Merge tag 'drm-misc-next-2020-10-27' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for 5.11:

UAPI Changes:

  - doc: rules for EBUSY on non-blocking commits; requirements for fourcc
    modifiers; on parsing EDID
  - fbdev/sbuslib: Remove unused FBIOSCURSOR32
  - fourcc: deprecate DRM_FORMAT_MOD_NONE
  - virtio: Support blob resources for memory allocations; Expose host-visible
    and cross-device features

Cross-subsystem Changes:

  - devicetree: Add vendor Prefix for Yes Optoelectronics, Shanghai Top Display
    Optoelectronics
  - dma-buf: Add struct dma_buf_map that stores DMA pointer and I/O-memory flag;
    dma_buf_vmap()/vunmap() return address in dma_buf_map; Use struct_size() macro

Core Changes:

  - atomic: pass full state to CRTC atomic enable/disable; warn for EBUSY during
    non-blocking commits
  - dp: Prepare for DP 2.0 DPCD
  - dp_mst: Receive extended DPCD caps
  - dma-buf: Documentation
  - doc: Format modifiers; dma-buf-map; Cleanups
  - fbdev: Don't use compat_alloc_user_space(); mark as orphaned
  - fb-helper: Take lock in drm_fb_helper_restore_work_fb()
  - gem: Convert implementation and drivers to GEM object functions, remove
    GEM callbacks from struct drm_driver (expect gem_prime_mmap)
  - panel: Cleanups
  - pci: Add legacy infix to drm_irq_by_busid()
  - sched: Avoid infinite waits in drm_sched_entity_destroy()
  - switcheroo: Cleanups
  - ttm: Remove AGP support; Don't modify caching during swapout; Major
    refactoring of the implementation and API that affects all depending
    drivers; Add ttm_bo_wait_ctx(); Add ttm_bo_pin()/unpin() in favor of
    TTM_PL_FLAG_NO_EVICT; Remove ttm_bo_create(); Remove fault_reserve_notify()
    callback; Push move() implementation into drivers; Remove TTM_PAGE_FLAG_WRITE;
    Replace caching flags with init-time cache setting; Push ttm_tt_bind() into
    drivers; Replace move_notify() with delete_mem_notify(); No overlapping memcpy();
    no more ttm_set_populated()
  - vram-helper: Fix BO top-down placement; TTM-related changes; Init GEM
    object functions with defaults; Default placement in system memory; Cleanups

Driver Changes:

  - amdgpu: Use GEM object functions
  - armada: Use GEM object functions
  - aspeed: Configure output via sysfs; Init struct drm_driver with
  - ast: Reload LUT after FB format changes
  - bridge: Add driver and DT bindings for anx7625; Cleanups
  - bridge/dw-hdmi: Constify ops
  - bridge/ti-sn65dsi86: Add retries for link training
  - bridge/lvds-codec: Add support for regulator
  - bridge/tc358768: Restore connector support DRM_GEM_CMA_DRIVEROPS; Cleanups
  - display/ti,j721e-dss: Add DT properies assigned-clocks, assigned-clocks-parent and
    dma-coherent
  - display/ti,am65s-dss: Add DT properies assigned-clocks, assigned-clocks-parent and
    dma-coherent
  - etnaviv: Use GEM object functions
  - exynos: Use GEM object functions
  - fbdev: Cleanups and compiler fixes throughout framebuffer drivers
  - fbdev/cirrusfb: Avoid division by 0
  - gma500: Use GEM object functions; Fix double-free of connector; Cleanups
  - hisilicon/hibmc: I2C-based DDC support; Use to_hibmc_drm_device(); Cleanups
  - i915: Use GEM object functions
  - imx/dcss: Init driver with DRM_GEM_CMA_DRIVER_OPS; Cleanups
  - ingenic: Reset pixel clock when parent clock changes; support reserved
    memory; Alloc F0 and F1 DMA channels at once; Support different pixel formats;
    Revert support for cached mmap buffers
    on F0/F1; support 30-bit/24-bit/8-bit-palette modes
  - komeda: Use DEFINE_SHOW_ATTRIBUTE
  - mcde: Detect platform_get_irq() errors
  - mediatek: Use GEM object functions
  - msm: Use GEM object functions
  - nouveau: Cleanups; TTM-related changes; Use GEM object functions
  - omapdrm: Use GEM object functions
  - panel: Add driver and DT bindings for Novatak nt36672a; Add driver and DT
    bindings for YTC700TLAG-05-201C; Add driver and DT bindings for TDO TL070WSH30;
    Cleanups
  - panel/mantix: Fix reset; Fix deref of NULL pointer in mantix_get_modes()
  - panel/otm8009a: Allow non-continuous dsi clock; Cleanups
  - panel/rm68200: Allow non-continuous dsi clock; Fix mode to 50 FPS
  - panfrost: Fix job timeout handling; Cleanups
  - pl111: Use GEM object functions
  - qxl: Cleanups; TTM-related changes; Pin new BOs with ttm_bo_init_reserved()
  - radeon: Cleanups; TTM-related changes; Use GEM object functions
  - rockchip: Use GEM object functions
  - shmobile: Cleanups
  - tegra: Use GEM object functions
  - tidss: Set drm_plane_helper_funcs.prepare_fb
  - tilcdc: Don't keep vblank interrupt enabled all the time
  - tve200: Detect platform_get_irq() errors
  - vc4: Use GEM object functions; Only register components once DSI is attached;
    Add Maxime as maintainer
  - vgem: Use GEM object functions
  - via: Simplify critical section in via_mem_alloc()
  - virtgpu: Use GEM object functions
  - virtio: Implement blob resources, host-visible and cross-device features;
    Support mapping of host-allocated resources; Use UUID APi; Cleanups
  - vkms: Use GEM object functions; Switch to SHMEM
  - vmwgfx: TTM-related changes; Inline ttm_bo_swapout_all()
  - xen: Use GEM object functions
  - xlnx: Use GEM object functions

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

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20201027100936.GA4858@linux-uq9g

1 files changed, 17 insertions, 36 deletions

diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
index 69c2c079d803..d586068f5509 100644
--- a/drivers/gpu/drm/drm_gem.c
+++ b/drivers/gpu/drm/drm_gem.c
@@ -247,12 +247,9 @@ drm_gem_object_release_handle(int id, void *ptr, void *data)
 {
 	struct drm_file *file_priv = data;
 	struct drm_gem_object *obj = ptr;
-	struct drm_device *dev = obj->dev;
 
-	if (obj->funcs && obj->funcs->close)
+	if (obj->funcs->close)
 		obj->funcs->close(obj, file_priv);
-	else if (dev->driver->gem_close_object)
-		dev->driver->gem_close_object(obj, file_priv);
 
 	drm_gem_remove_prime_handles(obj, file_priv);
 	drm_vma_node_revoke(&obj->vma_node, file_priv);
@@ -403,14 +400,10 @@ drm_gem_handle_create_tail(struct drm_file *file_priv,
 	if (ret)
 		goto err_remove;
 
-	if (obj->funcs && obj->funcs->open) {
+	if (obj->funcs->open) {
 		ret = obj->funcs->open(obj, file_priv);
 		if (ret)
 			goto err_revoke;
-	} else if (dev->driver->gem_open_object) {
-		ret = dev->driver->gem_open_object(obj, file_priv);
-		if (ret)
-			goto err_revoke;
 	}
 
 	*handlep = handle;
@@ -982,12 +975,11 @@ drm_gem_object_free(struct kref *kref)
 {
 	struct drm_gem_object *obj =
 		container_of(kref, struct drm_gem_object, refcount);
-	struct drm_device *dev = obj->dev;
 
-	if (obj->funcs)
-		obj->funcs->free(obj);
-	else if (dev->driver->gem_free_object_unlocked)
-		dev->driver->gem_free_object_unlocked(obj);
+	if (WARN_ON(!obj->funcs->free))
+		return;
+
+	obj->funcs->free(obj);
 }
 EXPORT_SYMBOL(drm_gem_object_free);
 
@@ -1049,9 +1041,9 @@ EXPORT_SYMBOL(drm_gem_vm_close);
  * @obj_size: the object size to be mapped, in bytes
  * @vma: VMA for the area to be mapped
  *
- * Set up the VMA to prepare mapping of the GEM object using the gem_vm_ops
- * provided by the driver. Depending on their requirements, drivers can either
- * provide a fault handler in their gem_vm_ops (in which case any accesses to
+ * Set up the VMA to prepare mapping of the GEM object using the GEM object's
+ * vm_ops. Depending on their requirements, GEM objects can either
+ * provide a fault handler in their vm_ops (in which case any accesses to
  * the object will be trapped, to perform migration, GTT binding, surface
  * register allocation, or performance monitoring), or mmap the buffer memory
  * synchronously after calling drm_gem_mmap_obj.
@@ -1065,12 +1057,11 @@ EXPORT_SYMBOL(drm_gem_vm_close);
  * callers must verify access restrictions before calling this helper.
  *
  * Return 0 or success or -EINVAL if the object size is smaller than the VMA
- * size, or if no gem_vm_ops are provided.
+ * size, or if no vm_ops are provided.
  */
 int drm_gem_mmap_obj(struct drm_gem_object *obj, unsigned long obj_size,
 		     struct vm_area_struct *vma)
 {
-	struct drm_device *dev = obj->dev;
 	int ret;
 
 	/* Check for valid size. */
@@ -1087,7 +1078,7 @@ int drm_gem_mmap_obj(struct drm_gem_object *obj, unsigned long obj_size,
 
 	vma->vm_private_data = obj;
 
-	if (obj->funcs && obj->funcs->mmap) {
+	if (obj->funcs->mmap) {
 		ret = obj->funcs->mmap(obj, vma);
 		if (ret) {
 			drm_gem_object_put(obj);
@@ -1095,10 +1086,8 @@ int drm_gem_mmap_obj(struct drm_gem_object *obj, unsigned long obj_size,
 		}
 		WARN_ON(!(vma->vm_flags & VM_DONTEXPAND));
 	} else {
-		if (obj->funcs && obj->funcs->vm_ops)
+		if (obj->funcs->vm_ops)
 			vma->vm_ops = obj->funcs->vm_ops;
-		else if (dev->driver->gem_vm_ops)
-			vma->vm_ops = dev->driver->gem_vm_ops;
 		else {
 			drm_gem_object_put(obj);
 			return -EINVAL;
@@ -1198,36 +1187,30 @@ void drm_gem_print_info(struct drm_printer *p, unsigned int indent,
 	drm_printf_indent(p, indent, "imported=%s\n",
 			  obj->import_attach ? "yes" : "no");
 
-	if (obj->funcs && obj->funcs->print_info)
+	if (obj->funcs->print_info)
 		obj->funcs->print_info(p, indent, obj);
 }
 
 int drm_gem_pin(struct drm_gem_object *obj)
 {
-	if (obj->funcs && obj->funcs->pin)
+	if (obj->funcs->pin)
 		return obj->funcs->pin(obj);
-	else if (obj->dev->driver->gem_prime_pin)
-		return obj->dev->driver->gem_prime_pin(obj);
 	else
 		return 0;
 }
 
 void drm_gem_unpin(struct drm_gem_object *obj)
 {
-	if (obj->funcs && obj->funcs->unpin)
+	if (obj->funcs->unpin)
 		obj->funcs->unpin(obj);
-	else if (obj->dev->driver->gem_prime_unpin)
-		obj->dev->driver->gem_prime_unpin(obj);
 }
 
 void *drm_gem_vmap(struct drm_gem_object *obj)
 {
 	void *vaddr;
 
-	if (obj->funcs && obj->funcs->vmap)
+	if (obj->funcs->vmap)
 		vaddr = obj->funcs->vmap(obj);
-	else if (obj->dev->driver->gem_prime_vmap)
-		vaddr = obj->dev->driver->gem_prime_vmap(obj);
 	else
 		vaddr = ERR_PTR(-EOPNOTSUPP);
 
@@ -1242,10 +1225,8 @@ void drm_gem_vunmap(struct drm_gem_object *obj, void *vaddr)
 	if (!vaddr)
 		return;
 
-	if (obj->funcs && obj->funcs->vunmap)
+	if (obj->funcs->vunmap)
 		obj->funcs->vunmap(obj, vaddr);
-	else if (obj->dev->driver->gem_prime_vunmap)
-		obj->dev->driver->gem_prime_vunmap(obj, vaddr);
 }
 
 /**