Merge tag 'drm-misc-next-2018-11-21' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for v4.21, part 2:

UAPI Changes:
- Remove syncobj timeline support from drm.

Cross-subsystem Changes:
- Document canvas provider node in the DT bindings.
- Improve documentation for TPO TPG110 DT bindings.

Core Changes:
- Use explicit state in drm atomic functions.
- Add panel quirk for new GPD Win2 firmware.
- Add DRM_FORMAT_XYUV8888.
- Set the default import/export function in prime to drm_gem_prime_import/export.
- Add a separate drm_gem_object_funcs, to stop relying on dev->driver->*gem* functions.
- Make sure that tinydrm sets the virtual address also on imported buffers.

Driver Changes:
- Support active-low data enable signal in sun4i.
- Fix scaling in vc4.
- Use canvas provider node in meson.
- Remove unused variables in sti and qxl and cirrus.
- Add overlay plane support and primary plane scaling to meson.
- i2c fixes in drm/bridge/sii902x
- Fix mailbox read size in rockchip.
- Spelling fix in panel/s6d16d0.
- Remove unnecessary null check from qxl_bo_unref.
- Remove unused arguments from qxl_bo_pin.
- Fix qxl cursor pinning.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/9c0409e3-a85f-d2af-b4eb-baf1eb8bbae4@linux.intel.com

drivers/gpu/drm/virtio/virtgpu_drv.h

@@ -47,8 +47,8 @@
 #define DRIVER_DATE "0"
 
 #define DRIVER_MAJOR 0
-#define DRIVER_MINOR 0
-#define DRIVER_PATCHLEVEL 1
+#define DRIVER_MINOR 1
+#define DRIVER_PATCHLEVEL 0
 
 /* virtgpu_drm_bus.c */
 int drm_virtio_init(struct drm_driver *driver, struct virtio_device *vdev);
@@ -131,6 +131,7 @@ struct virtio_gpu_framebuffer {
 	int x1, y1, x2, y2; /* dirty rect */
 	spinlock_t dirty_lock;
 	uint32_t hw_res_handle;
+	struct virtio_gpu_fence *fence;
 };
 #define to_virtio_gpu_framebuffer(x) \
 	container_of(x, struct virtio_gpu_framebuffer, base)
@@ -346,6 +347,9 @@ void virtio_gpu_ttm_fini(struct virtio_gpu_device *vgdev);
 int virtio_gpu_mmap(struct file *filp, struct vm_area_struct *vma);
 
 /* virtio_gpu_fence.c */
+struct virtio_gpu_fence *virtio_gpu_fence_alloc(
+	struct virtio_gpu_device *vgdev);
+void virtio_gpu_fence_cleanup(struct virtio_gpu_fence *fence);
 int virtio_gpu_fence_emit(struct virtio_gpu_device *vgdev,
 			  struct virtio_gpu_ctrl_hdr *cmd_hdr,
 			  struct virtio_gpu_fence **fence);

drivers/gpu/drm/virtio/virtgpu_fence.c

@@ -67,6 +67,28 @@ static const struct dma_fence_ops virtio_fence_ops = {
 	.timeline_value_str  = virtio_timeline_value_str,
 };
 
+struct virtio_gpu_fence *virtio_gpu_fence_alloc(struct virtio_gpu_device *vgdev)
+{
+	struct virtio_gpu_fence_driver *drv = &vgdev->fence_drv;
+	struct virtio_gpu_fence *fence = kzalloc(sizeof(struct virtio_gpu_fence),
+							GFP_ATOMIC);
+	if (!fence)
+		return fence;
+
+	fence->drv = drv;
+	dma_fence_init(&fence->f, &virtio_fence_ops, &drv->lock, drv->context, 0);
+
+	return fence;
+}
+
+void virtio_gpu_fence_cleanup(struct virtio_gpu_fence *fence)
+{
+	if (!fence)
+		return;
+
+	dma_fence_put(&fence->f);
+}
+
 int virtio_gpu_fence_emit(struct virtio_gpu_device *vgdev,
 			  struct virtio_gpu_ctrl_hdr *cmd_hdr,
 			  struct virtio_gpu_fence **fence)
@@ -74,15 +96,8 @@ int virtio_gpu_fence_emit(struct virtio_gpu_device *vgdev,
 	struct virtio_gpu_fence_driver *drv = &vgdev->fence_drv;
 	unsigned long irq_flags;
 
-	*fence = kmalloc(sizeof(struct virtio_gpu_fence), GFP_ATOMIC);
-	if ((*fence) == NULL)
-		return -ENOMEM;
-
 	spin_lock_irqsave(&drv->lock, irq_flags);
-	(*fence)->drv = drv;
 	(*fence)->seq = ++drv->sync_seq;
-	dma_fence_init(&(*fence)->f, &virtio_fence_ops, &drv->lock,
-		       drv->context, (*fence)->seq);
 	dma_fence_get(&(*fence)->f);
 	list_add_tail(&(*fence)->node, &drv->fences);
 	spin_unlock_irqrestore(&drv->lock, irq_flags);

drivers/gpu/drm/virtio/virtgpu_ioctl.c

@@ -28,6 +28,7 @@
 #include <drm/drmP.h>
 #include <drm/virtgpu_drm.h>
 #include <drm/ttm/ttm_execbuf_util.h>
+#include <linux/sync_file.h>
 
 #include "virtgpu_drv.h"
 
@@ -105,7 +106,7 @@ static int virtio_gpu_execbuffer_ioctl(struct drm_device *dev, void *data,
 	struct virtio_gpu_device *vgdev = dev->dev_private;
 	struct virtio_gpu_fpriv *vfpriv = drm_file->driver_priv;
 	struct drm_gem_object *gobj;
-	struct virtio_gpu_fence *fence;
+	struct virtio_gpu_fence *out_fence;
 	struct virtio_gpu_object *qobj;
 	int ret;
 	uint32_t *bo_handles = NULL;
@@ -114,11 +115,46 @@ static int virtio_gpu_execbuffer_ioctl(struct drm_device *dev, void *data,
 	struct ttm_validate_buffer *buflist = NULL;
 	int i;
 	struct ww_acquire_ctx ticket;
+	struct sync_file *sync_file;
+	int in_fence_fd = exbuf->fence_fd;
+	int out_fence_fd = -1;
 	void *buf;
 
 	if (vgdev->has_virgl_3d == false)
 		return -ENOSYS;
 
+	if ((exbuf->flags & ~VIRTGPU_EXECBUF_FLAGS))
+		return -EINVAL;
+
+	exbuf->fence_fd = -1;
+
+	if (exbuf->flags & VIRTGPU_EXECBUF_FENCE_FD_IN) {
+		struct dma_fence *in_fence;
+
+		in_fence = sync_file_get_fence(in_fence_fd);
+
+		if (!in_fence)
+			return -EINVAL;
+
+		/*
+		 * Wait if the fence is from a foreign context, or if the fence
+		 * array contains any fence from a foreign context.
+		 */
+		ret = 0;
+		if (!dma_fence_match_context(in_fence, vgdev->fence_drv.context))
+			ret = dma_fence_wait(in_fence, true);
+
+		dma_fence_put(in_fence);
+		if (ret)
+			return ret;
+	}
+
+	if (exbuf->flags & VIRTGPU_EXECBUF_FENCE_FD_OUT) {
+		out_fence_fd = get_unused_fd_flags(O_CLOEXEC);
+		if (out_fence_fd < 0)
+			return out_fence_fd;
+	}
+
 	INIT_LIST_HEAD(&validate_list);
 	if (exbuf->num_bo_handles) {
 
@@ -128,26 +164,22 @@ static int virtio_gpu_execbuffer_ioctl(struct drm_device *dev, void *data,
 					   sizeof(struct ttm_validate_buffer),
 					   GFP_KERNEL | __GFP_ZERO);
 		if (!bo_handles || !buflist) {
-			kvfree(bo_handles);
-			kvfree(buflist);
-			return -ENOMEM;
+			ret = -ENOMEM;
+			goto out_unused_fd;
 		}
 
 		user_bo_handles = (void __user *)(uintptr_t)exbuf->bo_handles;
 		if (copy_from_user(bo_handles, user_bo_handles,
 				   exbuf->num_bo_handles * sizeof(uint32_t))) {
 			ret = -EFAULT;
-			kvfree(bo_handles);
-			kvfree(buflist);
-			return ret;
+			goto out_unused_fd;
 		}
 
 		for (i = 0; i < exbuf->num_bo_handles; i++) {
 			gobj = drm_gem_object_lookup(drm_file, bo_handles[i]);
 			if (!gobj) {
-				kvfree(bo_handles);
-				kvfree(buflist);
-				return -ENOENT;
+				ret = -ENOENT;
+				goto out_unused_fd;
 			}
 
 			qobj = gem_to_virtio_gpu_obj(gobj);
@@ -156,6 +188,7 @@ static int virtio_gpu_execbuffer_ioctl(struct drm_device *dev, void *data,
 			list_add(&buflist[i].head, &validate_list);
 		}
 		kvfree(bo_handles);
+		bo_handles = NULL;
 	}
 
 	ret = virtio_gpu_object_list_validate(&ticket, &validate_list);
@@ -168,22 +201,48 @@ static int virtio_gpu_execbuffer_ioctl(struct drm_device *dev, void *data,
 		ret = PTR_ERR(buf);
 		goto out_unresv;
 	}
-	virtio_gpu_cmd_submit(vgdev, buf, exbuf->size,
-			      vfpriv->ctx_id, &fence);
 
-	ttm_eu_fence_buffer_objects(&ticket, &validate_list, &fence->f);
+	out_fence = virtio_gpu_fence_alloc(vgdev);
+	if(!out_fence) {
+		ret = -ENOMEM;
+		goto out_memdup;
+	}
+
+	if (out_fence_fd >= 0) {
+		sync_file = sync_file_create(&out_fence->f);
+		if (!sync_file) {
+			dma_fence_put(&out_fence->f);
+			ret = -ENOMEM;
+			goto out_memdup;
+		}
+
+		exbuf->fence_fd = out_fence_fd;
+		fd_install(out_fence_fd, sync_file->file);
+	}
+
+	virtio_gpu_cmd_submit(vgdev, buf, exbuf->size,
+			      vfpriv->ctx_id, &out_fence);
+
+	ttm_eu_fence_buffer_objects(&ticket, &validate_list, &out_fence->f);
 
 	/* fence the command bo */
 	virtio_gpu_unref_list(&validate_list);
 	kvfree(buflist);
-	dma_fence_put(&fence->f);
 	return 0;
 
+out_memdup:
+	kfree(buf);
 out_unresv:
 	ttm_eu_backoff_reservation(&ticket, &validate_list);
 out_free:
 	virtio_gpu_unref_list(&validate_list);
+out_unused_fd:
+	kvfree(bo_handles);
 	kvfree(buflist);
+
+	if (out_fence_fd >= 0)
+		put_unused_fd(out_fence_fd);
+
 	return ret;
 }
 
@@ -283,11 +342,17 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
 		rc_3d.nr_samples = cpu_to_le32(rc->nr_samples);
 		rc_3d.flags = cpu_to_le32(rc->flags);
 
+		fence = virtio_gpu_fence_alloc(vgdev);
+		if (!fence) {
+			ret = -ENOMEM;
+			goto fail_backoff;
+		}
+
 		virtio_gpu_cmd_resource_create_3d(vgdev, qobj, &rc_3d, NULL);
 		ret = virtio_gpu_object_attach(vgdev, qobj, &fence);
 		if (ret) {
-			ttm_eu_backoff_reservation(&ticket, &validate_list);
-			goto fail_unref;
+			virtio_gpu_fence_cleanup(fence);
+			goto fail_backoff;
 		}
 		ttm_eu_fence_buffer_objects(&ticket, &validate_list, &fence->f);
 	}
@@ -312,6 +377,8 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
 		dma_fence_put(&fence->f);
 	}
 	return 0;
+fail_backoff:
+	ttm_eu_backoff_reservation(&ticket, &validate_list);
 fail_unref:
 	if (vgdev->has_virgl_3d) {
 		virtio_gpu_unref_list(&validate_list);
@@ -374,6 +441,12 @@ static int virtio_gpu_transfer_from_host_ioctl(struct drm_device *dev,
 		goto out_unres;
 
 	convert_to_hw_box(&box, &args->box);
+
+	fence = virtio_gpu_fence_alloc(vgdev);
+	if (!fence) {
+		ret = -ENOMEM;
+		goto out_unres;
+	}
 	virtio_gpu_cmd_transfer_from_host_3d
 		(vgdev, qobj->hw_res_handle,
 		 vfpriv->ctx_id, offset, args->level,
@@ -423,6 +496,11 @@ static int virtio_gpu_transfer_to_host_ioctl(struct drm_device *dev, void *data,
 			(vgdev, qobj, offset,
 			 box.w, box.h, box.x, box.y, NULL);
 	} else {
+		fence = virtio_gpu_fence_alloc(vgdev);
+		if (!fence) {
+			ret = -ENOMEM;
+			goto out_unres;
+		}
 		virtio_gpu_cmd_transfer_to_host_3d
 			(vgdev, qobj,
 			 vfpriv ? vfpriv->ctx_id : 0, offset,

drivers/gpu/drm/virtio/virtgpu_kms.c

@@ -55,10 +55,11 @@ static void virtio_gpu_config_changed_work_func(struct work_struct *work)
 static int virtio_gpu_context_create(struct virtio_gpu_device *vgdev,
 				      uint32_t nlen, const char *name)
 {
-	int handle = ida_alloc_min(&vgdev->ctx_id_ida, 1, GFP_KERNEL);
+	int handle = ida_alloc(&vgdev->ctx_id_ida, GFP_KERNEL);
 
 	if (handle < 0)
 		return handle;
+	handle += 1;
 	virtio_gpu_cmd_context_create(vgdev, handle, nlen, name);
 	return handle;
 }
@@ -67,7 +68,7 @@ static void virtio_gpu_context_destroy(struct virtio_gpu_device *vgdev,
 				      uint32_t ctx_id)
 {
 	virtio_gpu_cmd_context_destroy(vgdev, ctx_id);
-	ida_free(&vgdev->ctx_id_ida, ctx_id);
+	ida_free(&vgdev->ctx_id_ida, ctx_id - 1);
 }
 
 static void virtio_gpu_init_vq(struct virtio_gpu_queue *vgvq,
@@ -266,8 +267,10 @@ int virtio_gpu_driver_open(struct drm_device *dev, struct drm_file *file)
 
 	get_task_comm(dbgname, current);
 	id = virtio_gpu_context_create(vgdev, strlen(dbgname), dbgname);
-	if (id < 0)
+	if (id < 0) {
+		kfree(vfpriv);
 		return id;
+	}
 
 	vfpriv->ctx_id = id;
 	file->driver_priv = vfpriv;

drivers/gpu/drm/virtio/virtgpu_object.c

@@ -25,16 +25,21 @@
 
 #include "virtgpu_drv.h"
 
-static void virtio_gpu_resource_id_get(struct virtio_gpu_device *vgdev,
+static int virtio_gpu_resource_id_get(struct virtio_gpu_device *vgdev,
 				       uint32_t *resid)
 {
-	int handle = ida_alloc_min(&vgdev->resource_ida, 1, GFP_KERNEL);
-	*resid = handle;
+	int handle = ida_alloc(&vgdev->resource_ida, GFP_KERNEL);
+
+	if (handle < 0)
+		return handle;
+
+	*resid = handle + 1;
+	return 0;
 }
 
 static void virtio_gpu_resource_id_put(struct virtio_gpu_device *vgdev, uint32_t id)
 {
-	ida_free(&vgdev->resource_ida, id);
+	ida_free(&vgdev->resource_ida, id - 1);
 }
 
 static void virtio_gpu_ttm_bo_destroy(struct ttm_buffer_object *tbo)
@@ -94,7 +99,11 @@ int virtio_gpu_object_create(struct virtio_gpu_device *vgdev,
 	bo = kzalloc(sizeof(struct virtio_gpu_object), GFP_KERNEL);
 	if (bo == NULL)
 		return -ENOMEM;
-	virtio_gpu_resource_id_get(vgdev, &bo->hw_res_handle);
+	ret = virtio_gpu_resource_id_get(vgdev, &bo->hw_res_handle);
+	if (ret < 0) {
+		kfree(bo);
+		return ret;
+	}
 	size = roundup(size, PAGE_SIZE);
 	ret = drm_gem_object_init(vgdev->ddev, &bo->gem_base, size);
 	if (ret != 0) {

drivers/gpu/drm/virtio/virtgpu_plane.c

@@ -137,6 +137,41 @@ static void virtio_gpu_primary_plane_update(struct drm_plane *plane,
 				      plane->state->src_h >> 16);
 }
 
+static int virtio_gpu_cursor_prepare_fb(struct drm_plane *plane,
+					struct drm_plane_state *new_state)
+{
+	struct drm_device *dev = plane->dev;
+	struct virtio_gpu_device *vgdev = dev->dev_private;
+	struct virtio_gpu_framebuffer *vgfb;
+	struct virtio_gpu_object *bo;
+
+	if (!new_state->fb)
+		return 0;
+
+	vgfb = to_virtio_gpu_framebuffer(new_state->fb);
+	bo = gem_to_virtio_gpu_obj(vgfb->base.obj[0]);
+	if (bo && bo->dumb && (plane->state->fb != new_state->fb)) {
+		vgfb->fence = virtio_gpu_fence_alloc(vgdev);
+		if (!vgfb->fence)
+			return -ENOMEM;
+	}
+
+	return 0;
+}
+
+static void virtio_gpu_cursor_cleanup_fb(struct drm_plane *plane,
+					 struct drm_plane_state *old_state)
+{
+	struct virtio_gpu_framebuffer *vgfb;
+
+	if (!plane->state->fb)
+		return;
+
+	vgfb = to_virtio_gpu_framebuffer(plane->state->fb);
+	if (vgfb->fence)
+		virtio_gpu_fence_cleanup(vgfb->fence);
+}
+
 static void virtio_gpu_cursor_plane_update(struct drm_plane *plane,
 					   struct drm_plane_state *old_state)
 {
@@ -144,7 +179,6 @@ static void virtio_gpu_cursor_plane_update(struct drm_plane *plane,
 	struct virtio_gpu_device *vgdev = dev->dev_private;
 	struct virtio_gpu_output *output = NULL;
 	struct virtio_gpu_framebuffer *vgfb;
-	struct virtio_gpu_fence *fence = NULL;
 	struct virtio_gpu_object *bo = NULL;
 	uint32_t handle;
 	int ret = 0;
@@ -170,13 +204,13 @@ static void virtio_gpu_cursor_plane_update(struct drm_plane *plane,
 			(vgdev, bo, 0,
 			 cpu_to_le32(plane->state->crtc_w),
 			 cpu_to_le32(plane->state->crtc_h),
-			 0, 0, &fence);
+			 0, 0, &vgfb->fence);
 		ret = virtio_gpu_object_reserve(bo, false);
 		if (!ret) {
 			reservation_object_add_excl_fence(bo->tbo.resv,
-							  &fence->f);
-			dma_fence_put(&fence->f);
-			fence = NULL;
+							  &vgfb->fence->f);
+			dma_fence_put(&vgfb->fence->f);
+			vgfb->fence = NULL;
 			virtio_gpu_object_unreserve(bo);
 			virtio_gpu_object_wait(bo, false);
 		}
@@ -218,6 +252,8 @@ static const struct drm_plane_helper_funcs virtio_gpu_primary_helper_funcs = {
 };
 
 static const struct drm_plane_helper_funcs virtio_gpu_cursor_helper_funcs = {
+	.prepare_fb		= virtio_gpu_cursor_prepare_fb,
+	.cleanup_fb		= virtio_gpu_cursor_cleanup_fb,
 	.atomic_check		= virtio_gpu_plane_atomic_check,
 	.atomic_update		= virtio_gpu_cursor_plane_update,
 };

drivers/gpu/drm/virtio/virtgpu_vq.c

@@ -896,9 +896,9 @@ void virtio_gpu_object_detach(struct virtio_gpu_device *vgdev,
 			      struct virtio_gpu_object *obj)
 {
 	bool use_dma_api = !virtio_has_iommu_quirk(vgdev->vdev);
-	struct virtio_gpu_fence *fence;
 
 	if (use_dma_api && obj->mapped) {
+		struct virtio_gpu_fence *fence = virtio_gpu_fence_alloc(vgdev);
 		/* detach backing and wait for the host process it ... */
 		virtio_gpu_cmd_resource_inval_backing(vgdev, obj->hw_res_handle, &fence);
 		dma_fence_wait(&fence->f, true);