| bitops.S (e5451c8f8330e03ad3cfa16048b4daf961af434f) | bitops.S (d3867f0483103b8ff7edfdea3ef1981c03d96891) |
|---|---|
| 1/* bitops.S: Sparc64 atomic bit operations. 2 * 3 * Copyright (C) 2000, 2007 David S. Miller (davem@davemloft.net) 4 */ 5 6#include <linux/linkage.h> 7#include <asm/asi.h> 8#include <asm/backoff.h> | 1/* bitops.S: Sparc64 atomic bit operations. 2 * 3 * Copyright (C) 2000, 2007 David S. Miller (davem@davemloft.net) 4 */ 5 6#include <linux/linkage.h> 7#include <asm/asi.h> 8#include <asm/backoff.h> |
| 9#include <asm/export.h> |
|
| 9 10 .text 11 12ENTRY(test_and_set_bit) /* %o0=nr, %o1=addr */ 13 BACKOFF_SETUP(%o3) 14 srlx %o0, 6, %g1 15 mov 1, %o2 16 sllx %g1, 3, %g3 --- 7 unchanged lines hidden (view full) --- 24 bne,pn %xcc, BACKOFF_LABEL(2f, 1b) 25 and %g7, %o2, %g2 26 clr %o0 27 movrne %g2, 1, %o0 28 retl 29 nop 302: BACKOFF_SPIN(%o3, %o4, 1b) 31ENDPROC(test_and_set_bit) | 10 11 .text 12 13ENTRY(test_and_set_bit) /* %o0=nr, %o1=addr */ 14 BACKOFF_SETUP(%o3) 15 srlx %o0, 6, %g1 16 mov 1, %o2 17 sllx %g1, 3, %g3 --- 7 unchanged lines hidden (view full) --- 25 bne,pn %xcc, BACKOFF_LABEL(2f, 1b) 26 and %g7, %o2, %g2 27 clr %o0 28 movrne %g2, 1, %o0 29 retl 30 nop 312: BACKOFF_SPIN(%o3, %o4, 1b) 32ENDPROC(test_and_set_bit) |
| 33EXPORT_SYMBOL(test_and_set_bit) |
|
| 32 33ENTRY(test_and_clear_bit) /* %o0=nr, %o1=addr */ 34 BACKOFF_SETUP(%o3) 35 srlx %o0, 6, %g1 36 mov 1, %o2 37 sllx %g1, 3, %g3 38 and %o0, 63, %g2 39 sllx %o2, %g2, %o2 --- 5 unchanged lines hidden (view full) --- 45 bne,pn %xcc, BACKOFF_LABEL(2f, 1b) 46 and %g7, %o2, %g2 47 clr %o0 48 movrne %g2, 1, %o0 49 retl 50 nop 512: BACKOFF_SPIN(%o3, %o4, 1b) 52ENDPROC(test_and_clear_bit) | 34 35ENTRY(test_and_clear_bit) /* %o0=nr, %o1=addr */ 36 BACKOFF_SETUP(%o3) 37 srlx %o0, 6, %g1 38 mov 1, %o2 39 sllx %g1, 3, %g3 40 and %o0, 63, %g2 41 sllx %o2, %g2, %o2 --- 5 unchanged lines hidden (view full) --- 47 bne,pn %xcc, BACKOFF_LABEL(2f, 1b) 48 and %g7, %o2, %g2 49 clr %o0 50 movrne %g2, 1, %o0 51 retl 52 nop 532: BACKOFF_SPIN(%o3, %o4, 1b) 54ENDPROC(test_and_clear_bit) |
| 55EXPORT_SYMBOL(test_and_clear_bit) |
|
| 53 54ENTRY(test_and_change_bit) /* %o0=nr, %o1=addr */ 55 BACKOFF_SETUP(%o3) 56 srlx %o0, 6, %g1 57 mov 1, %o2 58 sllx %g1, 3, %g3 59 and %o0, 63, %g2 60 sllx %o2, %g2, %o2 --- 5 unchanged lines hidden (view full) --- 66 bne,pn %xcc, BACKOFF_LABEL(2f, 1b) 67 and %g7, %o2, %g2 68 clr %o0 69 movrne %g2, 1, %o0 70 retl 71 nop 722: BACKOFF_SPIN(%o3, %o4, 1b) 73ENDPROC(test_and_change_bit) | 56 57ENTRY(test_and_change_bit) /* %o0=nr, %o1=addr */ 58 BACKOFF_SETUP(%o3) 59 srlx %o0, 6, %g1 60 mov 1, %o2 61 sllx %g1, 3, %g3 62 and %o0, 63, %g2 63 sllx %o2, %g2, %o2 --- 5 unchanged lines hidden (view full) --- 69 bne,pn %xcc, BACKOFF_LABEL(2f, 1b) 70 and %g7, %o2, %g2 71 clr %o0 72 movrne %g2, 1, %o0 73 retl 74 nop 752: BACKOFF_SPIN(%o3, %o4, 1b) 76ENDPROC(test_and_change_bit) |
| 77EXPORT_SYMBOL(test_and_change_bit) |
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| 74 75ENTRY(set_bit) /* %o0=nr, %o1=addr */ 76 BACKOFF_SETUP(%o3) 77 srlx %o0, 6, %g1 78 mov 1, %o2 79 sllx %g1, 3, %g3 80 and %o0, 63, %g2 81 sllx %o2, %g2, %o2 82 add %o1, %g3, %o1 831: ldx [%o1], %g7 84 or %g7, %o2, %g1 85 casx [%o1], %g7, %g1 86 cmp %g7, %g1 87 bne,pn %xcc, BACKOFF_LABEL(2f, 1b) 88 nop 89 retl 90 nop 912: BACKOFF_SPIN(%o3, %o4, 1b) 92ENDPROC(set_bit) | 78 79ENTRY(set_bit) /* %o0=nr, %o1=addr */ 80 BACKOFF_SETUP(%o3) 81 srlx %o0, 6, %g1 82 mov 1, %o2 83 sllx %g1, 3, %g3 84 and %o0, 63, %g2 85 sllx %o2, %g2, %o2 86 add %o1, %g3, %o1 871: ldx [%o1], %g7 88 or %g7, %o2, %g1 89 casx [%o1], %g7, %g1 90 cmp %g7, %g1 91 bne,pn %xcc, BACKOFF_LABEL(2f, 1b) 92 nop 93 retl 94 nop 952: BACKOFF_SPIN(%o3, %o4, 1b) 96ENDPROC(set_bit) |
| 97EXPORT_SYMBOL(set_bit) |
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| 93 94ENTRY(clear_bit) /* %o0=nr, %o1=addr */ 95 BACKOFF_SETUP(%o3) 96 srlx %o0, 6, %g1 97 mov 1, %o2 98 sllx %g1, 3, %g3 99 and %o0, 63, %g2 100 sllx %o2, %g2, %o2 101 add %o1, %g3, %o1 1021: ldx [%o1], %g7 103 andn %g7, %o2, %g1 104 casx [%o1], %g7, %g1 105 cmp %g7, %g1 106 bne,pn %xcc, BACKOFF_LABEL(2f, 1b) 107 nop 108 retl 109 nop 1102: BACKOFF_SPIN(%o3, %o4, 1b) 111ENDPROC(clear_bit) | 98 99ENTRY(clear_bit) /* %o0=nr, %o1=addr */ 100 BACKOFF_SETUP(%o3) 101 srlx %o0, 6, %g1 102 mov 1, %o2 103 sllx %g1, 3, %g3 104 and %o0, 63, %g2 105 sllx %o2, %g2, %o2 106 add %o1, %g3, %o1 1071: ldx [%o1], %g7 108 andn %g7, %o2, %g1 109 casx [%o1], %g7, %g1 110 cmp %g7, %g1 111 bne,pn %xcc, BACKOFF_LABEL(2f, 1b) 112 nop 113 retl 114 nop 1152: BACKOFF_SPIN(%o3, %o4, 1b) 116ENDPROC(clear_bit) |
| 117EXPORT_SYMBOL(clear_bit) |
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| 112 113ENTRY(change_bit) /* %o0=nr, %o1=addr */ 114 BACKOFF_SETUP(%o3) 115 srlx %o0, 6, %g1 116 mov 1, %o2 117 sllx %g1, 3, %g3 118 and %o0, 63, %g2 119 sllx %o2, %g2, %o2 120 add %o1, %g3, %o1 1211: ldx [%o1], %g7 122 xor %g7, %o2, %g1 123 casx [%o1], %g7, %g1 124 cmp %g7, %g1 125 bne,pn %xcc, BACKOFF_LABEL(2f, 1b) 126 nop 127 retl 128 nop 1292: BACKOFF_SPIN(%o3, %o4, 1b) 130ENDPROC(change_bit) | 118 119ENTRY(change_bit) /* %o0=nr, %o1=addr */ 120 BACKOFF_SETUP(%o3) 121 srlx %o0, 6, %g1 122 mov 1, %o2 123 sllx %g1, 3, %g3 124 and %o0, 63, %g2 125 sllx %o2, %g2, %o2 126 add %o1, %g3, %o1 1271: ldx [%o1], %g7 128 xor %g7, %o2, %g1 129 casx [%o1], %g7, %g1 130 cmp %g7, %g1 131 bne,pn %xcc, BACKOFF_LABEL(2f, 1b) 132 nop 133 retl 134 nop 1352: BACKOFF_SPIN(%o3, %o4, 1b) 136ENDPROC(change_bit) |
| 137EXPORT_SYMBOL(change_bit) |
|