x86, apic: Remove early_init_lapic_mapping()
It is almost the same as smp_register_lapic_addr(). We just need to
let smp_read_mpc() call smp_register_lapic_addr() when early==1.
Add the apic_printk to smp_register_lapic_address()
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
LKML-Reference: <4CFDF681.3030509@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index c02bf13..f507f31 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -1630,28 +1630,6 @@
}
#endif
-#ifdef CONFIG_X86_64
-void __init early_init_lapic_mapping(void)
-{
- /*
- * If no local APIC can be found then go out
- * : it means there is no mpatable and MADT
- */
- if (!smp_found_config)
- return;
-
- set_fixmap_nocache(FIX_APIC_BASE, mp_lapic_addr);
- apic_printk(APIC_VERBOSE, "mapped APIC to %16lx (%16lx)\n",
- APIC_BASE, mp_lapic_addr);
-
- /*
- * Fetch the APIC ID of the BSP in case we have a
- * default configuration (or the MP table is broken).
- */
- boot_cpu_physical_apicid = read_apic_id();
-}
-#endif
-
/**
* init_apic_mappings - initialize APIC mappings
*/
@@ -1707,6 +1685,8 @@
mp_lapic_addr = address;
set_fixmap_nocache(FIX_APIC_BASE, address);
+ apic_printk(APIC_VERBOSE, "mapped APIC to %16lx (%16lx)\n",
+ APIC_BASE, mp_lapic_addr);
if (boot_cpu_physical_apicid == -1U) {
boot_cpu_physical_apicid = read_apic_id();
apic_version[boot_cpu_physical_apicid] =
diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c
index db0b703..27ccb70 100644
--- a/arch/x86/kernel/mpparse.c
+++ b/arch/x86/kernel/mpparse.c
@@ -289,17 +289,13 @@
#ifdef CONFIG_X86_32
generic_mps_oem_check(mpc, oem, str);
#endif
- /* save the local APIC address, it might be non-default */
- if (!acpi_lapic)
- mp_lapic_addr = mpc->lapic;
-
- if (early)
- return 1;
-
/* Initialize the lapic mapping */
if (!acpi_lapic)
register_lapic_address(mpc->lapic);
+ if (early)
+ return 1;
+
if (mpc->oemptr)
x86_init.mpparse.smp_read_mpc_oem(mpc);