[PATCH v2 07/11] drm/xe/cper: Allow hardware error CPER reporting from xe_log

[Badal Nilawar <badal.nilawar@intel.com>]

Add xe_emit_hardware_error_cper() as a public wrapper around the
internal hardware CPER emission helper, enabling xe_log.c to emit
hardware error CPER records.

Signed-off-by: Badal Nilawar <badal.nilawar@intel.com>
---
 drivers/gpu/drm/xe/xe_log.c | 17 +++++++++++------
 drivers/gpu/drm/xe/xe_ras.c | 23 +++++++++++++++++++++++
 drivers/gpu/drm/xe/xe_ras.h |  4 ++++
 3 files changed, 38 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_log.c b/drivers/gpu/drm/xe/xe_log.c
index 5549ef6966fd..c78fc195c55b 100644
--- a/drivers/gpu/drm/xe/xe_log.c
+++ b/drivers/gpu/drm/xe/xe_log.c
@@ -10,15 +10,25 @@
 
 #include "xe_device.h"
 #include "xe_log.h"
+#include "xe_ras.h"
 #include "xe_printk.h"
 
+static bool is_hw_sigid(enum xe_sigid sigid)
+{
+	return (int)sigid >= INTEL_SIGID_GPU_XE_HARDWARE_START;
+}
+
 static void log_emit_cper(struct pci_dev *pdev, int cper_sev, enum xe_sigid sigid,
 			  u32 component, u32 location, const void *data, size_t len,
 			  struct va_format *vaf)
 {
 	KUNIT_STATIC_STUB_REDIRECT(log_emit_cper, pdev, cper_sev, sigid,
 				   component, location, data, len, vaf);
-	/* TODO */
+	/* TODO software CPER */
+
+	if (is_hw_sigid(sigid))
+		xe_emit_hardware_error_cper(pdev, cper_sev, sigid,
+					    (struct xe_ras_error_class *)data);
 }
 
 static const char *log_unknown_component_prefix(u32 component)
@@ -100,11 +110,6 @@ static const char *log_location_prefix(struct pci_dev *pdev, u32 location, char
 	return buf;
 }
 
-static bool is_hw_sigid(enum xe_sigid sigid)
-{
-	return (int)sigid >= INTEL_SIGID_GPU_XE_HARDWARE_START;
-}
-
 static bool is_sev_error(int cper_sev)
 {
 	return cper_sev != CPER_SEV_INFORMATIONAL;
diff --git a/drivers/gpu/drm/xe/xe_ras.c b/drivers/gpu/drm/xe/xe_ras.c
index ff9d917b8e29..b4cdb5ec6491 100644
--- a/drivers/gpu/drm/xe/xe_ras.c
+++ b/drivers/gpu/drm/xe/xe_ras.c
@@ -837,6 +837,29 @@ static void emit_hw_error_cper(struct xe_device *xe,
 	}
 }
 
+/**
+ * xe_emit_hardware_error_cper() - Emit a hardware error CPER record
+ * @pdev: PCI device associated with the Xe device
+ * @cper_sev: CPER severity
+ * @sigid: Error signature identifier
+ * @error_class: Hardware error classification details
+ *
+ * Emit a CPER record for a hardware error
+ */
+void xe_emit_hardware_error_cper(struct pci_dev *pdev, int cper_sev, enum xe_sigid sigid,
+				 struct xe_ras_error_class *counter)
+{
+	struct xe_device *xe = pdev_to_xe_device(pdev);
+
+	if (!xe)
+		return;
+
+	if (counter && !ras_counter_is_valid(xe, counter))
+		return;
+
+	emit_hw_error_cper(xe, counter, NULL, sigid, cper_sev);
+}
+
 /**
  * xe_ras_process_errors() - Process and contain hardware errors
  * @xe: xe device instance
diff --git a/drivers/gpu/drm/xe/xe_ras.h b/drivers/gpu/drm/xe/xe_ras.h
index 618364734043..e5c4b2e2e1fd 100644
--- a/drivers/gpu/drm/xe/xe_ras.h
+++ b/drivers/gpu/drm/xe/xe_ras.h
@@ -7,6 +7,8 @@
 #define _XE_RAS_H_
 
 #include <linux/types.h>
+#include "abi/xe_sigid_abi.h"
+#include "xe_device.h"
 #include "xe_ras_types.h"
 
 struct xe_device;
@@ -18,5 +20,7 @@ int xe_ras_get_counter(struct xe_device *xe, u8 severity, u8 component, u32 *val
 int xe_ras_clear_counter(struct xe_device *xe, u8 severity, u8 component);
 void xe_ras_init(struct xe_device *xe);
 enum xe_ras_recovery_action xe_ras_process_errors(struct xe_device *xe);
+void xe_emit_hardware_error_cper(struct pci_dev *pdev, int cper_sev, enum xe_sigid sigid,
+				 struct xe_ras_error_class *error_class);
 
 #endif
-- 
2.54.0