Re: [git pull] drm fixes + one missed next for 5.16-rc1

From: Thomas Hellström
Date: Mon Nov 15 2021 - 02:19:32 EST



On 11/14/21 22:19, Linus Torvalds wrote:
On Sun, Nov 14, 2021 at 1:00 PM Dave Airlie <airlied@xxxxxxxxx> wrote:
i915 will no longer be x86-64 only in theory, since Intel now produces
PCIe graphics cards using the same hw designs.
Well, at least in my tree, it still has the "depends on X86", along
with several other x86-only things (like "select INTEL_GTT", which is
also x86-only)

So by the time that non-x86 theory becomes reality, hopefully the i915
people will also have figured out how to do the cache flushing
properly.

And hopefully that "do it properly" ends up being simply that the
particular configuration that ends up being portable simply doesn't
need to do it at all and can statically just not build it,
sidestepping the issue entirely.

Fingers crossed.

For non-x86 / discrete graphics, plan is only coherent mappings, although the "Just not build it" part hasn't been properly figured out yet I guess. But point taken.

Thanks,

/Thomas