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authorHuang Ying <ying.huang@intel.com>2012-06-12 11:20:19 +0800
committerLen Brown <len.brown@intel.com>2012-06-12 00:17:18 -0400
commit34ddeb035d704eafdcdb3cbc781894300136c3c4 (patch)
treec1be24de9eb3c8f0a1907908c02e4404da17a2cf /drivers/acpi/apei/apei-internal.h
parentcfaf025112d3856637ff34a767ef785ef5cf2ca9 (diff)
downloadlinux-34ddeb035d704eafdcdb3cbc781894300136c3c4.tar.bz2
ACPI, APEI, Avoid too much error reporting in runtime
This patch fixed the following bug. https://bugzilla.kernel.org/show_bug.cgi?id=43282 This is caused by a firmware bug checking (checking generic address register provided by firmware) in runtime. The checking should be done in address mapping time instead of runtime to avoid too much error reporting in runtime. Reported-by: Pawel Sikora <pluto@agmk.net> Signed-off-by: Huang Ying <ying.huang@intel.com> Tested-by: Jean Delvare <khali@linux-fr.org> Cc: stable@vger.kernel.org Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/apei/apei-internal.h')
-rw-r--r--drivers/acpi/apei/apei-internal.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/acpi/apei/apei-internal.h b/drivers/acpi/apei/apei-internal.h
index cca240a33038..f220d642136e 100644
--- a/drivers/acpi/apei/apei-internal.h
+++ b/drivers/acpi/apei/apei-internal.h
@@ -7,6 +7,8 @@
#define APEI_INTERNAL_H
#include <linux/cper.h>
+#include <linux/acpi.h>
+#include <linux/acpi_io.h>
struct apei_exec_context;
@@ -68,6 +70,13 @@ static inline int apei_exec_run_optional(struct apei_exec_context *ctx, u8 actio
/* IP has been set in instruction function */
#define APEI_EXEC_SET_IP 1
+int apei_map_generic_address(struct acpi_generic_address *reg);
+
+static inline void apei_unmap_generic_address(struct acpi_generic_address *reg)
+{
+ acpi_os_unmap_generic_address(reg);
+}
+
int apei_read(u64 *val, struct acpi_generic_address *reg);
int apei_write(u64 val, struct acpi_generic_address *reg);