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authorTomasz Nowicki <tomasz.nowicki@linaro.org>2014-07-22 11:20:11 +0200
committerTony Luck <tony.luck@intel.com>2014-07-22 15:05:06 -0700
commit9dae3d0d9e64c3cb8bb172f041d4e66d4b92088a (patch)
tree9fb86bab5f8f16f1812455b05efe61bb19311838 /drivers/acpi/apei
parent9a3c4145af32125c5ee39c0272662b47307a8323 (diff)
downloadlinux-9dae3d0d9e64c3cb8bb172f041d4e66d4b92088a.tar.bz2
apei, mce: Factor out APEI architecture specific MCE calls.
This commit abstracts MCE calls and provides weak corresponding default implementation for those architectures which do not need arch specific actions. Each platform willing to do additional architectural actions should provides desired function definition. It allows us to avoid wrap code into #ifdef in generic code and prevent new platform from introducing dummy stub function too. Initially, there are two APEI arch-specific calls: - arch_apei_enable_cmcff() - arch_apei_report_mem_error() Both interact with MCE driver for X86 architecture. Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org> Acked-by: Borislav Petkov <bp@suse.de> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'drivers/acpi/apei')
-rw-r--r--drivers/acpi/apei/apei-base.c13
-rw-r--r--drivers/acpi/apei/ghes.c6
-rw-r--r--drivers/acpi/apei/hest.c29
3 files changed, 16 insertions, 32 deletions
diff --git a/drivers/acpi/apei/apei-base.c b/drivers/acpi/apei/apei-base.c
index 8678dfe5366b..2cd7bdd6c8b3 100644
--- a/drivers/acpi/apei/apei-base.c
+++ b/drivers/acpi/apei/apei-base.c
@@ -745,6 +745,19 @@ struct dentry *apei_get_debugfs_dir(void)
}
EXPORT_SYMBOL_GPL(apei_get_debugfs_dir);
+int __weak arch_apei_enable_cmcff(struct acpi_hest_header *hest_hdr,
+ void *data)
+{
+ return 1;
+}
+EXPORT_SYMBOL_GPL(arch_apei_enable_cmcff);
+
+void __weak arch_apei_report_mem_error(int sev,
+ struct cper_sec_mem_err *mem_err)
+{
+}
+EXPORT_SYMBOL_GPL(arch_apei_report_mem_error);
+
int apei_osc_setup(void)
{
static u8 whea_uuid_str[] = "ed855e0c-6c90-47bf-a62a-26de0fc5ad5c";
diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index dab7cb7349df..352170a74a2e 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -49,7 +49,7 @@
#include <linux/aer.h>
#include <acpi/ghes.h>
-#include <asm/mce.h>
+#include <acpi/apei.h>
#include <asm/tlbflush.h>
#include <asm/nmi.h>
@@ -455,9 +455,7 @@ static void ghes_do_proc(struct ghes *ghes,
mem_err = (struct cper_sec_mem_err *)(gdata+1);
ghes_edac_report_mem_error(ghes, sev, mem_err);
-#ifdef CONFIG_X86_MCE
- apei_mce_report_mem_error(sev, mem_err);
-#endif
+ arch_apei_report_mem_error(sev, mem_err);
ghes_handle_memory_failure(gdata, sev);
}
#ifdef CONFIG_ACPI_APEI_PCIEAER
diff --git a/drivers/acpi/apei/hest.c b/drivers/acpi/apei/hest.c
index f5e37f32c71f..06e9b411a0a2 100644
--- a/drivers/acpi/apei/hest.c
+++ b/drivers/acpi/apei/hest.c
@@ -36,7 +36,6 @@
#include <linux/io.h>
#include <linux/platform_device.h>
#include <acpi/apei.h>
-#include <asm/mce.h>
#include "apei-internal.h"
@@ -128,33 +127,7 @@ EXPORT_SYMBOL_GPL(apei_hest_parse);
*/
static int __init hest_parse_cmc(struct acpi_hest_header *hest_hdr, void *data)
{
-#ifdef CONFIG_X86_MCE
- int i;
- struct acpi_hest_ia_corrected *cmc;
- struct acpi_hest_ia_error_bank *mc_bank;
-
- if (hest_hdr->type != ACPI_HEST_TYPE_IA32_CORRECTED_CHECK)
- return 0;
-
- cmc = (struct acpi_hest_ia_corrected *)hest_hdr;
- if (!cmc->enabled)
- return 0;
-
- /*
- * We expect HEST to provide a list of MC banks that report errors
- * in firmware first mode. Otherwise, return non-zero value to
- * indicate that we are done parsing HEST.
- */
- if (!(cmc->flags & ACPI_HEST_FIRMWARE_FIRST) || !cmc->num_hardware_banks)
- return 1;
-
- pr_info(HEST_PFX "Enabling Firmware First mode for corrected errors.\n");
-
- mc_bank = (struct acpi_hest_ia_error_bank *)(cmc + 1);
- for (i = 0; i < cmc->num_hardware_banks; i++, mc_bank++)
- mce_disable_bank(mc_bank->bank_number);
-#endif
- return 1;
+ return arch_apei_enable_cmcff(hest_hdr, data);
}
struct ghes_arr {