Re: [PATCH v2 1/7] drm/amdgpu: Added init/fini functions for workload

[Shashank Sharma]

Hey Arvind,

On 21/08/2023 08:47, Arvind Yadav wrote:
> The'struct amdgpu_smu_workload' initialization/cleanup
> functions is added by this patch.
>
> v2:
> - Splitting big patch into separate patches.
> - Added new fini function.
>
> Cc: Shashank Sharma <shashank.sharma@xxxxxxx>
> Cc: Christian Koenig <christian.koenig@xxxxxxx>
> Cc: Alex Deucher <alexander.deucher@xxxxxxx>
> Signed-off-by: Arvind Yadav <Arvind.Yadav@xxxxxxx>
> ---
>   drivers/gpu/drm/amd/amdgpu/Makefile           |  2 +-
>   drivers/gpu/drm/amd/amdgpu/amdgpu.h           |  3 ++
>   drivers/gpu/drm/amd/amdgpu/amdgpu_device.c    |  4 ++
>   drivers/gpu/drm/amd/amdgpu/amdgpu_workload.c  | 44 +++++++++++++++
>   drivers/gpu/drm/amd/include/amdgpu_workload.h | 53 +++++++++++++++++++
>   5 files changed, 105 insertions(+), 1 deletion(-)
>   create mode 100644 drivers/gpu/drm/amd/amdgpu/amdgpu_workload.c
>   create mode 100644 drivers/gpu/drm/amd/include/amdgpu_workload.h
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/Makefile b/drivers/gpu/drm/amd/amdgpu/Makefile
> index 415a7fa395c4..6a9e187d61e1 100644
> --- a/drivers/gpu/drm/amd/amdgpu/Makefile
> +++ b/drivers/gpu/drm/amd/amdgpu/Makefile
> @@ -60,7 +60,7 @@ amdgpu-y += amdgpu_device.o amdgpu_kms.o \
>   	amdgpu_umc.o smu_v11_0_i2c.o amdgpu_fru_eeprom.o amdgpu_rap.o \
>   	amdgpu_fw_attestation.o amdgpu_securedisplay.o \
>   	amdgpu_eeprom.o amdgpu_mca.o amdgpu_psp_ta.o amdgpu_lsdma.o \
> -	amdgpu_ring_mux.o
> +	amdgpu_ring_mux.o amdgpu_workload.o
>   
>   amdgpu-$(CONFIG_PROC_FS) += amdgpu_fdinfo.o
>   
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> index 02b827785e39..1939fa1af8a6 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> @@ -107,6 +107,7 @@
>   #include "amdgpu_fdinfo.h"
>   #include "amdgpu_mca.h"
>   #include "amdgpu_ras.h"
> +#include "amdgpu_workload.h"
>   
>   #define MAX_GPU_INSTANCE		16
>   
> @@ -1050,6 +1051,8 @@ struct amdgpu_device {
>   
>   	bool                            job_hang;
>   	bool                            dc_enabled;
> +
> +	struct amdgpu_smu_workload	smu_workload;
>   };
>   
>   static inline struct amdgpu_device *drm_to_adev(struct drm_device *ddev)
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> index 5c7d40873ee2..cd3bf641b630 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> @@ -2243,6 +2243,8 @@ static int amdgpu_device_ip_early_init(struct amdgpu_device *adev)
>   	adev->cg_flags &= amdgpu_cg_mask;
>   	adev->pg_flags &= amdgpu_pg_mask;
>   
> +	amdgpu_workload_profile_init(adev);
> +
>   	return 0;
>   }
>   
> @@ -2890,6 +2892,8 @@ static int amdgpu_device_ip_fini(struct amdgpu_device *adev)
>   {
>   	int i, r;
>   
> +	amdgpu_workload_profile_fini(adev);
> +
>   	if (amdgpu_sriov_vf(adev) && adev->virt.ras_init_done)
>   		amdgpu_virt_release_ras_err_handler_data(adev);
>   
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_workload.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_workload.c
> new file mode 100644
> index 000000000000..32166f482f77
> --- /dev/null
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_workload.c
> @@ -0,0 +1,44 @@
> +// SPDX-License-Identifier: MIT
> +/*
> + * Copyright 2023 Advanced Micro Devices, Inc.
> + *
> + * Permission is hereby granted, free of charge, to any person obtaining a
> + * copy of this software and associated documentation files (the "Software"),
> + * to deal in the Software without restriction, including without limitation
> + * the rights to use, copy, modify, merge, publish, distribute, sublicense,
> + * and/or sell copies of the Software, and to permit persons to whom the
> + * Software is furnished to do so, subject to the following conditions:
> + *
> + * The above copyright notice and this permission notice shall be included in
> + * all copies or substantial portions of the Software.
> + *
> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
> + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
> + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> + * OTHER DEALINGS IN THE SOFTWARE.
> + *
> + */
> +
> +#include "amdgpu.h"
> +
> +void amdgpu_workload_profile_init(struct amdgpu_device *adev)
> +{
> +	adev->smu_workload.adev = adev;
> +	adev->smu_workload.submit_workload_status = 0;
> +	adev->smu_workload.initialized = true;
why do we need this variable ?
> +
> +	mutex_init(&adev->smu_workload.workload_lock);
> +}
> +
> +void amdgpu_workload_profile_fini(struct amdgpu_device *adev)
> +{
> +	if (!adev->smu_workload.initialized)
> +		return;
> +
> +	adev->smu_workload.submit_workload_status = 0;
> +	adev->smu_workload.initialized = false;
> +	mutex_destroy(&adev->smu_workload.workload_lock);
> +}
> diff --git a/drivers/gpu/drm/amd/include/amdgpu_workload.h b/drivers/gpu/drm/amd/include/amdgpu_workload.h
> new file mode 100644
> index 000000000000..5d0f068422d4
> --- /dev/null
> +++ b/drivers/gpu/drm/amd/include/amdgpu_workload.h
> @@ -0,0 +1,53 @@
> +/* SPDX-License-Identifier: MIT */
> +/*
> + * Copyright 2023 Advanced Micro Devices, Inc.
> + *
> + * Permission is hereby granted, free of charge, to any person obtaining a
> + * copy of this software and associated documentation files (the "Software"),
> + * to deal in the Software without restriction, including without limitation
> + * the rights to use, copy, modify, merge, publish, distribute, sublicense,
> + * and/or sell copies of the Software, and to permit persons to whom the
> + * Software is furnished to do so, subject to the following conditions:
> + *
> + * The above copyright notice and this permission notice shall be included in
> + * all copies or substantial portions of the Software.
> + *
> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
> + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
> + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> + * OTHER DEALINGS IN THE SOFTWARE.
> + *
> + */
> +
> +#ifndef _AMDGPU_WORKLOAD_H_
> +#define _AMDGPU_WORKLOAD_H_
> +
> +struct amdgpu_smu_workload {
> +	struct amdgpu_device	*adev;
> +	struct mutex		workload_lock;
> +	struct delayed_work	smu_delayed_work;

call it power_profile_work instead ? Looks good otherwise.

- Shashank

> +	uint32_t		submit_workload_status;
> +	bool			initialized;
> +	atomic_t		power_profile_ref[PP_SMC_POWER_PROFILE_COUNT];
> +};
> +
> +/* Workload mode names */
> +static const char * const amdgpu_workload_mode_name[] = {
> +	"Default",
> +	"3D",
> +	"Powersaving",
> +	"Video",
> +	"VR",
> +	"Compute",
> +	"Custom",
> +	"Window3D"
> +};
> +
> +void amdgpu_workload_profile_init(struct amdgpu_device *adev);
> +
> +void amdgpu_workload_profile_fini(struct amdgpu_device *adev);
> +
> +#endif