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From e167a00f9ab0c0fbbc2e9434f58a3407ee860f3f Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Thu, 28 Apr 2016 17:03:19 -0400
Subject: [PATCH 1066/1110] drm/amdgpu: check if ring emit_vm_flush exists in
vm flush
No vm flush on engines that don't support VM.
bug:
https://bugs.freedesktop.org/show_bug.cgi?id=95195
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Kalyan Alle <kalyan.alle@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 6399429..fd691d0 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -311,7 +311,8 @@ int amdgpu_vm_flush(struct amdgpu_ring *ring,
ring->type == AMDGPU_RING_TYPE_COMPUTE))
amdgpu_ring_emit_pipeline_sync(ring);
- if (pd_addr != AMDGPU_VM_NO_FLUSH) {
+ if (ring->funcs->emit_vm_flush &&
+ pd_addr != AMDGPU_VM_NO_FLUSH) {
struct fence *fence;
trace_amdgpu_vm_flush(pd_addr, ring->idx, vm_id);
--
2.7.4
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