summaryrefslogtreecommitdiff
path: root/drivers/acpi/apei
diff options
context:
space:
mode:
authorIngo Molnar <mingo@kernel.org>2014-01-12 20:56:54 +0400
committerIngo Molnar <mingo@kernel.org>2014-01-12 20:56:54 +0400
commitb769e014f3ae4af8a56c6327077b3c40410dedad (patch)
treebeeaa315d7287b96f2813d8d060c43f2658a07b8 /drivers/acpi/apei
parentda4540757d35a98a350d6e8d882a64b2d04f8581 (diff)
parent4f75d8412792777a314ac5c1393a9ed43d695fd1 (diff)
downloadlinux-b769e014f3ae4af8a56c6327077b3c40410dedad.tar.xz
Merge tag 'ras_for_3.14_p2' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras into x86/ras
Pull RAS updates from Borislav Petkov: " SCI reporting for other error types not only correctable ones + APEI GHES cleanups + mce timer fix " Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/acpi/apei')
-rw-r--r--drivers/acpi/apei/apei-base.c4
-rw-r--r--drivers/acpi/apei/einj.c19
-rw-r--r--drivers/acpi/apei/erst.c2
-rw-r--r--drivers/acpi/apei/ghes.c39
4 files changed, 33 insertions, 31 deletions
diff --git a/drivers/acpi/apei/apei-base.c b/drivers/acpi/apei/apei-base.c
index 6d2c49b86b7f..e55584a072c6 100644
--- a/drivers/acpi/apei/apei-base.c
+++ b/drivers/acpi/apei/apei-base.c
@@ -41,6 +41,7 @@
#include <linux/rculist.h>
#include <linux/interrupt.h>
#include <linux/debugfs.h>
+#include <asm/unaligned.h>
#include "apei-internal.h"
@@ -567,8 +568,7 @@ static int apei_check_gar(struct acpi_generic_address *reg, u64 *paddr,
bit_offset = reg->bit_offset;
access_size_code = reg->access_width;
space_id = reg->space_id;
- /* Handle possible alignment issues */
- memcpy(paddr, &reg->address, sizeof(*paddr));
+ *paddr = get_unaligned(&reg->address);
if (!*paddr) {
pr_warning(FW_BUG APEI_PFX
"Invalid physical address in GAR [0x%llx/%u/%u/%u/%u]\n",
diff --git a/drivers/acpi/apei/einj.c b/drivers/acpi/apei/einj.c
index c76674e2a01f..7dcc8a824aae 100644
--- a/drivers/acpi/apei/einj.c
+++ b/drivers/acpi/apei/einj.c
@@ -34,6 +34,7 @@
#include <linux/delay.h>
#include <linux/mm.h>
#include <acpi/acpi.h>
+#include <asm/unaligned.h>
#include "apei-internal.h"
@@ -216,7 +217,7 @@ static void check_vendor_extension(u64 paddr,
static void *einj_get_parameter_address(void)
{
int i;
- u64 paddrv4 = 0, paddrv5 = 0;
+ u64 pa_v4 = 0, pa_v5 = 0;
struct acpi_whea_header *entry;
entry = EINJ_TAB_ENTRY(einj_tab);
@@ -225,30 +226,28 @@ static void *einj_get_parameter_address(void)
entry->instruction == ACPI_EINJ_WRITE_REGISTER &&
entry->register_region.space_id ==
ACPI_ADR_SPACE_SYSTEM_MEMORY)
- memcpy(&paddrv4, &entry->register_region.address,
- sizeof(paddrv4));
+ pa_v4 = get_unaligned(&entry->register_region.address);
if (entry->action == ACPI_EINJ_SET_ERROR_TYPE_WITH_ADDRESS &&
entry->instruction == ACPI_EINJ_WRITE_REGISTER &&
entry->register_region.space_id ==
ACPI_ADR_SPACE_SYSTEM_MEMORY)
- memcpy(&paddrv5, &entry->register_region.address,
- sizeof(paddrv5));
+ pa_v5 = get_unaligned(&entry->register_region.address);
entry++;
}
- if (paddrv5) {
+ if (pa_v5) {
struct set_error_type_with_address *v5param;
- v5param = acpi_os_map_memory(paddrv5, sizeof(*v5param));
+ v5param = acpi_os_map_memory(pa_v5, sizeof(*v5param));
if (v5param) {
acpi5 = 1;
- check_vendor_extension(paddrv5, v5param);
+ check_vendor_extension(pa_v5, v5param);
return v5param;
}
}
- if (param_extension && paddrv4) {
+ if (param_extension && pa_v4) {
struct einj_parameter *v4param;
- v4param = acpi_os_map_memory(paddrv4, sizeof(*v4param));
+ v4param = acpi_os_map_memory(pa_v4, sizeof(*v4param));
if (!v4param)
return NULL;
if (v4param->reserved1 || v4param->reserved2) {
diff --git a/drivers/acpi/apei/erst.c b/drivers/acpi/apei/erst.c
index cb1d557fc22c..ed65e9c4b5b0 100644
--- a/drivers/acpi/apei/erst.c
+++ b/drivers/acpi/apei/erst.c
@@ -611,7 +611,7 @@ static void __erst_record_id_cache_compact(void)
if (entries[i] == APEI_ERST_INVALID_RECORD_ID)
continue;
if (wpos != i)
- memcpy(&entries[wpos], &entries[i], sizeof(entries[i]));
+ entries[wpos] = entries[i];
wpos++;
}
erst_record_id_cache.len = wpos;
diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index a30bc313787b..46766ef7ef5d 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -413,27 +413,31 @@ static void ghes_handle_memory_failure(struct acpi_generic_data *gdata, int sev)
{
#ifdef CONFIG_ACPI_APEI_MEMORY_FAILURE
unsigned long pfn;
+ int flags = -1;
int sec_sev = ghes_severity(gdata->error_severity);
struct cper_sec_mem_err *mem_err;
mem_err = (struct cper_sec_mem_err *)(gdata + 1);
- if (sec_sev == GHES_SEV_CORRECTED &&
- (gdata->flags & CPER_SEC_ERROR_THRESHOLD_EXCEEDED) &&
- (mem_err->validation_bits & CPER_MEM_VALID_PA)) {
- pfn = mem_err->physical_addr >> PAGE_SHIFT;
- if (pfn_valid(pfn))
- memory_failure_queue(pfn, 0, MF_SOFT_OFFLINE);
- else if (printk_ratelimit())
- pr_warn(FW_WARN GHES_PFX
- "Invalid address in generic error data: %#llx\n",
- mem_err->physical_addr);
- }
- if (sev == GHES_SEV_RECOVERABLE &&
- sec_sev == GHES_SEV_RECOVERABLE &&
- mem_err->validation_bits & CPER_MEM_VALID_PA) {
- pfn = mem_err->physical_addr >> PAGE_SHIFT;
- memory_failure_queue(pfn, 0, 0);
+ if (!(mem_err->validation_bits & CPER_MEM_VALID_PA))
+ return;
+
+ pfn = mem_err->physical_addr >> PAGE_SHIFT;
+ if (!pfn_valid(pfn)) {
+ pr_warn_ratelimited(FW_WARN GHES_PFX
+ "Invalid address in generic error data: %#llx\n",
+ mem_err->physical_addr);
+ return;
}
+
+ /* iff following two events can be handled properly by now */
+ if (sec_sev == GHES_SEV_CORRECTED &&
+ (gdata->flags & CPER_SEC_ERROR_THRESHOLD_EXCEEDED))
+ flags = MF_SOFT_OFFLINE;
+ if (sev == GHES_SEV_RECOVERABLE && sec_sev == GHES_SEV_RECOVERABLE)
+ flags = 0;
+
+ if (flags != -1)
+ memory_failure_queue(pfn, 0, flags);
#endif
}
@@ -453,8 +457,7 @@ static void ghes_do_proc(struct ghes *ghes,
ghes_edac_report_mem_error(ghes, sev, mem_err);
#ifdef CONFIG_X86_MCE
- apei_mce_report_mem_error(sev == GHES_SEV_CORRECTED,
- mem_err);
+ apei_mce_report_mem_error(sev, mem_err);
#endif
ghes_handle_memory_failure(gdata, sev);
}