Reviewed-by: Evan Quan <evan.quan@xxxxxxx>
> -----Original Message-----
> From: Liang, Prike <Prike.Liang@xxxxxxx>
> Sent: 2019年9月9日 13:22
> To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
> Cc: Quan, Evan <Evan.Quan@xxxxxxx>; Feng, Kenneth
> <Kenneth.Feng@xxxxxxx>; Huang, Ray <Ray.Huang@xxxxxxx>; Liu, Aaron
> <Aaron.Liu@xxxxxxx>; Liang, Prike <Prike.Liang@xxxxxxx>
> Subject: [PATCH] drm/amd/powerplay: Add the interface for geting dpm
> current power state
>
> implement the sysfs power_dpm_state
>
> Signed-off-by: Prike Liang <Prike.Liang@xxxxxxx>
> ---
> drivers/gpu/drm/amd/powerplay/renoir_ppt.c | 34
> ++++++++++++++++++++++++++++++
> 1 file changed, 34 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
> b/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
> index a5cf846..2c22ba4 100644
> --- a/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
> +++ b/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
> @@ -246,6 +246,38 @@ static int renoir_print_clk_levels(struct smu_context
> *smu,
> return size;
> }
>
> +static enum amd_pm_state_type renoir_get_current_power_state(struct
> +smu_context *smu) {
> + enum amd_pm_state_type pm_type;
> + struct smu_dpm_context *smu_dpm_ctx = &(smu->smu_dpm);
> +
> + if (!smu_dpm_ctx->dpm_context ||
> + !smu_dpm_ctx->dpm_current_power_state)
> + return -EINVAL;
> +
> + mutex_lock(&(smu->mutex));
> + switch (smu_dpm_ctx->dpm_current_power_state-
> >classification.ui_label) {
> + case SMU_STATE_UI_LABEL_BATTERY:
> + pm_type = POWER_STATE_TYPE_BATTERY;
> + break;
> + case SMU_STATE_UI_LABEL_BALLANCED:
> + pm_type = POWER_STATE_TYPE_BALANCED;
> + break;
> + case SMU_STATE_UI_LABEL_PERFORMANCE:
> + pm_type = POWER_STATE_TYPE_PERFORMANCE;
> + break;
> + default:
> + if (smu_dpm_ctx->dpm_current_power_state-
> >classification.flags & SMU_STATE_CLASSIFICATION_FLAG_BOOT)
> + pm_type = POWER_STATE_TYPE_INTERNAL_BOOT;
> + else
> + pm_type = POWER_STATE_TYPE_DEFAULT;
> + break;
> + }
> + mutex_unlock(&(smu->mutex));
> +
> + return pm_type;
> +}
> +
> static const struct pptable_funcs renoir_ppt_funcs = {
> .get_smu_msg_index = renoir_get_smu_msg_index,
> .get_smu_table_index = renoir_get_smu_table_index, @@ -253,6
> +285,8 @@ static const struct pptable_funcs renoir_ppt_funcs = {
> .set_power_state = NULL,
> .get_dpm_uclk_limited = renoir_get_dpm_uclk_limited,
> .print_clk_levels = renoir_print_clk_levels,
> + .get_current_power_state = renoir_get_current_power_state,
> +
> };
>
> void renoir_set_ppt_funcs(struct smu_context *smu)
> --
> 2.7.4
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