From 9873ae6e944d2e6f939ab81b25b2be7f0ee92d18 Mon Sep 17 00:00:00 2001 From: Suravee Suthikulpanit Date: Wed, 6 Jul 2022 17:08:06 +0530 Subject: [PATCH] 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 Signed-off-by: Vasant Hegde Signed-off-by: Suravee Suthikulpanit Link: https://lore.kernel.org/r/20220706113825.25582-17-vasant.hegde@amd.com Signed-off-by: Joerg Roedel --- drivers/iommu/amd/iommu.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c index 19db4d5..5e4648c 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); } -- 2.7.4