Messages in this thread | | | Subject | Re: [PATCHv3 3/6] iommu/arm-smmu: Implement iommu_ops->def_domain_type call-back | From | Robin Murphy <> | Date | Mon, 20 Apr 2020 17:59:45 +0100 |
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On 2020-04-20 5:42 pm, Sai Prakash Ranjan wrote: > Implement the new def_domain_type call-back for the ARM > SMMU driver. We need this to support requesting the domain > type by the client devices.
Modulo any further changes to the default domain rework,
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
> Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org> > --- > drivers/iommu/arm-smmu.c | 12 ++++++++++++ > 1 file changed, 12 insertions(+) > > diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c > index e622f4e33379..b345a86085ce 100644 > --- a/drivers/iommu/arm-smmu.c > +++ b/drivers/iommu/arm-smmu.c > @@ -1609,6 +1609,17 @@ static void arm_smmu_get_resv_regions(struct device *dev, > iommu_dma_get_resv_regions(dev, head); > } > > +static int arm_smmu_def_domain_type(struct device *dev) > +{ > + struct arm_smmu_master_cfg *cfg = dev_iommu_priv_get(dev); > + const struct arm_smmu_impl *impl = cfg->smmu->impl; > + > + if (impl && impl->def_domain_type) > + return impl->def_domain_type(dev); > + > + return 0; > +} > + > static struct iommu_ops arm_smmu_ops = { > .capable = arm_smmu_capable, > .domain_alloc = arm_smmu_domain_alloc, > @@ -1627,6 +1638,7 @@ static struct iommu_ops arm_smmu_ops = { > .of_xlate = arm_smmu_of_xlate, > .get_resv_regions = arm_smmu_get_resv_regions, > .put_resv_regions = generic_iommu_put_resv_regions, > + .def_domain_type = arm_smmu_def_domain_type, > .pgsize_bitmap = -1UL, /* Restricted during device attach */ > }; > >
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