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Date: Fri, 6 Aug 2010 19:15:36 -0700 From: Yinghai Lu <yinghai@...nel.org> To: Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>, "H. Peter Anvin" <hpa@...or.com> Cc: Andrew Morton <akpm@...ux-foundation.org>, "Eric W. Biederman" <ebiederm@...ssion.com>, linux-kernel@...r.kernel.org, Yinghai Lu <yinghai@...nel.org> Subject: [PATCH 03/10] x86: remove early_init_lapic_mapping It is almost the same as smp_register_lapic_addr() Just need to make smp_read_mpc() call smp_register_lapic_addr when early==1. also add printing out in smp_register_lapic_address() Signed-off-by: Yinghai Lu <yinghai@...nel.org> --- arch/x86/include/asm/apic.h | 1 - arch/x86/kernel/apic/apic.c | 24 ++---------------------- arch/x86/kernel/mpparse.c | 8 ++------ arch/x86/mm/k8topology_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 dd2a9b1..171b6ab 100644 --- a/arch/x86/include/asm/apic.h +++ b/arch/x86/include/asm/apic.h @@ -244,7 +244,6 @@ extern void enable_NMI_through_LVT0(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 19a74b7..95a31b1 100644 --- a/arch/x86/kernel/apic/apic.c +++ b/arch/x86/kernel/apic/apic.c @@ -1560,28 +1560,6 @@ 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 */ @@ -1637,6 +1615,8 @@ void __init smp_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 da0353a..3e25213 100644 --- a/arch/x86/kernel/mpparse.c +++ b/arch/x86/kernel/mpparse.c @@ -288,17 +288,13 @@ 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; + smp_register_lapic_address(mpc->lapic); if (early) return 1; - /* Initialize the lapic mapping */ - if (!acpi_lapic) - smp_register_lapic_address(mpc->lapic); - if (mpc->oemptr) x86_init.mpparse.smp_read_mpc_oem(mpc); diff --git a/arch/x86/mm/k8topology_64.c b/arch/x86/mm/k8topology_64.c index 970ed57..ef9b8be 100644 --- a/arch/x86/mm/k8topology_64.c +++ b/arch/x86/mm/k8topology_64.c @@ -64,7 +64,6 @@ static __init void early_get_boot_cpu_id(void) if (smp_found_config) early_get_smp_config(); #endif - early_init_lapic_mapping(); } int __init k8_get_nodes(struct bootnode *physnodes) -- 1.6.4.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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