[PATCH 4/4] drm/amd/powerplay: add avfs check for old asics on Vi.

[Deucher, Alexander]

> -----Original Message-----
> From: amd-gfx [mailto:amd-gfx-bounces at lists.freedesktop.org] On Behalf
> Of Rex Zhu
> Sent: Monday, July 03, 2017 6:14 AM
> To: amd-gfx at lists.freedesktop.org
> Cc: Zhu, Rex
> Subject: [PATCH 4/4] drm/amd/powerplay: add avfs check for old asics on Vi.
> 
> Change-Id: I1737ba27ae2a8f5c579ccb541ced9cb979ffd1ff
> Signed-off-by: Rex Zhu <Rex.Zhu at amd.com>

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

> ---
>  drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
> b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
> index e7ecbd1..8fe62aa 100644
> --- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
> +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
> @@ -4660,6 +4660,15 @@ static int smu7_set_power_profile_state(struct
> pp_hwmgr *hwmgr,
> 
>  static int smu7_avfs_control(struct pp_hwmgr *hwmgr, bool enable)
>  {
> +	struct pp_smumgr *smumgr = (struct pp_smumgr *)(hwmgr-
> >smumgr);
> +	struct smu7_smumgr *smu_data = (struct smu7_smumgr
> *)(smumgr->backend);
> +
> +	if (smu_data == NULL)
> +		return -EINVAL;
> +
> +	if (smu_data->avfs.avfs_btc_status == AVFS_BTC_NOTSUPPORTED)
> +		return 0;
> +
>  	if (enable) {
>  		if (!PHM_READ_VFPF_INDIRECT_FIELD(hwmgr->device,
>  				CGS_IND_REG__SMC, FEATURE_STATUS,
> AVS_ON))
> --
> 1.9.1
> 
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