Natalie Protasevich c434b7a6ae [PATCH] x86: avoid wasting IRQs for PCI devices ... I have submitted the patch for x86_64, this is submission for i386. The patch changes the way IRQs are handed out to PCI devices. Currently, each I/O APIC pin gets associated with an IRQ, no matter if the pin is used or not. This imposes severe limitation on systems that have designs that employ many I/O APICs, only utilizing couple lines of each, such as P64H2 chipset. It is used in ES7000, and currently, there is no way to boot the system with more that 9 I/O APICs. The simple change below allows to boot a system with say 64 (or more) I/O APICs, each providing 1 slot, which otherwise impossible because of the IRQ gaps created for unused lines on each I/O APIC. It does not resolve the problem with number of devices that exceeds number of possible IRQs, but eases up a tension for IRQs on any large system with potentually large number of devices. Signed-off-by: Natalie Protasevich <Natalie.Protasevich@unisys.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		2005-06-23 09:45:10 -07:00
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alpha	[PATCH] update all defconfigs for ARCH_DISCONTIGMEM_ENABLE	2005-06-23 09:45:02 -07:00
arm	[PATCH] use ${CROSS_COMPILE}installkernel in arch/*/boot/install.sh	2005-06-23 09:45:07 -07:00
arm26	[PATCH] use ${CROSS_COMPILE}installkernel in arch/*/boot/install.sh	2005-06-23 09:45:07 -07:00
cris	[PATCH] make each arch use mm/Kconfig	2005-06-23 09:45:02 -07:00
frv	[PATCH] make each arch use mm/Kconfig	2005-06-23 09:45:02 -07:00
h8300	[PATCH] make each arch use mm/Kconfig	2005-06-23 09:45:02 -07:00
i386	[PATCH] x86: avoid wasting IRQs for PCI devices	2005-06-23 09:45:10 -07:00
ia64	[PATCH] ia64: Selectable Timer Interrupt Frequency	2005-06-23 09:45:10 -07:00
m32r	[PATCH] make each arch use mm/Kconfig	2005-06-23 09:45:02 -07:00
m68k	[PATCH] make each arch use mm/Kconfig	2005-06-23 09:45:02 -07:00
m68knommu	[PATCH] make each arch use mm/Kconfig	2005-06-23 09:45:02 -07:00
mips	[PATCH] mm/Kconfig: kill unused ARCH_FLATMEM_DISABLE	2005-06-23 09:45:03 -07:00
parisc	[PATCH] mm/Kconfig: kill unused ARCH_FLATMEM_DISABLE	2005-06-23 09:45:03 -07:00
ppc	[PATCH] make each arch use mm/Kconfig	2005-06-23 09:45:02 -07:00
ppc64	[PATCH] use ${CROSS_COMPILE}installkernel in arch/*/boot/install.sh	2005-06-23 09:45:07 -07:00
s390	[PATCH] use ${CROSS_COMPILE}installkernel in arch/*/boot/install.sh	2005-06-23 09:45:07 -07:00
sh	[PATCH] mm/Kconfig: kill unused ARCH_FLATMEM_DISABLE	2005-06-23 09:45:03 -07:00
sh64	[PATCH] make each arch use mm/Kconfig	2005-06-23 09:45:02 -07:00
sparc	[PATCH] make each arch use mm/Kconfig	2005-06-23 09:45:02 -07:00
sparc64	[PATCH] make each arch use mm/Kconfig	2005-06-23 09:45:02 -07:00
um	[PATCH] make each arch use mm/Kconfig	2005-06-23 09:45:02 -07:00
v850	[PATCH] make each arch use mm/Kconfig	2005-06-23 09:45:02 -07:00
x86_64	[PATCH] i386: Selectable Frequency of the Timer Interrupt	2005-06-23 09:45:10 -07:00