Re: [PATCH v2 0/3] VF: Avoid reading inaccessible registers

[Matt Roper <matthew.d.roper@intel.com>]

On Tue, Dec 10, 2024 at 05:15:22PM +0100, Marcin Bernatowicz wrote:
> From VF-level some registers are not accessible. Don't check for flat
> ccs from VF-level, also don't use Wa_22019338487 for VF.
> 
> v2: Updated description for has_flat_ccs flag setting on VF
>     when disabled in BIOS. (Matt)
>     Reworked workaround ommision on VF to use the RTP mechanism. (Matt)

I think you might have sent this to the wrong mailing list?  This looks
like it should probably be on intel-xe rather than igt-dev.


Matt

> 
> Cc: Adam Miszczak <adam.miszczak@linux.intel.com>
> Cc: Jakub Kolakowski <jakub1.kolakowski@intel.com>
> Cc: Lucas De Marchi <lucas.demarchi@intel.com>
> Cc: Lukasz Laguna <lukasz.laguna@intel.com>
> Cc: Matt Roper <matthew.d.roper@intel.com>
> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
> Cc: Michal Winiarski <michal.winiarski@intel.com>
> Cc: Narasimha C V <narasimha.c.v@intel.com>
> Cc: Piotr Piorkowski <piotr.piorkowski@intel.com>
> Cc: Satyanarayana K V P <satyanarayana.k.v.p@intel.com>
> Cc: Tomasz Lis <tomasz.lis@intel.com>
> 
> Jakub Kolakowski (1):
>   drm/xe/vf: Don't check has flat ccs in bios on VF
> 
> Marcin Bernatowicz (2):
>   drm/xe/rtp: Add match helper to omit SR-IOV VF device
>   drm/xe/vf: Don't apply Wa_22019338487 for VF
> 
>  drivers/gpu/drm/xe/xe_device.c     |  2 +-
>  drivers/gpu/drm/xe/xe_rtp.c        |  5 +++++
>  drivers/gpu/drm/xe/xe_rtp.h        | 11 +++++++++++
>  drivers/gpu/drm/xe/xe_wa_oob.rules |  2 +-
>  4 files changed, 18 insertions(+), 2 deletions(-)
> 
> -- 
> 2.31.1
> 

-- 
Matt Roper
Graphics Software Engineer
Linux GPU Platform Enablement
Intel Corporation