linux-kernel - Re: [PATCH 19/28] gpu/drm: remove the powerpc hack in drm_legacy_sg

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Date:   Fri, 10 Apr 2020 10:11:02 +0200
From:   Daniel Vetter <daniel@...ll.ch>
To:     Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc:     Christoph Hellwig <hch@....de>,
        Andrew Morton <akpm@...ux-foundation.org>,
        "K. Y. Srinivasan" <kys@...rosoft.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        Wei Liu <wei.liu@...nel.org>, X86 ML <x86@...nel.org>,
        David Airlie <airlied@...ux.ie>,
        Laura Abbott <labbott@...hat.com>,
        Sumit Semwal <sumit.semwal@...aro.org>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Minchan Kim <minchan@...nel.org>,
        Nitin Gupta <ngupta@...are.org>,
        Robin Murphy <robin.murphy@....com>,
        Christophe Leroy <christophe.leroy@....fr>,
        Peter Zijlstra <peterz@...radead.org>,
        linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
        linux-hyperv@...r.kernel.org,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        "moderated list:DMA BUFFER SHARING FRAMEWORK" 
        <linaro-mm-sig@...ts.linaro.org>,
        "open list:GENERIC INCLUDE/A..." <linux-arch@...r.kernel.org>,
        Linux MM <linux-mm@...ck.org>,
        "list@....net:IOMMU DRIVERS <iommu@...ts.linux-foundation.org>, Joerg
        Roedel <joro@...tes.org>," <iommu@...ts.linux-foundation.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        linux-s390@...r.kernel.org, bpf <bpf@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 19/28] gpu/drm: remove the powerpc hack in drm_legacy_sg_alloc

On Fri, Apr 10, 2020 at 12:57 AM Benjamin Herrenschmidt
<benh@...nel.crashing.org> wrote:
>
> On Thu, 2020-04-09 at 11:41 +0200, Daniel Vetter wrote:
> > Now if these boxes didn't ever have agp then I think we can get away
> > with deleting this, since we've already deleted the legacy radeon
> > driver. And that one used vmalloc for everything. The new kms one does
> > use the dma-api if the gpu isn't connected through agp
>
> Definitely no AGP there.

Ah in that case I think we can be sure that this code is dead.

Acked-by: Daniel Vetter <daniel.vetter@...ll.ch>

Cheers, Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch