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Commit 746f2eb7 authored by Cyrill Gorcunov's avatar Cyrill Gorcunov Committed by Ingo Molnar
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x86: apic_32.c - add lapic resource 



Add lapic resource into kernel resource map and mark it as busy

Signed-off-by: default avatarCyrill Gorcunov <gorcunov@gmail.com>
Cc: "Maciej W. Rozycki" <macro@linux-mips.org>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
CC: Maciej W. Rozycki <macro@linux-mips.org>
parent 5d061e39

arch/x86/kernel/apic_32.c

+23 −0
Original line number Diff line number Diff line
@@ -82,6 +82,11 @@ int pic_mode; 
/* Have we found an MP table */

int smp_found_config;



static struct resource lapic_resource = {

	.name = "Local APIC",

	.flags = IORESOURCE_MEM | IORESOURCE_BUSY,

};



static unsigned int calibration_result;



static int lapic_next_event(unsigned long delta,
@@ -1720,3 +1725,21 @@ static int __init apic_set_verbosity(char *str) 
}

__setup("apic=", apic_set_verbosity);



static int __init lapic_insert_resource(void)

{

	if (!apic_phys)

		return -1;



	/* Put local APIC into the resource map. */

	lapic_resource.start = apic_phys;

	lapic_resource.end = lapic_resource.start + PAGE_SIZE - 1;

	insert_resource(&iomem_resource, &lapic_resource);



	return 0;

}



/*

 * need call insert after e820_reserve_resources()

 * that is using request_resource

 */

late_initcall(lapic_insert_resource);