Author: br Date: Fri Jul 17 14:51:51 2020 New Revision: 363274 URL: https://svnweb.freebsd.org/changeset/base/363274
Log: Add acpi_iort_map_pci_smmuv3(). This new function allows us to find the SMMU instance assigned for a particular PCI RID. Reviewed by: andrew Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D25687 Modified: head/sys/arm64/acpica/acpi_iort.c head/sys/dev/acpica/acpivar.h Modified: head/sys/arm64/acpica/acpi_iort.c ============================================================================== --- head/sys/arm64/acpica/acpi_iort.c Fri Jul 17 14:45:16 2020 (r363273) +++ head/sys/arm64/acpica/acpi_iort.c Fri Jul 17 14:51:51 2020 (r363274) @@ -160,7 +160,7 @@ iort_entry_lookup(struct iort_node *node, u_int id, u_ if (i == node->nentries) return (NULL); if ((entry->flags & ACPI_IORT_ID_SINGLE_MAPPING) == 0) - *outid = entry->outbase + (id - entry->base); + *outid = entry->outbase + (id - entry->base); else *outid = entry->outbase; return (entry->out_node); @@ -562,5 +562,24 @@ acpi_iort_map_pci_msi(u_int seg, u_int rid, u_int *xre /* return first node, we don't handle more than that now. */ *xref = node->entries.its[0].xref; + return (0); +} + +int +acpi_iort_map_pci_smmuv3(u_int seg, u_int rid, u_int *xref, u_int *sid) +{ + ACPI_IORT_SMMU_V3 *smmu; + struct iort_node *node; + + node = iort_pci_rc_map(seg, rid, ACPI_IORT_NODE_SMMU_V3, sid); + if (node == NULL) + return (ENOENT); + + /* This should be an SMMU node. */ + KASSERT(node->type == ACPI_IORT_NODE_SMMU_V3, ("bad node")); + + smmu = (ACPI_IORT_SMMU_V3 *)&node->data.smmu_v3; + *xref = smmu->BaseAddress; + return (0); } Modified: head/sys/dev/acpica/acpivar.h ============================================================================== --- head/sys/dev/acpica/acpivar.h Fri Jul 17 14:45:16 2020 (r363273) +++ head/sys/dev/acpica/acpivar.h Fri Jul 17 14:51:51 2020 (r363274) @@ -556,6 +556,7 @@ int acpi_get_domain(device_t dev, device_t child, int * ARM specific ACPI interfaces, relating to IORT table. */ int acpi_iort_map_pci_msi(u_int seg, u_int rid, u_int *xref, u_int *devid); +int acpi_iort_map_pci_smmuv3(u_int seg, u_int rid, u_int *xref, u_int *devid); int acpi_iort_its_lookup(u_int its_id, u_int *xref, int *pxm); #endif #endif /* _KERNEL */ _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
