From 48a1b10aff588833b73994704c47bbd0deb73e9c Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Thu, 11 Dec 2008 00:15:01 -0800 Subject: x86, sparseirq: move irq_desc according to smp_affinity, v7 Impact: improve NUMA handling by migrating irq_desc on smp_affinity changes if CONFIG_NUMA_MIGRATE_IRQ_DESC is set: - make irq_desc to go with affinity aka irq_desc moving etc - call move_irq_desc in irq_complete_move() - legacy irq_desc is not moved, because they are allocated via static array for logical apic mode, need to add move_desc_in_progress_in_same_domain, otherwise it will not be moved ==> also could need two phases to get irq_desc moved. Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- arch/x86/Kconfig | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'arch/x86/Kconfig') diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 8943c13502c6..29073532f94c 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -248,6 +248,15 @@ config SPARSE_IRQ If you don't know what to do here, say Y. +config NUMA_MIGRATE_IRQ_DESC + bool "Move irq desc when changing irq smp_affinity" + depends on SPARSE_IRQ && SMP + default n + help + This enables moving irq_desc to cpu/node that irq will use handled. + + If you don't know what to do here, say N. + config X86_FIND_SMP_CONFIG def_bool y depends on X86_MPPARSE || X86_VOYAGER -- cgit v1.2.1 From 17483a1f34c970e6c2cb8c082d4441bfabbe88a9 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Fri, 12 Dec 2008 13:14:18 -0800 Subject: sparseirq: fix !SMP building, #2 Impact: build fix make intr_remapping.c to include smp.h, so could use boot_cpu_id there also remove old change that disabling sparseirq with !SMP Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- arch/x86/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86/Kconfig') diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 29073532f94c..60a008857a38 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -240,7 +240,7 @@ config X86_HAS_BOOT_CPU_ID config SPARSE_IRQ bool "Support sparse irq numbering" - depends on (PCI_MSI || HT_IRQ) && SMP + depends on PCI_MSI || HT_IRQ default y help This enables support for sparse irq, esp for msi/msi-x. You may need -- cgit v1.2.1