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29 | #include <arch/arch.h> |
29 | #include <arch/arch.h> |
30 | 30 | ||
31 | #define DCACHE_SIZE (16*1024) |
31 | #define DCACHE_SIZE (16 * 1024) |
32 | #define DCACHE_LINE_SIZE 32 |
32 | #define DCACHE_LINE_SIZE 32 |
33 | 33 | ||
- | 34 | #define DCACHE_TAG_SHIFT 2 |
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- | 35 | ||
- | 36 | .register %g2, #scratch |
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- | 37 | .register %g3, #scratch |
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- | 38 | ||
- | 39 | /** Flush the whole D-cache. */ |
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34 | .global dcache_flush |
40 | .global dcache_flush |
35 | dcache_flush: |
41 | dcache_flush: |
36 | set (DCACHE_SIZE - DCACHE_LINE_SIZE), %g1 |
42 | set (DCACHE_SIZE - DCACHE_LINE_SIZE), %g1 |
37 | stxa %g0, [%g1] ASI_DCACHE_TAG |
43 | stxa %g0, [%g1] ASI_DCACHE_TAG |
38 | 0: membar #Sync |
44 | 0: membar #Sync |
Line 40... | Line 46... | ||
40 | bnz,pt %xcc, 0b |
46 | bnz,pt %xcc, 0b |
41 | stxa %g0, [%g1] ASI_DCACHE_TAG |
47 | stxa %g0, [%g1] ASI_DCACHE_TAG |
42 | retl |
48 | retl |
43 | membar #Sync |
49 | membar #Sync |
44 | 50 | ||
- | 51 | /** Flush only D-cache lines of one virtual color. |
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- | 52 | * |
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- | 53 | * @param o0 Virtual color to be flushed. |
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- | 54 | */ |
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- | 55 | .global dcache_flush_color |
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- | 56 | dcache_flush_color: |
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- | 57 | mov (DCACHE_SIZE / DCACHE_LINE_SIZE) / 2, %g1 |
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- | 58 | set DCACHE_SIZE / 2, %g2 |
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- | 59 | sllx %g2, %o0, %g2 |
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- | 60 | sub %g2, DCACHE_LINE_SIZE, %g2 |
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- | 61 | 0: stxa %g0, [%g2] ASI_DCACHE_TAG |
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- | 62 | membar #Sync |
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- | 63 | subcc %g1, 1, %g1 |
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- | 64 | bnz,pt %xcc, 0b |
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- | 65 | sub %g2, DCACHE_LINE_SIZE, %g2 |
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- | 66 | retl |
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- | 67 | nop |
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- | 68 | ||
- | 69 | /** Flush only D-cache lines of one virtual color and one tag. |
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- | 70 | * |
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- | 71 | * @param o0 Virtual color to lookup the tag. |
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- | 72 | * @param o1 Tag of the cachelines to be flushed. |
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- | 73 | */ |
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- | 74 | .global dcache_flush_tag |
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- | 75 | dcache_flush_tag: |
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- | 76 | mov (DCACHE_SIZE / DCACHE_LINE_SIZE) / 2, %g1 |
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- | 77 | set DCACHE_SIZE / 2, %g2 |
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- | 78 | sllx %g2, %o0, %g2 |
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- | 79 | sub %g2, DCACHE_LINE_SIZE, %g2 |
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- | 80 | 0: ldxa [%g2] ASI_DCACHE_TAG, %g3 |
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- | 81 | srlx %g3, DCACHE_TAG_SHIFT, %g3 |
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- | 82 | cmp %g3, %o1 |
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- | 83 | bnz 1f |
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- | 84 | nop |
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- | 85 | stxa %g0, [%g2] ASI_DCACHE_TAG |
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- | 86 | membar #Sync |
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- | 87 | 1: subcc %g1, 1, %g1 |
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- | 88 | bnz,pt %xcc, 0b |
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- | 89 | sub %g2, DCACHE_LINE_SIZE, %g2 |
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- | 90 | retl |
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- | 91 | nop |