From 871480933a1c28f8a9fed4c4d34d06c439a7a422 Mon Sep 17 00:00:00 2001
From: Srikant Patnaik
Date: Sun, 11 Jan 2015 12:28:04 +0530
Subject: Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
---
 arch/sparc/lib/NG2patch.S | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 arch/sparc/lib/NG2patch.S

(limited to 'arch/sparc/lib/NG2patch.S')

diff --git a/arch/sparc/lib/NG2patch.S b/arch/sparc/lib/NG2patch.S
new file mode 100644
index 00000000..28c36f06
--- /dev/null
+++ b/arch/sparc/lib/NG2patch.S
@@ -0,0 +1,33 @@
+/* NG2patch.S: Patch Ultra-I routines with Niagara-2 variant.
+ *
+ * Copyright (C) 2007 David S. Miller <davem@davemloft.net>
+ */
+
+#define BRANCH_ALWAYS	0x10680000
+#define NOP		0x01000000
+#define NG_DO_PATCH(OLD, NEW)	\
+	sethi	%hi(NEW), %g1; \
+	or	%g1, %lo(NEW), %g1; \
+	sethi	%hi(OLD), %g2; \
+	or	%g2, %lo(OLD), %g2; \
+	sub	%g1, %g2, %g1; \
+	sethi	%hi(BRANCH_ALWAYS), %g3; \
+	sll	%g1, 11, %g1; \
+	srl	%g1, 11 + 2, %g1; \
+	or	%g3, %lo(BRANCH_ALWAYS), %g3; \
+	or	%g3, %g1, %g3; \
+	stw	%g3, [%g2]; \
+	sethi	%hi(NOP), %g3; \
+	or	%g3, %lo(NOP), %g3; \
+	stw	%g3, [%g2 + 0x4]; \
+	flush	%g2;
+
+	.globl	niagara2_patch_copyops
+	.type	niagara2_patch_copyops,#function
+niagara2_patch_copyops:
+	NG_DO_PATCH(memcpy, NG2memcpy)
+	NG_DO_PATCH(___copy_from_user, NG2copy_from_user)
+	NG_DO_PATCH(___copy_to_user, NG2copy_to_user)
+	retl
+	 nop
+	.size	niagara2_patch_copyops,.-niagara2_patch_copyops
-- 
cgit