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-rw-r--r--drivers/acpi/acpi_extlog.c18
-rw-r--r--drivers/acpi/acpi_lpss.c1
-rw-r--r--drivers/acpi/acpi_pad.c5
-rw-r--r--drivers/acpi/apei/apei-base.c4
-rw-r--r--drivers/acpi/apei/einj.c58
-rw-r--r--drivers/acpi/apei/erst.c2
-rw-r--r--drivers/acpi/apei/ghes.c39
-rw-r--r--drivers/acpi/pci_root.c6
-rw-r--r--drivers/acpi/processor_idle.c15
9 files changed, 90 insertions, 58 deletions
diff --git a/drivers/acpi/acpi_extlog.c b/drivers/acpi/acpi_extlog.c
index 94166680b3a3..c4a5d87ede7e 100644
--- a/drivers/acpi/acpi_extlog.c
+++ b/drivers/acpi/acpi_extlog.c
@@ -11,6 +11,7 @@
#include <linux/acpi.h>
#include <linux/cper.h>
#include <linux/ratelimit.h>
+#include <linux/edac.h>
#include <asm/cpu.h>
#include <asm/mce.h>
@@ -40,6 +41,8 @@ struct extlog_l1_head {
u8 rev1[12];
};
+static int old_edac_report_status;
+
static u8 extlog_dsm_uuid[] __initdata = "663E35AF-CC10-41A4-88EA-5470AF055295";
/* L1 table related physical address */
@@ -147,7 +150,7 @@ static int extlog_print(struct notifier_block *nb, unsigned long val,
rc = print_extlog_rcd(NULL, (struct acpi_generic_status *)elog_buf, cpu);
- return NOTIFY_DONE;
+ return NOTIFY_STOP;
}
static bool __init extlog_get_l1addr(void)
@@ -193,8 +196,12 @@ static int __init extlog_init(void)
u64 cap;
int rc;
- rc = -ENODEV;
+ if (get_edac_report_status() == EDAC_REPORTING_FORCE) {
+ pr_warn("Not loading eMCA, error reporting force-enabled through EDAC.\n");
+ return -EPERM;
+ }
+ rc = -ENODEV;
rdmsrl(MSR_IA32_MCG_CAP, cap);
if (!(cap & MCG_ELOG_P))
return rc;
@@ -249,6 +256,12 @@ static int __init extlog_init(void)
if (elog_buf == NULL)
goto err_release_elog;
+ /*
+ * eMCA event report method has higher priority than EDAC method,
+ * unless EDAC event report method is mandatory.
+ */
+ old_edac_report_status = get_edac_report_status();
+ set_edac_report_status(EDAC_REPORTING_DISABLED);
mce_register_decode_chain(&extlog_mce_dec);
/* enable OS to be involved to take over management from BIOS */
((struct extlog_l1_head *)extlog_l1_addr)->flags |= FLAG_OS_OPTIN;
@@ -270,6 +283,7 @@ err:
static void __exit extlog_exit(void)
{
+ set_edac_report_status(old_edac_report_status);
mce_unregister_decode_chain(&extlog_mce_dec);
((struct extlog_l1_head *)extlog_l1_addr)->flags &= ~FLAG_OS_OPTIN;
if (extlog_l1_addr)
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index e60390597372..6745fe137b9e 100644
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -162,7 +162,6 @@ static const struct acpi_device_id acpi_lpss_device_ids[] = {
{ "80860F14", (unsigned long)&byt_sdio_dev_desc },
{ "80860F41", (unsigned long)&byt_i2c_dev_desc },
{ "INT33B2", },
- { "INT33FC", },
{ "INT3430", (unsigned long)&lpt_dev_desc },
{ "INT3431", (unsigned long)&lpt_dev_desc },
diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c
index 65610c0e7243..df96a0fe4890 100644
--- a/drivers/acpi/acpi_pad.c
+++ b/drivers/acpi/acpi_pad.c
@@ -192,10 +192,7 @@ static int power_saving_thread(void *data)
CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &cpu);
stop_critical_timings();
- __monitor((void *)&current_thread_info()->flags, 0, 0);
- smp_mb();
- if (!need_resched())
- __mwait(power_saving_mwait_eax, 1);
+ mwait_idle_with_hints(power_saving_mwait_eax, 1);
start_critical_timings();
if (lapic_marked_unstable)
diff --git a/drivers/acpi/apei/apei-base.c b/drivers/acpi/apei/apei-base.c
index 0760b75f79cc..8678dfe5366b 100644
--- a/drivers/acpi/apei/apei-base.c
+++ b/drivers/acpi/apei/apei-base.c
@@ -40,6 +40,7 @@
#include <linux/rculist.h>
#include <linux/interrupt.h>
#include <linux/debugfs.h>
+#include <asm/unaligned.h>
#include "apei-internal.h"
@@ -566,8 +567,7 @@ 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 ca0c6d7ec0d4..1be6f5564485 100644
--- a/drivers/acpi/apei/einj.c
+++ b/drivers/acpi/apei/einj.c
@@ -33,6 +33,7 @@
#include <linux/nmi.h>
#include <linux/delay.h>
#include <linux/mm.h>
+#include <asm/unaligned.h>
#include "apei-internal.h"
@@ -215,7 +216,7 @@ 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);
@@ -224,30 +225,28 @@ 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) {
@@ -415,7 +414,8 @@ out:
return rc;
}
-static int __einj_error_inject(u32 type, u64 param1, u64 param2)
+static int __einj_error_inject(u32 type, u32 flags, u64 param1, u64 param2,
+ u64 param3, u64 param4)
{
struct apei_exec_context ctx;
u64 val, trigger_paddr, timeout = FIRMWARE_TIMEOUT;
@@ -445,6 +445,12 @@ static int __einj_error_inject(u32 type, u64 param1, u64 param2)
break;
}
v5param->flags = vendor_flags;
+ } else if (flags) {
+ v5param->flags = flags;
+ v5param->memory_address = param1;
+ v5param->memory_address_range = param2;
+ v5param->apicid = param3;
+ v5param->pcie_sbdf = param4;
} else {
switch (type) {
case ACPI_EINJ_PROCESSOR_CORRECTABLE:
@@ -513,11 +519,17 @@ static int __einj_error_inject(u32 type, u64 param1, u64 param2)
}
/* Inject the specified hardware error */
-static int einj_error_inject(u32 type, u64 param1, u64 param2)
+static int einj_error_inject(u32 type, u32 flags, u64 param1, u64 param2,
+ u64 param3, u64 param4)
{
int rc;
unsigned long pfn;
+ /* If user manually set "flags", make sure it is legal */
+ if (flags && (flags &
+ ~(SETWA_FLAGS_APICID|SETWA_FLAGS_MEM|SETWA_FLAGS_PCIE_SBDF)))
+ return -EINVAL;
+
/*
* We need extra sanity checks for memory errors.
* Other types leap directly to injection.
@@ -531,7 +543,7 @@ static int einj_error_inject(u32 type, u64 param1, u64 param2)
if (type & ACPI5_VENDOR_BIT) {
if (vendor_flags != SETWA_FLAGS_MEM)
goto inject;
- } else if (!(type & MEM_ERROR_MASK))
+ } else if (!(type & MEM_ERROR_MASK) && !(flags & SETWA_FLAGS_MEM))
goto inject;
/*
@@ -545,15 +557,18 @@ static int einj_error_inject(u32 type, u64 param1, u64 param2)
inject:
mutex_lock(&einj_mutex);
- rc = __einj_error_inject(type, param1, param2);
+ rc = __einj_error_inject(type, flags, param1, param2, param3, param4);
mutex_unlock(&einj_mutex);
return rc;
}
static u32 error_type;
+static u32 error_flags;
static u64 error_param1;
static u64 error_param2;
+static u64 error_param3;
+static u64 error_param4;
static struct dentry *einj_debug_dir;
static int available_error_type_show(struct seq_file *m, void *v)
@@ -647,7 +662,8 @@ static int error_inject_set(void *data, u64 val)
if (!error_type)
return -EINVAL;
- return einj_error_inject(error_type, error_param1, error_param2);
+ return einj_error_inject(error_type, error_flags, error_param1, error_param2,
+ error_param3, error_param4);
}
DEFINE_SIMPLE_ATTRIBUTE(error_inject_fops, NULL,
@@ -728,6 +744,10 @@ static int __init einj_init(void)
rc = -ENOMEM;
einj_param = einj_get_parameter_address();
if ((param_extension || acpi5) && einj_param) {
+ fentry = debugfs_create_x32("flags", S_IRUSR | S_IWUSR,
+ einj_debug_dir, &error_flags);
+ if (!fentry)
+ goto err_unmap;
fentry = debugfs_create_x64("param1", S_IRUSR | S_IWUSR,
einj_debug_dir, &error_param1);
if (!fentry)
@@ -736,6 +756,14 @@ static int __init einj_init(void)
einj_debug_dir, &error_param2);
if (!fentry)
goto err_unmap;
+ fentry = debugfs_create_x64("param3", S_IRUSR | S_IWUSR,
+ einj_debug_dir, &error_param3);
+ if (!fentry)
+ goto err_unmap;
+ fentry = debugfs_create_x64("param4", S_IRUSR | S_IWUSR,
+ einj_debug_dir, &error_param4);
+ if (!fentry)
+ goto err_unmap;
fentry = debugfs_create_x32("notrigger", S_IRUSR | S_IWUSR,
einj_debug_dir, &notrigger);
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 694c486a12ed..dab7cb7349df 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -412,27 +412,31 @@ 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
}
@@ -452,8 +456,7 @@ 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);
}
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index afafee56cf8b..c1c4102e6478 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -604,7 +604,9 @@ static int acpi_pci_root_add(struct acpi_device *device,
pci_assign_unassigned_root_bus_resources(root->bus);
}
+ pci_lock_rescan_remove();
pci_bus_add_devices(root->bus);
+ pci_unlock_rescan_remove();
return 1;
end:
@@ -616,6 +618,8 @@ static void acpi_pci_root_remove(struct acpi_device *device)
{
struct acpi_pci_root *root = acpi_driver_data(device);
+ pci_lock_rescan_remove();
+
pci_stop_root_bus(root->bus);
device_set_run_wake(root->bus->bridge, false);
@@ -623,6 +627,8 @@ static void acpi_pci_root_remove(struct acpi_device *device)
pci_remove_root_bus(root->bus);
+ pci_unlock_rescan_remove();
+
kfree(root);
}
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 1fc455b8ce17..3dca36d4ad26 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -725,11 +725,6 @@ static int acpi_idle_enter_c1(struct cpuidle_device *dev,
if (unlikely(!pr))
return -EINVAL;
- if (cx->entry_method == ACPI_CSTATE_FFH) {
- if (current_set_polling_and_test())
- return -EINVAL;
- }
-
lapic_timer_state_broadcast(pr, cx, 1);
acpi_idle_do_entry(cx);
@@ -790,11 +785,6 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev,
return acpi_idle_enter_c1(dev, drv, CPUIDLE_DRIVER_STATE_START);
#endif
- if (cx->entry_method == ACPI_CSTATE_FFH) {
- if (current_set_polling_and_test())
- return -EINVAL;
- }
-
/*
* Must be done before busmaster disable as we might need to
* access HPET !
@@ -853,11 +843,6 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev,
}
}
- if (cx->entry_method == ACPI_CSTATE_FFH) {
- if (current_set_polling_and_test())
- return -EINVAL;
- }
-
acpi_unlazy_tlb(smp_processor_id());
/* Tell the scheduler that we are going deep-idle: */
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-18 11:22:30 +0000