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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 000000000000..a619a4d97aae --- /dev/null +++ b/arch/sparc/include/asm/asmmacro.h | |||
@@ -0,0 +1,45 @@ | |||
1 | /* asmmacro.h: Assembler macros. | ||
2 | * | ||
3 | * Copyright (C) 1996 David S. Miller (davem@caipfs.rutgers.edu) | ||
4 | */ | ||
5 | |||
6 | #ifndef _SPARC_ASMMACRO_H | ||
7 | #define _SPARC_ASMMACRO_H | ||
8 | |||
9 | #include <asm/btfixup.h> | ||
10 | #include <asm/asi.h> | ||
11 | |||
12 | #define GET_PROCESSOR4M_ID(reg) \ | ||
13 | rd %tbr, %reg; \ | ||
14 | srl %reg, 12, %reg; \ | ||
15 | and %reg, 3, %reg; | ||
16 | |||
17 | #define GET_PROCESSOR4D_ID(reg) \ | ||
18 | lda [%g0] ASI_M_VIKING_TMP1, %reg; | ||
19 | |||
20 | /* All trap entry points _must_ begin with this macro or else you | ||
21 | * lose. It makes sure the kernel has a proper window so that | ||
22 | * c-code can be called. | ||
23 | */ | ||
24 | #define SAVE_ALL_HEAD \ | ||
25 | sethi %hi(trap_setup), %l4; \ | ||
26 | jmpl %l4 + %lo(trap_setup), %l6; | ||
27 | #define SAVE_ALL \ | ||
28 | SAVE_ALL_HEAD \ | ||
29 | nop; | ||
30 | |||
31 | /* All traps low-level code here must end with this macro. */ | ||
32 | #define RESTORE_ALL b ret_trap_entry; clr %l6; | ||
33 | |||
34 | /* sun4 probably wants half word accesses to ASI_SEGMAP, while sun4c+ | ||
35 | likes byte accesses. These are to avoid ifdef mania. */ | ||
36 | |||
37 | #ifdef CONFIG_SUN4 | ||
38 | #define lduXa lduha | ||
39 | #define stXa stha | ||
40 | #else | ||
41 | #define lduXa lduba | ||
42 | #define stXa stba | ||
43 | #endif | ||
44 | |||
45 | #endif /* !(_SPARC_ASMMACRO_H) */ | ||