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/* $Id: turbosparc.S,v 1.3 1998/05/04 12:41:29 ralf Exp $
* turbosparc.S: High speed TurboSparc mmu/cache operations.
*
* Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
* Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
*/
#include <asm/ptrace.h>
#include <asm/psr.h>
#include <asm/asi.h>
#include <asm/page.h>
#include <asm/pgtsrmmu.h>
#define WINDOW_FLUSH(tmp1, tmp2) \
mov 0, tmp1; \
98: ld [%g6 + AOFF_task_tss + AOFF_thread_uwinmask], tmp2; \
orcc %g0, tmp2, %g0; \
add tmp1, 1, tmp1; \
bne 98b; \
save %sp, -64, %sp; \
99: subcc tmp1, 1, tmp1; \
bne 99b; \
restore %g0, %g0, %g0;
.text
.align 4
.globl turbosparc_flush_cache_all
.globl turbosparc_flush_sig_insns
.globl turbosparc_flush_page_for_dma
turbosparc_flush_cache_all:
WINDOW_FLUSH(%g4, %g5)
sethi %hi(vac_cache_size), %g4
ld [%g4 + %lo(vac_cache_size)], %g5
sethi %hi(vac_line_size), %g1
ld [%g1 + %lo(vac_line_size)], %g2
1:
subcc %g5, %g2, %g5
bne 1b
sta %g0, [%g5] ASI_M_DATAC_TAG
retl
sta %g0, [%g0] ASI_M_IC_FLCLEAR
turbosparc_flush_sig_insns:
turbosparc_flush_page_for_dma:
retl
nop
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