[PATCH v3 5/5] drm/amdgpu: switch workload context to/from compute

[Christian König]

Am 26.09.22 um 23:40 schrieb Shashank Sharma:
> This patch switches the GPU workload mode to/from
> compute mode, while submitting compute workload.
>
> Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
> Signed-off-by: Shashank Sharma <shashank.sharma at amd.com>

Feel free to add my acked-by, but Felix should probably take a look as well.

Christian.

> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c | 14 +++++++++++---
>   1 file changed, 11 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
> index 5e53a5293935..1caed319a448 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
> @@ -34,6 +34,7 @@
>   #include "amdgpu_ras.h"
>   #include "amdgpu_umc.h"
>   #include "amdgpu_reset.h"
> +#include "amdgpu_ctx_workload.h"
>   
>   /* Total memory size in system memory and all GPU VRAM. Used to
>    * estimate worst case amount of memory to reserve for page tables
> @@ -703,9 +704,16 @@ int amdgpu_amdkfd_submit_ib(struct amdgpu_device *adev,
>   
>   void amdgpu_amdkfd_set_compute_idle(struct amdgpu_device *adev, bool idle)
>   {
> -	amdgpu_dpm_switch_power_profile(adev,
> -					PP_SMC_POWER_PROFILE_COMPUTE,
> -					!idle);
> +	int ret;
> +
> +	if (idle)
> +		ret = amdgpu_clear_workload_profile(adev, AMDGPU_CTX_WORKLOAD_HINT_COMPUTE);
> +	else
> +		ret = amdgpu_set_workload_profile(adev, AMDGPU_CTX_WORKLOAD_HINT_COMPUTE);
> +
> +	if (ret)
> +		drm_warn(&adev->ddev, "Failed to %s power profile to compute mode\n",
> +			 idle ? "reset" : "set");
>   }
>   
>   bool amdgpu_amdkfd_is_kfd_vmid(struct amdgpu_device *adev, u32 vmid)