From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Jiang Liu To: Bjorn Helgaas , Benjamin Herrenschmidt , Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , "Rafael J. Wysocki" , Randy Dunlap , Yinghai Lu , Borislav Petkov , Dimitri Sivanich , Joerg Roedel Cc: Jiang Liu , Konrad Rzeszutek Wilk , David Cohen , Sander Eikelenboom , David Vrabel , Andrew Morton , Tony Luck , Greg Kroah-Hartman , x86@kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-acpi@vger.kernel.org, iommu@lists.linux-foundation.org Subject: [Patch Part1 v7 16/38] irq_remapping/amd: Clean up unused MSI related code Date: Tue, 20 Jan 2015 11:08:19 +0800 Message-Id: <1421723321-8386-17-git-send-email-jiang.liu@linux.intel.com> In-Reply-To: <1421723321-8386-1-git-send-email-jiang.liu@linux.intel.com> References: <1421723321-8386-1-git-send-email-jiang.liu@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: Now MSI interrupt has been converted to new hierarchy irqdomain interfaces, so kill legacy MSI related code. Signed-off-by: Jiang Liu Acked-by: Joerg Roedel Cc: Konrad Rzeszutek Wilk Cc: Tony Luck Cc: Greg Kroah-Hartman Cc: iommu@lists.linux-foundation.org Cc: Bjorn Helgaas Cc: Benjamin Herrenschmidt Cc: Rafael J. Wysocki Cc: Randy Dunlap Cc: Yinghai Lu Cc: Borislav Petkov Cc: Joerg Roedel Link: http://lkml.kernel.org/r/1416894816-23245-17-git-send-email-jiang.liu@linux.intel.com Signed-off-by: Thomas Gleixner --- drivers/iommu/amd_iommu.c | 115 +-------------------------------------------- 1 file changed, 2 insertions(+), 113 deletions(-) diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 83ed2fdad4ef..c3efde454220 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -3961,8 +3961,7 @@ out_unlock: return table; } -static int alloc_irq_index(struct irq_cfg *cfg, struct irq_2_irte *irte_info, - u16 devid, int count) +static int alloc_irq_index(u16 devid, int count) { struct irq_remap_table *table; unsigned long flags; @@ -3988,11 +3987,6 @@ static int alloc_irq_index(struct irq_cfg *cfg, struct irq_2_irte *irte_info, table->table[index - c + 1] = IRTE_ALLOCATED; index -= count - 1; - - cfg->remapped = 1; - irte_info->devid = devid; - irte_info->index = index; - goto out; } } @@ -4192,106 +4186,6 @@ static int free_irq(int irq) return 0; } -static void compose_msi_msg(struct pci_dev *pdev, - unsigned int irq, unsigned int dest, - struct msi_msg *msg, u8 hpet_id) -{ - struct irq_2_irte *irte_info; - struct irq_cfg *cfg; - union irte irte; - - cfg = irq_cfg(irq); - if (!cfg) - return; - - irte_info = &cfg->irq_2_irte; - - irte.val = 0; - irte.fields.vector = cfg->vector; - irte.fields.int_type = apic->irq_delivery_mode; - irte.fields.destination = dest; - irte.fields.dm = apic->irq_dest_mode; - irte.fields.valid = 1; - - modify_irte(irte_info->devid, irte_info->index, irte); - - msg->address_hi = MSI_ADDR_BASE_HI; - msg->address_lo = MSI_ADDR_BASE_LO; - msg->data = irte_info->index; -} - -static int msi_alloc_irq(struct pci_dev *pdev, int irq, int nvec) -{ - struct irq_cfg *cfg; - int index; - u16 devid; - - if (!pdev) - return -EINVAL; - - cfg = irq_cfg(irq); - if (!cfg) - return -EINVAL; - - devid = get_device_id(&pdev->dev); - index = alloc_irq_index(cfg, &cfg->irq_2_irte, devid, nvec); - - return index < 0 ? MAX_IRQS_PER_TABLE : index; -} - -static int msi_setup_irq(struct pci_dev *pdev, unsigned int irq, - int index, int offset) -{ - struct irq_2_irte *irte_info; - struct irq_cfg *cfg; - u16 devid; - - if (!pdev) - return -EINVAL; - - cfg = irq_cfg(irq); - if (!cfg) - return -EINVAL; - - if (index >= MAX_IRQS_PER_TABLE) - return 0; - - devid = get_device_id(&pdev->dev); - irte_info = &cfg->irq_2_irte; - - cfg->remapped = 1; - irte_info->devid = devid; - irte_info->index = index + offset; - - return 0; -} - -static int alloc_hpet_msi(unsigned int irq, unsigned int id) -{ - struct irq_2_irte *irte_info; - struct irq_cfg *cfg; - int index, devid; - - cfg = irq_cfg(irq); - if (!cfg) - return -EINVAL; - - irte_info = &cfg->irq_2_irte; - devid = get_hpet_devid(id); - if (devid < 0) - return devid; - - index = alloc_irq_index(cfg, &cfg->irq_2_irte, devid, 1); - if (index < 0) - return index; - - cfg->remapped = 1; - irte_info->devid = devid; - irte_info->index = index; - - return 0; -} - static int get_devid(struct irq_alloc_info *info) { int devid = -1; @@ -4367,10 +4261,6 @@ struct irq_remap_ops amd_iommu_irq_ops = { .setup_ioapic_entry = setup_ioapic_entry, .set_affinity = set_affinity, .free_irq = free_irq, - .compose_msi_msg = compose_msi_msg, - .msi_alloc_irq = msi_alloc_irq, - .msi_setup_irq = msi_setup_irq, - .alloc_hpet_msi = alloc_hpet_msi, .get_ir_irq_domain = get_ir_irq_domain, .get_irq_domain = get_irq_domain, }; @@ -4468,8 +4358,7 @@ static int irq_remapping_alloc(struct irq_domain *domain, unsigned int virq, else ret = -ENOMEM; } else { - cfg = irq_cfg(virq); - index = alloc_irq_index(cfg, &data->irq_2_irte, devid, nr_irqs); + index = alloc_irq_index(devid, nr_irqs); } if (index < 0) { pr_warn("Failed to allocate IRTE\n"); -- 1.7.10.4