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Subject[RFC 4/9] MCE: Move ADDR/MISC reading code into common function
Date
From: Andi Kleen <andi@firstfloor.org>

Used for next patch.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
---
arch/x86/kernel/cpu/mcheck/mce.c | 21 +++++++++++++--------
1 files changed, 13 insertions(+), 8 deletions(-)
diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index ee3b14e..f4924dc 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -525,6 +525,17 @@ static void mce_report_event(struct pt_regs *regs)
#endif
}

+/*
+ * Read ADDR and MISC registers.
+ */
+static void mce_read_aux(struct mce *m, int i)
+{
+ if (m->status & MCI_STATUS_MISCV)
+ m->misc = mce_rdmsrl(MSR_IA32_MCx_MISC(i));
+ if (m->status & MCI_STATUS_ADDRV)
+ m->addr = mce_rdmsrl(MSR_IA32_MCx_ADDR(i));
+}
+
DEFINE_PER_CPU(unsigned, mce_poll_count);

/*
@@ -576,10 +587,7 @@ void machine_check_poll(enum mcp_flags flags, mce_banks_t *b)
(m.status & (mce_ser ? MCI_STATUS_S : MCI_STATUS_UC)))
continue;

- if (m.status & MCI_STATUS_MISCV)
- m.misc = mce_rdmsrl(MSR_IA32_MCx_MISC(i));
- if (m.status & MCI_STATUS_ADDRV)
- m.addr = mce_rdmsrl(MSR_IA32_MCx_ADDR(i));
+ mce_read_aux(&m, i);

if (!(flags & MCP_TIMESTAMP))
m.tsc = 0;
@@ -1023,10 +1031,7 @@ void do_machine_check(struct pt_regs *regs, long error_code)
if (severity == MCE_AR_SEVERITY)
kill_it = 1;

- if (m.status & MCI_STATUS_MISCV)
- m.misc = mce_rdmsrl(MSR_IA32_MCx_MISC(i));
- if (m.status & MCI_STATUS_ADDRV)
- m.addr = mce_rdmsrl(MSR_IA32_MCx_ADDR(i));
+ mce_read_aux(&m, i);

/*
* Action optional error. Queue address for later processing.
--
1.7.3.1


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