grub/grub-core/kern/mips/cache_flush.S
Vladimir Serbinenko 0d8f04cd83 Remove -march=mips3 from TARGET_CCASFLAGS as it creates linking problem
when rest of GRUB is compiled for hisher stepping. Instead use
	.set mips3/.set mips1 around cache and sync opcodes.
2013-11-22 04:36:53 +01:00

54 lines
883 B
ArmAsm

#ifndef CACHE_OP_DEFINED
#define CACHE_OP_DEFINED 1
.macro cache_op op addr
.set mips3
cache \op, \addr
.set mips1
.endm
.macro sync_op
.set mips3
sync
.set mips1
.endm
#endif
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)
/* All four ways. */
#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, -0x4
bne $t1, $zero, 1b
addiu $t0, $t0, 0x4
#endif
sync_op
move $t0, $t2
subu $t1, $t3, $t2
2:
cache_op 0, 0($t0)
#ifdef GRUB_MACHINE_MIPS_LOONGSON
addiu $t1, $t1, -0x20
bne $t1, $zero, 2b
addiu $t0, $t0, 0x20
#else
addiu $t1, $t1, -0x4
bne $t1, $zero, 2b
addiu $t0, $t0, 0x4
#endif
sync_op