# This is a BitKeeper generated diff -Nru style patch. # # ChangeSet # 2004/03/22 19:51:11-05:00 len.brown@intel.com # [ACPI] delete POWER_OF_TWO array (Pavel Machek) # # drivers/acpi/processor.c # 2004/03/22 19:49:34-05:00 len.brown@intel.com +1 -3 # delete POWER_OF_TWO array (Pavel Machek) # # BitKeeper/deleted/.del-boot.c~a0dfed61fc52b053 # 2004/03/22 16:44:17-05:00 len.brown@intel.com +0 -0 # Delete: arch/x86_64/kernel/acpi/boot.c # diff -Nru a/arch/x86_64/kernel/acpi/boot.c b/arch/x86_64/kernel/acpi/boot.c --- a/arch/x86_64/kernel/acpi/boot.c Mon Mar 22 19:51:18 2004 +++ /dev/null Wed Dec 31 16:00:00 1969 @@ -1,557 +0,0 @@ -/* - * acpi.c - Architecture-Specific Low-Level ACPI Support - * - * Copyright (C) 2001, 2002 Paul Diefenbaugh - * Copyright (C) 2001 Jun Nakajima - * Copyright (C) 2001 Patrick Mochel - * Copyright (C) 2002 Andi Kleen, SuSE Labs (x86-64 port) - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#define PREFIX "ACPI: " - -int acpi_noirq __initdata; /* skip ACPI IRQ initialization */ -int acpi_ht __initdata = 1; /* enable HT */ - -int acpi_lapic; -int acpi_ioapic; -int acpi_strict; - -/* -------------------------------------------------------------------------- - Boot-time Configuration - -------------------------------------------------------------------------- */ - -#ifdef CONFIG_ACPI_BOOT - -enum acpi_irq_model_id acpi_irq_model; - -/* rely on all ACPI tables being in the direct mapping */ -char * -__acpi_map_table ( - unsigned long phys_addr, - unsigned long size) -{ - if (!phys_addr || !size) - return NULL; - - if (phys_addr < (end_pfn_map << PAGE_SHIFT)) - return __va(phys_addr); - - return NULL; -} - -#ifdef CONFIG_X86_LOCAL_APIC - -static u64 acpi_lapic_addr __initdata = APIC_DEFAULT_PHYS_BASE; - - -static int __init -acpi_parse_madt ( - unsigned long phys_addr, - unsigned long size) -{ - struct acpi_table_madt *madt = NULL; - - if (!phys_addr || !size) - return -EINVAL; - - madt = (struct acpi_table_madt *) __acpi_map_table(phys_addr, size); - if (!madt) { - printk(KERN_WARNING PREFIX "Unable to map MADT\n"); - return -ENODEV; - } - - if (madt->lapic_address) - acpi_lapic_addr = (u64) madt->lapic_address; - - printk(KERN_INFO PREFIX "Local APIC address 0x%016x\n", - madt->lapic_address); - - return 0; -} - - -static int __init -acpi_parse_lapic ( - acpi_table_entry_header *header) -{ - struct acpi_table_lapic *processor = NULL; - - processor = (struct acpi_table_lapic*) header; - if (!processor) - return -EINVAL; - - acpi_table_print_madt_entry(header); - - /* no utility in registering a disabled processor */ - if (processor->flags.enabled == 0) - return 0; - - - mp_register_lapic ( - processor->id, /* APIC ID */ - processor->flags.enabled); /* Enabled? */ - - return 0; -} - - -static int __init -acpi_parse_lapic_addr_ovr ( - acpi_table_entry_header *header) -{ - struct acpi_table_lapic_addr_ovr *lapic_addr_ovr = NULL; - - lapic_addr_ovr = (struct acpi_table_lapic_addr_ovr*) header; - if (!lapic_addr_ovr) - return -EINVAL; - - acpi_lapic_addr = lapic_addr_ovr->address; - - return 0; -} - - -static int __init -acpi_parse_lapic_nmi ( - acpi_table_entry_header *header) -{ - struct acpi_table_lapic_nmi *lapic_nmi = NULL; - - lapic_nmi = (struct acpi_table_lapic_nmi*) header; - if (!lapic_nmi) - return -EINVAL; - - acpi_table_print_madt_entry(header); - - if (lapic_nmi->lint != 1) - printk(KERN_WARNING PREFIX "NMI not connected to LINT 1!\n"); - - return 0; -} - -#endif /*CONFIG_X86_LOCAL_APIC*/ - -#ifdef CONFIG_X86_IO_APIC - -static int __init -acpi_parse_ioapic ( - acpi_table_entry_header *header) -{ - struct acpi_table_ioapic *ioapic = NULL; - - ioapic = (struct acpi_table_ioapic*) header; - if (!ioapic) - return -EINVAL; - - acpi_table_print_madt_entry(header); - - mp_register_ioapic ( - ioapic->id, - ioapic->address, - ioapic->global_irq_base); - - return 0; -} - - -static int __init -acpi_parse_int_src_ovr ( - acpi_table_entry_header *header) -{ - struct acpi_table_int_src_ovr *intsrc = NULL; - - intsrc = (struct acpi_table_int_src_ovr*) header; - if (!intsrc) - return -EINVAL; - - acpi_table_print_madt_entry(header); - - mp_override_legacy_irq ( - intsrc->bus_irq, - intsrc->flags.polarity, - intsrc->flags.trigger, - intsrc->global_irq); - - return 0; -} - - -static int __init -acpi_parse_nmi_src ( - acpi_table_entry_header *header) -{ - struct acpi_table_nmi_src *nmi_src = NULL; - - nmi_src = (struct acpi_table_nmi_src*) header; - if (!nmi_src) - return -EINVAL; - - acpi_table_print_madt_entry(header); - - /* TBD: Support nimsrc entries? */ - - return 0; -} - -#endif /*CONFIG_X86_IO_APIC*/ - -#ifdef CONFIG_HPET_TIMER -static int __init -acpi_parse_hpet ( - unsigned long phys_addr, - unsigned long size) -{ - struct acpi_table_hpet *hpet_tbl; - - hpet_tbl = __va(phys_addr); - - if (hpet_tbl->addr.space_id != ACPI_SPACE_MEM) { - printk(KERN_WARNING "acpi: HPET timers must be located in memory.\n"); - return -1; - } - - vxtime.hpet_address = hpet_tbl->addr.addrl | - ((long) hpet_tbl->addr.addrh << 32); - - printk(KERN_INFO "acpi: HPET id: %#x base: %#lx\n", - hpet_tbl->id, vxtime.hpet_address); - - return 0; -} -#endif - -#ifdef CONFIG_ACPI_BUS -/* - * "acpi_pic_sci=level" (current default) - * programs the PIC-mode SCI to Level Trigger. - * (NO-OP if the BIOS set Level Trigger already) - * - * If a PIC-mode SCI is not recognized or gives spurious IRQ7's - * it may require Edge Trigger -- use "acpi_pic_sci=edge" - * (NO-OP if the BIOS set Edge Trigger already) - * - * Port 0x4d0-4d1 are ECLR1 and ECLR2, the Edge/Level Control Registers - * for the 8259 PIC. bit[n] = 1 means irq[n] is Level, otherwise Edge. - * ECLR1 is IRQ's 0-7 (IRQ 0, 1, 2 must be 0) - * ECLR2 is IRQ's 8-15 (IRQ 8, 13 must be 0) - */ - -static int __initdata acpi_pic_sci_trigger; /* 0: level, 1: edge */ - -void __init -acpi_pic_sci_set_trigger(unsigned int irq) -{ - unsigned char mask = 1 << (irq & 7); - unsigned int port = 0x4d0 + (irq >> 3); - unsigned char val = inb(port); - - - printk(PREFIX "IRQ%d SCI:", irq); - if (!(val & mask)) { - printk(" Edge"); - - if (!acpi_pic_sci_trigger) { - printk(" set to Level"); - outb(val | mask, port); - } - } else { - printk(" Level"); - - if (acpi_pic_sci_trigger) { - printk(" set to Edge"); - outb(val | mask, port); - } - } - printk(" Trigger.\n"); -} - -int __init -acpi_pic_sci_setup(char *str) -{ - while (str && *str) { - if (strncmp(str, "level", 5) == 0) - acpi_pic_sci_trigger = 0; /* force level trigger */ - if (strncmp(str, "edge", 4) == 0) - acpi_pic_sci_trigger = 1; /* force edge trigger */ - str = strchr(str, ','); - if (str) - str += strspn(str, ", \t"); - } - return 1; -} - -__setup("acpi_pic_sci=", acpi_pic_sci_setup); - -#endif /* CONFIG_ACPI_BUS */ - -static unsigned long __init -acpi_scan_rsdp ( - unsigned long start, - unsigned long length) -{ - unsigned long offset = 0; - unsigned long sig_len = sizeof("RSD PTR ") - 1; - - /* - * Scan all 16-byte boundaries of the physical memory region for the - * RSDP signature. - */ - for (offset = 0; offset < length; offset += 16) { - if (strncmp((char *) (start + offset), "RSD PTR ", sig_len)) - continue; - return (start + offset); - } - - return 0; -} - - -unsigned long __init -acpi_find_rsdp (void) -{ - unsigned long rsdp_phys = 0; - - /* - * Scan memory looking for the RSDP signature. First search EBDA (low - * memory) paragraphs and then search upper memory (E0000-FFFFF). - */ - rsdp_phys = acpi_scan_rsdp (0, 0x400); - if (!rsdp_phys) - rsdp_phys = acpi_scan_rsdp (0xE0000, 0xFFFFF); - - return rsdp_phys; -} - -/* - * acpi_boot_init() - * called from setup_arch(), always. - * 1. maps ACPI tables for later use - * 2. enumerates lapics - * 3. enumerates io-apics - * - * side effects: - * acpi_lapic = 1 if LAPIC found - * acpi_ioapic = 1 if IOAPIC found - * if (acpi_lapic && acpi_ioapic) smp_found_config = 1; - * if acpi_blacklisted() acpi_disabled = 1; - * acpi_irq_model=... - * ... - * - * return value: (currently ignored) - * 0: success - * !0: failure - */ - -int __init -acpi_boot_init (void) -{ - int result = 0; - - if (acpi_disabled && !acpi_ht) - return 1; - - /* - * The default interrupt routing model is PIC (8259). This gets - * overriden if IOAPICs are enumerated (below). - */ - acpi_irq_model = ACPI_IRQ_MODEL_PIC; - - /* - * Initialize the ACPI boot-time table parser. - */ - result = acpi_table_init(); - if (result) { - acpi_disabled = 1; - return result; - } - - result = acpi_blacklisted(); - if (result) { - printk(KERN_WARNING PREFIX "BIOS listed in blacklist, disabling ACPI support\n"); - acpi_disabled = 1; - return result; - } - - if (disable_apic) { - printk(KERN_INFO PREFIX "Skipping MADT probe because local APIC is disabled\n"); - return 0; - } - -#ifdef CONFIG_X86_LOCAL_APIC - - /* - * MADT - * ---- - * Parse the Multiple APIC Description Table (MADT), if exists. - * Note that this table provides platform SMP configuration - * information -- the successor to MPS tables. - */ - - result = acpi_table_parse(ACPI_APIC, acpi_parse_madt); - if (!result) { - printk(KERN_WARNING PREFIX "MADT not present\n"); - return 0; - } - else if (result < 0) { - printk(KERN_ERR PREFIX "Error parsing MADT\n"); - return result; - } - else if (result > 1) - printk(KERN_WARNING PREFIX "Multiple MADT tables exist\n"); - - /* - * Local APIC - * ---------- - * Note that the LAPIC address is obtained from the MADT (32-bit value) - * and (optionally) overriden by a LAPIC_ADDR_OVR entry (64-bit value). - */ - - result = acpi_table_parse_madt(ACPI_MADT_LAPIC_ADDR_OVR, acpi_parse_lapic_addr_ovr, 0); - if (result < 0) { - printk(KERN_ERR PREFIX "Error parsing LAPIC address override entry\n"); - return result; - } - - mp_register_lapic_address(acpi_lapic_addr); - - result = acpi_table_parse_madt(ACPI_MADT_LAPIC, acpi_parse_lapic, - MAX_APICS); - if (!result) { - printk(KERN_ERR PREFIX "No LAPIC entries present\n"); - /* TBD: Cleanup to allow fallback to MPS */ - return -ENODEV; - } - else if (result < 0) { - printk(KERN_ERR PREFIX "Error parsing LAPIC entry\n"); - /* TBD: Cleanup to allow fallback to MPS */ - return result; - } - - result = acpi_table_parse_madt(ACPI_MADT_LAPIC_NMI, acpi_parse_lapic_nmi, 0); - if (result < 0) { - printk(KERN_ERR PREFIX "Error parsing LAPIC NMI entry\n"); - /* TBD: Cleanup to allow fallback to MPS */ - return result; - } - - acpi_lapic = 1; - -#endif /*CONFIG_X86_LOCAL_APIC*/ - -#ifdef CONFIG_X86_IO_APIC - - /* - * I/O APIC - * -------- - */ - - /* - * ACPI interpreter is required to complete interrupt setup, - * so if it is off, don't enumerate the io-apics with ACPI. - * If MPS is present, it will handle them, - * otherwise the system will stay in PIC mode - */ - if (acpi_disabled || acpi_noirq) { - return 1; - } - - /* - * if "noapic" boot option, don't look for IO-APICs - */ - if (skip_ioapic_setup) { - printk(KERN_INFO PREFIX "Skipping IOAPIC probe " - "due to 'noapic' option.\n"); - return 1; - } - - result = acpi_table_parse_madt(ACPI_MADT_IOAPIC, acpi_parse_ioapic, MAX_IO_APICS); - if (!result) { - printk(KERN_ERR PREFIX "No IOAPIC entries present\n"); - return -ENODEV; - } - else if (result < 0) { - printk(KERN_ERR PREFIX "Error parsing IOAPIC entry\n"); - return result; - } - - /* Build a default routing table for legacy (ISA) interrupts. */ - mp_config_acpi_legacy_irqs(); - - result = acpi_table_parse_madt(ACPI_MADT_INT_SRC_OVR, acpi_parse_int_src_ovr, NR_IRQ_VECTORS); - if (result < 0) { - printk(KERN_ERR PREFIX "Error parsing interrupt source overrides entry\n"); - /* TBD: Cleanup to allow fallback to MPS */ - return result; - } - - result = acpi_table_parse_madt(ACPI_MADT_NMI_SRC, acpi_parse_nmi_src, - NR_IRQ_VECTORS); - if (result < 0) { - printk(KERN_ERR PREFIX "Error parsing NMI SRC entry\n"); - /* TBD: Cleanup to allow fallback to MPS */ - return result; - } - - acpi_irq_model = ACPI_IRQ_MODEL_IOAPIC; - - acpi_irq_balance_set(NULL); - - acpi_ioapic = 1; - -#endif /*CONFIG_X86_IO_APIC*/ - -#ifdef CONFIG_X86_LOCAL_APIC - if (acpi_lapic && acpi_ioapic) - smp_found_config = 1; -#endif - -#ifdef CONFIG_HPET_TIMER - result = acpi_table_parse(ACPI_HPET, acpi_parse_hpet); - if (result < 0) - printk("ACPI: no HPET table found (%d).\n", result); -#endif - - return 0; -} - -#endif /*CONFIG_ACPI_BOOT*/ - diff -Nru a/drivers/acpi/processor.c b/drivers/acpi/processor.c --- a/drivers/acpi/processor.c Mon Mar 22 19:51:18 2004 +++ b/drivers/acpi/processor.c Mon Mar 22 19:51:18 2004 @@ -67,8 +67,6 @@ #define C3_OVERHEAD 4 /* 1us (3.579 ticks per us) */ -const u32 POWER_OF_2[] = {1,2,4,8,16,32,64}; - #define ACPI_PROCESSOR_LIMIT_USER 0 #define ACPI_PROCESSOR_LIMIT_THERMAL 1 @@ -1489,7 +1487,7 @@ return_VALUE(0); } - pr->throttling.state_count = POWER_OF_2[acpi_fadt.duty_width]; + pr->throttling.state_count = 1 << acpi_fadt.duty_width; /* * Compute state values. Note that throttling displays a linear power/