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Deduplicated cache handling. Fixed jump hatch being filled with random stuff

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Vladimir 'phcoder' Serbinenko 2009-11-28 23:34:48 +01:00
parent a44c7e23d8
commit 3c68ed3d80
4 changed files with 34 additions and 65 deletions
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26
kern/mips/cache.S
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@ -1,29 +1,7 @@
#include <grub/symbol.h>
/* FIXME: This should invalidate only part of memory. */
FUNCTION (grub_cpu_flush_cache)
FUNCTION (grub_arch_sync_caches)
move $t2, $a0
addu $t3, $a0, $a1
srl $t2, $t2, 5
sll $t2, $t2, 5
addu $t3, $t3, 0x1f
srl $t3, $t3, 5
sll $t3, $t3, 5
move $t0, $t2
subu $t1, $t3, $t2
r1:
cache 1, 0($t0)
addiu $t0, $t0, 0x1
addiu $t1, $t1, 0xffff
bne $t1, $zero, r1
sync
move $t0, $t2
subu $t1, $t3, $t2
r2:
cache 0, 0($t0)
addiu $t0, $t0, 0x1
addiu $t1, $t1, 0xffff
bne $t1, $zero, r2
sync
#include "cache_flush.S"
j $ra