Messages in this thread | | | Date | Fri, 28 Feb 2020 10:25:56 +0000 | From | Andre Przywara <> | Subject | Re: [RFC PATCH 06/11] iommu: arm-smmu: Remove Calxeda secure mode quirk |
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On Fri, 28 Feb 2020 10:04:47 +0000 Will Deacon <will@kernel.org> wrote:
Hi,
> On Tue, Feb 25, 2020 at 04:01:54PM -0600, Rob Herring wrote: > > On Tue, Feb 18, 2020 at 11:20 AM Will Deacon <will@kernel.org> wrote: > > > > > > On Tue, Feb 18, 2020 at 11:13:16AM -0600, Rob Herring wrote: > > > > Cc: Will Deacon <will@kernel.org> > > > > Cc: Robin Murphy <robin.murphy@arm.com> > > > > Cc: Joerg Roedel <joro@8bytes.org> > > > > Cc: iommu@lists.linux-foundation.org > > > > Signed-off-by: Rob Herring <robh@kernel.org> > > > > --- > > > > Do not apply yet. > > > > > > Pleeeeease? ;) > > > > > > > drivers/iommu/arm-smmu-impl.c | 43 ----------------------------------- > > > > 1 file changed, 43 deletions(-) > > > > > > Yes, I'm happy to get rid of this. Sadly, I don't think we can remove > > > anything from 'struct arm_smmu_impl' because most implementations fall > > > just short of perfect. > > > > > > Anyway, let me know when I can push the button and I'll queue this in > > > the arm-smmu tree. > > > > Seems we're leaving the platform support for now, but I think we never > > actually enabled SMMU support. It's not in the dts either in mainline > > nor the version I have which should be close to what shipped in > > firmware. So as long as Andre agrees, this one is good to apply. > > Andre? Can I queue this one for 5.7, please?
I was wondering how much of a pain it is to keep it in? AFAICS there are other users of the "impl" indirection. If those goes away, I would be happy to let Calxeda go. But Eric had the magic DT nodes to get the SMMU working, and I used that before, with updating the DT either on flash or dynamically via U-Boot.
So I don't know exactly *how* desperate you are with removing this, or if there are other reasons than "negative diffstat", but if possible I would like to keep it in.
Cheers, Andre.
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