1 files changed, 66 insertions, 61 deletions

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 1632f18e6a64..43afa1c1b14f 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -240,8 +240,8 @@ err_phys:
 
 static void __start_cpu_write(struct drm_i915_gem_object *obj)
 {
-	obj->base.read_domains = I915_GEM_DOMAIN_CPU;
-	obj->base.write_domain = I915_GEM_DOMAIN_CPU;
+	obj->read_domains = I915_GEM_DOMAIN_CPU;
+	obj->write_domain = I915_GEM_DOMAIN_CPU;
 	if (cpu_write_needs_clflush(obj))
 		obj->cache_dirty = true;
 }
@@ -257,7 +257,7 @@ __i915_gem_object_release_shmem(struct drm_i915_gem_object *obj,
 		obj->mm.dirty = false;
 
 	if (needs_clflush &&
-	    (obj->base.read_domains & I915_GEM_DOMAIN_CPU) == 0 &&
+	    (obj->read_domains & I915_GEM_DOMAIN_CPU) == 0 &&
 	    !(obj->cache_coherent & I915_BO_CACHE_COHERENT_FOR_READ))
 		drm_clflush_sg(pages);
 
@@ -703,10 +703,10 @@ flush_write_domain(struct drm_i915_gem_object *obj, unsigned int flush_domains)
 	struct drm_i915_private *dev_priv = to_i915(obj->base.dev);
 	struct i915_vma *vma;
 
-	if (!(obj->base.write_domain & flush_domains))
+	if (!(obj->write_domain & flush_domains))
 		return;
 
-	switch (obj->base.write_domain) {
+	switch (obj->write_domain) {
 	case I915_GEM_DOMAIN_GTT:
 		i915_gem_flush_ggtt_writes(dev_priv);
 
@@ -731,7 +731,7 @@ flush_write_domain(struct drm_i915_gem_object *obj, unsigned int flush_domains)
 		break;
 	}
 
-	obj->base.write_domain = 0;
+	obj->write_domain = 0;
 }
 
 static inline int
@@ -831,7 +831,7 @@ int i915_gem_obj_prepare_shmem_read(struct drm_i915_gem_object *obj,
 	 * anyway again before the next pread happens.
 	 */
 	if (!obj->cache_dirty &&
-	    !(obj->base.read_domains & I915_GEM_DOMAIN_CPU))
+	    !(obj->read_domains & I915_GEM_DOMAIN_CPU))
 		*needs_clflush = CLFLUSH_BEFORE;
 
 out:
@@ -890,7 +890,7 @@ int i915_gem_obj_prepare_shmem_write(struct drm_i915_gem_object *obj,
 		 * Same trick applies to invalidate partially written
 		 * cachelines read before writing.
 		 */
-		if (!(obj->base.read_domains & I915_GEM_DOMAIN_CPU))
+		if (!(obj->read_domains & I915_GEM_DOMAIN_CPU))
 			*needs_clflush |= CLFLUSH_BEFORE;
 	}
 
@@ -2391,8 +2391,8 @@ static int i915_gem_object_get_pages_gtt(struct drm_i915_gem_object *obj)
 	 * wasn't in the GTT, there shouldn't be any way it could have been in
 	 * a GPU cache
 	 */
-	GEM_BUG_ON(obj->base.read_domains & I915_GEM_GPU_DOMAINS);
-	GEM_BUG_ON(obj->base.write_domain & I915_GEM_GPU_DOMAINS);
+	GEM_BUG_ON(obj->read_domains & I915_GEM_GPU_DOMAINS);
+	GEM_BUG_ON(obj->write_domain & I915_GEM_GPU_DOMAINS);
 
 	st = kmalloc(sizeof(*st), GFP_KERNEL);
 	if (st == NULL)
@@ -3205,6 +3205,9 @@ void i915_gem_set_wedged(struct drm_i915_private *i915)
 			intel_engine_dump(engine, &p, "%s\n", engine->name);
 	}
 
+	set_bit(I915_WEDGED, &i915->gpu_error.flags);
+	smp_mb__after_atomic();
+
 	/*
 	 * First, stop submission to hw, but do not yet complete requests by
 	 * rolling the global seqno forward (since this would complete requests
@@ -3229,8 +3232,11 @@ void i915_gem_set_wedged(struct drm_i915_private *i915)
 		 * start to complete all requests.
 		 */
 		engine->submit_request = nop_complete_submit_request;
+		engine->schedule = NULL;
 	}
 
+	i915->caps.scheduler = 0;
+
 	/*
 	 * Make sure no request can slip through without getting completed by
 	 * either this call here to intel_engine_init_global_seqno, or the one
@@ -3241,7 +3247,8 @@ void i915_gem_set_wedged(struct drm_i915_private *i915)
 	for_each_engine(engine, i915, id) {
 		unsigned long flags;
 
-		/* Mark all pending requests as complete so that any concurrent
+		/*
+		 * Mark all pending requests as complete so that any concurrent
 		 * (lockless) lookup doesn't try and wait upon the request as we
 		 * reset it.
 		 */
@@ -3251,7 +3258,6 @@ void i915_gem_set_wedged(struct drm_i915_private *i915)
 		spin_unlock_irqrestore(&engine->timeline->lock, flags);
 	}
 
-	set_bit(I915_WEDGED, &i915->gpu_error.flags);
 	wake_up_all(&i915->gpu_error.reset_queue);
 }
 
@@ -3697,7 +3703,7 @@ static void __i915_gem_object_flush_for_display(struct drm_i915_gem_object *obj)
 	flush_write_domain(obj, ~I915_GEM_DOMAIN_CPU);
 	if (obj->cache_dirty)
 		i915_gem_clflush_object(obj, I915_CLFLUSH_FORCE);
-	obj->base.write_domain = 0;
+	obj->write_domain = 0;
 }
 
 void i915_gem_object_flush_if_display(struct drm_i915_gem_object *obj)
@@ -3734,7 +3740,7 @@ i915_gem_object_set_to_wc_domain(struct drm_i915_gem_object *obj, bool write)
 	if (ret)
 		return ret;
 
-	if (obj->base.write_domain == I915_GEM_DOMAIN_WC)
+	if (obj->write_domain == I915_GEM_DOMAIN_WC)
 		return 0;
 
 	/* Flush and acquire obj->pages so that we are coherent through
@@ -3755,17 +3761,17 @@ i915_gem_object_set_to_wc_domain(struct drm_i915_gem_object *obj, bool write)
 	 * coherent writes from the GPU, by effectively invalidating the
 	 * WC domain upon first access.
 	 */
-	if ((obj->base.read_domains & I915_GEM_DOMAIN_WC) == 0)
+	if ((obj->read_domains & I915_GEM_DOMAIN_WC) == 0)
 		mb();
 
 	/* It should now be out of any other write domains, and we can update
 	 * the domain values for our changes.
 	 */
-	GEM_BUG_ON((obj->base.write_domain & ~I915_GEM_DOMAIN_WC) != 0);
-	obj->base.read_domains |= I915_GEM_DOMAIN_WC;
+	GEM_BUG_ON((obj->write_domain & ~I915_GEM_DOMAIN_WC) != 0);
+	obj->read_domains |= I915_GEM_DOMAIN_WC;
 	if (write) {
-		obj->base.read_domains = I915_GEM_DOMAIN_WC;
-		obj->base.write_domain = I915_GEM_DOMAIN_WC;
+		obj->read_domains = I915_GEM_DOMAIN_WC;
+		obj->write_domain = I915_GEM_DOMAIN_WC;
 		obj->mm.dirty = true;
 	}
 
@@ -3797,7 +3803,7 @@ i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj, bool write)
 	if (ret)
 		return ret;
 
-	if (obj->base.write_domain == I915_GEM_DOMAIN_GTT)
+	if (obj->write_domain == I915_GEM_DOMAIN_GTT)
 		return 0;
 
 	/* Flush and acquire obj->pages so that we are coherent through
@@ -3818,17 +3824,17 @@ i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj, bool write)
 	 * coherent writes from the GPU, by effectively invalidating the
 	 * GTT domain upon first access.
 	 */
-	if ((obj->base.read_domains & I915_GEM_DOMAIN_GTT) == 0)
+	if ((obj->read_domains & I915_GEM_DOMAIN_GTT) == 0)
 		mb();
 
 	/* It should now be out of any other write domains, and we can update
 	 * the domain values for our changes.
 	 */
-	GEM_BUG_ON((obj->base.write_domain & ~I915_GEM_DOMAIN_GTT) != 0);
-	obj->base.read_domains |= I915_GEM_DOMAIN_GTT;
+	GEM_BUG_ON((obj->write_domain & ~I915_GEM_DOMAIN_GTT) != 0);
+	obj->read_domains |= I915_GEM_DOMAIN_GTT;
 	if (write) {
-		obj->base.read_domains = I915_GEM_DOMAIN_GTT;
-		obj->base.write_domain = I915_GEM_DOMAIN_GTT;
+		obj->read_domains = I915_GEM_DOMAIN_GTT;
+		obj->write_domain = I915_GEM_DOMAIN_GTT;
 		obj->mm.dirty = true;
 	}
 
@@ -4072,7 +4078,8 @@ out:
 struct i915_vma *
 i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj,
 				     u32 alignment,
-				     const struct i915_ggtt_view *view)
+				     const struct i915_ggtt_view *view,
+				     unsigned int flags)
 {
 	struct i915_vma *vma;
 	int ret;
@@ -4109,25 +4116,14 @@ i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj,
 	 * try to preserve the existing ABI).
 	 */
 	vma = ERR_PTR(-ENOSPC);
-	if (!view || view->type == I915_GGTT_VIEW_NORMAL)
+	if ((flags & PIN_MAPPABLE) == 0 &&
+	    (!view || view->type == I915_GGTT_VIEW_NORMAL))
 		vma = i915_gem_object_ggtt_pin(obj, view, 0, alignment,
-					       PIN_MAPPABLE | PIN_NONBLOCK);
-	if (IS_ERR(vma)) {
-		struct drm_i915_private *i915 = to_i915(obj->base.dev);
-		unsigned int flags;
-
-		/* Valleyview is definitely limited to scanning out the first
-		 * 512MiB. Lets presume this behaviour was inherited from the
-		 * g4x display engine and that all earlier gen are similarly
-		 * limited. Testing suggests that it is a little more
-		 * complicated than this. For example, Cherryview appears quite
-		 * happy to scanout from anywhere within its global aperture.
-		 */
-		flags = 0;
-		if (HAS_GMCH_DISPLAY(i915))
-			flags = PIN_MAPPABLE;
+					       flags |
+					       PIN_MAPPABLE |
+					       PIN_NONBLOCK);
+	if (IS_ERR(vma))
 		vma = i915_gem_object_ggtt_pin(obj, view, 0, alignment, flags);
-	}
 	if (IS_ERR(vma))
 		goto err_unpin_global;
 
@@ -4140,7 +4136,7 @@ i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj,
 	/* It should now be out of any other write domains, and we can update
 	 * the domain values for our changes.
 	 */
-	obj->base.read_domains |= I915_GEM_DOMAIN_GTT;
+	obj->read_domains |= I915_GEM_DOMAIN_GTT;
 
 	return vma;
 
@@ -4193,15 +4189,15 @@ i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object *obj, bool write)
 	flush_write_domain(obj, ~I915_GEM_DOMAIN_CPU);
 
 	/* Flush the CPU cache if it's still invalid. */
-	if ((obj->base.read_domains & I915_GEM_DOMAIN_CPU) == 0) {
+	if ((obj->read_domains & I915_GEM_DOMAIN_CPU) == 0) {
 		i915_gem_clflush_object(obj, I915_CLFLUSH_SYNC);
-		obj->base.read_domains |= I915_GEM_DOMAIN_CPU;
+		obj->read_domains |= I915_GEM_DOMAIN_CPU;
 	}
 
 	/* It should now be out of any other write domains, and we can update
 	 * the domain values for our changes.
 	 */
-	GEM_BUG_ON(obj->base.write_domain & ~I915_GEM_DOMAIN_CPU);
+	GEM_BUG_ON(obj->write_domain & ~I915_GEM_DOMAIN_CPU);
 
 	/* If we're writing through the CPU, then the GPU read domains will
 	 * need to be invalidated at next use.
@@ -4276,7 +4272,8 @@ i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
 
 	lockdep_assert_held(&obj->base.dev->struct_mutex);
 
-	if (!view && flags & PIN_MAPPABLE) {
+	if (flags & PIN_MAPPABLE &&
+	    (!view || view->type == I915_GGTT_VIEW_NORMAL)) {
 		/* If the required space is larger than the available
 		 * aperture, we will not able to find a slot for the
 		 * object and unbinding the object now will be in
@@ -4637,8 +4634,8 @@ i915_gem_object_create(struct drm_i915_private *dev_priv, u64 size)
 
 	i915_gem_object_init(obj, &i915_gem_object_ops);
 
-	obj->base.write_domain = I915_GEM_DOMAIN_CPU;
-	obj->base.read_domains = I915_GEM_DOMAIN_CPU;
+	obj->write_domain = I915_GEM_DOMAIN_CPU;
+	obj->read_domains = I915_GEM_DOMAIN_CPU;
 
 	if (HAS_LLC(dev_priv))
 		/* On some devices, we can have the GPU use the LLC (the CPU
@@ -4752,6 +4749,9 @@ static void __i915_gem_free_objects(struct drm_i915_private *i915,
 		kfree(obj->bit_17);
 		i915_gem_object_free(obj);
 
+		GEM_BUG_ON(!atomic_read(&i915->mm.free_count));
+		atomic_dec(&i915->mm.free_count);
+
 		if (on)
 			cond_resched();
 	}
@@ -4840,6 +4840,7 @@ void i915_gem_free_object(struct drm_gem_object *gem_obj)
 	 * i915_gem_busy_ioctl(). For the corresponding synchronized
 	 * lookup see i915_gem_object_lookup_rcu().
 	 */
+	atomic_inc(&to_i915(obj->base.dev)->mm.free_count);
 	call_rcu(&obj->rcu, __i915_gem_free_object_rcu);
 }
 
@@ -4882,10 +4883,8 @@ void i915_gem_sanitize(struct drm_i915_private *i915)
 	 * it may impact the display and we are uncertain about the stability
 	 * of the reset, so this could be applied to even earlier gen.
 	 */
-	if (INTEL_GEN(i915) >= 5) {
-		int reset = intel_gpu_reset(i915, ALL_ENGINES);
-		WARN_ON(reset && reset != -ENODEV);
-	}
+	if (INTEL_GEN(i915) >= 5 && intel_has_gpu_reset(i915))
+		WARN_ON(intel_gpu_reset(i915, ALL_ENGINES));
 }
 
 int i915_gem_suspend(struct drm_i915_private *dev_priv)
@@ -5065,8 +5064,11 @@ static int __i915_gem_restart_engines(void *data)
 
 	for_each_engine(engine, i915, id) {
 		err = engine->init_hw(engine);
-		if (err)
+		if (err) {
+			DRM_ERROR("Failed to restart %s (%d)\n",
+				  engine->name, err);
 			return err;
+		}
 	}
 
 	return 0;
@@ -5118,14 +5120,16 @@ int i915_gem_init_hw(struct drm_i915_private *dev_priv)
 
 	ret = i915_ppgtt_init_hw(dev_priv);
 	if (ret) {
-		DRM_ERROR("PPGTT enable HW failed %d\n", ret);
+		DRM_ERROR("Enabling PPGTT failed (%d)\n", ret);
 		goto out;
 	}
 
 	/* We can't enable contexts until all firmware is loaded */
 	ret = intel_uc_init_hw(dev_priv);
-	if (ret)
+	if (ret) {
+		DRM_ERROR("Enabling uc failed (%d)\n", ret);
 		goto out;
+	}
 
 	intel_mocs_init_l3cc_table(dev_priv);
 
@@ -5415,10 +5419,10 @@ i915_gem_load_init_fences(struct drm_i915_private *dev_priv)
 {
 	int i;
 
-	if (INTEL_INFO(dev_priv)->gen >= 7 && !IS_VALLEYVIEW(dev_priv) &&
+	if (INTEL_GEN(dev_priv) >= 7 && !IS_VALLEYVIEW(dev_priv) &&
 	    !IS_CHERRYVIEW(dev_priv))
 		dev_priv->num_fence_regs = 32;
-	else if (INTEL_INFO(dev_priv)->gen >= 4 ||
+	else if (INTEL_GEN(dev_priv) >= 4 ||
 		 IS_I945G(dev_priv) || IS_I945GM(dev_priv) ||
 		 IS_G33(dev_priv) || IS_PINEVIEW(dev_priv))
 		dev_priv->num_fence_regs = 16;
@@ -5537,7 +5541,8 @@ err_out:
 void i915_gem_load_cleanup(struct drm_i915_private *dev_priv)
 {
 	i915_gem_drain_freed_objects(dev_priv);
-	WARN_ON(!llist_empty(&dev_priv->mm.free_list));
+	GEM_BUG_ON(!llist_empty(&dev_priv->mm.free_list));
+	GEM_BUG_ON(atomic_read(&dev_priv->mm.free_count));
 	WARN_ON(dev_priv->mm.object_count);
 
 	mutex_lock(&dev_priv->drm.struct_mutex);
@@ -5693,7 +5698,7 @@ i915_gem_object_create_from_data(struct drm_i915_private *dev_priv,
 	if (IS_ERR(obj))
 		return obj;
 
-	GEM_BUG_ON(obj->base.write_domain != I915_GEM_DOMAIN_CPU);
+	GEM_BUG_ON(obj->write_domain != I915_GEM_DOMAIN_CPU);
 
 	file = obj->base.filp;
 	offset = 0;