From 941cf61c0326ba81d8ab8f1c1130462dd08d4623 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Mon, 2 Mar 2020 13:00:07 +0100
Subject: drm/amdgpu: stop evicting encrypted BOs to swap
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Git-commit: 218c0b7f183a88b3b2678fbca885a750dda2bff3
Patch-mainline: v5.8-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
Swapping out encrypted BOs doesn't work because they can't change
their physical location without going through a bounce copy.
As a workaround disable evicting encrypted BOs to the system
domain for now.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Tested-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 78d03cdc7338..95cae0faf046 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -1529,6 +1529,9 @@ static bool amdgpu_ttm_bo_eviction_valuable(struct ttm_buffer_object *bo,
switch (bo->mem.mem_type) {
case TTM_PL_TT:
+ if (amdgpu_bo_is_amdgpu_bo(bo) &&
+ amdgpu_bo_encrypted(ttm_to_amdgpu_bo(bo)))
+ return false;
return true;
case TTM_PL_VRAM:
--
2.28.0