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| 27 | */ |
27 | */ |
| 28 | 28 | ||
| 29 | #ifndef __sparc64_CONTEXT_H__ |
29 | #ifndef __sparc64_CONTEXT_H__ |
| 30 | #define __sparc64_CONTEXT_H__ |
30 | #define __sparc64_CONTEXT_H__ |
| 31 | 31 | ||
| - | 32 | #include <arch/stack.h> |
|
| - | 33 | ||
| 32 | #ifndef __sparc64_TYPES_H__ |
34 | #ifndef __sparc64_TYPES_H__ |
| 33 | # include <arch/types.h> |
35 | # include <arch/types.h> |
| 34 | #endif |
36 | #endif |
| 35 | 37 | ||
| 36 | #ifndef __ALIGN_H__ |
38 | #ifndef __ALIGN_H__ |
| 37 | # include <align.h> |
39 | # include <align.h> |
| 38 | #endif |
40 | #endif |
| 39 | 41 | ||
| 40 | /** According to SPARC Compliance Definition, every stack frame is 16-byte aligned. */ |
- | |
| 41 | #define STACK_ALIGNMENT 16 |
- | |
| 42 | - | ||
| 43 | #define STACK_ITEM_SIZE sizeof(__u64) |
- | |
| 44 | - | ||
| 45 | /** |
- | |
| 46 | * 16-extended-word save area for %i[0-7] and %l[0-7] registers. |
- | |
| 47 | */ |
- | |
| 48 | #define SAVE_AREA (16*STACK_ITEM_SIZE) |
- | |
| 49 | #define SP_DELTA SAVE_AREA |
42 | #define SP_DELTA STACK_WINDOW_SAVE_AREA_SIZE |
| 50 | - | ||
| 51 | /** |
- | |
| 52 | * By convention, the actual top of the stack is %sp + BIAS. |
- | |
| 53 | */ |
- | |
| 54 | #define BIAS 2047 |
- | |
| 55 | 43 | ||
| 56 | #ifdef context_set |
44 | #ifdef context_set |
| 57 | #undef context_set |
45 | #undef context_set |
| 58 | #endif |
46 | #endif |
| 59 | 47 | ||
| 60 | #define context_set(c, _pc, stack, size) \ |
48 | #define context_set(c, _pc, stack, size) \ |
| 61 | (c)->pc = ((__address) _pc) - 8; \ |
49 | (c)->pc = ((__address) _pc) - 8; \ |
| 62 | (c)->sp = ((__address) stack) + ALIGN((size), STACK_ALIGNMENT) - (BIAS + SP_DELTA) |
50 | (c)->sp = ((__address) stack) + ALIGN((size), STACK_ALIGNMENT) - (STACK_BIAS + SP_DELTA) |
| 63 | 51 | ||
| 64 | /* |
52 | /* |
| 65 | * Only save registers that must be preserved across |
53 | * Only save registers that must be preserved across |
| 66 | * function calls. |
54 | * function calls. |
| 67 | */ |
55 | */ |