linux-kernel - Re: [PATCH v2 1/3] ACPI: ARM64 does not have a BIOS add config for BIOS table scan.

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Date:	Wed, 16 Jul 2014 16:37:48 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Hanjun Guo <hanjun.guo@...aro.org>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>
CC:	Catalin Marinas <catalin.marinas@....com>,
	Graeme Gregory <graeme.gregory@...aro.org>,
	Tony Luck <tony.luck@...el.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	linux-acpi@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, linaro-acpi@...ts.linaro.org
Subject: Re: [PATCH v2 1/3] ACPI: ARM64 does not have a BIOS add config for
 BIOS table scan.

On 07/09/2014 02:39 AM, Hanjun Guo wrote:
> From: Graeme Gregory <graeme.gregory@...aro.org>
> 
> With the addition of ARM64 that does not have a traditional BIOS to
> scan, add a config option which is selected on x86 and ia64 to do
> the traditional BIOS scanning for tables.
> 
> Signed-off-by: Graeme Gregory <graeme.gregory@...aro.org>
> Signed-off-by: Hanjun Guo <hanjun.guo@...aro.org>
> ---
>  arch/ia64/Kconfig    |    1 +
>  arch/x86/Kconfig     |    1 +
>  drivers/acpi/Kconfig |    3 +++
>  drivers/acpi/osl.c   |    4 +++-
>  4 files changed, 8 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
> index 2f3abcf..c54bd7e 100644
> --- a/arch/ia64/Kconfig
> +++ b/arch/ia64/Kconfig
> @@ -47,6 +47,7 @@ config IA64
>  	select MODULES_USE_ELF_RELA
>  	select ARCH_USE_CMPXCHG_LOCKREF
>  	select HAVE_ARCH_AUDITSYSCALL
> +	select ACPI_LEGACY_TABLES_LOOKUP if ACPI
>  	default y
>  	help
>  	  The Itanium Processor Family is Intel's 64-bit successor to

This shouldn't actually be set on IA64, should it?  IA64 doesn't have
BIOS, either, it has EFI/UEFI, like ARM64...

	-hpa

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