Am 25.07.2018 um 00:15 schrieb Paul Menzel:
From: Paul Menzel <pmen...@molgen.mpg.de>
Date: Wed, 18 Jul 2018 18:15:44 +0200
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=107277
Cc: sta...@vger.kernel.org
Signed-off-by: Paul Menzel <pmen...@molgen.mpg.de>
At least a step into the right direction.
Patch is Reviewed-by: Christian König <christian.koe...@amd.com>, but we
are also going to need one for amdgpu.
Christian.
---
drivers/gpu/drm/radeon/radeon_object.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/radeon/radeon_object.c
b/drivers/gpu/drm/radeon/radeon_object.c
index edbb4cd519fd..0cb5eb013a4f 100644
--- a/drivers/gpu/drm/radeon/radeon_object.c
+++ b/drivers/gpu/drm/radeon/radeon_object.c
@@ -422,11 +422,13 @@ 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);
}
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