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SubjectRe: [PATCH 1/1] drm/i915: remove unused IO_TLB_SEGPAGES which should be defined by swiotlb
Date
Quoting Dongli Zhang (2019-05-21 05:40:39)
> This patch removes IO_TLB_SEGPAGES which is no longer used since
> commit 5584f1b1d73e ("drm/i915: fix i915 running as dom0 under Xen").
>
> As the define of both IO_TLB_SEGSIZE and IO_TLB_SHIFT are from swiotlb,
> IO_TLB_SEGPAGES should be defined on swiotlb side if it is required in the
> future.

It would be wise to refer to

commit 5584f1b1d73e9cc95092734c316e467c6c4468f9
Author: Juergen Gross <jgross@suse.com>
Date: Thu Feb 2 10:47:11 2017 +0100

drm/i915: fix i915 running as dom0 under Xen

so the reader can have the history to trawl through.

References: 5584f1b1d73e ("drm/i915: fix i915 running as dom0 under Xen")
> Signed-off-by: Dongli Zhang <dongli.zhang@oracle.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
-Chris

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