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| author | Mike Travis <travis@sgi.com> | 2007-10-19 20:35:03 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2007-10-19 20:35:03 +0200 |
| commit | 71b31233a215be27e2efbcc0e739cbebb0bde078 (patch) | |
| tree | 3143e0964ab6a439dc5cc0aac24557828ba51c11 | |
| parent | b6278470b7cdbf2bf6ba7345130d83924451a51a (diff) | |
| download | linux-3.10-71b31233a215be27e2efbcc0e739cbebb0bde078.tar.gz linux-3.10-71b31233a215be27e2efbcc0e739cbebb0bde078.tar.bz2 linux-3.10-71b31233a215be27e2efbcc0e739cbebb0bde078.zip | |
x86: acpi use cpu_physical_id
This is from an earlier message from Christoph Lameter:
processor_core.c currently tries to determine the apicid by special casing
for IA64 and x86. The desired information is readily available via
cpu_physical_id()
on IA64, i386 and x86_64.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Additionally, boot_cpu_id needed to be exported to fix compile errors in
dma code when !CONFIG_SMP.
Signed-off-by: Mike Travis <travis@sgi.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | arch/x86/kernel/mpparse_64.c | 2 | ||||
| -rw-r--r-- | drivers/acpi/processor_core.c | 8 |
2 files changed, 3 insertions, 7 deletions
diff --git a/arch/x86/kernel/mpparse_64.c b/arch/x86/kernel/mpparse_64.c index 4336c0fc3b8..ef4aab12358 100644 --- a/arch/x86/kernel/mpparse_64.c +++ b/arch/x86/kernel/mpparse_64.c @@ -57,6 +57,8 @@ unsigned long mp_lapic_addr = 0; /* Processor that is doing the boot up */ unsigned int boot_cpu_id = -1U; +EXPORT_SYMBOL(boot_cpu_id); + /* Internal processor count */ unsigned int num_processors __cpuinitdata = 0; diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index 9f11dc296cd..fd48110f084 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -421,12 +421,6 @@ static int map_lsapic_id(struct acpi_subtable_header *entry, return 0; } -#ifdef CONFIG_IA64 -#define arch_cpu_to_apicid ia64_cpu_to_sapicid -#else -#define arch_cpu_to_apicid x86_cpu_to_apicid -#endif - static int map_madt_entry(u32 acpi_id) { unsigned long madt_end, entry; @@ -500,7 +494,7 @@ static int get_cpu_id(acpi_handle handle, u32 acpi_id) return apic_id; for (i = 0; i < NR_CPUS; ++i) { - if (arch_cpu_to_apicid[i] == apic_id) + if (cpu_physical_id(i) == apic_id) return i; } return -1; |