From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Brown Subject: [PATCH] asm-generic: Raise default NR_IRQS when using sparse IRQs Date: Wed, 29 Jun 2011 14:20:26 -0700 Message-ID: <1309382426-30614-1-git-send-email-broonie@opensource.wolfsonmicro.com> Return-path: Received: from opensource.wolfsonmicro.com ([80.75.67.52]:59504 "EHLO opensource2.wolfsonmicro.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753439Ab1F3FdA (ORCPT ); Thu, 30 Jun 2011 01:33:00 -0400 Sender: linux-arch-owner@vger.kernel.org List-ID: To: Arnd Bergmann Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, Mark Brown Rather than have each platform using sparse IRQs pick a suitably large NR_IRQS for use with sparse IRQs make the default high when they are enabled. We pick 64k as there is still a bitmap of IRQs that is allocated statically, and as we all know 64k should be enough for anyone. Signed-off-by: Mark Brown --- include/asm-generic/irq.h | 6 +++++- 1 files changed, 5 insertions(+), 1 deletions(-) diff --git a/include/asm-generic/irq.h b/include/asm-generic/irq.h index b90ec0b..0d95650 100644 --- a/include/asm-generic/irq.h +++ b/include/asm-generic/irq.h @@ -4,11 +4,15 @@ /* * NR_IRQS is the upper bound of how many interrupts can be handled * in the platform. It is used to size the static irq_map array, - * so don't make it too big. + * so don't make it too big unless we're using sparse IRQs. */ #ifndef NR_IRQS +#ifdef CONFIG_SPARSE_IRQ +#define NR_IRQS 0xffff +#else #define NR_IRQS 64 #endif +#endif static inline int irq_canonicalize(int irq) { -- 1.7.5.4