diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-28 08:33:25 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-28 08:33:25 -0700 |
| commit | c32f1a34ff1097110469a240ea4539dc9c101e96 (patch) | |
| tree | eda863205e83afe54cbedcf15cdac416cdec2cf5 /arch/sparc/include/asm/asmmacro.h | |
| parent | 4f31f3080943c7e3541f07df326f06d598a067d0 (diff) | |
| parent | 04d91cb8163f7f946e348b2362a6e5dfa5f06b13 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
sparc: Set CONFIG_HAVE_ARCH_TRACEHOOK
sparc: Add task_pt_regs().
sparc: Add call to tracehook_signal_handler().
sparc: Create and use TIF_NOTIFY_RESUME.
sparc: Use tracehook routines in syscall_trace().
sparc64: tracehook: CONFIG_HAVE_ARCH_TRACEHOOK
sparc: Add user_stack_pointer().
sparc64: tracehook_signal_handler
sparc64: tracehook: TIF_NOTIFY_RESUME
sparc: Add asm/syscall.h
sparc64: tracehook syscall
sparc: enable headers_export again
sparc, sparc64: use arch/sparc/include
Diffstat (limited to 'arch/sparc/include/asm/asmmacro.h')
| -rw-r--r-- | arch/sparc/include/asm/asmmacro.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/asmmacro.h b/arch/sparc/include/asm/asmmacro.h new file mode 100644 index 00000000000..a619a4d97aa --- /dev/null +++ b/arch/sparc/include/asm/asmmacro.h @@ -0,0 +1,45 @@ +/* asmmacro.h: Assembler macros. + * + * Copyright (C) 1996 David S. Miller (davem@caipfs.rutgers.edu) + */ + +#ifndef _SPARC_ASMMACRO_H +#define _SPARC_ASMMACRO_H + +#include <asm/btfixup.h> +#include <asm/asi.h> + +#define GET_PROCESSOR4M_ID(reg) \ + rd %tbr, %reg; \ + srl %reg, 12, %reg; \ + and %reg, 3, %reg; + +#define GET_PROCESSOR4D_ID(reg) \ + lda [%g0] ASI_M_VIKING_TMP1, %reg; + +/* All trap entry points _must_ begin with this macro or else you + * lose. It makes sure the kernel has a proper window so that + * c-code can be called. + */ +#define SAVE_ALL_HEAD \ + sethi %hi(trap_setup), %l4; \ + jmpl %l4 + %lo(trap_setup), %l6; +#define SAVE_ALL \ + SAVE_ALL_HEAD \ + nop; + +/* All traps low-level code here must end with this macro. */ +#define RESTORE_ALL b ret_trap_entry; clr %l6; + +/* sun4 probably wants half word accesses to ASI_SEGMAP, while sun4c+ + likes byte accesses. These are to avoid ifdef mania. */ + +#ifdef CONFIG_SUN4 +#define lduXa lduha +#define stXa stha +#else +#define lduXa lduba +#define stXa stba +#endif + +#endif /* !(_SPARC_ASMMACRO_H) */ |