Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753611AbaBERMv (ORCPT ); Wed, 5 Feb 2014 12:12:51 -0500 Received: from mail-wg0-f47.google.com ([74.125.82.47]:47100 "EHLO mail-wg0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753175AbaBERFM (ORCPT ); Wed, 5 Feb 2014 12:05:12 -0500 From: Leif Lindholm To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-efi@vger.kernel.org Cc: patches@linaro.org, Leif Lindholm , Will Deacon Subject: [PATCH 02/22] arm: add new asm macro update_sctlr Date: Wed, 5 Feb 2014 17:03:53 +0000 Message-Id: <1391619853-10601-3-git-send-email-leif.lindholm@linaro.org> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1391619853-10601-1-git-send-email-leif.lindholm@linaro.org> References: <1391619853-10601-1-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 Cc: Will Deacon --- arch/arm/include/asm/assembler.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h index 5c22851..e8ca24b 100644 --- a/arch/arm/include/asm/assembler.h +++ b/arch/arm/include/asm/assembler.h @@ -383,4 +383,18 @@ THUMB( orr \reg , \reg , #PSR_T_BIT ) #endif .endm +#ifdef CONFIG_CPU_CP15 +/* Macro for setting/clearing bits in sctlr */ + .macro update_sctlr, tmp:req, set=, clear= + mrc p15, 0, \tmp, c1, c0, 0 + .ifnc \set, + orr \tmp, \set + .endif + .ifnc \clear, + bic \tmp, \tmp, \clear + .endif + 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/