| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef __ASMARM_TLBFLUSH_H |
| 2 | #define __ASMARM_TLBFLUSH_H |
| 3 | |
| 4 | /* |
| 5 | * TLB flushing: |
| 6 | * |
| 7 | * - flush_tlb_all() flushes all processes TLBs |
| 8 | * - flush_tlb_mm(mm) flushes the specified mm context TLB's |
| 9 | * - flush_tlb_page(vma, vmaddr) flushes one page |
| 10 | * - flush_tlb_range(vma, start, end) flushes a range of pages |
| 11 | */ |
| 12 | |
| 13 | #define flush_tlb_all() memc_update_all() |
| 14 | #define flush_tlb_mm(mm) memc_update_mm(mm) |
| 15 | #define flush_tlb_page(vma, vmaddr) do { printk("flush_tlb_page\n");} while (0) // IS THIS RIGHT? |
| 16 | #define flush_tlb_range(vma,start,end) \ |
| 17 | do { memc_update_mm(vma->vm_mm); (void)(start); (void)(end); } while (0) |
| 18 | #define flush_tlb_pgtables(mm,start,end) do { printk("flush_tlb_pgtables\n");} while (0) |
| 19 | #define flush_tlb_kernel_range(s,e) do { printk("flush_tlb_range\n");} while (0) |
| 20 | |
| 21 | /* |
| 22 | * The following handle the weird MEMC chip |
| 23 | */ |
| 24 | static inline void memc_update_all(void) |
| 25 | { |
| 26 | struct task_struct *p; |
| 27 | cpu_memc_update_all(init_mm.pgd); |
| 28 | for_each_process(p) { |
| 29 | if (!p->mm) |
| 30 | continue; |
| 31 | cpu_memc_update_all(p->mm->pgd); |
| 32 | } |
| 33 | processor._set_pgd(current->active_mm->pgd); |
| 34 | } |
| 35 | |
| 36 | static inline void memc_update_mm(struct mm_struct *mm) |
| 37 | { |
| 38 | cpu_memc_update_all(mm->pgd); |
| 39 | |
| 40 | if (mm == current->active_mm) |
| 41 | processor._set_pgd(mm->pgd); |
| 42 | } |
| 43 | |
| 44 | static inline void |
| 45 | memc_clear(struct mm_struct *mm, struct page *page) |
| 46 | { |
| 47 | cpu_memc_update_entry(mm->pgd, (unsigned long) page_address(page), 0); |
| 48 | |
| 49 | if (mm == current->active_mm) |
| 50 | processor._set_pgd(mm->pgd); |
| 51 | } |
| 52 | |
| 53 | static inline void |
| 54 | memc_update_addr(struct mm_struct *mm, pte_t pte, unsigned long vaddr) |
| 55 | { |
| 56 | cpu_memc_update_entry(mm->pgd, pte_val(pte), vaddr); |
| 57 | |
| 58 | if (mm == current->active_mm) |
| 59 | processor._set_pgd(mm->pgd); |
| 60 | } |
| 61 | |
| 62 | static inline void |
| 63 | update_mmu_cache(struct vm_area_struct *vma, unsigned long addr, pte_t pte) |
| 64 | { |
| 65 | struct mm_struct *mm = vma->vm_mm; |
| 66 | printk("update_mmu_cache\n"); |
| 67 | memc_update_addr(mm, pte, addr); |
| 68 | } |
| 69 | |
| 70 | #endif |