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Date: Wed, 5 Feb 2014 17:03:53 +0000 From: Leif Lindholm <leif.lindholm@...aro.org> To: linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linux-efi@...r.kernel.org Cc: patches@...aro.org, Leif Lindholm <leif.lindholm@...aro.org>, Will Deacon <will.deacon@....com> Subject: [PATCH 02/22] arm: add new asm macro update_sctlr A new macro for setting/clearing bits in the SCTLR. Signed-off-by: Leif Lindholm <leif.lindholm@...aro.org> Suggested-by: Will Deacon <will.deacon@....com> Cc: Will Deacon <will.deacon@....com> --- 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@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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