On Tue, Feb 02, 2021 at 08:04:43PM +0800, Su, Jinzhou (Joe) wrote:
> Check GFX DPM and PG bit before enable GFXOFF on Vangogh
> smu post init.
>
> Signed-off-by: Jinzhou Su <jinzhou...@amd.com>
Reviewed-by: Huang Rui <ray.hu...@amd.com>
> ---
> drivers/gpu/drm/amd/pm/swsmu/smu11/vangogh_ppt.c | 14 ++++++++++----
> 1 file changed, 10 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/vangogh_ppt.c
> b/drivers/gpu/drm/amd/pm/swsmu/smu11/vangogh_ppt.c
> index 4726cac8d824..f0f06ef47b9e 100644
> --- a/drivers/gpu/drm/amd/pm/swsmu/smu11/vangogh_ppt.c
> +++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/vangogh_ppt.c
> @@ -1712,10 +1712,16 @@ static int vangogh_post_smu_init(struct smu_context
> *smu)
> adev->gfx.config.max_sh_per_se *
> adev->gfx.config.max_shader_engines;
>
> /* allow message will be sent after enable message on Vangogh*/
> - ret = smu_cmn_send_smc_msg(smu, SMU_MSG_EnableGfxOff, NULL);
> - if (ret) {
> - dev_err(adev->dev, "Failed to Enable GfxOff!\n");
> - return ret;
> + if (smu_cmn_feature_is_supported(smu, SMU_FEATURE_DPM_GFXCLK_BIT) &&
> + (adev->pg_flags & AMD_PG_SUPPORT_GFX_PG)) {
> + ret = smu_cmn_send_smc_msg(smu, SMU_MSG_EnableGfxOff, NULL);
> + if (ret) {
> + dev_err(adev->dev, "Failed to Enable GfxOff!\n");
> + return ret;
> + }
> + } else {
> + adev->pm.pp_feature &= ~PP_GFXOFF_MASK;
> + dev_info(adev->dev, "If GFX DPM or power gate disabled, disable
> GFXOFF\n");
> }
>
> /* if all CUs are active, no need to power off any WGPs */
> --
> 2.17.1
>
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