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From d5aeec65a69b4be760b53124c9027a7786d92203 Mon Sep 17 00:00:00 2001
From: Chunming Zhou <david1.zhou@amd.com>
Date: Tue, 24 Apr 2018 13:54:10 +0800
Subject: [PATCH 4370/5725] drm/amdgpu: invalidate parent bo when shadow bo was
invalidated
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Shadow BO is located on GTT and its parent (PT and PD) BO could located on VRAM.
In some case, the BO on GTT could be evicted but the parent did not. This may
cause the shadow BO not be put in the evict list and could not be invalidate
correctly.
v2: suggested by Christian
Change-Id: Iad10d9a3031fa2b243879b9e58ee4d8c527eb433
Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Reported-by: Shaoyun Liu <Shaoyun.Liu@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index dd84ed4..336abd4 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -2282,6 +2282,10 @@ void amdgpu_vm_bo_invalidate(struct amdgpu_device *adev,
{
struct amdgpu_vm_bo_base *bo_base;
+ /* shadow bo doesn't have bo base, its validation needs its parent */
+ if (bo->parent && bo->parent->shadow == bo)
+ bo = bo->parent;
+
list_for_each_entry(bo_base, &bo->va, bo_list) {
struct amdgpu_vm *vm = bo_base->vm;
--
2.7.4
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