From 4ff7d8ba4c80b8198bd4a0cc339373eb28540552 Mon Sep 17 00:00:00 2001 From: Nirmoy Das Date: Fri, 13 Mar 2020 15:26:54 +0100 Subject: [PATCH] drm/amdgpu: disable gpu_sched load balancer for vcn jobs MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit VCN HW doesn't support dynamic load balance on multiple instances for a context. This patch initializes VNC entities with only one drm_gpu_scheduler picked by drm_sched_pick_best(). Picking a drm_gpu_scheduler using drm_sched_pick_best() ensures that we do load balance among multiple contexts but not among multiple jobs in a context. Signed-off-by: Nirmoy Das Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c index 74c795a5e187..6ed36a2c5f73 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c @@ -121,12 +121,16 @@ static int amdgpu_ctx_init_entity(struct amdgpu_ctx *ctx, const u32 hw_ip, const num_scheds = 1; break; case AMDGPU_HW_IP_VCN_DEC: - scheds = adev->vcn.vcn_dec_sched; - num_scheds = adev->vcn.num_vcn_dec_sched; + sched = drm_sched_pick_best(adev->vcn.vcn_dec_sched, + adev->vcn.num_vcn_dec_sched); + scheds = &sched; + num_scheds = 1; break; case AMDGPU_HW_IP_VCN_ENC: - scheds = adev->vcn.vcn_enc_sched; - num_scheds = adev->vcn.num_vcn_enc_sched; + sched = drm_sched_pick_best(adev->vcn.vcn_enc_sched, + adev->vcn.num_vcn_enc_sched); + scheds = &sched; + num_scheds = 1; break; case AMDGPU_HW_IP_VCN_JPEG: scheds = adev->jpeg.jpeg_sched; -- 2.30.2