1 files changed, 107 insertions, 25 deletions

diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c
index 8f1165146013..1c1b85073b4b 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c
@@ -132,6 +132,11 @@ static const struct __guc_mmio_reg_descr xe_lpd_blt_inst_regs[] = {
 	COMMON_BASE_ENGINE_INSTANCE,
 };
 
+/* XE_LPD - GSC Per-Engine-Instance */
+static const struct __guc_mmio_reg_descr xe_lpd_gsc_inst_regs[] = {
+	COMMON_BASE_ENGINE_INSTANCE,
+};
+
 /* GEN9 - Global */
 static const struct __guc_mmio_reg_descr default_global_regs[] = {
 	COMMON_BASE_GLOBAL,
@@ -165,16 +170,20 @@ static const struct __guc_mmio_reg_descr empty_regs_list[] = {
 	}
 
 /* List of lists */
-static struct __guc_mmio_reg_descr_group default_lists[] = {
+static const struct __guc_mmio_reg_descr_group default_lists[] = {
 	MAKE_REGLIST(default_global_regs, PF, GLOBAL, 0),
 	MAKE_REGLIST(default_rc_class_regs, PF, ENGINE_CLASS, GUC_RENDER_CLASS),
 	MAKE_REGLIST(xe_lpd_rc_inst_regs, PF, ENGINE_INSTANCE, GUC_RENDER_CLASS),
+	MAKE_REGLIST(default_rc_class_regs, PF, ENGINE_CLASS, GUC_COMPUTE_CLASS),
+	MAKE_REGLIST(xe_lpd_rc_inst_regs, PF, ENGINE_INSTANCE, GUC_COMPUTE_CLASS),
 	MAKE_REGLIST(empty_regs_list, PF, ENGINE_CLASS, GUC_VIDEO_CLASS),
 	MAKE_REGLIST(xe_lpd_vd_inst_regs, PF, ENGINE_INSTANCE, GUC_VIDEO_CLASS),
 	MAKE_REGLIST(empty_regs_list, PF, ENGINE_CLASS, GUC_VIDEOENHANCE_CLASS),
 	MAKE_REGLIST(xe_lpd_vec_inst_regs, PF, ENGINE_INSTANCE, GUC_VIDEOENHANCE_CLASS),
 	MAKE_REGLIST(empty_regs_list, PF, ENGINE_CLASS, GUC_BLITTER_CLASS),
 	MAKE_REGLIST(xe_lpd_blt_inst_regs, PF, ENGINE_INSTANCE, GUC_BLITTER_CLASS),
+	MAKE_REGLIST(empty_regs_list, PF, ENGINE_CLASS, GUC_GSC_OTHER_CLASS),
+	MAKE_REGLIST(xe_lpd_gsc_inst_regs, PF, ENGINE_INSTANCE, GUC_GSC_OTHER_CLASS),
 	{}
 };
 
@@ -182,12 +191,16 @@ static const struct __guc_mmio_reg_descr_group xe_lpd_lists[] = {
 	MAKE_REGLIST(xe_lpd_global_regs, PF, GLOBAL, 0),
 	MAKE_REGLIST(xe_lpd_rc_class_regs, PF, ENGINE_CLASS, GUC_RENDER_CLASS),
 	MAKE_REGLIST(xe_lpd_rc_inst_regs, PF, ENGINE_INSTANCE, GUC_RENDER_CLASS),
+	MAKE_REGLIST(xe_lpd_rc_class_regs, PF, ENGINE_CLASS, GUC_COMPUTE_CLASS),
+	MAKE_REGLIST(xe_lpd_rc_inst_regs, PF, ENGINE_INSTANCE, GUC_COMPUTE_CLASS),
 	MAKE_REGLIST(empty_regs_list, PF, ENGINE_CLASS, GUC_VIDEO_CLASS),
 	MAKE_REGLIST(xe_lpd_vd_inst_regs, PF, ENGINE_INSTANCE, GUC_VIDEO_CLASS),
 	MAKE_REGLIST(xe_lpd_vec_class_regs, PF, ENGINE_CLASS, GUC_VIDEOENHANCE_CLASS),
 	MAKE_REGLIST(xe_lpd_vec_inst_regs, PF, ENGINE_INSTANCE, GUC_VIDEOENHANCE_CLASS),
 	MAKE_REGLIST(empty_regs_list, PF, ENGINE_CLASS, GUC_BLITTER_CLASS),
 	MAKE_REGLIST(xe_lpd_blt_inst_regs, PF, ENGINE_INSTANCE, GUC_BLITTER_CLASS),
+	MAKE_REGLIST(empty_regs_list, PF, ENGINE_CLASS, GUC_GSC_OTHER_CLASS),
+	MAKE_REGLIST(xe_lpd_gsc_inst_regs, PF, ENGINE_INSTANCE, GUC_GSC_OTHER_CLASS),
 	{}
 };
 
@@ -240,19 +253,19 @@ static void guc_capture_free_extlists(struct __guc_mmio_reg_descr_group *reglist
 
 struct __ext_steer_reg {
 	const char *name;
-	i915_reg_t reg;
+	i915_mcr_reg_t reg;
 };
 
 static const struct __ext_steer_reg xe_extregs[] = {
-	{"GEN7_SAMPLER_INSTDONE", GEN7_SAMPLER_INSTDONE},
-	{"GEN7_ROW_INSTDONE", GEN7_ROW_INSTDONE}
+	{"GEN8_SAMPLER_INSTDONE", GEN8_SAMPLER_INSTDONE},
+	{"GEN8_ROW_INSTDONE", GEN8_ROW_INSTDONE}
 };
 
 static void __fill_ext_reg(struct __guc_mmio_reg_descr *ext,
 			   const struct __ext_steer_reg *extlist,
 			   int slice_id, int subslice_id)
 {
-	ext->reg = extlist->reg;
+	ext->reg = _MMIO(i915_mmio_reg_offset(extlist->reg));
 	ext->flags = FIELD_PREP(GUC_REGSET_STEERING_GROUP, slice_id);
 	ext->flags |= FIELD_PREP(GUC_REGSET_STEERING_INSTANCE, subslice_id);
 	ext->regname = extlist->name;
@@ -419,6 +432,46 @@ guc_capture_get_device_reglist(struct intel_guc *guc)
 	return default_lists;
 }
 
+static const char *
+__stringify_type(u32 type)
+{
+	switch (type) {
+	case GUC_CAPTURE_LIST_TYPE_GLOBAL:
+		return "Global";
+	case GUC_CAPTURE_LIST_TYPE_ENGINE_CLASS:
+		return "Class";
+	case GUC_CAPTURE_LIST_TYPE_ENGINE_INSTANCE:
+		return "Instance";
+	default:
+		break;
+	}
+
+	return "unknown";
+}
+
+static const char *
+__stringify_engclass(u32 class)
+{
+	switch (class) {
+	case GUC_RENDER_CLASS:
+		return "Render";
+	case GUC_VIDEO_CLASS:
+		return "Video";
+	case GUC_VIDEOENHANCE_CLASS:
+		return "VideoEnhance";
+	case GUC_BLITTER_CLASS:
+		return "Blitter";
+	case GUC_COMPUTE_CLASS:
+		return "Compute";
+	case GUC_GSC_OTHER_CLASS:
+		return "GSC-Other";
+	default:
+		break;
+	}
+
+	return "unknown";
+}
+
 static int
 guc_capture_list_init(struct intel_guc *guc, u32 owner, u32 type, u32 classid,
 		      struct guc_mmio_reg *ptr, u16 num_entries)
@@ -482,32 +535,55 @@ guc_cap_list_num_regs(struct intel_guc_state_capture *gc, u32 owner, u32 type, u
 	return num_regs;
 }
 
-int
-intel_guc_capture_getlistsize(struct intel_guc *guc, u32 owner, u32 type, u32 classid,
-			      size_t *size)
+static int
+guc_capture_getlistsize(struct intel_guc *guc, u32 owner, u32 type, u32 classid,
+			size_t *size, bool is_purpose_est)
 {
 	struct intel_guc_state_capture *gc = guc->capture;
+	struct drm_i915_private *i915 = guc_to_gt(guc)->i915;
 	struct __guc_capture_ads_cache *cache = &gc->ads_cache[owner][type][classid];
 	int num_regs;
 
-	if (!gc->reglists)
+	if (!gc->reglists) {
+		drm_warn(&i915->drm, "GuC-capture: No reglist on this device\n");
 		return -ENODEV;
+	}
 
 	if (cache->is_valid) {
 		*size = cache->size;
 		return cache->status;
 	}
 
+	if (!is_purpose_est && owner == GUC_CAPTURE_LIST_INDEX_PF &&
+	    !guc_capture_get_one_list(gc->reglists, owner, type, classid)) {
+		if (type == GUC_CAPTURE_LIST_TYPE_GLOBAL)
+			drm_warn(&i915->drm, "Missing GuC-Err-Cap reglist Global!\n");
+		else
+			drm_warn(&i915->drm, "Missing GuC-Err-Cap reglist %s(%u):%s(%u)!\n",
+				 __stringify_type(type), type,
+				 __stringify_engclass(classid), classid);
+		return -ENODATA;
+	}
+
 	num_regs = guc_cap_list_num_regs(gc, owner, type, classid);
+	/* intentional empty lists can exist depending on hw config */
 	if (!num_regs)
 		return -ENODATA;
 
-	*size = PAGE_ALIGN((sizeof(struct guc_debug_capture_list)) +
-			   (num_regs * sizeof(struct guc_mmio_reg)));
+	if (size)
+		*size = PAGE_ALIGN((sizeof(struct guc_debug_capture_list)) +
+				   (num_regs * sizeof(struct guc_mmio_reg)));
 
 	return 0;
 }
 
+int
+intel_guc_capture_getlistsize(struct intel_guc *guc, u32 owner, u32 type, u32 classid,
+			      size_t *size)
+{
+	return guc_capture_getlistsize(guc, owner, type, classid, size, false);
+}
+
 static void guc_capture_create_prealloc_nodes(struct intel_guc *guc);
 
 int
@@ -606,7 +682,7 @@ guc_capture_output_min_size_est(struct intel_guc *guc)
 	struct intel_gt *gt = guc_to_gt(guc);
 	struct intel_engine_cs *engine;
 	enum intel_engine_id id;
-	int worst_min_size = 0, num_regs = 0;
+	int worst_min_size = 0;
 	size_t tmp = 0;
 
 	if (!guc->capture)
@@ -627,21 +703,19 @@ guc_capture_output_min_size_est(struct intel_guc *guc)
 		worst_min_size += sizeof(struct guc_state_capture_group_header_t) +
 					 (3 * sizeof(struct guc_state_capture_header_t));
 
-		if (!intel_guc_capture_getlistsize(guc, 0, GUC_CAPTURE_LIST_TYPE_GLOBAL, 0, &tmp))
-			num_regs += tmp;
+		if (!guc_capture_getlistsize(guc, 0, GUC_CAPTURE_LIST_TYPE_GLOBAL, 0, &tmp, true))
+			worst_min_size += tmp;
 
-		if (!intel_guc_capture_getlistsize(guc, 0, GUC_CAPTURE_LIST_TYPE_ENGINE_CLASS,
-						   engine->class, &tmp)) {
-			num_regs += tmp;
+		if (!guc_capture_getlistsize(guc, 0, GUC_CAPTURE_LIST_TYPE_ENGINE_CLASS,
+					     engine->class, &tmp, true)) {
+			worst_min_size += tmp;
 		}
-		if (!intel_guc_capture_getlistsize(guc, 0, GUC_CAPTURE_LIST_TYPE_ENGINE_INSTANCE,
-						   engine->class, &tmp)) {
-			num_regs += tmp;
+		if (!guc_capture_getlistsize(guc, 0, GUC_CAPTURE_LIST_TYPE_ENGINE_INSTANCE,
+					     engine->class, &tmp, true)) {
+			worst_min_size += tmp;
 		}
 	}
 
-	worst_min_size += (num_regs * sizeof(struct guc_mmio_reg));
-
 	return worst_min_size;
 }
 
@@ -658,15 +732,23 @@ static void check_guc_capture_size(struct intel_guc *guc)
 	int spare_size = min_size * GUC_CAPTURE_OVERBUFFER_MULTIPLIER;
 	u32 buffer_size = intel_guc_log_section_size_capture(&guc->log);
 
+	/*
+	 * NOTE: min_size is much smaller than the capture region allocation (DG2: <80K vs 1MB)
+	 * Additionally, its based on space needed to fit all engines getting reset at once
+	 * within the same G2H handler task slot. This is very unlikely. However, if GuC really
+	 * does run out of space for whatever reason, we will see an separate warning message
+	 * when processing the G2H event capture-notification, search for:
+	 * INTEL_GUC_STATE_CAPTURE_EVENT_STATUS_NOSPACE.
+	 */
 	if (min_size < 0)
 		drm_warn(&i915->drm, "Failed to calculate GuC error state capture buffer minimum size: %d!\n",
 			 min_size);
 	else if (min_size > buffer_size)
-		drm_warn(&i915->drm, "GuC error state capture buffer is too small: %d < %d\n",
+		drm_warn(&i915->drm, "GuC error state capture buffer maybe small: %d < %d\n",
 			 buffer_size, min_size);
 	else if (spare_size > buffer_size)
-		drm_notice(&i915->drm, "GuC error state capture buffer maybe too small: %d < %d (min = %d)\n",
-			   buffer_size, spare_size, min_size);
+		drm_dbg(&i915->drm, "GuC error state capture buffer lacks spare size: %d < %d (min = %d)\n",
+			buffer_size, spare_size, min_size);
 }
 
 /*