From: Catalin Marinas <catalin.marinas@arm.com>
To: Andre Przywara <andre.przywara@arm.com>
Cc: Will Deacon <will.deacon@arm.com>,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 4/6] arm64: errata: Calling enable functions for CPU errata too
Date: Fri, 24 Jun 2016 16:34:24 +0100 [thread overview]
Message-ID: <20160624153423.GF22608@e104818-lin.cambridge.arm.com> (raw)
In-Reply-To: <1462812590-4494-5-git-send-email-andre.przywara@arm.com>
On Mon, May 09, 2016 at 05:49:48PM +0100, Andre Przywara wrote:
> Currently we call the (optional) enable function for CPU _features_
> only. As CPU _errata_ descriptions share the same data structure and
> having an enable function is useful for errata as well (for instance
> to set bits in SCTLR), lets call it when enumerating erratas too.
>
> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
> ---
> arch/arm64/include/asm/cpufeature.h | 2 ++
> arch/arm64/kernel/cpu_errata.c | 5 +++++
> arch/arm64/kernel/cpufeature.c | 4 ++--
> 3 files changed, 9 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm64/include/asm/cpufeature.h b/arch/arm64/include/asm/cpufeature.h
> index b9b6494..cb8fb2c 100644
> --- a/arch/arm64/include/asm/cpufeature.h
> +++ b/arch/arm64/include/asm/cpufeature.h
> @@ -174,7 +174,9 @@ void __init setup_cpu_features(void);
>
> void update_cpu_capabilities(const struct arm64_cpu_capabilities *caps,
> const char *info);
> +void enable_cpu_capabilities(const struct arm64_cpu_capabilities *caps);
> void check_local_cpu_errata(void);
> +void __init enable_cpu_errata(void);
Nitpick: I would rather call this enable_errata_workarounds since errata
are already enabled by in hardware ;).
--
Catalin
next prev parent reply other threads:[~2016-06-24 15:34 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-09 16:49 [PATCH 0/6] arm64: Extend Cortex-A53 errata workaround Andre Przywara
2016-05-09 16:49 ` [PATCH 1/6] arm64: alternatives: drop enable parameter from _else and _endif macro Andre Przywara
2016-06-23 17:17 ` Catalin Marinas
2016-05-09 16:49 ` [PATCH 2/6] arm64: fix "dc cvau" cache operation on errata-affected core Andre Przywara
2016-05-09 16:49 ` [PATCH 3/6] arm64: include alternative handling in dcache_by_line_op Andre Przywara
2016-06-24 15:32 ` Catalin Marinas
2016-05-09 16:49 ` [PATCH 4/6] arm64: errata: Calling enable functions for CPU errata too Andre Przywara
2016-06-10 15:31 ` Suzuki K Poulose
2016-06-24 15:34 ` Catalin Marinas [this message]
2016-05-09 16:49 ` [PATCH 5/6] arm64: consolidate signal injection on emulation errors Andre Przywara
2016-05-09 16:49 ` [PATCH 6/6] arm64: trap userspace "dc cvau" cache operation on errata-affected core Andre Przywara
2016-06-14 16:16 ` Suzuki K Poulose
2016-06-17 17:20 ` Andre Przywara
2016-06-17 17:25 ` Suzuki K Poulose
2016-06-24 16:25 ` Catalin Marinas
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