diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.14.71/5335-amdgpu-fix-multi-process-hang-issue.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.14.71/5335-amdgpu-fix-multi-process-hang-issue.patch | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/5335-amdgpu-fix-multi-process-hang-issue.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/5335-amdgpu-fix-multi-process-hang-issue.patch new file mode 100644 index 00000000..422c9ff1 --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/5335-amdgpu-fix-multi-process-hang-issue.patch @@ -0,0 +1,56 @@ +From 0230676eb4da2e340777783362fcc5d2cd38fc84 Mon Sep 17 00:00:00 2001 +From: Emily Deng <Emily.Deng@amd.com> +Date: Wed, 22 Aug 2018 20:18:25 +0800 +Subject: [PATCH 5335/5725] amdgpu: fix multi-process hang issue +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +SWDEV-146499: hang during multi vulkan process testing + +cause: +the second frame's PREAMBLE_IB have clear-state +and LOAD actions, those actions ruin the pipeline +that is still doing process in the previous frame's +work-load IB. + +fix: +need insert pipeline sync if have context switch for +SRIOV (because only SRIOV will report PREEMPTION flag +to UMD) + +Signed-off-by: Monk Liu <Monk.Liu@amd.com> +Signed-off-by: Emily Deng <Emily.Deng@amd.com> +Reviewed-by: Christian König <christian.koenig@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +Signed-off-by: Raveendra Talabattula <raveendra.talabattula@amd.com> +--- + drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c | 3 ++- + 1 file changed, 2 insertions(+), 1 deletion(-) + +diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c +index a38daa3..1d86c3b 100644 +--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c ++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c +@@ -171,8 +171,10 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs, + return r; + } + ++ need_ctx_switch = ring->current_ctx != fence_ctx; + if (ring->funcs->emit_pipeline_sync && job && + ((tmp = amdgpu_sync_get_fence(&job->sched_sync, NULL)) || ++ (amdgpu_sriov_vf(adev) && need_ctx_switch) || + amdgpu_vm_need_pipeline_sync(ring, job))) { + need_pipe_sync = true; + +@@ -206,7 +208,6 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs, + amdgpu_ring_emit_hdp_flush(ring); + + skip_preamble = ring->current_ctx == fence_ctx; +- need_ctx_switch = ring->current_ctx != fence_ctx; + if (job && ring->funcs->emit_cntxcntl) { + if (need_ctx_switch) + status |= AMDGPU_HAVE_CTX_SWITCH; +-- +2.7.4 + |