From 9880534989ba96faad26aebc01dcdb2c1b5793aa Mon Sep 17 00:00:00 2001 From: Jiang Liu Date: Tue, 14 Apr 2015 10:29:46 +0800 Subject: [PATCH] irq_remapping: Clean up unsued code to support IOAPIC Now we have converted to hierarchical irqdomains, so clean up unused code. Signed-off-by: Jiang Liu Tested-by: Joerg Roedel Cc: Konrad Rzeszutek Wilk Cc: David Cohen Cc: Sander Eikelenboom Cc: David Vrabel 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: Dimitri Sivanich Cc: Joerg Roedel Link: http://lkml.kernel.org/r/1428978610-28986-10-git-send-email-jiang.liu@linux.intel.com Signed-off-by: Thomas Gleixner --- arch/x86/include/asm/irq_remapping.h | 23 ------------------- arch/x86/kernel/apic/vector.c | 1 - drivers/iommu/irq_remapping.c | 33 ---------------------------- 3 files changed, 57 deletions(-) diff --git a/arch/x86/include/asm/irq_remapping.h b/arch/x86/include/asm/irq_remapping.h index 4b5bbd104ae2..09efa358c831 100644 --- a/arch/x86/include/asm/irq_remapping.h +++ b/arch/x86/include/asm/irq_remapping.h @@ -26,12 +26,7 @@ #include #include -struct IO_APIC_route_entry; -struct io_apic_irq_attr; -struct irq_chip; struct msi_msg; -struct pci_dev; -struct irq_cfg; struct irq_alloc_info; #ifdef CONFIG_IRQ_REMAP @@ -42,13 +37,7 @@ extern int irq_remapping_enable(void); extern void irq_remapping_disable(void); extern int irq_remapping_reenable(int); extern int irq_remap_enable_fault_handling(void); -extern void free_remapped_irq(int irq); extern void panic_if_irq_remap(const char *msg); -extern bool setup_remapped_irq(int irq, - struct irq_cfg *cfg, - struct irq_chip *chip); - -void irq_remap_modify_chip_defaults(struct irq_chip *chip); extern struct irq_domain * irq_remapping_get_ir_irq_domain(struct irq_alloc_info *info); @@ -72,23 +61,11 @@ static inline int irq_remapping_enable(void) { return -ENODEV; } static inline void irq_remapping_disable(void) { } static inline int irq_remapping_reenable(int eim) { return -ENODEV; } static inline int irq_remap_enable_fault_handling(void) { return -ENODEV; } -static inline void free_remapped_irq(int irq) { } static inline void panic_if_irq_remap(const char *msg) { } -static inline void irq_remap_modify_chip_defaults(struct irq_chip *chip) -{ -} - -static inline bool setup_remapped_irq(int irq, - struct irq_cfg *cfg, - struct irq_chip *chip) -{ - return false; -} - static inline struct irq_domain * irq_remapping_get_ir_irq_domain(struct irq_alloc_info *info) { diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c index d0e5ea0fb947..37bb9e82b919 100644 --- a/arch/x86/kernel/apic/vector.c +++ b/arch/x86/kernel/apic/vector.c @@ -283,7 +283,6 @@ static void x86_vector_free_irqs(struct irq_domain *domain, for (i = 0; i < nr_irqs; i++) { irq_data = irq_domain_get_irq_data(x86_vector_domain, virq + i); if (irq_data && irq_data->chip_data) { - free_remapped_irq(virq); clear_irq_vector(virq + i, irq_data->chip_data); free_irq_cfg(irq_data->chip_data); #ifdef CONFIG_X86_IO_APIC diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c index bca42550b1ad..fc78b0d41f71 100644 --- a/drivers/iommu/irq_remapping.c +++ b/drivers/iommu/irq_remapping.c @@ -25,11 +25,6 @@ int no_x2apic_optout; static int disable_irq_remap; static struct irq_remap_ops *remap_ops; -static bool irq_remapped(struct irq_cfg *cfg) -{ - return (cfg->remapped == 1); -} - static void irq_remapping_disable_io_apic(void) { /* @@ -140,14 +135,6 @@ int __init irq_remap_enable_fault_handling(void) return remap_ops->enable_faulting(); } -void free_remapped_irq(int irq) -{ - struct irq_cfg *cfg = irq_cfg(irq); - - if (irq_remapped(cfg) && remap_ops->free_irq) - remap_ops->free_irq(irq); -} - void panic_if_irq_remap(const char *msg) { if (irq_remapping_enabled) @@ -159,26 +146,6 @@ void ir_ack_apic_edge(struct irq_data *data) ack_APIC_irq(); } -static void ir_print_prefix(struct irq_data *data, struct seq_file *p) -{ - seq_printf(p, " IR-%s", data->chip->name); -} - -void irq_remap_modify_chip_defaults(struct irq_chip *chip) -{ - chip->irq_print_chip = ir_print_prefix; - chip->irq_ack = ir_ack_apic_edge; -} - -bool setup_remapped_irq(int irq, struct irq_cfg *cfg, struct irq_chip *chip) -{ - if (!irq_remapped(cfg)) - return false; - irq_set_status_flags(irq, IRQ_MOVE_PCNTXT); - irq_remap_modify_chip_defaults(chip); - return true; -} - /** * irq_remapping_get_ir_irq_domain - Get the irqdomain associated with the IOMMU * device serving request @info