Rev 2076 | Rev 2252 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2008 | jermar | 1 | /* |
| 2071 | jermar | 2 | * Copyright (c) 2006 Jakub Jermar |
| 2008 | jermar | 3 | * All rights reserved. |
| 4 | * |
||
| 5 | * Redistribution and use in source and binary forms, with or without |
||
| 6 | * modification, are permitted provided that the following conditions |
||
| 7 | * are met: |
||
| 8 | * |
||
| 9 | * - Redistributions of source code must retain the above copyright |
||
| 10 | * notice, this list of conditions and the following disclaimer. |
||
| 11 | * - Redistributions in binary form must reproduce the above copyright |
||
| 12 | * notice, this list of conditions and the following disclaimer in the |
||
| 13 | * documentation and/or other materials provided with the distribution. |
||
| 14 | * - The name of the author may not be used to endorse or promote products |
||
| 15 | * derived from this software without specific prior written permission. |
||
| 16 | * |
||
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
||
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
||
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
||
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
||
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
||
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
||
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
||
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
||
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
||
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||
| 27 | */ |
||
| 28 | |||
| 29 | #include <arch/arch.h> |
||
| 30 | |||
| 2076 | jermar | 31 | #define DCACHE_SIZE (16 * 1024) |
| 2016 | jermar | 32 | #define DCACHE_LINE_SIZE 32 |
| 2008 | jermar | 33 | |
| 2076 | jermar | 34 | #define DCACHE_TAG_SHIFT 2 |
| 35 | |||
| 36 | .register %g2, #scratch |
||
| 37 | .register %g3, #scratch |
||
| 38 | |||
| 39 | /** Flush the whole D-cache. */ |
||
| 2008 | jermar | 40 | .global dcache_flush |
| 41 | dcache_flush: |
||
| 42 | set (DCACHE_SIZE - DCACHE_LINE_SIZE), %g1 |
||
| 43 | stxa %g0, [%g1] ASI_DCACHE_TAG |
||
| 44 | 0: membar #Sync |
||
| 45 | subcc %g1, DCACHE_LINE_SIZE, %g1 |
||
| 46 | bnz,pt %xcc, 0b |
||
| 47 | stxa %g0, [%g1] ASI_DCACHE_TAG |
||
| 48 | retl |
||
| 49 | membar #Sync |
||
| 50 | |||
| 2076 | jermar | 51 | /** Flush only D-cache lines of one virtual color. |
| 52 | * |
||
| 53 | * @param o0 Virtual color to be flushed. |
||
| 54 | */ |
||
| 55 | .global dcache_flush_color |
||
| 56 | dcache_flush_color: |
||
| 57 | mov (DCACHE_SIZE / DCACHE_LINE_SIZE) / 2, %g1 |
||
| 58 | set DCACHE_SIZE / 2, %g2 |
||
| 59 | sllx %g2, %o0, %g2 |
||
| 60 | sub %g2, DCACHE_LINE_SIZE, %g2 |
||
| 61 | 0: stxa %g0, [%g2] ASI_DCACHE_TAG |
||
| 62 | membar #Sync |
||
| 63 | subcc %g1, 1, %g1 |
||
| 64 | bnz,pt %xcc, 0b |
||
| 65 | sub %g2, DCACHE_LINE_SIZE, %g2 |
||
| 66 | retl |
||
| 67 | nop |
||
| 68 | |||
| 69 | /** Flush only D-cache lines of one virtual color and one tag. |
||
| 70 | * |
||
| 71 | * @param o0 Virtual color to lookup the tag. |
||
| 72 | * @param o1 Tag of the cachelines to be flushed. |
||
| 73 | */ |
||
| 74 | .global dcache_flush_tag |
||
| 75 | dcache_flush_tag: |
||
| 76 | mov (DCACHE_SIZE / DCACHE_LINE_SIZE) / 2, %g1 |
||
| 77 | set DCACHE_SIZE / 2, %g2 |
||
| 78 | sllx %g2, %o0, %g2 |
||
| 79 | sub %g2, DCACHE_LINE_SIZE, %g2 |
||
| 80 | 0: ldxa [%g2] ASI_DCACHE_TAG, %g3 |
||
| 81 | srlx %g3, DCACHE_TAG_SHIFT, %g3 |
||
| 82 | cmp %g3, %o1 |
||
| 83 | bnz 1f |
||
| 84 | nop |
||
| 85 | stxa %g0, [%g2] ASI_DCACHE_TAG |
||
| 86 | membar #Sync |
||
| 87 | 1: subcc %g1, 1, %g1 |
||
| 88 | bnz,pt %xcc, 0b |
||
| 89 | sub %g2, DCACHE_LINE_SIZE, %g2 |
||
| 90 | retl |
||
| 91 | nop |