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Commit 93704980 authored by Christian König's avatar Christian König Committed by Greg Kroah-Hartman
Browse files

drm/amdgpu: always register an MMU notifier for userptr 



commit b39df63b16b64a3af42695acb9bc567aad144776 upstream.

Since switching to HMM we always need that because we no longer grab
references to the pages.

Signed-off-by: default avatarChristian König <christian.koenig@amd.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Acked-by: default avatarFelix Kuehling <Felix.Kuehling@amd.com>
CC: stable@vger.kernel.org
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent d0075f49

drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c

+3 −5
Original line number Diff line number Diff line
@@ -328,11 +328,9 @@ int amdgpu_gem_userptr_ioctl(struct drm_device *dev, void *data, 
	if (r)

		goto release_object;



	if (args->flags & AMDGPU_GEM_USERPTR_REGISTER) {

	r = amdgpu_mn_register(bo, args->addr);

	if (r)

		goto release_object;

	}



	if (args->flags & AMDGPU_GEM_USERPTR_VALIDATE) {

		r = amdgpu_ttm_tt_get_user_pages(bo->tbo.ttm,