Displaying 2 results from an estimated 2 matches for "iort_pci_rc_supports_ats".
2020 Mar 06
1
[PATCH 00/14] iommu: Move iommu_fwspec out of 'struct device'
...> pointer dereference and panic at boot:
I think that's because patch 01/14 move the fwspec access too early. In
err = pci_for_each_dma_alias(to_pci_dev(dev),
iort_pci_iommu_init, &info);
if (!err && iort_pci_rc_supports_ats(node))
dev->iommu_fwspec->flags |= IOMMU_FWSPEC_PCI_RC_ATS;
the iommu_fwspec is only valid if iort_pci_iommu_init() initialized it
successfully, if err == 0. The following might fix it:
diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
index 0e981d7f...
2020 Mar 10
15
[PATCH 00/15 v2] iommu: Move iommu_fwspec out of 'struct device'
Hi,
here is a patch-set to rename iommu_param to dev_iommu and
establish it as a struct for generic per-device iommu-data.
Also move the iommu_fwspec pointer from struct device into
dev_iommu to have less iommu-related pointers in struct
device.
The bigger part of this patch-set moves the iommu_priv
pointer from struct iommu_fwspec to dev_iommu, making is
usable for iommu-drivers which do not