Hi Lionel, does this patch work for you? On Mon, 2023-04-10 at 10:22 -0700, Ceraolo Spurio, Daniele wrote: > On 4/6/2023 10:44 AM, Alan Previn wrote: alan:snip > > +/* > > + * Query the status of PXP support in i915. > > + * > > + * The query can fail in the following scenarios with the listed error codes: > > + * -ENODEV = PXP support is not available on the GPU device or in the kernel > > + * due to missing component drivers or kernel configs. > > + * If the IOCTL is successful, the returned parameter will be set to one of the > > + * following values: > > + * 0 = PXP support maybe available but underlying SOC fusing, BIOS or firmware > > + * configuration is unknown and a PXP-context-creation would be required > > + * for final verification of feature availibility. > > Would it be useful to add: > > 1 = PXP support is available > > And start returning that after we've successfully created our first > session? Not sure if userspace would use this though, since they still > need to handle the 0 case anyway. > I'm also ok with this patch as-is, as long as you get an ack from the > userspace drivers for this interface behavior: > > Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@xxxxxxxxx> > > Daniele alan:snip
