Commit df768a97 authored by Arunpravin Paneer Selvam's avatar Arunpravin Paneer Selvam Committed by Alex Deucher
Browse files

drm/amdgpu: Fix for BO move issue 



A user reported a bug on CAPE VERDE system where uvd_v3_1
IP component failed to initialize as there is an issue with
BO move code from one memory to other.

In function amdgpu_mem_visible() called by amdgpu_bo_move(),
when there are no blocks to compare or if we have a single
block then break the loop.

Fixes: 312b4dc1 ("drm/amdgpu: Fix VRAM BO swap issue")
Signed-off-by: default avatarArunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent c4dfad81

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

+3 −0
Original line number Diff line number Diff line
@@ -439,6 +439,9 @@ static bool amdgpu_mem_visible(struct amdgpu_device *adev, 
	while (cursor.remaining) {

		amdgpu_res_next(&cursor, cursor.size);



		if (!cursor.remaining)

			break;



		/* ttm_resource_ioremap only supports contiguous memory */

		if (end != cursor.start)

			return false;