Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752097AbZIBNLz (ORCPT ); Wed, 2 Sep 2009 09:11:55 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751695AbZIBNLz (ORCPT ); Wed, 2 Sep 2009 09:11:55 -0400 Received: from mail-fx0-f217.google.com ([209.85.220.217]:45576 "EHLO mail-fx0-f217.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751468AbZIBNLy (ORCPT ); Wed, 2 Sep 2009 09:11:54 -0400 From: "Kirill A. Shutemov" To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Koskinen Aaro , Bityutskiy Artem , Moiseichuk Leonid , Siarhei Siamashka , "Kirill A. Shutemov" Subject: [PATCH 1/2] ARM: Introduce ARM_L1_CACHE_SHIFT to define cache line size Date: Wed, 2 Sep 2009 19:11:52 +0300 Message-Id: <1251907913-16261-1-git-send-email-kirill@shutemov.name> X-Mailer: git-send-email 1.6.3.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1346 Lines: 45 Currently kernel believes that all ARM CPUs have L1_CACHE_SHIFT == 5. It's not true at least for CPUs based on Cortex-A8. List of CPUs with cache line size != 32 should be expanded later. Signed-off-by: Kirill A. Shutemov --- arch/arm/include/asm/cache.h | 2 +- arch/arm/mm/Kconfig | 5 +++++ 2 files changed, 6 insertions(+), 1 deletions(-) diff --git a/arch/arm/include/asm/cache.h b/arch/arm/include/asm/cache.h index feaa75f..2ee7743 100644 --- a/arch/arm/include/asm/cache.h +++ b/arch/arm/include/asm/cache.h @@ -4,7 +4,7 @@ #ifndef __ASMARM_CACHE_H #define __ASMARM_CACHE_H -#define L1_CACHE_SHIFT 5 +#define L1_CACHE_SHIFT (CONFIG_ARM_L1_CACHE_SHIFT) #define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) /* diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index 83c025e..3c37d4c 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -771,3 +771,8 @@ config CACHE_XSC3L2 select OUTER_CACHE help This option enables the L2 cache on XScale3. + +config ARM_L1_CACHE_SHIFT + int + default 6 if ARCH_OMAP3 + default 5 -- 1.6.3.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/