Attachment 123329 Details for Bug 95195 – possible fix

[patch] possible fix

0001-drm-amdgpu-check-if-ring-emit_vm_flush-exists-in-vm-.patch (text/plain), 1.05 KB, created by Alex Deucher on 2016-04-28 21:06:36 UTC

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Creator: Alex Deucher

Created: 2016-04-28 21:06:36 UTC

Size: 1.05 KB

patch

obsolete

>From 9bb5cd4001413445675bf9385fcea15b8f4a7f1a 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] 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
>
>Signed-off-by: Alex Deucher <alexander.deucher@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 2c3d955..692d0d02 100644
>--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
>+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
>@@ -303,7 +303,8 @@ int amdgpu_vm_flush(struct amdgpu_ring *ring,
> 	    pd_addr != AMDGPU_VM_NO_FLUSH || gds_switch_needed))
> 		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);
>-- 
>2.5.5
>

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