diff options
Diffstat (limited to 'arch/cris/mm/tlb.c')
| -rw-r--r-- | arch/cris/mm/tlb.c | 30 |
1 files changed, 9 insertions, 21 deletions
diff --git a/arch/cris/mm/tlb.c b/arch/cris/mm/tlb.c index 23eca5ad738..b7f8de57677 100644 --- a/arch/cris/mm/tlb.c +++ b/arch/cris/mm/tlb.c @@ -8,6 +8,7 @@ */ #include <linux/init.h> +#include <linux/kernel.h> #include <asm/tlb.h> #define D(x) @@ -15,7 +16,7 @@ /* The TLB can host up to 64 different mm contexts at the same time. * The running context is R_MMU_CONTEXT, and each TLB entry contains a * page_id that has to match to give a hit. In page_id_map, we keep track - * of which mm's we have assigned which page_id's, so that we know when + * of which mm we have assigned to which page_id, so that we know when * to invalidate TLB entries. * * The last page_id is never running - it is used as an invalid page_id @@ -29,18 +30,6 @@ struct mm_struct *page_id_map[NUM_PAGEID]; static int map_replace_ptr = 1; /* which page_id_map entry to replace next */ -/* - * Initialize the context related info for a new mm_struct - * instance. - */ - -int -init_new_context(struct task_struct *tsk, struct mm_struct *mm) -{ - mm->context = NO_CONTEXT; - return 0; -} - /* the following functions are similar to those used in the PPC port */ static inline void @@ -60,12 +49,12 @@ alloc_context(struct mm_struct *mm) */ flush_tlb_mm(old_mm); - old_mm->context = NO_CONTEXT; + old_mm->context.page_id = NO_CONTEXT; } /* insert it into the page_id_map */ - mm->context = map_replace_ptr; + mm->context.page_id = map_replace_ptr; page_id_map[map_replace_ptr] = mm; map_replace_ptr++; @@ -81,7 +70,7 @@ alloc_context(struct mm_struct *mm) void get_mmu_context(struct mm_struct *mm) { - if(mm->context == NO_CONTEXT) + if(mm->context.page_id == NO_CONTEXT) alloc_context(mm); } @@ -96,11 +85,10 @@ get_mmu_context(struct mm_struct *mm) void destroy_context(struct mm_struct *mm) { - if(mm->context != NO_CONTEXT) { - D(printk("destroy_context %d (%p)\n", mm->context, mm)); + if(mm->context.page_id != NO_CONTEXT) { + D(printk("destroy_context %d (%p)\n", mm->context.page_id, mm)); flush_tlb_mm(mm); /* TODO this might be redundant ? */ - page_id_map[mm->context] = NULL; - /* mm->context = NO_CONTEXT; redundant.. mm will be freed */ + page_id_map[mm->context.page_id] = NULL; } } @@ -113,7 +101,7 @@ tlb_init(void) /* clear the page_id map */ - for (i = 1; i < sizeof (page_id_map) / sizeof (page_id_map[0]); i++) + for (i = 1; i < ARRAY_SIZE(page_id_map); i++) page_id_map[i] = NULL; /* invalidate the entire TLB */ |