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Diffstat (limited to 'include/asm-sparc/asmmacro.h')
-rw-r--r-- | include/asm-sparc/asmmacro.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/include/asm-sparc/asmmacro.h b/include/asm-sparc/asmmacro.h new file mode 100644 index 000000000000..0d4b65bd252b --- /dev/null +++ b/include/asm-sparc/asmmacro.h | |||
@@ -0,0 +1,46 @@ | |||
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 <linux/config.h> | ||
10 | #include <asm/btfixup.h> | ||
11 | #include <asm/asi.h> | ||
12 | |||
13 | #define GET_PROCESSOR4M_ID(reg) \ | ||
14 | rd %tbr, %reg; \ | ||
15 | srl %reg, 12, %reg; \ | ||
16 | and %reg, 3, %reg; | ||
17 | |||
18 | #define GET_PROCESSOR4D_ID(reg) \ | ||
19 | lda [%g0] ASI_M_VIKING_TMP1, %reg; | ||
20 | |||
21 | /* All trap entry points _must_ begin with this macro or else you | ||
22 | * lose. It makes sure the kernel has a proper window so that | ||
23 | * c-code can be called. | ||
24 | */ | ||
25 | #define SAVE_ALL_HEAD \ | ||
26 | sethi %hi(trap_setup), %l4; \ | ||
27 | jmpl %l4 + %lo(trap_setup), %l6; | ||
28 | #define SAVE_ALL \ | ||
29 | SAVE_ALL_HEAD \ | ||
30 | nop; | ||
31 | |||
32 | /* All traps low-level code here must end with this macro. */ | ||
33 | #define RESTORE_ALL b ret_trap_entry; clr %l6; | ||
34 | |||
35 | /* sun4 probably wants half word accesses to ASI_SEGMAP, while sun4c+ | ||
36 | likes byte accesses. These are to avoid ifdef mania. */ | ||
37 | |||
38 | #ifdef CONFIG_SUN4 | ||
39 | #define lduXa lduha | ||
40 | #define stXa stha | ||
41 | #else | ||
42 | #define lduXa lduba | ||
43 | #define stXa stba | ||
44 | #endif | ||
45 | |||
46 | #endif /* !(_SPARC_ASMMACRO_H) */ | ||