *to)
 {
-        struct task_struct *from = prev;
-        struct task_struct *to = next;
-
         to->thread.prev_sched = from;
         set_current(to);
 
@@ -111,7 +108,6 @@ void *_switch_to(void *prev, void *next, void *last)
         } while (current->thread.saved_task);
 
         return current->thread.prev_sched;
-
 }
 
 void interrupt_end(void)
diff --git a/arch/um/kernel/skas/mmu.c b/arch/um/kernel/skas/mmu.c
index 4947b319f53a..0a49ef0c2bf4 100644
--- a/arch/um/kernel/skas/mmu.c
+++ b/arch/um/kernel/skas/mmu.c
@@ -103,7 +103,6 @@ int init_new_context(struct task_struct *task, struct mm_struct *mm)
 
 void uml_setup_stubs(struct mm_struct *mm)
 {
-        struct page **pages;
         int err, ret;
 
         if (!skas_needs_stub)
diff --git a/arch/um/kernel/skas/process.c b/arch/um/kernel/skas/process.c
index 2e9852c0d487..0a9e57e7446b 100644
--- a/arch/um/kernel/skas/process.c
+++ b/arch/um/kernel/skas/process.c
@@ -41,7 +41,7 @@ static int __init start_kernel_proc(void *unused)
         cpu_tasks[0].pid = pid;
         cpu_tasks[0].task = current;
 #ifdef CONFIG_SMP
-        cpu_online_map = cpumask_of_cpu(0);
+        init_cpu_online(get_cpu_mask(0));
 #endif
         start_kernel();
         return 0;
diff --git a/arch/um/kernel/smp.c b/arch/um/kernel/smp.c
index 155206a66908..6f588e160fb0 100644
--- a/arch/um/kernel/smp.c
+++ b/arch/um/kernel/smp.c
@@ -76,7 +76,7 @@ static int idle_proc(void *cpup)
                 cpu_relax();
 
         notify_cpu_starting(cpu);
-        cpu_set(cpu, cpu_online_map);
+        set_cpu_online(cpu, true);
         default_idle();
         return 0;
 }
@@ -110,8 +110,7 @@ void smp_prepare_cpus(unsigned int maxcpus)
         for (i = 0; i < ncpus; ++i)
                 set_cpu_possible(i, true);
 
-        cpu_clear(me, cpu_online_map);
-        cpu_set(me, cpu_online_map);
+        set_cpu_online(me, true);
         cpu_set(me, cpu_callin_map);
 
         err = os_pipe(cpu_data[me].ipi_pipe, 1, 1);
@@ -138,13 +137,13 @@ void smp_prepare_cpus(unsigned int maxcpus)
 
 void smp_prepare_boot_cpu(void)
 {
-        cpu_set(smp_processor_id(), cpu_online_map);
+        set_cpu_online(smp_processor_id(), true);
 }
 
 int __cpu_up(unsigned int cpu)
 {
         cpu_set(cpu, smp_commenced_mask);
-        while (!cpu_isset(cpu, cpu_online_map))
+        while (!cpu_online(cpu))
                 mb();
         return 0;
 }
diff --git a/arch/unicore32/include/asm/dma-mapping.h b/arch/unicore32/include/asm/dma-mapping.h
index 9258e592f414..366460a81796 100644
--- a/arch/unicore32/include/asm/dma-mapping.h
+++ b/arch/unicore32/include/asm/dma-mapping.h
@@ -82,20 +82,26 @@ static inline int dma_set_mask(struct device *dev, u64 dma_mask)
         return 0;
 }
 
-static inline void *dma_alloc_coherent(struct device *dev, size_t size,
-                                       dma_addr_t *dma_handle, gfp_t flag)
+#define dma_alloc_coherent(d,s,h,f)     dma_alloc_attrs(d,s,h,f,NULL)
+
+static inline void *dma_alloc_attrs(struct device *dev, size_t size,
+                                    dma_addr_t *dma_handle, gfp_t flag,
+                                    struct dma_attrs *attrs)
 {
         struct dma_map_ops *dma_ops = get_dma_ops(dev);
 
-        return dma_ops->alloc_coherent(dev, size, dma_handle, flag);
+        return dma_ops->alloc(dev, size, dma_handle, flag, attrs);
 }
 
-static inline void dma_free_coherent(struct device *dev, size_t size,
-                                     void *cpu_addr, dma_addr_t dma_handle)
+#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL)
+
+static inline void dma_free_attrs(struct device *dev, size_t size,
+                                  void *cpu_addr, dma_addr_t dma_handle,
+                                  struct dma_attrs *attrs)
 {
         struct dma_map_ops *dma_ops = get_dma_ops(dev);
 
-        dma_ops->free_coherent(dev, size, cpu_addr, dma_handle);
+        dma_ops->free(dev, size, cpu_addr, dma_handle, attrs);
 }
 
 #define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
diff --git a/arch/unicore32/mm/dma-swiotlb.c b/arch/unicore32/mm/dma-swiotlb.c
index bfa9fbb2bbb1..16c08b2143a7 100644
--- a/arch/unicore32/mm/dma-swiotlb.c
+++ b/arch/unicore32/mm/dma-swiotlb.c
@@ -17,9 +17,23 @@
 
 #include <asm/dma.h>
 
+static void *unicore_swiotlb_alloc_coherent(struct device *dev, size_t size,
+                                            dma_addr_t *dma_handle, gfp_t flags,
+                                            struct dma_attrs *attrs)
+{
+        return swiotlb_alloc_coherent(dev, size, dma_handle, flags);
+}
+
+static void unicore_swiotlb_free_coherent(struct device *dev, size_t size,
+                                          void *vaddr, dma_addr_t dma_addr,
+                                          struct dma_attrs *attrs)
+{
+        swiotlb_free_coherent(dev, size, vaddr, dma_addr);
+}
+
 struct dma_map_ops swiotlb_dma_map_ops = {
-        .alloc_coherent = swiotlb_alloc_coherent,
-        .free_coherent = swiotlb_free_coherent,
+        .alloc = unicore_swiotlb_alloc_coherent,
+        .free = unicore_swiotlb_free_coherent,
         .map_sg = swiotlb_map_sg_attrs,
         .unmap_sg = swiotlb_unmap_sg_attrs,
         .dma_supported = swiotlb_dma_supported,
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 1d14cc6b79ad..c9866b0b77d8 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -81,7 +81,7 @@ config X86
         select CLKEVT_I8253
         select ARCH_HAVE_NMI_SAFE_CMPXCHG
         select GENERIC_IOMAP
-        select DCACHE_WORD_ACCESS if !DEBUG_PAGEALLOC
+        select DCACHE_WORD_ACCESS
 
 config INSTRUCTION_DECODER
         def_bool (KPROBES || PERF_EVENTS)
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 968dbe24a255..41a7237606a3 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -129,6 +129,7 @@ KBUILD_CFLAGS += -Wno-sign-compare
 KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
 # prevent gcc from generating any FP code by mistake
 KBUILD_CFLAGS += $(call cc-option,-mno-sse -mno-mmx -mno-sse2 -mno-3dnow,)
+KBUILD_CFLAGS += $(call cc-option,-mno-avx,)
 
 KBUILD_CFLAGS += $(mflags-y)
 KBUILD_AFLAGS += $(mflags-y)
diff --git a/arch/x86/Makefile.um b/arch/x86/Makefile.um
index 4be406abeefd..36b62bc52638 100644
--- a/arch/x86/Makefile.um
+++ b/arch/x86/Makefile.um
@@ -14,6 +14,9 @@ LINK-y			+= $(call cc-option,-m32)
 
 export LDFLAGS
 
+LDS_EXTRA               := -Ui386
+export LDS_EXTRA
+
 # First of all, tune CFLAGS for the specific CPU. This actually sets cflags-y.
 include $(srctree)/arch/x86/Makefile_32.cpu
 
diff --git a/arch/x86/boot/compressed/head_32.S b/arch/x86/boot/compressed/head_32.S
index a0559930a180..c85e3ac99bba 100644
--- a/arch/x86/boot/compressed/head_32.S
+++ b/arch/x86/boot/compressed/head_32.S
@@ -33,6 +33,9 @@
         __HEAD
 ENTRY(startup_32)
 #ifdef CONFIG_EFI_STUB
+        jmp     preferred_addr
+
+        .balign 0x10
         /*
          * We don't need the return address, so set up the stack so
          * efi_main() can find its arugments.
@@ -41,12 +44,17 @@ ENTRY(startup_32)
 
         call    efi_main
         cmpl    $0, %eax
-        je      preferred_addr
         movl    %eax, %esi
-        call    1f
+        jne     2f
 1:
+        /* EFI init failed, so hang. */
+        hlt
+        jmp     1b
+2:
+        call    3f
+3:
         popl    %eax
-        subl    $1b, %eax
+        subl    $3b, %eax
         subl    BP_pref_address(%esi), %eax
         add     BP_code32_start(%esi), %eax
         leal    preferred_addr(%eax), %eax
diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
index 558d76ce23bc..87e03a13d8e3 100644
--- a/arch/x86/boot/compressed/head_64.S
+++ b/arch/x86/boot/compressed/head_64.S
@@ -200,18 +200,28 @@ ENTRY(startup_64)
          * entire text+data+bss and hopefully all of memory.
          */
 #ifdef CONFIG_EFI_STUB
-        pushq   %rsi
+        /*
+         * The entry point for the PE/COFF executable is 0x210, so only
+         * legacy boot loaders will execute this jmp.
+         */
+        jmp     preferred_addr
+
+        .org 0x210
         mov     %rcx, %rdi
         mov     %rdx, %rsi
         call    efi_main
-        popq    %rsi
-        cmpq    $0,%rax
-        je      preferred_addr
         movq    %rax,%rsi
-        call    1f
+        cmpq    $0,%rax
+        jne     2f
 1:
+        /* EFI init failed, so hang. */
+        hlt
+        jmp     1b
+2:
+        call    3f
+3:
         popq    %rax
-        subq    $1b, %rax
+        subq    $3b, %rax
         subq    BP_pref_address(%rsi), %rax
         add     BP_code32_start(%esi), %eax
         leaq    preferred_addr(%rax), %rax
diff --git a/arch/x86/boot/compressed/relocs.c b/arch/x86/boot/compressed/relocs.c
index d3c0b0277666..fb7117a4ade1 100644
--- a/arch/x86/boot/compressed/relocs.c
+++ b/arch/x86/boot/compressed/relocs.c
@@ -403,13 +403,11 @@ static void print_absolute_symbols(void)
         for (i = 0; i < ehdr.e_shnum; i++) {
                 struct section *sec = &secs[i];
                 char *sym_strtab;
-                Elf32_Sym *sh_symtab;
                 int j;
 
                 if (sec->shdr.sh_type != SHT_SYMTAB) {
                         continue;
                 }
-                sh_symtab = sec->symtab;
                 sym_strtab = sec->link->strtab;
                 for (j = 0; j < sec->shdr.sh_size/sizeof(Elf32_Sym); j++) {
                         Elf32_Sym *sym;
diff --git a/arch/x86/boot/tools/build.c b/arch/x86/boot/tools/build.c
index ed549767a231..24443a332083 100644
--- a/arch/x86/boot/tools/build.c
+++ b/arch/x86/boot/tools/build.c
@@ -205,8 +205,13 @@ int main(int argc, char ** argv)
         put_unaligned_le32(file_sz, &buf[pe_header + 0x50]);
 
 #ifdef CONFIG_X86_32
-        /* Address of entry point */
-        put_unaligned_le32(i, &buf[pe_header + 0x28]);
+        /*
+         * Address of entry point.
+         *
+         * The EFI stub entry point is +16 bytes from the start of
+         * the .text section.
+         */
+        put_unaligned_le32(i + 16, &buf[pe_header + 0x28]);
 
         /* .text size */
         put_unaligned_le32(file_sz, &buf[pe_header + 0xb0]);
@@ -217,9 +222,11 @@ int main(int argc, char ** argv)
         /*
          * Address of entry point. startup_32 is at the beginning and
          * the 64-bit entry point (startup_64) is always 512 bytes
-         * after.
+         * after. The EFI stub entry point is 16 bytes after that, as
+         * the first instruction allows legacy loaders to jump over
+         * the EFI stub initialisation
          */
-        put_unaligned_le32(i + 512, &buf[pe_header + 0x28]);
+        put_unaligned_le32(i + 528, &buf[pe_header + 0x28]);
 
         /* .text size */
         put_unaligned_le32(file_sz, &buf[pe_header + 0xc0]);
diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c
index d511d951a052..07b3a68d2d29 100644
--- a/arch/x86/ia32/ia32_aout.c
+++ b/arch/x86/ia32/ia32_aout.c
@@ -119,9 +119,7 @@ static void set_brk(unsigned long start, unsigned long end)
         end = PAGE_ALIGN(end);
         if (end <= start)
                 return;
-        down_write(&current->mm->mmap_sem);
-        do_brk(start, end - start);
-        up_write(&current->mm->mmap_sem);
+        vm_brk(start, end - start);
 }
 
 #ifdef CORE_DUMP
@@ -296,8 +294,7 @@ static int load_aout_binary(struct linux_binprm *bprm, struct pt_regs *regs)
 
         /* OK, This is the point of no return */
         set_personality(PER_LINUX);
-        set_thread_flag(TIF_IA32);
-        current->mm->context.ia32_compat = 1;
+        set_personality_ia32(false);
 
         setup_new_exec(bprm);
 
@@ -332,9 +329,7 @@ static int load_aout_binary(struct linux_binprm *bprm, struct pt_regs *regs)
                 pos = 32;
                 map_size = ex.a_text+ex.a_data;
 
-                down_write(&current->mm->mmap_sem);
-                error = do_brk(text_addr & PAGE_MASK, map_size);
-                up_write(&current->mm->mmap_sem);
+                error = vm_brk(text_addr & PAGE_MASK, map_size);
 
                 if (error != (text_addr & PAGE_MASK)) {
                         send_sig(SIGKILL, current, 0);
@@ -373,9 +368,7 @@ static int load_aout_binary(struct linux_binprm *bprm, struct pt_regs *regs)
                 if (!bprm->file->f_op->mmap || (fd_offset & ~PAGE_MASK) != 0) {
                         loff_t pos = fd_offset;
 
-                        down_write(&current->mm->mmap_sem);
-                        do_brk(N_TXTADDR(ex), ex.a_text+ex.a_data);
-                        up_write(&current->mm->mmap_sem);
+                        vm_brk(N_TXTADDR(ex), ex.a_text+ex.a_data);
                         bprm->file->f_op->read(bprm->file,
                                         (char __user *)N_TXTADDR(ex),
                                         ex.a_text+ex.a_data, &pos);
@@ -385,26 +378,22 @@ static int load_aout_binary(struct linux_binprm *bprm, struct pt_regs *regs)
                         goto beyond_if;
                 }
 
-                down_write(&current->mm->mmap_sem);
-                error = do_mmap(bprm->file, N_TXTADDR(ex), ex.a_text,
+                error = vm_mmap(bprm->file, N_TXTADDR(ex), ex.a_text,
                                 PROT_READ | PROT_EXEC,
                                 MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE |
                                 MAP_EXECUTABLE | MAP_32BIT,
                                 fd_offset);
-                up_write(&current->mm->mmap_sem);
 
                 if (error != N_TXTADDR(ex)) {
                         send_sig(SIGKILL, current, 0);
                         return error;
                 }
 
-                down_write(&current->mm->mmap_sem);
-                error = do_mmap(bprm->file, N_DATADDR(ex), ex.a_data,
+                error = vm_mmap(bprm->file, N_DATADDR(ex), ex.a_data,
                                 PROT_READ | PROT_WRITE | PROT_EXEC,
                                 MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE |
                                 MAP_EXECUTABLE | MAP_32BIT,
                                 fd_offset + ex.a_text);
-                up_write(&current->mm->mmap_sem);
                 if (error != N_DATADDR(ex)) {
                         send_sig(SIGKILL, current, 0);
                         return error;
@@ -476,9 +465,7 @@ static int load_aout_library(struct file *file)
                         error_time = jiffies;
                 }
 #endif
-                down_write(&current->mm->mmap_sem);
-                do_brk(start_addr, ex.a_text + ex.a_data + ex.a_bss);
-                up_write(&current->mm->mmap_sem);
+                vm_brk(start_addr, ex.a_text + ex.a_data + ex.a_bss);
 
                 file->f_op->read(file, (char __user *)start_addr,
                         ex.a_text + ex.a_data, &pos);
@@ -490,12 +477,10 @@ static int load_aout_library(struct file *file)
                 goto out;
         }
         /* Now use mmap to map the library into memory. */
-        down_write(&current->mm->mmap_sem);
-        error = do_mmap(file, start_addr, ex.a_text + ex.a_data,
+        error = vm_mmap(file, start_addr, ex.a_text + ex.a_data,
                         PROT_READ | PROT_WRITE | PROT_EXEC,
                         MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_32BIT,
                         N_TXTOFF(ex));
-        up_write(&current->mm->mmap_sem);
         retval = error;
         if (error != start_addr)
                 goto out;
@@ -503,9 +488,7 @@ static int load_aout_library(struct file *file)
         len = PAGE_ALIGN(ex.a_text + ex.a_data);
         bss = ex.a_text + ex.a_data + ex.a_bss;
         if (bss > len) {
-                down_write(&current->mm->mmap_sem);
-                error = do_brk(start_addr + len, bss - len);
-                up_write(&current->mm->mmap_sem);
+                error = vm_brk(start_addr + len, bss - len);
                 retval = error;
                 if (error != start_addr + len)
                         goto out;
diff --git a/arch/x86/include/asm/cmpxchg.h b/arch/x86/include/asm/cmpxchg.h
index b3b733262909..99480e55973d 100644
--- a/arch/x86/include/asm/cmpxchg.h
+++ b/arch/x86/include/asm/cmpxchg.h
@@ -43,7 +43,7 @@ extern void __add_wrong_size(void)
                 switch (sizeof(*(ptr))) {                               \
                 case __X86_CASE_B:                                      \
                         asm volatile (lock #op "b %b0, %1\n"            \
-                                      : "+r" (__ret), "+m" (*(ptr))     \
+                                      : "+q" (__ret), "+m" (*(ptr))     \
                                       : : "memory", "cc");              \
                         break;                                          \
                 case __X86_CASE_W:                                      \
@@ -173,7 +173,7 @@ extern void __add_wrong_size(void)
                 switch (sizeof(*(ptr))) {                               \
                 case __X86_CASE_B:                                      \
                         asm volatile (lock "addb %b1, %0\n"             \
-                                      : "+m" (*(ptr)) : "ri" (inc)      \
+                                      : "+m" (*(ptr)) : "qi" (inc)      \
                                       : "memory", "cc");                \
                         break;                                          \
                 case __X86_CASE_W:                                      \
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index ed3065fd6314..4b4331d71935 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -59,7 +59,8 @@ extern int dma_supported(struct device *hwdev, u64 mask);
 extern int dma_set_mask(struct device *dev, u64 mask);
 
 extern void *dma_generic_alloc_coherent(struct device *dev, size_t size,
-                                        dma_addr_t *dma_addr, gfp_t flag);
+                                        dma_addr_t *dma_addr, gfp_t flag,
+                                        struct dma_attrs *attrs);
 
 static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 {
@@ -111,9 +112,11 @@ static inline gfp_t dma_alloc_coherent_gfp_flags(struct device *dev, gfp_t gfp)
        return gfp;
 }
 
+#define dma_alloc_coherent(d,s,h,f)     dma_alloc_attrs(d,s,h,f,NULL)
+
 static inline void *
-dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
-                gfp_t gfp)
+dma_alloc_attrs(struct device *dev, size_t size, dma_addr_t *dma_handle,
+                gfp_t gfp, struct dma_attrs *attrs)
 {
         struct dma_map_ops *ops = get_dma_ops(dev);
         void *memory;
@@ -129,18 +132,21 @@ dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
         if (!is_device_dma_capable(dev))
                 return NULL;
 
-        if (!ops->alloc_coherent)
+        if (!ops->alloc)
                 return NULL;
 
-        memory = ops->alloc_coherent(dev, size, dma_handle,
-                                     dma_alloc_coherent_gfp_flags(dev, gfp));
+        memory = ops->alloc(dev, size, dma_handle,
+                            dma_alloc_coherent_gfp_flags(dev, gfp), attrs);
         debug_dma_alloc_coherent(dev, size, *dma_handle, memory);
 
         return memory;
 }
 
-static inline void dma_free_coherent(struct device *dev, size_t size,
-                                     void *vaddr, dma_addr_t bus)
+#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL)
+
+static inline void dma_free_attrs(struct device *dev, size_t size,
+                                  void *vaddr, dma_addr_t bus,
+                                  struct dma_attrs *attrs)
 {
         struct dma_map_ops *ops = get_dma_ops(dev);
 
@@ -150,8 +156,8 @@ static inline void dma_free_coherent(struct device *dev, size_t size,
                 return;
 
         debug_dma_free_coherent(dev, size, vaddr, bus);
-        if (ops->free_coherent)
-                ops->free_coherent(dev, size, vaddr, bus);
+        if (ops->free)
+                ops->free(dev, size, vaddr, bus, attrs);
 }
 
 #endif
diff --git a/arch/x86/include/asm/posix_types.h b/arch/x86/include/asm/posix_types.h
index 3427b7798dbc..7ef7c3020e5c 100644
--- a/arch/x86/include/asm/posix_types.h
+++ b/arch/x86/include/asm/posix_types.h
@@ -7,9 +7,9 @@
 #else
 # ifdef __i386__
 #  include "posix_types_32.h"
-# elif defined(__LP64__)
-#  include "posix_types_64.h"
-# else
+# elif defined(__ILP32__)
 #  include "posix_types_x32.h"
+# else
+#  include "posix_types_64.h"
 # endif
 #endif
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 7284c9a6a0b5..4fa7dcceb6c0 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -974,16 +974,6 @@ extern bool cpu_has_amd_erratum(const int *);
 #define cpu_has_amd_erratum(x)  (false)
 #endif /* CONFIG_CPU_SUP_AMD */
 
-#ifdef CONFIG_X86_32
-/*
- * disable hlt during certain critical i/o operations
- */
-#define HAVE_DISABLE_HLT
-#endif
-
-void disable_hlt(void);
-void enable_hlt(void);
-
 void cpu_idle_wait(void);
 
 extern unsigned long arch_align_stack(unsigned long sp);
diff --git a/arch/x86/include/asm/sigcontext.h b/arch/x86/include/asm/sigcontext.h
index 4a085383af27..5ca71c065eef 100644
--- a/arch/x86/include/asm/sigcontext.h
+++ b/arch/x86/include/asm/sigcontext.h
@@ -257,7 +257,7 @@ struct sigcontext {
         __u64 oldmask;
         __u64 cr2;
         struct _fpstate __user *fpstate;        /* zero when no FPU context */
-#ifndef __LP64__
+#ifdef __ILP32__
         __u32 __fpstate_pad;
 #endif
         __u64 reserved1[8];
diff --git a/arch/x86/include/asm/siginfo.h b/arch/x86/include/asm/siginfo.h
index fc1aa5535646..34c47b3341c0 100644
--- a/arch/x86/include/asm/siginfo.h
+++ b/arch/x86/include/asm/siginfo.h
@@ -2,7 +2,13 @@
 #define _ASM_X86_SIGINFO_H
 
 #ifdef __x86_64__
-# define __ARCH_SI_PREAMBLE_SIZE        (4 * sizeof(int))
+# ifdef __ILP32__ /* x32 */
+typedef long long __kernel_si_clock_t __attribute__((aligned(4)));
+#  define __ARCH_SI_CLOCK_T             __kernel_si_clock_t
+#  define __ARCH_SI_ATTRIBUTES          __attribute__((aligned(8)))
+# else /* x86-64 */
+#  define __ARCH_SI_PREAMBLE_SIZE       (4 * sizeof(int))
+# endif
 #endif
 
 #include <asm-generic/siginfo.h>
diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h
index 8be5f54d9360..e0544597cfe7 100644
--- a/arch/x86/include/asm/uaccess.h
+++ b/arch/x86/include/asm/uaccess.h
@@ -557,6 +557,8 @@ struct __large_struct { unsigned long buf[100]; };
 
 extern unsigned long
 copy_from_user_nmi(void *to, const void __user *from, unsigned long n);
+extern __must_check long
+strncpy_from_user(char *dst, const char __user *src, long count);
 
 /*
  * movsl can be slow when source and dest are not both 8-byte aligned
diff --git a/arch/x86/include/asm/uaccess_32.h b/arch/x86/include/asm/uaccess_32.h
index 566e803cc602..8084bc73b18c 100644
--- a/arch/x86/include/asm/uaccess_32.h
+++ b/arch/x86/include/asm/uaccess_32.h
@@ -213,11 +213,6 @@ static inline unsigned long __must_check copy_from_user(void *to,
         return n;
 }
 
-long __must_check strncpy_from_user(char *dst, const char __user *src,
-                                    long count);
-long __must_check __strncpy_from_user(char *dst,
-                                      const char __user *src, long count);
-
 /**
  * strlen_user: - Get the size of a string in user space.
  * @str: The string to measure.
diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h
index 1c66d30971ad..fcd4b6f3ef02 100644
--- a/arch/x86/include/asm/uaccess_64.h
+++ b/arch/x86/include/asm/uaccess_64.h
@@ -208,10 +208,6 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
         }
 }
 
-__must_check long
-strncpy_from_user(char *dst, const char __user *src, long count);
-__must_check long
-__strncpy_from_user(char *dst, const char __user *src, long count);
 __must_check long strnlen_user(const char __user *str, long n);
 __must_check long __strnlen_user(const char __user *str, long n);
 __must_check long strlen_user(const char __user *str);
diff --git a/arch/x86/include/asm/unistd.h b/arch/x86/include/asm/unistd.h
index 37cdc9d99bb1..4437001d8e3d 100644
--- a/arch/x86/include/asm/unistd.h
+++ b/arch/x86/include/asm/unistd.h
@@ -63,10 +63,10 @@
 #else
 # ifdef __i386__
 #  include <asm/unistd_32.h>
-# elif defined(__LP64__)
-#  include <asm/unistd_64.h>
-# else
+# elif defined(__ILP32__)
 #  include <asm/unistd_x32.h>
+# else
+#  include <asm/unistd_64.h>
 # endif
 #endif
 
diff --git a/arch/x86/include/asm/word-at-a-time.h b/arch/x86/include/asm/word-at-a-time.h
new file mode 100644
index 000000000000..e58f03b206c3
--- /dev/null
+++ b/arch/x86/include/asm/word-at-a-time.h
@@ -0,0 +1,79 @@
+#ifndef _ASM_WORD_AT_A_TIME_H
+#define _ASM_WORD_AT_A_TIME_H
+
+/*
+ * This is largely generic for little-endian machines, but the
+ * optimal byte mask counting is probably going to be something
+ * that is architecture-specific. If you have a reliably fast
+ * bit count instruction, that might be better than the multiply
+ * and shift, for example.
+ */
+
+#ifdef CONFIG_64BIT
+
+/*
+ * Jan Achrenius on G+: microoptimized version of
+ * the simpler "(mask & ONEBYTES) * ONEBYTES >> 56"
+ * that works for the bytemasks without having to
+ * mask them first.
+ */
+static inline long count_masked_bytes(unsigned long mask)
+{
+        return mask*0x0001020304050608ul >> 56;
+}
+
+#else   /* 32-bit case */
+
+/* Carl Chatfield / Jan Achrenius G+ version for 32-bit */
+static inline long count_masked_bytes(long mask)
+{
+        /* (000000 0000ff 00ffff ffffff) -> ( 1 1 2 3 ) */
+        long a = (0x0ff0001+mask) >> 23;
+        /* Fix the 1 for 00 case */
+        return a & mask;
+}
+
+#endif
+
+#define REPEAT_BYTE(x)  ((~0ul / 0xff) * (x))
+
+/* Return the high bit set in the first byte that is a zero */
+static inline unsigned long has_zero(unsigned long a)
+{
+        return ((a - REPEAT_BYTE(0x01)) & ~a) & REPEAT_BYTE(0x80);
+}
+
+/*
+ * Load an unaligned word from kernel space.
+ *
+ * In the (very unlikely) case of the word being a page-crosser
+ * and the next page not being mapped, take the exception and
+ * return zeroes in the non-existing part.
+ */
+static inline unsigned long load_unaligned_zeropad(const void *addr)
+{
+        unsigned long ret, dummy;
+
+        asm(
+                "1:\tmov %2,%0\n"
+                "2:\n"
+                ".section .fixup,\"ax\"\n"
+                "3:\t"
+                "lea %2,%1\n\t"
+                "and %3,%1\n\t"
+                "mov (%1),%0\n\t"
+                "leal %2,%%ecx\n\t"
+                "andl %4,%%ecx\n\t"
+                "shll $3,%%ecx\n\t"
+                "shr %%cl,%0\n\t"
+                "jmp 2b\n"
+                ".previous\n"
+                _ASM_EXTABLE(1b, 3b)
+                :"=&r" (ret),"=&c" (dummy)
+                :"m" (*(unsigned long *)addr),
+                 "i" (-sizeof(unsigned long)),
+                 "i" (sizeof(unsigned long)-1));
+        return ret;
+}
+
+#endif /* _ASM_WORD_AT_A_TIME_H */
diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h
index baaca8defec8..764b66a4cf89 100644
--- a/arch/x86/include/asm/x86_init.h
+++ b/arch/x86/include/asm/x86_init.h
@@ -195,6 +195,5 @@ extern struct x86_msi_ops x86_msi;
 
 extern void x86_init_noop(void);
 extern void x86_init_uint_noop(unsigned int unused);
-extern void x86_default_fixup_cpu_id(struct cpuinfo_x86 *c, int node);
 
 #endif
diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c
index 103b6ab368d3..146a49c763a4 100644
--- a/arch/x86/kernel/acpi/sleep.c
+++ b/arch/x86/kernel/acpi/sleep.c
@@ -24,6 +24,10 @@ unsigned long acpi_realmode_flags;
 static char temp_stack[4096];
 #endif
 
+asmlinkage void acpi_enter_s3(void)
+{
+        acpi_enter_sleep_state(3, wake_sleep_flags);
+}
 /**
  * acpi_suspend_lowlevel - save kernel state
  *
diff --git a/arch/x86/kernel/acpi/sleep.h b/arch/x86/kernel/acpi/sleep.h
index 416d4be13fef..d68677a2a010 100644
--- a/arch/x86/kernel/acpi/sleep.h
+++ b/arch/x86/kernel/acpi/sleep.h
@@ -3,12 +3,16 @@
  */
 
 #include <asm/trampoline.h>
+#include <linux/linkage.h>
 
 extern unsigned long saved_video_mode;
 extern long saved_magic;
 
 extern int wakeup_pmode_return;
 
+extern u8 wake_sleep_flags;
+extern asmlinkage void acpi_enter_s3(void);
+
 extern unsigned long acpi_copy_wakeup_routine(unsigned long);
 extern void wakeup_long64(void);
 
diff --git a/arch/x86/kernel/acpi/wakeup_32.S b/arch/x86/kernel/acpi/wakeup_32.S
index 13ab720573e3..72610839f03b 100644
--- a/arch/x86/kernel/acpi/wakeup_32.S
+++ b/arch/x86/kernel/acpi/wakeup_32.S
@@ -74,9 +74,7 @@ restore_registers:
 ENTRY(do_suspend_lowlevel)
         call    save_processor_state
         call    save_registers
-        pushl   $3
-        call    acpi_enter_sleep_state
-        addl    $4, %esp
+        call    acpi_enter_s3
 
 #       In case of S3 failure, we'll emerge here.  Jump
 #       to ret_point to recover
diff --git a/arch/x86/kernel/acpi/wakeup_64.S b/arch/x86/kernel/acpi/wakeup_64.S
index 8ea5164cbd04..014d1d28c397 100644
--- a/arch/x86/kernel/acpi/wakeup_64.S
+++ b/arch/x86/kernel/acpi/wakeup_64.S
@@ -71,9 +71,7 @@ ENTRY(do_suspend_lowlevel)
         movq    %rsi, saved_rsi
 
         addq    $8, %rsp
-        movl    $3, %edi
-        xorl    %eax, %eax
-        call    acpi_enter_sleep_state
+        call    acpi_enter_s3
         /* in case something went wrong, restore the machine status and go on */
         jmp     resume_point
 
diff --git a/arch/x86/kernel/amd_gart_64.c b/arch/x86/kernel/amd_gart_64.c
index b1e7c7f7a0af..e66311200cbd 100644
--- a/arch/x86/kernel/amd_gart_64.c
+++ b/arch/x86/kernel/amd_gart_64.c
@@ -477,7 +477,7 @@ error:
 /* allocate and map a coherent mapping */
 static void *
 gart_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_addr,
-                    gfp_t flag)
+                    gfp_t flag, struct dma_attrs *attrs)
 {
         dma_addr_t paddr;
         unsigned long align_mask;
@@ -500,7 +500,8 @@ gart_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_addr,
                 }
                 __free_pages(page, get_order(size));
         } else
-                return dma_generic_alloc_coherent(dev, size, dma_addr, flag);
+                return dma_generic_alloc_coherent(dev, size, dma_addr, flag,
+                                                  attrs);
 
         return NULL;
 }
@@ -508,7 +509,7 @@ gart_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_addr,
 /* free a coherent mapping */
 static void
 gart_free_coherent(struct device *dev, size_t size, void *vaddr,
-                   dma_addr_t dma_addr)
+                   dma_addr_t dma_addr, struct dma_attrs *attrs)
 {
         gart_unmap_page(dev, dma_addr, size, DMA_BIDIRECTIONAL, NULL);
         free_pages((unsigned long)vaddr, get_order(size));
@@ -700,8 +701,8 @@ static struct dma_map_ops gart_dma_ops = {
         .unmap_sg                       = gart_unmap_sg,
         .map_page                       = gart_map_page,
         .unmap_page                     = gart_unmap_page,
-        .alloc_coherent                 = gart_alloc_coherent,
-        .free_coherent                  = gart_free_coherent,
+        .alloc                          = gart_alloc_coherent,
+        .free                           = gart_free_coherent,
         .mapping_error                  = gart_mapping_error,
 };
 
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index 11544d8f1e97..edc24480469f 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -1637,9 +1637,11 @@ static int __init apic_verify(void)
         mp_lapic_addr = APIC_DEFAULT_PHYS_BASE;
 
         /* The BIOS may have set up the APIC at some other address */
-        rdmsr(MSR_IA32_APICBASE, l, h);
-        if (l & MSR_IA32_APICBASE_ENABLE)
-                mp_lapic_addr = l & MSR_IA32_APICBASE_BASE;
+        if (boot_cpu_data.x86 >= 6) {
+                rdmsr(MSR_IA32_APICBASE, l, h);
+                if (l & MSR_IA32_APICBASE_ENABLE)
+                        mp_lapic_addr = l & MSR_IA32_APICBASE_BASE;
+        }
 
         pr_info("Found and enabled local APIC!\n");
         return 0;
@@ -1657,13 +1659,15 @@ int __init apic_force_enable(unsigned long addr)
          * MSR. This can only be done in software for Intel P6 or later
          * and AMD K7 (Model > 1) or later.
          */
-        rdmsr(MSR_IA32_APICBASE, l, h);
-        if (!(l & MSR_IA32_APICBASE_ENABLE)) {
-                pr_info("Local APIC disabled by BIOS -- reenabling.\n");
-                l &= ~MSR_IA32_APICBASE_BASE;
-                l |= MSR_IA32_APICBASE_ENABLE | addr;
-                wrmsr(MSR_IA32_APICBASE, l, h);
-                enabled_via_apicbase = 1;
+        if (boot_cpu_data.x86 >= 6) {
+                rdmsr(MSR_IA32_APICBASE, l, h);
+                if (!(l & MSR_IA32_APICBASE_ENABLE)) {
+                        pr_info("Local APIC disabled by BIOS -- reenabling.\n");
+                        l &= ~MSR_IA32_APICBASE_BASE;
+                        l |= MSR_IA32_APICBASE_ENABLE | addr;
+                        wrmsr(MSR_IA32_APICBASE, l, h);
+                        enabled_via_apicbase = 1;
+                }
         }
         return apic_verify();
 }
@@ -2209,10 +2213,12 @@ static void lapic_resume(void)
                  * FIXME! This will be wrong if we ever support suspend on
                  * SMP! We'll need to do this as part of the CPU restore!
                  */
-                rdmsr(MSR_IA32_APICBASE, l, h);
-                l &= ~MSR_IA32_APICBASE_BASE;
-                l |= MSR_IA32_APICBASE_ENABLE | mp_lapic_addr;
-                wrmsr(MSR_IA32_APICBASE, l, h);
+                if (boot_cpu_data.x86 >= 6) {
+                        rdmsr(MSR_IA32_APICBASE, l, h);
+                        l &= ~MSR_IA32_APICBASE_BASE;
+                        l |= MSR_IA32_APICBASE_ENABLE | mp_lapic_addr;
+                        wrmsr(MSR_IA32_APICBASE, l, h);
+                }
         }
 
         maxlvt = lapic_get_maxlvt();
diff --git a/arch/x86/kernel/apic/apic_numachip.c b/arch/x86/kernel/apic/apic_numachip.c
index 899803e03214..23e75422e013 100644
--- a/arch/x86/kernel/apic/apic_numachip.c
+++ b/arch/x86/kernel/apic/apic_numachip.c
@@ -207,8 +207,11 @@ static void __init map_csrs(void)
 
 static void fixup_cpu_id(struct cpuinfo_x86 *c, int node)
 {
-        c->phys_proc_id = node;
-        per_cpu(cpu_llc_id, smp_processor_id()) = node;
+
+        if (c->phys_proc_id != node) {
+                c->phys_proc_id = node;
+                per_cpu(cpu_llc_id, smp_processor_id()) = node;
+        }
 }
 
 static int __init numachip_system_init(void)
diff --git a/arch/x86/kernel/apic/x2apic_phys.c b/arch/x86/kernel/apic/x2apic_phys.c
index 8a778db45e3a..991e315f4227 100644
--- a/arch/x86/kernel/apic/x2apic_phys.c
+++ b/arch/x86/kernel/apic/x2apic_phys.c
@@ -24,6 +24,12 @@ static int x2apic_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
 {
         if (x2apic_phys)
                 return x2apic_enabled();
+        else if ((acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID) &&
+                (acpi_gbl_FADT.flags & ACPI_FADT_APIC_PHYSICAL) &&
+                x2apic_enabled()) {
+                printk(KERN_DEBUG "System requires x2apic physical mode\n");
+                return 1;
+        }
         else
                 return 0;
 }
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 0a44b90602b0..146bb6218eec 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -26,7 +26,8 @@
  *      contact AMD for precise details and a CPU swap.
  *
  *      See     http://www.multimania.com/poulot/k6bug.html
- *              http://www.amd.com/K6/k6docs/revgd.html
+ *      and     section 2.6.2 of "AMD-K6 Processor Revision Guide - Model 6"
+ *              (Publication # 21266  Issue Date: August 1998)
  *
  *      The following test is erm.. interesting. AMD neglected to up
  *      the chip setting when fixing the bug but they also tweaked some
@@ -94,7 +95,6 @@ static void __cpuinit init_amd_k6(struct cpuinfo_x86 *c)
                                 "system stability may be impaired when more than 32 MB are used.\n");
                 else
                         printk(KERN_CONT "probably OK (after B9730xxxx).\n");
-                printk(KERN_INFO "Please see http://membres.lycos.fr/poulot/k6bug.html\n");
         }
 
         /* K6 with old style WHCR */
@@ -353,10 +353,11 @@ static void __cpuinit srat_detect_node(struct cpuinfo_x86 *c)
                 node = per_cpu(cpu_llc_id, cpu);
 
         /*
-         * If core numbers are inconsistent, it's likely a multi-fabric platform,
-         * so invoke platform-specific handler
+         * On multi-fabric platform (e.g. Numascale NumaChip) a
+         * platform-specific handler needs to be called to fixup some
+         * IDs of the CPU.
          */
-        if (c->phys_proc_id != node)
+        if (x86_cpuinit.fixup_cpu_id)
                 x86_cpuinit.fixup_cpu_id(c, node);
 
         if (!node_online(node)) {
@@ -579,6 +580,24 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
                 }
         }
 
+        /* re-enable TopologyExtensions if switched off by BIOS */
+        if ((c->x86 == 0x15) &&
+            (c->x86_model >= 0x10) && (c->x86_model <= 0x1f) &&
+            !cpu_has(c, X86_FEATURE_TOPOEXT)) {
+                u64 val;
+
+                if (!rdmsrl_amd_safe(0xc0011005, &val)) {
+                        val |= 1ULL << 54;
+                        wrmsrl_amd_safe(0xc0011005, val);
+                        rdmsrl(0xc0011005, val);
+                        if (val & (1ULL << 54)) {
+                                set_cpu_cap(c, X86_FEATURE_TOPOEXT);
+                                printk(KERN_INFO FW_INFO "CPU: Re-enabling "
+                                  "disabled Topology Extensions Support\n");
+                        }
+                }
+        }
+
         cpu_detect_cache_sizes(c);
 
         /* Multi core CPU? */
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 67e258362a3d..cf79302198a6 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -1163,15 +1163,6 @@ static void dbg_restore_debug_regs(void)
 #endif /* ! CONFIG_KGDB */
 
 /*
- * Prints an error where the NUMA and configured core-number mismatch and the
- * platform didn't override this to fix it up
- */
-void __cpuinit x86_default_fixup_cpu_id(struct cpuinfo_x86 *c, int node)
-{
-        pr_err("NUMA core number %d differs from configured core number %d\n", node, c->phys_proc_id);
-}
-
-/*
  * cpu_init() initializes state that is per-CPU. Some data is already
  * initialized (naturally) in the bootstrap process, such as the GDT
  * and IDT. We reload them nevertheless, this function acts as a
diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c
index 73d08ed98a64..b8f3653dddbc 100644
--- a/arch/x86/kernel/cpu/intel_cacheinfo.c
+++ b/arch/x86/kernel/cpu/intel_cacheinfo.c
@@ -433,14 +433,14 @@ int amd_set_l3_disable_slot(struct amd_northbridge *nb, int cpu, unsigned slot,
         /*  check if @slot is already used or the index is already disabled */
         ret = amd_get_l3_disable_slot(nb, slot);
         if (ret >= 0)
-                return -EINVAL;
+                return -EEXIST;
 
         if (index > nb->l3_cache.indices)
                 return -EINVAL;
 
         /* check whether the other slot has disabled the same index already */
         if (index == amd_get_l3_disable_slot(nb, !slot))
-                return -EINVAL;
+                return -EEXIST;
 
         amd_l3_disable_index(nb, cpu, slot, index);
 
@@ -468,8 +468,8 @@ static ssize_t store_cache_disable(struct _cpuid4_info *this_leaf,
         err = amd_set_l3_disable_slot(this_leaf->base.nb, cpu, slot, val);
         if (err) {
                 if (err == -EEXIST)
-                        printk(KERN_WARNING "L3 disable slot %d in use!\n",
-                                            slot);
+                        pr_warning("L3 slot %d in use/index already disabled!\n",
+                                   slot);
                 return err;
         }
         return count;
diff --git a/arch/x86/kernel/cpu/perf_event_p4.c b/arch/x86/kernel/cpu/perf_event_p4.c
index ef484d9d0a25..a2dfacfd7103 100644
--- a/arch/x86/kernel/cpu/perf_event_p4.c
+++ b/arch/x86/kernel/cpu/perf_event_p4.c
@@ -1271,6 +1271,17 @@ done:
         return num ? -EINVAL : 0;
 }
 
+PMU_FORMAT_ATTR(cccr, "config:0-31" );
+PMU_FORMAT_ATTR(escr, "config:32-62");
+PMU_FORMAT_ATTR(ht,   "config:63"   );
+
+static struct attribute *intel_p4_formats_attr[] = {
+        &format_attr_cccr.attr,
+        &format_attr_escr.attr,
+        &format_attr_ht.attr,
+        NULL,
+};
+
 static __initconst const struct x86_pmu p4_pmu = {
         .name                   = "Netburst P4/Xeon",
         .handle_irq             = p4_pmu_handle_irq,
@@ -1305,6 +1316,8 @@ static __initconst const struct x86_pmu p4_pmu = {
          * the former idea is taken from OProfile code
          */
         .perfctr_second_write   = 1,
+
+        .format_attrs           = intel_p4_formats_attr,
 };
 
 __init int p4_pmu_init(void)
diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c
index 7734bcbb5a3a..2d6e6498c176 100644
--- a/arch/x86/kernel/i387.c
+++ b/arch/x86/kernel/i387.c
@@ -235,6 +235,7 @@ int init_fpu(struct task_struct *tsk)
         if (tsk_used_math(tsk)) {
                 if (HAVE_HWFP && tsk == current)
                         unlazy_fpu(tsk);
+                tsk->thread.fpu.last_cpu = ~0;
                 return 0;
         }
 
diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
index 7943e0c21bde..3dafc6003b7c 100644
--- a/arch/x86/kernel/irq.c
+++ b/arch/x86/kernel/irq.c
@@ -282,8 +282,13 @@ void fixup_irqs(void)
                 else if (!(warned++))
                         set_affinity = 0;
 
+                /*
+                 * We unmask if the irq was not marked masked by the
+                 * core code. That respects the lazy irq disable
+                 * behaviour.
+                 */
                 if (!irqd_can_move_in_process_context(data) &&
-                    !irqd_irq_disabled(data) && chip->irq_unmask)
+                    !irqd_irq_masked(data) && chip->irq_unmask)
                         chip->irq_unmask(data);
 
                 raw_spin_unlock(&desc->lock);
diff --git a/arch/x86/kernel/kdebugfs.c b/arch/x86/kernel/kdebugfs.c
index 90fcf62854bb..1d5d31ea686b 100644
--- a/arch/x86/kernel/kdebugfs.c
+++ b/arch/x86/kernel/kdebugfs.c
@@ -68,16 +68,9 @@ static ssize_t setup_data_read(struct file *file, char __user *user_buf,
         return count;
 }
 
-static int setup_data_open(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-
-        return 0;
-}
-
 static const struct file_operations fops_setup_data = {
         .read           = setup_data_read,
-        .open           = setup_data_open,
+        .open           = simple_open,
         .llseek         = default_llseek,
 };
 
diff --git a/arch/x86/kernel/kgdb.c b/arch/x86/kernel/kgdb.c
index db6720edfdd0..8bfb6146f753 100644
--- a/arch/x86/kernel/kgdb.c
+++ b/arch/x86/kernel/kgdb.c
@@ -43,6 +43,8 @@
 #include <linux/smp.h>
 #include <linux/nmi.h>
 #include <linux/hw_breakpoint.h>
+#include <linux/uaccess.h>
+#include <linux/memory.h>
 
 #include <asm/debugreg.h>
 #include <asm/apicdef.h>
@@ -741,6 +743,64 @@ void kgdb_arch_set_pc(struct pt_regs *regs, unsigned long ip)
         regs->ip = ip;
 }
 
+int kgdb_arch_set_breakpoint(struct kgdb_bkpt *bpt)
+{
+        int err;
+        char opc[BREAK_INSTR_SIZE];
+
+        bpt->type = BP_BREAKPOINT;
+        err = probe_kernel_read(bpt->saved_instr, (char *)bpt->bpt_addr,
+                                BREAK_INSTR_SIZE);
+        if (err)
+                return err;
+        err = probe_kernel_write((char *)bpt->bpt_addr,
+                                 arch_kgdb_ops.gdb_bpt_instr, BREAK_INSTR_SIZE);
+#ifdef CONFIG_DEBUG_RODATA
+        if (!err)
+                return err;
+        /*
+         * It is safe to call text_poke() because normal kernel execution
+         * is stopped on all cores, so long as the text_mutex is not locked.
+         */
+        if (mutex_is_locked(&text_mutex))
+                return -EBUSY;
+        text_poke((void *)bpt->bpt_addr, arch_kgdb_ops.gdb_bpt_instr,
+                  BREAK_INSTR_SIZE);
+        err = probe_kernel_read(opc, (char *)bpt->bpt_addr, BREAK_INSTR_SIZE);
+        if (err)
+                return err;
+        if (memcmp(opc, arch_kgdb_ops.gdb_bpt_instr, BREAK_INSTR_SIZE))
+                return -EINVAL;
+        bpt->type = BP_POKE_BREAKPOINT;
+#endif /* CONFIG_DEBUG_RODATA */
+        return err;
+}
+
+int kgdb_arch_remove_breakpoint(struct kgdb_bkpt *bpt)
+{
+#ifdef CONFIG_DEBUG_RODATA
+        int err;
+        char opc[BREAK_INSTR_SIZE];
+
+        if (bpt->type != BP_POKE_BREAKPOINT)
+                goto knl_write;
+        /*
+         * It is safe to call text_poke() because normal kernel execution
+         * is stopped on all cores, so long as the text_mutex is not locked.
+         */
+        if (mutex_is_locked(&text_mutex))
+                goto knl_write;
+        text_poke((void *)bpt->bpt_addr, bpt->saved_instr, BREAK_INSTR_SIZE);
+        err = probe_kernel_read(opc, (char *)bpt->bpt_addr, BREAK_INSTR_SIZE);
+        if (err || memcmp(opc, bpt->saved_instr, BREAK_INSTR_SIZE))
+                goto knl_write;
+        return err;
+knl_write:
+#endif /* CONFIG_DEBUG_RODATA */
+        return probe_kernel_write((char *)bpt->bpt_addr,
+                                  (char *)bpt->saved_instr, BREAK_INSTR_SIZE);
+}
+
 struct kgdb_arch arch_kgdb_ops = {
         /* Breakpoint instruction: */
         .gdb_bpt_instr          = { 0xcc },
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index 694d801bf606..e554e5ad2fe8 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -38,6 +38,7 @@
 #include <asm/traps.h>
 #include <asm/desc.h>
 #include <asm/tlbflush.h>
+#include <asm/idle.h>
 
 static int kvmapf = 1;
 
@@ -78,7 +79,6 @@ struct kvm_task_sleep_node {
         u32 token;
         int cpu;
         bool halted;
-        struct mm_struct *mm;
 };
 
 static struct kvm_task_sleep_head {
@@ -125,9 +125,7 @@ void kvm_async_pf_task_wait(u32 token)
 
         n.token = token;
         n.cpu = smp_processor_id();
-        n.mm = current->active_mm;
         n.halted = idle || preempt_count() > 1;
-        atomic_inc(&n.mm->mm_count);
         init_waitqueue_head(&n.wq);
         hlist_add_head(&n.link, &b->list);
         spin_unlock(&b->lock);
@@ -160,9 +158,6 @@ EXPORT_SYMBOL_GPL(kvm_async_pf_task_wait);
 static void apf_task_wake_one(struct kvm_task_sleep_node *n)
 {
         hlist_del_init(&n->link);
-        if (!n->mm)
-                return;
-        mmdrop(n->mm);
         if (n->halted)
                 smp_send_reschedule(n->cpu);
         else if (waitqueue_active(&n->wq))
@@ -206,7 +201,7 @@ again:
                  * async PF was not yet handled.
                  * Add dummy entry for the token.
                  */
-                n = kmalloc(sizeof(*n), GFP_ATOMIC);
+                n = kzalloc(sizeof(*n), GFP_ATOMIC);
                 if (!n) {
                         /*
                          * Allocation failed! Busy wait while other cpu
@@ -218,7 +213,6 @@ again:
                 }
                 n->token = token;
                 n->cpu = smp_processor_id();
-                n->mm = NULL;
                 init_waitqueue_head(&n->wq);
                 hlist_add_head(&n->link, &b->list);
         } else
@@ -253,7 +247,10 @@ do_async_page_fault(struct pt_regs *regs, unsigned long error_code)
                 kvm_async_pf_task_wait((u32)read_cr2());
                 break;
         case KVM_PV_REASON_PAGE_READY:
+                rcu_irq_enter();
+                exit_idle();
                 kvm_async_pf_task_wake((u32)read_cr2());
+                rcu_irq_exit();
                 break;
         }
 }
diff --git a/arch/x86/kernel/microcode_amd.c b/arch/x86/kernel/microcode_amd.c
index 73465aab28f8..8a2ce8fd41c0 100644
--- a/arch/x86/kernel/microcode_amd.c
+++ b/arch/x86/kernel/microcode_amd.c
@@ -82,11 +82,6 @@ static int collect_cpu_info_amd(int cpu, struct cpu_signature *csig)
 {
         struct cpuinfo_x86 *c = &cpu_data(cpu);
 
-        if (c->x86_vendor != X86_VENDOR_AMD || c->x86 < 0x10) {
-                pr_warning("CPU%d: family %d not supported\n", cpu, c->x86);
-                return -1;
-        }
-
         csig->rev = c->microcode;
         pr_info("CPU%d: patch_level=0x%08x\n", cpu, csig->rev);
 
@@ -380,6 +375,13 @@ static struct microcode_ops microcode_amd_ops = {
 
 struct microcode_ops * __init init_amd_microcode(void)
 {
+        struct cpuinfo_x86 *c = &cpu_data(0);
+
+        if (c->x86_vendor != X86_VENDOR_AMD || c->x86 < 0x10) {
+                pr_warning("AMD CPU family 0x%x not supported\n", c->x86);
+                return NULL;
+        }
+
         patch = (void *)get_zeroed_page(GFP_KERNEL);
         if (!patch)
                 return NULL;
diff --git a/arch/x86/kernel/microcode_core.c b/arch/x86/kernel/microcode_core.c
index 87a0f8688301..c9bda6d6035c 100644
--- a/arch/x86/kernel/microcode_core.c
+++ b/arch/x86/kernel/microcode_core.c
@@ -419,10 +419,8 @@ static int mc_device_add(struct device *dev, struct subsys_interface *sif)
         if (err)
                 return err;
 
-        if (microcode_init_cpu(cpu) == UCODE_ERROR) {
-                sysfs_remove_group(&dev->kobj, &mc_attr_group);
+        if (microcode_init_cpu(cpu) == UCODE_ERROR)
                 return -EINVAL;
-        }
 
         return err;
 }
@@ -528,11 +526,11 @@ static int __init microcode_init(void)
                 microcode_ops = init_intel_microcode();
         else if (c->x86_vendor == X86_VENDOR_AMD)
                 microcode_ops = init_amd_microcode();
-
-        if (!microcode_ops) {
+        else
                 pr_err("no support for this CPU vendor\n");
+
+        if (!microcode_ops)
                 return -ENODEV;
-        }
 
         microcode_pdev = platform_device_register_simple("microcode", -1,
                                                          NULL, 0);
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index 6ac5782f4d6b..d0b2fb9ccbb1 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -430,7 +430,7 @@ static void calgary_unmap_page(struct device *dev, dma_addr_t dma_addr,
 }
 
 static void* calgary_alloc_coherent(struct device *dev, size_t size,
-        dma_addr_t *dma_handle, gfp_t flag)
+        dma_addr_t *dma_handle, gfp_t flag, struct dma_attrs *attrs)
 {
         void *ret = NULL;
         dma_addr_t mapping;
@@ -463,7 +463,8 @@ error:
 }
 
 static void calgary_free_coherent(struct device *dev, size_t size,
-                                  void *vaddr, dma_addr_t dma_handle)
+                                  void *vaddr, dma_addr_t dma_handle,
+                                  struct dma_attrs *attrs)
 {
         unsigned int npages;
         struct iommu_table *tbl = find_iommu_table(dev);
@@ -476,8 +477,8 @@ static void calgary_free_coherent(struct device *dev, size_t size,
 }
 
 static struct dma_map_ops calgary_dma_ops = {
-        .alloc_coherent = calgary_alloc_coherent,
-        .free_coherent = calgary_free_coherent,
+        .alloc = calgary_alloc_coherent,
+        .free = calgary_free_coherent,
         .map_sg = calgary_map_sg,
         .unmap_sg = calgary_unmap_sg,
         .map_page = calgary_map_page,
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 28e5e06fcba4..3003250ac51d 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -96,7 +96,8 @@ void __init pci_iommu_alloc(void)
         }
 }
 void *dma_generic_alloc_coherent(struct device *dev, size_t size,
-                                 dma_addr_t *dma_addr, gfp_t flag)
+                                 dma_addr_t *dma_addr, gfp_t flag,
+                                 struct dma_attrs *attrs)
 {
         unsigned long dma_mask;
         struct page *page;
diff --git a/arch/x86/kernel/pci-nommu.c b/arch/x86/kernel/pci-nommu.c
index 3af4af810c07..f96050685b46 100644
--- a/arch/x86/kernel/pci-nommu.c
+++ b/arch/x86/kernel/pci-nommu.c
@@ -75,7 +75,7 @@ static int nommu_map_sg(struct device *hwdev, struct scatterlist *sg,
 }
 
 static void nommu_free_coherent(struct device *dev, size_t size, void *vaddr,
-                                dma_addr_t dma_addr)
+                                dma_addr_t dma_addr, struct dma_attrs *attrs)
 {
         free_pages((unsigned long)vaddr, get_order(size));
 }
@@ -96,8 +96,8 @@ static void nommu_sync_sg_for_device(struct device *dev,
 }
 
 struct dma_map_ops nommu_dma_ops = {
-        .alloc_coherent         = dma_generic_alloc_coherent,
-        .free_coherent          = nommu_free_coherent,
+        .alloc                  = dma_generic_alloc_coherent,
+        .free                   = nommu_free_coherent,
         .map_sg                 = nommu_map_sg,
         .map_page               = nommu_map_page,
         .sync_single_for_device = nommu_sync_single_for_device,
diff --git a/arch/x86/kernel/pci-swiotlb.c b/arch/x86/kernel/pci-swiotlb.c
index 8f972cbddef0..6c483ba98b9c 100644
--- a/arch/x86/kernel/pci-swiotlb.c
+++ b/arch/x86/kernel/pci-swiotlb.c
@@ -15,21 +15,30 @@
 int swiotlb __read_mostly;
 
 static void *x86_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
-                                        dma_addr_t *dma_handle, gfp_t flags)
+                                        dma_addr_t *dma_handle, gfp_t flags,
+                                        struct dma_attrs *attrs)
 {
         void *vaddr;
 
-        vaddr = dma_generic_alloc_coherent(hwdev, size, dma_handle, flags);
+        vaddr = dma_generic_alloc_coherent(hwdev, size, dma_handle, flags,
+                                           attrs);
         if (vaddr)
                 return vaddr;
 
         return swiotlb_alloc_coherent(hwdev, size, dma_handle, flags);
 }
 
+static void x86_swiotlb_free_coherent(struct device *dev, size_t size,
+                                      void *vaddr, dma_addr_t dma_addr,
+                                      struct dma_attrs *attrs)
+{
+        swiotlb_free_coherent(dev, size, vaddr, dma_addr);
+}
+
 static struct dma_map_ops swiotlb_dma_ops = {
         .mapping_error = swiotlb_dma_mapping_error,
-        .alloc_coherent = x86_swiotlb_alloc_coherent,
-        .free_coherent = swiotlb_free_coherent,
+        .alloc = x86_swiotlb_alloc_coherent,
+        .free = x86_swiotlb_free_coherent,
         .sync_single_for_cpu = swiotlb_sync_single_for_cpu,
         .sync_single_for_device = swiotlb_sync_single_for_device,
         .sync_sg_for_cpu = swiotlb_sync_sg_for_cpu,
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index a33afaa5ddb7..1d92a5ab6e8b 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -362,34 +362,10 @@ void (*pm_idle)(void);
 EXPORT_SYMBOL(pm_idle);
 #endif
 
-#ifdef CONFIG_X86_32
-/*
- * This halt magic was a workaround for ancient floppy DMA
- * wreckage. It should be safe to remove.
- */
-static int hlt_counter;
-void disable_hlt(void)
-{
-        hlt_counter++;
-}
-EXPORT_SYMBOL(disable_hlt);
-
-void enable_hlt(void)
-{
-        hlt_counter--;
-}
-EXPORT_SYMBOL(enable_hlt);
-
-static inline int hlt_use_halt(void)
-{
-        return (!hlt_counter && boot_cpu_data.hlt_works_ok);
-}
-#else
 static inline int hlt_use_halt(void)
 {
         return 1;
 }
-#endif
 
 #ifndef CONFIG_SMP
 static inline void play_dead(void)
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 733ca39f367e..43d8b48b23e6 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -423,6 +423,7 @@ void set_personality_ia32(bool x32)
                 current_thread_info()->status |= TS_COMPAT;
         }
 }
+EXPORT_SYMBOL_GPL(set_personality_ia32);
 
 unsigned long get_wchan(struct task_struct *p)
 {
diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
index 71f4727da373..5a98aa272184 100644
--- a/arch/x86/kernel/setup_percpu.c
+++ b/arch/x86/kernel/setup_percpu.c
@@ -185,10 +185,22 @@ void __init setup_per_cpu_areas(void)
 #endif
         rc = -EINVAL;
         if (pcpu_chosen_fc != PCPU_FC_PAGE) {
-                const size_t atom_size = cpu_has_pse ? PMD_SIZE : PAGE_SIZE;
                 const size_t dyn_size = PERCPU_MODULE_RESERVE +
                         PERCPU_DYNAMIC_RESERVE - PERCPU_FIRST_CHUNK_RESERVE;
+                size_t atom_size;
 
+                /*
+                 * On 64bit, use PMD_SIZE for atom_size so that embedded
+                 * percpu areas are aligned to PMD.  This, in the future,
+                 * can also allow using PMD mappings in vmalloc area.  Use
+                 * PAGE_SIZE on 32bit as vmalloc space is highly contended
+                 * and large vmalloc area allocs can easily fail.
+                 */
+#ifdef CONFIG_X86_64
+                atom_size = PMD_SIZE;
+#else
+                atom_size = PAGE_SIZE;
+#endif
                 rc = pcpu_embed_first_chunk(PERCPU_FIRST_CHUNK_RESERVE,
                                             dyn_size, atom_size,
                                             pcpu_cpu_distance,
diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c
index f386dc49f988..7515cf0e1805 100644
--- a/arch/x86/kernel/vsyscall_64.c
+++ b/arch/x86/kernel/vsyscall_64.c
@@ -216,9 +216,9 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address)
         current_thread_info()->sig_on_uaccess_error = 1;
 
         /*
-         * 0 is a valid user pointer (in the access_ok sense) on 32-bit and
+         * NULL is a valid user pointer (in the access_ok sense) on 32-bit and
          * 64-bit, so we don't need to special-case it here.  For all the
-         * vsyscalls, 0 means "don't write anything" not "write it at
+         * vsyscalls, NULL means "don't write anything" not "write it at
          * address 0".
          */
         ret = -EFAULT;
@@ -247,7 +247,7 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address)
 
                 ret = sys_getcpu((unsigned __user *)regs->di,
                                  (unsigned __user *)regs->si,
-                                 0);
+                                 NULL);
                 break;
         }
 
diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c
index e9f265fd79ae..9cf71d0b2d37 100644
--- a/arch/x86/kernel/x86_init.c
+++ b/arch/x86/kernel/x86_init.c
@@ -93,7 +93,6 @@ struct x86_init_ops x86_init __initdata = {
 struct x86_cpuinit_ops x86_cpuinit __cpuinitdata = {
         .early_percpu_clock_init        = x86_init_noop,
         .setup_percpu_clockev           = setup_secondary_APIC_clock,
-        .fixup_cpu_id                   = x86_default_fixup_cpu_id,
 };
 
 static void default_nmi_init(void) { };
diff --git a/arch/x86/kvm/pmu.c b/arch/x86/kvm/pmu.c
index a73f0c104813..2e88438ffd83 100644
--- a/arch/x86/kvm/pmu.c
+++ b/arch/x86/kvm/pmu.c
@@ -369,7 +369,7 @@ int kvm_pmu_set_msr(struct kvm_vcpu *vcpu, u32 index, u64 data)
         case MSR_CORE_PERF_FIXED_CTR_CTRL:
                 if (pmu->fixed_ctr_ctrl == data)
                         return 0;
-                if (!(data & 0xfffffffffffff444)) {
+                if (!(data & 0xfffffffffffff444ull)) {
                         reprogram_fixed_counters(pmu, data);
                         return 0;
                 }
@@ -459,17 +459,17 @@ void kvm_pmu_cpuid_update(struct kvm_vcpu *vcpu)
         pmu->available_event_types = ~entry->ebx & ((1ull << bitmap_len) - 1);
 
         if (pmu->version == 1) {
-                pmu->global_ctrl = (1 << pmu->nr_arch_gp_counters) - 1;
-                return;
+                pmu->nr_arch_fixed_counters = 0;
+        } else {
+                pmu->nr_arch_fixed_counters = min((int)(entry->edx & 0x1f),
+                                X86_PMC_MAX_FIXED);
+                pmu->counter_bitmask[KVM_PMC_FIXED] =
+                        ((u64)1 << ((entry->edx >> 5) & 0xff)) - 1;
         }
 
-        pmu->nr_arch_fixed_counters = min((int)(entry->edx & 0x1f),
-                        X86_PMC_MAX_FIXED);
-        pmu->counter_bitmask[KVM_PMC_FIXED] =
-                ((u64)1 << ((entry->edx >> 5) & 0xff)) - 1;
-        pmu->global_ctrl_mask = ~(((1 << pmu->nr_arch_gp_counters) - 1)
-                        | (((1ull << pmu->nr_arch_fixed_counters) - 1)
-                                << X86_PMC_IDX_FIXED));
+        pmu->global_ctrl = ((1 << pmu->nr_arch_gp_counters) - 1) |
+                (((1ull << pmu->nr_arch_fixed_counters) - 1) << X86_PMC_IDX_FIXED);
+        pmu->global_ctrl_mask = ~pmu->global_ctrl;
 }
 
 void kvm_pmu_init(struct kvm_vcpu *vcpu)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 280751c84724..4ff0ab9bc3c8 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -2210,9 +2210,12 @@ static int vmx_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data)
                 msr = find_msr_entry(vmx, msr_index);
                 if (msr) {
                         msr->data = data;
-                        if (msr - vmx->guest_msrs < vmx->save_nmsrs)
+                        if (msr - vmx->guest_msrs < vmx->save_nmsrs) {
+                                preempt_disable();
                                 kvm_set_shared_msr(msr->index, msr->data,
                                                    msr->mask);
+                                preempt_enable();
+                        }
                         break;
                 }
                 ret = kvm_set_msr_common(vcpu, msr_index, data);
@@ -3906,7 +3909,9 @@ static int vmx_vcpu_reset(struct kvm_vcpu *vcpu)
                 vmcs_write16(VIRTUAL_PROCESSOR_ID, vmx->vpid);
 
         vmx->vcpu.arch.cr0 = X86_CR0_NW | X86_CR0_CD | X86_CR0_ET;
+        vcpu->srcu_idx = srcu_read_lock(&vcpu->kvm->srcu);
         vmx_set_cr0(&vmx->vcpu, kvm_read_cr0(vcpu)); /* enter rmode */
+        srcu_read_unlock(&vcpu->kvm->srcu, vcpu->srcu_idx);
         vmx_set_cr4(&vmx->vcpu, 0);
         vmx_set_efer(&vmx->vcpu, 0);
         vmx_fpu_activate(&vmx->vcpu);
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 4044ce0bf7c1..185a2b823a2d 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -6336,13 +6336,11 @@ int kvm_arch_prepare_memory_region(struct kvm *kvm,
                 if (npages && !old.rmap) {
                         unsigned long userspace_addr;
 
-                        down_write(&current->mm->mmap_sem);
-                        userspace_addr = do_mmap(NULL, 0,
+                        userspace_addr = vm_mmap(NULL, 0,
                                                  npages * PAGE_SIZE,
                                                  PROT_READ | PROT_WRITE,
                                                  map_flags,
                                                  0);
-                        up_write(&current->mm->mmap_sem);
 
                         if (IS_ERR((void *)userspace_addr))
                                 return PTR_ERR((void *)userspace_addr);
@@ -6366,10 +6364,8 @@ void kvm_arch_commit_memory_region(struct kvm *kvm,
         if (!user_alloc && !old.user_alloc && old.rmap && !npages) {
                 int ret;
 
-                down_write(&current->mm->mmap_sem);
-                ret = do_munmap(current->mm, old.userspace_addr,
+                ret = vm_munmap(old.userspace_addr,
                                 old.npages * PAGE_SIZE);
-                up_write(&current->mm->mmap_sem);
                 if (ret < 0)
                         printk(KERN_WARNING
                                "kvm_vm_ioctl_set_memory_region: "
@@ -6585,6 +6581,7 @@ void kvm_arch_async_page_present(struct kvm_vcpu *vcpu,
                 kvm_inject_page_fault(vcpu, &fault);
         }
         vcpu->arch.apf.halted = false;
+        vcpu->arch.mp_state = KVM_MP_STATE_RUNNABLE;
 }
 
 bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu)
diff --git a/arch/x86/lib/insn.c b/arch/x86/lib/insn.c
index 25feb1ae71c5..b1e6c4b2e8eb 100644
--- a/arch/x86/lib/insn.c
+++ b/arch/x86/lib/insn.c
@@ -379,8 +379,8 @@ err_out:
         return;
 }
 
-/* Decode moffset16/32/64 */
-static void __get_moffset(struct insn *insn)
+/* Decode moffset16/32/64. Return 0 if failed */
+static int __get_moffset(struct insn *insn)
 {
         switch (insn->addr_bytes) {
         case 2:
@@ -397,15 +397,19 @@ static void __get_moffset(struct insn *insn)
                 insn->moffset2.value = get_next(int, insn);
                 insn->moffset2.nbytes = 4;
                 break;
+        default:        /* opnd_bytes must be modified manually */
+                goto err_out;
         }
         insn->moffset1.got = insn->moffset2.got = 1;
 
+        return 1;
+
 err_out:
-        return;
+        return 0;
 }
 
-/* Decode imm v32(Iz) */
-static void __get_immv32(struct insn *insn)
+/* Decode imm v32(Iz). Return 0 if failed */
+static int __get_immv32(struct insn *insn)
 {
         switch (insn->opnd_bytes) {
         case 2:
@@ -417,14 +421,18 @@ static void __get_immv32(struct insn *insn)
                 insn->immediate.value = get_next(int, insn);
                 insn->immediate.nbytes = 4;
                 break;
+        default:        /* opnd_bytes must be modified manually */
+                goto err_out;
         }
 
+        return 1;
+
 err_out:
-        return;
+        return 0;
 }
 
-/* Decode imm v64(Iv/Ov) */
-static void __get_immv(struct insn *insn)
+/* Decode imm v64(Iv/Ov), Return 0 if failed */
+static int __get_immv(struct insn *insn)
 {
         switch (insn->opnd_bytes) {
         case 2:
@@ -441,15 +449,18 @@ static void __get_immv(struct insn *insn)
                 insn->immediate2.value = get_next(int, insn);
                 insn->immediate2.nbytes = 4;
                 break;
+        default:        /* opnd_bytes must be modified manually */
+                goto err_out;
         }
         insn->immediate1.got = insn->immediate2.got = 1;
 
+        return 1;
 err_out:
-        return;
+        return 0;
 }
 
 /* Decode ptr16:16/32(Ap) */
-static void __get_immptr(struct insn *insn)
+static int __get_immptr(struct insn *insn)
 {
         switch (insn->opnd_bytes) {
         case 2:
@@ -462,14 +473,17 @@ static void __get_immptr(struct insn *insn)
                 break;
         case 8:
                 /* ptr16:64 is not exist (no segment) */
-                return;
+                return 0;
+        default:        /* opnd_bytes must be modified manually */
+                goto err_out;
         }
         insn->immediate2.value = get_next(unsigned short, insn);
         insn->immediate2.nbytes = 2;
         insn->immediate1.got = insn->immediate2.got = 1;
 
+        return 1;
 err_out:
-        return;
+        return 0;
 }
 
 /**
@@ -489,7 +503,8 @@ void insn_get_immediate(struct insn *insn)
                 insn_get_displacement(insn);
 
         if (inat_has_moffset(insn->attr)) {
-                __get_moffset(insn);
+                if (!__get_moffset(insn))
+                        goto err_out;
                 goto done;
         }
 
@@ -517,16 +532,20 @@ void insn_get_immediate(struct insn *insn)
                 insn->immediate2.nbytes = 4;
                 break;
         case INAT_IMM_PTR:
-                __get_immptr(insn);
+                if (!__get_immptr(insn))
+                        goto err_out;
                 break;
         case INAT_IMM_VWORD32:
-                __get_immv32(insn);
+                if (!__get_immv32(insn))
+                        goto err_out;
                 break;
         case INAT_IMM_VWORD:
-                __get_immv(insn);
+                if (!__get_immv(insn))
+                        goto err_out;
                 break;
         default:
-                break;
+                /* Here, insn must have an immediate, but failed */
+                goto err_out;
         }
         if (inat_has_second_immediate(insn->attr)) {
                 insn->immediate2.value = get_next(char, insn);
diff --git a/arch/x86/lib/usercopy.c b/arch/x86/lib/usercopy.c
index 97be9cb54483..d6ae30bbd7bb 100644
--- a/arch/x86/lib/usercopy.c
+++ b/arch/x86/lib/usercopy.c
@@ -7,6 +7,8 @@
 #include <linux/highmem.h>
 #include <linux/module.h>
 
+#include <asm/word-at-a-time.h>
+
 /*
  * best effort, GUP based copy_from_user() that is NMI-safe
  */
@@ -41,3 +43,104 @@ copy_from_user_nmi(void *to, const void __user *from, unsigned long n)
         return len;
 }
 EXPORT_SYMBOL_GPL(copy_from_user_nmi);
+
+static inline unsigned long count_bytes(unsigned long mask)
+{
+        mask = (mask - 1) & ~mask;
+        mask >>= 7;
+        return count_masked_bytes(mask);
+}
+
+/*
+ * Do a strncpy, return length of string without final '\0'.
+ * 'count' is the user-supplied count (return 'count' if we
+ * hit it), 'max' is the address space maximum (and we return
+ * -EFAULT if we hit it).
+ */
+static inline long do_strncpy_from_user(char *dst, const char __user *src, long count, unsigned long max)
+{
+        long res = 0;
+
+        /*
+         * Truncate 'max' to the user-specified limit, so that
+         * we only have one limit we need to check in the loop
+         */
+        if (max > count)
+                max = count;
+
+        while (max >= sizeof(unsigned long)) {
+                unsigned long c;
+
+                /* Fall back to byte-at-a-time if we get a page fault */
+                if (unlikely(__get_user(c,(unsigned long __user *)(src+res))))
+                        break;
+                /* This can write a few bytes past the NUL character, but that's ok */
+                *(unsigned long *)(dst+res) = c;
+                c = has_zero(c);
+                if (c)
+                        return res + count_bytes(c);
+                res += sizeof(unsigned long);
+                max -= sizeof(unsigned long);
+        }
+
+        while (max) {
+                char c;
+
+                if (unlikely(__get_user(c,src+res)))
+                        return -EFAULT;
+                dst[res] = c;
+                if (!c)
+                        return res;
+                res++;
+                max--;
+        }
+
+        /*
+         * Uhhuh. We hit 'max'. But was that the user-specified maximum
+         * too? If so, that's ok - we got as much as the user asked for.
+         */
+        if (res >= count)
+                return res;
+
+        /*
+         * Nope: we hit the address space limit, and we still had more
+         * characters the caller would have wanted. That's an EFAULT.
+         */
+        return -EFAULT;
+}
+
+/**
+ * strncpy_from_user: - Copy a NUL terminated string from userspace.
+ * @dst:   Destination address, in kernel space.  This buffer must be at
+ *         least @count bytes long.
+ * @src:   Source address, in user space.
+ * @count: Maximum number of bytes to copy, including the trailing NUL.
+ *
+ * Copies a NUL-terminated string from userspace to kernel space.
+ *
+ * On success, returns the length of the string (not including the trailing
+ * NUL).
+ *
+ * If access to userspace fails, returns -EFAULT (some data may have been
+ * copied).
+ *
+ * If @count is smaller than the length of the string, copies @count bytes
+ * and returns @count.
+ */
+long
+strncpy_from_user(char *dst, const char __user *src, long count)
+{
+        unsigned long max_addr, src_addr;
+
+        if (unlikely(count <= 0))
+                return 0;
+
+        max_addr = current_thread_info()->addr_limit.seg;
+        src_addr = (unsigned long)src;
+        if (likely(src_addr < max_addr)) {
+                unsigned long max = max_addr - src_addr;
+                return do_strncpy_from_user(dst, src, count, max);
+        }
+        return -EFAULT;
+}
+EXPORT_SYMBOL(strncpy_from_user);
diff --git a/arch/x86/lib/usercopy_32.c b/arch/x86/lib/usercopy_32.c
index d9b094ca7aaa..ef2a6a5d78e3 100644
--- a/arch/x86/lib/usercopy_32.c
+++ b/arch/x86/lib/usercopy_32.c
@@ -33,93 +33,6 @@ static inline int __movsl_is_ok(unsigned long a1, unsigned long a2, unsigned lon
         __movsl_is_ok((unsigned long)(a1), (unsigned long)(a2), (n))
 
 /*
- * Copy a null terminated string from userspace.
- */
-
-#define __do_strncpy_from_user(dst, src, count, res)                       \
-do {                                                                       \
-        int __d0, __d1, __d2;                                              \
-        might_fault();                                                     \
-        __asm__ __volatile__(                                              \
-                "       testl %1,%1\n"                                     \
-                "       jz 2f\n"                                           \
-                "0:     lodsb\n"                                           \
-                "       stosb\n"                                           \
-                "       testb %%al,%%al\n"                                 \
-                "       jz 1f\n"                                           \
-                "       decl %1\n"                                         \
-                "       jnz 0b\n"                                          \
-                "1:     subl %1,%0\n"                                      \
-                "2:\n"                                                     \
-                ".section .fixup,\"ax\"\n"                                 \
-                "3:     movl %5,%0\n"                                      \
-                "       jmp 2b\n"                                          \
-                ".previous\n"                                              \
-                _ASM_EXTABLE(0b,3b)                                        \
-                : "=&d"(res), "=&c"(count), "=&a" (__d0), "=&S" (__d1),    \
-                  "=&D" (__d2)                                             \
-                : "i"(-EFAULT), "0"(count), "1"(count), "3"(src), "4"(dst) \
-                : "memory");                                               \
-} while (0)
-
-/**
- * __strncpy_from_user: - Copy a NUL terminated string from userspace, with less checking.
- * @dst:   Destination address, in kernel space.  This buffer must be at
- *         least @count bytes long.
- * @src:   Source address, in user space.
- * @count: Maximum number of bytes to copy, including the trailing NUL.
- *
- * Copies a NUL-terminated string from userspace to kernel space.
- * Caller must check the specified block with access_ok() before calling
- * this function.
- *
- * On success, returns the length of the string (not including the trailing
- * NUL).
- *
- * If access to userspace fails, returns -EFAULT (some data may have been
- * copied).
- *
- * If @count is smaller than the length of the string, copies @count bytes
- * and returns @count.
- */
-long
-__strncpy_from_user(char *dst, const char __user *src, long count)
-{
-        long res;
-        __do_strncpy_from_user(dst, src, count, res);
-        return res;
-}
-EXPORT_SYMBOL(__strncpy_from_user);
-
-/**
- * strncpy_from_user: - Copy a NUL terminated string from userspace.
- * @dst:   Destination address, in kernel space.  This buffer must be at
- *         least @count bytes long.
- * @src:   Source address, in user space.
- * @count: Maximum number of bytes to copy, including the trailing NUL.
- *
- * Copies a NUL-terminated string from userspace to kernel space.
- *
- * On success, returns the length of the string (not including the trailing
- * NUL).
- *
- * If access to userspace fails, returns -EFAULT (some data may have been
- * copied).
- *
- * If @count is smaller than the length of the string, copies @count bytes
- * and returns @count.
- */
-long
-strncpy_from_user(char *dst, const char __user *src, long count)
-{
-        long res = -EFAULT;
-        if (access_ok(VERIFY_READ, src, 1))
-                __do_strncpy_from_user(dst, src, count, res);
-        return res;
-}
-EXPORT_SYMBOL(strncpy_from_user);
-
-/*
  * Zero Userspace
  */
 
diff --git a/arch/x86/lib/usercopy_64.c b/arch/x86/lib/usercopy_64.c
index b7c2849ffb66..0d0326f388c0 100644
--- a/arch/x86/lib/usercopy_64.c
+++ b/arch/x86/lib/usercopy_64.c
@@ -9,55 +9,6 @@
 #include <asm/uaccess.h>
 
 /*
- * Copy a null terminated string from userspace.
- */
-
-#define __do_strncpy_from_user(dst,src,count,res)                          \
-do {                                                                       \
-        long __d0, __d1, __d2;                                             \
-        might_fault();                                                     \
-        __asm__ __volatile__(                                              \
-                "       testq %1,%1\n"                                     \
-                "       jz 2f\n"                                           \
-                "0:     lodsb\n"                                           \
-                "       stosb\n"                                           \
-                "       testb %%al,%%al\n"                                 \
-                "       jz 1f\n"                                           \
-                "       decq %1\n"                                         \
-                "       jnz 0b\n"                                          \
-                "1:     subq %1,%0\n"                                      \
-                "2:\n"                                                     \
-                ".section .fixup,\"ax\"\n"                                 \
-                "3:     movq %5,%0\n"                                      \
-                "       jmp 2b\n"                                          \
-                ".previous\n"                                              \
-                _ASM_EXTABLE(0b,3b)                                        \
-                : "=&r"(res), "=&c"(count), "=&a" (__d0), "=&S" (__d1),    \
-                  "=&D" (__d2)                                             \
-                : "i"(-EFAULT), "0"(count), "1"(count), "3"(src), "4"(dst) \
-                : "memory");                                               \
-} while (0)
-
-long
-__strncpy_from_user(char *dst, const char __user *src, long count)
-{
-        long res;
-        __do_strncpy_from_user(dst, src, count, res);
-        return res;
-}
-EXPORT_SYMBOL(__strncpy_from_user);
-
-long
-strncpy_from_user(char *dst, const char __user *src, long count)
-{
-        long res = -EFAULT;
-        if (access_ok(VERIFY_READ, src, 1))
-                return __strncpy_from_user(dst, src, count);
-        return res;
-}
-EXPORT_SYMBOL(strncpy_from_user);
-
-/*
  * Zero Userspace
  */
 
diff --git a/arch/x86/net/bpf_jit.S b/arch/x86/net/bpf_jit.S
index 66870223f8c5..877b9a1b2152 100644
--- a/arch/x86/net/bpf_jit.S
+++ b/arch/x86/net/bpf_jit.S
@@ -18,17 +18,17 @@
  * r9d : hlen = skb->len - skb->data_len
  */
 #define SKBDATA %r8
-
-sk_load_word_ind:
-        .globl  sk_load_word_ind
-
-        add     %ebx,%esi       /* offset += X */
-#       test    %esi,%esi       /* if (offset < 0) goto bpf_error; */
-        js      bpf_error
+#define SKF_MAX_NEG_OFF    $(-0x200000) /* SKF_LL_OFF from filter.h */
 
 sk_load_word:
         .globl  sk_load_word
 
+        test    %esi,%esi
+        js      bpf_slow_path_word_neg
+
+sk_load_word_positive_offset:
+        .globl  sk_load_word_positive_offset
+
         mov     %r9d,%eax               # hlen
         sub     %esi,%eax               # hlen - offset
         cmp     $3,%eax
@@ -37,16 +37,15 @@ sk_load_word:
         bswap   %eax                    /* ntohl() */
         ret
 
-
-sk_load_half_ind:
-        .globl sk_load_half_ind
-
-        add     %ebx,%esi       /* offset += X */
-        js      bpf_error
-
 sk_load_half:
         .globl  sk_load_half
 
+        test    %esi,%esi
+        js      bpf_slow_path_half_neg
+
+sk_load_half_positive_offset:
+        .globl  sk_load_half_positive_offset
+
         mov     %r9d,%eax
         sub     %esi,%eax               #       hlen - offset
         cmp     $1,%eax
@@ -55,14 +54,15 @@ sk_load_half:
         rol     $8,%ax                  # ntohs()
         ret
 
-sk_load_byte_ind:
-        .globl sk_load_byte_ind
-        add     %ebx,%esi       /* offset += X */
-        js      bpf_error
-
 sk_load_byte:
         .globl  sk_load_byte
 
+        test    %esi,%esi
+        js      bpf_slow_path_byte_neg
+
+sk_load_byte_positive_offset:
+        .globl  sk_load_byte_positive_offset
+
         cmp     %esi,%r9d   /* if (offset >= hlen) goto bpf_slow_path_byte */
         jle     bpf_slow_path_byte
         movzbl  (SKBDATA,%rsi),%eax
@@ -73,25 +73,21 @@ sk_load_byte:
  *
  * Implements BPF_S_LDX_B_MSH : ldxb  4*([offset]&0xf)
  * Must preserve A accumulator (%eax)
- * Inputs : %esi is the offset value, already known positive
+ * Inputs : %esi is the offset value
  */
-ENTRY(sk_load_byte_msh)
-        CFI_STARTPROC
+sk_load_byte_msh:
+        .globl  sk_load_byte_msh
+        test    %esi,%esi
+        js      bpf_slow_path_byte_msh_neg
+
+sk_load_byte_msh_positive_offset:
+        .globl  sk_load_byte_msh_positive_offset
         cmp     %esi,%r9d      /* if (offset >= hlen) goto bpf_slow_path_byte_msh */
         jle     bpf_slow_path_byte_msh
         movzbl  (SKBDATA,%rsi),%ebx
         and     $15,%bl
         shl     $2,%bl
         ret
-        CFI_ENDPROC
-ENDPROC(sk_load_byte_msh)
-
-bpf_error:
-# force a return 0 from jit handler
-        xor             %eax,%eax
-        mov             -8(%rbp),%rbx
-        leaveq
-        ret
 
 /* rsi contains offset and can be scratched */
 #define bpf_slow_path_common(LEN)               \
@@ -138,3 +134,67 @@ bpf_slow_path_byte_msh:
         shl     $2,%al
         xchg    %eax,%ebx
         ret
+
+#define sk_negative_common(SIZE)                                \
+        push    %rdi;   /* save skb */                          \
+        push    %r9;                                            \
+        push    SKBDATA;                                        \
+/* rsi already has offset */                                    \
+        mov     $SIZE,%ecx;     /* size */                      \
+        call    bpf_internal_load_pointer_neg_helper;           \
+        test    %rax,%rax;                                      \
+        pop     SKBDATA;                                        \
+        pop     %r9;                                            \
+        pop     %rdi;                                           \
+        jz      bpf_error
+
+
+bpf_slow_path_word_neg:
+        cmp     SKF_MAX_NEG_OFF, %esi   /* test range */
+        jl      bpf_error       /* offset lower -> error  */
+sk_load_word_negative_offset:
+        .globl  sk_load_word_negative_offset
+        sk_negative_common(4)
+        mov     (%rax), %eax
+        bswap   %eax
+        ret
+
+bpf_slow_path_half_neg:
+        cmp     SKF_MAX_NEG_OFF, %esi
+        jl      bpf_error
+sk_load_half_negative_offset:
+        .globl  sk_load_half_negative_offset
+        sk_negative_common(2)
+        mov     (%rax),%ax
+        rol     $8,%ax
+        movzwl  %ax,%eax
+        ret
+
+bpf_slow_path_byte_neg:
+        cmp     SKF_MAX_NEG_OFF, %esi
+        jl      bpf_error
+sk_load_byte_negative_offset:
+        .globl  sk_load_byte_negative_offset
+        sk_negative_common(1)
+        movzbl  (%rax), %eax
+        ret
+
+bpf_slow_path_byte_msh_neg:
+        cmp     SKF_MAX_NEG_OFF, %esi
+        jl      bpf_error
+sk_load_byte_msh_negative_offset:
+        .globl  sk_load_byte_msh_negative_offset
+        xchg    %eax,%ebx /* dont lose A , X is about to be scratched */
+        sk_negative_common(1)
+        movzbl  (%rax),%eax
+        and     $15,%al
+        shl     $2,%al
+        xchg    %eax,%ebx
+        ret
+
+bpf_error:
+# force a return 0 from jit handler
+        xor             %eax,%eax
+        mov             -8(%rbp),%rbx
+        leaveq
+        ret
diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c
index 5671752f8d9c..0597f95b6da6 100644
--- a/arch/x86/net/bpf_jit_comp.c
+++ b/arch/x86/net/bpf_jit_comp.c
@@ -30,7 +30,10 @@ int bpf_jit_enable __read_mostly;
  * assembly code in arch/x86/net/bpf_jit.S
  */
 extern u8 sk_load_word[], sk_load_half[], sk_load_byte[], sk_load_byte_msh[];
-extern u8 sk_load_word_ind[], sk_load_half_ind[], sk_load_byte_ind[];
+extern u8 sk_load_word_positive_offset[], sk_load_half_positive_offset[];
+extern u8 sk_load_byte_positive_offset[], sk_load_byte_msh_positive_offset[];
+extern u8 sk_load_word_negative_offset[], sk_load_half_negative_offset[];
+extern u8 sk_load_byte_negative_offset[], sk_load_byte_msh_negative_offset[];
 
 static inline u8 *emit_code(u8 *ptr, u32 bytes, unsigned int len)
 {
@@ -117,6 +120,8 @@ static inline void bpf_flush_icache(void *start, void *end)
         set_fs(old_fs);
 }
 
+#define CHOOSE_LOAD_FUNC(K, func) \
+        ((int)K < 0 ? ((int)K >= SKF_LL_OFF ? func##_negative_offset : func) : func##_positive_offset)
 
 void bpf_jit_compile(struct sk_filter *fp)
 {
@@ -289,7 +294,7 @@ void bpf_jit_compile(struct sk_filter *fp)
                                         EMIT2(0x24, K & 0xFF); /* and imm8,%al */
                                 } else if (K >= 0xFFFF0000) {
                                         EMIT2(0x66, 0x25);      /* and imm16,%ax */
-                                        EMIT2(K, 2);
+                                        EMIT(K, 2);
                                 } else {
                                         EMIT1_off32(0x25, K);   /* and imm32,%eax */
                                 }
@@ -473,44 +478,46 @@ void bpf_jit_compile(struct sk_filter *fp)
 #endif
                                 break;
                         case BPF_S_LD_W_ABS:
-                                func = sk_load_word;
+                                func = CHOOSE_LOAD_FUNC(K, sk_load_word);
 common_load:                    seen |= SEEN_DATAREF;
-                                if ((int)K < 0) {
-                                        /* Abort the JIT because __load_pointer() is needed. */
-                                        goto out;
-                                }
                                 t_offset = func - (image + addrs[i]);
                                 EMIT1_off32(0xbe, K); /* mov imm32,%esi */
                                 EMIT1_off32(0xe8, t_offset); /* call */
                                 break;
                         case BPF_S_LD_H_ABS:
-                                func = sk_load_half;
+                                func = CHOOSE_LOAD_FUNC(K, sk_load_half);
                                 goto common_load;
                         case BPF_S_LD_B_ABS:
-                                func = sk_load_byte;
+                                func = CHOOSE_LOAD_FUNC(K, sk_load_byte);
                                 goto common_load;
                         case BPF_S_LDX_B_MSH:
-                                if ((int)K < 0) {
-                                        /* Abort the JIT because __load_pointer() is needed. */
-                                        goto out;
-                                }
+                                func = CHOOSE_LOAD_FUNC(K, sk_load_byte_msh);
                                 seen |= SEEN_DATAREF | SEEN_XREG;
-                                t_offset = sk_load_byte_msh - (image + addrs[i]);
+                                t_offset = func - (image + addrs[i]);
                                 EMIT1_off32(0xbe, K);   /* mov imm32,%esi */
                                 EMIT1_off32(0xe8, t_offset); /* call sk_load_byte_msh */
                                 break;
                         case BPF_S_LD_W_IND:
-                                func = sk_load_word_ind;
+                                func = sk_load_word;
 common_load_ind:                seen |= SEEN_DATAREF | SEEN_XREG;
                                 t_offset = func - (image + addrs[i]);
-                                EMIT1_off32(0xbe, K);   /* mov imm32,%esi   */
+                                if (K) {
+                                        if (is_imm8(K)) {
+                                                EMIT3(0x8d, 0x73, K); /* lea imm8(%rbx), %esi */
+                                        } else {
+                                                EMIT2(0x8d, 0xb3); /* lea imm32(%rbx),%esi */
+                                                EMIT(K, 4);
+                                        }
+                                } else {
+                                        EMIT2(0x89,0xde); /* mov %ebx,%esi */
+                                }
                                 EMIT1_off32(0xe8, t_offset);    /* call sk_load_xxx_ind */
                                 break;
                         case BPF_S_LD_H_IND:
-                                func = sk_load_half_ind;
+                                func = sk_load_half;
                                 goto common_load_ind;
                         case BPF_S_LD_B_IND:
-                                func = sk_load_byte_ind;
+                                func = sk_load_byte;
                                 goto common_load_ind;
                         case BPF_S_JMP_JA:
                                 t_offset = addrs[i + K] - addrs[i];
diff --git a/arch/x86/platform/geode/net5501.c b/arch/x86/platform/geode/net5501.c
index 66d377e334f7..646e3b5b4bb6 100644
--- a/arch/x86/platform/geode/net5501.c
+++ b/arch/x86/platform/geode/net5501.c
@@ -63,7 +63,7 @@ static struct gpio_led net5501_leds[] = {
                 .name = "net5501:1",
                 .gpio = 6,
                 .default_trigger = "default-on",
-                .active_low = 1,
+                .active_low = 0,
         },
 };
 
diff --git a/arch/x86/platform/mrst/mrst.c b/arch/x86/platform/mrst/mrst.c
index e0a37233c0af..e31bcd8f2eee 100644
--- a/arch/x86/platform/mrst/mrst.c
+++ b/arch/x86/platform/mrst/mrst.c
@@ -805,7 +805,7 @@ void intel_scu_devices_create(void)
                 } else
                         i2c_register_board_info(i2c_bus[i], i2c_devs[i], 1);
         }
-        intel_scu_notifier_post(SCU_AVAILABLE, 0L);
+        intel_scu_notifier_post(SCU_AVAILABLE, NULL);
 }
 EXPORT_SYMBOL_GPL(intel_scu_devices_create);
 
@@ -814,7 +814,7 @@ void intel_scu_devices_destroy(void)
 {
         int i;
 
-        intel_scu_notifier_post(SCU_DOWN, 0L);
+        intel_scu_notifier_post(SCU_DOWN, NULL);
 
         for (i = 0; i < ipc_next_dev; i++)
                 platform_device_del(ipc_devs[i]);
diff --git a/arch/x86/power/cpu.c b/arch/x86/power/cpu.c
index 47936830968c..218cdb16163c 100644
--- a/arch/x86/power/cpu.c
+++ b/arch/x86/power/cpu.c
@@ -225,13 +225,13 @@ static void __restore_processor_state(struct saved_context *ctxt)
         fix_processor_context();
 
         do_fpu_end();
+        x86_platform.restore_sched_clock_state();
         mtrr_bp_restore();
 }
 
 /* Needed by apm.c */
 void restore_processor_state(void)
 {
-        x86_platform.restore_sched_clock_state();
         __restore_processor_state(&saved_context);
 }
 #ifdef CONFIG_X86_32
diff --git a/arch/x86/um/asm/barrier.h b/arch/x86/um/asm/barrier.h
new file mode 100644
index 000000000000..7d01b8c56c00
--- /dev/null
+++ b/arch/x86/um/asm/barrier.h
@@ -0,0 +1,75 @@
+#ifndef _ASM_UM_BARRIER_H_
+#define _ASM_UM_BARRIER_H_
+
+#include <asm/asm.h>
+#include <asm/segment.h>
+#include <asm/cpufeature.h>
+#include <asm/cmpxchg.h>
+#include <asm/nops.h>
+
+#include <linux/kernel.h>
+#include <linux/irqflags.h>
+
+/*
+ * Force strict CPU ordering.
+ * And yes, this is required on UP too when we're talking
+ * to devices.
+ */
+#ifdef CONFIG_X86_32
+
+#define mb()    alternative("lock; addl $0,0(%%esp)", "mfence", X86_FEATURE_XMM2)
+#define rmb()   alternative("lock; addl $0,0(%%esp)", "lfence", X86_FEATURE_XMM2)
+#define wmb()   alternative("lock; addl $0,0(%%esp)", "sfence", X86_FEATURE_XMM)
+
+#else /* CONFIG_X86_32 */
+
+#define mb()    asm volatile("mfence" : : : "memory")
+#define rmb()   asm volatile("lfence" : : : "memory")
+#define wmb()   asm volatile("sfence" : : : "memory")
+
+#endif /* CONFIG_X86_32 */
+
+#define read_barrier_depends()  do { } while (0)
+
+#ifdef CONFIG_SMP
+
+#define smp_mb()        mb()
+#ifdef CONFIG_X86_PPRO_FENCE
+#define smp_rmb()       rmb()
+#else /* CONFIG_X86_PPRO_FENCE */
+#define smp_rmb()       barrier()
+#endif /* CONFIG_X86_PPRO_FENCE */
+
+#ifdef CONFIG_X86_OOSTORE
+#define smp_wmb()       wmb()
+#else /* CONFIG_X86_OOSTORE */
+#define smp_wmb()       barrier()
+#endif /* CONFIG_X86_OOSTORE */
+
+#define smp_read_barrier_depends()      read_barrier_depends()
+#define set_mb(var, value) do { (void)xchg(&var, value); } while (0)
+
+#else /* CONFIG_SMP */
+
+#define smp_mb()        barrier()
+#define smp_rmb()       barrier()
+#define smp_wmb()       barrier()
+#define smp_read_barrier_depends()      do { } while (0)
+#define set_mb(var, value) do { var = value; barrier(); } while (0)
+
+#endif /* CONFIG_SMP */
+
+/*
+ * Stop RDTSC speculation. This is needed when you need to use RDTSC
+ * (or get_cycles or vread that possibly accesses the TSC) in a defined
+ * code region.
+ *
+ * (Could use an alternative three way for this if there was one.)
+ */
+static inline void rdtsc_barrier(void)
+{
+        alternative(ASM_NOP3, "mfence", X86_FEATURE_MFENCE_RDTSC);
+        alternative(ASM_NOP3, "lfence", X86_FEATURE_LFENCE_RDTSC);
+}
+
+#endif
diff --git a/arch/x86/um/asm/system.h b/arch/x86/um/asm/system.h
deleted file mode 100644
index a459fd9b7598..000000000000
--- a/arch/x86/um/asm/system.h
+++ /dev/null
@@ -1,135 +0,0 @@
-#ifndef _ASM_X86_SYSTEM_H_
-#define _ASM_X86_SYSTEM_H_
-
-#include <asm/asm.h>
-#include <asm/segment.h>
-#include <asm/cpufeature.h>
-#include <asm/cmpxchg.h>
-#include <asm/nops.h>
-
-#include <linux/kernel.h>
-#include <linux/irqflags.h>
-
-/* entries in ARCH_DLINFO: */
-#ifdef CONFIG_IA32_EMULATION
-# define AT_VECTOR_SIZE_ARCH 2
-#else
-# define AT_VECTOR_SIZE_ARCH 1
-#endif
-
-extern unsigned long arch_align_stack(unsigned long sp);
-
-void default_idle(void);
-
-/*
- * Force strict CPU ordering.
- * And yes, this is required on UP too when we're talking
- * to devices.
- */
-#ifdef CONFIG_X86_32
-/*
- * Some non-Intel clones support out of order store. wmb() ceases to be a
- * nop for these.
- */
-#define mb() alternative("lock; addl $0,0(%%esp)", "mfence", X86_FEATURE_XMM2)
-#define rmb() alternative("lock; addl $0,0(%%esp)", "lfence", X86_FEATURE_XMM2)
-#define wmb() alternative("lock; addl $0,0(%%esp)", "sfence", X86_FEATURE_XMM)
-#else
-#define mb()    asm volatile("mfence":::"memory")
-#define rmb()   asm volatile("lfence":::"memory")
-#define wmb()   asm volatile("sfence" ::: "memory")
-#endif
-
-/**
- * read_barrier_depends - Flush all pending reads that subsequents reads
- * depend on.
- *
- * No data-dependent reads from memory-like regions are ever reordered
- * over this barrier.  All reads preceding this primitive are guaranteed
- * to access memory (but not necessarily other CPUs' caches) before any
- * reads following this primitive that depend on the data return by
- * any of the preceding reads.  This primitive is much lighter weight than
- * rmb() on most CPUs, and is never heavier weight than is
- * rmb().
- *
- * These ordering constraints are respected by both the local CPU
- * and the compiler.
- *
- * Ordering is not guaranteed by anything other than these primitives,
- * not even by data dependencies.  See the documentation for
- * memory_barrier() for examples and URLs to more information.
- *
- * For example, the following code would force ordering (the initial
- * value of "a" is zero, "b" is one, and "p" is "&a"):
- *
- * <programlisting>
- *      CPU 0                           CPU 1
- *
- *      b = 2;
- *      memory_barrier();
- *      p = &b;                         q = p;
- *                                      read_barrier_depends();
- *                                      d = *q;
- * </programlisting>
- *
- * because the read of "*q" depends on the read of "p" and these
- * two reads are separated by a read_barrier_depends().  However,
- * the following code, with the same initial values for "a" and "b":
- *
- * <programlisting>
- *      CPU 0                           CPU 1
- *
- *      a = 2;
- *      memory_barrier();
- *      b = 3;                          y = b;
- *                                      read_barrier_depends();
- *                                      x = a;
- * </programlisting>
- *
- * does not enforce ordering, since there is no data dependency between
- * the read of "a" and the read of "b".  Therefore, on some CPUs, such
- * as Alpha, "y" could be set to 3 and "x" to 0.  Use rmb()
- * in cases like this where there are no data dependencies.
- **/
-
-#define read_barrier_depends()  do { } while (0)
-
-#ifdef CONFIG_SMP
-#define smp_mb()        mb()
-#ifdef CONFIG_X86_PPRO_FENCE
-# define smp_rmb()      rmb()
-#else
-# define smp_rmb()      barrier()
-#endif
-#ifdef CONFIG_X86_OOSTORE
-# define smp_wmb()      wmb()
-#else
-# define smp_wmb()      barrier()
-#endif
-#define smp_read_barrier_depends()      read_barrier_depends()
-#define set_mb(var, value) do { (void)xchg(&var, value); } while (0)
-#else
-#define smp_mb()        barrier()
-#define smp_rmb()       barrier()
-#define smp_wmb()       barrier()
-#define smp_read_barrier_depends()      do { } while (0)
-#define set_mb(var, value) do { var = value; barrier(); } while (0)
-#endif
-
-/*
- * Stop RDTSC speculation. This is needed when you need to use RDTSC
- * (or get_cycles or vread that possibly accesses the TSC) in a defined
- * code region.
- *
- * (Could use an alternative three way for this if there was one.)
- */
-static inline void rdtsc_barrier(void)
-{
-        alternative(ASM_NOP3, "mfence", X86_FEATURE_MFENCE_RDTSC);
-        alternative(ASM_NOP3, "lfence", X86_FEATURE_LFENCE_RDTSC);
-}
-
-extern void *_switch_to(void *prev, void *next, void *last);
-#define switch_to(prev, next, last) prev = _switch_to(prev, next, last)
-
-#endif
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index b132ade26f77..95dccce8e979 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -63,6 +63,7 @@
 #include <asm/stackprotector.h>
 #include <asm/hypervisor.h>
 #include <asm/mwait.h>
+#include <asm/pci_x86.h>
 
 #ifdef CONFIG_ACPI
 #include <linux/acpi.h>
@@ -261,7 +262,8 @@ static void xen_cpuid(unsigned int *ax, unsigned int *bx,
 
 static bool __init xen_check_mwait(void)
 {
-#ifdef CONFIG_ACPI
+#if defined(CONFIG_ACPI) && !defined(CONFIG_ACPI_PROCESSOR_AGGREGATOR) && \
+        !defined(CONFIG_ACPI_PROCESSOR_AGGREGATOR_MODULE)
         struct xen_platform_op op = {
                 .cmd                    = XENPF_set_processor_pminfo,
                 .u.set_pminfo.id        = -1,
@@ -349,7 +351,6 @@ static void __init xen_init_cpuid_mask(void)
         /* Xen will set CR4.OSXSAVE if supported and not disabled by force */
         if ((cx & xsave_mask) != xsave_mask)
                 cpuid_leaf1_ecx_mask &= ~xsave_mask; /* disable XSAVE & OSXSAVE */
-
         if (xen_check_mwait())
                 cpuid_leaf1_ecx_set_mask = (1 << (X86_FEATURE_MWAIT % 32));
 }
@@ -809,9 +810,40 @@ static void xen_io_delay(void)
 }
 
 #ifdef CONFIG_X86_LOCAL_APIC
+static unsigned long xen_set_apic_id(unsigned int x)
+{
+        WARN_ON(1);
+        return x;
+}
+static unsigned int xen_get_apic_id(unsigned long x)
+{
+        return ((x)>>24) & 0xFFu;
+}
 static u32 xen_apic_read(u32 reg)
 {
-        return 0;
+        struct xen_platform_op op = {
+                .cmd = XENPF_get_cpuinfo,
+                .interface_version = XENPF_INTERFACE_VERSION,
+                .u.pcpu_info.xen_cpuid = 0,
+        };
+        int ret = 0;
+
+        /* Shouldn't need this as APIC is turned off for PV, and we only
+         * get called on the bootup processor. But just in case. */
+        if (!xen_initial_domain() || smp_processor_id())
+                return 0;
+
+        if (reg == APIC_LVR)
+                return 0x10;
+
+        if (reg != APIC_ID)
+                return 0;
+
+        ret = HYPERVISOR_dom0_op(&op);
+        if (ret)
+                return 0;
+
+        return op.u.pcpu_info.apic_id << 24;
 }
 
 static void xen_apic_write(u32 reg, u32 val)
@@ -849,6 +881,8 @@ static void set_xen_basic_apic_ops(void)
         apic->icr_write = xen_apic_icr_write;
         apic->wait_icr_idle = xen_apic_wait_icr_idle;
         apic->safe_wait_icr_idle = xen_safe_apic_wait_icr_idle;
+        apic->set_apic_id = xen_set_apic_id;
+        apic->get_apic_id = xen_get_apic_id;
 }
 
 #endif
@@ -967,7 +1001,7 @@ void xen_setup_shared_info(void)
         xen_setup_mfn_list_list();
 }
 
-/* This is called once we have the cpu_possible_map */
+/* This is called once we have the cpu_possible_mask */
 void xen_setup_vcpu_info_placement(void)
 {
         int cpu;
@@ -1365,8 +1399,10 @@ asmlinkage void __init xen_start_kernel(void)
                 /* Make sure ACS will be enabled */
                 pci_request_acs();
         }
-                
-
+#ifdef CONFIG_PCI
+        /* PCI BIOS service won't work from a PV guest. */
+        pci_probe &= ~PCI_PROBE_BIOS;
+#endif
         xen_raw_console_write("about to get started...\n");
 
         xen_setup_runstate_info(0);
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 988828b479ed..69f5857660ac 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -353,8 +353,13 @@ static pteval_t pte_mfn_to_pfn(pteval_t val)
 {
         if (val & _PAGE_PRESENT) {
                 unsigned long mfn = (val & PTE_PFN_MASK) >> PAGE_SHIFT;
+                unsigned long pfn = mfn_to_pfn(mfn);
+
                 pteval_t flags = val & PTE_FLAGS_MASK;
-                val = ((pteval_t)mfn_to_pfn(mfn) << PAGE_SHIFT) | flags;
+                if (unlikely(pfn == ~0))
+                        val = flags & ~_PAGE_PRESENT;
+                else
+                        val = ((pteval_t)pfn << PAGE_SHIFT) | flags;
         }
 
         return val;
@@ -1859,6 +1864,7 @@ pgd_t * __init xen_setup_kernel_pagetable(pgd_t *pgd,
 #endif  /* CONFIG_X86_64 */
 
 static unsigned char dummy_mapping[PAGE_SIZE] __page_aligned_bss;
+static unsigned char fake_ioapic_mapping[PAGE_SIZE] __page_aligned_bss;
 
 static void xen_set_fixmap(unsigned idx, phys_addr_t phys, pgprot_t prot)
 {
@@ -1899,7 +1905,7 @@ static void xen_set_fixmap(unsigned idx, phys_addr_t phys, pgprot_t prot)
                  * We just don't map the IO APIC - all access is via
                  * hypercalls.  Keep the address in the pte for reference.
                  */
-                pte = pfn_pte(PFN_DOWN(__pa(dummy_mapping)), PAGE_KERNEL);
+                pte = pfn_pte(PFN_DOWN(__pa(fake_ioapic_mapping)), PAGE_KERNEL);
                 break;
 #endif
 
@@ -2064,6 +2070,7 @@ void __init xen_init_mmu_ops(void)
         pv_mmu_ops = xen_mmu_ops;
 
         memset(dummy_mapping, 0xff, PAGE_SIZE);
+        memset(fake_ioapic_mapping, 0xfd, PAGE_SIZE);
 }
 
 /* Protected by xen_reservation_lock. */
diff --git a/arch/x86/xen/pci-swiotlb-xen.c b/arch/x86/xen/pci-swiotlb-xen.c
index b480d4207a4c..967633ad98c4 100644
--- a/arch/x86/xen/pci-swiotlb-xen.c
+++ b/arch/x86/xen/pci-swiotlb-xen.c
@@ -12,8 +12,8 @@ int xen_swiotlb __read_mostly;
 
 static struct dma_map_ops xen_swiotlb_dma_ops = {
         .mapping_error = xen_swiotlb_dma_mapping_error,
-        .alloc_coherent = xen_swiotlb_alloc_coherent,
-        .free_coherent = xen_swiotlb_free_coherent,
+        .alloc = xen_swiotlb_alloc_coherent,
+        .free = xen_swiotlb_free_coherent,
         .sync_single_for_cpu = xen_swiotlb_sync_single_for_cpu,
         .sync_single_for_device = xen_swiotlb_sync_single_for_device,
         .sync_sg_for_cpu = xen_swiotlb_sync_sg_for_cpu,
diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index 02900e8ce26c..0503c0c493a9 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -59,7 +59,7 @@ static irqreturn_t xen_reschedule_interrupt(int irq, void *dev_id)
 
 static void __cpuinit cpu_bringup(void)
 {
-        int cpu = smp_processor_id();
+        int cpu;
 
         cpu_init();
         touch_softlockup_watchdog();
@@ -178,6 +178,7 @@ static void __init xen_fill_possible_map(void)
 static void __init xen_filter_cpu_maps(void)
 {
         int i, rc;
+        unsigned int subtract = 0;
 
         if (!xen_initial_domain())
                 return;
@@ -192,8 +193,22 @@ static void __init xen_filter_cpu_maps(void)
                 } else {
                         set_cpu_possible(i, false);
                         set_cpu_present(i, false);
+                        subtract++;
                 }
         }
+#ifdef CONFIG_HOTPLUG_CPU
+        /* This is akin to using 'nr_cpus' on the Linux command line.
+         * Which is OK as when we use 'dom0_max_vcpus=X' we can only
+         * have up to X, while nr_cpu_ids is greater than X. This
+         * normally is not a problem, except when CPU hotplugging
+         * is involved and then there might be more than X CPUs
+         * in the guest - which will not work as there is no
+         * hypercall to expand the max number of VCPUs an already
+         * running guest has. So cap it up to X. */
+        if (subtract)
+                nr_cpu_ids = nr_cpu_ids - subtract;
+#endif
+
 }
 
 static void __init xen_smp_prepare_boot_cpu(void)
diff --git a/arch/x86/xen/xen-asm.S b/arch/x86/xen/xen-asm.S
index 79d7362ad6d1..3e45aa000718 100644
--- a/arch/x86/xen/xen-asm.S
+++ b/arch/x86/xen/xen-asm.S
@@ -96,7 +96,7 @@ ENTRY(xen_restore_fl_direct)
 
         /* check for unmasked and pending */
         cmpw $0x0001, PER_CPU_VAR(xen_vcpu_info) + XEN_vcpu_info_pending
-        jz 1f
+        jnz 1f
 2:      call check_events
 1:
 ENDPATCH(xen_restore_fl_direct)
diff --git a/arch/xtensa/include/asm/hardirq.h b/arch/xtensa/include/asm/hardirq.h
index 26664cef8f11..91695a135498 100644
--- a/arch/xtensa/include/asm/hardirq.h
+++ b/arch/xtensa/include/asm/hardirq.h
@@ -11,9 +11,6 @@
 #ifndef _XTENSA_HARDIRQ_H
 #define _XTENSA_HARDIRQ_H
 
-void ack_bad_irq(unsigned int irq);
-#define ack_bad_irq ack_bad_irq
-
 #include <asm-generic/hardirq.h>
 
 #endif  /* _XTENSA_HARDIRQ_H */
diff --git a/arch/xtensa/include/asm/io.h b/arch/xtensa/include/asm/io.h
index d04cd3a625fa..4beb43c087d3 100644
--- a/arch/xtensa/include/asm/io.h
+++ b/arch/xtensa/include/asm/io.h
@@ -14,6 +14,7 @@
 #ifdef __KERNEL__
 #include <asm/byteorder.h>
 #include <asm/page.h>
+#include <linux/bug.h>
 #include <linux/kernel.h>
 
 #include <linux/types.h>
diff --git a/arch/xtensa/kernel/signal.c b/arch/xtensa/kernel/signal.c
index b69b000349fc..d78869a00b11 100644
--- a/arch/xtensa/kernel/signal.c
+++ b/arch/xtensa/kernel/signal.c
@@ -496,6 +496,7 @@ int do_signal(struct pt_regs *regs, sigset_t *oldset)
         signr = get_signal_to_deliver(&info, &ka, regs, NULL);
 
         if (signr > 0) {
+                int ret;
 
                 /* Are we from a system call? */