grub/grub-core/kern/mips/cache.S
2013-12-08 17:49:02 +01:00

68 lines
No EOL
1.1 KiB
ArmAsm

#include <grub/symbol.h>
.set noreorder
.set nomacro
FUNCTION (grub_arch_sync_caches)
#include "cache_flush.S"
j $ra
FUNCTION (grub_arch_sync_dma_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, $t2
1:
cache_op 1, 0($t0)
#ifdef GRUB_MACHINE_MIPS_LOONGSON
cache_op 1, 1($t0)
cache_op 1, 2($t0)
cache_op 1, 3($t0)
addiu $t1, $t1, -0x20
bne $t1, $zero, 1b
addiu $t0, $t0, 0x20
#else
addiu $t1, $t1, -4
bne $t1, $zero, 1b
addiu $t0, $t0, 0x4
#endif
sync_op
move $t0, $t2
subu $t1, $t3, $t2
2:
#ifdef GRUB_MACHINE_MIPS_LOONGSON
cache_op 0, 0($t0)
addiu $t1, $t1, -0x20
bne $t1, $zero, 2b
addiu $t0, $t0, 0x20
#else
cache_op 0, 0($t0)
addiu $t1, $t1, -4
bne $t1, $zero, 2b
addiu $t0, $t0, 0x4
#endif
sync_op
move $t0, $t2
subu $t1, $t3, $t2
2:
#ifdef GRUB_MACHINE_MIPS_LOONGSON
cache_op 23, 0($t0)
addiu $t1, $t1, -0x20
bne $t1, $zero, 2b
addiu $t0, $t0, 0x20
#else
cache_op 23, 0($t0)
addiu $t1, $t1, -0x4
bne $t1, $zero, 2b
addiu $t0, $t0, 0x4
#endif
sync_op
jr $ra