diff options
| author | Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> | 2022-07-06 13:38:06 +0200 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2022-07-07 09:37:43 +0200 |
| commit | 9873ae6e944d2e6f939ab81b25b2be7f0ee92d18 (patch) | |
| tree | 2d5c74da306af63e2465d4e8fb6b3976fa8643d5 /drivers | |
| parent | iommu/amd: Convert to use rlookup_amd_iommu helper function (diff) | |
| download | linux-9873ae6e944d2e6f939ab81b25b2be7f0ee92d18.tar.xz linux-9873ae6e944d2e6f939ab81b25b2be7f0ee92d18.zip | |
iommu/amd: Update irq_remapping_alloc to use IOMMU lookup helper function
To allow IOMMU rlookup using both PCI segment and device ID.
Co-developed-by: Vasant Hegde <vasant.hegde@amd.com>
Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Link: https://lore.kernel.org/r/20220706113825.25582-17-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/iommu/amd/iommu.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c index 19db4d54c337..5e4648cadff9 100644 --- a/drivers/iommu/amd/iommu.c +++ b/drivers/iommu/amd/iommu.c @@ -3246,8 +3246,9 @@ static int irq_remapping_alloc(struct irq_domain *domain, unsigned int virq, struct irq_alloc_info *info = arg; struct irq_data *irq_data; struct amd_ir_data *data = NULL; + struct amd_iommu *iommu; struct irq_cfg *cfg; - int i, ret, devid; + int i, ret, devid, seg, sbdf; int index; if (!info) @@ -3263,8 +3264,14 @@ static int irq_remapping_alloc(struct irq_domain *domain, unsigned int virq, if (info->type == X86_IRQ_ALLOC_TYPE_PCI_MSI) info->flags &= ~X86_IRQ_ALLOC_CONTIGUOUS_VECTORS; - devid = get_devid(info); - if (devid < 0) + sbdf = get_devid(info); + if (sbdf < 0) + return -EINVAL; + + seg = PCI_SBDF_TO_SEGID(sbdf); + devid = PCI_SBDF_TO_DEVID(sbdf); + iommu = __rlookup_amd_iommu(seg, devid); + if (!iommu) return -EINVAL; ret = irq_domain_alloc_irqs_parent(domain, virq, nr_irqs, arg); @@ -3273,7 +3280,6 @@ static int irq_remapping_alloc(struct irq_domain *domain, unsigned int virq, if (info->type == X86_IRQ_ALLOC_TYPE_IOAPIC) { struct irq_remap_table *table; - struct amd_iommu *iommu; table = alloc_irq_table(devid, NULL); if (table) { @@ -3283,7 +3289,6 @@ static int irq_remapping_alloc(struct irq_domain *domain, unsigned int virq, * interrupts. */ table->min_index = 32; - iommu = amd_iommu_rlookup_table[devid]; for (i = 0; i < 32; ++i) iommu->irte_ops->set_allocated(table, i); } |