diff options
Diffstat (limited to 'arch/sh/mm/tlb-sh4.c')
-rw-r--r-- | arch/sh/mm/tlb-sh4.c | 37 |
1 files changed, 11 insertions, 26 deletions
diff --git a/arch/sh/mm/tlb-sh4.c b/arch/sh/mm/tlb-sh4.c index f0c7b7397fa6..8cf550e2570f 100644 --- a/arch/sh/mm/tlb-sh4.c +++ b/arch/sh/mm/tlb-sh4.c | |||
@@ -15,34 +15,16 @@ | |||
15 | #include <asm/mmu_context.h> | 15 | #include <asm/mmu_context.h> |
16 | #include <asm/cacheflush.h> | 16 | #include <asm/cacheflush.h> |
17 | 17 | ||
18 | void update_mmu_cache(struct vm_area_struct * vma, | 18 | void __update_tlb(struct vm_area_struct *vma, unsigned long address, pte_t pte) |
19 | unsigned long address, pte_t pte) | ||
20 | { | 19 | { |
21 | unsigned long flags; | 20 | unsigned long flags, pteval, vpn; |
22 | unsigned long pteval; | ||
23 | unsigned long vpn; | ||
24 | 21 | ||
25 | /* Ptrace may call this routine. */ | 22 | /* |
23 | * Handle debugger faulting in for debugee. | ||
24 | */ | ||
26 | if (vma && current->active_mm != vma->vm_mm) | 25 | if (vma && current->active_mm != vma->vm_mm) |
27 | return; | 26 | return; |
28 | 27 | ||
29 | #ifndef CONFIG_CACHE_OFF | ||
30 | { | ||
31 | unsigned long pfn = pte_pfn(pte); | ||
32 | |||
33 | if (pfn_valid(pfn)) { | ||
34 | struct page *page = pfn_to_page(pfn); | ||
35 | |||
36 | if (!test_bit(PG_mapped, &page->flags)) { | ||
37 | unsigned long phys = pte_val(pte) & PTE_PHYS_MASK; | ||
38 | __flush_wback_region((void *)P1SEGADDR(phys), | ||
39 | PAGE_SIZE); | ||
40 | __set_bit(PG_mapped, &page->flags); | ||
41 | } | ||
42 | } | ||
43 | } | ||
44 | #endif | ||
45 | |||
46 | local_irq_save(flags); | 28 | local_irq_save(flags); |
47 | 29 | ||
48 | /* Set PTEH register */ | 30 | /* Set PTEH register */ |
@@ -61,9 +43,12 @@ void update_mmu_cache(struct vm_area_struct * vma, | |||
61 | */ | 43 | */ |
62 | ctrl_outl(pte.pte_high, MMU_PTEA); | 44 | ctrl_outl(pte.pte_high, MMU_PTEA); |
63 | #else | 45 | #else |
64 | if (cpu_data->flags & CPU_HAS_PTEA) | 46 | if (cpu_data->flags & CPU_HAS_PTEA) { |
65 | /* TODO: make this look less hacky */ | 47 | /* The last 3 bits and the first one of pteval contains |
66 | ctrl_outl(((pteval >> 28) & 0xe) | (pteval & 0x1), MMU_PTEA); | 48 | * the PTEA timing control and space attribute bits |
49 | */ | ||
50 | ctrl_outl(copy_ptea_attributes(pteval), MMU_PTEA); | ||
51 | } | ||
67 | #endif | 52 | #endif |
68 | 53 | ||
69 | /* Set PTEL register */ | 54 | /* Set PTEL register */ |