13 files changed, 152 insertions, 28 deletions

diff --git a/drivers/gpu/drm/i915/gt/uc/intel_gsc_proxy.c b/drivers/gpu/drm/i915/gt/uc/intel_gsc_proxy.c
index 5f138de3c14f..40817ebcca71 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_gsc_proxy.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_gsc_proxy.c
@@ -322,6 +322,7 @@ static int i915_gsc_proxy_component_bind(struct device *i915_kdev,
 	gsc->proxy.component = data;
 	gsc->proxy.component->mei_dev = mei_kdev;
 	mutex_unlock(&gsc->proxy.mutex);
+	gt_dbg(gt, "GSC proxy mei component bound\n");
 
 	return 0;
 }
@@ -342,6 +343,7 @@ static void i915_gsc_proxy_component_unbind(struct device *i915_kdev,
 	with_intel_runtime_pm(&i915->runtime_pm, wakeref)
 		intel_uncore_rmw(gt->uncore, HECI_H_CSR(MTL_GSC_HECI2_BASE),
 				 HECI_H_CSR_IE | HECI_H_CSR_RST, 0);
+	gt_dbg(gt, "GSC proxy mei component unbound\n");
 }
 
 static const struct component_ops i915_gsc_proxy_component_ops = {
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
index 3f3df1166b86..2b450c43bbd7 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
@@ -330,7 +330,7 @@ static u32 guc_ctl_wa_flags(struct intel_guc *guc)
 
 static u32 guc_ctl_devid(struct intel_guc *guc)
 {
-	struct drm_i915_private *i915 = guc_to_gt(guc)->i915;
+	struct drm_i915_private *i915 = guc_to_i915(guc);
 
 	return (INTEL_DEVID(i915) << 16) | INTEL_REVID(i915);
 }
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.h b/drivers/gpu/drm/i915/gt/uc/intel_guc.h
index 2b6dfe62c8f2..e22c12ce245a 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc.h
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.h
@@ -297,6 +297,10 @@ struct intel_guc {
 	 * @number_guc_id_stolen: The number of guc_ids that have been stolen
 	 */
 	int number_guc_id_stolen;
+	/**
+	 * @fast_response_selftest: Backdoor to CT handler for fast response selftest
+	 */
+	u32 fast_response_selftest;
 #endif
 };
 
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 a4da0208c883..a1cd40d80517 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c
@@ -355,7 +355,7 @@ guc_capture_alloc_steered_lists(struct intel_guc *guc,
 static const struct __guc_mmio_reg_descr_group *
 guc_capture_get_device_reglist(struct intel_guc *guc)
 {
-	struct drm_i915_private *i915 = guc_to_gt(guc)->i915;
+	struct drm_i915_private *i915 = guc_to_i915(guc);
 	const struct __guc_mmio_reg_descr_group *lists;
 
 	if (GRAPHICS_VER(i915) >= 12)
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
index 89e314b3756b..0d5197c0824a 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
@@ -265,7 +265,7 @@ int intel_guc_ct_init(struct intel_guc_ct *ct)
 	u32 *cmds;
 	int err;
 
-	err = i915_inject_probe_error(guc_to_gt(guc)->i915, -ENXIO);
+	err = i915_inject_probe_error(guc_to_i915(guc), -ENXIO);
 	if (err)
 		return err;
 
@@ -1076,6 +1076,15 @@ static int ct_handle_response(struct intel_guc_ct *ct, struct ct_incoming_msg *r
 		found = true;
 		break;
 	}
+
+#ifdef CONFIG_DRM_I915_SELFTEST
+	if (!found && ct_to_guc(ct)->fast_response_selftest) {
+		CT_DEBUG(ct, "Assuming unsolicited response due to FAST_REQUEST selftest\n");
+		ct_to_guc(ct)->fast_response_selftest++;
+		found = true;
+	}
+#endif
+
 	if (!found) {
 		CT_ERROR(ct, "Unsolicited response message: len %u, data %#x (fence %u, last %u)\n",
 			 len, hxg[0], fence, ct->requests.last_fence);
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
index 55bc8b55fbc0..bf16351c9349 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
@@ -520,7 +520,7 @@ void intel_guc_log_init_early(struct intel_guc_log *log)
 static int guc_log_relay_create(struct intel_guc_log *log)
 {
 	struct intel_guc *guc = log_to_guc(log);
-	struct drm_i915_private *i915 = guc_to_gt(guc)->i915;
+	struct drm_i915_private *i915 = guc_to_i915(guc);
 	struct rchan *guc_log_relay_chan;
 	size_t n_subbufs, subbuf_size;
 	int ret;
@@ -573,7 +573,7 @@ static void guc_log_relay_destroy(struct intel_guc_log *log)
 static void guc_log_copy_debuglogs_for_relay(struct intel_guc_log *log)
 {
 	struct intel_guc *guc = log_to_guc(log);
-	struct drm_i915_private *i915 = guc_to_gt(guc)->i915;
+	struct drm_i915_private *i915 = guc_to_i915(guc);
 	intel_wakeref_t wakeref;
 
 	_guc_log_copy_debuglogs_for_relay(log);
@@ -589,7 +589,7 @@ static void guc_log_copy_debuglogs_for_relay(struct intel_guc_log *log)
 static u32 __get_default_log_level(struct intel_guc_log *log)
 {
 	struct intel_guc *guc = log_to_guc(log);
-	struct drm_i915_private *i915 = guc_to_gt(guc)->i915;
+	struct drm_i915_private *i915 = guc_to_i915(guc);
 
 	/* A negative value means "use platform/config default" */
 	if (i915->params.guc_log_level < 0) {
@@ -664,7 +664,7 @@ void intel_guc_log_destroy(struct intel_guc_log *log)
 int intel_guc_log_set_level(struct intel_guc_log *log, u32 level)
 {
 	struct intel_guc *guc = log_to_guc(log);
-	struct drm_i915_private *i915 = guc_to_gt(guc)->i915;
+	struct drm_i915_private *i915 = guc_to_i915(guc);
 	intel_wakeref_t wakeref;
 	int ret = 0;
 
@@ -796,7 +796,7 @@ void intel_guc_log_relay_flush(struct intel_guc_log *log)
 static void guc_log_relay_stop(struct intel_guc_log *log)
 {
 	struct intel_guc *guc = log_to_guc(log);
-	struct drm_i915_private *i915 = guc_to_gt(guc)->i915;
+	struct drm_i915_private *i915 = guc_to_i915(guc);
 
 	if (!log->relay.started)
 		return;
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_rc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_rc.c
index 1adec6de223c..9df7927304ae 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_rc.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_rc.c
@@ -14,7 +14,7 @@ static bool __guc_rc_supported(struct intel_guc *guc)
 {
 	/* GuC RC is unavailable for pre-Gen12 */
 	return guc->submission_supported &&
-		GRAPHICS_VER(guc_to_gt(guc)->i915) >= 12;
+		GRAPHICS_VER(guc_to_i915(guc)) >= 12;
 }
 
 static bool __guc_rc_selected(struct intel_guc *guc)
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c
index 2dfb07cc4b33..3e681ab6fbf9 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c
@@ -34,7 +34,7 @@ static bool __detect_slpc_supported(struct intel_guc *guc)
 {
 	/* GuC SLPC is unavailable for pre-Gen12 */
 	return guc->submission_supported &&
-		GRAPHICS_VER(guc_to_gt(guc)->i915) >= 12;
+		GRAPHICS_VER(guc_to_i915(guc)) >= 12;
 }
 
 static bool __guc_slpc_selected(struct intel_guc *guc)
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
index 17df71117cc7..a259f1118c5a 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
@@ -1107,7 +1107,7 @@ static void scrub_guc_desc_for_outstanding_g2h(struct intel_guc *guc)
 			if (deregister)
 				guc_signal_context_fence(ce);
 			if (destroyed) {
-				intel_gt_pm_put_async(guc_to_gt(guc));
+				intel_gt_pm_put_async_untracked(guc_to_gt(guc));
 				release_guc_id(guc, ce);
 				__guc_context_destroy(ce);
 			}
@@ -1303,6 +1303,7 @@ static ktime_t guc_engine_busyness(struct intel_engine_cs *engine, ktime_t *now)
 	unsigned long flags;
 	u32 reset_count;
 	bool in_reset;
+	intel_wakeref_t wakeref;
 
 	spin_lock_irqsave(&guc->timestamp.lock, flags);
 
@@ -1325,7 +1326,8 @@ static ktime_t guc_engine_busyness(struct intel_engine_cs *engine, ktime_t *now)
 	 * start_gt_clk is derived from GuC state. To get a consistent
 	 * view of activity, we query the GuC state only if gt is awake.
 	 */
-	if (!in_reset && intel_gt_pm_get_if_awake(gt)) {
+	wakeref = in_reset ? 0 : intel_gt_pm_get_if_awake(gt);
+	if (wakeref) {
 		stats_saved = *stats;
 		gt_stamp_saved = guc->timestamp.gt_stamp;
 		/*
@@ -1334,7 +1336,7 @@ static ktime_t guc_engine_busyness(struct intel_engine_cs *engine, ktime_t *now)
 		 */
 		guc_update_engine_gt_clks(engine);
 		guc_update_pm_timestamp(guc, now);
-		intel_gt_pm_put_async(gt);
+		intel_gt_pm_put_async(gt, wakeref);
 		if (i915_reset_count(gpu_error) != reset_count) {
 			*stats = stats_saved;
 			guc->timestamp.gt_stamp = gt_stamp_saved;
@@ -3385,9 +3387,9 @@ static void destroyed_worker_func(struct work_struct *w)
 	struct intel_guc *guc = container_of(w, struct intel_guc,
 					     submission_state.destroyed_worker);
 	struct intel_gt *gt = guc_to_gt(guc);
-	int tmp;
+	intel_wakeref_t wakeref;
 
-	with_intel_gt_pm(gt, tmp)
+	with_intel_gt_pm(gt, wakeref)
 		deregister_destroyed_contexts(guc);
 }
 
@@ -4624,12 +4626,12 @@ static bool __guc_submission_supported(struct intel_guc *guc)
 {
 	/* GuC submission is unavailable for pre-Gen11 */
 	return intel_guc_is_supported(guc) &&
-	       GRAPHICS_VER(guc_to_gt(guc)->i915) >= 11;
+	       GRAPHICS_VER(guc_to_i915(guc)) >= 11;
 }
 
 static bool __guc_submission_selected(struct intel_guc *guc)
 {
-	struct drm_i915_private *i915 = guc_to_gt(guc)->i915;
+	struct drm_i915_private *i915 = guc_to_i915(guc);
 
 	if (!intel_guc_submission_is_supported(guc))
 		return false;
@@ -4894,7 +4896,7 @@ int intel_guc_deregister_done_process_msg(struct intel_guc *guc,
 		intel_context_put(ce);
 	} else if (context_destroyed(ce)) {
 		/* Context has been destroyed */
-		intel_gt_pm_put_async(guc_to_gt(guc));
+		intel_gt_pm_put_async_untracked(guc_to_gt(guc));
 		release_guc_id(guc, ce);
 		__guc_context_destroy(ce);
 	}
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc.c b/drivers/gpu/drm/i915/gt/uc/intel_uc.c
index 27f6561dd731..3872d309ed31 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_uc.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_uc.c
@@ -106,11 +106,6 @@ static void __confirm_options(struct intel_uc *uc)
 		gt_info(gt,  "Incompatible option enable_guc=%d - %s\n",
 			i915->params.enable_guc, "GuC is not supported!");
 
-	if (i915->params.enable_guc & ENABLE_GUC_LOAD_HUC &&
-	    !intel_uc_supports_huc(uc))
-		gt_info(gt, "Incompatible option enable_guc=%d - %s\n",
-			i915->params.enable_guc, "HuC is not supported!");
-
 	if (i915->params.enable_guc & ENABLE_GUC_SUBMISSION &&
 	    !intel_uc_supports_guc_submission(uc))
 		gt_info(gt, "Incompatible option enable_guc=%d - %s\n",
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
index 362639162ed6..756093eaf2ad 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
@@ -1343,16 +1343,13 @@ size_t intel_uc_fw_copy_rsa(struct intel_uc_fw *uc_fw, void *dst, u32 max_len)
 
 		for_each_sgt_page(page, iter, uc_fw->obj->mm.pages) {
 			u32 len = min_t(u32, size, PAGE_SIZE - offset);
-			void *vaddr;
 
 			if (idx > 0) {
 				idx--;
 				continue;
 			}
 
-			vaddr = kmap_atomic(page);
-			memcpy(dst, vaddr + offset, len);
-			kunmap_atomic(vaddr);
+			memcpy_from_page(dst, page, offset, len);
 
 			offset = 0;
 			dst += len;
diff --git a/drivers/gpu/drm/i915/gt/uc/selftest_guc.c b/drivers/gpu/drm/i915/gt/uc/selftest_guc.c
index bfb72143566f..c900aac85adb 100644
--- a/drivers/gpu/drm/i915/gt/uc/selftest_guc.c
+++ b/drivers/gpu/drm/i915/gt/uc/selftest_guc.c
@@ -286,11 +286,126 @@ err_wakeref:
 	return ret;
 }
 
+/*
+ * Send a context schedule H2G message with an invalid context id.
+ * This should generate a GUC_RESULT_INVALID_CONTEXT response.
+ */
+static int bad_h2g(struct intel_guc *guc)
+{
+	u32 action[] = {
+	   INTEL_GUC_ACTION_SCHED_CONTEXT,
+	   0x12345678,
+	};
+
+	return intel_guc_send_nb(guc, action, ARRAY_SIZE(action), 0);
+}
+
+/*
+ * Set a spinner running to make sure the system is alive and active,
+ * then send a bad but asynchronous H2G command and wait to see if an
+ * error response is returned. If no response is received or if the
+ * spinner dies then the test will fail.
+ */
+#define FAST_RESPONSE_TIMEOUT_MS	1000
+static int intel_guc_fast_request(void *arg)
+{
+	struct intel_gt *gt = arg;
+	struct intel_context *ce;
+	struct igt_spinner spin;
+	struct i915_request *rq;
+	intel_wakeref_t wakeref;
+	struct intel_engine_cs *engine = intel_selftest_find_any_engine(gt);
+	bool spinning = false;
+	int ret = 0;
+
+	if (!engine)
+		return 0;
+
+	wakeref = intel_runtime_pm_get(gt->uncore->rpm);
+
+	ce = intel_context_create(engine);
+	if (IS_ERR(ce)) {
+		ret = PTR_ERR(ce);
+		gt_err(gt, "Failed to create spinner request: %pe\n", ce);
+		goto err_pm;
+	}
+
+	ret = igt_spinner_init(&spin, engine->gt);
+	if (ret) {
+		gt_err(gt, "Failed to create spinner: %pe\n", ERR_PTR(ret));
+		goto err_pm;
+	}
+	spinning = true;
+
+	rq = igt_spinner_create_request(&spin, ce, MI_ARB_CHECK);
+	intel_context_put(ce);
+	if (IS_ERR(rq)) {
+		ret = PTR_ERR(rq);
+		gt_err(gt, "Failed to create spinner request: %pe\n", rq);
+		goto err_spin;
+	}
+
+	ret = request_add_spin(rq, &spin);
+	if (ret) {
+		gt_err(gt, "Failed to add Spinner request: %pe\n", ERR_PTR(ret));
+		goto err_rq;
+	}
+
+	gt->uc.guc.fast_response_selftest = 1;
+
+	ret = bad_h2g(&gt->uc.guc);
+	if (ret) {
+		gt_err(gt, "Failed to send H2G: %pe\n", ERR_PTR(ret));
+		goto err_rq;
+	}
+
+	ret = wait_for(gt->uc.guc.fast_response_selftest != 1 || i915_request_completed(rq),
+		       FAST_RESPONSE_TIMEOUT_MS);
+	if (ret) {
+		gt_err(gt, "Request wait failed: %pe\n", ERR_PTR(ret));
+		goto err_rq;
+	}
+
+	if (i915_request_completed(rq)) {
+		gt_err(gt, "Spinner died waiting for fast request error!\n");
+		ret = -EIO;
+		goto err_rq;
+	}
+
+	if (gt->uc.guc.fast_response_selftest != 2) {
+		gt_err(gt, "Unexpected fast response count: %d\n",
+		       gt->uc.guc.fast_response_selftest);
+		goto err_rq;
+	}
+
+	igt_spinner_end(&spin);
+	spinning = false;
+
+	ret = intel_selftest_wait_for_rq(rq);
+	if (ret) {
+		gt_err(gt, "Request failed to complete: %pe\n", ERR_PTR(ret));
+		goto err_rq;
+	}
+
+err_rq:
+	i915_request_put(rq);
+
+err_spin:
+	if (spinning)
+		igt_spinner_end(&spin);
+	igt_spinner_fini(&spin);
+
+err_pm:
+	intel_runtime_pm_put(gt->uncore->rpm, wakeref);
+	return ret;
+}
+
 int intel_guc_live_selftests(struct drm_i915_private *i915)
 {
 	static const struct i915_subtest tests[] = {
 		SUBTEST(intel_guc_scrub_ctbs),
 		SUBTEST(intel_guc_steal_guc_ids),
+		SUBTEST(intel_guc_fast_request),
 	};
 	struct intel_gt *gt = to_gt(i915);
 
diff --git a/drivers/gpu/drm/i915/gt/uc/selftest_guc_hangcheck.c b/drivers/gpu/drm/i915/gt/uc/selftest_guc_hangcheck.c
index 34b5d952e2bc..26fdc392fce6 100644
--- a/drivers/gpu/drm/i915/gt/uc/selftest_guc_hangcheck.c
+++ b/drivers/gpu/drm/i915/gt/uc/selftest_guc_hangcheck.c
@@ -74,7 +74,7 @@ static int intel_hang_guc(void *arg)
 		goto err;
 	}
 
-	rq = igt_spinner_create_request(&spin, ce, MI_NOOP);
+	rq = igt_spinner_create_request(&spin, ce, MI_ARB_CHECK);
 	intel_context_put(ce);
 	if (IS_ERR(rq)) {
 		ret = PTR_ERR(rq);