Merge patches merged by Jani while I was on vacation.

Jani apparently didn't rebase onto latest drm-intel-next so a merge is
in order.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

7 files changed, 116 insertions, 46 deletions

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 6b7b32baefb1..e41586633d4e 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -2356,17 +2356,17 @@ static int i915_display_info(struct seq_file *m, void *unused)
 		bool active;
 		int x, y;
 
-		seq_printf(m, "CRTC %d: pipe: %c, active: %s\n",
+		seq_printf(m, "CRTC %d: pipe: %c, active=%s (size=%dx%d)\n",
 			   crtc->base.base.id, pipe_name(crtc->pipe),
-			   yesno(crtc->active));
+			   yesno(crtc->active), crtc->config.pipe_src_w, crtc->config.pipe_src_h);
 		if (crtc->active) {
 			intel_crtc_info(m, crtc);
 
 			active = cursor_position(dev, crtc->pipe, &x, &y);
-			seq_printf(m, "\tcursor visible? %s, position (%d, %d), addr 0x%08x, active? %s\n",
+			seq_printf(m, "\tcursor visible? %s, position (%d, %d), size %dx%d, addr 0x%08x, active? %s\n",
 				   yesno(crtc->cursor_base),
-				   x, y, crtc->cursor_addr,
-				   yesno(active));
+				   x, y, crtc->cursor_width, crtc->cursor_height,
+				   crtc->cursor_addr, yesno(active));
 		}
 
 		seq_printf(m, "\tunderrun reporting: cpu=%s pch=%s \n",
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 6eb45ac7a7d5..8a0cb0cc39ad 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -520,6 +520,8 @@ static int i915_drm_freeze(struct drm_device *dev)
 			return error;
 		}
 
+		flush_delayed_work(&dev_priv->rps.delayed_resume_work);
+
 		intel_runtime_pm_disable_interrupts(dev);
 		dev_priv->enable_hotplug_processing = false;
 
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index b00eae8e2fd6..ea514856a2c9 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -600,11 +600,12 @@ struct intel_context {
 
 struct i915_fbc {
 	unsigned long size;
+	unsigned threshold;
 	unsigned int fb_id;
 	enum plane plane;
 	int y;
 
-	struct drm_mm_node *compressed_fb;
+	struct drm_mm_node compressed_fb;
 	struct drm_mm_node *compressed_llb;
 
 	struct intel_fbc_work {
@@ -2487,7 +2488,7 @@ static inline void i915_gem_chipset_flush(struct drm_device *dev)
 
 /* i915_gem_stolen.c */
 int i915_gem_init_stolen(struct drm_device *dev);
-int i915_gem_stolen_setup_compression(struct drm_device *dev, int size);
+int i915_gem_stolen_setup_compression(struct drm_device *dev, int size, int fb_cpp);
 void i915_gem_stolen_cleanup_compression(struct drm_device *dev);
 void i915_gem_cleanup_stolen(struct drm_device *dev);
 struct drm_i915_gem_object *
diff --git a/drivers/gpu/drm/i915/i915_gem_stolen.c b/drivers/gpu/drm/i915/i915_gem_stolen.c
index 644117855e01..b695d184c487 100644
--- a/drivers/gpu/drm/i915/i915_gem_stolen.c
+++ b/drivers/gpu/drm/i915/i915_gem_stolen.c
@@ -103,30 +103,68 @@ static unsigned long i915_stolen_to_physical(struct drm_device *dev)
 	return base;
 }
 
-static int i915_setup_compression(struct drm_device *dev, int size)
+static int find_compression_threshold(struct drm_device *dev,
+				      struct drm_mm_node *node,
+				      int size,
+				      int fb_cpp)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct drm_mm_node *compressed_fb, *uninitialized_var(compressed_llb);
+	int compression_threshold = 1;
 	int ret;
 
-	compressed_fb = kzalloc(sizeof(*compressed_fb), GFP_KERNEL);
-	if (!compressed_fb)
-		goto err_llb;
+	/* HACK: This code depends on what we will do in *_enable_fbc. If that
+	 * code changes, this code needs to change as well.
+	 *
+	 * The enable_fbc code will attempt to use one of our 2 compression
+	 * thresholds, therefore, in that case, we only have 1 resort.
+	 */
 
-	/* Try to over-allocate to reduce reallocations and fragmentation */
-	ret = drm_mm_insert_node(&dev_priv->mm.stolen, compressed_fb,
+	/* Try to over-allocate to reduce reallocations and fragmentation. */
+	ret = drm_mm_insert_node(&dev_priv->mm.stolen, node,
 				 size <<= 1, 4096, DRM_MM_SEARCH_DEFAULT);
-	if (ret)
-		ret = drm_mm_insert_node(&dev_priv->mm.stolen, compressed_fb,
-					 size >>= 1, 4096,
-					 DRM_MM_SEARCH_DEFAULT);
-	if (ret)
+	if (ret == 0)
+		return compression_threshold;
+
+again:
+	/* HW's ability to limit the CFB is 1:4 */
+	if (compression_threshold > 4 ||
+	    (fb_cpp == 2 && compression_threshold == 2))
+		return 0;
+
+	ret = drm_mm_insert_node(&dev_priv->mm.stolen, node,
+				 size >>= 1, 4096,
+				 DRM_MM_SEARCH_DEFAULT);
+	if (ret && INTEL_INFO(dev)->gen <= 4) {
+		return 0;
+	} else if (ret) {
+		compression_threshold <<= 1;
+		goto again;
+	} else {
+		return compression_threshold;
+	}
+}
+
+static int i915_setup_compression(struct drm_device *dev, int size, int fb_cpp)
+{
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	struct drm_mm_node *uninitialized_var(compressed_llb);
+	int ret;
+
+	ret = find_compression_threshold(dev, &dev_priv->fbc.compressed_fb,
+					 size, fb_cpp);
+	if (!ret)
 		goto err_llb;
+	else if (ret > 1) {
+		DRM_INFO("Reducing the compressed framebuffer size. This may lead to less power savings than a non-reduced-size. Try to increase stolen memory size if available in BIOS.\n");
+
+	}
+
+	dev_priv->fbc.threshold = ret;
 
 	if (HAS_PCH_SPLIT(dev))
-		I915_WRITE(ILK_DPFC_CB_BASE, compressed_fb->start);
+		I915_WRITE(ILK_DPFC_CB_BASE, dev_priv->fbc.compressed_fb.start);
 	else if (IS_GM45(dev)) {
-		I915_WRITE(DPFC_CB_BASE, compressed_fb->start);
+		I915_WRITE(DPFC_CB_BASE, dev_priv->fbc.compressed_fb.start);
 	} else {
 		compressed_llb = kzalloc(sizeof(*compressed_llb), GFP_KERNEL);
 		if (!compressed_llb)
@@ -140,13 +178,12 @@ static int i915_setup_compression(struct drm_device *dev, int size)
 		dev_priv->fbc.compressed_llb = compressed_llb;
 
 		I915_WRITE(FBC_CFB_BASE,
-			   dev_priv->mm.stolen_base + compressed_fb->start);
+			   dev_priv->mm.stolen_base + dev_priv->fbc.compressed_fb.start);
 		I915_WRITE(FBC_LL_BASE,
 			   dev_priv->mm.stolen_base + compressed_llb->start);
 	}
 
-	dev_priv->fbc.compressed_fb = compressed_fb;
-	dev_priv->fbc.size = size;
+	dev_priv->fbc.size = size / dev_priv->fbc.threshold;
 
 	DRM_DEBUG_KMS("reserved %d bytes of contiguous stolen space for FBC\n",
 		      size);
@@ -155,14 +192,13 @@ static int i915_setup_compression(struct drm_device *dev, int size)
 
 err_fb:
 	kfree(compressed_llb);
-	drm_mm_remove_node(compressed_fb);
+	drm_mm_remove_node(&dev_priv->fbc.compressed_fb);
 err_llb:
-	kfree(compressed_fb);
 	pr_info_once("drm: not enough stolen space for compressed buffer (need %d more bytes), disabling. Hint: you may be able to increase stolen memory size in the BIOS to avoid this.\n", size);
 	return -ENOSPC;
 }
 
-int i915_gem_stolen_setup_compression(struct drm_device *dev, int size)
+int i915_gem_stolen_setup_compression(struct drm_device *dev, int size, int fb_cpp)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
 
@@ -175,7 +211,7 @@ int i915_gem_stolen_setup_compression(struct drm_device *dev, int size)
 	/* Release any current block */
 	i915_gem_stolen_cleanup_compression(dev);
 
-	return i915_setup_compression(dev, size);
+	return i915_setup_compression(dev, size, fb_cpp);
 }
 
 void i915_gem_stolen_cleanup_compression(struct drm_device *dev)
@@ -185,10 +221,7 @@ void i915_gem_stolen_cleanup_compression(struct drm_device *dev)
 	if (dev_priv->fbc.size == 0)
 		return;
 
-	if (dev_priv->fbc.compressed_fb) {
-		drm_mm_remove_node(dev_priv->fbc.compressed_fb);
-		kfree(dev_priv->fbc.compressed_fb);
-	}
+	drm_mm_remove_node(&dev_priv->fbc.compressed_fb);
 
 	if (dev_priv->fbc.compressed_llb) {
 		drm_mm_remove_node(dev_priv->fbc.compressed_llb);
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index ff6336793826..48d37586832c 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -2690,6 +2690,7 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
 	enum pipe pipe = intel_crtc->pipe;
 	struct drm_framebuffer *old_fb;
 	struct drm_i915_gem_object *obj = to_intel_framebuffer(fb)->obj;
+	struct drm_i915_gem_object *old_obj;
 	int ret;
 
 	if (intel_crtc_has_pending_flip(crtc)) {
@@ -2711,11 +2712,12 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
 	}
 
 	old_fb = crtc->primary->fb;
+	old_obj = old_fb ? to_intel_framebuffer(old_fb)->obj : NULL;
 
 	mutex_lock(&dev->struct_mutex);
 	ret = intel_pin_and_fence_fb_obj(dev, obj, NULL);
 	if (ret == 0)
-		i915_gem_track_fb(to_intel_framebuffer(old_fb)->obj, obj,
+		i915_gem_track_fb(old_obj, obj,
 				  INTEL_FRONTBUFFER_PRIMARY(pipe));
 	mutex_unlock(&dev->struct_mutex);
 	if (ret != 0) {
@@ -6207,8 +6209,8 @@ static void i9xx_get_plane_config(struct intel_crtc *crtc,
 	aligned_height = intel_align_height(dev, crtc->base.primary->fb->height,
 					    plane_config->tiled);
 
-	plane_config->size = ALIGN(crtc->base.primary->fb->pitches[0] *
-				   aligned_height, PAGE_SIZE);
+	plane_config->size = PAGE_ALIGN(crtc->base.primary->fb->pitches[0] *
+					aligned_height);
 
 	DRM_DEBUG_KMS("pipe/plane %d/%d with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
 		      pipe, plane, crtc->base.primary->fb->width,
@@ -7227,8 +7229,8 @@ static void ironlake_get_plane_config(struct intel_crtc *crtc,
 	aligned_height = intel_align_height(dev, crtc->base.primary->fb->height,
 					    plane_config->tiled);
 
-	plane_config->size = ALIGN(crtc->base.primary->fb->pitches[0] *
-				   aligned_height, PAGE_SIZE);
+	plane_config->size = PAGE_ALIGN(crtc->base.primary->fb->pitches[0] *
+					aligned_height);
 
 	DRM_DEBUG_KMS("pipe/plane %d/%d with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
 		      pipe, plane, crtc->base.primary->fb->width,
@@ -8316,7 +8318,7 @@ static u32
 intel_framebuffer_size_for_mode(struct drm_display_mode *mode, int bpp)
 {
 	u32 pitch = intel_framebuffer_pitch_for_width(mode->hdisplay, bpp);
-	return ALIGN(pitch * mode->vdisplay, PAGE_SIZE);
+	return PAGE_ALIGN(pitch * mode->vdisplay);
 }
 
 static struct drm_framebuffer *
diff --git a/drivers/gpu/drm/i915/intel_fbdev.c b/drivers/gpu/drm/i915/intel_fbdev.c
index 226fbc7d9464..b8eac8c4dae6 100644
--- a/drivers/gpu/drm/i915/intel_fbdev.c
+++ b/drivers/gpu/drm/i915/intel_fbdev.c
@@ -107,7 +107,7 @@ static int intelfb_alloc(struct drm_fb_helper *helper,
 							  sizes->surface_depth);
 
 	size = mode_cmd.pitches[0] * mode_cmd.height;
-	size = ALIGN(size, PAGE_SIZE);
+	size = PAGE_ALIGN(size);
 	obj = i915_gem_object_create_stolen(dev, size);
 	if (obj == NULL)
 		obj = i915_gem_alloc_object(dev, size);
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 1cce0a590979..2ce96364bac7 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -229,9 +229,20 @@ static void ironlake_enable_fbc(struct drm_crtc *crtc)
 
 	dpfc_ctl = DPFC_CTL_PLANE(intel_crtc->plane);
 	if (drm_format_plane_cpp(fb->pixel_format, 0) == 2)
+		dev_priv->fbc.threshold++;
+
+	switch (dev_priv->fbc.threshold) {
+	case 4:
+	case 3:
+		dpfc_ctl |= DPFC_CTL_LIMIT_4X;
+		break;
+	case 2:
 		dpfc_ctl |= DPFC_CTL_LIMIT_2X;
-	else
+		break;
+	case 1:
 		dpfc_ctl |= DPFC_CTL_LIMIT_1X;
+		break;
+	}
 	dpfc_ctl |= DPFC_CTL_FENCE_EN;
 	if (IS_GEN5(dev))
 		dpfc_ctl |= obj->fence_reg;
@@ -285,9 +296,21 @@ static void gen7_enable_fbc(struct drm_crtc *crtc)
 
 	dpfc_ctl = IVB_DPFC_CTL_PLANE(intel_crtc->plane);
 	if (drm_format_plane_cpp(fb->pixel_format, 0) == 2)
+		dev_priv->fbc.threshold++;
+
+	switch (dev_priv->fbc.threshold) {
+	case 4:
+	case 3:
+		dpfc_ctl |= DPFC_CTL_LIMIT_4X;
+		break;
+	case 2:
 		dpfc_ctl |= DPFC_CTL_LIMIT_2X;
-	else
+		break;
+	case 1:
 		dpfc_ctl |= DPFC_CTL_LIMIT_1X;
+		break;
+	}
+
 	dpfc_ctl |= IVB_DPFC_CTL_FENCE_EN;
 
 	I915_WRITE(ILK_DPFC_CONTROL, dpfc_ctl | DPFC_CTL_EN);
@@ -567,7 +590,8 @@ void intel_update_fbc(struct drm_device *dev)
 	if (in_dbg_master())
 		goto out_disable;
 
-	if (i915_gem_stolen_setup_compression(dev, intel_fb->obj->base.size)) {
+	if (i915_gem_stolen_setup_compression(dev, intel_fb->obj->base.size,
+					      drm_format_plane_cpp(fb->pixel_format, 0))) {
 		if (set_no_fbc_reason(dev_priv, FBC_STOLEN_TOO_SMALL))
 			DRM_DEBUG_KMS("framebuffer too large, disabling compression\n");
 		goto out_disable;
@@ -3486,15 +3510,23 @@ static void gen8_enable_rps(struct drm_device *dev)
 	for_each_ring(ring, dev_priv, unused)
 		I915_WRITE(RING_MAX_IDLE(ring->mmio_base), 10);
 	I915_WRITE(GEN6_RC_SLEEP, 0);
-	I915_WRITE(GEN6_RC6_THRESHOLD, 50000); /* 50/125ms per EI */
+	if (IS_BROADWELL(dev))
+		I915_WRITE(GEN6_RC6_THRESHOLD, 625); /* 800us/1.28 for TO */
+	else
+		I915_WRITE(GEN6_RC6_THRESHOLD, 50000); /* 50/125ms per EI */
 
 	/* 3: Enable RC6 */
 	if (intel_enable_rc6(dev) & INTEL_RC6_ENABLE)
 		rc6_mask = GEN6_RC_CTL_RC6_ENABLE;
 	intel_print_rc6_info(dev, rc6_mask);
-	I915_WRITE(GEN6_RC_CONTROL, GEN6_RC_CTL_HW_ENABLE |
-				    GEN6_RC_CTL_EI_MODE(1) |
-				    rc6_mask);
+	if (IS_BROADWELL(dev))
+		I915_WRITE(GEN6_RC_CONTROL, GEN6_RC_CTL_HW_ENABLE |
+				GEN7_RC_CTL_TO_MODE |
+				rc6_mask);
+	else
+		I915_WRITE(GEN6_RC_CONTROL, GEN6_RC_CTL_HW_ENABLE |
+				GEN6_RC_CTL_EI_MODE(1) |
+				rc6_mask);
 
 	/* 4 Program defaults and thresholds for RPS*/
 	I915_WRITE(GEN6_RPNSWREQ,