linux-kernel - Re: [Patch v3 1/2] introduce variable acpi

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Date:	Tue, 20 May 2014 00:57:19 +0200
From:	"Rafael J. Wysocki" <rjw@...ysocki.net>
To:	Baoquan He <bhe@...hat.com>
Cc:	linux-acpi@...r.kernel.org, linux-ia64@...r.kernel.org,
	linux-kernel@...r.kernel.org, dyoung@...hat.com
Subject: Re: [Patch v3 1/2] introduce variable acpi_lapic into ia64

On Monday, May 05, 2014 12:48:25 PM Baoquan He wrote:
> This variable was defined and assigned in x86, is used to indicate
> whether LAPIC exists in MADT. Now introduce it into ia64 to help
> make correct judgment when get information for acpi processor later.
> 
> Signed-off-by: Baoquan He <bhe@...hat.com>

This and [2/2] queued up for 3.16, thanks!

> ---
>  arch/ia64/include/asm/acpi.h | 1 +
>  arch/ia64/kernel/acpi.c      | 3 +++
>  2 files changed, 4 insertions(+)
> 
> diff --git a/arch/ia64/include/asm/acpi.h b/arch/ia64/include/asm/acpi.h
> index d651102..b478219 100644
> --- a/arch/ia64/include/asm/acpi.h
> +++ b/arch/ia64/include/asm/acpi.h
> @@ -85,6 +85,7 @@ ia64_acpi_release_global_lock (unsigned int *lock)
>  	((Acq) = ia64_acpi_release_global_lock(&facs->global_lock))
>  
>  #ifdef	CONFIG_ACPI
> +extern int acpi_lapic;
>  #define acpi_disabled 0	/* ACPI always enabled on IA64 */
>  #define acpi_noirq 0	/* ACPI always enabled on IA64 */
>  #define acpi_pci_disabled 0 /* ACPI PCI always enabled on IA64 */
> diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
> index 0d407b3..615ef81 100644
> --- a/arch/ia64/kernel/acpi.c
> +++ b/arch/ia64/kernel/acpi.c
> @@ -56,6 +56,7 @@
>  
>  #define PREFIX			"ACPI: "
>  
> +int acpi_lapic;
>  unsigned int acpi_cpei_override;
>  unsigned int acpi_cpei_phys_cpuid;
>  
> @@ -676,6 +677,8 @@ int __init early_acpi_boot_init(void)
>  	if (ret < 1)
>  		printk(KERN_ERR PREFIX
>  		       "Error parsing MADT - no LAPIC entries\n");
> +	else
> +		acpi_lapic = 1;
>  
>  #ifdef CONFIG_SMP
>  	if (available_cpus == 0) {
> 

-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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