[Intel-gfx] [PATCH] drm/i915: refuse to load on gen6+ without kms

Adam Jackson ajax at redhat.com
Mon Mar 26 22:06:10 CEST 2012


On Mon, 2012-03-26 at 21:33 +0200, Daniel Vetter wrote:

> As a first step refuse to load without kms on chips where userspace
> never supported ums. Now upstream hasn't supported ums on ilk, ever.
> But RHEL had the great idea to backport the kms support to their ums
> driver.

In RHEL5, yes.  Personally I'm okay with saying those people get to run
RHEL5 kernels too, but Linus might have stronger opinions I guess.

That said we really don't use kernel support for this.  Certainly
there's no acceleration on ILK.  The corresponding kernel patch appears
to do nothing more than add the PCI IDs to the AGP driver, and add
IS_IRONLAKE() to I915_NEED_GFX_HWS().

- ajax
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