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Commit 0d16d299 authored by Christopher James Halse Rogers's avatar Christopher James Halse Rogers Committed by Alex Deucher
Browse files

drm/radeon: Maintain prime import/export refcount for BOs 



Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarChristopher James Halse Rogers <christopher.halse.rogers@canonical.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 803d89ad

drivers/gpu/drm/radeon/radeon.h

+1 −0
Original line number Diff line number Diff line
@@ -499,6 +499,7 @@ struct radeon_bo { 
	u32				tiling_flags;

	u32				pitch;

	int				surface_reg;

	unsigned			prime_shared_count;

	/* list of all virtual address to which this bo

	 * is associated to

	 */

drivers/gpu/drm/radeon/radeon_prime.c

+6 −0
Original line number Diff line number Diff line
@@ -77,6 +77,7 @@ struct drm_gem_object *radeon_gem_prime_import_sg_table(struct drm_device *dev, 
	list_add_tail(&bo->list, &rdev->gem.objects);

	mutex_unlock(&rdev->gem.mutex);



	bo->prime_shared_count = 1;

	return &bo->gem_base;

}
@@ -91,6 +92,9 @@ int radeon_gem_prime_pin(struct drm_gem_object *obj) 


	/* pin buffer into GTT */

	ret = radeon_bo_pin(bo, RADEON_GEM_DOMAIN_GTT, NULL);

	if (likely(ret == 0))

		bo->prime_shared_count++;



	radeon_bo_unreserve(bo);

	return ret;

}
@@ -105,6 +109,8 @@ void radeon_gem_prime_unpin(struct drm_gem_object *obj) 
		return;



	radeon_bo_unpin(bo);

	if (bo->prime_shared_count)

		bo->prime_shared_count--;

	radeon_bo_unreserve(bo);

}