diff options
Diffstat (limited to 'include/asm-sh/system_32.h')
| -rw-r--r-- | include/asm-sh/system_32.h | 36 |
1 files changed, 19 insertions, 17 deletions
diff --git a/include/asm-sh/system_32.h b/include/asm-sh/system_32.h index ad37e8d5f31e..e918bacd5ecf 100644 --- a/include/asm-sh/system_32.h +++ b/include/asm-sh/system_32.h | |||
| @@ -58,29 +58,31 @@ do { \ | |||
| 58 | last = __last; \ | 58 | last = __last; \ |
| 59 | } while (0) | 59 | } while (0) |
| 60 | 60 | ||
| 61 | #define __uses_jump_to_uncached __attribute__ ((__section__ (".uncached.text"))) | ||
| 62 | |||
| 61 | /* | 63 | /* |
| 62 | * Jump to P2 area. | 64 | * Jump to uncached area. |
| 63 | * When handling TLB or caches, we need to do it from P2 area. | 65 | * When handling TLB or caches, we need to do it from an uncached area. |
| 64 | */ | 66 | */ |
| 65 | #define jump_to_P2() \ | 67 | #define jump_to_uncached() \ |
| 66 | do { \ | 68 | do { \ |
| 67 | unsigned long __dummy; \ | 69 | unsigned long __dummy; \ |
| 68 | __asm__ __volatile__( \ | 70 | \ |
| 69 | "mov.l 1f, %0\n\t" \ | 71 | __asm__ __volatile__( \ |
| 70 | "or %1, %0\n\t" \ | 72 | "mova 1f, %0\n\t" \ |
| 71 | "jmp @%0\n\t" \ | 73 | "add %1, %0\n\t" \ |
| 72 | " nop\n\t" \ | 74 | "jmp @%0\n\t" \ |
| 73 | ".balign 4\n" \ | 75 | " nop\n\t" \ |
| 74 | "1: .long 2f\n" \ | 76 | ".balign 4\n" \ |
| 75 | "2:" \ | 77 | "1:" \ |
| 76 | : "=&r" (__dummy) \ | 78 | : "=&z" (__dummy) \ |
| 77 | : "r" (0x20000000)); \ | 79 | : "r" (cached_to_uncached)); \ |
| 78 | } while (0) | 80 | } while (0) |
| 79 | 81 | ||
| 80 | /* | 82 | /* |
| 81 | * Back to P1 area. | 83 | * Back to cached area. |
| 82 | */ | 84 | */ |
| 83 | #define back_to_P1() \ | 85 | #define back_to_cached() \ |
| 84 | do { \ | 86 | do { \ |
| 85 | unsigned long __dummy; \ | 87 | unsigned long __dummy; \ |
| 86 | ctrl_barrier(); \ | 88 | ctrl_barrier(); \ |