linux-kernel - Re: [PATCH 4/5] media: venus: Add interface for load per core

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Date:   Mon, 17 Jun 2019 12:05:24 +0300
From:   Stanimir Varbanov <stanimir.varbanov@...aro.org>
To:     Aniket Masule <amasule@...eaurora.org>, linux-media@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        vgarodia@...eaurora.org
Subject: Re: [PATCH 4/5] media: venus: Add interface for load per core

Hi Aniket,

On 6/11/19 9:05 AM, Aniket Masule wrote:
> Add and interface to calculate load per core. Also,
> add an interface to get maximum cores available with
> video. This interface is preparation for updating core
> selection.
> 
> Signed-off-by: Aniket Masule <amasule@...eaurora.org>
> ---
>  drivers/media/platform/qcom/venus/helpers.c    | 18 ++++++++++++++++++
>  drivers/media/platform/qcom/venus/hfi_helper.h |  1 +
>  drivers/media/platform/qcom/venus/hfi_parser.h |  5 +++++
>  3 files changed, 24 insertions(+)
> 
> diff --git a/drivers/media/platform/qcom/venus/helpers.c b/drivers/media/platform/qcom/venus/helpers.c
> index 7bcc1e6..edb653e 100644
> --- a/drivers/media/platform/qcom/venus/helpers.c
> +++ b/drivers/media/platform/qcom/venus/helpers.c
> @@ -331,6 +331,24 @@ static u32 load_per_instance(struct venus_inst *inst)
>  	return mbs * inst->fps;
>  }
>  
> +static u32 load_per_core(struct venus_core *core, u32 core_id)
> +{
> +	struct venus_inst *inst = NULL;
> +	u32 mbs_per_sec = 0, load = 0;
> +
> +	mutex_lock(&core->lock);
> +	list_for_each_entry(inst, &core->instances, list) {
> +		if (!(inst->clk_data.core_id == core_id))
> +			continue;
> +
> +		mbs_per_sec += load_per_instance(inst);
> +		load += mbs_per_sec * inst->clk_data.codec_data->vpp_cycles;
> +	}
> +	mutex_unlock(&core->lock);
> +
> +	return load;
> +}
> +
>  static u32 load_per_type(struct venus_core *core, u32 session_type)
>  {
>  	struct venus_inst *inst = NULL;
> diff --git a/drivers/media/platform/qcom/venus/hfi_helper.h b/drivers/media/platform/qcom/venus/hfi_helper.h
> index 34ea503..3677e2e 100644
> --- a/drivers/media/platform/qcom/venus/hfi_helper.h
> +++ b/drivers/media/platform/qcom/venus/hfi_helper.h
> @@ -559,6 +559,7 @@ struct hfi_bitrate {
>  #define HFI_CAPABILITY_LCU_SIZE				0x14
>  #define HFI_CAPABILITY_HIER_P_HYBRID_NUM_ENH_LAYERS	0x15
>  #define HFI_CAPABILITY_MBS_PER_SECOND_POWERSAVE		0x16
> +#define HFI_CAPABILITY_MAX_VIDEOCORES          0x2B

please use tabs instead of spaces.

>  
>  struct hfi_capability {
>  	u32 capability_type;
> diff --git a/drivers/media/platform/qcom/venus/hfi_parser.h b/drivers/media/platform/qcom/venus/hfi_parser.h
> index 3e931c7..264e6dd 100644
> --- a/drivers/media/platform/qcom/venus/hfi_parser.h
> +++ b/drivers/media/platform/qcom/venus/hfi_parser.h
> @@ -107,4 +107,9 @@ static inline u32 frate_step(struct venus_inst *inst)
>  	return cap_step(inst, HFI_CAPABILITY_FRAMERATE);
>  }
>  
> +static inline u32 core_num_max(struct venus_inst *inst)
> +{
> +	return cap_max(inst, HFI_CAPABILITY_MAX_VIDEOCORES);
> +}
> +
>  #endif
> 

-- 
regards,
Stan