Merge tag 'drm-misc-next-2021-06-01' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for 5.14:

UAPI Changes:

 * Use DRM driver names for fbdev

Cross-subsystem Changes:

Core Changes:

 * Fix leaked DMA handles

 * Improve documentation around DRM_CLIENT_CAP_*

 * Cleanups

 * dp_mst: Use kHz as link-rate unit during init

 * fourcc: Remove drm_gem_format_name() and drm_format_name_buf

 * gem-cma: Fix mmap for buffers with write combining

 * ttm: Don't override pre-set vm_ops; ttm_bo_mmap() removal and cleanups

Driver Changes:

 * drm/amdgpu: Fix hot unplug during suspend; Implement mmap as GEM object
   function; Use %p4cc format-string modifier; Cleanups

 * drm/bridge: Cdns: Fix PM reference leak, Cleanups; Lt8912b: Fix Coccinelle
   warnings; Fix Kconfig dependencies; Fixes and cleanups

 * drm/hisilicon/kirin: Cleanups

 * drm/nouveau: Implement mmap as GEM object function

 * drm/radeon: Implement mmap as GEM object function

 * drm/rockchip: Remove generic drivers during init; Add scaling for RK3036
   win1; Fix missing registers for RK3066 and 3188; Add alpha support for
   RK3036, RK3066, RK3126 and RK3188; Fixes and cleanups

 * drm/simpledrm: Use %p4cc: format-string modifier

 * drm/vmwgfx: Cleanups

 * fbdev/matrox: Use modern module_init()

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

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/YLZOKiYE6XFmE/MH@linux-uq9g.fritz.box

1 files changed, 0 insertions, 68 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index e039f5b8bc87..80437b6ba5f3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -166,25 +166,6 @@ static void amdgpu_evict_flags(struct ttm_buffer_object *bo,
 }
 
 /**
- * amdgpu_verify_access - Verify access for a mmap call
- *
- * @bo:	The buffer object to map
- * @filp: The file pointer from the process performing the mmap
- *
- * This is called by ttm_bo_mmap() to verify whether a process
- * has the right to mmap a BO to their process space.
- */
-static int amdgpu_verify_access(struct ttm_buffer_object *bo, struct file *filp)
-{
-	struct amdgpu_bo *abo = ttm_to_amdgpu_bo(bo);
-
-	if (amdgpu_ttm_tt_get_usermm(bo->ttm))
-		return -EPERM;
-	return drm_vma_node_verify_access(&abo->tbo.base.vma_node,
-					  filp->private_data);
-}
-
-/**
  * amdgpu_ttm_map_buffer - Map memory into the GART windows
  * @bo: buffer object to map
  * @mem: memory object to map
@@ -1475,7 +1456,6 @@ static struct ttm_device_funcs amdgpu_bo_driver = {
 	.eviction_valuable = amdgpu_ttm_bo_eviction_valuable,
 	.evict_flags = &amdgpu_evict_flags,
 	.move = &amdgpu_bo_move,
-	.verify_access = &amdgpu_verify_access,
 	.delete_mem_notify = &amdgpu_bo_delete_mem_notify,
 	.release_notify = &amdgpu_bo_release_notify,
 	.io_mem_reserve = &amdgpu_ttm_io_mem_reserve,
@@ -1785,10 +1765,6 @@ void amdgpu_ttm_fini(struct amdgpu_device *adev)
 	amdgpu_bo_free_kernel(&adev->mman.discovery_memory, NULL, NULL);
 	amdgpu_ttm_fw_reserve_vram_fini(adev);
 
-	if (adev->mman.aper_base_kaddr)
-		iounmap(adev->mman.aper_base_kaddr);
-	adev->mman.aper_base_kaddr = NULL;
-
 	amdgpu_vram_mgr_fini(adev);
 	amdgpu_gtt_mgr_fini(adev);
 	ttm_range_man_fini(&adev->mman.bdev, AMDGPU_PL_GDS);
@@ -1847,50 +1823,6 @@ void amdgpu_ttm_set_buffer_funcs_status(struct amdgpu_device *adev, bool enable)
 	adev->mman.buffer_funcs_enabled = enable;
 }
 
-static vm_fault_t amdgpu_ttm_fault(struct vm_fault *vmf)
-{
-	struct ttm_buffer_object *bo = vmf->vma->vm_private_data;
-	vm_fault_t ret;
-
-	ret = ttm_bo_vm_reserve(bo, vmf);
-	if (ret)
-		return ret;
-
-	ret = amdgpu_bo_fault_reserve_notify(bo);
-	if (ret)
-		goto unlock;
-
-	ret = ttm_bo_vm_fault_reserved(vmf, vmf->vma->vm_page_prot,
-				       TTM_BO_VM_NUM_PREFAULT, 1);
-	if (ret == VM_FAULT_RETRY && !(vmf->flags & FAULT_FLAG_RETRY_NOWAIT))
-		return ret;
-
-unlock:
-	dma_resv_unlock(bo->base.resv);
-	return ret;
-}
-
-static const struct vm_operations_struct amdgpu_ttm_vm_ops = {
-	.fault = amdgpu_ttm_fault,
-	.open = ttm_bo_vm_open,
-	.close = ttm_bo_vm_close,
-	.access = ttm_bo_vm_access
-};
-
-int amdgpu_mmap(struct file *filp, struct vm_area_struct *vma)
-{
-	struct drm_file *file_priv = filp->private_data;
-	struct amdgpu_device *adev = drm_to_adev(file_priv->minor->dev);
-	int r;
-
-	r = ttm_bo_mmap(filp, vma, &adev->mman.bdev);
-	if (unlikely(r != 0))
-		return r;
-
-	vma->vm_ops = &amdgpu_ttm_vm_ops;
-	return 0;
-}
-
 int amdgpu_copy_buffer(struct amdgpu_ring *ring, uint64_t src_offset,
 		       uint64_t dst_offset, uint32_t byte_count,
 		       struct dma_resv *resv,