[PATCH libdrm 1/4] intel: add IS_GENX() generic macro

[Chris Wilson]

Quoting Lucas De Marchi (2018-08-28 02:00:27)
> On Sat, Aug 25, 2018 at 10:35:23AM +0100, Chris Wilson wrote:
> > Quoting Lucas De Marchi (2018-08-25 00:56:46)
> > > diff --git a/intel/intel_chipset.h b/intel/intel_chipset.h
> > > index 4a34b7be..8a0e3e76 100644
> > > --- a/intel/intel_chipset.h
> > > +++ b/intel/intel_chipset.h
> > > @@ -568,6 +568,26 @@
> > >  
> > >  #define IS_GEN11(devid)                (IS_ICELAKE_11(devid))
> > >  
> > > +/* New platforms use kernel pci ids */
> > > +#include "i915_pciids.h"
> > > +
> > > +struct pci_device_id {
> > 
> > Don't call it pci_device_id, depending on caller that name may already
> > be taken by libpciaccess.
> > 
> > > +       uint32_t unused0, device;
> > > +       uint32_t unused1, unused2;
> > > +       uint32_t unused3, unused4;
> > These are all uint16_t.
> 
> more on this:
> 
> I can make the first 2 uint16_t, but not the rest due to the way they
> are declared in INTEL_VGA_DEVICE: (~0 has int type by default), unused3
> and unused4 are clearly not uint16_t

I had it in my mind that we did have one extra level of macro in there
that would allow us to drop unused fields. We could redef
INTEL_VGA_DEVICE() and INTEL_QUANTA_VGA_DEVICE() but one extra level of
macro would be easier for future.

And then while you are there, add the missing 'u' to ~0u
-Chris.