Now MSI interrupt has been converted to new hierarchy irqdomain interfaces, so kill legacy MSI related code and interfaces.
Signed-off-by: Jiang Liu <jiang....@linux.intel.com> Cc: Konrad Rzeszutek Wilk <konrad.w...@oracle.com> Cc: Tony Luck <tony.l...@intel.com> Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org> Cc: io...@lists.linux-foundation.org Cc: Bjorn Helgaas <bhelg...@google.com> Cc: Benjamin Herrenschmidt <b...@kernel.crashing.org> Cc: Rafael J. Wysocki <r...@rjwysocki.net> Cc: Randy Dunlap <rdun...@infradead.org> Cc: Yinghai Lu <ying...@kernel.org> Cc: Borislav Petkov <b...@alien8.de> Cc: Joerg Roedel <j...@8bytes.org> Cc: Rafael J. Wysocki <rafael.j.wyso...@intel.com> Cc: Yijing Wang <wangyij...@huawei.com> Link: http://lkml.kernel.org/r/1416894816-23245-18-git-send-email-jiang....@linux.intel.com Signed-off-by: Thomas Gleixner <t...@linutronix.de> --- arch/x86/include/asm/irq_remapping.h | 13 --- arch/x86/include/asm/pci.h | 5 -- arch/x86/kernel/x86_init.c | 2 - drivers/iommu/irq_remapping.c | 151 ---------------------------------- drivers/iommu/irq_remapping.h | 14 ---- 5 files changed, 185 deletions(-) diff --git a/arch/x86/include/asm/irq_remapping.h b/arch/x86/include/asm/irq_remapping.h index 9bb2614dbe25..a6d0cca0d08f 100644 --- a/arch/x86/include/asm/irq_remapping.h +++ b/arch/x86/include/asm/irq_remapping.h @@ -48,10 +48,6 @@ extern int setup_ioapic_remapped_entry(int irq, int vector, struct io_apic_irq_attr *attr); extern void free_remapped_irq(int irq); -extern void compose_remapped_msi_msg(struct pci_dev *pdev, - unsigned int irq, unsigned int dest, - struct msi_msg *msg, u8 hpet_id); -extern int setup_hpet_msi_remapped(unsigned int irq, unsigned int id); extern void panic_if_irq_remap(const char *msg); extern bool setup_remapped_irq(int irq, struct irq_cfg *cfg, @@ -91,15 +87,6 @@ static inline int setup_ioapic_remapped_entry(int irq, return -ENODEV; } static inline void free_remapped_irq(int irq) { } -static inline void compose_remapped_msi_msg(struct pci_dev *pdev, - unsigned int irq, unsigned int dest, - struct msi_msg *msg, u8 hpet_id) -{ -} -static inline int setup_hpet_msi_remapped(unsigned int irq, unsigned int id) -{ - return -ENODEV; -} static inline void panic_if_irq_remap(const char *msg) { diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h index 4e370a5d8117..d8c80ff32e8c 100644 --- a/arch/x86/include/asm/pci.h +++ b/arch/x86/include/asm/pci.h @@ -96,15 +96,10 @@ extern void pci_iommu_alloc(void); #ifdef CONFIG_PCI_MSI /* implemented in arch/x86/kernel/apic/io_apic. */ struct msi_desc; -void native_compose_msi_msg(struct pci_dev *pdev, unsigned int irq, - unsigned int dest, struct msi_msg *msg, u8 hpet_id); int native_setup_msi_irqs(struct pci_dev *dev, int nvec, int type); void native_teardown_msi_irq(unsigned int irq); void native_restore_msi_irqs(struct pci_dev *dev); -int setup_msi_irq(struct pci_dev *dev, struct msi_desc *msidesc, - unsigned int irq_base, unsigned int irq_offset); #else -#define native_compose_msi_msg NULL #define native_setup_msi_irqs NULL #define native_teardown_msi_irq NULL #endif diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c index 234b0722de53..b094d691f2fe 100644 --- a/arch/x86/kernel/x86_init.c +++ b/arch/x86/kernel/x86_init.c @@ -111,11 +111,9 @@ EXPORT_SYMBOL_GPL(x86_platform); #if defined(CONFIG_PCI_MSI) struct x86_msi_ops x86_msi = { .setup_msi_irqs = native_setup_msi_irqs, - .compose_msi_msg = native_compose_msi_msg, .teardown_msi_irq = native_teardown_msi_irq, .teardown_msi_irqs = default_teardown_msi_irqs, .restore_msi_irqs = default_restore_msi_irqs, - .setup_hpet_msi = default_setup_hpet_msi, }; /* MSI arch specific hooks */ diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c index d77e3711c2aa..3eaa822c30a9 100644 --- a/drivers/iommu/irq_remapping.c +++ b/drivers/iommu/irq_remapping.c @@ -25,9 +25,6 @@ int no_x2apic_optout; static int disable_irq_remap; static struct irq_remap_ops *remap_ops; -static int msi_alloc_remapped_irq(struct pci_dev *pdev, int irq, int nvec); -static int msi_setup_remapped_irq(struct pci_dev *pdev, unsigned int irq, - int index, int sub_handle); static int set_remapped_irq_affinity(struct irq_data *data, const struct cpumask *mask, bool force); @@ -50,109 +47,6 @@ static void irq_remapping_disable_io_apic(void) disconnect_bsp_APIC(0); } -#ifndef CONFIG_GENERIC_IRQ_LEGACY_ALLOC_HWIRQ -static unsigned int irq_alloc_hwirqs(int cnt, int node) -{ - return irq_domain_alloc_irqs(NULL, -1, cnt, node, NULL); -} - -static void irq_free_hwirqs(unsigned int from, int cnt) -{ - irq_domain_free_irqs(from, cnt); -} -#endif - -static int do_setup_msi_irqs(struct pci_dev *dev, int nvec) -{ - int ret, sub_handle, nvec_pow2, index = 0; - unsigned int irq; - struct msi_desc *msidesc; - - msidesc = list_entry(dev->msi_list.next, struct msi_desc, list); - - irq = irq_alloc_hwirqs(nvec, dev_to_node(&dev->dev)); - if (irq == 0) - return -ENOSPC; - - nvec_pow2 = __roundup_pow_of_two(nvec); - for (sub_handle = 0; sub_handle < nvec; sub_handle++) { - if (!sub_handle) { - index = msi_alloc_remapped_irq(dev, irq, nvec_pow2); - if (index < 0) { - ret = index; - goto error; - } - } else { - ret = msi_setup_remapped_irq(dev, irq + sub_handle, - index, sub_handle); - if (ret < 0) - goto error; - } - ret = setup_msi_irq(dev, msidesc, irq, sub_handle); - if (ret < 0) - goto error; - } - return 0; - -error: - irq_free_hwirqs(irq, nvec); - - /* - * Restore altered MSI descriptor fields and prevent just destroyed - * IRQs from tearing down again in default_teardown_msi_irqs() - */ - msidesc->irq = 0; - - return ret; -} - -static int do_setup_msix_irqs(struct pci_dev *dev, int nvec) -{ - int node, ret, sub_handle, index = 0; - struct msi_desc *msidesc; - unsigned int irq; - - node = dev_to_node(&dev->dev); - sub_handle = 0; - - list_for_each_entry(msidesc, &dev->msi_list, list) { - - irq = irq_alloc_hwirqs(1, node); - if (irq == 0) - return -1; - - if (sub_handle == 0) - ret = index = msi_alloc_remapped_irq(dev, irq, nvec); - else - ret = msi_setup_remapped_irq(dev, irq, index, sub_handle); - - if (ret < 0) - goto error; - - ret = setup_msi_irq(dev, msidesc, irq, 0); - if (ret < 0) - goto error; - - sub_handle += 1; - irq += 1; - } - - return 0; - -error: - irq_free_hwirqs(irq, 1); - return ret; -} - -static int irq_remapping_setup_msi_irqs(struct pci_dev *dev, - int nvec, int type) -{ - if (type == PCI_CAP_ID_MSI) - return do_setup_msi_irqs(dev, nvec); - else - return do_setup_msix_irqs(dev, nvec); -} - static void eoi_ioapic_pin_remapped(int apic, int pin, int vector) { /* @@ -170,8 +64,6 @@ static void __init irq_remapping_modify_x86_ops(void) x86_io_apic_ops.set_affinity = set_remapped_irq_affinity; x86_io_apic_ops.setup_entry = setup_ioapic_remapped_entry; x86_io_apic_ops.eoi_ioapic_pin = eoi_ioapic_pin_remapped; - x86_msi.setup_hpet_msi = setup_hpet_msi_remapped; - x86_msi.compose_msi_msg = compose_remapped_msi_msg; } static __init int setup_nointremap(char *str) @@ -295,49 +187,6 @@ void free_remapped_irq(int irq) remap_ops->free_irq(irq); } -void compose_remapped_msi_msg(struct pci_dev *pdev, - unsigned int irq, unsigned int dest, - struct msi_msg *msg, u8 hpet_id) -{ - struct irq_cfg *cfg = irq_cfg(irq); - - if (!irq_remapped(cfg)) - native_compose_msi_msg(pdev, irq, dest, msg, hpet_id); - else if (remap_ops->compose_msi_msg) - remap_ops->compose_msi_msg(pdev, irq, dest, msg, hpet_id); -} - -static int msi_alloc_remapped_irq(struct pci_dev *pdev, int irq, int nvec) -{ - if (!remap_ops->msi_alloc_irq) - return -ENODEV; - - return remap_ops->msi_alloc_irq(pdev, irq, nvec); -} - -static int msi_setup_remapped_irq(struct pci_dev *pdev, unsigned int irq, - int index, int sub_handle) -{ - if (!remap_ops->msi_setup_irq) - return -ENODEV; - - return remap_ops->msi_setup_irq(pdev, irq, index, sub_handle); -} - -int setup_hpet_msi_remapped(unsigned int irq, unsigned int id) -{ - int ret; - - if (!remap_ops->alloc_hpet_msi) - return -ENODEV; - - ret = remap_ops->alloc_hpet_msi(irq, id); - if (ret) - return -EINVAL; - - return default_setup_hpet_msi(irq, id); -} - void panic_if_irq_remap(const char *msg) { if (irq_remapping_enabled) diff --git a/drivers/iommu/irq_remapping.h b/drivers/iommu/irq_remapping.h index 32a3ad30d760..bc7f80c2faf8 100644 --- a/drivers/iommu/irq_remapping.h +++ b/drivers/iommu/irq_remapping.h @@ -66,20 +66,6 @@ struct irq_remap_ops { /* Free an IRQ */ int (*free_irq)(int); - /* Create MSI msg to use for interrupt remapping */ - void (*compose_msi_msg)(struct pci_dev *, - unsigned int, unsigned int, - struct msi_msg *, u8); - - /* Allocate remapping resources for MSI */ - int (*msi_alloc_irq)(struct pci_dev *, int, int); - - /* Setup the remapped MSI irq */ - int (*msi_setup_irq)(struct pci_dev *, unsigned int, int, int); - - /* Setup interrupt remapping for an HPET MSI */ - int (*alloc_hpet_msi)(unsigned int, unsigned int); - /* Get the irqdomain associated the IOMMU device */ struct irq_domain *(*get_ir_irq_domain)(struct irq_alloc_info *); 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