From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Gleixner Subject: [patch 18/19] genirq: Provide Kconfig Date: Mon, 27 Sep 2010 12:45:59 -0000 Message-ID: <20100927121843.217333624@linutronix.de> References: <20100927121651.904100669@linutronix.de> Return-path: Received: from www.tglx.de ([62.245.132.106]:48922 "EHLO www.tglx.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759188Ab0I0Mqp (ORCPT ); Mon, 27 Sep 2010 08:46:45 -0400 Content-Disposition: inline; filename=genirq-provide-kconfig.patch Sender: linux-arch-owner@vger.kernel.org List-ID: To: LKML Cc: Andrew Morton , linux-arch@vger.kernel.org, Ingo Molnar , Peter Zijlstra The generic irq Kconfig options are copied around all archs. Provide a generic Kconfig file which can be included. Signed-off-by: Thomas Gleixner --- kernel/irq/Kconfig | 49 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) Index: linux-2.6-tip/kernel/irq/Kconfig =================================================================== --- /dev/null +++ linux-2.6-tip/kernel/irq/Kconfig @@ -0,0 +1,49 @@ +# +# Interrupt subsystem related configuration options +# + +menu "Interrupt handling subsystem" + +config GENERIC_HARDIRQS + def_bool y + +config GENERIC_HARDIRQS_NO__DO_IRQ + def_bool y + +# Options selectable by the architecture code +config HAVE_SPARSE_IRQ + def_bool n + +config GENERIC_IRQ_PROBE + def_bool n + +config GENERIC_PENDING_IRQ + def_bool n + +if SPARSE_IRQ && NUMA +config NUMA_IRQ_DESC + def_bool n +endif + +config AUTO_IRQ_AFFINITY + def_bool n + +config IRQ_PER_CPU + def_bool n + +config HARDIRQS_SW_RESEND + def_bool n + +config SPARSE_IRQ + bool "Support sparse irq numbering" + depends on HAVE_SPARSE_IRQ + ---help--- + This enables support for sparse irqs. This is useful for distro + kernels that want to define a high CONFIG_NR_CPUS value but still + want to have low kernel memory footprint on smaller machines. + + ( Sparse IRQs can also be beneficial on NUMA boxes, as they spread + out the irq_desc[] array in a more NUMA-friendly way. ) + + If you don't know what to do here, say N. +