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-rw-r--r--arch/powerpc/kernel/cputable.c36
-rw-r--r--arch/powerpc/lib/Makefile1
-rw-r--r--arch/powerpc/lib/feature-fixups.c56
3 files changed, 57 insertions, 36 deletions
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index ba5b23f5476..817cea1b5ad 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -17,7 +17,6 @@
#include <linux/module.h>
#include <asm/oprofile_impl.h>
-#include <asm/code-patching.h>
#include <asm/cputable.h>
#include <asm/prom.h> /* for PTRRELOC on ARCH=ppc */
@@ -1638,38 +1637,3 @@ struct cpu_spec * __init identify_cpu(unsigned long offset, unsigned int pvr)
BUG();
return NULL;
}
-
-void do_feature_fixups(unsigned long value, void *fixup_start, void *fixup_end)
-{
- struct fixup_entry {
- unsigned long mask;
- unsigned long value;
- long start_off;
- long end_off;
- } *fcur, *fend;
-
- fcur = fixup_start;
- fend = fixup_end;
-
- for (; fcur < fend; fcur++) {
- unsigned int *pstart, *pend, *p;
-
- if ((value & fcur->mask) == fcur->value)
- continue;
-
- /* These PTRRELOCs will disappear once the new scheme for
- * modules and vdso is implemented
- */
- pstart = ((unsigned int *)fcur) + (fcur->start_off / 4);
- pend = ((unsigned int *)fcur) + (fcur->end_off / 4);
-
- for (p = pstart; p < pend; p++) {
- *p = PPC_NOP_INSTR;
- asm volatile ("dcbst 0, %0" : : "r" (p));
- }
- asm volatile ("sync" : : : "memory");
- for (p = pstart; p < pend; p++)
- asm volatile ("icbi 0,%0" : : "r" (p));
- asm volatile ("sync; isync" : : : "memory");
- }
-}
diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
index e7f7042b9f6..fc52771f0cd 100644
--- a/arch/powerpc/lib/Makefile
+++ b/arch/powerpc/lib/Makefile
@@ -26,3 +26,4 @@ endif
obj-$(CONFIG_PPC_LIB_RHEAP) += rheap.o
obj-y += code-patching.o
+obj-y += feature-fixups.o
diff --git a/arch/powerpc/lib/feature-fixups.c b/arch/powerpc/lib/feature-fixups.c
new file mode 100644
index 00000000000..f6fd5d2ff10
--- /dev/null
+++ b/arch/powerpc/lib/feature-fixups.c
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2001 Ben. Herrenschmidt (benh@kernel.crashing.org)
+ *
+ * Modifications for ppc64:
+ * Copyright (C) 2003 Dave Engebretsen <engebret@us.ibm.com>
+ *
+ * Copyright 2008 Michael Ellerman, IBM Corporation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <asm/cputable.h>
+#include <asm/code-patching.h>
+
+
+struct fixup_entry {
+ unsigned long mask;
+ unsigned long value;
+ long start_off;
+ long end_off;
+};
+
+static void patch_feature_section(unsigned long value, struct fixup_entry *fcur)
+{
+ unsigned int *pstart, *pend, *p;
+
+ if ((value & fcur->mask) == fcur->value)
+ return;
+
+ pstart = ((unsigned int *)fcur) + (fcur->start_off / 4);
+ pend = ((unsigned int *)fcur) + (fcur->end_off / 4);
+
+ for (p = pstart; p < pend; p++) {
+ *p = PPC_NOP_INSTR;
+ asm volatile ("dcbst 0, %0" : : "r" (p));
+ }
+ asm volatile ("sync" : : : "memory");
+ for (p = pstart; p < pend; p++)
+ asm volatile ("icbi 0,%0" : : "r" (p));
+ asm volatile ("sync; isync" : : : "memory");
+}
+
+void do_feature_fixups(unsigned long value, void *fixup_start, void *fixup_end)
+{
+ struct fixup_entry *fcur, *fend;
+
+ fcur = fixup_start;
+ fend = fixup_end;
+
+ for (; fcur < fend; fcur++)
+ patch_feature_section(value, fcur);
+}