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drm/radeon: 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).

Link: https://bugs.freedesktop.org/show_bug.cgi?id=100941
Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Paul Menzel 2018-07-31 18:48:41 +02:00 committed by Alex Deucher
parent 2c1e9bca44
commit d6257ab531
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/radeon/radeon_object.c
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@ -421,11 +421,13 @@ int radeon_bo_unpin(struct radeon_bo *bo)
int radeon_bo_evict_vram(struct radeon_device *rdev)
{
/* late 2.6.33 fix IGP hibernate - we need pm ops to do this correct */
if (0 && (rdev->flags & RADEON_IS_IGP)) {
#ifndef CONFIG_HIBERNATION
if (rdev->flags & RADEON_IS_IGP) {
if (rdev->mc.igp_sideport_enabled == false)
/* Useless to evict on IGP chips */
return 0;
}
#endif
return ttm_bo_evict_mm(&rdev->mman.bdev, TTM_PL_VRAM);
}