Commit db5dcd47 authored by YuBiao Wang's avatar YuBiao Wang Committed by Alex Deucher
Browse files

drm/amdgpu: set default num_kcq to 2 under sriov 



The number of kernel queues has impact on the latency under sriov
usecase. So to reduce the latency we set the default num_kcq = 2 under
sriov if not set manually.

Signed-off-by: default avatarYuBiao Wang <YuBiao.Wang@amd.com>
Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 9d7a348d

drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c

+3 −0
Original line number Diff line number Diff line
@@ -68,6 +68,9 @@ void amdgpu_virt_init_setting(struct amdgpu_device *adev) 
	/* enable mcbp for sriov */

	amdgpu_mcbp = 1;



	/* Reduce kcq number to 2 to reduce latency */

	if (amdgpu_num_kcq == -1)

		amdgpu_num_kcq = 2;

}



void amdgpu_virt_kiq_reg_write_reg_wait(struct amdgpu_device *adev,