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authorAnton Vorontsov <avorontsov@ru.mvista.com>2008-12-17 10:09:01 +0000
committerPaul Mackerras <paulus@samba.org>2008-12-23 15:13:28 +1100
commit73753313884e8d063d9bf9d3e36325743ca006ba (patch)
tree671d11f4f25c0eb86bdc9ad2ba2d92333556d10a
parent322b439455ea62e6480e300c77b258e872896381 (diff)
powerpc/32/kdump: Implement crash_setup_regs() using ppc_save_regs()
This replaces the dummy crash_setup_regs function with full-fledged crash_setup_regs implementation. On PPC32 we simply use the new ppc_save_regs function to dump the registers. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
-rw-r--r--arch/powerpc/include/asm/kexec.h15
-rw-r--r--arch/powerpc/kernel/Makefile2
2 files changed, 7 insertions, 10 deletions
diff --git a/arch/powerpc/include/asm/kexec.h b/arch/powerpc/include/asm/kexec.h
index 3736d9b3328..6dbffc98170 100644
--- a/arch/powerpc/include/asm/kexec.h
+++ b/arch/powerpc/include/asm/kexec.h
@@ -33,12 +33,12 @@
#ifndef __ASSEMBLY__
#include <linux/cpumask.h>
+#include <asm/reg.h>
typedef void (*crash_shutdown_t)(void);
#ifdef CONFIG_KEXEC
-#ifdef __powerpc64__
/*
* This function is responsible for capturing register states if coming
* via panic or invoking dump using sysrq-trigger.
@@ -48,6 +48,7 @@ static inline void crash_setup_regs(struct pt_regs *newregs,
{
if (oldregs)
memcpy(newregs, oldregs, sizeof(*newregs));
+#ifdef __powerpc64__
else {
/* FIXME Merge this with xmon_save_regs ?? */
unsigned long tmp1, tmp2;
@@ -100,15 +101,11 @@ static inline void crash_setup_regs(struct pt_regs *newregs,
: "b" (newregs)
: "memory");
}
-}
#else
-/*
- * Provide a dummy definition to avoid build failures. Will remain
- * empty till crash dump support is enabled.
- */
-static inline void crash_setup_regs(struct pt_regs *newregs,
- struct pt_regs *oldregs) { }
-#endif /* !__powerpc64 __ */
+ else
+ ppc_save_regs(newregs);
+#endif /* __powerpc64__ */
+}
extern void kexec_smp_wait(void); /* get and clear naca physid, wait for
master to copy new code to 0 */
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index 616c8891d85..089209aa213 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -102,7 +102,7 @@ endif
obj-$(CONFIG_PPC64) += $(obj64-y)
-ifneq ($(CONFIG_XMON),)
+ifneq ($(CONFIG_XMON)$(CONFIG_KEXEC),)
obj-y += ppc_save_regs.o
endif