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authorJames <james.mckenzie@citrix.com>2012-11-16 10:41:01 +0000
committerJames <james.mckenzie@citrix.com>2012-11-16 10:41:01 +0000
commit041d1ea37802bf7178a31a53f96c26efa6b8fb7b (patch)
treec193e84ad1237f25a79d0f6a267722e44c73f56a /grub-core/kern/mips/cache_flush.S
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Diffstat (limited to 'grub-core/kern/mips/cache_flush.S')
-rw-r--r--grub-core/kern/mips/cache_flush.S23
1 files changed, 23 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..11096c0
--- /dev/null
+++ b/grub-core/kern/mips/cache_flush.S
@@ -0,0 +1,23 @@
+ 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, $t2
+1:
+ cache 1, 0($t0)
+ addiu $t1, $t1, 0xffff
+ bne $t1, $zero, 1b
+ addiu $t0, $t0, 0x1
+ sync
+ move $t0, $t2
+ subu $t1, $t3, $t2
+2:
+ cache 0, 0($t0)
+ addiu $t1, $t1, 0xffff
+ bne $t1, $zero, 2b
+ addiu $t0, $t0, 0x1
+ sync