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| 46 | void tlb_invalidate_all(void) |
46 | void tlb_invalidate_all(void) |
| 47 | { |
47 | { |
| 48 | asm volatile ( |
48 | asm volatile ( |
| 49 | "eor r1, r1\n" |
49 | "eor r1, r1\n" |
| 50 | "mcr p15, 0, r1, c8, c7, 0\n" |
50 | "mcr p15, 0, r1, c8, c7, 0\n" |
| 51 | ::: "r1" |
51 | : : : "r1" |
| 52 | ); |
52 | ); |
| 53 | } |
53 | } |
| 54 | 54 | ||
| 55 | - | ||
| 56 | /** Invalidate all entries in TLB that belong to specified address space. |
55 | /** Invalidate all entries in TLB that belong to specified address space. |
| 57 | * |
56 | * |
| 58 | * @param asid Ignored as the ARM architecture doesn't support ASIDs. |
57 | * @param asid Ignored as the ARM architecture doesn't support ASIDs. |
| 59 | */ |
58 | */ |
| 60 | void tlb_invalidate_asid(asid_t asid) |
59 | void tlb_invalidate_asid(asid_t asid) |
| 61 | { |
60 | { |
| 62 | tlb_invalidate_all(); |
61 | tlb_invalidate_all(); |
| 63 | } |
62 | } |
| 64 | 63 | ||
| 65 | - | ||
| 66 | /** Invalidate single entry in TLB |
64 | /** Invalidate single entry in TLB |
| 67 | * |
65 | * |
| 68 | * @param page Virtual adress of the page |
66 | * @param page Virtual adress of the page |
| 69 | */ |
67 | */ |
| 70 | static inline void invalidate_page(uintptr_t page) |
68 | static inline void invalidate_page(uintptr_t page) |
| 71 | { |
69 | { |
| 72 | asm volatile ( |
70 | asm volatile ( |
| 73 | "mcr p15, 0, %0, c8, c7, 1" |
71 | "mcr p15, 0, %0, c8, c7, 1" |
| 74 | - | ||
| 75 | : |
72 | : |
| 76 | : "r"(page) |
73 | : "r" (page) |
| 77 | ); |
74 | ); |
| 78 | } |
75 | } |
| 79 | 76 | ||
| 80 | - | ||
| 81 | /** Invalidate TLB entries for specified page range belonging to specified address space. |
77 | /** Invalidate TLB entries for specified page range belonging to specified |
| - | 78 | * address space. |
|
| 82 | * |
79 | * |
| 83 | * @param asid Ignored as the ARM architecture doesn't support it. |
80 | * @param asid Ignored as the ARM architecture doesn't support it. |
| 84 | * @param page Address of the first page whose entry is to be invalidated. |
81 | * @param page Address of the first page whose entry is to be invalidated. |
| 85 | * @param cnt Number of entries to invalidate. |
82 | * @param cnt Number of entries to invalidate. |
| 86 | */ |
83 | */ |