Eric Lee / smarc-fsl-linux-kernel | Embedian Git Server

98a79d6a5 cpumask: centralize cpu_online_map and cpu_possible_map ... Browse Code »

Impact: cleanup

Each SMP arch defines these themselves. Move them to a central
location.

Twists:
1) Some archs (m32, parisc, s390) set possible_map to all 1, so we add a
CONFIG_INIT_ALL_POSSIBLE for this rather than break them.

2) mips and sparc32 '#define cpu_possible_map phys_cpu_present_map'.
Those archs simply have phys_cpu_present_map replaced everywhere.

3) Alpha defined cpu_possible_map to cpu_present_map; this is tricky
so I just manipulate them both in sync.

4) IA64, cris and m32r have gratuitous 'extern cpumask_t cpu_possible_map'
declarations.

Signed-off-by: Rusty Russell
Reviewed-by: Grant Grundler
Tested-by: Tony Luck
Acked-by: Ingo Molnar
Cc: Mike Travis
Cc: ink@jurassic.park.msu.ru
Cc: rmk@arm.linux.org.uk
Cc: starvik@axis.com
Cc: tony.luck@intel.com
Cc: takata@linux-m32r.org
Cc: ralf@linux-mips.org
Cc: grundler@parisc-linux.org
Cc: paulus@samba.org
Cc: schwidefsky@de.ibm.com
Cc: lethal@linux-sh.org
Cc: wli@holomorphy.com
Cc: davem@davemloft.net
Cc: jdike@addtoit.com
Cc: mingo@redhat.com

Rusty Russell
2008-12-13 18:49:41 +0800

smp.h 177 Bytes

edit raw blame history

1 2 3 4 5 6 7 8 9 10

#ifndef __ASM_SMP_H
#define __ASM_SMP_H

#include <linux/cpumask.h>

extern cpumask_t phys_cpu_present_map;

#define raw_smp_processor_id() (current_thread_info()->cpu)

#endif