Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblaze

* 'next' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: Wire-up new system calls
  microblaze: Remove NO_IRQ from architecture
  input: xilinx_ps2: Don't use NO_IRQ
  block: xsysace: Don't use NO_IRQ
  microblaze: Trivial asm fix
  microblaze: Fix debug message in module
  microblaze: Remove eprintk macro
  microblaze: Send CR before LF for early console
  microblaze: Change NO_IRQ to 0
  microblaze: Use irq_of_parse_and_map for timer
  microblaze: intc: Change variable name
  microblaze: Use of_find_compatible_node for timer and intc
  microblaze: Add __cmpdi2
  microblaze: Synchronize __pa __va macros

15 files changed, 93 insertions, 84 deletions

diff --git a/arch/microblaze/include/asm/irq.h b/arch/microblaze/include/asm/irq.h
index cc54187f3d38..a175132e4496 100644
--- a/arch/microblaze/include/asm/irq.h
+++ b/arch/microblaze/include/asm/irq.h
@@ -9,7 +9,14 @@
 #ifndef _ASM_MICROBLAZE_IRQ_H
 #define _ASM_MICROBLAZE_IRQ_H
 
-#define NR_IRQS 32
+
+/*
+ * Linux IRQ# is currently offset by one to map to the hardware
+ * irq number. So hardware IRQ0 maps to Linux irq 1.
+ */
+#define NO_IRQ_OFFSET   1
+#define IRQ_OFFSET      NO_IRQ_OFFSET
+#define NR_IRQS         (32 + IRQ_OFFSET)
 #include <asm-generic/irq.h>
 
 /* This type is the placeholder for a hardware interrupt number. It has to
@@ -20,8 +27,6 @@ typedef unsigned long irq_hw_number_t;
 
 extern unsigned int nr_irq;
 
-#define NO_IRQ (-1)
-
 struct pt_regs;
 extern void do_IRQ(struct pt_regs *regs);
 
diff --git a/arch/microblaze/include/asm/page.h b/arch/microblaze/include/asm/page.h
index ed9d0f6e2cdb..a25e6b5e2ad4 100644
--- a/arch/microblaze/include/asm/page.h
+++ b/arch/microblaze/include/asm/page.h
@@ -174,15 +174,8 @@ extern int page_is_ram(unsigned long pfn);
 
 #define virt_addr_valid(vaddr)  (pfn_valid(virt_to_pfn(vaddr)))
 
-
-#  ifndef CONFIG_MMU
-#  define __pa(vaddr)   ((unsigned long) (vaddr))
-#  define __va(paddr)   ((void *) (paddr))
-#  else /* CONFIG_MMU */
-#  define __pa(x)       __virt_to_phys((unsigned long)(x))
-#  define __va(x)       ((void *)__phys_to_virt((unsigned long)(x)))
-#  endif /* CONFIG_MMU */
-
+# define __pa(x)        __virt_to_phys((unsigned long)(x))
+# define __va(x)        ((void *)__phys_to_virt((unsigned long)(x)))
 
 /* Convert between virtual and physical address for MMU. */
 /* Handle MicroBlaze processor with virtual memory. */
diff --git a/arch/microblaze/include/asm/setup.h b/arch/microblaze/include/asm/setup.h
index 904e5ef6a11b..6c72ed7eba98 100644
--- a/arch/microblaze/include/asm/setup.h
+++ b/arch/microblaze/include/asm/setup.h
@@ -26,12 +26,6 @@ int setup_early_printk(char *opt);
 void remap_early_printk(void);
 void disable_early_printk(void);
 
-#if defined(CONFIG_EARLY_PRINTK)
-#define eprintk early_printk
-#else
-#define eprintk printk
-#endif
-
 void heartbeat(void);
 void setup_heartbeat(void);
 
diff --git a/arch/microblaze/include/asm/unistd.h b/arch/microblaze/include/asm/unistd.h
index 7d7092b917ac..d20ffbc86beb 100644
--- a/arch/microblaze/include/asm/unistd.h
+++ b/arch/microblaze/include/asm/unistd.h
@@ -391,8 +391,11 @@
 #define __NR_clock_adjtime      373
 #define __NR_syncfs             374
 #define __NR_setns              375
+#define __NR_sendmmsg           376
+#define __NR_process_vm_readv   377
+#define __NR_process_vm_writev  378
 
-#define __NR_syscalls           376
+#define __NR_syscalls           379
 
 #ifdef __KERNEL__
 #ifndef __ASSEMBLY__
diff --git a/arch/microblaze/kernel/early_printk.c b/arch/microblaze/kernel/early_printk.c
index d26d92d47754..8356e47631c4 100644
--- a/arch/microblaze/kernel/early_printk.c
+++ b/arch/microblaze/kernel/early_printk.c
@@ -50,9 +50,9 @@ static void early_printk_uartlite_write(struct console *unused,
                                         const char *s, unsigned n)
 {
         while (*s && n-- > 0) {
-                early_printk_uartlite_putc(*s);
                 if (*s == '\n')
                         early_printk_uartlite_putc('\r');
+                early_printk_uartlite_putc(*s);
                 s++;
         }
 }
@@ -94,9 +94,9 @@ static void early_printk_uart16550_write(struct console *unused,
                                         const char *s, unsigned n)
 {
         while (*s && n-- > 0) {
-                early_printk_uart16550_putc(*s);
                 if (*s == '\n')
                         early_printk_uart16550_putc('\r');
+                early_printk_uart16550_putc(*s);
                 s++;
         }
 }
diff --git a/arch/microblaze/kernel/entry.S b/arch/microblaze/kernel/entry.S
index ca15bc5c7449..66e34a3bfe1b 100644
--- a/arch/microblaze/kernel/entry.S
+++ b/arch/microblaze/kernel/entry.S
@@ -468,7 +468,7 @@ C_ENTRY(sys_fork_wrapper):
         addi    r5, r0, SIGCHLD                 /* Arg 0: flags */
         lwi     r6, r1, PT_R1   /* Arg 1: child SP (use parent's) */
         addik   r7, r1, 0                       /* Arg 2: parent context */
-        add     r8. r0, r0                      /* Arg 3: (unused) */
+        add     r8, r0, r0                      /* Arg 3: (unused) */
         add     r9, r0, r0;                     /* Arg 4: (unused) */
         brid    do_fork         /* Do real work (tail-call) */
         add     r10, r0, r0;                    /* Arg 5: (unused) */
diff --git a/arch/microblaze/kernel/intc.c b/arch/microblaze/kernel/intc.c
index eb41441c7fd0..44b177e2ab12 100644
--- a/arch/microblaze/kernel/intc.c
+++ b/arch/microblaze/kernel/intc.c
@@ -42,8 +42,9 @@ unsigned int nr_irq;
 
 static void intc_enable_or_unmask(struct irq_data *d)
 {
-        unsigned long mask = 1 << d->irq;
-        pr_debug("enable_or_unmask: %d\n", d->irq);
+        unsigned long mask = 1 << d->hwirq;
+
+        pr_debug("enable_or_unmask: %ld\n", d->hwirq);
         out_be32(INTC_BASE + SIE, mask);
 
         /* ack level irqs because they can't be acked during
@@ -56,20 +57,21 @@ static void intc_enable_or_unmask(struct irq_data *d)
 
 static void intc_disable_or_mask(struct irq_data *d)
 {
-        pr_debug("disable: %d\n", d->irq);
-        out_be32(INTC_BASE + CIE, 1 << d->irq);
+        pr_debug("disable: %ld\n", d->hwirq);
+        out_be32(INTC_BASE + CIE, 1 << d->hwirq);
 }
 
 static void intc_ack(struct irq_data *d)
 {
-        pr_debug("ack: %d\n", d->irq);
-        out_be32(INTC_BASE + IAR, 1 << d->irq);
+        pr_debug("ack: %ld\n", d->hwirq);
+        out_be32(INTC_BASE + IAR, 1 << d->hwirq);
 }
 
 static void intc_mask_ack(struct irq_data *d)
 {
-        unsigned long mask = 1 << d->irq;
-        pr_debug("disable_and_ack: %d\n", d->irq);
+        unsigned long mask = 1 << d->hwirq;
+
+        pr_debug("disable_and_ack: %ld\n", d->hwirq);
         out_be32(INTC_BASE + CIE, mask);
         out_be32(INTC_BASE + IAR, mask);
 }
@@ -91,7 +93,7 @@ unsigned int get_irq(struct pt_regs *regs)
          * order to handle multiple interrupt controllers. It currently
          * is hardcoded to check for interrupts only on the first INTC.
          */
-        irq = in_be32(INTC_BASE + IVR);
+        irq = in_be32(INTC_BASE + IVR) + NO_IRQ_OFFSET;
         pr_debug("get_irq: %d\n", irq);
 
         return irq;
@@ -99,7 +101,7 @@ unsigned int get_irq(struct pt_regs *regs)
 
 void __init init_IRQ(void)
 {
-        u32 i, j, intr_type;
+        u32 i, intr_mask;
         struct device_node *intc = NULL;
 #ifdef CONFIG_SELFMOD_INTC
         unsigned int intc_baseaddr = 0;
@@ -113,35 +115,24 @@ void __init init_IRQ(void)
                                 0
                         };
 #endif
-        const char * const intc_list[] = {
-                                "xlnx,xps-intc-1.00.a",
-                                NULL
-                        };
-
-        for (j = 0; intc_list[j] != NULL; j++) {
-                intc = of_find_compatible_node(NULL, NULL, intc_list[j]);
-                if (intc)
-                        break;
-        }
+        intc = of_find_compatible_node(NULL, NULL, "xlnx,xps-intc-1.00.a");
         BUG_ON(!intc);
 
-        intc_baseaddr = be32_to_cpup(of_get_property(intc,
-                                                                "reg", NULL));
+        intc_baseaddr = be32_to_cpup(of_get_property(intc, "reg", NULL));
         intc_baseaddr = (unsigned long) ioremap(intc_baseaddr, PAGE_SIZE);
         nr_irq = be32_to_cpup(of_get_property(intc,
                                                 "xlnx,num-intr-inputs", NULL));
 
-        intr_type =
-                be32_to_cpup(of_get_property(intc,
-                                                "xlnx,kind-of-intr", NULL));
-        if (intr_type > (u32)((1ULL << nr_irq) - 1))
+        intr_mask =
+                be32_to_cpup(of_get_property(intc, "xlnx,kind-of-intr", NULL));
+        if (intr_mask > (u32)((1ULL << nr_irq) - 1))
                 printk(KERN_INFO " ERROR: Mismatch in kind-of-intr param\n");
 
 #ifdef CONFIG_SELFMOD_INTC
         selfmod_function((int *) arr_func, intc_baseaddr);
 #endif
-        printk(KERN_INFO "%s #0 at 0x%08x, num_irq=%d, edge=0x%x\n",
-                intc_list[j], intc_baseaddr, nr_irq, intr_type);
+        printk(KERN_INFO "XPS intc #0 at 0x%08x, num_irq=%d, edge=0x%x\n",
+                intc_baseaddr, nr_irq, intr_mask);
 
         /*
          * Disable all external interrupts until they are
@@ -155,8 +146,8 @@ void __init init_IRQ(void)
         /* Turn on the Master Enable. */
         out_be32(intc_baseaddr + MER, MER_HIE | MER_ME);
 
-        for (i = 0; i < nr_irq; ++i) {
-                if (intr_type & (0x00000001 << i)) {
+        for (i = IRQ_OFFSET; i < (nr_irq + IRQ_OFFSET); ++i) {
+                if (intr_mask & (0x00000001 << (i - IRQ_OFFSET))) {
                         irq_set_chip_and_handler_name(i, &intc_dev,
                                 handle_edge_irq, "edge");
                         irq_clear_status_flags(i, IRQ_LEVEL);
@@ -165,5 +156,6 @@ void __init init_IRQ(void)
                                 handle_level_irq, "level");
                         irq_set_status_flags(i, IRQ_LEVEL);
                 }
+                irq_get_irq_data(i)->hwirq = i - IRQ_OFFSET;
         }
 }
diff --git a/arch/microblaze/kernel/irq.c b/arch/microblaze/kernel/irq.c
index e5d63a89b9b2..bbebcae72c02 100644
--- a/arch/microblaze/kernel/irq.c
+++ b/arch/microblaze/kernel/irq.c
@@ -33,11 +33,12 @@ void __irq_entry do_IRQ(struct pt_regs *regs)
         irq_enter();
         irq = get_irq(regs);
 next_irq:
-        BUG_ON(irq == -1U);
-        generic_handle_irq(irq);
+        BUG_ON(!irq);
+        /* Substract 1 because of get_irq */
+        generic_handle_irq(irq + IRQ_OFFSET - NO_IRQ_OFFSET);
 
         irq = get_irq(regs);
-        if (irq != -1U) {
+        if (irq) {
                 pr_debug("next irq: %d\n", irq);
                 ++concurrent_irq;
                 goto next_irq;
@@ -52,13 +53,13 @@ next_irq:
   intc without any cascades or any connection that's why mapping is 1:1 */
 unsigned int irq_create_mapping(struct irq_host *host, irq_hw_number_t hwirq)
 {
-        return hwirq;
+        return hwirq + IRQ_OFFSET;
 }
 EXPORT_SYMBOL_GPL(irq_create_mapping);
 
 unsigned int irq_create_of_mapping(struct device_node *controller,
                                    const u32 *intspec, unsigned int intsize)
 {
-        return intspec[0];
+        return intspec[0] + IRQ_OFFSET;
 }
 EXPORT_SYMBOL_GPL(irq_create_of_mapping);
diff --git a/arch/microblaze/kernel/module.c b/arch/microblaze/kernel/module.c
index 142426f631bb..f39257a5abcf 100644
--- a/arch/microblaze/kernel/module.c
+++ b/arch/microblaze/kernel/module.c
@@ -100,7 +100,7 @@ int apply_relocate_add(Elf32_Shdr *sechdrs, const char *strtab,
                         break;
 
                 case R_MICROBLAZE_64_NONE:
-                        pr_debug("R_MICROBLAZE_NONE\n");
+                        pr_debug("R_MICROBLAZE_64_NONE\n");
                         break;
 
                 case R_MICROBLAZE_NONE:
diff --git a/arch/microblaze/kernel/setup.c b/arch/microblaze/kernel/setup.c
index 0e654a12d37e..604cd9dd1333 100644
--- a/arch/microblaze/kernel/setup.c
+++ b/arch/microblaze/kernel/setup.c
@@ -145,32 +145,32 @@ void __init machine_early_init(const char *cmdline, unsigned int ram,
         setup_early_printk(NULL);
 #endif
 
-        eprintk("Ramdisk addr 0x%08x, ", ram);
+        printk("Ramdisk addr 0x%08x, ", ram);
         if (fdt)
-                eprintk("FDT at 0x%08x\n", fdt);
+                printk("FDT at 0x%08x\n", fdt);
         else
-                eprintk("Compiled-in FDT at 0x%08x\n",
+                printk("Compiled-in FDT at 0x%08x\n",
                                         (unsigned int)_fdt_start);
 
 #ifdef CONFIG_MTD_UCLINUX
-        eprintk("Found romfs @ 0x%08x (0x%08x)\n",
+        printk("Found romfs @ 0x%08x (0x%08x)\n",
                         romfs_base, romfs_size);
-        eprintk("#### klimit %p ####\n", old_klimit);
+        printk("#### klimit %p ####\n", old_klimit);
         BUG_ON(romfs_size < 0); /* What else can we do? */
 
-        eprintk("Moved 0x%08x bytes from 0x%08x to 0x%08x\n",
+        printk("Moved 0x%08x bytes from 0x%08x to 0x%08x\n",
                         romfs_size, romfs_base, (unsigned)&_ebss);
 
-        eprintk("New klimit: 0x%08x\n", (unsigned)klimit);
+        printk("New klimit: 0x%08x\n", (unsigned)klimit);
 #endif
 
 #if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR
         if (msr)
-                eprintk("!!!Your kernel has setup MSR instruction but "
+                printk("!!!Your kernel has setup MSR instruction but "
                                 "CPU don't have it %x\n", msr);
 #else
         if (!msr)
-                eprintk("!!!Your kernel not setup MSR instruction but "
+                printk("!!!Your kernel not setup MSR instruction but "
                                 "CPU have it %x\n", msr);
 #endif
 
diff --git a/arch/microblaze/kernel/syscall_table.S b/arch/microblaze/kernel/syscall_table.S
index 8789daa2a346..6a2b294ef6dc 100644
--- a/arch/microblaze/kernel/syscall_table.S
+++ b/arch/microblaze/kernel/syscall_table.S
@@ -380,3 +380,6 @@ ENTRY(sys_call_table)
         .long sys_clock_adjtime
         .long sys_syncfs
         .long sys_setns                 /* 375 */
+        .long sys_sendmmsg
+        .long sys_process_vm_readv
+        .long sys_process_vm_writev
diff --git a/arch/microblaze/kernel/timer.c b/arch/microblaze/kernel/timer.c
index af74b1113aab..3cb0bf640135 100644
--- a/arch/microblaze/kernel/timer.c
+++ b/arch/microblaze/kernel/timer.c
@@ -243,7 +243,7 @@ static int timer_initialized;
 
 void __init time_init(void)
 {
-        u32 irq, i = 0;
+        u32 irq;
         u32 timer_num = 1;
         struct device_node *timer = NULL;
         const void *prop;
@@ -258,33 +258,24 @@ void __init time_init(void)
                                 0
                         };
 #endif
-        const char * const timer_list[] = {
-                "xlnx,xps-timer-1.00.a",
-                NULL
-        };
-
-        for (i = 0; timer_list[i] != NULL; i++) {
-                timer = of_find_compatible_node(NULL, NULL, timer_list[i]);
-                if (timer)
-                        break;
-        }
+        timer = of_find_compatible_node(NULL, NULL, "xlnx,xps-timer-1.00.a");
         BUG_ON(!timer);
 
         timer_baseaddr = be32_to_cpup(of_get_property(timer, "reg", NULL));
         timer_baseaddr = (unsigned long) ioremap(timer_baseaddr, PAGE_SIZE);
-        irq = be32_to_cpup(of_get_property(timer, "interrupts", NULL));
+        irq = irq_of_parse_and_map(timer, 0);
         timer_num = be32_to_cpup(of_get_property(timer,
                                                 "xlnx,one-timer-only", NULL));
         if (timer_num) {
-                eprintk(KERN_EMERG "Please enable two timers in HW\n");
+                printk(KERN_EMERG "Please enable two timers in HW\n");
                 BUG();
         }
 
 #ifdef CONFIG_SELFMOD_TIMER
         selfmod_function((int *) arr_func, timer_baseaddr);
 #endif
-        printk(KERN_INFO "%s #0 at 0x%08x, irq=%d\n",
-                timer_list[i], timer_baseaddr, irq);
+        printk(KERN_INFO "XPS timer #0 at 0x%08x, irq=%d\n",
+                timer_baseaddr, irq);
 
         /* If there is clock-frequency property than use it */
         prop = of_get_property(timer, "clock-frequency", NULL);
diff --git a/arch/microblaze/lib/Makefile b/arch/microblaze/lib/Makefile
index c13067b243c3..844960e8ae18 100644
--- a/arch/microblaze/lib/Makefile
+++ b/arch/microblaze/lib/Makefile
@@ -20,6 +20,7 @@ lib-y += uaccess_old.o
 
 lib-y += ashldi3.o
 lib-y += ashrdi3.o
+lib-y += cmpdi2.o
 lib-y += divsi3.o
 lib-y += lshrdi3.o
 lib-y += modsi3.o
diff --git a/arch/microblaze/lib/cmpdi2.c b/arch/microblaze/lib/cmpdi2.c
new file mode 100644
index 000000000000..a708400ea7b7
--- /dev/null
+++ b/arch/microblaze/lib/cmpdi2.c
@@ -0,0 +1,26 @@
+#include <linux/module.h>
+
+#include "libgcc.h"
+
+word_type __cmpdi2(long long a, long long b)
+{
+        const DWunion au = {
+                .ll = a
+        };
+        const DWunion bu = {
+                .ll = b
+        };
+
+        if (au.s.high < bu.s.high)
+                return 0;
+        else if (au.s.high > bu.s.high)
+                return 2;
+
+        if ((unsigned int) au.s.low < (unsigned int) bu.s.low)
+                return 0;
+        else if ((unsigned int) au.s.low > (unsigned int) bu.s.low)
+                return 2;
+
+        return 1;
+}
+EXPORT_SYMBOL(__cmpdi2);
diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c
index db841c7b9d5b..0d71b2ed8107 100644
--- a/arch/microblaze/pci/pci-common.c
+++ b/arch/microblaze/pci/pci-common.c
@@ -242,7 +242,7 @@ int pci_read_irq_line(struct pci_dev *pci_dev)
                          line, pin);
 
                 virq = irq_create_mapping(NULL, line);
-                if (virq != NO_IRQ)
+                if (virq)
                         irq_set_irq_type(virq, IRQ_TYPE_LEVEL_LOW);
         } else {
                 pr_debug(" Got one, spec %d cells (0x%08x 0x%08x...) on %s\n",
@@ -253,7 +253,7 @@ int pci_read_irq_line(struct pci_dev *pci_dev)
                 virq = irq_create_of_mapping(oirq.controller, oirq.specifier,
                                              oirq.size);
         }
-        if (virq == NO_IRQ) {
+        if (!virq) {
                 pr_debug(" Failed to map !\n");
                 return -1;
         }