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/include/asm/apic.h b/arch/x86/include/asm/apic.h
index 1cc42cf..5e3969c 100644 (file)
--- a/arch/x86/include/asm/apic.h
+++ b/arch/x86/include/asm/apic.h
@@ -245,7 +245,6 @@ extern int apic_force_enable(void);
  * On 32bit this is mach-xxx local
  */
 #ifdef CONFIG_X86_64
-extern void early_init_lapic_mapping(void);
 extern int apic_is_clustered_box(void);
 #else
 static inline int apic_is_clustered_box(void)

diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index c02bf13..f507f31 100644 (file)
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -1630,28 +1630,6 @@ no_apic:
 }
 #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 @@ void __init register_lapic_address(unsigned long address)
        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 (file)
--- a/arch/x86/kernel/mpparse.c
+++ b/arch/x86/kernel/mpparse.c
@@ -289,17 +289,13 @@ static int __init smp_read_mpc(struct mpc_table *mpc, unsigned early)
 #ifdef CONFIG_X86_32
        generic_mps_oem_check(mpc, oem, str);
 #endif
-       /* save the local APIC address, it might be non-default */
+       /* Initialize the lapic mapping */
        if (!acpi_lapic)
-               mp_lapic_addr = mpc->lapic;
+               register_lapic_address(mpc->lapic);
 
        if (early)
                return 1;
 
-       /* Initialize the lapic mapping */
-       if (!acpi_lapic)
-               register_lapic_address(mpc->lapic);
-
        if (mpc->oemptr)
                x86_init.mpparse.smp_read_mpc_oem(mpc);
 

diff --git a/arch/x86/mm/amdtopology_64.c b/arch/x86/mm/amdtopology_64.c
index 51fae9c..08a0069 100644 (file)
--- a/arch/x86/mm/amdtopology_64.c
+++ b/arch/x86/mm/amdtopology_64.c
@@ -66,7 +66,6 @@ static __init void early_get_boot_cpu_id(void)
        if (smp_found_config)
                early_get_smp_config();
 #endif
-       early_init_lapic_mapping();
 }
 
 int __init amd_get_nodes(struct bootnode *physnodes)