linux-kernel - Re: [PATCH v2 2/2] ARM: Replace calls to __aeabi

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Message-ID: <20151126000840.GV8644@n2100.arm.linux.org.uk>
Date:	Thu, 26 Nov 2015 00:08:40 +0000
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Stephen Boyd <sboyd@...eaurora.org>
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-arm-msm@...r.kernel.org, Michal Marek <mmarek@...e.com>,
	linux-kbuild@...r.kernel.org, Nicolas Pitre <nico@...xnic.net>,
	Arnd Bergmann <arnd@...db.de>,
	Steven Rostedt <rostedt@...dmis.org>,
	Måns Rullgård <mans@...sr.com>,
	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>
Subject: Re: [PATCH v2 2/2] ARM: Replace calls to __aeabi_{u}idiv with
 udiv/sdiv instructions

On Wed, Nov 25, 2015 at 01:51:04PM -0800, Stephen Boyd wrote:
> diff --git a/arch/arm/include/asm/cputype.h b/arch/arm/include/asm/cputype.h
> index 85e374f873ac..48c77d422a0d 100644
> --- a/arch/arm/include/asm/cputype.h
> +++ b/arch/arm/include/asm/cputype.h
> @@ -250,8 +250,14 @@ static inline int cpu_is_pj4(void)
>  
>  	return 0;
>  }
> +
> +static inline bool __attribute_const__ cpu_is_pj4_nomp(void)
> +{
> +	return read_cpuid_part() == 0x56005810;

One other thing here, we really ought to avoid adding more magic numbers
to this file.  We have the ARM processors nicely #defined, but not a lot
else.  Maybe its time that we continued with the nice definitions for
these part numbers?

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