[Intel-gfx] [PATCH xf86-video-intel v4] Sync i915_pciids upto 8717c6b7414f

[Chris Wilson]

Quoting Liwei Song (2020-04-21 10:59:04)
> 
> 
> On 4/21/20 17:29, Chris Wilson wrote:
> > Quoting Liwei Song (2020-04-21 09:41:28)
> >> +static const struct intel_device_info intel_cannonlake_info = {
> >> +       .gen = 0115,
> > .gen = 0120 /* 10 */
> > 
> >> +};
> >> +
> >> +static const struct intel_device_info intel_icelake_info = {
> >> +       .gen = 0116,
> > .gen = 0130 /* 11 */
> > 
> >> +};
> >> +
> >> +static const struct intel_device_info intel_elkhartlake_info = {
> >> +       .gen = 0117,
> > .gen = 0131
> > 
> >> +};
> >> +
> >> +static const struct intel_device_info intel_tigerlake_info = {
> >> +       .gen = 0120,
> > .gen = 0140 /* 12 */
> > 
> > You definitely do not want to feed them through the gen9 assembler.
> 
> Thanks, will modify it in v5, but could you explain more here how we
> decide the gen number, I really do not have too much knowledge here,
> I use to think it is an increasing number like some other definition.

It's octal, with the low octet being a revision number (so we can
quickly tell big from little core mostly, but whatever else makes sense
for that gen).
-Chris