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From: Alex Deucher <alexdeucher@gmail.com>
To: dri-devel@lists.freedesktop.org
Subject: [PATCH 06/14] drm/amdgpu: add pipeline sync for compute job
Date: Wed,  4 May 2016 14:26:47 -0400	[thread overview]
Message-ID: <1462386415-25600-6-git-send-email-alexander.deucher@amd.com> (raw)
In-Reply-To: <1462386415-25600-1-git-send-email-alexander.deucher@amd.com>

From: Chunming Zhou <David1.Zhou@amd.com>

hardware ring is async processed, the job is executed in parallel.
In some case, this will result vm fault, like jobs with different vmids.

This works around a CPC hw issue which will eventually be fixed in fw.

Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Monk Liu <monk.liu@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 692d0d02..62ce725 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -300,7 +300,8 @@ int amdgpu_vm_flush(struct amdgpu_ring *ring,
 	int r;
 
 	if (ring->funcs->emit_pipeline_sync && (
-	    pd_addr != AMDGPU_VM_NO_FLUSH || gds_switch_needed))
+	    pd_addr != AMDGPU_VM_NO_FLUSH || gds_switch_needed ||
+		    ring->type == AMDGPU_RING_TYPE_COMPUTE))
 		amdgpu_ring_emit_pipeline_sync(ring);
 
 	if (ring->funcs->emit_vm_flush &&
-- 
2.5.5

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  parent reply	other threads:[~2016-05-04 18:27 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-05-04 18:26 [PATCH 01/14] drm/amdgpu: fix wrong release of vmid owner Alex Deucher
2016-05-04 18:26 ` [PATCH 02/14] drm/amdgpu: add client id for every vm Alex Deucher
2016-05-04 18:26 ` [PATCH 03/14] drm/amdgpu: make vmid owner be client_id Alex Deucher
2016-05-04 18:26 ` [PATCH 04/14] drm/amdgpu: keep vm in job instead of ib (v2) Alex Deucher
2016-05-04 18:26 ` [PATCH 05/14] drm/amdgpu: use fence_context to judge ctx switch Alex Deucher
2016-05-04 18:26 ` Alex Deucher [this message]
2016-05-04 18:26 ` [PATCH 07/14] drm/amd/amdgpu: Enable CG for UVD6 on Carrizo Alex Deucher
2016-05-04 18:26 ` [PATCH 08/14] drm/amdgpu: hdp flush&inval should always do Alex Deucher
2016-05-04 18:26 ` [PATCH 09/14] drm/amdgpu: two minor 80 char fixes Alex Deucher
2016-05-04 18:26 ` [PATCH 10/14] drm/amdgpu: make the VMID owner always 64bit Alex Deucher
2016-05-04 18:26 ` [PATCH 11/14] drm/amdgpu: remove owner cleanup v2 Alex Deucher
2016-05-04 18:26 ` [PATCH 12/14] drm/amdgpu: remove define for reserved client ID Alex Deucher
2016-05-04 18:26 ` [PATCH 13/14] drm/amd: cleanup remaining spaces and tabs v2 Alex Deucher
2016-05-04 18:26 ` [PATCH 14/14] drm/amdgpu: fetch cu_info once at init Alex Deucher
2016-05-09  8:17 ` [PATCH 01/14] drm/amdgpu: fix wrong release of vmid owner Daniel Vetter
2016-05-10  5:05   ` Dave Airlie
2016-05-10  8:21     ` Christian König
2016-05-11  7:46       ` Daniel Vetter
2016-05-11  7:48         ` Dave Airlie

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