search for: iommu_group_add_device

From: Joerg Roedel <jroedel at suse.de> After the previous changes the iommu group may not have a default domain when iommu_group_add_device() is called. With no default domain iommu_group_create_direct_mappings() will do nothing and no direct mappings will be created. Rename iommu_group_create_direct_mappings() to iommu_create_device_direct_mappings() to better reflect that the function creates direct mappings only for one device and...

...u_group_alloc_default_domain(dev->bus, group, type); +} + /** * iommu_group_get_for_dev - Find or create the IOMMU group for a device * @dev: target device @@ -1491,16 +1521,26 @@ struct iommu_group *iommu_group_get_for_dev(struct device *dev) if (IS_ERR(group)) return group; + ret = iommu_group_add_device(group, dev); + if (ret) + goto out_put_group; + /* * Try to allocate a default domain - needs support from the * IOMMU driver. There are still some drivers which don't support - * default domains, so the return value is not yet checked. + * default domains, so the return value is not...

...default_domain = dom; - if (!group->domain) - group->domain = dom; - - if (dom && !iommu_dma_strict) { - int attr = 1; - iommu_domain_set_attr(dom, - DOMAIN_ATTR_DMA_USE_FLUSH_QUEUE, - &attr); - } - } + iommu_alloc_default_domain(dev, group); ret = iommu_group_add_device(group, dev); - if (ret) { - iommu_group_put(group); - return ERR_PTR(ret); - } + if (ret) + goto out_put_group; return group; + +out_put_group: + iommu_group_put(group); + + return ERR_PTR(ret); } EXPORT_SYMBOL(iommu_group_get_for_dev); -- 2.17.1

...default_domain = dom; - if (!group->domain) - group->domain = dom; - - if (dom && !iommu_dma_strict) { - int attr = 1; - iommu_domain_set_attr(dom, - DOMAIN_ATTR_DMA_USE_FLUSH_QUEUE, - &attr); - } - } + iommu_alloc_default_domain(dev, group); ret = iommu_group_add_device(group, dev); - if (ret) { - iommu_group_put(group); - return ERR_PTR(ret); - } + if (ret) + goto out_put_group; return group; + +out_put_group: + iommu_group_put(group); + + return ERR_PTR(ret); } EXPORT_SYMBOL(iommu_group_get_for_dev); -- 2.17.1

On Tue, May 05, 2020 at 03:00:04PM +0530, Bharat Bhushan wrote: > Different endpoint can support different page size, probe > endpoint if it supports specific page size otherwise use > global page sizes. > > Signed-off-by: Bharat Bhushan <bbhushan2 at marvell.com> > --- > v4->v5: > - Rebase to Linux v5.7-rc4 > > v3->v4: > - Fix whitespace error >

...ti-device groups, but we have to call into it - * successfully (and not just rely on a normal IOMMU API attach - * here) in order to set the correct DMA API ops on @dev. - */ - group = iommu_group_alloc(); - if (IS_ERR(group)) - return PTR_ERR(group); + data = dev_iommu_priv_get(dev); - err = iommu_group_add_device(group, dev); - iommu_group_put(group); - if (err) - return err; + return &data->iommu; +} - data = dev_iommu_priv_get(dev); +static void mtk_iommu_probe_finalize(struct device *dev) +{ + struct dma_iommu_mapping *mtk_mapping; + struct mtk_iommu_data *data; + int err; + + data = dev...

...ault domain allocation to iommu_probe_device() iommu: Keep a list of allocated groups in __iommu_probe_device() iommu: Move new probe_device path to separate function iommu: Split off default domain allocation from group assignment iommu: Move iommu_group_create_direct_mappings() out of iommu_group_add_device() iommu: Export bus_iommu_probe() and make is safe for re-probing iommu/amd: Remove dev_data->passthrough iommu/amd: Convert to probe/release_device() call-backs iommu/vt-d: Convert to probe/release_device() call-backs iommu/arm-smmu: Convert to probe/release_device() call-backs iomm...

...ault domain allocation to iommu_probe_device() iommu: Keep a list of allocated groups in __iommu_probe_device() iommu: Move new probe_device path to separate function iommu: Split off default domain allocation from group assignment iommu: Move iommu_group_create_direct_mappings() out of iommu_group_add_device() iommu: Export bus_iommu_probe() and make is safe for re-probing iommu/amd: Remove dev_data->passthrough iommu/amd: Convert to probe/release_device() call-backs iommu/vt-d: Convert to probe/release_device() call-backs iommu/arm-smmu: Convert to probe/release_device() call-backs iomm...

...ault domain allocation to iommu_probe_device() iommu: Keep a list of allocated groups in __iommu_probe_device() iommu: Move new probe_device path to separate function iommu: Split off default domain allocation from group assignment iommu: Move iommu_group_create_direct_mappings() out of iommu_group_add_device() iommu: Export bus_iommu_probe() and make is safe for re-probing iommu/amd: Remove dev_data->passthrough iommu/amd: Convert to probe/release_device() call-backs iommu/vt-d: Convert to probe/release_device() call-backs iommu/arm-smmu: Convert to probe/release_device() call-backs iomm...

...ault domain allocation to iommu_probe_device() iommu: Keep a list of allocated groups in __iommu_probe_device() iommu: Move new probe_device path to separate function iommu: Split off default domain allocation from group assignment iommu: Move iommu_group_create_direct_mappings() out of iommu_group_add_device() iommu: Export bus_iommu_probe() and make is safe for re-probing iommu/amd: Remove dev_data->passthrough iommu/amd: Convert to probe/release_device() call-backs iommu/vt-d: Convert to probe/release_device() call-backs iommu/arm-smmu: Store device instead of group in arm_smmu_s2cr io...

...ault domain allocation to iommu_probe_device() iommu: Keep a list of allocated groups in __iommu_probe_device() iommu: Move new probe_device path to separate function iommu: Split off default domain allocation from group assignment iommu: Move iommu_group_create_direct_mappings() out of iommu_group_add_device() iommu: Export bus_iommu_probe() and make is safe for re-probing iommu/amd: Remove dev_data->passthrough iommu/amd: Convert to probe/release_device() call-backs iommu/vt-d: Convert to probe/release_device() call-backs iommu/arm-smmu: Store device instead of group in arm_smmu_s2cr io...