From: Stephen Rothwell <sfr@canb.auug.org.au>
To: Joerg Roedel <joro@8bytes.org>, Dave Airlie <airlied@linux.ie>
Cc: Rob Clark <robdclark@gmail.com>,
Sean Paul <seanpaul@chromium.org>,
DRI <dri-devel@lists.freedesktop.org>,
Jordan Crouse <jcrouse@codeaurora.org>,
Tom Murphy <murphyt7@tcd.ie>,
Linux Next Mailing List <linux-next@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: linux-next: build failure after merge of the iommu tree
Date: Tue, 13 Oct 2020 18:31:07 +1100 [thread overview]
Message-ID: <20201013183107.65c15fd5@canb.auug.org.au> (raw)
In-Reply-To: <20200921140901.16adf8c2@canb.auug.org.au>
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Hi all,
On Mon, 21 Sep 2020 14:09:01 +1000 Stephen Rothwell <sfr@canb.auug.org.au> wrote:
>
> After merging the iommu tree, today's linux-next build (arm
> multi_v7_defconfig) failed like this:
>
> drivers/gpu/drm/msm/msm_iommu.c: In function 'msm_iommu_pagetable_unmap':
> drivers/gpu/drm/msm/msm_iommu.c:46:2: error: implicit declaration of function 'iommu_flush_tlb_all'; did you mean 'iommu_flush_iotlb_all'? [-Werror=implicit-function-declaration]
> 46 | iommu_flush_tlb_all(to_msm_iommu(pagetable->parent)->domain);
> | ^~~~~~~~~~~~~~~~~~~
> | iommu_flush_iotlb_all
>
> Caused by commit
>
> aae4c8e27bd7 ("iommu: Rename iommu_tlb_* functions to iommu_iotlb_*")
>
> interacting with commit
>
> b145c6e65eb0 ("drm/msm: Add support to create a local pagetable")
>
> from the drm-msm tree.
>
> I have applied the following merge fix patch. Someone will need to tell
> Linus about this fix up when the trees get merged.
>
> From: Stephen Rothwell <sfr@canb.auug.org.au>
> Date: Mon, 21 Sep 2020 14:04:14 +1000
> Subject: [PATCH] merge fix upt for iommu_flush_iotlb_all() rename
>
> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
> ---
> drivers/gpu/drm/msm/msm_iommu.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/msm_iommu.c b/drivers/gpu/drm/msm/msm_iommu.c
> index 3a83ffdb3b90..22ac7c692a81 100644
> --- a/drivers/gpu/drm/msm/msm_iommu.c
> +++ b/drivers/gpu/drm/msm/msm_iommu.c
> @@ -43,7 +43,7 @@ static int msm_iommu_pagetable_unmap(struct msm_mmu *mmu, u64 iova,
> size -= 4096;
> }
>
> - iommu_flush_tlb_all(to_msm_iommu(pagetable->parent)->domain);
> + iommu_flush_iotlb_all(to_msm_iommu(pagetable->parent)->domain);
>
> return (unmapped == size) ? 0 : -EINVAL;
> }
> @@ -199,7 +199,7 @@ struct msm_mmu *msm_iommu_pagetable_create(struct msm_mmu *parent)
>
> /*
> * TODO we would like each set of page tables to have a unique ASID
> - * to optimize TLB invalidation. But iommu_flush_tlb_all() will
> + * to optimize TLB invalidation. But iommu_flush_iotlb_all() will
> * end up flushing the ASID used for TTBR1 pagetables, which is not
> * what we want. So for now just use the same ASID as TTBR1.
> */
> --
> 2.28.0
This merge fix up is now needed when the iommu tree and the drm tree are merged.
--
Cheers,
Stephen Rothwell
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next prev parent reply other threads:[~2020-10-13 7:31 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-21 4:09 linux-next: build failure after merge of the iommu tree Stephen Rothwell
2020-10-13 7:31 ` Stephen Rothwell [this message]
2020-10-15 2:43 ` Stephen Rothwell
-- strict thread matches above, loose matches on Subject: below --
2021-10-12 3:46 Stephen Rothwell
2021-10-12 8:33 ` Marc Zyngier
2021-10-12 11:21 ` Lorenzo Pieralisi
2021-10-13 1:43 ` Bjorn Helgaas
2019-09-02 6:39 Stephen Rothwell
2019-09-02 14:03 ` Joerg Roedel
2019-09-02 14:26 ` Lendacky, Thomas
2019-09-03 5:28 ` Stephen Rothwell
2015-11-01 11:42 Stephen Rothwell
2015-11-01 15:14 ` Joerg Roedel
2015-11-02 0:15 ` Magnus Damm
2014-11-05 2:47 Stephen Rothwell
2014-11-05 11:16 ` Joerg Roedel
2014-07-08 4:02 Stephen Rothwell
2014-07-08 4:12 ` Alex Williamson
2014-07-08 11:20 ` Joerg Roedel
2011-12-15 4:40 Stephen Rothwell
2011-12-15 10:09 ` Joerg Roedel
2011-08-29 3:32 Stephen Rothwell
2011-08-29 5:11 ` Ohad Ben-Cohen
2011-08-29 10:42 ` Joerg Roedel
2011-08-29 8:36 ` Joerg Roedel
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