summaryrefslogtreecommitdiffstats
path: root/arch/alpha/lib/clear_page.S
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/alpha/lib/clear_page.S
downloadkernel-crypto-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
kernel-crypto-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz
kernel-crypto-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'arch/alpha/lib/clear_page.S')
-rw-r--r--arch/alpha/lib/clear_page.S39
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/alpha/lib/clear_page.S b/arch/alpha/lib/clear_page.S
new file mode 100644
index 00000000000..a221ae266e2
--- /dev/null
+++ b/arch/alpha/lib/clear_page.S
@@ -0,0 +1,39 @@
+/*
+ * arch/alpha/lib/clear_page.S
+ *
+ * Zero an entire page.
+ */
+
+ .text
+ .align 4
+ .global clear_page
+ .ent clear_page
+clear_page:
+ .prologue 0
+
+ lda $0,128
+ nop
+ unop
+ nop
+
+1: stq $31,0($16)
+ stq $31,8($16)
+ stq $31,16($16)
+ stq $31,24($16)
+
+ stq $31,32($16)
+ stq $31,40($16)
+ stq $31,48($16)
+ subq $0,1,$0
+
+ stq $31,56($16)
+ addq $16,64,$16
+ unop
+ bne $0,1b
+
+ ret
+ nop
+ unop
+ nop
+
+ .end clear_page