x86, mce, cmci: use polled banks bitmap in machine check poller

Define a per cpu bitmap that contains the banks polled by the machine
check poller. This is needed for the CMCI code in the next patches
to be able to disable polling on specific banks.

The bank by default contains all banks, so there is no behaviour
change. Only future code will remove some banks from the polling
set.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h
index 125cd8714622..9b9523699dbc 100644
--- a/arch/x86/include/asm/mce.h
+++ b/arch/x86/include/asm/mce.h
@@ -119,11 +119,14 @@ extern atomic_t mce_entry;
 
 extern void do_machine_check(struct pt_regs *, long);
 
+typedef DECLARE_BITMAP(mce_banks_t, MAX_NR_BANKS);
+DECLARE_PER_CPU(mce_banks_t, mce_poll_banks);
+
 enum mcp_flags {
         MCP_TIMESTAMP = (1 << 0),       /* log time stamp */
         MCP_UC = (1 << 1),              /* log uncorrected errors */
 };
-extern void machine_check_poll(enum mcp_flags flags);
+extern void machine_check_poll(enum mcp_flags flags, mce_banks_t *b);
 
 extern int mce_notify_user(void);