From: will.deacon@arm.com (Will Deacon)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v7 00/22] Generic DT bindings for PCI IOMMUs and ARM SMMU
Date: Mon, 19 Sep 2016 13:24:36 +0100 [thread overview]
Message-ID: <20160919122435.GD9005@arm.com> (raw)
In-Reply-To: <48f3bc10-3966-7d50-d070-7ec7f0946c92@redhat.com>
On Mon, Sep 19, 2016 at 02:13:45PM +0200, Auger Eric wrote:
> On 16/09/2016 18:18, Robin Murphy wrote:
> > What I probably will do, though, since we have the functionality in
> > place for the sake of the old binding, and I think there are other folks
> > who want PCI iommu-map support but would prefer not to bother with DMA
> > ops on the host, is add a command-line option to disable DMA domains
> > even for the generic bindings.
>
> Yes this would be a good thing I think. This series has an important
> impact on platforms which do not have smmu v3, where contexts are scarce
> HW resources.
Rather than disabling DMA domains entirely, we could specify a number
of contexts to reserve for other use (e.g. VFIO). It's a pity that these
options are global for the system, as opposed to per SMMU instance,
but I can't see a good way around that.
Will
next prev parent reply other threads:[~2016-09-19 12:24 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-12 16:13 [PATCH v7 00/22] Generic DT bindings for PCI IOMMUs and ARM SMMU Robin Murphy
2016-09-12 16:13 ` [PATCH v7 01/22] Docs: dt: add PCI IOMMU map bindings Robin Murphy
2016-09-12 16:13 ` [PATCH v7 02/22] of/irq: Break out msi-map lookup (again) Robin Murphy
2016-09-12 16:13 ` [PATCH v7 03/22] iommu/of: Handle iommu-map property for PCI Robin Murphy
2016-09-12 16:13 ` [PATCH v7 04/22] iommu: Introduce iommu_fwspec Robin Murphy
2016-09-13 9:54 ` [PATCH v7.1 " Robin Murphy
2016-09-12 16:13 ` [PATCH v7 05/22] Docs: dt: document ARM SMMUv3 generic binding usage Robin Murphy
2016-09-20 14:46 ` Rob Herring
2016-09-12 16:13 ` [PATCH v7 06/22] iommu/arm-smmu: Fall back to global bypass Robin Murphy
2016-09-12 16:13 ` [PATCH v7 07/22] iommu/arm-smmu: Implement of_xlate() for SMMUv3 Robin Murphy
2016-09-12 16:13 ` [PATCH v7 08/22] iommu/arm-smmu: Support non-PCI devices with SMMUv3 Robin Murphy
2016-09-12 16:13 ` [PATCH v7 09/22] iommu/arm-smmu: Set PRIVCFG in stage 1 STEs Robin Murphy
2016-09-12 16:13 ` [PATCH v7 10/22] iommu/arm-smmu: Handle stream IDs more dynamically Robin Murphy
2016-09-12 16:13 ` [PATCH v7 11/22] iommu/arm-smmu: Consolidate stream map entry state Robin Murphy
2016-09-12 16:13 ` [PATCH v7 12/22] iommu/arm-smmu: Keep track of S2CR state Robin Murphy
2016-09-12 16:13 ` [PATCH v7 13/22] iommu/arm-smmu: Refactor mmu-masters handling Robin Murphy
2016-09-14 14:21 ` [PATCH v7.1 " Robin Murphy
2016-09-12 16:13 ` [PATCH v7 14/22] iommu/arm-smmu: Streamline SMMU data lookups Robin Murphy
2016-09-12 16:13 ` [PATCH v7 15/22] iommu/arm-smmu: Add a stream map entry iterator Robin Murphy
2016-09-12 16:13 ` [PATCH v7 16/22] iommu/arm-smmu: Intelligent SMR allocation Robin Murphy
2016-09-12 16:13 ` [PATCH v7 17/22] iommu/arm-smmu: Convert to iommu_fwspec Robin Murphy
2016-09-12 16:13 ` [PATCH v7 18/22] Docs: dt: document ARM SMMU generic binding usage Robin Murphy
2016-09-12 16:13 ` [PATCH v7 19/22] iommu/arm-smmu: Wire up generic configuration support Robin Murphy
2016-09-14 14:26 ` [PATCH v7.1 " Robin Murphy
2016-09-12 16:13 ` [PATCH v7 20/22] iommu/arm-smmu: Set domain geometry Robin Murphy
2016-09-12 16:13 ` [PATCH v7 21/22] iommu/dma: Add support for mapping MSIs Robin Murphy
2016-10-05 7:00 ` Nipun Gupta
2016-10-05 9:55 ` Robin Murphy
2016-10-05 11:31 ` Nipun Gupta
2016-09-12 16:14 ` [PATCH v7 22/22] iommu/dma: Avoid PCI host bridge windows Robin Murphy
2016-09-14 10:55 ` Marek Szyprowski
2016-09-14 11:10 ` Robin Murphy
2016-09-14 12:35 ` Marek Szyprowski
2016-09-14 13:25 ` Robin Murphy
2016-09-15 7:08 ` Marek Szyprowski
2016-09-13 12:14 ` [PATCH v7 00/22] Generic DT bindings for PCI IOMMUs and ARM SMMU Auger Eric
2016-09-13 12:40 ` Robin Murphy
2016-09-13 12:57 ` Auger Eric
2016-09-14 8:41 ` Auger Eric
2016-09-14 9:20 ` Will Deacon
2016-09-14 9:35 ` Auger Eric
2016-09-14 10:35 ` Robin Murphy
2016-09-14 12:32 ` Auger Eric
2016-09-14 12:53 ` Robin Murphy
2016-09-15 9:29 ` Auger Eric
2016-09-15 10:15 ` Robin Murphy
2016-09-15 16:46 ` Auger Eric
2016-09-16 16:18 ` Robin Murphy
2016-09-19 12:13 ` Auger Eric
2016-09-19 12:24 ` Will Deacon [this message]
2016-09-19 12:41 ` Robin Murphy
2016-09-19 14:17 ` Will Deacon
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