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authorAndi Kleen <ak@suse.de>2005-07-28 21:15:27 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2005-07-28 21:45:58 -0700
commit61b1b2d0239da82c0bed8adaa1d070c6551d4afd (patch)
tree121b652c8b6915d17beb622086e362a9e9c1733e /arch/x86_64/kernel/mpparse.c
parent5b943fbfaf0dbdd3cd9ff2dda100f0b8c47a7d8c (diff)
[PATCH] x86_64: Move cpu_present/possible_map parsing earlier
Various code needs this information now before the actual SMP bootup. Instead of computing it on the fly while booting the other CPUs set it up now while initial MPtable/MADT parsing. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/x86_64/kernel/mpparse.c')
-rw-r--r--arch/x86_64/kernel/mpparse.c17
1 files changed, 11 insertions, 6 deletions
diff --git a/arch/x86_64/kernel/mpparse.c b/arch/x86_64/kernel/mpparse.c
index 9c5aa2a790c..08abf9f5b15 100644
--- a/arch/x86_64/kernel/mpparse.c
+++ b/arch/x86_64/kernel/mpparse.c
@@ -109,7 +109,7 @@ static int __init mpf_checksum(unsigned char *mp, int len)
static void __init MP_processor_info (struct mpc_config_processor *m)
{
- int ver;
+ int ver, cpu;
static int found_bsp=0;
if (!(m->mpc_cpuflag & CPU_ENABLED))
@@ -131,7 +131,7 @@ static void __init MP_processor_info (struct mpc_config_processor *m)
return;
}
- num_processors++;
+ cpu = num_processors++;
if (m->mpc_apicid > MAX_APICS) {
printk(KERN_ERR "Processor #%d INVALID. (Max ID: %d).\n",
@@ -155,13 +155,18 @@ static void __init MP_processor_info (struct mpc_config_processor *m)
* in same order as logical cpu numbers. Hence the first
* entry is BSP, and so on.
*/
+ cpu = 0;
+
bios_cpu_apicid[0] = m->mpc_apicid;
x86_cpu_to_apicid[0] = m->mpc_apicid;
found_bsp = 1;
- } else {
- bios_cpu_apicid[num_processors - found_bsp] = m->mpc_apicid;
- x86_cpu_to_apicid[num_processors - found_bsp] = m->mpc_apicid;
- }
+ } else
+ cpu = num_processors - found_bsp;
+ bios_cpu_apicid[cpu] = m->mpc_apicid;
+ x86_cpu_to_apicid[cpu] = m->mpc_apicid;
+
+ cpu_set(cpu, cpu_possible_map);
+ cpu_set(cpu, cpu_present_map);
}
static void __init MP_bus_info (struct mpc_config_bus *m)