Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753214AbaAKNG1 (ORCPT ); Sat, 11 Jan 2014 08:06:27 -0500 Received: from mail-wi0-f175.google.com ([209.85.212.175]:44262 "EHLO mail-wi0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752292AbaAKNF6 (ORCPT ); Sat, 11 Jan 2014 08:05:58 -0500 From: Leif Lindholm To: linux-kernel@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org, linux-efi@vger.kernel.org, matt.fleming@intel.com, roy.franz@linaro.org, msalter@redhat.com, linux@arm.linux.org.uk, grant.likely@secretlab.ca, patches@linaro.org, Leif Lindholm Subject: [PATCH v4 2/5] arm: add new asm macro update_sctlr Date: Sat, 11 Jan 2014 13:05:21 +0000 Message-Id: <1389445524-30623-3-git-send-email-leif.lindholm@linaro.org> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1389445524-30623-1-git-send-email-leif.lindholm@linaro.org> References: <1389445524-30623-1-git-send-email-leif.lindholm@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org A new macro for setting/clearing bits in the SCTLR. Signed-off-by: Leif Lindholm Suggested-by: Will Deacon --- arch/arm/include/asm/assembler.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h index 5c22851..aba6458 100644 --- a/arch/arm/include/asm/assembler.h +++ b/arch/arm/include/asm/assembler.h @@ -383,4 +383,17 @@ THUMB( orr \reg , \reg , #PSR_T_BIT ) #endif .endm +#ifdef CONFIG_CPU_CP15 +/* Macro for setting/clearing bits in sctlr */ + .macro update_sctlr, set:req, clear:req, tmp:req, tmp2:req + mrc p15, 0, \tmp, c1, c0, 0 + ldr \tmp2, =\set + orr \tmp, \tmp, \tmp2 + ldr \tmp2, =\clear + mvn \tmp2, \tmp2 + and \tmp, \tmp, \tmp2 + mcr p15, 0, \tmp, c1, c0, 0 + .endm +#endif + #endif /* __ASM_ASSEMBLER_H__ */ -- 1.7.10.4 -- 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/