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

Pull microblaze update from Michal Simek:
 "The main change is UAPI for Microblaze."

* 'next' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: signal: Declare do_notify_resume
  microblaze: lib: Add lib function declarations
  microblaze: lib: Remove helper macros
  microblaze: Add static qualifiers
  microblaze: Wire-up new system call kcmp
  microblaze: Fix intc_enable_or_unmask function
  microblaze: Do not initialized regs->r1 twice in ELF_PLAT_INIT
  microblaze: Remove passing the second arg to schedule_tail
  UAPI: (Scripted) Disintegrate arch/microblaze/include/asm
  microblaze: uaccess.h: Fix timerfd syscall
  microblaze: Remove BIP from childregs

arch/microblaze/include/asm/Kbuild

@@ -1,6 +1,4 @@
-include include/asm-generic/Kbuild.asm
 
-header-y  += elf.h
 generic-y += clkdev.h
 generic-y += exec.h
 generic-y += trace_clock.h

arch/microblaze/include/asm/elf.h

@@ -7,119 +7,24 @@
  * License. See the file "COPYING" in the main directory of this archive
  * for more details.
  */
-
 #ifndef _ASM_MICROBLAZE_ELF_H
 #define _ASM_MICROBLAZE_ELF_H
 
-/*
- * Note there is no "official" ELF designation for Microblaze.
- * I've snaffled the value from the microblaze binutils source code
- * /binutils/microblaze/include/elf/microblaze.h
- */
-#define EM_MICROBLAZE		189
-#define EM_MICROBLAZE_OLD	0xbaab
-#define ELF_ARCH		EM_MICROBLAZE
-
-/*
- * This is used to ensure we don't load something for the wrong architecture.
- */
-#define elf_check_arch(x)	((x)->e_machine == EM_MICROBLAZE \
-				 || (x)->e_machine == EM_MICROBLAZE_OLD)
-
-/*
- * These are used to set parameters in the core dumps.
- */
-#define ELF_CLASS	ELFCLASS32
+#include <uapi/asm/elf.h>
 
 #ifndef __uClinux__
-
-/*
- * ELF register definitions..
- */
-
-#include <asm/ptrace.h>
-#include <asm/byteorder.h>
-
 #ifndef ELF_GREG_T
-#define ELF_GREG_T
-typedef unsigned long elf_greg_t;
 #endif
-
 #ifndef ELF_NGREG
-#define ELF_NGREG (sizeof(struct pt_regs) / sizeof(elf_greg_t))
 #endif
-
 #ifndef ELF_GREGSET_T
-#define ELF_GREGSET_T
-typedef elf_greg_t elf_gregset_t[ELF_NGREG];
 #endif
-
 #ifndef ELF_FPREGSET_T
-#define ELF_FPREGSET_T
-
-/* TBD */
-#define ELF_NFPREG	33	/* includes fsr */
-typedef unsigned long elf_fpreg_t;
-typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
-
-/* typedef struct user_fpu_struct elf_fpregset_t; */
 #endif
-
-/* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
- * use of this is to invoke "./ld.so someprog" to test out a new version of
- * the loader.  We need to make sure that it is out of the way of the program
- * that it will "exec", and that there is sufficient room for the brk.
- */
-
-#define ELF_ET_DYN_BASE         (0x08000000)
-
 #ifdef __MICROBLAZEEL__
-#define ELF_DATA	ELFDATA2LSB
 #else
-#define ELF_DATA	ELFDATA2MSB
 #endif
-
-#define ELF_EXEC_PAGESIZE	PAGE_SIZE
-
-
-#define ELF_CORE_COPY_REGS(_dest, _regs)			\
-	memcpy((char *) &_dest, (char *) _regs,		\
-	sizeof(struct pt_regs));
-
-/* This yields a mask that user programs can use to figure out what
- * instruction set this CPU supports.  This could be done in user space,
- * but it's not easy, and we've already done it here.
- */
-#define ELF_HWCAP	(0)
-
-/* This yields a string that ld.so will use to load implementation
- * specific libraries for optimization.  This is more specific in
- * intent than poking at uname or /proc/cpuinfo.
-
- * For the moment, we have only optimizations for the Intel generations,
- * but that could change...
- */
-#define ELF_PLATFORM  (NULL)
-
-/* Added _f parameter. Is this definition correct: TBD */
-#define ELF_PLAT_INIT(_r, _f)				\
-do {							\
-	_r->r1 =  _r->r1 =  _r->r2 =  _r->r3 =		\
-	_r->r4 =  _r->r5 =  _r->r6 =  _r->r7 =		\
-	_r->r8 =  _r->r9 =  _r->r10 = _r->r11 =		\
-	_r->r12 = _r->r13 = _r->r14 = _r->r15 =		\
-	_r->r16 = _r->r17 = _r->r18 = _r->r19 =		\
-	_r->r20 = _r->r21 = _r->r22 = _r->r23 =		\
-	_r->r24 = _r->r25 = _r->r26 = _r->r27 =		\
-	_r->r28 = _r->r29 = _r->r30 = _r->r31 =		\
-	0;						\
-} while (0)
-
-#ifdef __KERNEL__
 #define SET_PERSONALITY(ex) \
 	set_personality(PER_LINUX_32BIT | (current->personality & (~PER_MASK)))
-#endif
-
 #endif /* __uClinux__ */
-
 #endif /* _ASM_MICROBLAZE_ELF_H */

arch/microblaze/include/asm/entry.h

@@ -29,6 +29,8 @@ DECLARE_PER_CPU(unsigned int, KM); /* Kernel/user mode */
 DECLARE_PER_CPU(unsigned int, ENTRY_SP); /* Saved SP on kernel entry */
 DECLARE_PER_CPU(unsigned int, R11_SAVE); /* Temp variable for entry */
 DECLARE_PER_CPU(unsigned int, CURRENT_SAVE); /* Saved current pointer */
+
+extern asmlinkage void do_notify_resume(struct pt_regs *regs, int in_syscall);
 # endif /* __ASSEMBLY__ */
 
 #endif /* _ASM_MICROBLAZE_ENTRY_H */

arch/microblaze/include/asm/ptrace.h

@@ -5,56 +5,12 @@
  * License. See the file "COPYING" in the main directory of this archive
  * for more details.
  */
-
 #ifndef _ASM_MICROBLAZE_PTRACE_H
 #define _ASM_MICROBLAZE_PTRACE_H
 
-#ifndef __ASSEMBLY__
-
-typedef unsigned long microblaze_reg_t;
+#include <uapi/asm/ptrace.h>
 
-struct pt_regs {
-	microblaze_reg_t r0;
-	microblaze_reg_t r1;
-	microblaze_reg_t r2;
-	microblaze_reg_t r3;
-	microblaze_reg_t r4;
-	microblaze_reg_t r5;
-	microblaze_reg_t r6;
-	microblaze_reg_t r7;
-	microblaze_reg_t r8;
-	microblaze_reg_t r9;
-	microblaze_reg_t r10;
-	microblaze_reg_t r11;
-	microblaze_reg_t r12;
-	microblaze_reg_t r13;
-	microblaze_reg_t r14;
-	microblaze_reg_t r15;
-	microblaze_reg_t r16;
-	microblaze_reg_t r17;
-	microblaze_reg_t r18;
-	microblaze_reg_t r19;
-	microblaze_reg_t r20;
-	microblaze_reg_t r21;
-	microblaze_reg_t r22;
-	microblaze_reg_t r23;
-	microblaze_reg_t r24;
-	microblaze_reg_t r25;
-	microblaze_reg_t r26;
-	microblaze_reg_t r27;
-	microblaze_reg_t r28;
-	microblaze_reg_t r29;
-	microblaze_reg_t r30;
-	microblaze_reg_t r31;
-	microblaze_reg_t pc;
-	microblaze_reg_t msr;
-	microblaze_reg_t ear;
-	microblaze_reg_t esr;
-	microblaze_reg_t fsr;
-	int pt_mode;
-};
-
-#ifdef __KERNEL__
+#ifndef __ASSEMBLY__
 #define kernel_mode(regs)		((regs)->pt_mode)
 #define user_mode(regs)			(!kernel_mode(regs))
 
@@ -66,19 +22,5 @@ static inline long regs_return_value(struct pt_regs *regs)
 	return regs->r3;
 }
 
-#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))
-
-#endif /* __KERNEL */
-
 #endif /* __ASSEMBLY__ */
-
 #endif /* _ASM_MICROBLAZE_PTRACE_H */

arch/microblaze/include/asm/setup.h

@@ -7,15 +7,12 @@
  * License. See the file "COPYING" in the main directory of this archive
  * for more details.
  */
-
 #ifndef _ASM_MICROBLAZE_SETUP_H
 #define _ASM_MICROBLAZE_SETUP_H
 
-#define COMMAND_LINE_SIZE	256
+#include <uapi/asm/setup.h>
 
 # ifndef __ASSEMBLY__
-
-#  ifdef __KERNEL__
 extern unsigned int boot_cpuid; /* move to smp.h */
 
 extern char cmd_line[COMMAND_LINE_SIZE];
@@ -53,6 +50,5 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end);
 extern void *alloc_maybe_bootmem(size_t size, gfp_t mask);
 extern void *zalloc_maybe_bootmem(size_t size, gfp_t mask);
 
-#  endif/* __KERNEL__ */
 # endif /* __ASSEMBLY__ */
 #endif /* _ASM_MICROBLAZE_SETUP_H */

arch/microblaze/include/asm/uaccess.h

@@ -298,11 +298,10 @@ extern long __user_bad(void);
 
 #define __put_user_check(x, ptr, size)					\
 ({									\
-	typeof(*(ptr)) __pu_val;					\
+	typeof(*(ptr)) volatile __pu_val = x;					\
 	typeof(*(ptr)) __user *__pu_addr = (ptr);			\
 	int __pu_err = 0;						\
 									\
-	__pu_val = (x);							\
 	if (access_ok(VERIFY_WRITE, __pu_addr, size)) {			\
 		switch (size) {						\
 		case 1:							\