grub/grub-core/kern/mips/cache_flush.S

#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
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 03:36:53 +00:00			`#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`

Deduplicated cache handling. Fixed jump hatch being filled with random stuff 2009-11-28 22:34:48 +00:00			`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, $t2`
			`1:`
Remove -march=mips3 from TARGET_CCASFLAGS as it creates linking problem when rest of GRUB is compiled for hisher stepping. Instead use .set mips3/.set mips1 around cache and sync opcodes. 2013-11-22 03:36:53 +00:00			`cache_op 1, 0($t0)`
* grub-core/kern/mips/cache_flush.S [GRUB_MACHINE_MIPS_LOONGSON]: Flush all four ways. 2011-07-23 14:44:40 +00:00			`/* All four ways. */`
			`#ifdef GRUB_MACHINE_MIPS_LOONGSON`
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 03:36:53 +00:00			`cache_op 1, 1($t0)`
			`cache_op 1, 2($t0)`
			`cache_op 1, 3($t0)`
Avoid flushing the same line multiple times on loongson. * grub-core/kern/mips/cache.S [GRUB_MACHINE_MIPS_LOONGSON]: Step in 32 bytes and not 1 byte. * grub-core/kern/mips/cache_flush.S [GRUB_MACHINE_MIPS_LOONGSON]: Likewise. 2012-06-22 21:36:33 +00:00			`addiu $t1, $t1, -0x20`
			`bne $t1, $zero, 1b`
			`addiu $t0, $t0, 0x20`
* grub-core/kern/mips/cache_flush.S [GRUB_MACHINE_MIPS_LOONGSON]: Flush all four ways. 2011-07-23 14:44:40 +00:00
Avoid flushing the same line multiple times on loongson. * grub-core/kern/mips/cache.S [GRUB_MACHINE_MIPS_LOONGSON]: Step in 32 bytes and not 1 byte. * grub-core/kern/mips/cache_flush.S [GRUB_MACHINE_MIPS_LOONGSON]: Likewise. 2012-06-22 21:36:33 +00:00			`#else`
avoid executing cache opcode on non-4 byte aligned boundaries 2011-05-13 14:41:26 +00:00			`addiu $t1, $t1, -0x4`
Deduplicated cache handling. Fixed jump hatch being filled with random stuff 2009-11-28 22:34:48 +00:00			`bne $t1, $zero, 1b`
avoid executing cache opcode on non-4 byte aligned boundaries 2011-05-13 14:41:26 +00:00			`addiu $t0, $t0, 0x4`
Avoid flushing the same line multiple times on loongson. * grub-core/kern/mips/cache.S [GRUB_MACHINE_MIPS_LOONGSON]: Step in 32 bytes and not 1 byte. * grub-core/kern/mips/cache_flush.S [GRUB_MACHINE_MIPS_LOONGSON]: Likewise. 2012-06-22 21:36:33 +00:00			`#endif`
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 03:36:53 +00:00			`sync_op`
Deduplicated cache handling. Fixed jump hatch being filled with random stuff 2009-11-28 22:34:48 +00:00			`move $t0, $t2`
			`subu $t1, $t3, $t2`
			`2:`
Remove -march=mips3 from TARGET_CCASFLAGS as it creates linking problem when rest of GRUB is compiled for hisher stepping. Instead use .set mips3/.set mips1 around cache and sync opcodes. 2013-11-22 03:36:53 +00:00			`cache_op 0, 0($t0)`
Avoid flushing the same line multiple times on loongson. * grub-core/kern/mips/cache.S [GRUB_MACHINE_MIPS_LOONGSON]: Step in 32 bytes and not 1 byte. * grub-core/kern/mips/cache_flush.S [GRUB_MACHINE_MIPS_LOONGSON]: Likewise. 2012-06-22 21:36:33 +00:00			`#ifdef GRUB_MACHINE_MIPS_LOONGSON`
			`addiu $t1, $t1, -0x20`
			`bne $t1, $zero, 2b`
			`addiu $t0, $t0, 0x20`
			`#else`
avoid executing cache opcode on non-4 byte aligned boundaries 2011-05-13 14:41:26 +00:00			`addiu $t1, $t1, -0x4`
Deduplicated cache handling. Fixed jump hatch being filled with random stuff 2009-11-28 22:34:48 +00:00			`bne $t1, $zero, 2b`
avoid executing cache opcode on non-4 byte aligned boundaries 2011-05-13 14:41:26 +00:00			`addiu $t0, $t0, 0x4`
Avoid flushing the same line multiple times on loongson. * grub-core/kern/mips/cache.S [GRUB_MACHINE_MIPS_LOONGSON]: Step in 32 bytes and not 1 byte. * grub-core/kern/mips/cache_flush.S [GRUB_MACHINE_MIPS_LOONGSON]: Likewise. 2012-06-22 21:36:33 +00:00			`#endif`
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 03:36:53 +00:00			`sync_op`