| Message ID | 1391619853-10601-3-git-send-email-leif.lindholm@linaro.org |
|---|---|
| State | New |
| Headers | show
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[86.14.224.72]) by mx.google.com with ESMTPSA id p1sm47427211wie.1.2014.02.05.09.05.10 for <multiple recipients> (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 05 Feb 2014 09:05:11 -0800 (PST) From: Leif Lindholm <leif.lindholm@linaro.org> To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-efi@vger.kernel.org Cc: patches@linaro.org, Leif Lindholm <leif.lindholm@linaro.org>, Will Deacon <will.deacon@arm.com> 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> X-Removed-Original-Auth: Dkim didn't pass. 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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__ */
A new macro for setting/clearing bits in the SCTLR. Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org> Suggested-by: Will Deacon <will.deacon@arm.com> Cc: Will Deacon <will.deacon@arm.com> --- arch/arm/include/asm/assembler.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+)