@@ -25,6 +25,7 @@
* GNU General Public License for more details.
*/
+#include <linux/arm_sdei.h>
#include <linux/kernel.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
@@ -59,7 +60,7 @@
#define GHES_PFX "GHES: "
-#if defined(CONFIG_HAVE_ACPI_APEI_NMI) || defined(CONFIG_ACPI_APEI_SEA)
+#if defined(CONFIG_HAVE_ACPI_APEI_NMI) || defined(CONFIG_ACPI_APEI_SEA) || defined(CONFIG_ARM_SDE_INTERFACE)
#define WANT_NMI_ESTATUS_QUEUE 1
#endif
@@ -751,7 +752,7 @@ static int _in_nmi_notify_one(struct ghes *ghes)
return 0;
}
-static int ghes_estatus_queue_notified(struct list_head *rcu_list)
+static int __maybe_unused ghes_estatus_queue_notified(struct list_head *rcu_list)
{
int ret = -ENOENT;
struct ghes *ghes;
@@ -1045,6 +1046,49 @@ static inline void ghes_nmi_add(struct ghes *ghes) { }
static inline void ghes_nmi_remove(struct ghes *ghes) { }
#endif /* CONFIG_HAVE_ACPI_APEI_NMI */
+static int ghes_sdei_callback(u32 event_num, struct pt_regs *regs, void *arg)
+{
+ struct ghes *ghes = arg;
+
+ if (!_in_nmi_notify_one(ghes)) {
+ if (IS_ENABLED(CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG))
+ irq_work_queue(&ghes_proc_irq_work);
+
+ return 0;
+ }
+
+ return -ENOENT;
+}
+
+static int apei_sdei_register_ghes(struct ghes *ghes)
+{
+ int err = -EINVAL;
+
+ if (IS_ENABLED(CONFIG_ARM_SDE_INTERFACE)) {
+ ghes_estatus_queue_grow_pool(ghes);
+
+ err = sdei_register_ghes(ghes, ghes_sdei_callback);
+ if (err)
+ ghes_estatus_queue_shrink_pool(ghes);
+ }
+
+ return err;
+}
+
+static int apei_sdei_unregister_ghes(struct ghes *ghes)
+{
+ int err = -EINVAL;
+
+ if (IS_ENABLED(CONFIG_ARM_SDE_INTERFACE)) {
+ err = sdei_unregister_ghes(ghes);
+
+ if (!err)
+ ghes_estatus_queue_shrink_pool(ghes);
+ }
+
+ return err;
+}
+
static int ghes_probe(struct platform_device *ghes_dev)
{
struct acpi_hest_generic *generic;
@@ -1079,6 +1123,13 @@ static int ghes_probe(struct platform_device *ghes_dev)
goto err;
}
break;
+ case ACPI_HEST_NOTIFY_SOFTWARE_DELEGATED:
+ if (!IS_ENABLED(CONFIG_ARM_SDE_INTERFACE)) {
+ pr_warn(GHES_PFX "Generic hardware error source: %d notified via SDE Interface is not supported!\n",
+ generic->header.source_id);
+ goto err;
+ }
+ break;
case ACPI_HEST_NOTIFY_LOCAL:
pr_warning(GHES_PFX "Generic hardware error source: %d notified via local interrupt is not supported!\n",
generic->header.source_id);
@@ -1146,6 +1197,11 @@ static int ghes_probe(struct platform_device *ghes_dev)
case ACPI_HEST_NOTIFY_NMI:
ghes_nmi_add(ghes);
break;
+ case ACPI_HEST_NOTIFY_SOFTWARE_DELEGATED:
+ rc = apei_sdei_register_ghes(ghes);
+ if (rc)
+ goto err_edac_unreg;
+ break;
default:
BUG();
}
@@ -1167,6 +1223,7 @@ static int ghes_probe(struct platform_device *ghes_dev)
static int ghes_remove(struct platform_device *ghes_dev)
{
+ int rc;
struct ghes *ghes;
struct acpi_hest_generic *generic;
@@ -1199,6 +1256,11 @@ static int ghes_remove(struct platform_device *ghes_dev)
case ACPI_HEST_NOTIFY_NMI:
ghes_nmi_remove(ghes);
break;
+ case ACPI_HEST_NOTIFY_SOFTWARE_DELEGATED:
+ rc = apei_sdei_unregister_ghes(ghes);
+ if (rc)
+ return rc;
+ break;
default:
BUG();
break;
@@ -12,7 +12,10 @@ enum sdei_conduit_types {
};
#include <acpi/ghes.h>
+
+#ifdef CONFIG_ARM_SDE_INTERFACE
#include <asm/sdei.h>
+#endif
/* Arch code should override this to set the entry point from firmware... */
#ifndef sdei_arch_get_entry_point