From: jsg <jsg@openbsd.org>
Date: Fri, 31 Mar 2023 01:44:03 +0000 (+0000)
Subject: drm/i915/guc: Fix missing ecodes
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=fffa8a6ab3c7fdecba2f37a2b52bad193e6eadd2;p=openbsd

drm/i915/guc: Fix missing ecodes

From John Harrison
be8c6ad6b16e6181510e35c53928381f0f39640a in linux-6.1.y/6.1.22
8df23e4c4f72f4e201c28e6fb0a67e2dbf30628a in mainline linux
---

diff --git a/sys/dev/pci/drm/i915/gt/uc/intel_guc_capture.c b/sys/dev/pci/drm/i915/gt/uc/intel_guc_capture.c
index 13118609339..1e1fa20fb41 100644
--- a/sys/dev/pci/drm/i915/gt/uc/intel_guc_capture.c
+++ b/sys/dev/pci/drm/i915/gt/uc/intel_guc_capture.c
@@ -1556,6 +1556,27 @@ int intel_guc_capture_print_engine_node(struct drm_i915_error_state_buf *ebuf,
 
 #endif //CONFIG_DRM_I915_CAPTURE_ERROR
 
+static void guc_capture_find_ecode(struct intel_engine_coredump *ee)
+{
+	struct gcap_reg_list_info *reginfo;
+	struct guc_mmio_reg *regs;
+	i915_reg_t reg_ipehr = RING_IPEHR(0);
+	i915_reg_t reg_instdone = RING_INSTDONE(0);
+	int i;
+
+	if (!ee->guc_capture_node)
+		return;
+
+	reginfo = ee->guc_capture_node->reginfo + GUC_CAPTURE_LIST_TYPE_ENGINE_INSTANCE;
+	regs = reginfo->regs;
+	for (i = 0; i < reginfo->num_regs; i++) {
+		if (regs[i].offset == reg_ipehr.reg)
+			ee->ipehr = regs[i].value;
+		else if (regs[i].offset == reg_instdone.reg)
+			ee->instdone.instdone = regs[i].value;
+	}
+}
+
 void intel_guc_capture_free_node(struct intel_engine_coredump *ee)
 {
 	if (!ee || !ee->guc_capture_node)
@@ -1597,6 +1618,7 @@ void intel_guc_capture_get_matching_node(struct intel_gt *gt,
 			list_del(&n->link);
 			ee->guc_capture_node = n;
 			ee->guc_capture = guc->capture;
+			guc_capture_find_ecode(ee);
 			return;
 		}
 	}