[PATCH] drm/amd/powerplay: guard manual mode prerequisite for clock level force

[Alex Deucher]

On Fri, Aug 30, 2019 at 5:37 AM Evan Quan <evan.quan at amd.com> wrote:
>
> Force clock level is for dpm manual mode only.
>
> Change-Id: I3b4caf3fafc72197d65e2b9255c68e40e673e25e
> Reported-by: Candice Li <candice.li at amd.com>
> Signed-off-by: Evan Quan <evan.quan at amd.com>

Acked-by: Alex Deucher <alexander.deucher at amd.com>

> ---
>  drivers/gpu/drm/amd/powerplay/amdgpu_smu.c     | 18 ++++++++++++++++++
>  drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h |  5 +++--
>  drivers/gpu/drm/amd/powerplay/vega20_ppt.c     |  6 ------
>  3 files changed, 21 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
> index 317d41331f4b..dd6c1547e523 100644
> --- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
> +++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
> @@ -1758,6 +1758,24 @@ int smu_set_display_count(struct smu_context *smu, uint32_t count)
>         return ret;
>  }
>
> +int smu_force_clk_levels(struct smu_context *smu,
> +                        enum smu_clk_type clk_type,
> +                        uint32_t mask)
> +{
> +       struct smu_dpm_context *smu_dpm_ctx = &(smu->smu_dpm);
> +       int ret = 0;
> +
> +       if (smu_dpm_ctx->dpm_level != AMD_DPM_FORCED_LEVEL_MANUAL) {
> +               pr_debug("force clock level is for dpm manual mode only.\n");
> +               return -EINVAL;
> +       }
> +
> +       if (smu->ppt_funcs && smu->ppt_funcs->force_clk_levels)
> +               ret = smu->ppt_funcs->force_clk_levels(smu, clk_type, mask);
> +
> +       return ret;
> +}
> +
>  const struct amd_ip_funcs smu_ip_funcs = {
>         .name = "smu",
>         .early_init = smu_early_init,
> diff --git a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
> index e1165d323ea9..b19224cb6d6d 100644
> --- a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
> +++ b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
> @@ -635,8 +635,6 @@ struct smu_funcs
>         ((smu)->funcs->get_current_clk_freq? (smu)->funcs->get_current_clk_freq((smu), (clk_id), (value)) : 0)
>  #define smu_print_clk_levels(smu, clk_type, buf) \
>         ((smu)->ppt_funcs->print_clk_levels ? (smu)->ppt_funcs->print_clk_levels((smu), (clk_type), (buf)) : 0)
> -#define smu_force_clk_levels(smu, clk_type, level) \
> -       ((smu)->ppt_funcs->force_clk_levels ? (smu)->ppt_funcs->force_clk_levels((smu), (clk_type), (level)) : 0)
>  #define smu_get_od_percentage(smu, type) \
>         ((smu)->ppt_funcs->get_od_percentage ? (smu)->ppt_funcs->get_od_percentage((smu), (type)) : 0)
>  #define smu_set_od_percentage(smu, type, value) \
> @@ -833,5 +831,8 @@ const char *smu_get_message_name(struct smu_context *smu, enum smu_message_type
>  const char *smu_get_feature_name(struct smu_context *smu, enum smu_feature_mask feature);
>  size_t smu_sys_get_pp_feature_mask(struct smu_context *smu, char *buf);
>  int smu_sys_set_pp_feature_mask(struct smu_context *smu, uint64_t new_mask);
> +int smu_force_clk_levels(struct smu_context *smu,
> +                        enum smu_clk_type clk_type,
> +                        uint32_t mask);
>
>  #endif
> diff --git a/drivers/gpu/drm/amd/powerplay/vega20_ppt.c b/drivers/gpu/drm/amd/powerplay/vega20_ppt.c
> index 899bf96b23e1..78d77a63e084 100644
> --- a/drivers/gpu/drm/amd/powerplay/vega20_ppt.c
> +++ b/drivers/gpu/drm/amd/powerplay/vega20_ppt.c
> @@ -1274,14 +1274,8 @@ static int vega20_force_clk_levels(struct smu_context *smu,
>         struct vega20_dpm_table *dpm_table;
>         struct vega20_single_dpm_table *single_dpm_table;
>         uint32_t soft_min_level, soft_max_level, hard_min_level;
> -       struct smu_dpm_context *smu_dpm = &smu->smu_dpm;
>         int ret = 0;
>
> -       if (smu_dpm->dpm_level != AMD_DPM_FORCED_LEVEL_MANUAL) {
> -               pr_info("force clock level is for dpm manual mode only.\n");
> -               return -EINVAL;
> -       }
> -
>         mutex_lock(&(smu->mutex));
>
>         soft_min_level = mask ? (ffs(mask) - 1) : 0;
> --
> 2.23.0
>
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