drm/amd/powerplay: expose max engine and memory clock info for powerplay enabled case

[Alex Deucher]

On Thu, Oct 13, 2016 at 4:24 AM, Quan, Evan <Evan.Quan at amd.com> wrote:
> Hi Alex,
>
>
>
> Thanks for your information.
>
> I updated the patch using the amdgpu_dpm_get_sclk/mclk APIs which make the
> patch much simpler.
>
>

We can use amdgpu_dpm_get_sclk() and amdgpu_dpm_get_mclk() for both
powerplay and non-powerplay.  No need to special case it.

Alex

>
> Regards,
>
> Evan
>
>
>
> From: Deucher, Alexander
> Sent: Thursday, October 13, 2016 6:04 AM
> To: Quan, Evan <Evan.Quan at amd.com>; amd-gfx at lists.freedesktop.org
> Cc: Zhang, Jerry <Jerry.Zhang at amd.com>; Huan, Alvin <Alvin.Huan at amd.com>;
> Quan, Evan <Evan.Quan at amd.com>; Huang, Ray <Ray.Huang at amd.com>
> Subject: RE: drm/amd/powerplay: expose max engine and memory clock info for
> powerplay enabled case
>
>
>
> I don't know if we need to add a cgs call to fill in the
> max_clock_voltage_limits structure.  That's mostly just leftover from
> radeon.  A better solution would be use the existing amdgpu_dpm_get_sclk and
> amdgpu_dpm_get_mclk macros.  Maybe something like the attached patch? Unless
> there is a specific need for the max clocks on AC.  I think in most cases
> the results will be the same.
>
>
>
> Alex
>
>
>
> From: amd-gfx [mailto:amd-gfx-bounces at lists.freedesktop.org] On Behalf Of
> Quan, Evan
> Sent: Wednesday, October 12, 2016 1:53 AM
> To: amd-gfx at lists.freedesktop.org
> Cc: Zhang, Jerry; Huan, Alvin; Quan, Evan; Huang, Ray
> Subject: drm/amd/powerplay: expose max engine and memory clock info for
> powerplay enabled case
>
>
>
> Hi All,
>
>
>
> We found the max engine clock and max memory clock are both wrongly reported
> as 0(by AMDGPU_INFO_DEV_INFO ioctl).
>
> The attached patch tries to fix it.
>
> Please help to review it.
>
> Any comment is welcomed.
>
>
>
> Regards,
>
> Evan
>
>
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