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x86 / ACPI: simplify _acpi_map_lsapic()

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In acpi_register_lapic(), it will generates a new logical cpu
number and maps to the local APIC id, this logical cpu number
can be returned to simplify _acpi_map_lsapic() implementation.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Jiang Liu
2013-09-02 11:57:36 +08:00
committed by Rafael J. Wysocki
parent d536bf3dc9
commit 7e1f85f96d
3 changed files with 22 additions and 38 deletions
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8
arch/x86/kernel/apic/apic.c
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@@ -2107,7 +2107,7 @@ void disconnect_bsp_APIC(int virt_wire_setup)
apic_write(APIC_LVT1, value);
}
void generic_processor_info(int apicid, int version)
int generic_processor_info(int apicid, int version)
{
int cpu, max = nr_cpu_ids;
bool boot_cpu_detected = physid_isset(boot_cpu_physical_apicid,
@@ -2127,7 +2127,7 @@ void generic_processor_info(int apicid, int version)
" Processor %d/0x%x ignored.\n", max, thiscpu, apicid);
disabled_cpus++;
return;
return -ENODEV;
}
if (num_processors >= nr_cpu_ids) {
@@ -2138,7 +2138,7 @@ void generic_processor_info(int apicid, int version)
" Processor %d/0x%x ignored.\n", max, thiscpu, apicid);
disabled_cpus++;
return;
return -EINVAL;
}
num_processors++;
@@ -2183,6 +2183,8 @@ void generic_processor_info(int apicid, int version)
#endif
set_cpu_possible(cpu, true);
set_cpu_present(cpu, true);
return cpu;
}
int hard_smp_processor_id(void)