powerpc/4xx: Move machine_check_4xx() into platforms/4xx

Now that we have 4xx platform directory we can move the 4xx machine
check handler in there. Again we drop get_mc_reason() and replace it
with regs->dsisr directly (which is actually SPRN_ESR).

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 69b54ab..8d1f79b 100644 (file)
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -428,23 +428,7 @@ static inline int check_io_access(struct pt_regs *regs)
 #define clear_single_step(regs)        ((regs)->msr &= ~MSR_SE)
 #endif
 
-#if defined(CONFIG_4xx)
-int machine_check_4xx(struct pt_regs *regs)
-{
-       unsigned long reason = get_mc_reason(regs);
-
-       if (reason & ESR_IMCP) {
-               printk("Instruction");
-               mtspr(SPRN_ESR, reason & ~ESR_IMCP);
-       } else
-               printk("Data");
-       printk(" machine check in kernel mode.\n");
-
-       return 0;
-}
-
-
-#elif defined(CONFIG_E500)
+#if defined(CONFIG_E500)
 int machine_check_e500mc(struct pt_regs *regs)
 {
        unsigned long mcsr = mfspr(SPRN_MCSR);

diff --git a/arch/powerpc/platforms/4xx/Makefile b/arch/powerpc/platforms/4xx/Makefile
index 0d4b65c..9779c32 100644 (file)
--- a/arch/powerpc/platforms/4xx/Makefile
+++ b/arch/powerpc/platforms/4xx/Makefile
@@ -1,4 +1,4 @@
-obj-y                          += uic.o
+obj-y                          += uic.o machine_check.o
 obj-$(CONFIG_PPC4xx_OCM)       += ocm.o
 obj-$(CONFIG_4xx_SOC)          += soc.o
 obj-$(CONFIG_PCI)              += pci.o

diff --git a/arch/powerpc/platforms/4xx/machine_check.c b/arch/powerpc/platforms/4xx/machine_check.c
new file mode 100644 (file)
index 0000000..aa039df
--- /dev/null
+++ b/arch/powerpc/platforms/4xx/machine_check.c
@@ -0,0 +1,26 @@
+/*
+ * 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 <linux/printk.h>
+#include <linux/ptrace.h>
+
+#include <asm/reg.h>
+
+int machine_check_4xx(struct pt_regs *regs)
+{
+       unsigned long reason = regs->dsisr;
+
+       if (reason & ESR_IMCP) {
+               printk("Instruction");
+               mtspr(SPRN_ESR, reason & ~ESR_IMCP);
+       } else
+               printk("Data");
+       printk(" machine check in kernel mode.\n");
+
+       return 0;
+}