Merge tag 'drm-fixes-2022-06-17' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Regular drm fixes for rc3. Nothing too serious, i915, amdgpu and
  exynos all have a few small driver fixes, and two ttm fixes, and one
  compiler warning.

  atomic:
   - fix spurious compiler warning

  ttm:
   - add NULL ptr check in swapout code
   - fix bulk move handling

  i915:
   - Fix page fault on error state read
   - Fix memory leaks in per-gt sysfs
   - Fix multiple fence handling
   - Remove accidental static from a local variable

  amdgpu:
   - Fix regression in GTT size reporting
   - OLED backlight fix

  exynos:
   - Check a null pointer instead of IS_ERR()
   - Rework initialization code of Exynos MIC driver"

* tag 'drm-fixes-2022-06-17' of git://anongit.freedesktop.org/drm/drm:
  drm/amd/display: Cap OLED brightness per max frame-average luminance
  drm/amdgpu: Fix GTT size reporting in amdgpu_ioctl
  drm/exynos: mic: Rework initialization
  drm/exynos: fix IS_ERR() vs NULL check in probe
  drm/ttm: fix bulk move handling v2
  drm/i915/uc: remove accidental static from a local variable
  drm/i915: Individualize fences before adding to dma_resv obj
  drm/i915/gt: Fix memory leaks in per-gt sysfs
  drm/i915/reset: Fix error_state_read ptr + offset use
  drm/ttm: fix missing NULL check in ttm_device_swapout
  drm/atomic: fix warning of unused variable

17 files changed, 141 insertions, 115 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index 801f6fa692e98..6de63ea6687eb 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -642,7 +642,6 @@ int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
 			    atomic64_read(&adev->visible_pin_size),
 			    vram_gtt.vram_size);
 		vram_gtt.gtt_size = ttm_manager_type(&adev->mman.bdev, TTM_PL_TT)->size;
-		vram_gtt.gtt_size *= PAGE_SIZE;
 		vram_gtt.gtt_size -= atomic64_read(&adev->gart_pin_size);
 		return copy_to_user(out, &vram_gtt,
 				    min((size_t)size, sizeof(vram_gtt))) ? -EFAULT : 0;
@@ -675,7 +674,6 @@ int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
 			mem.cpu_accessible_vram.usable_heap_size * 3 / 4;
 
 		mem.gtt.total_heap_size = gtt_man->size;
-		mem.gtt.total_heap_size *= PAGE_SIZE;
 		mem.gtt.usable_heap_size = mem.gtt.total_heap_size -
 			atomic64_read(&adev->gart_pin_size);
 		mem.gtt.heap_usage = ttm_resource_manager_usage(gtt_man);
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 70be67a566737..39b425d83bb1a 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -2812,7 +2812,7 @@ static struct drm_mode_config_helper_funcs amdgpu_dm_mode_config_helperfuncs = {
 
 static void update_connector_ext_caps(struct amdgpu_dm_connector *aconnector)
 {
-	u32 max_cll, min_cll, max, min, q, r;
+	u32 max_avg, min_cll, max, min, q, r;
 	struct amdgpu_dm_backlight_caps *caps;
 	struct amdgpu_display_manager *dm;
 	struct drm_connector *conn_base;
@@ -2842,7 +2842,7 @@ static void update_connector_ext_caps(struct amdgpu_dm_connector *aconnector)
 	caps = &dm->backlight_caps[i];
 	caps->ext_caps = &aconnector->dc_link->dpcd_sink_ext_caps;
 	caps->aux_support = false;
-	max_cll = conn_base->hdr_sink_metadata.hdmi_type1.max_cll;
+	max_avg = conn_base->hdr_sink_metadata.hdmi_type1.max_fall;
 	min_cll = conn_base->hdr_sink_metadata.hdmi_type1.min_cll;
 
 	if (caps->ext_caps->bits.oled == 1 /*||
@@ -2870,8 +2870,8 @@ static void update_connector_ext_caps(struct amdgpu_dm_connector *aconnector)
 	 * The results of the above expressions can be verified at
 	 * pre_computed_values.
 	 */
-	q = max_cll >> 5;
-	r = max_cll % 32;
+	q = max_avg >> 5;
+	r = max_avg % 32;
 	max = (1 << q) * pre_computed_values[r];
 
 	// min luminance: maxLum * (CV/255)^2 / 100
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index 424ea23eec32a..16c539657f730 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -177,15 +177,15 @@ static struct exynos_drm_driver_info exynos_drm_drivers[] = {
 		DRV_PTR(mixer_driver, CONFIG_DRM_EXYNOS_MIXER),
 		DRM_COMPONENT_DRIVER
 	}, {
-		DRV_PTR(mic_driver, CONFIG_DRM_EXYNOS_MIC),
-		DRM_COMPONENT_DRIVER
-	}, {
 		DRV_PTR(dp_driver, CONFIG_DRM_EXYNOS_DP),
 		DRM_COMPONENT_DRIVER
 	}, {
 		DRV_PTR(dsi_driver, CONFIG_DRM_EXYNOS_DSI),
 		DRM_COMPONENT_DRIVER
 	}, {
+		DRV_PTR(mic_driver, CONFIG_DRM_EXYNOS_MIC),
+		DRM_COMPONENT_DRIVER
+	}, {
 		DRV_PTR(hdmi_driver, CONFIG_DRM_EXYNOS_HDMI),
 		DRM_COMPONENT_DRIVER
 	}, {
diff --git a/drivers/gpu/drm/exynos/exynos_drm_mic.c b/drivers/gpu/drm/exynos/exynos_drm_mic.c
index 9e06f8e2a8635..09ce28ee08d91 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_mic.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_mic.c
@@ -26,6 +26,7 @@
 #include <drm/drm_print.h>
 
 #include "exynos_drm_drv.h"
+#include "exynos_drm_crtc.h"
 
 /* Sysreg registers for MIC */
 #define DSD_CFG_MUX	0x1004
@@ -100,9 +101,7 @@ struct exynos_mic {
 
 	bool i80_mode;
 	struct videomode vm;
-	struct drm_encoder *encoder;
 	struct drm_bridge bridge;
-	struct drm_bridge *next_bridge;
 
 	bool enabled;
 };
@@ -229,8 +228,6 @@ static void mic_set_reg_on(struct exynos_mic *mic, bool enable)
 	writel(reg, mic->reg + MIC_OP);
 }
 
-static void mic_disable(struct drm_bridge *bridge) { }
-
 static void mic_post_disable(struct drm_bridge *bridge)
 {
 	struct exynos_mic *mic = bridge->driver_private;
@@ -297,34 +294,30 @@ unlock:
 	mutex_unlock(&mic_mutex);
 }
 
-static void mic_enable(struct drm_bridge *bridge) { }
-
-static int mic_attach(struct drm_bridge *bridge,
-		      enum drm_bridge_attach_flags flags)
-{
-	struct exynos_mic *mic = bridge->driver_private;
-
-	return drm_bridge_attach(bridge->encoder, mic->next_bridge,
-				 &mic->bridge, flags);
-}
-
 static const struct drm_bridge_funcs mic_bridge_funcs = {
-	.disable = mic_disable,
 	.post_disable = mic_post_disable,
 	.mode_set = mic_mode_set,
 	.pre_enable = mic_pre_enable,
-	.enable = mic_enable,
-	.attach = mic_attach,
 };
 
 static int exynos_mic_bind(struct device *dev, struct device *master,
 			   void *data)
 {
 	struct exynos_mic *mic = dev_get_drvdata(dev);
+	struct drm_device *drm_dev = data;
+	struct exynos_drm_crtc *crtc = exynos_drm_crtc_get_by_type(drm_dev,
+						       EXYNOS_DISPLAY_TYPE_LCD);
+	struct drm_encoder *e, *encoder = NULL;
+
+	drm_for_each_encoder(e, drm_dev)
+		if (e->possible_crtcs == drm_crtc_mask(&crtc->base))
+			encoder = e;
+	if (!encoder)
+		return -ENODEV;
 
 	mic->bridge.driver_private = mic;
 
-	return 0;
+	return drm_bridge_attach(encoder, &mic->bridge, NULL, 0);
 }
 
 static void exynos_mic_unbind(struct device *dev, struct device *master,
@@ -388,7 +381,6 @@ static int exynos_mic_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct exynos_mic *mic;
-	struct device_node *remote;
 	struct resource res;
 	int ret, i;
 
@@ -432,16 +424,6 @@ static int exynos_mic_probe(struct platform_device *pdev)
 		}
 	}
 
-	remote = of_graph_get_remote_node(dev->of_node, 1, 0);
-	mic->next_bridge = of_drm_find_bridge(remote);
-	if (IS_ERR(mic->next_bridge)) {
-		DRM_DEV_ERROR(dev, "mic: Failed to find next bridge\n");
-		ret = PTR_ERR(mic->next_bridge);
-		goto err;
-	}
-
-	of_node_put(remote);
-
 	platform_set_drvdata(pdev, mic);
 
 	mic->bridge.funcs = &mic_bridge_funcs;
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
index c326bd2b444fc..30fe847c6664d 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
@@ -999,7 +999,8 @@ static int eb_validate_vmas(struct i915_execbuffer *eb)
 			}
 		}
 
-		err = dma_resv_reserve_fences(vma->obj->base.resv, 1);
+		/* Reserve enough slots to accommodate composite fences */
+		err = dma_resv_reserve_fences(vma->obj->base.resv, eb->num_batches);
 		if (err)
 			return err;
 
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
index 53307ca0eed0c..51a0fe60c050d 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt.c
@@ -785,6 +785,7 @@ void intel_gt_driver_unregister(struct intel_gt *gt)
 {
 	intel_wakeref_t wakeref;
 
+	intel_gt_sysfs_unregister(gt);
 	intel_rps_driver_unregister(&gt->rps);
 	intel_gsc_fini(&gt->gsc);
 
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_sysfs.c b/drivers/gpu/drm/i915/gt/intel_gt_sysfs.c
index 8ec8bc660c8c2..9e4ebf53379bc 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_sysfs.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt_sysfs.c
@@ -24,7 +24,7 @@ bool is_object_gt(struct kobject *kobj)
 
 static struct intel_gt *kobj_to_gt(struct kobject *kobj)
 {
-	return container_of(kobj, struct kobj_gt, base)->gt;
+	return container_of(kobj, struct intel_gt, sysfs_gt);
 }
 
 struct intel_gt *intel_gt_sysfs_get_drvdata(struct device *dev,
@@ -72,9 +72,9 @@ static struct attribute *id_attrs[] = {
 };
 ATTRIBUTE_GROUPS(id);
 
+/* A kobject needs a release() method even if it does nothing */
 static void kobj_gt_release(struct kobject *kobj)
 {
-	kfree(kobj);
 }
 
 static struct kobj_type kobj_gt_type = {
@@ -85,8 +85,6 @@ static struct kobj_type kobj_gt_type = {
 
 void intel_gt_sysfs_register(struct intel_gt *gt)
 {
-	struct kobj_gt *kg;
-
 	/*
 	 * We need to make things right with the
 	 * ABI compatibility. The files were originally
@@ -98,25 +96,22 @@ void intel_gt_sysfs_register(struct intel_gt *gt)
 	if (gt_is_root(gt))
 		intel_gt_sysfs_pm_init(gt, gt_get_parent_obj(gt));
 
-	kg = kzalloc(sizeof(*kg), GFP_KERNEL);
-	if (!kg)
+	/* init and xfer ownership to sysfs tree */
+	if (kobject_init_and_add(&gt->sysfs_gt, &kobj_gt_type,
+				 gt->i915->sysfs_gt, "gt%d", gt->info.id))
 		goto exit_fail;
 
-	kobject_init(&kg->base, &kobj_gt_type);
-	kg->gt = gt;
-
-	/* xfer ownership to sysfs tree */
-	if (kobject_add(&kg->base, gt->i915->sysfs_gt, "gt%d", gt->info.id))
-		goto exit_kobj_put;
-
-	intel_gt_sysfs_pm_init(gt, &kg->base);
+	intel_gt_sysfs_pm_init(gt, &gt->sysfs_gt);
 
 	return;
 
-exit_kobj_put:
-	kobject_put(&kg->base);
-
 exit_fail:
+	kobject_put(&gt->sysfs_gt);
 	drm_warn(&gt->i915->drm,
 		 "failed to initialize gt%d sysfs root\n", gt->info.id);
 }
+
+void intel_gt_sysfs_unregister(struct intel_gt *gt)
+{
+	kobject_put(&gt->sysfs_gt);
+}
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_sysfs.h b/drivers/gpu/drm/i915/gt/intel_gt_sysfs.h
index 9471b26752cfc..a99aa7e8b01a6 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_sysfs.h
+++ b/drivers/gpu/drm/i915/gt/intel_gt_sysfs.h
@@ -13,11 +13,6 @@
 
 struct intel_gt;
 
-struct kobj_gt {
-	struct kobject base;
-	struct intel_gt *gt;
-};
-
 bool is_object_gt(struct kobject *kobj);
 
 struct drm_i915_private *kobj_to_i915(struct kobject *kobj);
@@ -28,6 +23,7 @@ intel_gt_create_kobj(struct intel_gt *gt,
 		     const char *name);
 
 void intel_gt_sysfs_register(struct intel_gt *gt);
+void intel_gt_sysfs_unregister(struct intel_gt *gt);
 struct intel_gt *intel_gt_sysfs_get_drvdata(struct device *dev,
 					    const char *name);
 
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_types.h b/drivers/gpu/drm/i915/gt/intel_gt_types.h
index b06611c1d4ada..edd7a3cf5f5f5 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_types.h
+++ b/drivers/gpu/drm/i915/gt/intel_gt_types.h
@@ -224,6 +224,9 @@ struct intel_gt {
 	} mocs;
 
 	struct intel_pxp pxp;
+
+	/* gt/gtN sysfs */
+	struct kobject sysfs_gt;
 };
 
 enum intel_gt_scratch_field {
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 d078f884b5e32..f0d7b57b741e7 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
@@ -156,7 +156,7 @@ __uc_fw_auto_select(struct drm_i915_private *i915, struct intel_uc_fw *uc_fw)
 		[INTEL_UC_FW_TYPE_GUC] = { blobs_guc, ARRAY_SIZE(blobs_guc) },
 		[INTEL_UC_FW_TYPE_HUC] = { blobs_huc, ARRAY_SIZE(blobs_huc) },
 	};
-	static const struct uc_fw_platform_requirement *fw_blobs;
+	const struct uc_fw_platform_requirement *fw_blobs;
 	enum intel_platform p = INTEL_INFO(i915)->platform;
 	u32 fw_count;
 	u8 rev = INTEL_REVID(i915);
diff --git a/drivers/gpu/drm/i915/i915_sysfs.c b/drivers/gpu/drm/i915/i915_sysfs.c
index 8521daba212a7..1e27502108313 100644
--- a/drivers/gpu/drm/i915/i915_sysfs.c
+++ b/drivers/gpu/drm/i915/i915_sysfs.c
@@ -166,7 +166,14 @@ static ssize_t error_state_read(struct file *filp, struct kobject *kobj,
 	struct device *kdev = kobj_to_dev(kobj);
 	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
 	struct i915_gpu_coredump *gpu;
-	ssize_t ret;
+	ssize_t ret = 0;
+
+	/*
+	 * FIXME: Concurrent clients triggering resets and reading + clearing
+	 * dumps can cause inconsistent sysfs reads when a user calls in with a
+	 * non-zero offset to complete a prior partial read but the
+	 * gpu_coredump has been cleared or replaced.
+	 */
 
 	gpu = i915_first_error_state(i915);
 	if (IS_ERR(gpu)) {
@@ -178,8 +185,10 @@ static ssize_t error_state_read(struct file *filp, struct kobject *kobj,
 		const char *str = "No error state collected\n";
 		size_t len = strlen(str);
 
-		ret = min_t(size_t, count, len - off);
-		memcpy(buf, str + off, ret);
+		if (off < len) {
+			ret = min_t(size_t, count, len - off);
+			memcpy(buf, str + off, ret);
+		}
 	}
 
 	return ret;
@@ -259,4 +268,6 @@ void i915_teardown_sysfs(struct drm_i915_private *dev_priv)
 
 	device_remove_bin_file(kdev,  &dpf_attrs_1);
 	device_remove_bin_file(kdev,  &dpf_attrs);
+
+	kobject_put(dev_priv->sysfs_gt);
 }
diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c
index 4f6db539571aa..0bffb70b3c5f5 100644
--- a/drivers/gpu/drm/i915/i915_vma.c
+++ b/drivers/gpu/drm/i915/i915_vma.c
@@ -23,6 +23,7 @@
  */
 
 #include <linux/sched/mm.h>
+#include <linux/dma-fence-array.h>
 #include <drm/drm_gem.h>
 
 #include "display/intel_frontbuffer.h"
@@ -1823,6 +1824,21 @@ int _i915_vma_move_to_active(struct i915_vma *vma,
 	if (unlikely(err))
 		return err;
 
+	/*
+	 * Reserve fences slot early to prevent an allocation after preparing
+	 * the workload and associating fences with dma_resv.
+	 */
+	if (fence && !(flags & __EXEC_OBJECT_NO_RESERVE)) {
+		struct dma_fence *curr;
+		int idx;
+
+		dma_fence_array_for_each(curr, idx, fence)
+			;
+		err = dma_resv_reserve_fences(vma->obj->base.resv, idx);
+		if (unlikely(err))
+			return err;
+	}
+
 	if (flags & EXEC_OBJECT_WRITE) {
 		struct intel_frontbuffer *front;
 
@@ -1832,31 +1848,23 @@ int _i915_vma_move_to_active(struct i915_vma *vma,
 				i915_active_add_request(&front->write, rq);
 			intel_frontbuffer_put(front);
 		}
+	}
 
-		if (!(flags & __EXEC_OBJECT_NO_RESERVE)) {
-			err = dma_resv_reserve_fences(vma->obj->base.resv, 1);
-			if (unlikely(err))
-				return err;
-		}
+	if (fence) {
+		struct dma_fence *curr;
+		enum dma_resv_usage usage;
+		int idx;
 
-		if (fence) {
-			dma_resv_add_fence(vma->obj->base.resv, fence,
-					   DMA_RESV_USAGE_WRITE);
+		obj->read_domains = 0;
+		if (flags & EXEC_OBJECT_WRITE) {
+			usage = DMA_RESV_USAGE_WRITE;
 			obj->write_domain = I915_GEM_DOMAIN_RENDER;
-			obj->read_domains = 0;
-		}
-	} else {
-		if (!(flags & __EXEC_OBJECT_NO_RESERVE)) {
-			err = dma_resv_reserve_fences(vma->obj->base.resv, 1);
-			if (unlikely(err))
-				return err;
+		} else {
+			usage = DMA_RESV_USAGE_READ;
 		}
 
-		if (fence) {
-			dma_resv_add_fence(vma->obj->base.resv, fence,
-					   DMA_RESV_USAGE_READ);
-			obj->write_domain = 0;
-		}
+		dma_fence_array_for_each(curr, idx, fence)
+			dma_resv_add_fence(vma->obj->base.resv, curr, usage);
 	}
 
 	if (flags & EXEC_OBJECT_NEEDS_FENCE && vma->fence)
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 75d308ec173d3..406e9c324e76a 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -109,11 +109,11 @@ void ttm_bo_set_bulk_move(struct ttm_buffer_object *bo,
 		return;
 
 	spin_lock(&bo->bdev->lru_lock);
-	if (bo->bulk_move && bo->resource)
-		ttm_lru_bulk_move_del(bo->bulk_move, bo->resource);
+	if (bo->resource)
+		ttm_resource_del_bulk_move(bo->resource, bo);
 	bo->bulk_move = bulk;
-	if (bo->bulk_move && bo->resource)
-		ttm_lru_bulk_move_add(bo->bulk_move, bo->resource);
+	if (bo->resource)
+		ttm_resource_add_bulk_move(bo->resource, bo);
 	spin_unlock(&bo->bdev->lru_lock);
 }
 EXPORT_SYMBOL(ttm_bo_set_bulk_move);
@@ -689,8 +689,11 @@ void ttm_bo_pin(struct ttm_buffer_object *bo)
 {
 	dma_resv_assert_held(bo->base.resv);
 	WARN_ON_ONCE(!kref_read(&bo->kref));
-	if (!(bo->pin_count++) && bo->bulk_move && bo->resource)
-		ttm_lru_bulk_move_del(bo->bulk_move, bo->resource);
+	spin_lock(&bo->bdev->lru_lock);
+	if (bo->resource)
+		ttm_resource_del_bulk_move(bo->resource, bo);
+	++bo->pin_count;
+	spin_unlock(&bo->bdev->lru_lock);
 }
 EXPORT_SYMBOL(ttm_bo_pin);
 
@@ -707,8 +710,11 @@ void ttm_bo_unpin(struct ttm_buffer_object *bo)
 	if (WARN_ON_ONCE(!bo->pin_count))
 		return;
 
-	if (!(--bo->pin_count) && bo->bulk_move && bo->resource)
-		ttm_lru_bulk_move_add(bo->bulk_move, bo->resource);
+	spin_lock(&bo->bdev->lru_lock);
+	--bo->pin_count;
+	if (bo->resource)
+		ttm_resource_add_bulk_move(bo->resource, bo);
+	spin_unlock(&bo->bdev->lru_lock);
 }
 EXPORT_SYMBOL(ttm_bo_unpin);
 
diff --git a/drivers/gpu/drm/ttm/ttm_device.c b/drivers/gpu/drm/ttm/ttm_device.c
index a0562ab386f51..e7147e3046378 100644
--- a/drivers/gpu/drm/ttm/ttm_device.c
+++ b/drivers/gpu/drm/ttm/ttm_device.c
@@ -156,8 +156,12 @@ int ttm_device_swapout(struct ttm_device *bdev, struct ttm_operation_ctx *ctx,
 
 		ttm_resource_manager_for_each_res(man, &cursor, res) {
 			struct ttm_buffer_object *bo = res->bo;
-			uint32_t num_pages = PFN_UP(bo->base.size);
+			uint32_t num_pages;
 
+			if (!bo)
+				continue;
+
+			num_pages = PFN_UP(bo->base.size);
 			ret = ttm_bo_swapout(bo, ctx, gfp_flags);
 			/* ttm_bo_swapout has dropped the lru_lock */
 			if (!ret)
diff --git a/drivers/gpu/drm/ttm/ttm_resource.c b/drivers/gpu/drm/ttm/ttm_resource.c
index 65889b3caf502..20f9adcc3235f 100644
--- a/drivers/gpu/drm/ttm/ttm_resource.c
+++ b/drivers/gpu/drm/ttm/ttm_resource.c
@@ -91,8 +91,8 @@ static void ttm_lru_bulk_move_pos_tail(struct ttm_lru_bulk_move_pos *pos,
 }
 
 /* Add the resource to a bulk_move cursor */
-void ttm_lru_bulk_move_add(struct ttm_lru_bulk_move *bulk,
-			   struct ttm_resource *res)
+static void ttm_lru_bulk_move_add(struct ttm_lru_bulk_move *bulk,
+				  struct ttm_resource *res)
 {
 	struct ttm_lru_bulk_move_pos *pos = ttm_lru_bulk_move_pos(bulk, res);
 
@@ -105,8 +105,8 @@ void ttm_lru_bulk_move_add(struct ttm_lru_bulk_move *bulk,
 }
 
 /* Remove the resource from a bulk_move range */
-void ttm_lru_bulk_move_del(struct ttm_lru_bulk_move *bulk,
-			   struct ttm_resource *res)
+static void ttm_lru_bulk_move_del(struct ttm_lru_bulk_move *bulk,
+				  struct ttm_resource *res)
 {
 	struct ttm_lru_bulk_move_pos *pos = ttm_lru_bulk_move_pos(bulk, res);
 
@@ -122,6 +122,22 @@ void ttm_lru_bulk_move_del(struct ttm_lru_bulk_move *bulk,
 	}
 }
 
+/* Add the resource to a bulk move if the BO is configured for it */
+void ttm_resource_add_bulk_move(struct ttm_resource *res,
+				struct ttm_buffer_object *bo)
+{
+	if (bo->bulk_move && !bo->pin_count)
+		ttm_lru_bulk_move_add(bo->bulk_move, res);
+}
+
+/* Remove the resource from a bulk move if the BO is configured for it */
+void ttm_resource_del_bulk_move(struct ttm_resource *res,
+				struct ttm_buffer_object *bo)
+{
+	if (bo->bulk_move && !bo->pin_count)
+		ttm_lru_bulk_move_del(bo->bulk_move, res);
+}
+
 /* Move a resource to the LRU or bulk tail */
 void ttm_resource_move_to_lru_tail(struct ttm_resource *res)
 {
@@ -169,15 +185,14 @@ void ttm_resource_init(struct ttm_buffer_object *bo,
 	res->bus.is_iomem = false;
 	res->bus.caching = ttm_cached;
 	res->bo = bo;
-	INIT_LIST_HEAD(&res->lru);
 
 	man = ttm_manager_type(bo->bdev, place->mem_type);
 	spin_lock(&bo->bdev->lru_lock);
-	man->usage += res->num_pages << PAGE_SHIFT;
-	if (bo->bulk_move)
-		ttm_lru_bulk_move_add(bo->bulk_move, res);
+	if (bo->pin_count)
+		list_add_tail(&res->lru, &bo->bdev->pinned);
 	else
-		ttm_resource_move_to_lru_tail(res);
+		list_add_tail(&res->lru, &man->lru[bo->priority]);
+	man->usage += res->num_pages << PAGE_SHIFT;
 	spin_unlock(&bo->bdev->lru_lock);
 }
 EXPORT_SYMBOL(ttm_resource_init);
@@ -210,8 +225,16 @@ int ttm_resource_alloc(struct ttm_buffer_object *bo,
 {
 	struct ttm_resource_manager *man =
 		ttm_manager_type(bo->bdev, place->mem_type);
+	int ret;
+
+	ret = man->func->alloc(man, bo, place, res_ptr);
+	if (ret)
+		return ret;
 
-	return man->func->alloc(man, bo, place, res_ptr);
+	spin_lock(&bo->bdev->lru_lock);
+	ttm_resource_add_bulk_move(*res_ptr, bo);
+	spin_unlock(&bo->bdev->lru_lock);
+	return 0;
 }
 
 void ttm_resource_free(struct ttm_buffer_object *bo, struct ttm_resource **res)
@@ -221,12 +244,9 @@ void ttm_resource_free(struct ttm_buffer_object *bo, struct ttm_resource **res)
 	if (!*res)
 		return;
 
-	if (bo->bulk_move) {
-		spin_lock(&bo->bdev->lru_lock);
-		ttm_lru_bulk_move_del(bo->bulk_move, *res);
-		spin_unlock(&bo->bdev->lru_lock);
-	}
-
+	spin_lock(&bo->bdev->lru_lock);
+	ttm_resource_del_bulk_move(*res, bo);
+	spin_unlock(&bo->bdev->lru_lock);
 	man = ttm_manager_type(bo->bdev, (*res)->mem_type);
 	man->func->free(man, *res);
 	*res = NULL;
diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h
index 0777725085df6..10b1990bc1f68 100644
--- a/include/drm/drm_atomic.h
+++ b/include/drm/drm_atomic.h
@@ -1022,6 +1022,7 @@ void drm_state_dump(struct drm_device *dev, struct drm_printer *p);
 	for ((__i) = 0; \
 	     (__i) < (__state)->num_private_objs && \
 		     ((obj) = (__state)->private_objs[__i].ptr, \
+		      (void)(obj) /* Only to avoid unused-but-set-variable warning */, \
 		      (new_obj_state) = (__state)->private_objs[__i].new_state, 1); \
 	     (__i)++)
 
diff --git a/include/drm/ttm/ttm_resource.h b/include/drm/ttm/ttm_resource.h
index 441653693970c..ca89a48c24609 100644
--- a/include/drm/ttm/ttm_resource.h
+++ b/include/drm/ttm/ttm_resource.h
@@ -311,12 +311,12 @@ ttm_resource_manager_cleanup(struct ttm_resource_manager *man)
 }
 
 void ttm_lru_bulk_move_init(struct ttm_lru_bulk_move *bulk);
-void ttm_lru_bulk_move_add(struct ttm_lru_bulk_move *bulk,
-			   struct ttm_resource *res);
-void ttm_lru_bulk_move_del(struct ttm_lru_bulk_move *bulk,
-			   struct ttm_resource *res);
 void ttm_lru_bulk_move_tail(struct ttm_lru_bulk_move *bulk);
 
+void ttm_resource_add_bulk_move(struct ttm_resource *res,
+				struct ttm_buffer_object *bo);
+void ttm_resource_del_bulk_move(struct ttm_resource *res,
+				struct ttm_buffer_object *bo);
 void ttm_resource_move_to_lru_tail(struct ttm_resource *res);
 
 void ttm_resource_init(struct ttm_buffer_object *bo,