1 files changed, 49 insertions, 0 deletions

diff --git a/arch/alpha/lib/copy_page.S b/arch/alpha/lib/copy_page.S
new file mode 100644
index 000000000000..9f3b97459cc6
--- /dev/null
+++ b/arch/alpha/lib/copy_page.S
@@ -0,0 +1,49 @@
+/*
+ * arch/alpha/lib/copy_page.S
+ *
+ * Copy an entire page.
+ */
+
+        .text
+        .align 4
+        .global copy_page
+        .ent copy_page
+copy_page:
+        .prologue 0
+
+        lda     $18,128
+        nop
+        unop
+        nop
+
+1:      ldq     $0,0($17)
+        ldq     $1,8($17)
+        ldq     $2,16($17)
+        ldq     $3,24($17)
+
+        ldq     $4,32($17)
+        ldq     $5,40($17)
+        ldq     $6,48($17)
+        ldq     $7,56($17)
+
+        stq     $0,0($16)
+        subq    $18,1,$18
+        stq     $1,8($16)
+        addq    $17,64,$17
+
+        stq     $2,16($16)
+        stq     $3,24($16)
+        stq     $4,32($16)
+        stq     $5,40($16)
+
+        stq     $6,48($16)
+        stq     $7,56($16)
+        addq    $16,64,$16
+        bne     $18, 1b
+
+        ret
+        nop
+        unop
+        nop
+
+        .end copy_page