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path: root/drivers/acpi/apei/ghes.c
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Diffstat (limited to 'drivers/acpi/apei/ghes.c')
-rw-r--r--drivers/acpi/apei/ghes.c102
1 files changed, 83 insertions, 19 deletions
diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index b8e08cb67a1..b3207e16670 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -33,6 +33,7 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/acpi.h>
+#include <linux/acpi_io.h>
#include <linux/io.h>
#include <linux/interrupt.h>
#include <linux/timer.h>
@@ -45,8 +46,9 @@
#include <linux/irq_work.h>
#include <linux/llist.h>
#include <linux/genalloc.h>
+#include <linux/pci.h>
+#include <linux/aer.h>
#include <acpi/apei.h>
-#include <acpi/atomicio.h>
#include <acpi/hed.h>
#include <asm/mce.h>
#include <asm/tlbflush.h>
@@ -299,7 +301,7 @@ static struct ghes *ghes_new(struct acpi_hest_generic *generic)
if (!ghes)
return ERR_PTR(-ENOMEM);
ghes->generic = generic;
- rc = acpi_pre_map_gar(&generic->error_status_address);
+ rc = acpi_os_map_generic_address(&generic->error_status_address);
if (rc)
goto err_free;
error_block_length = generic->error_block_length;
@@ -319,7 +321,7 @@ static struct ghes *ghes_new(struct acpi_hest_generic *generic)
return ghes;
err_unmap:
- acpi_post_unmap_gar(&generic->error_status_address);
+ acpi_os_unmap_generic_address(&generic->error_status_address);
err_free:
kfree(ghes);
return ERR_PTR(rc);
@@ -328,7 +330,7 @@ err_free:
static void ghes_fini(struct ghes *ghes)
{
kfree(ghes->estatus);
- acpi_post_unmap_gar(&ghes->generic->error_status_address);
+ acpi_os_unmap_generic_address(&ghes->generic->error_status_address);
}
enum {
@@ -399,7 +401,7 @@ static int ghes_read_estatus(struct ghes *ghes, int silent)
u32 len;
int rc;
- rc = acpi_atomic_read(&buf_paddr, &g->error_status_address);
+ rc = apei_read(&buf_paddr, &g->error_status_address);
if (rc) {
if (!silent && printk_ratelimit())
pr_warning(FW_WARN GHES_PFX
@@ -476,6 +478,27 @@ static void ghes_do_proc(const struct acpi_hest_generic_status *estatus)
}
#endif
}
+#ifdef CONFIG_ACPI_APEI_PCIEAER
+ else if (!uuid_le_cmp(*(uuid_le *)gdata->section_type,
+ CPER_SEC_PCIE)) {
+ struct cper_sec_pcie *pcie_err;
+ pcie_err = (struct cper_sec_pcie *)(gdata+1);
+ if (sev == GHES_SEV_RECOVERABLE &&
+ sec_sev == GHES_SEV_RECOVERABLE &&
+ pcie_err->validation_bits & CPER_PCIE_VALID_DEVICE_ID &&
+ pcie_err->validation_bits & CPER_PCIE_VALID_AER_INFO) {
+ unsigned int devfn;
+ int aer_severity;
+ devfn = PCI_DEVFN(pcie_err->device_id.device,
+ pcie_err->device_id.function);
+ aer_severity = cper_severity_to_aer(sev);
+ aer_recover_queue(pcie_err->device_id.segment,
+ pcie_err->device_id.bus,
+ devfn, aer_severity);
+ }
+
+ }
+#endif
}
}
@@ -483,16 +506,22 @@ static void __ghes_print_estatus(const char *pfx,
const struct acpi_hest_generic *generic,
const struct acpi_hest_generic_status *estatus)
{
+ static atomic_t seqno;
+ unsigned int curr_seqno;
+ char pfx_seq[64];
+
if (pfx == NULL) {
if (ghes_severity(estatus->error_severity) <=
GHES_SEV_CORRECTED)
- pfx = KERN_WARNING HW_ERR;
+ pfx = KERN_WARNING;
else
- pfx = KERN_ERR HW_ERR;
+ pfx = KERN_ERR;
}
+ curr_seqno = atomic_inc_return(&seqno);
+ snprintf(pfx_seq, sizeof(pfx_seq), "%s{%u}" HW_ERR, pfx, curr_seqno);
printk("%s""Hardware error from APEI Generic Hardware Error Source: %d\n",
- pfx, generic->header.source_id);
- apei_estatus_print(pfx, estatus);
+ pfx_seq, generic->header.source_id);
+ apei_estatus_print(pfx_seq, estatus);
}
static int ghes_print_estatus(const char *pfx,
@@ -711,26 +740,34 @@ static int ghes_notify_sci(struct notifier_block *this,
return ret;
}
+static struct llist_node *llist_nodes_reverse(struct llist_node *llnode)
+{
+ struct llist_node *next, *tail = NULL;
+
+ while (llnode) {
+ next = llnode->next;
+ llnode->next = tail;
+ tail = llnode;
+ llnode = next;
+ }
+
+ return tail;
+}
+
static void ghes_proc_in_irq(struct irq_work *irq_work)
{
- struct llist_node *llnode, *next, *tail = NULL;
+ struct llist_node *llnode, *next;
struct ghes_estatus_node *estatus_node;
struct acpi_hest_generic *generic;
struct acpi_hest_generic_status *estatus;
u32 len, node_len;
+ llnode = llist_del_all(&ghes_estatus_llist);
/*
* Because the time order of estatus in list is reversed,
* revert it back to proper order.
*/
- llnode = llist_del_all(&ghes_estatus_llist);
- while (llnode) {
- next = llnode->next;
- llnode->next = tail;
- tail = llnode;
- llnode = next;
- }
- llnode = tail;
+ llnode = llist_nodes_reverse(llnode);
while (llnode) {
next = llnode->next;
estatus_node = llist_entry(llnode, struct ghes_estatus_node,
@@ -750,6 +787,32 @@ static void ghes_proc_in_irq(struct irq_work *irq_work)
}
}
+static void ghes_print_queued_estatus(void)
+{
+ struct llist_node *llnode;
+ struct ghes_estatus_node *estatus_node;
+ struct acpi_hest_generic *generic;
+ struct acpi_hest_generic_status *estatus;
+ u32 len, node_len;
+
+ llnode = llist_del_all(&ghes_estatus_llist);
+ /*
+ * Because the time order of estatus in list is reversed,
+ * revert it back to proper order.
+ */
+ llnode = llist_nodes_reverse(llnode);
+ while (llnode) {
+ estatus_node = llist_entry(llnode, struct ghes_estatus_node,
+ llnode);
+ estatus = GHES_ESTATUS_FROM_NODE(estatus_node);
+ len = apei_estatus_len(estatus);
+ node_len = GHES_ESTATUS_NODE_LEN(len);
+ generic = estatus_node->generic;
+ ghes_print_estatus(NULL, generic, estatus);
+ llnode = llnode->next;
+ }
+}
+
static int ghes_notify_nmi(unsigned int cmd, struct pt_regs *regs)
{
struct ghes *ghes, *ghes_global = NULL;
@@ -775,7 +838,8 @@ static int ghes_notify_nmi(unsigned int cmd, struct pt_regs *regs)
if (sev_global >= GHES_SEV_PANIC) {
oops_begin();
- __ghes_print_estatus(KERN_EMERG HW_ERR, ghes_global->generic,
+ ghes_print_queued_estatus();
+ __ghes_print_estatus(KERN_EMERG, ghes_global->generic,
ghes_global->estatus);
/* reboot to log the error! */
if (panic_timeout == 0)
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-25 21:56:43 +0000