pci_fixup_irqs is the current method used in most arches to assign IRQs to PCI devices. This has a number of flaws including it requiring an extra walk of the PCI bus and most importantly not running for devices which are added after boot time, this includes hot-added devices on boards that support this. This patch set (which is a respin of my earlier patch set) modifies the IRQ mapping and swizzling infrastructure such that functions are registered by the boot code (instead of being run directly by the boot code) and then run later in the enable_device path such that it will apply to all devices and not only those inserted at boot time. This is cleaner as it unifies how each architecture allocates PCI IRQs as much as possible (some arches were particularly resistant to these changes so some work-arounds have been used). The caveat here is that I have been forced to modify some architecture specific code for various architectures which I cannot test due to not having such boards available. The code seems correct and the changes in most cases are small and trivial however I need some help testing these patches. I am also a little unsure if these should all be here or if some of them should be sent to architecture specific lists, the reason I picked here as these all need to be applied at once in order to safely work. Any comments on this patch revision would be very appreciated, particularly if anyone can catch bugs in any of the arches which are listed as (untested) in the patch names. Many thanks, Matthew arch/alpha/kernel/pci.c | 16 ++++++++++------ arch/alpha/kernel/sys_nautilus.c | 1 - arch/arm/kernel/bios32.c | 13 +++++++++---- arch/cris/arch-v32/drivers/pci/bios.c | 14 +++++--------- arch/frv/mb93090-mb00/pci-frv.h | 1 - arch/frv/mb93090-mb00/pci-irq.c | 28 +++++++++++++++++----------- arch/frv/mb93090-mb00/pci-vdk.c | 1 - arch/ia64/pci/pci.c | 3 +++ arch/m68k/platform/coldfire/pci.c | 8 +++++++- arch/microblaze/pci/pci-common.c | 10 +++++++--- arch/mips/pci/pci.c | 9 +++++++-- arch/mn10300/unit-asb2305/pci-asb2305.h | 5 +---- arch/mn10300/unit-asb2305/pci-irq.c | 25 +++++-------------------- arch/mn10300/unit-asb2305/pci.c | 21 ++++++++------------- arch/parisc/kernel/pci.c | 8 +++++++- arch/powerpc/kernel/pci-common.c | 26 +++++++++++++------------- arch/s390/pci/pci.c | 7 +++++++ arch/sh/drivers/pci/fixups-cayman.c | 2 +- arch/sh/drivers/pci/fixups-dreamcast.c | 2 +- arch/sh/drivers/pci/fixups-r7780rp.c | 2 +- arch/sh/drivers/pci/fixups-rts7751r2d.c | 6 +++--- arch/sh/drivers/pci/fixups-sdk7780.c | 4 ++-- arch/sh/drivers/pci/fixups-se7751.c | 2 +- arch/sh/drivers/pci/fixups-sh03.c | 2 +- arch/sh/drivers/pci/fixups-snapgear.c | 2 +- arch/sh/drivers/pci/fixups-titan.c | 4 ++-- arch/sh/drivers/pci/pci.c | 10 +++++++--- arch/sh/drivers/pci/pcie-sh7786.c | 2 +- arch/sparc/kernel/leon_pci.c | 12 +++++++++++- arch/sparc/kernel/pci.c | 21 +++++++++++++++++---- arch/tile/kernel/pci.c | 10 +++++++--- arch/tile/kernel/pci_gx.c | 10 +++++++--- arch/unicore32/kernel/pci.c | 11 ++++++++--- arch/x86/include/asm/pci_x86.h | 7 ++++--- arch/x86/kernel/x86_init.c | 1 - arch/x86/pci/acpi.c | 5 ++++- arch/x86/pci/common.c | 2 -- arch/x86/pci/irq.c | 95 +++++++++++++++++++++++++++++++++++++++++++++++++++-------------------------------------------- drivers/of/of_pci_irq.c | 2 +- drivers/pci/Makefile | 15 ++------------- drivers/pci/host-bridge.c | 2 +- drivers/pci/pci.c | 6 +++++- drivers/pci/pci.h | 1 + drivers/pci/probe.c | 12 ------------ drivers/pci/setup-irq.c | 34 ++++++++++++++++------------------ include/linux/pci.h | 8 ++++---- 46 files changed, 266 insertions(+), 222 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
