From fd58e55fcf5568e51da2ed54d7acd049c3fdb184 Mon Sep 17 00:00:00 2001 From: Mark Maule Date: Mon, 10 Apr 2006 21:17:48 -0500 Subject: [PATCH] PCI: msi abstractions and support for altix Abstract portions of the MSI core for platforms that do not use standard APIC interrupt controllers. This is implemented through a new arch-specific msi setup routine, and a set of msi ops which can be set on a per platform basis. Signed-off-by: Mark Maule Signed-off-by: Greg Kroah-Hartman --- include/asm-i386/msi.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include/asm-i386') diff --git a/include/asm-i386/msi.h b/include/asm-i386/msi.h index f041d4495fa..ed1014235e9 100644 --- a/include/asm-i386/msi.h +++ b/include/asm-i386/msi.h @@ -12,4 +12,12 @@ #define LAST_DEVICE_VECTOR 232 #define MSI_TARGET_CPU_SHIFT 12 +extern struct msi_ops msi_apic_ops; + +static inline int msi_arch_init(void) +{ + msi_register(&msi_apic_ops); + return 0; +} + #endif /* ASM_MSI_H */ -- cgit v1.2.3-70-g09d2 From b209a6ee49099b7500abf024f7b6b9648b5a3eac Mon Sep 17 00:00:00 2001 From: "bibo,mao" Date: Wed, 31 May 2006 18:17:33 +0800 Subject: [PATCH] PCI: cleanup unused variable about msi driver In IA64 platform, msi driver does not use irq_vector variable, and in x86 platform LAST_DEVICE_VECTOR should one before FIRST_SYSTEM_VECTOR, this patch modify this. Signed-off-by: bibo, mao Signed-off-by: Greg Kroah-Hartman --- drivers/pci/msi.c | 5 ----- include/asm-i386/msi.h | 2 +- include/asm-x86_64/msi.h | 2 +- 3 files changed, 2 insertions(+), 7 deletions(-) (limited to 'include/asm-i386') diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index 3ec558dc652..a81c5b99daf 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -35,7 +35,6 @@ static int nr_msix_devices; #ifndef CONFIG_X86_IO_APIC int vector_irq[NR_VECTORS] = { [0 ... NR_VECTORS - 1] = -1}; -u8 irq_vector[NR_IRQ_VECTORS]; #endif static struct msi_ops *msi_ops; @@ -383,10 +382,6 @@ static int msi_init(void) return status; } -#ifndef CONFIG_X86_IO_APIC - irq_vector[0] = FIRST_DEVICE_VECTOR; -#endif - if (last_alloc_vector < 0) { pci_msi_enable = 0; printk(KERN_WARNING "PCI: No interrupt vectors available for MSI\n"); diff --git a/include/asm-i386/msi.h b/include/asm-i386/msi.h index ed1014235e9..b11c4b7dfae 100644 --- a/include/asm-i386/msi.h +++ b/include/asm-i386/msi.h @@ -9,7 +9,7 @@ #include #include -#define LAST_DEVICE_VECTOR 232 +#define LAST_DEVICE_VECTOR (FIRST_SYSTEM_VECTOR - 1) #define MSI_TARGET_CPU_SHIFT 12 extern struct msi_ops msi_apic_ops; diff --git a/include/asm-x86_64/msi.h b/include/asm-x86_64/msi.h index 8d6d6bf8fad..3ad2346624b 100644 --- a/include/asm-x86_64/msi.h +++ b/include/asm-x86_64/msi.h @@ -10,7 +10,7 @@ #include #include -#define LAST_DEVICE_VECTOR 232 +#define LAST_DEVICE_VECTOR (FIRST_SYSTEM_VECTOR - 1) #define MSI_TARGET_CPU_SHIFT 12 extern struct msi_ops msi_apic_ops; -- cgit v1.2.3-70-g09d2