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authorYinghai Lu <yhlu.kernel@gmail.com>2008-08-19 20:50:51 -0700
committerIngo Molnar <mingo@elte.hu>2008-10-16 16:52:57 +0200
commit8f09cd20a24c5f13c571bc73ddcd47be0af3b70f (patch)
tree7b4188221e5ac41d6ec9f773b87a5f8413f530b4 /arch/x86/Kconfig
parentffd5aae7817fba22c5c3e304a31c44fa0a4e9a97 (diff)
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/Kconfig12
1 files changed, 11 insertions, 1 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index b157e94637b..600584b7a49 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