Reviewed-by: Evan Quan
> -Original Message-
> From: Wang, Kevin(Yang)
> Sent: Friday, July 12, 2019 11:34 AM
> To: amd-gfx@lists.freedesktop.org
> Cc: Feng, Kenneth ; Quan, Evan
> ; Wang, Kevin(Yang)
> Subject: [PATCH] drm/amd/powerplay: add pstate mclk(uclk) support for
> navi10
>
> add pstate mclk(uclk) support.
>
> Change-Id: I7f3bca4901833b4ea213fe02249fc055b80e5cdd
> Signed-off-by: Kevin Wang
> ---
> drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | 1 +
> drivers/gpu/drm/amd/powerplay/navi10_ppt.c | 8 +++-
> 2 files changed, 8 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
> b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
> index de6cc5d489cd..67db2746ec4f 100644
> --- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
> +++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
> @@ -136,6 +136,7 @@ int smu_get_dpm_freq_range(struct smu_context
> *smu, enum smu_clk_type clk_type,
> return -EINVAL;
>
> switch (clk_type) {
> + case SMU_MCLK:
> case SMU_UCLK:
> if (!smu_feature_is_enabled(smu,
> SMU_FEATURE_DPM_UCLK_BIT)) {
> pr_warn("uclk dpm is not enabled\n"); diff --git
> a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
> b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
> index cd32b20a13c1..16a4c1ca98cf 100644
> --- a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
> +++ b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
> @@ -709,7 +709,7 @@ static int navi10_force_clk_levels(struct smu_context
> *smu, static int navi10_populate_umd_state_clk(struct smu_context *smu)
> {
> int ret = 0;
> - uint32_t min_sclk_freq = 0;
> + uint32_t min_sclk_freq = 0, min_mclk_freq = 0;
>
> ret = smu_get_dpm_freq_range(smu, SMU_SCLK, _sclk_freq,
> NULL);
> if (ret)
> @@ -717,6 +717,12 @@ static int navi10_populate_umd_state_clk(struct
> smu_context *smu)
>
> smu->pstate_sclk = min_sclk_freq * 100;
>
> + ret = smu_get_dpm_freq_range(smu, SMU_MCLK, _mclk_freq,
> NULL);
> + if (ret)
> + return ret;
> +
> + smu->pstate_mclk = min_mclk_freq * 100;
> +
> return ret;
> }
>
> --
> 2.22.0
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