[PATCH v4 0/3] BMG PCIe Gen5 downgrade attributes and usage

[Rodrigo Vivi]

On Mon, Apr 28, 2025 at 01:12:38PM +0300, Raag Jadav wrote:
> On Fri, Apr 25, 2025 at 07:36:23PM +0530, Raag Jadav wrote:
> > This series exposes sysfs attributes for BMG PCIe Gen5 downgrade and
> > documents their usage.
> 
> Anything I can do to move this forward?

I almost push it here, but then I noticed that it is gen5_downgrade.
Hadn't we agreed to follow what spec says so?

"to then automatically persist the Gen4 downgrade flag in Flash"
"Write Gen4 Downgrade bit to MRC Flash File"

== Applying  PCIe Gen4 Downgrade ==

Although I see that there are some mentions calling "Gen5 downgrade", "Gen4 downgrade" seems to be the most used term in the specs, specially when calling bits and
sections names...


> 
> Raag
> 
> > v1: https://patchwork.freedesktop.org/series/147023/
> > 
> > v2: Move from debugfs to sysfs (Lucas, Rodrigo, Badal)
> >     Rework macros and their naming (Rodrigo)
> > 
> > v3: Move xe_device_sysfs_init() to xe_device_probe() (Riana)
> >     Use sysfs_create_files() (Riana)
> >     Fix checkpatch warning (Riana)
> > 
> > v4: s/gen4_downspeed/gen5_downgrade (Lucas, Rodrigo, Riana)
> > 
> > Raag Jadav (3):
> >   drm/xe/pm: s/xe_device_sysfs_init/xe_pm_sysfs_init
> >   drm/xe: Expose PCIe Gen5 downgrade attributes
> >   drm/xe/doc: Wire up PCIe Gen5 limitations
> > 
> >  Documentation/gpu/xe/xe_firmware.rst |   6 ++
> >  drivers/gpu/drm/xe/xe_device.c       |   5 ++
> >  drivers/gpu/drm/xe/xe_device_sysfs.c | 107 ++++++++++++++++++++++++++-
> >  drivers/gpu/drm/xe/xe_device_sysfs.h |   1 +
> >  drivers/gpu/drm/xe/xe_pcode_api.h    |   5 ++
> >  drivers/gpu/drm/xe/xe_pm.c           |   2 +-
> >  6 files changed, 123 insertions(+), 3 deletions(-)
> > 
> > -- 
> > 2.34.1
> >