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| author | David S. Miller <davem@davemloft.net> | 2006-03-22 09:49:59 +0100 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-03-22 10:15:14 +0100 |
| commit | dcc1e8dd88d4bc55e32a26dad7633d20ffe606d2 (patch) | |
| tree | a47592213d94f918867d3dd81bb91dac3e727dea /include/asm-sparc64/mmu.h | |
| parent | [SPARC]: Respect vm_page_prot in io_remap_page_range(). (diff) | |
| download | linux-dcc1e8dd88d4bc55e32a26dad7633d20ffe606d2.tar.xz linux-dcc1e8dd88d4bc55e32a26dad7633d20ffe606d2.zip | |
[SPARC64]: Add a secondary TSB for hugepage mappings.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/asm-sparc64/mmu.h')
| -rw-r--r-- | include/asm-sparc64/mmu.h | 29 |
1 files changed, 25 insertions, 4 deletions
diff --git a/include/asm-sparc64/mmu.h b/include/asm-sparc64/mmu.h index 230ba678d3b0..2d4f2ea9568a 100644 --- a/include/asm-sparc64/mmu.h +++ b/include/asm-sparc64/mmu.h @@ -90,18 +90,39 @@ extern void __tsb_insert(unsigned long ent, unsigned long tag, unsigned long pte extern void tsb_flush(unsigned long ent, unsigned long tag); extern void tsb_init(struct tsb *tsb, unsigned long size); -typedef struct { - spinlock_t lock; - unsigned long sparc64_ctx_val; +struct tsb_config { struct tsb *tsb; unsigned long tsb_rss_limit; unsigned long tsb_nentries; unsigned long tsb_reg_val; unsigned long tsb_map_vaddr; unsigned long tsb_map_pte; - struct hv_tsb_descr tsb_descr; +}; + +#define MM_TSB_BASE 0 + +#ifdef CONFIG_HUGETLB_PAGE +#define MM_TSB_HUGE 1 +#define MM_NUM_TSBS 2 +#else +#define MM_NUM_TSBS 1 +#endif + +typedef struct { + spinlock_t lock; + unsigned long sparc64_ctx_val; + unsigned long huge_pte_count; + struct tsb_config tsb_block[MM_NUM_TSBS]; + struct hv_tsb_descr tsb_descr[MM_NUM_TSBS]; } mm_context_t; #endif /* !__ASSEMBLY__ */ +#define TSB_CONFIG_TSB 0x00 +#define TSB_CONFIG_RSS_LIMIT 0x08 +#define TSB_CONFIG_NENTRIES 0x10 +#define TSB_CONFIG_REG_VAL 0x18 +#define TSB_CONFIG_MAP_VADDR 0x20 +#define TSB_CONFIG_MAP_PTE 0x28 + #endif /* __MMU_H */ |