drm/i915/guc: Introduce USES_GUC_xxx helper macros

In the upcoming patch we will change the way how to recognize
when GuC is in use. Using helper macros will minimize scope
of that changes. While here, update dev_info message.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20171206135316.32556-3-michal.wajdeczko@intel.com

drivers/gpu/drm/i915/i915_drv.h

@@ -3239,6 +3239,10 @@ intel_info(const struct drm_i915_private *dev_priv)
 #define HAS_HUC(dev_priv)	(HAS_GUC(dev_priv))
 #define HAS_HUC_UCODE(dev_priv)	(HAS_GUC(dev_priv))
 
+/* Having a GuC is not the same as using a GuC */
+#define USES_GUC(dev_priv)		(i915_modparams.enable_guc_loading)
+#define USES_GUC_SUBMISSION(dev_priv)	(i915_modparams.enable_guc_submission)
+
 #define HAS_RESOURCE_STREAMER(dev_priv) ((dev_priv)->info.has_resource_streamer)
 
 #define HAS_POOLED_EU(dev_priv)	((dev_priv)->info.has_pooled_eu)

drivers/gpu/drm/i915/i915_gem_context.c

@@ -316,7 +316,7 @@ __create_hw_context(struct drm_i915_private *dev_priv,
 	 * present or not in use we still need a small bias as ring wraparound
 	 * at offset 0 sometimes hangs. No idea why.
 	 */
-	if (HAS_GUC(dev_priv) && i915_modparams.enable_guc_loading)
+	if (USES_GUC(dev_priv))
 		ctx->ggtt_offset_bias = GUC_WOPCM_TOP;
 	else
 		ctx->ggtt_offset_bias = I915_GTT_PAGE_SIZE;
@@ -409,7 +409,7 @@ i915_gem_context_create_gvt(struct drm_device *dev)
 	i915_gem_context_set_closed(ctx); /* not user accessible */
 	i915_gem_context_clear_bannable(ctx);
 	i915_gem_context_set_force_single_submission(ctx);
-	if (!i915_modparams.enable_guc_submission)
+	if (!USES_GUC_SUBMISSION(to_i915(dev)))
 		ctx->ring_size = 512 * PAGE_SIZE; /* Max ring buffer size */
 
 	GEM_BUG_ON(i915_gem_context_is_kernel(ctx));

drivers/gpu/drm/i915/i915_gem_gtt.c

@@ -3503,7 +3503,7 @@ int i915_ggtt_probe_hw(struct drm_i915_private *dev_priv)
 	 * currently don't have any bits spare to pass in this upper
 	 * restriction!
 	 */
-	if (HAS_GUC(dev_priv) && i915_modparams.enable_guc_loading) {
+	if (USES_GUC(dev_priv)) {
 		ggtt->base.total = min_t(u64, ggtt->base.total, GUC_GGTT_TOP);
 		ggtt->mappable_end = min(ggtt->mappable_end, ggtt->base.total);
 	}

drivers/gpu/drm/i915/i915_irq.c

@@ -1400,7 +1400,7 @@ gen8_cs_irq_handler(struct intel_engine_cs *engine, u32 iir, int test_shift)
 
 	if (iir & (GT_RENDER_USER_INTERRUPT << test_shift)) {
 		notify_ring(engine);
-		tasklet |= i915_modparams.enable_guc_submission;
+		tasklet |= USES_GUC_SUBMISSION(engine->i915);
 	}
 
 	if (tasklet)

drivers/gpu/drm/i915/intel_guc.c

@@ -129,7 +129,7 @@ void intel_guc_init_params(struct intel_guc *guc)
 	}
 
 	/* If GuC submission is enabled, set up additional parameters here */
-	if (i915_modparams.enable_guc_submission) {
+	if (USES_GUC_SUBMISSION(dev_priv)) {
 		u32 ads = guc_ggtt_offset(guc->ads_vma) >> PAGE_SHIFT;
 		u32 pgs = guc_ggtt_offset(dev_priv->guc.stage_desc_pool);
 		u32 ctx_in_16 = GUC_MAX_STAGE_DESCRIPTORS / 16;

drivers/gpu/drm/i915/intel_guc_log.c

@@ -505,7 +505,7 @@ static void guc_flush_logs(struct intel_guc *guc)
 {
 	struct drm_i915_private *dev_priv = guc_to_i915(guc);
 
-	if (!i915_modparams.enable_guc_submission ||
+	if (!USES_GUC_SUBMISSION(dev_priv) ||
 	    (i915_modparams.guc_log_level < 0))
 		return;
 
@@ -646,7 +646,7 @@ int i915_guc_log_control(struct drm_i915_private *dev_priv, u64 control_val)
 
 void i915_guc_log_register(struct drm_i915_private *dev_priv)
 {
-	if (!i915_modparams.enable_guc_submission ||
+	if (!USES_GUC_SUBMISSION(dev_priv) ||
 	    (i915_modparams.guc_log_level < 0))
 		return;
 
@@ -657,7 +657,7 @@ void i915_guc_log_register(struct drm_i915_private *dev_priv)
 
 void i915_guc_log_unregister(struct drm_i915_private *dev_priv)
 {
-	if (!i915_modparams.enable_guc_submission)
+	if (!USES_GUC_SUBMISSION(dev_priv))
 		return;
 
 	mutex_lock(&dev_priv->drm.struct_mutex);

drivers/gpu/drm/i915/intel_gvt.c

@@ -95,7 +95,7 @@ int intel_gvt_init(struct drm_i915_private *dev_priv)
 		return 0;
 	}
 
-	if (i915_modparams.enable_guc_submission) {
+	if (USES_GUC_SUBMISSION(dev_priv)) {
 		DRM_ERROR("i915 GVT-g loading failed due to Graphics virtualization is not yet supported with GuC submission\n");
 		return -EIO;
 	}

drivers/gpu/drm/i915/intel_uc.c

@@ -152,7 +152,7 @@ int intel_uc_init_hw(struct drm_i915_private *dev_priv)
 	struct intel_guc *guc = &dev_priv->guc;
 	int ret, attempts;
 
-	if (!i915_modparams.enable_guc_loading)
+	if (!USES_GUC(dev_priv))
 		return 0;
 
 	guc_disable_communication(guc);
@@ -161,7 +161,7 @@ int intel_uc_init_hw(struct drm_i915_private *dev_priv)
 	/* We need to notify the guc whenever we change the GGTT */
 	i915_ggtt_enable_guc(dev_priv);
 
-	if (i915_modparams.enable_guc_submission) {
+	if (USES_GUC_SUBMISSION(dev_priv)) {
 		/*
 		 * This is stuff we need to have available at fw load time
 		 * if we are planning to enable submission later
@@ -211,7 +211,7 @@ int intel_uc_init_hw(struct drm_i915_private *dev_priv)
 		goto err_log_capture;
 
 	intel_huc_auth(&dev_priv->huc);
-	if (i915_modparams.enable_guc_submission) {
+	if (USES_GUC_SUBMISSION(dev_priv)) {
 		if (i915_modparams.guc_log_level >= 0)
 			gen9_enable_guc_interrupts(dev_priv);
 
@@ -220,11 +220,10 @@ int intel_uc_init_hw(struct drm_i915_private *dev_priv)
 			goto err_interrupts;
 	}
 
-	dev_info(dev_priv->drm.dev, "GuC %s (firmware %s [version %u.%u])\n",
-		 i915_modparams.enable_guc_submission ? "submission enabled" :
-							"loaded",
-		 guc->fw.path,
+	dev_info(dev_priv->drm.dev, "GuC firmware version %u.%u\n",
 		 guc->fw.major_ver_found, guc->fw.minor_ver_found);
+	dev_info(dev_priv->drm.dev, "GuC submission %s\n",
+		 enableddisabled(USES_GUC_SUBMISSION(dev_priv)));
 
 	return 0;
 
@@ -243,7 +242,7 @@ err_interrupts:
 err_log_capture:
 	guc_capture_load_err_log(guc);
 err_submission:
-	if (i915_modparams.enable_guc_submission)
+	if (USES_GUC_SUBMISSION(dev_priv))
 		intel_guc_submission_fini(guc);
 err_guc:
 	i915_ggtt_disable_guc(dev_priv);
@@ -257,7 +256,7 @@ err_guc:
 		ret = 0;
 	}
 
-	if (i915_modparams.enable_guc_submission) {
+	if (USES_GUC_SUBMISSION(dev_priv)) {
 		i915_modparams.enable_guc_submission = 0;
 		DRM_NOTE("Falling back from GuC submission to execlist mode\n");
 	}
@@ -273,15 +272,15 @@ void intel_uc_fini_hw(struct drm_i915_private *dev_priv)
 
 	guc_free_load_err_log(guc);
 
-	if (!i915_modparams.enable_guc_loading)
+	if (!USES_GUC(dev_priv))
 		return;
 
-	if (i915_modparams.enable_guc_submission)
+	if (USES_GUC_SUBMISSION(dev_priv))
 		intel_guc_submission_disable(guc);
 
 	guc_disable_communication(guc);
 
-	if (i915_modparams.enable_guc_submission) {
+	if (USES_GUC_SUBMISSION(dev_priv)) {
 		gen9_disable_guc_interrupts(dev_priv);
 		intel_guc_submission_fini(guc);
 	}

drivers/gpu/drm/i915/selftests/intel_guc.c

@@ -362,7 +362,7 @@ int intel_guc_live_selftest(struct drm_i915_private *dev_priv)
 		SUBTEST(igt_guc_doorbells),
 	};
 
-	if (!i915_modparams.enable_guc_submission)
+	if (!USES_GUC_SUBMISSION(dev_priv))
 		return 0;
 
 	return i915_subtests(tests, dev_priv);