diff options
Diffstat (limited to 'arch/cris/include/arch-v32/arch/tlb.h')
| -rw-r--r-- | arch/cris/include/arch-v32/arch/tlb.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/cris/include/arch-v32/arch/tlb.h b/arch/cris/include/arch-v32/arch/tlb.h new file mode 100644 index 0000000..4effb12 --- /dev/null +++ b/arch/cris/include/arch-v32/arch/tlb.h @@ -0,0 +1,14 @@ +#ifndef _CRIS_ARCH_TLB_H +#define _CRIS_ARCH_TLB_H + +/* + * The TLB is a 64-entry cache. Each entry has a 8-bit page_id that is used + * to store the "process" it belongs to (=> fast mm context switch). The + * last page_id is never used so we can make TLB entries that never matches. + */ +#define NUM_TLB_ENTRIES 64 +#define NUM_PAGEID 256 +#define INVALID_PAGEID 255 +#define NO_CONTEXT -1 + +#endif /* _CRIS_ARCH_TLB_H */ |
