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

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Message-ID: <20140524094247.GA1873@dhcp-17-102.nay.redhat.com>
Date:	Sat, 24 May 2014 17:42:47 +0800
From:	Baoquan He <bhe@...hat.com>
To:	"Rafael J. Wysocki" <rjw@...ysocki.net>
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 05/20/14 at 12:57am, Rafael J. Wysocki wrote:
> 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!

Thanks, Rafael!

> 
> > ---
> >  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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