From 04b9267b15206fc902a18de1f78de6c82ca47716 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Wed, 4 Oct 2006 02:16:46 -0700 Subject: [PATCH] genirq: x86_64 irq: Remove the msi assumption that irq == vector This patch removes the change in behavior of the irq allocation code when CONFIG_PCI_MSI is defined. Removing all instances of the assumption that irq == vector. create_irq is rewritten to first allocate a free irq and then to assign that irq a vector. assign_irq_vector is made static and the AUTO_ASSIGN case which allocates an vector not bound to an irq is removed. The ioapic vector methods are removed, and everything now works with irqs. The definition of NR_IRQS no longer depends on CONFIG_PCI_MSI Signed-off-by: Eric W. Biederman Cc: Ingo Molnar Cc: Thomas Gleixner Cc: Benjamin Herrenschmidt Cc: Rajesh Shah Cc: Andi Kleen Cc: "Protasevich, Natalie" Cc: "Luck, Tony" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-x86_64/hw_irq.h | 1 - include/asm-x86_64/io_apic.h | 40 ---------------------------------------- include/asm-x86_64/irq.h | 5 ----- 3 files changed, 46 deletions(-) (limited to 'include') diff --git a/include/asm-x86_64/hw_irq.h b/include/asm-x86_64/hw_irq.h index f5da94af9c41..1a8dc185a79f 100644 --- a/include/asm-x86_64/hw_irq.h +++ b/include/asm-x86_64/hw_irq.h @@ -75,7 +75,6 @@ #ifndef __ASSEMBLY__ extern u8 irq_vector[NR_IRQ_VECTORS]; #define IO_APIC_VECTOR(irq) (irq_vector[irq]) -#define AUTO_ASSIGN -1 /* * Various low-level irq details needed by irq.c, process.c, diff --git a/include/asm-x86_64/io_apic.h b/include/asm-x86_64/io_apic.h index 5d1b5c68e36e..df579ac29a1e 100644 --- a/include/asm-x86_64/io_apic.h +++ b/include/asm-x86_64/io_apic.h @@ -10,45 +10,7 @@ * Copyright (C) 1997, 1998, 1999, 2000 Ingo Molnar */ -#ifdef CONFIG_PCI_MSI -static inline int use_pci_vector(void) {return 1;} -static inline void disable_edge_ioapic_vector(unsigned int vector) { } -static inline void mask_and_ack_level_ioapic_vector(unsigned int vector) { } -static inline void end_edge_ioapic_vector (unsigned int vector) { } -#define startup_level_ioapic startup_level_ioapic_vector -#define shutdown_level_ioapic mask_IO_APIC_vector -#define enable_level_ioapic unmask_IO_APIC_vector -#define disable_level_ioapic mask_IO_APIC_vector -#define mask_and_ack_level_ioapic mask_and_ack_level_ioapic_vector -#define end_level_ioapic end_level_ioapic_vector -#define set_ioapic_affinity set_ioapic_affinity_vector - -#define startup_edge_ioapic startup_edge_ioapic_vector -#define shutdown_edge_ioapic disable_edge_ioapic_vector -#define enable_edge_ioapic unmask_IO_APIC_vector -#define disable_edge_ioapic disable_edge_ioapic_vector -#define ack_edge_ioapic ack_edge_ioapic_vector -#define end_edge_ioapic end_edge_ioapic_vector -#else static inline int use_pci_vector(void) {return 0;} -static inline void disable_edge_ioapic_irq(unsigned int irq) { } -static inline void mask_and_ack_level_ioapic_irq(unsigned int irq) { } -static inline void end_edge_ioapic_irq (unsigned int irq) { } -#define startup_level_ioapic startup_level_ioapic_irq -#define shutdown_level_ioapic mask_IO_APIC_irq -#define enable_level_ioapic unmask_IO_APIC_irq -#define disable_level_ioapic mask_IO_APIC_irq -#define mask_and_ack_level_ioapic mask_and_ack_level_ioapic_irq -#define end_level_ioapic end_level_ioapic_irq -#define set_ioapic_affinity set_ioapic_affinity_irq - -#define startup_edge_ioapic startup_edge_ioapic_irq -#define shutdown_edge_ioapic disable_edge_ioapic_irq -#define enable_edge_ioapic unmask_IO_APIC_irq -#define disable_edge_ioapic disable_edge_ioapic_irq -#define ack_edge_ioapic ack_edge_ioapic_irq -#define end_edge_ioapic end_edge_ioapic_irq -#endif #define APIC_MISMATCH_DEBUG @@ -207,8 +169,6 @@ extern int timer_uses_ioapic_pin_0; extern int sis_apic_bug; /* dummy */ -extern int assign_irq_vector(int irq); - void enable_NMI_through_LVT0 (void * dummy); extern spinlock_t i8259A_lock; diff --git a/include/asm-x86_64/irq.h b/include/asm-x86_64/irq.h index 43469d8ab71a..b8f87287847f 100644 --- a/include/asm-x86_64/irq.h +++ b/include/asm-x86_64/irq.h @@ -31,13 +31,8 @@ #define FIRST_SYSTEM_VECTOR 0xef /* duplicated in hw_irq.h */ -#ifdef CONFIG_PCI_MSI -#define NR_IRQS FIRST_SYSTEM_VECTOR -#define NR_IRQ_VECTORS NR_IRQS -#else #define NR_IRQS 224 #define NR_IRQ_VECTORS (32 * NR_CPUS) -#endif static __inline__ int irq_canonicalize(int irq) { -- cgit v1.2.1