On 7/31/19 11:39 AM, Evan Quan wrote:
> Enable arcturus power profile retrieval and setting.
>
> Change-Id: I85447ba9ca7de8e197840f76ce3745363c4133a6
> Signed-off-by: Evan Quan <[email protected]>
> ---
>   drivers/gpu/drm/amd/powerplay/arcturus_ppt.c | 69 ++++++++++++++++++++
>   1 file changed, 69 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c 
> b/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
> index c3f9487276c0..47d015035906 100644
> --- a/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
> +++ b/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
> @@ -1503,6 +1503,73 @@ static int arcturus_get_power_limit(struct smu_context 
> *smu,
>       return 0;
>   }
>   
> +static int arcturus_get_power_profile_mode(struct smu_context *smu,
> +                                        char *buf)
> +{
> +     static const char *profile_name[] = {
> +                                     "BOOTUP_DEFAULT",
> +                                     "3D_FULL_SCREEN",
> +                                     "POWER_SAVING",
> +                                     "VIDEO",
> +                                     "VR",
> +                                     "COMPUTE",
> +                                     "CUSTOM"};
> +     uint32_t i, size = 0;
> +     int16_t workload_type = 0;
> +
> +     if (!smu->pm_enabled || !buf)
> +             return -EINVAL;
> +
> +     for (i = 0; i <= PP_SMC_POWER_PROFILE_CUSTOM; i++) {
> +             /*
> +              * Conv PP_SMC_POWER_PROFILE* to WORKLOAD_PPLIB_*_BIT
> +              * Not all profile modes are supported on arcturus.
> +              */
> +             workload_type = smu_workload_get_type(smu, i);
> +             if (workload_type < 0)
> +                     continue;
> +
> +             size += sprintf(buf + size, "%2d %14s%s\n",
> +                     i, profile_name[i], (i == smu->power_profile_mode) ? 
> "*" : " ");
> +     }
> +
> +     return size;
> +}
> +
> +static int arcturus_set_power_profile_mode(struct smu_context *smu,
> +                                        long *input,
> +                                        uint32_t size)
> +{
> +     int workload_type = 0;
> +     uint32_t profile_mode = input[size];
> +
> +     if (!smu->pm_enabled)
> +             return -EINVAL;
> +
> +     if (profile_mode > PP_SMC_POWER_PROFILE_CUSTOM) {
> +             pr_err("Invalid power profile mode %d\n", profile_mode);
> +             return -EINVAL;
> +     }
> +
> +     /*
> +      * Conv PP_SMC_POWER_PROFILE* to WORKLOAD_PPLIB_*_BIT
> +      * Not all profile modes are supported on arcturus.
> +      */
> +     workload_type = smu_workload_get_type(smu, profile_mode);
> +     if (workload_type < 0) {
> +             pr_err("Unsupported power profile mode %d on arcturus\n", 
> profile_mode);
> +             return -EINVAL;
> +     }
> +
> +     smu_send_smc_msg_with_param(smu,
> +                                 SMU_MSG_SetWorkloadMask,
> +                                 1 << workload_type);

[kevin]:

please d check return value, after send message succeed, then modify 
power_profile_mode value.

if send message failed, you can't update power_profile_mode value.

after fixed:

Reviewed-by: Kevin Wang <[email protected]>

> +
> +     smu->power_profile_mode = profile_mode;
> +
> +     return 0;
> +}
> +
>   static void arcturus_dump_pptable(struct smu_context *smu)
>   {
>       struct smu_table_context *table_context = &smu->smu_table;
> @@ -1968,6 +2035,8 @@ static const struct pptable_funcs arcturus_ppt_funcs = {
>       .force_dpm_limit_value = arcturus_force_dpm_limit_value,
>       .unforce_dpm_levels = arcturus_unforce_dpm_levels,
>       .get_profiling_clk_mask = arcturus_get_profiling_clk_mask,
> +     .get_power_profile_mode = arcturus_get_power_profile_mode,
> +     .set_power_profile_mode = arcturus_set_power_profile_mode,
>       /* debug (internal used) */
>       .dump_pptable = arcturus_dump_pptable,
>       .get_power_limit = arcturus_get_power_limit,
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