提交 c0104d38 编写于 作者: Y Yinghai Lu 提交者: Thomas Gleixner

x86, apic: Unify identical register_lapic_address() functions

They are the same, move the common function to apic.c to allow
further cleanups.
Signed-off-by: NYinghai Lu <yinghai@kernel.org>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Len Brown <lenb@kernel.org>
LKML-Reference: <4CFDF675.4060305@kernel.org>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
上级 51ddafcb
......@@ -234,6 +234,7 @@ extern void init_bsp_APIC(void);
extern void setup_local_APIC(void);
extern void end_local_APIC_setup(void);
extern void init_apic_mappings(void);
void register_lapic_address(unsigned long address);
extern void setup_boot_APIC_clock(void);
extern void setup_secondary_APIC_clock(void);
extern int APIC_init_uniprocessor(void);
......
......@@ -847,18 +847,6 @@ static int __init acpi_parse_fadt(struct acpi_table_header *table)
* returns 0 on success, < 0 on error
*/
static void __init acpi_register_lapic_address(unsigned long address)
{
mp_lapic_addr = address;
set_fixmap_nocache(FIX_APIC_BASE, address);
if (boot_cpu_physical_apicid == -1U) {
boot_cpu_physical_apicid = read_apic_id();
apic_version[boot_cpu_physical_apicid] =
GET_APIC_VERSION(apic_read(APIC_LVR));
}
}
static int __init early_acpi_parse_madt_lapic_addr_ovr(void)
{
int count;
......@@ -880,7 +868,7 @@ static int __init early_acpi_parse_madt_lapic_addr_ovr(void)
return count;
}
acpi_register_lapic_address(acpi_lapic_addr);
register_lapic_address(acpi_lapic_addr);
return count;
}
......@@ -907,7 +895,7 @@ static int __init acpi_parse_madt_lapic_entries(void)
return count;
}
acpi_register_lapic_address(acpi_lapic_addr);
register_lapic_address(acpi_lapic_addr);
count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_SAPIC,
acpi_parse_sapic, MAX_APICS);
......
......@@ -1702,6 +1702,18 @@ void __init init_apic_mappings(void)
}
}
void __init register_lapic_address(unsigned long address)
{
mp_lapic_addr = address;
set_fixmap_nocache(FIX_APIC_BASE, address);
if (boot_cpu_physical_apicid == -1U) {
boot_cpu_physical_apicid = read_apic_id();
apic_version[boot_cpu_physical_apicid] =
GET_APIC_VERSION(apic_read(APIC_LVR));
}
}
/*
* This initializes the IO-APIC and APIC hardware if this is
* a UP kernel.
......
......@@ -275,18 +275,6 @@ static void __init smp_dump_mptable(struct mpc_table *mpc, unsigned char *mpt)
void __init default_smp_read_mpc_oem(struct mpc_table *mpc) { }
static void __init smp_register_lapic_address(unsigned long address)
{
mp_lapic_addr = address;
set_fixmap_nocache(FIX_APIC_BASE, address);
if (boot_cpu_physical_apicid == -1U) {
boot_cpu_physical_apicid = read_apic_id();
apic_version[boot_cpu_physical_apicid] =
GET_APIC_VERSION(apic_read(APIC_LVR));
}
}
static int __init smp_read_mpc(struct mpc_table *mpc, unsigned early)
{
char str[16];
......@@ -310,7 +298,7 @@ static int __init smp_read_mpc(struct mpc_table *mpc, unsigned early)
/* Initialize the lapic mapping */
if (!acpi_lapic)
smp_register_lapic_address(mpc->lapic);
register_lapic_address(mpc->lapic);
if (mpc->oemptr)
x86_init.mpparse.smp_read_mpc_oem(mpc);
......
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