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x86: fill cpu to apicid and present map in mpparse

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This is the way x86_64 does, and complement the already
present patch that does the bios cpu to apicid mapping here

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Glauber de Oliveira Costa
2008-03-19 14:25:25 -03:00
committed by Ingo Molnar
parent 73bf102b1c
commit a6c422ccdb
2 changed files with 24 additions and 19 deletions
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arch/x86/kernel/mpparse_32.c
+17 -2
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@@ -105,7 +105,8 @@ static struct mpc_config_translation *translation_table[MAX_MPC_ENTRY] __cpuinit
static void __cpuinit MP_processor_info (struct mpc_config_processor *m)
{
int ver, apicid;
int ver, apicid, cpu;
cpumask_t tmp_map;
physid_mask_t phys_cpu;
if (!(m->mpc_cpuflag & CPU_ENABLED)) {
@@ -198,6 +199,16 @@ static void __cpuinit MP_processor_info (struct mpc_config_processor *m)
cpu_set(num_processors, cpu_possible_map);
num_processors++;
cpus_complement(tmp_map, cpu_present_map);
cpu = first_cpu(tmp_map);
if (m->mpc_cpuflag & CPU_BOOTPROCESSOR)
/*
* x86_bios_cpu_apicid is required to have processors listed
* in same order as logical cpu numbers. Hence the first
* entry is BSP, and so on.
*/
cpu = 0;
/*
* Would be preferable to switch to bigsmp when CONFIG_HOTPLUG_CPU=y
@@ -220,12 +231,16 @@ static void __cpuinit MP_processor_info (struct mpc_config_processor *m)
}
/* are we being called early in kernel startup? */
if (x86_cpu_to_apicid_early_ptr) {
u16 *cpu_to_apicid = x86_cpu_to_apicid_early_ptr;
u16 *bios_cpu_apicid = x86_bios_cpu_apicid_early_ptr;
cpu_to_apicid[cpu] = m->mpc_apicid;
bios_cpu_apicid[num_processors - 1] = m->mpc_apicid;
} else {
int cpu = num_processors - 1;
per_cpu(x86_cpu_to_apicid, cpu) = m->mpc_apicid;
per_cpu(x86_bios_cpu_apicid, cpu) = m->mpc_apicid;
}
cpu_set(cpu, cpu_present_map);
}
static void __init MP_bus_info (struct mpc_config_bus *m)