[PATCH 1/2] drm/amdkfd: Fix getting unique_id in topology

Felix Kuehling felix.kuehling at amd.com
Wed Oct 28 16:15:30 UTC 2020


Please also remove the broken code that initializes gpu->unique_id and
remove the unique_id field from the structure.

Regards,
  Felix

Am 2020-10-28 um 11:22 a.m. schrieb Kent Russell:
> Since the unique_id is now obtained in amdgpu in smu_late_init,
> topology's device addition is now happening before the unique_id is
> saved, thus topology misses it. To work around this, we use the
> amdgpu_amdkfd_get_unique_id to get the unique_id at read time.
>
> Signed-off-by: Kent Russell <kent.russell at amd.com>
> ---
>  drivers/gpu/drm/amd/amdkfd/kfd_topology.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
> index 3f2aa055c32c..a3fc23873819 100644
> --- a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
> +++ b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
> @@ -1340,7 +1340,7 @@ int kfd_topology_add_device(struct kfd_dev *gpu)
>  		dev->gpu->dqm->sched_policy != KFD_SCHED_POLICY_NO_HWS) ?
>  		amdgpu_amdkfd_get_num_gws(dev->gpu->kgd) : 0;
>  	dev->node_props.num_cp_queues = get_cp_queues_num(dev->gpu->dqm);
> -	dev->node_props.unique_id = gpu->unique_id;
> +	dev->node_props.unique_id = amdgpu_amdkfd_get_unique_id(dev->gpu->kgd);
>  
>  	kfd_fill_mem_clk_max_info(dev);
>  	kfd_fill_iolink_non_crat_info(dev);


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