diff options
| author | Glauber de Oliveira Costa <gcosta@redhat.com> | 2008-03-19 14:25:25 -0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-04-17 17:41:01 +0200 |
| commit | a6c422ccdb57924bd20ae408dba8e9db01d09677 (patch) | |
| tree | 3df5b830d56291ae024037fcda55ba405ddd306d /arch/x86/kernel/mpparse_32.c | |
| parent | 73bf102b1cadc53d418df02ba687769a9f916a6d (diff) | |
x86: fill cpu to apicid and present map in mpparse
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>
Diffstat (limited to 'arch/x86/kernel/mpparse_32.c')
| -rw-r--r-- | arch/x86/kernel/mpparse_32.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/arch/x86/kernel/mpparse_32.c b/arch/x86/kernel/mpparse_32.c index 6ea97163701f..a0cec74b80ef 100644 --- a/arch/x86/kernel/mpparse_32.c +++ b/arch/x86/kernel/mpparse_32.c @@ -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) |