diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-arm26/tlbflush.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/asm-arm26/tlbflush.h')
-rw-r--r-- | include/asm-arm26/tlbflush.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/include/asm-arm26/tlbflush.h b/include/asm-arm26/tlbflush.h new file mode 100644 index 000000000000..f79c1cbf4f69 --- /dev/null +++ b/include/asm-arm26/tlbflush.h | |||
@@ -0,0 +1,70 @@ | |||
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 | ||