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| author | Ralf Baechle <ralf@linux-mips.org> | 1997-06-01 03:16:17 +0000 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 1997-06-01 03:16:17 +0000 |
| commit | d8d9b8f76f22b7a16a83e261e64f89ee611f49df (patch) | |
| tree | 3067bc130b80d52808e6390c9fc7fc087ec1e33c /arch/sparc/mm/viking.S | |
| parent | 19c9bba94152148523ba0f7ef7cffe3d45656b11 (diff) | |
Initial revision
Diffstat (limited to 'arch/sparc/mm/viking.S')
| -rw-r--r-- | arch/sparc/mm/viking.S | 85 |
1 files changed, 29 insertions, 56 deletions
diff --git a/arch/sparc/mm/viking.S b/arch/sparc/mm/viking.S index f61aa4398..19d426ec7 100644 --- a/arch/sparc/mm/viking.S +++ b/arch/sparc/mm/viking.S @@ -1,4 +1,4 @@ -/* $Id: viking.S,v 1.2 1997/04/20 21:21:49 ecd Exp $ +/* $Id: viking.S,v 1.3 1997/05/04 10:02:14 ecd Exp $ * viking.S: High speed Viking cache/mmu operations * * Copyright (C) 1997 Eddie C. Dost (ecd@skynet.be) @@ -38,40 +38,26 @@ viking_flush_page: viking_flush_chunk: - sethi %hi(C_LABEL(srmmu_map)), %g2 - or %g2, %lo(C_LABEL(srmmu_map)), %g3 - ld [%g3 + 8], %g2 - cmp %g2, 0 - be 3f + sethi %hi(C_LABEL(srmmu_v2p_hash)), %g2 + or %g2, %lo(C_LABEL(srmmu_v2p_hash)), %g2 + srl %o0, 24, %o1 + sll %o1, 2, %o1 + + ld [%g2 + %o1], %g3 + cmp %g3, 0 + bne 1f and %o0, PAGE_MASK, %o0 - ld [%g3], %o1 -1: - cmp %o1, %o0 - bgu,a 2f - add %g3, 0xc, %g3 - - add %o1, %g2, %g2 - cmp %g2, %o0 - bleu,a 2f - add %g3, 0xc, %g3 + retl + nop +1: + ld [%g3], %o1 sub %o0, %o1, %g2 ld [%g3 + 4], %o0 add %g2, %o0, %g3 - b 4f - srl %g3, 12, %g1 ! ppage >> 12 - -2: - ld [%g3 + 8], %g2 - cmp %g2, 0 - bne,a 1b - ld [%g3], %o1 -3: - retl - nop + srl %g3, 12, %g1 ! ppage >> 12 -4: clr %o1 ! set counter, 0 - 127 sethi %hi(KERNBASE + PAGE_SIZE - 0x80000000), %o3 sethi %hi(0x80000000), %o4 @@ -131,40 +117,27 @@ viking_flush_chunk: viking_mxcc_flush_page: - sethi %hi(C_LABEL(srmmu_map)), %g2 - or %g2, %lo(C_LABEL(srmmu_map)), %g3 - ld [%g3 + 8], %g2 - cmp %g2, 0 - be 3f + sethi %hi(C_LABEL(srmmu_v2p_hash)), %g2 + or %g2, %lo(C_LABEL(srmmu_v2p_hash)), %g2 + srl %o0, 24, %o1 + sll %o1, 2, %o1 + + ld [%g2 + %o1], %g3 + cmp %g3, 0 + bne 1f and %o0, PAGE_MASK, %o0 - ld [%g3], %o1 -1: - cmp %o1, %o0 - bgu,a 2f - add %g3, 0xc, %g3 - - add %o1, %g2, %g2 - cmp %g2, %o0 - bleu,a 2f - add %g3, 0xc, %g3 + retl + nop +1: + ld [%g3], %o1 sub %o0, %o1, %g2 ld [%g3 + 4], %o0 + sethi %hi(PAGE_SIZE), %g4 add %g2, %o0, %g3 - sethi %hi(PAGE_SIZE), %g4 - b 4f - add %g3, %g4, %g3 ! ppage + PAGE_SIZE - -2: - ld [%g3 + 8], %g2 - cmp %g2, 0 - bne,a 1b - ld [%g3], %o1 -3: - retl - nop -4: + add %g3, %g4, %g3 ! ppage + PAGE_SIZE + mov 0x10, %g2 ! set cacheable bit sethi %hi(MXCC_SRCSTREAM), %o2 or %o2, %lo(MXCC_SRCSTREAM), %o2 |