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| author | Yinghai Lu <yhlu.kernel@gmail.com> | 2008-08-19 20:50:51 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-10-16 16:52:57 +0200 |
| commit | 8f09cd20a24c5f13c571bc73ddcd47be0af3b70f (patch) | |
| tree | 7b4188221e5ac41d6ec9f773b87a5f8413f530b4 /arch/x86/Kconfig | |
| parent | ffd5aae7817fba22c5c3e304a31c44fa0a4e9a97 (diff) | |
| download | blackbird-op-linux-8f09cd20a24c5f13c571bc73ddcd47be0af3b70f.tar.gz blackbird-op-linux-8f09cd20a24c5f13c571bc73ddcd47be0af3b70f.zip | |
x86: make HAVE_SPARSE_IRQ support selectable
Ingo said sparse_irq is some intrusive. need to make it selectable
to make it simple, remove irq_desc as parameter in some functions.
(ack, eoi, set_affinity).
may need to make member if irq_chip to take irq_desc, or struct irq later.
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/Kconfig')
| -rw-r--r-- | arch/x86/Kconfig | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index b157e94637bf..600584b7a497 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -34,7 +34,6 @@ config X86 select HAVE_GENERIC_DMA_COHERENT if X86_32 select HAVE_EFFICIENT_UNALIGNED_ACCESS select HAVE_DYN_ARRAY - select HAVE_SPARSE_IRQ config ARCH_DEFCONFIG string @@ -238,6 +237,17 @@ config SMP If you don't know what to do here, say N. +config HAVE_SPARSE_IRQ + bool "Support sparse irq numbering" + depends on PCI_MSI || HT_IRQ + default y + help + This enables support for sparse irq, esp for msi/msi-x. the irq + number will be bus/dev/fn + 12bit. You may need if you have lots of + cards supports msi-x installed. + + If you don't know what to do here, say Y. + config X86_FIND_SMP_CONFIG def_bool y depends on X86_MPPARSE || X86_VOYAGER |
