diff options
Diffstat (limited to 'drivers/iommu/amd/iommu.c')
| -rw-r--r-- | drivers/iommu/amd/iommu.c | 38 |
1 files changed, 10 insertions, 28 deletions
diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c index 4a314647d1f7..12d6844128f9 100644 --- a/drivers/iommu/amd/iommu.c +++ b/drivers/iommu/amd/iommu.c @@ -3702,44 +3702,26 @@ int amd_iommu_create_irq_domain(struct amd_iommu *iommu) int amd_iommu_update_ga(int cpu, bool is_run, void *data) { - unsigned long flags; - struct amd_iommu *iommu; - struct irq_remap_table *table; struct amd_ir_data *ir_data = (struct amd_ir_data *)data; - int devid = ir_data->irq_2_irte.devid; struct irte_ga *entry = (struct irte_ga *) ir_data->entry; - struct irte_ga *ref = (struct irte_ga *) ir_data->ref; if (!AMD_IOMMU_GUEST_IR_VAPIC(amd_iommu_guest_ir) || - !ref || !entry || !entry->lo.fields_vapic.guest_mode) + !entry || !entry->lo.fields_vapic.guest_mode) return 0; - iommu = ir_data->iommu; - if (!iommu) - return -ENODEV; - - table = get_irq_table(iommu, devid); - if (!table) + if (!ir_data->iommu) return -ENODEV; - raw_spin_lock_irqsave(&table->lock, flags); - - if (ref->lo.fields_vapic.guest_mode) { - if (cpu >= 0) { - ref->lo.fields_vapic.destination = - APICID_TO_IRTE_DEST_LO(cpu); - ref->hi.fields.destination = - APICID_TO_IRTE_DEST_HI(cpu); - } - ref->lo.fields_vapic.is_run = is_run; - barrier(); + if (cpu >= 0) { + entry->lo.fields_vapic.destination = + APICID_TO_IRTE_DEST_LO(cpu); + entry->hi.fields.destination = + APICID_TO_IRTE_DEST_HI(cpu); } + entry->lo.fields_vapic.is_run = is_run; - raw_spin_unlock_irqrestore(&table->lock, flags); - - iommu_flush_irt(iommu, devid); - iommu_completion_wait(iommu); - return 0; + return modify_irte_ga(ir_data->iommu, ir_data->irq_2_irte.devid, + ir_data->irq_2_irte.index, entry, ir_data); } EXPORT_SYMBOL(amd_iommu_update_ga); #endif |