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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, Aug 21, 2023 at 10:39:14PM +0800, Michael Shavit wrote: > > > > > (on a loop over every smmu the domain in arm_smmu_mmu_notifier_get is > > > > > attached to, which just at a glance looks headache inducing because of > > > > > sva's piggybacking on the rid domain.) > > > > > > > > Not every smmu, just the one you are *currently* attaching to. We > > > > don't care if the *other* smmu's have different ASIDs, maybe they are > > > > not using BTM, or won't use SVA. > > > > > > I mean because the domain in arm_smmu_mmu_notifier_get is the RID > > > domain (not the SVA domain, same issue we discussed in previous > > > thread) , which can be attached to multiple SMMUs. > > > > Oh that is totally nonsensical. I expect you will need to fix that > > sooner than later. Once the CD table is moved and there is a proper > > way to track the PASID it should not be needed. It shouldn't fall into > > the decision making about where to put the ASID xarray. > > Right I got a bit of a chicken and egg problem with all these series. Yes, I'm not surprised to hear this Still, it would nice to move forward without going in a weird direction too much. Once the CD table is moved to the master what do you think is blocking fixing up the SVA stuff to not rely on a RID domain? Jason _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel