Commit 2c1e9bca authored Jul 25, 2018 by Paul Menzel Committed by Alex Deucher Aug 27, 2018

drm/amdgpu: Do not evict VRAM on APUs with disabled HIBERNATE

Improve commit d796d844 (drm/radeon/kms: make hibernate work on IGPs) to
only migrate VRAM objects if the Linux kernel is actually built with
support for hibernation (suspend to disk).

The better solution is to get the information, if this is suspend or
hibernate, from `amdgpu_device_suspend()`, but that’s more involved, so
apply the simple solution first.

Link: https://bugs.freedesktop.org/show_bug.cgi?id=107277


Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

parent 28a16027

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

+3 −1

Original line number	Diff line number	Diff line
		@@ -1019,10 +1019,12 @@ int amdgpu_bo_unpin(struct amdgpu_bo *bo)
		int amdgpu_bo_evict_vram(struct amdgpu_device *adev)
		{
		/* late 2.6.33 fix IGP hibernate - we need pm ops to do this correct */
		if (0 && (adev->flags & AMD_IS_APU)) {
		#ifndef CONFIG_HIBERNATION
		if (adev->flags & AMD_IS_APU) {
		/* Useless to evict on IGP chips */
		return 0;
		}
		#endif
		return ttm_bo_evict_mm(&adev->mman.bdev, TTM_PL_VRAM);
		}