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authorJiang Liu <jiang.liu@huawei.com>2013-09-02 07:57:34 +0400
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-09-24 03:39:39 +0400
commitca9f62ac783bf88c54143f8065adc0fc8df859c1 (patch)
treec22585a41438abe61565def29b3a055cb6ebad70 /include/acpi
parent4a10c2ac2f368583138b774ca41fac4207911983 (diff)
downloadlinux-ca9f62ac783bf88c54143f8065adc0fc8df859c1.tar.xz
ACPI / processor: Introduce apic_id in struct processor to save parsed APIC id
For cpu hot add, we evaluate _MAT or parse MADT twice to get APIC id, here is the code logic: acpi_processor_add() acpi_processor_get_info() acpi_get_cpuid() will evaluate _MAT or parse MADT; acpi_processor_hotadd_init() acpi_map_lsapic() will evaluate _MAT again; This can be done more effectively, this patch introduces apic_id in struct processor to save parsed APIC id, and then we can use it and remove the duplicated _MAT evaluation. 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>
Diffstat (limited to 'include/acpi')
-rw-r--r--include/acpi/processor.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/acpi/processor.h b/include/acpi/processor.h
index 66096d06925e..7816e45f5d5a 100644
--- a/include/acpi/processor.h
+++ b/include/acpi/processor.h
@@ -199,6 +199,7 @@ struct acpi_processor_flags {
struct acpi_processor {
acpi_handle handle;
u32 acpi_id;
+ u32 apic_id;
u32 id;
u32 pblk;
int performance_platform_limit;
@@ -314,6 +315,8 @@ static inline int acpi_processor_get_bios_limit(int cpu, unsigned int *limit)
/* in processor_core.c */
void acpi_processor_set_pdc(acpi_handle handle);
+int acpi_get_apicid(acpi_handle, int type, u32 acpi_id);
+int acpi_map_cpuid(int apic_id, u32 acpi_id);
int acpi_get_cpuid(acpi_handle, int type, u32 acpi_id);
/* in processor_throttling.c */