diff options
Diffstat (limited to 'arch/x86/kernel/sfi.c')
| -rw-r--r-- | arch/x86/kernel/sfi.c | 120 |
1 files changed, 0 insertions, 120 deletions
diff --git a/arch/x86/kernel/sfi.c b/arch/x86/kernel/sfi.c deleted file mode 100644 index dd4c281..0000000 --- a/arch/x86/kernel/sfi.c +++ /dev/null @@ -1,120 +0,0 @@ -/* - * sfi.c - x86 architecture SFI support. - * - * Copyright (c) 2009, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * - */ - -#define KMSG_COMPONENT "SFI" -#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt - -#include <linux/acpi.h> -#include <linux/init.h> -#include <linux/sfi.h> -#include <linux/io.h> - -#include <asm/io_apic.h> -#include <asm/mpspec.h> -#include <asm/setup.h> -#include <asm/apic.h> - -#ifdef CONFIG_X86_LOCAL_APIC -static unsigned long sfi_lapic_addr __initdata = APIC_DEFAULT_PHYS_BASE; - -static void __init mp_sfi_register_lapic_address(unsigned long address) -{ - mp_lapic_addr = address; - - set_fixmap_nocache(FIX_APIC_BASE, mp_lapic_addr); - if (boot_cpu_physical_apicid == -1U) - boot_cpu_physical_apicid = read_apic_id(); - - pr_info("Boot CPU = %d\n", boot_cpu_physical_apicid); -} - -/* All CPUs enumerated by SFI must be present and enabled */ -static void __cpuinit mp_sfi_register_lapic(u8 id) -{ - if (MAX_APICS - id <= 0) { - pr_warning("Processor #%d invalid (max %d)\n", - id, MAX_APICS); - return; - } - - pr_info("registering lapic[%d]\n", id); - - generic_processor_info(id, GET_APIC_VERSION(apic_read(APIC_LVR))); -} - -static int __init sfi_parse_cpus(struct sfi_table_header *table) -{ - struct sfi_table_simple *sb; - struct sfi_cpu_table_entry *pentry; - int i; - int cpu_num; - - sb = (struct sfi_table_simple *)table; - cpu_num = SFI_GET_NUM_ENTRIES(sb, struct sfi_cpu_table_entry); - pentry = (struct sfi_cpu_table_entry *)sb->pentry; - - for (i = 0; i < cpu_num; i++) { - mp_sfi_register_lapic(pentry->apic_id); - pentry++; - } - - smp_found_config = 1; - return 0; -} -#endif /* CONFIG_X86_LOCAL_APIC */ - -#ifdef CONFIG_X86_IO_APIC - -static int __init sfi_parse_ioapic(struct sfi_table_header *table) -{ - struct sfi_table_simple *sb; - struct sfi_apic_table_entry *pentry; - int i, num; - - sb = (struct sfi_table_simple *)table; - num = SFI_GET_NUM_ENTRIES(sb, struct sfi_apic_table_entry); - pentry = (struct sfi_apic_table_entry *)sb->pentry; - - for (i = 0; i < num; i++) { - mp_register_ioapic(i, pentry->phys_addr, gsi_top); - pentry++; - } - - WARN(pic_mode, KERN_WARNING - "SFI: pic_mod shouldn't be 1 when IOAPIC table is present\n"); - pic_mode = 0; - return 0; -} -#endif /* CONFIG_X86_IO_APIC */ - -/* - * sfi_platform_init(): register lapics & io-apics - */ -int __init sfi_platform_init(void) -{ -#ifdef CONFIG_X86_LOCAL_APIC - mp_sfi_register_lapic_address(sfi_lapic_addr); - sfi_table_parse(SFI_SIG_CPUS, NULL, NULL, sfi_parse_cpus); -#endif -#ifdef CONFIG_X86_IO_APIC - sfi_table_parse(SFI_SIG_APIC, NULL, NULL, sfi_parse_ioapic); -#endif - return 0; -} |