sparse irq_desc[] array: core kernel and x86 changes

[karo-tx-linux.git] / arch / x86 / Kconfig

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 4cf0ab13d187a943f88afc1d9761c739fee41008..48ac688de3cdb2507877013b6721af7077fac724 100644 (file)
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -167,9 +167,12 @@ config GENERIC_PENDING_IRQ
 config X86_SMP
        bool
        depends on SMP && ((X86_32 && !X86_VOYAGER) || X86_64)
-       select USE_GENERIC_SMP_HELPERS
        default y
 
+config USE_GENERIC_SMP_HELPERS
+       def_bool y
+       depends on SMP
+
 config X86_32_SMP
        def_bool y
        depends on X86_32 && SMP
@@ -235,6 +238,16 @@ config X86_HAS_BOOT_CPU_ID
        def_bool y
        depends on X86_VOYAGER
 
+config 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. 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