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authorEric W. Biederman <ebiederm@xmission.com>2006-10-04 02:16:47 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-04 07:55:28 -0700
commitace80ab796ae30d2c9ee8a84ab6f608a61f8b87b (patch)
tree05eb2c68e534af4982ad82c459b1a65e3e712faf /include
parent04b9267b15206fc902a18de1f78de6c82ca47716 (diff)
downloadlinux-ace80ab796ae30d2c9ee8a84ab6f608a61f8b87b.tar.bz2
[PATCH] genirq: i386 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 [akpm@osdl.org: cleanup] Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Rajesh Shah <rajesh.shah@intel.com> Cc: Andi Kleen <ak@muc.de> Cc: "Protasevich, Natalie" <Natalie.Protasevich@UNISYS.com> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include')
-rw-r--r--include/asm-i386/hw_irq.h1
-rw-r--r--include/asm-i386/io_apic.h42
-rw-r--r--include/asm-i386/mach-default/irq_vectors_limits.h5
-rw-r--r--include/asm-x86_64/io_apic.h2
4 files changed, 0 insertions, 50 deletions
diff --git a/include/asm-i386/hw_irq.h b/include/asm-i386/hw_irq.h
index 8e8fbfaa252a..88f02a073561 100644
--- a/include/asm-i386/hw_irq.h
+++ b/include/asm-i386/hw_irq.h
@@ -28,7 +28,6 @@
extern u8 irq_vector[NR_IRQ_VECTORS];
#define IO_APIC_VECTOR(irq) (irq_vector[irq])
-#define AUTO_ASSIGN -1
extern void (*interrupt[NR_IRQS])(void);
diff --git a/include/asm-i386/io_apic.h b/include/asm-i386/io_apic.h
index 5d309275a1dc..276ea7e8144a 100644
--- a/include/asm-i386/io_apic.h
+++ b/include/asm-i386/io_apic.h
@@ -12,46 +12,6 @@
#ifdef CONFIG_X86_IO_APIC
-#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 IO_APIC_BASE(idx) \
((volatile int *)(__fix_to_virt(FIX_IO_APIC_BASE_0 + idx) \
+ (mp_ioapics[idx].mpc_apicaddr & ~PAGE_MASK)))
@@ -219,6 +179,4 @@ extern int (*ioapic_renumber_irq)(int ioapic, int irq);
static inline void disable_ioapic_setup(void) { }
#endif
-extern int assign_irq_vector(int irq);
-
#endif
diff --git a/include/asm-i386/mach-default/irq_vectors_limits.h b/include/asm-i386/mach-default/irq_vectors_limits.h
index b330026e6f7f..7f161e760be6 100644
--- a/include/asm-i386/mach-default/irq_vectors_limits.h
+++ b/include/asm-i386/mach-default/irq_vectors_limits.h
@@ -1,10 +1,6 @@
#ifndef _ASM_IRQ_VECTORS_LIMITS_H
#define _ASM_IRQ_VECTORS_LIMITS_H
-#ifdef CONFIG_PCI_MSI
-#define NR_IRQS FIRST_SYSTEM_VECTOR
-#define NR_IRQ_VECTORS NR_IRQS
-#else
#ifdef CONFIG_X86_IO_APIC
#define NR_IRQS 224
# if (224 >= 32 * NR_CPUS)
@@ -16,6 +12,5 @@
#define NR_IRQS 16
#define NR_IRQ_VECTORS NR_IRQS
#endif
-#endif
#endif /* _ASM_IRQ_VECTORS_LIMITS_H */
diff --git a/include/asm-x86_64/io_apic.h b/include/asm-x86_64/io_apic.h
index df579ac29a1e..b26248b0e373 100644
--- a/include/asm-x86_64/io_apic.h
+++ b/include/asm-x86_64/io_apic.h
@@ -10,8 +10,6 @@
* Copyright (C) 1997, 1998, 1999, 2000 Ingo Molnar
*/
-static inline int use_pci_vector(void) {return 0;}
-
#define APIC_MISMATCH_DEBUG
#define IO_APIC_BASE(idx) \