Reviewed-by: Tao Zhou <tao.zhou1@xxxxxxx>
> -----Original Message-----
> From: Evan Quan <evan.quan@xxxxxxx>
> Sent: 2019年5月5日 11:20
> To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
> Cc: Zhou1, Tao <Tao.Zhou1@xxxxxxx>; Quan, Evan <Evan.Quan@xxxxxxx>
> Subject: [PATCH] drm/amd/powerplay: check for invalid profile_exit setting
>
> profile_exit performance level setting is valid only when current mode is in
> profile mode.
>
> Change-Id: I6940102d38dbb7a4b0233fce5277e1704672d8f4
> Signed-off-by: Evan Quan <evan.quan@xxxxxxx>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | 10 ++++++++++
> 1 file changed, 10 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
> index b80873348624..df78372296bf 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
> @@ -404,6 +404,16 @@ static ssize_t
> amdgpu_set_dpm_forced_performance_level(struct device *dev,
> if (current_level == level)
> return count;
>
> + /* profile_exit setting is valid only when current mode is in profile
> mode */
> + if (!(current_level &
> (AMD_DPM_FORCED_LEVEL_PROFILE_STANDARD |
> + AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK |
> + AMD_DPM_FORCED_LEVEL_PROFILE_MIN_MCLK |
> + AMD_DPM_FORCED_LEVEL_PROFILE_PEAK)) &&
> + (level == AMD_DPM_FORCED_LEVEL_PROFILE_EXIT)) {
> + pr_err("Currently not in any profile mode!\n");
> + return -EINVAL;
> + }
> +
> if (is_support_sw_smu(adev)) {
> mutex_lock(&adev->pm.mutex);
> if (adev->pm.dpm.thermal_active) {
> --
> 2.21.0
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