diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-sparc64/mmu.h | 13 | ||||
| -rw-r--r-- | include/asm-sparc64/mmu_context.h | 15 | ||||
| -rw-r--r-- | include/asm-sparc64/tsb.h | 2 |
3 files changed, 24 insertions, 6 deletions
diff --git a/include/asm-sparc64/mmu.h b/include/asm-sparc64/mmu.h index 36384cf7faa6..2effeba2476c 100644 --- a/include/asm-sparc64/mmu.h +++ b/include/asm-sparc64/mmu.h @@ -90,9 +90,20 @@ #ifndef __ASSEMBLY__ +#define TSB_ENTRY_ALIGNMENT 16 + +struct tsb { + unsigned long tag; + unsigned long pte; +} __attribute__((aligned(TSB_ENTRY_ALIGNMENT))); + typedef struct { unsigned long sparc64_ctx_val; - unsigned long *sparc64_tsb; + struct tsb *tsb; + unsigned long tsb_nentries; + unsigned long tsb_reg_val; + unsigned long tsb_map_vaddr; + unsigned long tsb_map_pte; } mm_context_t; #endif /* !__ASSEMBLY__ */ diff --git a/include/asm-sparc64/mmu_context.h b/include/asm-sparc64/mmu_context.h index 0dffb4ce8a1d..0a950f151d2b 100644 --- a/include/asm-sparc64/mmu_context.h +++ b/include/asm-sparc64/mmu_context.h @@ -22,7 +22,15 @@ extern void get_new_mmu_context(struct mm_struct *mm); extern int init_new_context(struct task_struct *tsk, struct mm_struct *mm); extern void destroy_context(struct mm_struct *mm); -extern unsigned long tsb_context_switch(unsigned long pgd_pa, unsigned long *tsb); +extern void __tsb_context_switch(unsigned long pgd_pa, unsigned long tsb_reg, + unsigned long tsb_vaddr, unsigned long tsb_pte); + +static inline void tsb_context_switch(struct mm_struct *mm) +{ + __tsb_context_switch(__pa(mm->pgd), mm->context.tsb_reg_val, + mm->context.tsb_map_vaddr, + mm->context.tsb_map_pte); +} /* Set MMU context in the actual hardware. */ #define load_secondary_context(__mm) \ @@ -52,8 +60,7 @@ static inline void switch_mm(struct mm_struct *old_mm, struct mm_struct *mm, str if (!ctx_valid || (old_mm != mm)) { load_secondary_context(mm); - tsb_context_switch(__pa(mm->pgd), - mm->context.sparc64_tsb); + tsb_context_switch(mm); } /* Even if (mm == old_mm) we _must_ check @@ -91,7 +98,7 @@ static inline void activate_mm(struct mm_struct *active_mm, struct mm_struct *mm load_secondary_context(mm); __flush_tlb_mm(CTX_HWBITS(mm->context), SECONDARY_CONTEXT); - tsb_context_switch(__pa(mm->pgd), mm->context.sparc64_tsb); + tsb_context_switch(mm); } #endif /* !(__ASSEMBLY__) */ diff --git a/include/asm-sparc64/tsb.h b/include/asm-sparc64/tsb.h index 03d272e0e477..1f93b7d8cdbc 100644 --- a/include/asm-sparc64/tsb.h +++ b/include/asm-sparc64/tsb.h @@ -19,7 +19,7 @@ * stxa %g5, [%g0] ASI_{D,I}TLB_DATA_IN * retry * - + * * Each 16-byte slot of the TSB is the 8-byte tag and then the 8-byte * PTE. The TAG is of the same layout as the TLB TAG TARGET mmu * register which is: |