Rev 3022 | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed
| Rev 3022 | Rev 4055 | ||
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| Line 25... | Line 25... | ||
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
27 | */ |
| 28 | 28 | ||
| 29 | #include <arch/arch.h> |
29 | #include <arch/arch.h> |
| 30 | - | ||
| 31 | #define DCACHE_SIZE (16 * 1024) |
- | |
| 32 | #define DCACHE_LINE_SIZE 32 |
30 | #include <arch/mm/cache_spec.h> |
| 33 | 31 | ||
| 34 | #define DCACHE_TAG_SHIFT 2 |
32 | #define DCACHE_TAG_SHIFT 2 |
| 35 | 33 | ||
| 36 | .register %g2, #scratch |
34 | .register %g2, #scratch |
| 37 | .register %g3, #scratch |
35 | .register %g3, #scratch |
| Line 47... | Line 45... | ||
| 47 | stxa %g0, [%g1] ASI_DCACHE_TAG |
45 | stxa %g0, [%g1] ASI_DCACHE_TAG |
| 48 | membar #Sync |
46 | membar #Sync |
| 49 | retl |
47 | retl |
| 50 | ! beware SF Erratum #51, do not put the MEMBAR here |
48 | ! beware SF Erratum #51, do not put the MEMBAR here |
| 51 | nop |
49 | nop |
| 52 | - | ||
| 53 | /** Flush only D-cache lines of one virtual color. |
- | |
| 54 | * |
- | |
| 55 | * @param o0 Virtual color to be flushed. |
- | |
| 56 | */ |
- | |
| 57 | .global dcache_flush_color |
- | |
| 58 | dcache_flush_color: |
- | |
| 59 | mov (DCACHE_SIZE / DCACHE_LINE_SIZE) / 2, %g1 |
- | |
| 60 | set DCACHE_SIZE / 2, %g2 |
- | |
| 61 | sllx %g2, %o0, %g2 |
- | |
| 62 | sub %g2, DCACHE_LINE_SIZE, %g2 |
- | |
| 63 | 0: stxa %g0, [%g2] ASI_DCACHE_TAG |
- | |
| 64 | membar #Sync |
- | |
| 65 | subcc %g1, 1, %g1 |
- | |
| 66 | bnz,pt %xcc, 0b |
- | |
| 67 | sub %g2, DCACHE_LINE_SIZE, %g2 |
- | |
| 68 | retl |
- | |
| 69 | nop |
- | |
| 70 | - | ||
| 71 | /** Flush only D-cache lines of one virtual color and one tag. |
- | |
| 72 | * |
- | |
| 73 | * @param o0 Virtual color to lookup the tag. |
- | |
| 74 | * @param o1 Tag of the cachelines to be flushed. |
- | |
| 75 | */ |
- | |
| 76 | .global dcache_flush_tag |
- | |
| 77 | dcache_flush_tag: |
- | |
| 78 | mov (DCACHE_SIZE / DCACHE_LINE_SIZE) / 2, %g1 |
- | |
| 79 | set DCACHE_SIZE / 2, %g2 |
- | |
| 80 | sllx %g2, %o0, %g2 |
- | |
| 81 | sub %g2, DCACHE_LINE_SIZE, %g2 |
- | |
| 82 | 0: ldxa [%g2] ASI_DCACHE_TAG, %g3 |
- | |
| 83 | srlx %g3, DCACHE_TAG_SHIFT, %g3 |
- | |
| 84 | cmp %g3, %o1 |
- | |
| 85 | bnz 1f |
- | |
| 86 | nop |
- | |
| 87 | stxa %g0, [%g2] ASI_DCACHE_TAG |
- | |
| 88 | membar #Sync |
- | |
| 89 | 1: subcc %g1, 1, %g1 |
- | |
| 90 | bnz,pt %xcc, 0b |
- | |
| 91 | sub %g2, DCACHE_LINE_SIZE, %g2 |
- | |
| 92 | retl |
- | |
| 93 | nop |
- | |