mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-14 21:01:29 +00:00
6ab3d5624e
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
133 lines
3.3 KiB
ArmAsm
133 lines
3.3 KiB
ArmAsm
/* $Id: tsunami.S,v 1.7 2001/12/21 04:56:15 davem Exp $
|
|
* tsunami.S: High speed MicroSparc-I mmu/cache operations.
|
|
*
|
|
* Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
|
|
*/
|
|
|
|
#include <asm/ptrace.h>
|
|
#include <asm/asm-offsets.h>
|
|
#include <asm/psr.h>
|
|
#include <asm/asi.h>
|
|
#include <asm/page.h>
|
|
#include <asm/pgtsrmmu.h>
|
|
|
|
.text
|
|
.align 4
|
|
|
|
.globl tsunami_flush_cache_all, tsunami_flush_cache_mm
|
|
.globl tsunami_flush_cache_range, tsunami_flush_cache_page
|
|
.globl tsunami_flush_page_to_ram, tsunami_flush_page_for_dma
|
|
.globl tsunami_flush_sig_insns
|
|
.globl tsunami_flush_tlb_all, tsunami_flush_tlb_mm
|
|
.globl tsunami_flush_tlb_range, tsunami_flush_tlb_page
|
|
|
|
/* Sliiick... */
|
|
tsunami_flush_cache_page:
|
|
tsunami_flush_cache_range:
|
|
ld [%o0 + 0x0], %o0 /* XXX vma->vm_mm, GROSS XXX */
|
|
tsunami_flush_cache_mm:
|
|
ld [%o0 + AOFF_mm_context], %g2
|
|
cmp %g2, -1
|
|
be tsunami_flush_cache_out
|
|
tsunami_flush_cache_all:
|
|
WINDOW_FLUSH(%g4, %g5)
|
|
tsunami_flush_page_for_dma:
|
|
sta %g0, [%g0] ASI_M_IC_FLCLEAR
|
|
sta %g0, [%g0] ASI_M_DC_FLCLEAR
|
|
tsunami_flush_cache_out:
|
|
tsunami_flush_page_to_ram:
|
|
retl
|
|
nop
|
|
|
|
tsunami_flush_sig_insns:
|
|
flush %o1
|
|
retl
|
|
flush %o1 + 4
|
|
|
|
/* More slick stuff... */
|
|
tsunami_flush_tlb_range:
|
|
ld [%o0 + 0x00], %o0 /* XXX vma->vm_mm GROSS XXX */
|
|
tsunami_flush_tlb_mm:
|
|
ld [%o0 + AOFF_mm_context], %g2
|
|
cmp %g2, -1
|
|
be tsunami_flush_tlb_out
|
|
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
|
|
|
|
/* This one can be done in a fine grained manner... */
|
|
tsunami_flush_tlb_page:
|
|
ld [%o0 + 0x00], %o0 /* XXX vma->vm_mm GROSS XXX */
|
|
mov SRMMU_CTX_REG, %g1
|
|
ld [%o0 + AOFF_mm_context], %o3
|
|
andn %o1, (PAGE_SIZE - 1), %o1
|
|
cmp %o3, -1
|
|
be tsunami_flush_tlb_page_out
|
|
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
|