diff options
Diffstat (limited to 'arch/sparc/mm/tsunami.S')
| -rw-r--r-- | arch/sparc/mm/tsunami.S | 64 |
1 files changed, 61 insertions, 3 deletions
diff --git a/arch/sparc/mm/tsunami.S b/arch/sparc/mm/tsunami.S index 1c4356fa0..07c5ed620 100644 --- a/arch/sparc/mm/tsunami.S +++ b/arch/sparc/mm/tsunami.S @@ -1,4 +1,4 @@ -/* $Id: tsunami.S,v 1.2 1999/08/14 03:51:48 anton Exp $ +/* $Id: tsunami.S,v 1.3 1999/10/09 05:32:19 zaitcev Exp $ * tsunami.S: High speed MicroSparc-I mmu/cache operations. * * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) @@ -44,11 +44,11 @@ tsunami_flush_cache_range: tsunami_flush_cache_all: WINDOW_FLUSH(%g4, %g5) tsunami_flush_page_for_dma: - sta %g0, [%g0] ASI_M_DC_FLCLEAR sta %g0, [%g0] ASI_M_IC_FLCLEAR +tsunami_flush_chunk: + sta %g0, [%g0] ASI_M_DC_FLCLEAR tsunami_flush_cache_out: tsunami_flush_page_to_ram: -tsunami_flush_chunk: retl nop @@ -68,6 +68,11 @@ tsunami_flush_tlb_range: tsunami_flush_tlb_all: mov 0x400, %o1 sta %g0, [%o1] ASI_M_FLUSH_PROBE + nop + nop + nop + nop + nop tsunami_flush_tlb_out: retl nop @@ -85,6 +90,59 @@ tsunami_flush_tlb_page: lda [%g1] ASI_M_MMUREGS, %g5 sta %o3, [%g1] ASI_M_MMUREGS sta %g0, [%o1] ASI_M_FLUSH_PROBE + nop + nop + nop + nop + nop tsunami_flush_tlb_page_out: retl sta %g5, [%g1] ASI_M_MMUREGS + +#define MIRROR_BLOCK(dst, src, offset, t0, t1, t2, t3) \ + ldd [src + offset + 0x18], t0; \ + std t0, [dst + offset + 0x18]; \ + ldd [src + offset + 0x10], t2; \ + std t2, [dst + offset + 0x10]; \ + ldd [src + offset + 0x08], t0; \ + std t0, [dst + offset + 0x08]; \ + ldd [src + offset + 0x00], t2; \ + std t2, [dst + offset + 0x00]; + + .globl tsunami_copy_1page +tsunami_copy_1page: +/* NOTE: This routine has to be shorter than 70insns --jj */ + or %g0, (PAGE_SIZE >> 8), %g1 +1: + MIRROR_BLOCK(%o0, %o1, 0x00, %o2, %o3, %o4, %o5) + MIRROR_BLOCK(%o0, %o1, 0x20, %o2, %o3, %o4, %o5) + MIRROR_BLOCK(%o0, %o1, 0x40, %o2, %o3, %o4, %o5) + MIRROR_BLOCK(%o0, %o1, 0x60, %o2, %o3, %o4, %o5) + MIRROR_BLOCK(%o0, %o1, 0x80, %o2, %o3, %o4, %o5) + MIRROR_BLOCK(%o0, %o1, 0xa0, %o2, %o3, %o4, %o5) + MIRROR_BLOCK(%o0, %o1, 0xc0, %o2, %o3, %o4, %o5) + MIRROR_BLOCK(%o0, %o1, 0xe0, %o2, %o3, %o4, %o5) + subcc %g1, 1, %g1 + add %o0, 0x100, %o0 + bne 1b + add %o1, 0x100, %o1 + + .globl tsunami_setup_blockops +tsunami_setup_blockops: + sethi %hi(__copy_1page), %o0 + or %o0, %lo(__copy_1page), %o0 + sethi %hi(tsunami_copy_1page), %o1 + or %o1, %lo(tsunami_copy_1page), %o1 + sethi %hi(tsunami_setup_blockops), %o2 + or %o2, %lo(tsunami_setup_blockops), %o2 + ld [%o1], %o4 +1: add %o1, 4, %o1 + st %o4, [%o0] + add %o0, 4, %o0 + cmp %o1, %o2 + bne 1b + ld [%o1], %o4 + sta %g0, [%g0] ASI_M_IC_FLCLEAR + sta %g0, [%g0] ASI_M_DC_FLCLEAR + retl + nop |