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| author | Mike Travis <travis@sgi.com> | 2008-12-17 15:21:39 -0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-12-18 12:08:05 +0100 |
| commit | 3b11ce7f542e415c90267b4482d4611410b468e6 (patch) | |
| tree | 26366b9f25af830b71c78504bbadd94896a8b82a /arch/x86/kernel/apic.c | |
| parent | a775a38b1353161a6d7af86b667d6523c12c1a37 (diff) | |
| download | blackbird-op-linux-3b11ce7f542e415c90267b4482d4611410b468e6.tar.gz blackbird-op-linux-3b11ce7f542e415c90267b4482d4611410b468e6.zip | |
x86: use possible_cpus=NUM to extend the possible cpus allowed
Impact: add new boot parameter
Use possible_cpus=NUM kernel parameter to extend the number of possible
cpus.
The ability to HOTPLUG ON cpus that are "possible" but not "present" is
dealt with in a later patch.
Signed-off-by: Mike Travis <travis@sgi.com>
Diffstat (limited to 'arch/x86/kernel/apic.c')
| -rw-r--r-- | arch/x86/kernel/apic.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/arch/x86/kernel/apic.c b/arch/x86/kernel/apic.c index 93cf2d13f335..f7a32a3beb2f 100644 --- a/arch/x86/kernel/apic.c +++ b/arch/x86/kernel/apic.c @@ -1819,28 +1819,32 @@ void disconnect_bsp_APIC(int virt_wire_setup) void __cpuinit generic_processor_info(int apicid, int version) { int cpu; - cpumask_t tmp_map; /* * Validate version */ if (version == 0x0) { pr_warning("BIOS bug, APIC version is 0 for CPU#%d! " - "fixing up to 0x10. (tell your hw vendor)\n", - version); + "fixing up to 0x10. (tell your hw vendor)\n", + version); version = 0x10; } apic_version[apicid] = version; - if (num_processors >= NR_CPUS) { - pr_warning("WARNING: NR_CPUS limit of %i reached." - " Processor ignored.\n", NR_CPUS); + if (num_processors >= nr_cpu_ids) { + int max = nr_cpu_ids; + int thiscpu = max + disabled_cpus; + + pr_warning( + "ACPI: NR_CPUS/possible_cpus limit of %i reached." + " Processor %d/0x%x ignored.\n", max, thiscpu, apicid); + + disabled_cpus++; return; } num_processors++; - cpus_complement(tmp_map, cpu_present_map); - cpu = first_cpu(tmp_map); + cpu = cpumask_next_zero(-1, cpu_present_mask); physid_set(apicid, phys_cpu_present_map); if (apicid == boot_cpu_physical_apicid) { |
