[PATCH] Add MCE resume under ia32

Shaohua Li
2005-08-23T01:58:54Z

Hi,
It's widely seen a MCE non-fatal error reported after resume. It seems
MCE resume is lacked under ia32. This patch tries to fix the gap.

Signed-off-by: Shaohua Li<shaohua.li@intel.com>
---

linux-2.6.13-rc6-root/arch/i386/kernel/cpu/mcheck/k7.c | 2 +-
linux-2.6.13-rc6-root/arch/i386/kernel/cpu/mcheck/mce.c | 4 ++--
linux-2.6.13-rc6-root/arch/i386/kernel/cpu/mcheck/p4.c | 4 ++--
linux-2.6.13-rc6-root/arch/i386/kernel/cpu/mcheck/p5.c | 2 +-
linux-2.6.13-rc6-root/arch/i386/kernel/cpu/mcheck/p6.c | 2 +-
linux-2.6.13-rc6-root/arch/i386/kernel/cpu/mcheck/winchip.c | 2 +-
linux-2.6.13-rc6-root/arch/i386/power/cpu.c | 5 +++++
7 files changed, 13 insertions(+), 8 deletions(-)

diff -puN arch/i386/kernel/cpu/mcheck/k7.c~mcheck_resume arch/i386/kernel/cpu/mcheck/k7.c
--- linux-2.6.13-rc6/arch/i386/kernel/cpu/mcheck/k7.c~mcheck_resume 2005-08-23 09:26:53.956518776 +0800
+++ linux-2.6.13-rc6-root/arch/i386/kernel/cpu/mcheck/k7.c 2005-08-23 09:27:15.916180400 +0800
@@ -69,7 +69,7 @@ static fastcall void k7_machine_check(st

/* AMD K7 machine check is Intel like */
-void __devinit amd_mcheck_init(struct cpuinfo_x86 *c)
+void amd_mcheck_init(struct cpuinfo_x86 *c)
{
u32 l, h;
int i;
diff -puN arch/i386/kernel/cpu/mcheck/mce.c~mcheck_resume arch/i386/kernel/cpu/mcheck/mce.c
--- linux-2.6.13-rc6/arch/i386/kernel/cpu/mcheck/mce.c~mcheck_resume 2005-08-23 09:27:40.301473272 +0800
+++ linux-2.6.13-rc6-root/arch/i386/kernel/cpu/mcheck/mce.c 2005-08-23 09:28:17.394834224 +0800
@@ -16,7 +16,7 @@

#include "mce.h"

-int mce_disabled __devinitdata = 0;
+int mce_disabled = 0;
int nr_mce_banks;

EXPORT_SYMBOL_GPL(nr_mce_banks); /* non-fatal.o */
@@ -31,7 +31,7 @@ static fastcall void unexpected_machine_
void fastcall (*machine_check_vector)(struct pt_regs *, long error_code) = unexpected_machine_check;

/* This has to be run for each processor */
-void __devinit mcheck_init(struct cpuinfo_x86 *c)
+void mcheck_init(struct cpuinfo_x86 *c)
{
if (mce_disabled==1)
return;
diff -puN arch/i386/kernel/cpu/mcheck/p4.c~mcheck_resume arch/i386/kernel/cpu/mcheck/p4.c
--- linux-2.6.13-rc6/arch/i386/kernel/cpu/mcheck/p4.c~mcheck_resume 2005-08-23 09:29:17.665671664 +0800
+++ linux-2.6.13-rc6-root/arch/i386/kernel/cpu/mcheck/p4.c 2005-08-23 09:29:59.738275656 +0800
@@ -78,7 +78,7 @@ fastcall void smp_thermal_interrupt(stru
}

/* P4/Xeon Thermal regulation detect and init */
-static void __devinit intel_init_thermal(struct cpuinfo_x86 *c)
+static void intel_init_thermal(struct cpuinfo_x86 *c)
{
u32 l, h;
unsigned int cpu = smp_processor_id();
@@ -232,7 +232,7 @@ static fastcall void intel_machine_check
}

-void __devinit intel_p4_mcheck_init(struct cpuinfo_x86 *c)
+void intel_p4_mcheck_init(struct cpuinfo_x86 *c)
{
u32 l, h;
int i;
diff -puN arch/i386/kernel/cpu/mcheck/p5.c~mcheck_resume arch/i386/kernel/cpu/mcheck/p5.c
--- linux-2.6.13-rc6/arch/i386/kernel/cpu/mcheck/p5.c~mcheck_resume 2005-08-23 09:29:22.504935984 +0800
+++ linux-2.6.13-rc6-root/arch/i386/kernel/cpu/mcheck/p5.c 2005-08-23 09:30:12.610318808 +0800
@@ -29,7 +29,7 @@ static fastcall void pentium_machine_che
}

/* Set up machine check reporting for processors with Intel style MCE */
-void __devinit intel_p5_mcheck_init(struct cpuinfo_x86 *c)
+void intel_p5_mcheck_init(struct cpuinfo_x86 *c)
{
u32 l, h;

diff -puN arch/i386/kernel/cpu/mcheck/p6.c~mcheck_resume arch/i386/kernel/cpu/mcheck/p6.c
--- linux-2.6.13-rc6/arch/i386/kernel/cpu/mcheck/p6.c~mcheck_resume 2005-08-23 09:29:25.030552032 +0800
+++ linux-2.6.13-rc6-root/arch/i386/kernel/cpu/mcheck/p6.c 2005-08-23 09:30:26.595192784 +0800
@@ -80,7 +80,7 @@ static fastcall void intel_machine_check
}

/* Set up machine check reporting for processors with Intel style MCE */
-void __devinit intel_p6_mcheck_init(struct cpuinfo_x86 *c)
+void intel_p6_mcheck_init(struct cpuinfo_x86 *c)
{
u32 l, h;
int i;
diff -puN arch/i386/kernel/cpu/mcheck/winchip.c~mcheck_resume arch/i386/kernel/cpu/mcheck/winchip.c
--- linux-2.6.13-rc6/arch/i386/kernel/cpu/mcheck/winchip.c~mcheck_resume 2005-08-23 09:29:34.589098912 +0800
+++ linux-2.6.13-rc6-root/arch/i386/kernel/cpu/mcheck/winchip.c 2005-08-23 09:30:42.652751664 +0800
@@ -23,7 +23,7 @@ static fastcall void winchip_machine_che
}

/* Set up machine check reporting on the Winchip C6 series */
-void __devinit winchip_mcheck_init(struct cpuinfo_x86 *c)
+void winchip_mcheck_init(struct cpuinfo_x86 *c)
{
u32 lo, hi;
machine_check_vector = winchip_machine_check;
diff -puN arch/i386/power/cpu.c~mcheck_resume arch/i386/power/cpu.c
--- linux-2.6.13-rc6/arch/i386/power/cpu.c~mcheck_resume 2005-08-23 09:32:13.054008584 +0800
+++ linux-2.6.13-rc6-root/arch/i386/power/cpu.c 2005-08-23 09:41:54.992540480 +0800
@@ -104,6 +104,8 @@ static void fix_processor_context(void)

}

+extern void mcheck_init(struct cpuinfo_x86 *c);
+
void __restore_processor_state(struct saved_context *ctxt)
{
/*
@@ -138,6 +140,9 @@ void __restore_processor_state(struct sa
fix_processor_context();
do_fpu_end();
mtrr_ap_init();
+#ifdef CONFIG_X86_MCE
+ mcheck_init(&boot_cpu_data);
+#endif
}

void restore_processor_state(void)
_