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drm/amdgpu: Improve MES responsiveness during oversubscription

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When MES is oversubscribed it may not frequently check for new
command submissions from driver if the scheduling load is high.
Response latency as high as 5 seconds has been observed.

Enable a flag which adds a check for new commands between
scheduling quantums.

Signed-off-by: Jay Cornwall <jay.cornwall@amd.com>
Cc: Alexandru Tudor <alexandru.tudor@amd.com>
Reviewed-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Jay Cornwall 2023-10-04 10:53:26 -05:00 committed by Alex Deucher
parent 219223eca4
commit 757920585d
1 changed files with 1 additions and 0 deletions
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drivers/gpu/drm/amd/amdgpu/mes_v11_0.c
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@ -406,6 +406,7 @@ static int mes_v11_0_set_hw_resources(struct amdgpu_mes *mes)
mes_set_hw_res_pkt.disable_mes_log = 1;
mes_set_hw_res_pkt.use_different_vmid_compute = 1;
mes_set_hw_res_pkt.enable_reg_active_poll = 1;
mes_set_hw_res_pkt.enable_level_process_quantum_check = 1;
mes_set_hw_res_pkt.oversubscription_timer = 50;
return mes_v11_0_submit_pkt_and_poll_completion(mes,