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

* 'next' of git://git.monstr.eu/linux-2.6-microblaze: (33 commits)
  microblaze: Do not copy reset vectors/manual reset vector setup
  microblaze: Fix _reset function
  microblaze: Fix microblaze init vectors
  microblaze: Fix circular headers dependency when ftrace is enabled.
  microblaze: Fix typo in Kconfig
  microblaze: Add missing export symbols for lib functions
  microblaze: Fix /dev/zero corruption from __clear_user()
  microblaze: Convert irq_chip to new functions
  microblaze: Select GENERIC_HARDIRQS_NO_DEPRECATED
  microblaze: Remove stale irq_chip.end
  microblaze: Fix sparse warnings - signal.c
  microblaze: Fix sparse warning - fault.c
  microblaze: Fix missing microblaze specific syscalls declaration
  microblaze: Fix sparse warnings - cache.c
  microblaze: Fix sparse warning - cpuinfo.h
  microblaze: Fix sparse warning - unwind.c
  microblaze: Fix sparse warning - consistent_alloc function
  microblaze: Fix sparse warnings - ptrace
  microblaze: Fix sparse warning - sw_exceptions
  microblaze: Fix sparse warning - timer.c
  ...

12 files changed, 44 insertions, 62 deletions

diff --git a/arch/microblaze/include/asm/cacheflush.h b/arch/microblaze/include/asm/cacheflush.h
index 7ebd955460d9..0f553bc009a0 100644
--- a/arch/microblaze/include/asm/cacheflush.h
+++ b/arch/microblaze/include/asm/cacheflush.h
@@ -84,12 +84,13 @@ do { \
 #define flush_dcache_mmap_lock(mapping)         do { } while (0)
 #define flush_dcache_mmap_unlock(mapping)       do { } while (0)
 
-
 #define flush_cache_dup_mm(mm)                          do { } while (0)
 #define flush_cache_vmap(start, end)                    do { } while (0)
 #define flush_cache_vunmap(start, end)                  do { } while (0)
 #define flush_cache_mm(mm)                      do { } while (0)
-#define flush_cache_page(vma, vmaddr, pfn)      do { } while (0)
+
+#define flush_cache_page(vma, vmaddr, pfn) \
+        flush_dcache_range(pfn << PAGE_SHIFT, (pfn << PAGE_SHIFT) + PAGE_SIZE);
 
 /* MS: kgdb code use this macro, wrong len with FLASH */
 #if 0
@@ -104,9 +105,13 @@ do { \
 #define copy_to_user_page(vma, page, vaddr, dst, src, len)              \
 do {                                                                    \
         u32 addr = virt_to_phys(dst);                                   \
-        invalidate_icache_range((unsigned) (addr), (unsigned) (addr) + (len));\
         memcpy((dst), (src), (len));                                    \
-        flush_dcache_range((unsigned) (addr), (unsigned) (addr) + (len));\
+        if (vma->vm_flags & VM_EXEC) {                                  \
+                invalidate_icache_range((unsigned) (addr),              \
+                                        (unsigned) (addr) + PAGE_SIZE); \
+                flush_dcache_range((unsigned) (addr),                   \
+                                        (unsigned) (addr) + PAGE_SIZE); \
+        }                                                               \
 } while (0)
 
 #define copy_from_user_page(vma, page, vaddr, dst, src, len)            \
diff --git a/arch/microblaze/include/asm/cpuinfo.h b/arch/microblaze/include/asm/cpuinfo.h
index cd257537ae54..d8f013347a9e 100644
--- a/arch/microblaze/include/asm/cpuinfo.h
+++ b/arch/microblaze/include/asm/cpuinfo.h
@@ -96,8 +96,8 @@ void set_cpuinfo_pvr_full(struct cpuinfo *ci, struct device_node *cpu);
 
 static inline unsigned int fcpu(struct device_node *cpu, char *n)
 {
-        int *val;
-        return (val = (int *) of_get_property(cpu, n, NULL)) ?
+        const __be32 *val;
+        return (val = of_get_property(cpu, n, NULL)) ?
                                                         be32_to_cpup(val) : 0;
 }
 
diff --git a/arch/microblaze/include/asm/entry.h b/arch/microblaze/include/asm/entry.h
index ec89f2ad0fe1..af0144b91b79 100644
--- a/arch/microblaze/include/asm/entry.h
+++ b/arch/microblaze/include/asm/entry.h
@@ -31,40 +31,4 @@ DECLARE_PER_CPU(unsigned int, R11_SAVE); /* Temp variable for entry */
 DECLARE_PER_CPU(unsigned int, CURRENT_SAVE); /* Saved current pointer */
 # endif /* __ASSEMBLY__ */
 
-#ifndef CONFIG_MMU
-
-/* noMMU hasn't any space for args */
-# define STATE_SAVE_ARG_SPACE   (0)
-
-#else /* CONFIG_MMU */
-
-/* If true, system calls save and restore all registers (except result
- * registers, of course).  If false, then `call clobbered' registers
- * will not be preserved, on the theory that system calls are basically
- * function calls anyway, and the caller should be able to deal with it.
- * This is a security risk, of course, as `internal' values may leak out
- * after a system call, but that certainly doesn't matter very much for
- * a processor with no MMU protection!  For a protected-mode kernel, it
- * would be faster to just zero those registers before returning.
- *
- * I can not rely on the glibc implementation. If you turn it off make
- * sure that r11/r12 is saved in user-space. --KAA
- *
- * These are special variables using by the kernel trap/interrupt code
- * to save registers in, at a time when there are no spare registers we
- * can use to do so, and we can't depend on the value of the stack
- * pointer.  This means that they must be within a signed 16-bit
- * displacement of 0x00000000.
- */
-
-/* A `state save frame' is a struct pt_regs preceded by some extra space
- * suitable for a function call stack frame. */
-
-/* Amount of room on the stack reserved for arguments and to satisfy the
- * C calling conventions, in addition to the space used by the struct
- * pt_regs that actually holds saved values. */
-#define STATE_SAVE_ARG_SPACE    (6*4) /* Up to six arguments */
-
-#endif /* CONFIG_MMU */
-
 #endif /* _ASM_MICROBLAZE_ENTRY_H */
diff --git a/arch/microblaze/include/asm/exceptions.h b/arch/microblaze/include/asm/exceptions.h
index 6479097b802b..e6a8ddea1dca 100644
--- a/arch/microblaze/include/asm/exceptions.h
+++ b/arch/microblaze/include/asm/exceptions.h
@@ -66,6 +66,9 @@
 asmlinkage void full_exception(struct pt_regs *regs, unsigned int type,
                                                         int fsr, int addr);
 
+asmlinkage void sw_exception(struct pt_regs *regs);
+void bad_page_fault(struct pt_regs *regs, unsigned long address, int sig);
+
 void die(const char *str, struct pt_regs *fp, long err);
 void _exception(int signr, struct pt_regs *regs, int code, unsigned long addr);
 
diff --git a/arch/microblaze/include/asm/irq.h b/arch/microblaze/include/asm/irq.h
index ec5583d6111c..cc54187f3d38 100644
--- a/arch/microblaze/include/asm/irq.h
+++ b/arch/microblaze/include/asm/irq.h
@@ -12,8 +12,6 @@
 #define NR_IRQS 32
 #include <asm-generic/irq.h>
 
-#include <linux/interrupt.h>
-
 /* This type is the placeholder for a hardware interrupt number. It has to
  * be big enough to enclose whatever representation is used by a given
  * platform.
diff --git a/arch/microblaze/include/asm/pgtable.h b/arch/microblaze/include/asm/pgtable.h
index 885574a73f01..b2af42311a12 100644
--- a/arch/microblaze/include/asm/pgtable.h
+++ b/arch/microblaze/include/asm/pgtable.h
@@ -572,7 +572,7 @@ void __init *early_get_page(void);
 
 extern unsigned long ioremap_bot, ioremap_base;
 
-void *consistent_alloc(int gfp, size_t size, dma_addr_t *dma_handle);
+void *consistent_alloc(gfp_t gfp, size_t size, dma_addr_t *dma_handle);
 void consistent_free(size_t size, void *vaddr);
 void consistent_sync(void *vaddr, size_t size, int direction);
 void consistent_sync_page(struct page *page, unsigned long offset,
diff --git a/arch/microblaze/include/asm/processor.h b/arch/microblaze/include/asm/processor.h
index 8eeb09211ece..aed2a6be8e27 100644
--- a/arch/microblaze/include/asm/processor.h
+++ b/arch/microblaze/include/asm/processor.h
@@ -155,7 +155,7 @@ unsigned long get_wchan(struct task_struct *p);
 #  define task_regs(task) ((struct pt_regs *)task_tos(task) - 1)
 
 #  define task_pt_regs_plus_args(tsk) \
-        (((void *)task_pt_regs(tsk)) - STATE_SAVE_ARG_SPACE)
+        ((void *)task_pt_regs(tsk))
 
 #  define task_sp(task) (task_regs(task)->r1)
 #  define task_pc(task) (task_regs(task)->pc)
diff --git a/arch/microblaze/include/asm/ptrace.h b/arch/microblaze/include/asm/ptrace.h
index d74dbfb92c04..d9b66304d5dd 100644
--- a/arch/microblaze/include/asm/ptrace.h
+++ b/arch/microblaze/include/asm/ptrace.h
@@ -66,13 +66,13 @@ void show_regs(struct pt_regs *);
 #else /* __KERNEL__ */
 
 /* pt_regs offsets used by gdbserver etc in ptrace syscalls */
-#define PT_GPR(n)       ((n) * sizeof(microblaze_reg_t))
-#define PT_PC           (32 * sizeof(microblaze_reg_t))
-#define PT_MSR          (33 * sizeof(microblaze_reg_t))
-#define PT_EAR          (34 * sizeof(microblaze_reg_t))
-#define PT_ESR          (35 * sizeof(microblaze_reg_t))
-#define PT_FSR          (36 * sizeof(microblaze_reg_t))
-#define PT_KERNEL_MODE  (37 * sizeof(microblaze_reg_t))
+#define PT_GPR(n)       ((n) * sizeof(microblaze_reg_t))
+#define PT_PC           (32 * sizeof(microblaze_reg_t))
+#define PT_MSR          (33 * sizeof(microblaze_reg_t))
+#define PT_EAR          (34 * sizeof(microblaze_reg_t))
+#define PT_ESR          (35 * sizeof(microblaze_reg_t))
+#define PT_FSR          (36 * sizeof(microblaze_reg_t))
+#define PT_KERNEL_MODE  (37 * sizeof(microblaze_reg_t))
 
 #endif /* __KERNEL */
 
diff --git a/arch/microblaze/include/asm/syscall.h b/arch/microblaze/include/asm/syscall.h
index 048dfcd8d89d..9bc431783105 100644
--- a/arch/microblaze/include/asm/syscall.h
+++ b/arch/microblaze/include/asm/syscall.h
@@ -96,4 +96,7 @@ static inline void syscall_set_arguments(struct task_struct *task,
                 microblaze_set_syscall_arg(regs, i++, *args++);
 }
 
+asmlinkage long do_syscall_trace_enter(struct pt_regs *regs);
+asmlinkage void do_syscall_trace_leave(struct pt_regs *regs);
+
 #endif /* __ASM_MICROBLAZE_SYSCALL_H */
diff --git a/arch/microblaze/include/asm/syscalls.h b/arch/microblaze/include/asm/syscalls.h
index 720761cc741f..27f2f4c0f39f 100644
--- a/arch/microblaze/include/asm/syscalls.h
+++ b/arch/microblaze/include/asm/syscalls.h
@@ -1,5 +1,13 @@
 #ifndef __ASM_MICROBLAZE_SYSCALLS_H
 
+asmlinkage long microblaze_vfork(struct pt_regs *regs);
+asmlinkage long microblaze_clone(int flags, unsigned long stack,
+                                                        struct pt_regs *regs);
+asmlinkage long microblaze_execve(const char __user *filenamei,
+                                  const char __user *const __user *argv,
+                                  const char __user *const __user *envp,
+                                  struct pt_regs *regs);
+
 asmlinkage long sys_clone(int flags, unsigned long stack, struct pt_regs *regs);
 #define sys_clone sys_clone
 
diff --git a/arch/microblaze/include/asm/uaccess.h b/arch/microblaze/include/asm/uaccess.h
index d840f4a2d3c9..5bb95a11880d 100644
--- a/arch/microblaze/include/asm/uaccess.h
+++ b/arch/microblaze/include/asm/uaccess.h
@@ -120,16 +120,16 @@ static inline unsigned long __must_check __clear_user(void __user *to,
 {
         /* normal memset with two words to __ex_table */
         __asm__ __volatile__ (                          \
-                        "1:     sb      r0, %2, r0;"    \
+                        "1:     sb      r0, %1, r0;"    \
                         "       addik   %0, %0, -1;"    \
                         "       bneid   %0, 1b;"        \
-                        "       addik   %2, %2, 1;"     \
+                        "       addik   %1, %1, 1;"     \
                         "2:                     "       \
                         __EX_TABLE_SECTION              \
                         ".word  1b,2b;"                 \
                         ".previous;"                    \
-                : "=r"(n)                               \
-                : "0"(n), "r"(to)
+                : "=r"(n), "=r"(to)                     \
+                : "0"(n), "1"(to)
         );
         return n;
 }
diff --git a/arch/microblaze/include/asm/unaligned.h b/arch/microblaze/include/asm/unaligned.h
index 2b97cbe500e9..b162ed880495 100644
--- a/arch/microblaze/include/asm/unaligned.h
+++ b/arch/microblaze/include/asm/unaligned.h
@@ -12,18 +12,19 @@
 
 # ifdef __KERNEL__
 
-# include <linux/unaligned/be_byteshift.h>
-# include <linux/unaligned/le_byteshift.h>
-# include <linux/unaligned/generic.h>
-
-
 #  ifdef __MICROBLAZEEL__
+#   include <linux/unaligned/le_struct.h>
+#   include <linux/unaligned/be_byteshift.h>
 #   define get_unaligned        __get_unaligned_le
 #   define put_unaligned        __put_unaligned_le
 #  else
+#   include <linux/unaligned/be_struct.h>
+#   include <linux/unaligned/le_byteshift.h>
 #   define get_unaligned        __get_unaligned_be
 #   define put_unaligned        __put_unaligned_be
 #  endif
 
+# include <linux/unaligned/generic.h>
+
 # endif /* __KERNEL__ */
 #endif /* _ASM_MICROBLAZE_UNALIGNED_H */