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From cbb6ae4260d94fce545ea582a0de7e0b084756f9 Mon Sep 17 00:00:00 2001
From: Paul Menzel <pmenzel@molgen.mpg.de>
Date: Wed, 25 Jul 2018 12:54:19 +0200
Subject: [PATCH 5175/5725] drm/amdgpu: Do not evict VRAM on APUs with disabled
HIBERNATE
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
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>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index 4c26b94..6f86f44 100755
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -1060,10 +1060,12 @@ 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);
}
--
2.7.4
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