[Intel-gfx] RFC: libdrm: Support Iris Graphics 540 & 550 (Skylake GT3e)

[Thorsten Leemhuis]

Kenneth Graunke wrote on 28.04.2016 03:05:
> On Wednesday, April 27, 2016 9:37:07 AM PDT Thorsten Leemhuis wrote:
>> Thorsten Leemhuis wrote on 26.04.2016 13:41:
>> > Lo! Below patch adds the PCI-ID for the Intel(R) Iris Graphics 550 
> (Skylake
>>> GT3e mobile) to libdrm. It afaics is the last piece that is missing to
>>> make those GPUs work properly, as Linux 4.6-rc(¹) and Mesa 11.2 already
>>> support it – 
> […]
>> Forget that patch -- a way better one was submitted weeks ago my Michal
>> already:
>> https://lists.freedesktop.org/archives/intel-gfx/2016-February/087819.html
> It looks like it fell through the cracks.  Roland just mentioned this on
> IRC...I've reviewed and pushed the patch to master.  I'm also making a
> release.

Many thx. Side note, while at it: I think this linux-drm patch from
Michał fell through the cracks, too:
https://lists.freedesktop.org/archives/intel-gfx/2016-February/087855.html

Whole story:  That libdrm patch you applied contained this line:

+#define PCI_CHIP_SKYLAKE_SRV_GT3 0x192D

This id for the Iris Graphics P555 is also present in Mesa master
i965(¹), but missing in Linux master afaics:
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/include/drm/i915_pciids.h#n279
And it's not in drm-intel-next either afaics:
https://cgit.freedesktop.org/drm-intel/tree/include/drm/i915_pciids.h?h=drm-intel-next#n279

CU, knurd

(¹)
https://cgit.freedesktop.org/mesa/mesa/tree/include/pci_ids/i965_pci_ids.h#n132