[Intel-gfx] [PATCH] drm/i915/guc/slpc: Disable rps_boost debugfs

[Belgaumkar, Vinay]

On 5/12/2023 5:39 PM, Dixit, Ashutosh wrote:
> On Fri, 12 May 2023 16:56:03 -0700, Vinay Belgaumkar wrote:
> Hi Vinay,
>
>> rps_boost debugfs shows host turbo related info. This is not valid
>> when SLPC is enabled.
> A couple of thoughts about this. It appears people are know only about
> rps_boost_info and don't know about guc_slpc_info? So:
>
> a. Instead of hiding the rps_boost_info file do we need to print there
>     saying "SLPC is enabled, go look at guc_slpc_info"?
rps_boost_info has an eval() function which disables the interface when 
RPS is OFF. This is indeed the case here, so shouldn't we just follow 
that instead of trying to link the two?
>
> b. Or, even just call guc_slpc_info_show from rps_boost_show (so the two
>     files will show the same SLPC information)?

slpc_info has a lot of other info like the SLPC state, not sure that 
matches up with the rps_boost_info name.

Thanks,

Vinay.

>
> Ashutosh
>
>
>> guc_slpc_info already shows the number of boosts.  Add num_waiters there
>> as well and disable rps_boost when SLPC is enabled.
>>
>> Bug: https://gitlab.freedesktop.org/drm/intel/-/issues/7632
>> Signed-off-by: Vinay Belgaumkar <vinay.belgaumkar at intel.com>