Messages in this thread | | | Date | Wed, 3 May 2023 14:32:15 +0800 | Subject | Re: [PATCH v5 3/7] iommu: Move global PASID allocation from SVA to core | From | Baolu Lu <> |
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On 4/28/23 1:49 AM, Jacob Pan wrote: > +ioasid_t iommu_alloc_global_pasid_dev(struct device *dev) > +{ > + int ret; > + ioasid_t max; > + > + max = dev_iommu_get_max_pasids(dev);
Perhaps you can use dev->iommu->max_pasids. It's static, so no need to recalculate it.
> + ret = ida_alloc_range(&iommu_global_pasid_ida, IOMMU_DEF_RID_PASID + 1, max, GFP_KERNEL); > + if (ret < 0) > + return IOMMU_PASID_INVALID; > + > + return ret; > +} > +EXPORT_SYMBOL_GPL(iommu_alloc_global_pasid_dev);
Best regards, baolu
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