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From e6d90ba86b33d2e0b4d1904ff45fa34c59e17c32 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Sun, 4 Feb 2018 19:36:52 +0100
Subject: [PATCH 3494/4131] drm/amdgpu: sync the VM PD/PT before clearing it
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Otherwise we might overwrite stuff which is still in use.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index eb5ccca..6c3036b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -329,6 +329,11 @@ static int amdgpu_vm_clear_bo(struct amdgpu_device *adev,
amdgpu_ring_pad_ib(ring, &job->ibs[0]);
WARN_ON(job->ibs[0].length_dw > 64);
+ r = amdgpu_sync_resv(adev, &job->sync, bo->tbo.resv,
+ AMDGPU_FENCE_OWNER_UNDEFINED, false);
+ if (r)
+ goto error_free;
+
r = amdgpu_job_submit(job, ring, &vm->entity,
AMDGPU_FENCE_OWNER_UNDEFINED, &fence);
if (r)
--
2.7.4
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