linux/include/asm-ia64/msi.h
Ashok Raj b4033c1715 [PATCH] PCI: Change MSI to use physical delivery mode always
MSI hardcoded delivery mode to use logical delivery mode. Recently
x86_64 moved to use physical mode addressing to support physflat mode.
With this mode enabled noticed that my eth with MSI werent working.

msi_address_init()  was hardcoded to use logical mode for i386 and x86_64.
So when we switch to use physical mode, things stopped working.

Since anyway we dont use lowest priority delivery with MSI, its always
directed to just a single CPU. Its safe  and simpler to use
physical mode always, even when we use logical delivery mode for IPI's
or other ioapic RTE's.

Signed-off-by: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-11-10 16:09:18 -08:00

17 lines
446 B
C

/*
* Copyright (C) 2003-2004 Intel
* Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com)
*/
#ifndef ASM_MSI_H
#define ASM_MSI_H
#define NR_VECTORS NR_IRQS
#define FIRST_DEVICE_VECTOR IA64_FIRST_DEVICE_VECTOR
#define LAST_DEVICE_VECTOR IA64_LAST_DEVICE_VECTOR
static inline void set_intr_gate (int nr, void *func) {}
#define IO_APIC_VECTOR(irq) (irq)
#define ack_APIC_irq ia64_eoi
#define MSI_TARGET_CPU_SHIFT 4
#endif /* ASM_MSI_H */