From f1157141636848f52c5f74040bed0ba355cf59b7 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 7 Dec 2010 00:55:29 -0800 Subject: [PATCH] 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 Cc: Suresh Siddha Cc: "Eric W. Biederman" LKML-Reference: <4CFDF681.3030509@kernel.org> Signed-off-by: Thomas Gleixner --- arch/x86/include/asm/apic.h | 1 - arch/x86/kernel/apic/apic.c | 24 ++---------------------- arch/x86/kernel/mpparse.c | 8 ++------ arch/x86/mm/amdtopology_64.c | 1 - 4 files changed, 4 insertions(+), 30 deletions(-) diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h index 1cc42cfa1372..5e3969c36d7f 100644 --- 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 c02bf135de9d..f507f311d44d 100644 --- 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 db0b70317949..27ccb7075342 100644 --- 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 51fae9cfdecb..08a0069b87a5 100644 --- 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) -- 2.39.5