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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:29:51 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:29:51 +0000 |
| commit | 6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e (patch) | |
| tree | 32451fa3cdd9321fb2591fada9891b2cb70a9cd1 /grub-core/kern/mips/cache_flush.S | |
| parent | Initial commit. (diff) | |
| download | grub2-6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e.tar.xz grub2-6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e.zip | |
Adding upstream version 2.06.upstream/2.06upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'grub-core/kern/mips/cache_flush.S')
| -rw-r--r-- | grub-core/kern/mips/cache_flush.S | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/grub-core/kern/mips/cache_flush.S b/grub-core/kern/mips/cache_flush.S new file mode 100644 index 0000000..89961a0 --- /dev/null +++ b/grub-core/kern/mips/cache_flush.S @@ -0,0 +1,54 @@ +#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 |