diff options
Diffstat (limited to 'arch/i386')
25 files changed, 184 insertions, 124 deletions
diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig index 0d67a0a1151e..0dfee812811a 100644 --- a/arch/i386/Kconfig +++ b/arch/i386/Kconfig @@ -777,6 +777,47 @@ config CRASH_DUMP PHYSICAL_START. For more details see Documentation/kdump/kdump.txt +config PHYSICAL_START + hex "Physical address where the kernel is loaded" if (EMBEDDED || CRASH_DUMP) + default "0x100000" + help + This gives the physical address where the kernel is loaded. + + If kernel is a not relocatable (CONFIG_RELOCATABLE=n) then + bzImage will decompress itself to above physical address and + run from there. Otherwise, bzImage will run from the address where + it has been loaded by the boot loader and will ignore above physical + address. + + In normal kdump cases one does not have to set/change this option + as now bzImage can be compiled as a completely relocatable image + (CONFIG_RELOCATABLE=y) and be used to load and run from a different + address. This option is mainly useful for the folks who don't want + to use a bzImage for capturing the crash dump and want to use a + vmlinux instead. vmlinux is not relocatable hence a kernel needs + to be specifically compiled to run from a specific memory area + (normally a reserved region) and this option comes handy. + + So if you are using bzImage for capturing the crash dump, leave + the value here unchanged to 0x100000 and set CONFIG_RELOCATABLE=y. + Otherwise if you plan to use vmlinux for capturing the crash dump + change this value to start of the reserved region (Typically 16MB + 0x1000000). In other words, it can be set based on the "X" value as + specified in the "crashkernel=YM@XM" command line boot parameter + passed to the panic-ed kernel. Typically this parameter is set as + crashkernel=64M@16M. Please take a look at + Documentation/kdump/kdump.txt for more details about crash dumps. + + Usage of bzImage for capturing the crash dump is recommended as + one does not have to build two kernels. Same kernel can be used + as production kernel and capture kernel. Above option should have + gone away after relocatable bzImage support is introduced. But it + is present because there are users out there who continue to use + vmlinux for dump capture. This option should go away down the + line. + + Don't change this unless you know what you are doing. + config RELOCATABLE bool "Build a relocatable kernel(EXPERIMENTAL)" depends on EXPERIMENTAL diff --git a/arch/i386/boot/compressed/.gitignore b/arch/i386/boot/compressed/.gitignore new file mode 100644 index 000000000000..be0ed065249b --- /dev/null +++ b/arch/i386/boot/compressed/.gitignore @@ -0,0 +1 @@ +relocs diff --git a/arch/i386/boot/compressed/head.S b/arch/i386/boot/compressed/head.S index f395a4bb38bb..3517a32aaf41 100644 --- a/arch/i386/boot/compressed/head.S +++ b/arch/i386/boot/compressed/head.S @@ -28,7 +28,7 @@ #include <asm/page.h> #include <asm/boot.h> -.section ".text.head" +.section ".text.head","ax",@progbits .globl startup_32 startup_32: diff --git a/arch/i386/defconfig b/arch/i386/defconfig index e075ff05c46d..5d80edfc61b7 100644 --- a/arch/i386/defconfig +++ b/arch/i386/defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.19-git14 -# Sat Dec 9 21:23:14 2006 +# Linux kernel version: 2.6.20-rc3 +# Fri Jan 5 11:54:46 2007 # CONFIG_X86_32=y CONFIG_GENERIC_TIME=y @@ -1167,7 +1167,7 @@ CONFIG_USB_STORAGE=y # USB Input Devices # CONFIG_USB_HID=y -# CONFIG_USB_HID_POWERBOOK is not set +# CONFIG_USB_HIDINPUT_POWERBOOK is not set # CONFIG_HID_FF is not set # CONFIG_USB_HIDDEV is not set # CONFIG_USB_AIPTEK is not set @@ -1287,6 +1287,11 @@ CONFIG_USB_MON=y # # +# Virtualization +# +# CONFIG_KVM is not set + +# # File systems # CONFIG_EXT2_FS=y @@ -1471,6 +1476,8 @@ CONFIG_TRACE_IRQFLAGS_SUPPORT=y # CONFIG_ENABLE_MUST_CHECK is not set CONFIG_MAGIC_SYSRQ=y CONFIG_UNUSED_SYMBOLS=y +# CONFIG_DEBUG_FS is not set +# CONFIG_HEADERS_CHECK is not set CONFIG_DEBUG_KERNEL=y CONFIG_LOG_BUF_SHIFT=18 CONFIG_DETECT_SOFTLOCKUP=y @@ -1489,12 +1496,10 @@ CONFIG_DETECT_SOFTLOCKUP=y # CONFIG_DEBUG_HIGHMEM is not set CONFIG_DEBUG_BUGVERBOSE=y # CONFIG_DEBUG_INFO is not set -# CONFIG_DEBUG_FS is not set # CONFIG_DEBUG_VM is not set # CONFIG_DEBUG_LIST is not set # CONFIG_FRAME_POINTER is not set # CONFIG_FORCED_INLINING is not set -# CONFIG_HEADERS_CHECK is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_LKDTM is not set CONFIG_EARLY_PRINTK=y @@ -1527,6 +1532,7 @@ CONFIG_CRC32=y # CONFIG_LIBCRC32C is not set CONFIG_ZLIB_INFLATE=y CONFIG_PLIST=y +CONFIG_IOMAP_COPY=y CONFIG_GENERIC_HARDIRQS=y CONFIG_GENERIC_IRQ_PROBE=y CONFIG_GENERIC_PENDING_IRQ=y diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c index 094300b3a81f..cbcb2c27f48b 100644 --- a/arch/i386/kernel/acpi/boot.c +++ b/arch/i386/kernel/acpi/boot.c @@ -333,7 +333,7 @@ acpi_parse_ioapic(acpi_table_entry_header * header, const unsigned long end) /* * Parse Interrupt Source Override for the ACPI SCI */ -static void acpi_sci_ioapic_setup(u32 gsi, u16 polarity, u16 trigger) +static void __init acpi_sci_ioapic_setup(u32 gsi, u16 polarity, u16 trigger) { if (trigger == 0) /* compatible SCI trigger is level */ trigger = 3; diff --git a/arch/i386/kernel/acpi/cstate.c b/arch/i386/kernel/acpi/cstate.c index 12e937c1ce4b..2d39f55d29a8 100644 --- a/arch/i386/kernel/acpi/cstate.c +++ b/arch/i386/kernel/acpi/cstate.c @@ -47,13 +47,13 @@ EXPORT_SYMBOL(acpi_processor_power_init_bm_check); /* The code below handles cstate entry with monitor-mwait pair on Intel*/ -struct cstate_entry_s { +struct cstate_entry { struct { unsigned int eax; unsigned int ecx; } states[ACPI_PROCESSOR_MAX_POWER]; }; -static struct cstate_entry_s *cpu_cstate_entry; /* per CPU ptr */ +static struct cstate_entry *cpu_cstate_entry; /* per CPU ptr */ static short mwait_supported[ACPI_PROCESSOR_MAX_POWER]; @@ -71,7 +71,7 @@ static short mwait_supported[ACPI_PROCESSOR_MAX_POWER]; int acpi_processor_ffh_cstate_probe(unsigned int cpu, struct acpi_processor_cx *cx, struct acpi_power_register *reg) { - struct cstate_entry_s *percpu_entry; + struct cstate_entry *percpu_entry; struct cpuinfo_x86 *c = cpu_data + cpu; cpumask_t saved_mask; @@ -136,7 +136,7 @@ EXPORT_SYMBOL_GPL(acpi_processor_ffh_cstate_probe); void acpi_processor_ffh_cstate_enter(struct acpi_processor_cx *cx) { unsigned int cpu = smp_processor_id(); - struct cstate_entry_s *percpu_entry; + struct cstate_entry *percpu_entry; percpu_entry = per_cpu_ptr(cpu_cstate_entry, cpu); mwait_idle_with_hints(percpu_entry->states[cx->index].eax, @@ -150,7 +150,7 @@ static int __init ffh_cstate_init(void) if (c->x86_vendor != X86_VENDOR_INTEL) return -1; - cpu_cstate_entry = alloc_percpu(struct cstate_entry_s); + cpu_cstate_entry = alloc_percpu(struct cstate_entry); return 0; } diff --git a/arch/i386/kernel/cpu/common.c b/arch/i386/kernel/cpu/common.c index 1b34c56f8123..8a8bbdaaf38a 100644 --- a/arch/i386/kernel/cpu/common.c +++ b/arch/i386/kernel/cpu/common.c @@ -54,7 +54,7 @@ static struct cpu_dev __cpuinitdata default_cpu = { .c_init = default_init, .c_vendor = "Unknown", }; -static struct cpu_dev * this_cpu = &default_cpu; +static struct cpu_dev * this_cpu __cpuinitdata = &default_cpu; static int __init cachesize_setup(char *str) { @@ -710,11 +710,8 @@ __cpuinit int init_gdt(int cpu, struct task_struct *idle) return 1; } -/* Common CPU init for both boot and secondary CPUs */ -static void __cpuinit _cpu_init(int cpu, struct task_struct *curr) +void __cpuinit cpu_set_gdt(int cpu) { - struct tss_struct * t = &per_cpu(init_tss, cpu); - struct thread_struct *thread = &curr->thread; struct Xgt_desc_struct *cpu_gdt_descr = &per_cpu(cpu_gdt_descr, cpu); /* Reinit these anyway, even if they've already been done (on @@ -722,6 +719,13 @@ static void __cpuinit _cpu_init(int cpu, struct task_struct *curr) the real ones). */ load_gdt(cpu_gdt_descr); set_kernel_gs(); +} + +/* Common CPU init for both boot and secondary CPUs */ +static void __cpuinit _cpu_init(int cpu, struct task_struct *curr) +{ + struct tss_struct * t = &per_cpu(init_tss, cpu); + struct thread_struct *thread = &curr->thread; if (cpu_test_and_set(cpu, cpu_initialized)) { printk(KERN_WARNING "CPU#%d already initialized!\n", cpu); @@ -807,6 +811,7 @@ void __cpuinit cpu_init(void) local_irq_enable(); } + cpu_set_gdt(cpu); _cpu_init(cpu, curr); } diff --git a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c index b735458c6e3a..10baa3501ed3 100644 --- a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c +++ b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c @@ -373,8 +373,8 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy, cpumask_t online_policy_cpus; struct drv_cmd cmd; unsigned int msr; - unsigned int next_state = 0; - unsigned int next_perf_state = 0; + unsigned int next_state = 0; /* Index into freq_table */ + unsigned int next_perf_state = 0; /* Index into perf table */ unsigned int i; int result = 0; @@ -420,6 +420,7 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy, msr = (u32) perf->states[next_perf_state]. control & INTEL_MSR_RANGE; + cmd.val = get_cur_val(online_policy_cpus); cmd.val = (cmd.val & ~INTEL_MSR_RANGE) | msr; break; case SYSTEM_IO_CAPABLE: @@ -439,8 +440,8 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy, else cpu_set(policy->cpu, cmd.mask); - freqs.old = data->freq_table[perf->state].frequency; - freqs.new = data->freq_table[next_perf_state].frequency; + freqs.old = perf->states[perf->state].core_frequency * 1000; + freqs.new = data->freq_table[next_state].frequency; for_each_cpu_mask(i, cmd.mask) { freqs.cpu = i; cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); @@ -677,6 +678,7 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy) valid_states++; } data->freq_table[valid_states].frequency = CPUFREQ_TABLE_END; + perf->state = 0; result = cpufreq_frequency_table_cpuinfo(policy, data->freq_table); if (result) diff --git a/arch/i386/kernel/cpu/cpufreq/longhaul.c b/arch/i386/kernel/cpu/cpufreq/longhaul.c index 6d9c97a690fd..e940e00b96c9 100644 --- a/arch/i386/kernel/cpu/cpufreq/longhaul.c +++ b/arch/i386/kernel/cpu/cpufreq/longhaul.c @@ -52,6 +52,10 @@ #define CPU_EZRA_T 4 #define CPU_NEHEMIAH 5 +/* Flags */ +#define USE_ACPI_C3 (1 << 1) +#define USE_NORTHBRIDGE (1 << 2) + static int cpu_model; static unsigned int numscales=16; static unsigned int fsb; @@ -68,7 +72,7 @@ static unsigned int minmult, maxmult; static int can_scale_voltage; static struct acpi_processor *pr = NULL; static struct acpi_processor_cx *cx = NULL; -static int port22_en; +static u8 longhaul_flags; /* Module parameters */ static int scale_voltage; @@ -80,7 +84,6 @@ static int ignore_latency; /* Clock ratios multiplied by 10 */ static int clock_ratio[32]; static int eblcr_table[32]; -static unsigned int highest_speed, lowest_speed; /* kHz */ static int longhaul_version; static struct cpufreq_frequency_table *longhaul_table; @@ -178,7 +181,7 @@ static void do_powersaver(int cx_address, unsigned int clock_ratio_index) safe_halt(); /* Change frequency on next halt or sleep */ wrmsrl(MSR_VIA_LONGHAUL, longhaul.val); - if (port22_en) { + if (!cx_address) { ACPI_FLUSH_CPU_CACHE(); /* Invoke C1 */ halt(); @@ -189,7 +192,6 @@ static void do_powersaver(int cx_address, unsigned int clock_ratio_index) /* Dummy op - must do something useless after P_LVL3 read */ t = inl(acpi_fadt.xpm_tmr_blk.address); } - /* Disable bus ratio bit */ local_irq_disable(); longhaul.bits.RevisionKey = longhaul.bits.RevisionID; @@ -243,15 +245,14 @@ static void longhaul_setstate(unsigned int clock_ratio_index) outb(0xFF,0xA1); /* Overkill */ outb(0xFE,0x21); /* TMR0 only */ - if (pr->flags.bm_control) { + if (longhaul_flags & USE_NORTHBRIDGE) { + /* Disable AGP and PCI arbiters */ + outb(3, 0x22); + } else if ((pr != NULL) && pr->flags.bm_control) { /* Disable bus master arbitration */ acpi_set_register(ACPI_BITREG_ARB_DISABLE, 1, ACPI_MTX_DO_NOT_LOCK); - } else if (port22_en) { - /* Disable AGP and PCI arbiters */ - outb(3, 0x22); } - switch (longhaul_version) { /* @@ -278,22 +279,25 @@ static void longhaul_setstate(unsigned int clock_ratio_index) * to work in practice. */ case TYPE_POWERSAVER: - /* Don't allow wakeup */ - acpi_set_register(ACPI_BITREG_BUS_MASTER_RLD, 0, - ACPI_MTX_DO_NOT_LOCK); - do_powersaver(cx->address, clock_ratio_index); + if (longhaul_flags & USE_ACPI_C3) { + /* Don't allow wakeup */ + acpi_set_register(ACPI_BITREG_BUS_MASTER_RLD, 0, + ACPI_MTX_DO_NOT_LOCK); + do_powersaver(cx->address, clock_ratio_index); + } else { + do_powersaver(0, clock_ratio_index); + } break; } - if (pr->flags.bm_control) { + if (longhaul_flags & USE_NORTHBRIDGE) { + /* Enable arbiters */ + outb(0, 0x22); + } else if ((pr != NULL) && pr->flags.bm_control) { /* Enable bus master arbitration */ acpi_set_register(ACPI_BITREG_ARB_DISABLE, 0, ACPI_MTX_DO_NOT_LOCK); - } else if (port22_en) { - /* Enable arbiters */ - outb(0, 0x22); } - outb(pic2_mask,0xA1); /* restore mask */ outb(pic1_mask,0x21); @@ -314,12 +318,12 @@ static void longhaul_setstate(unsigned int clock_ratio_index) #define ROUNDING 0xf -static int _guess(int guess) +static int _guess(int guess, int mult) { int target; - target = ((maxmult/10)*guess); - if (maxmult%10 != 0) + target = ((mult/10)*guess); + if (mult%10 != 0) target += (guess/2); target += ROUNDING/2; target &= ~ROUNDING; @@ -327,17 +331,17 @@ static int _guess(int guess) } -static int guess_fsb(void) +static int guess_fsb(int mult) { int speed = (cpu_khz/1000); int i; - int speeds[3] = { 66, 100, 133 }; + int speeds[] = { 66, 100, 133, 200 }; speed += ROUNDING/2; speed &= ~ROUNDING; - for (i=0; i<3; i++) { - if (_guess(speeds[i]) == speed) + for (i=0; i<4; i++) { + if (_guess(speeds[i], mult) == speed) return speeds[i]; } return 0; @@ -354,9 +358,7 @@ static int __init longhaul_get_ranges(void) 130, 150, 160, 140, -1, 155, -1, 145 }; unsigned int j, k = 0; union msr_longhaul longhaul; - unsigned long lo, hi; - unsigned int eblcr_fsb_table_v1[] = { 66, 133, 100, -1 }; - unsigned int eblcr_fsb_table_v2[] = { 133, 100, -1, 66 }; + int mult = 0; switch (longhaul_version) { case TYPE_LONGHAUL_V1: @@ -364,30 +366,18 @@ static int __init longhaul_get_ranges(void) /* Ugh, Longhaul v1 didn't have the min/max MSRs. Assume min=3.0x & max = whatever we booted at. */ minmult = 30; - maxmult = longhaul_get_cpu_mult(); - rdmsr (MSR_IA32_EBL_CR_POWERON, lo, hi); - invalue = (lo & (1<<18|1<<19)) >>18; - if (cpu_model==CPU_SAMUEL || cpu_model==CPU_SAMUEL2) - fsb = eblcr_fsb_table_v1[invalue]; - else - fsb = guess_fsb(); + maxmult = mult = longhaul_get_cpu_mult(); break; case TYPE_POWERSAVER: /* Ezra-T */ if (cpu_model==CPU_EZRA_T) { + minmult = 30; rdmsrl (MSR_VIA_LONGHAUL, longhaul.val); invalue = longhaul.bits.MaxMHzBR; if (longhaul.bits.MaxMHzBR4) invalue += 16; - maxmult=ezra_t_multipliers[invalue]; - - invalue = longhaul.bits.MinMHzBR; - if (longhaul.bits.MinMHzBR4 == 1) - minmult = 30; - else - minmult = ezra_t_multipliers[invalue]; - fsb = eblcr_fsb_table_v2[longhaul.bits.MaxMHzFSB]; + maxmult = mult = ezra_t_multipliers[invalue]; break; } @@ -407,21 +397,16 @@ static int __init longhaul_get_ranges(void) * But it works, so we don't grumble. */ minmult=40; - maxmult=longhaul_get_cpu_mult(); - - /* Starting with the 1.2GHz parts, theres a 200MHz bus. */ - if ((cpu_khz/maxmult) > 13400) - fsb = 200; - else - fsb = eblcr_fsb_table_v2[longhaul.bits.MaxMHzFSB]; + maxmult = mult = longhaul_get_cpu_mult(); break; } } + fsb = guess_fsb(mult); dprintk ("MinMult:%d.%dx MaxMult:%d.%dx\n", minmult/10, minmult%10, maxmult/10, maxmult%10); - if (fsb == -1) { + if (fsb == 0) { printk (KERN_INFO PFX "Invalid (reserved) FSB!\n"); return -EINVAL; } @@ -691,27 +676,32 @@ static int __init longhaul_cpu_init(struct cpufreq_policy *policy) /* Find ACPI data for processor */ acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, &longhaul_walk_callback, NULL, (void *)&pr); - if (pr == NULL) - goto err_acpi; - if (longhaul_version == TYPE_POWERSAVER) { - /* Check ACPI support for C3 state */ + /* Check ACPI support for C3 state */ + if ((pr != NULL) && (longhaul_version == TYPE_POWERSAVER)) { cx = &pr->power.states[ACPI_STATE_C3]; if (cx->address > 0 && (cx->latency <= 1000 || ignore_latency != 0) ) { + longhaul_flags |= USE_ACPI_C3; goto print_support_type; } } + /* Check if northbridge is friendly */ + if (enable_arbiter_disable()) { + longhaul_flags |= USE_NORTHBRIDGE; + goto print_support_type; + } + + /* No ACPI C3 or we can't use it */ /* Check ACPI support for bus master arbiter disable */ - if (!pr->flags.bm_control) { - if (enable_arbiter_disable()) { - port22_en = 1; - } else { - goto err_acpi; - } + if ((pr == NULL) || !(pr->flags.bm_control)) { + printk(KERN_ERR PFX + "No ACPI support. Unsupported northbridge.\n"); + return -ENODEV; } + print_support_type: - if (!port22_en) { + if (!(longhaul_flags & USE_NORTHBRIDGE)) { printk (KERN_INFO PFX "Using ACPI support.\n"); } else { printk (KERN_INFO PFX "Using northbridge support.\n"); @@ -736,10 +726,6 @@ print_support_type: cpufreq_frequency_table_get_attr(longhaul_table, policy->cpu); return 0; - -err_acpi: - printk(KERN_ERR PFX "No ACPI support. Unsupported northbridge. Aborting.\n"); - return -ENODEV; } static int __devexit longhaul_cpu_exit(struct cpufreq_policy *policy) @@ -774,8 +760,8 @@ static int __init longhaul_init(void) #ifdef CONFIG_SMP if (num_online_cpus() > 1) { - return -ENODEV; printk(KERN_ERR PFX "More than 1 CPU detected, longhaul disabled.\n"); + return -ENODEV; } #endif #ifdef CONFIG_X86_IO_APIC diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c b/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c index 5113e9231634..f43b987f952b 100644 --- a/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c +++ b/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c @@ -533,9 +533,9 @@ static int centrino_cpu_init_acpi(struct cpufreq_policy *policy) /* notify BIOS that we exist */ acpi_processor_notify_smm(THIS_MODULE); - printk("speedstep-centrino with X86_SPEEDSTEP_CENTRINO_ACPI" - "config is deprecated.\n " - "Use X86_ACPI_CPUFREQ (acpi-cpufreq instead.\n" ); + printk("speedstep-centrino with X86_SPEEDSTEP_CENTRINO_ACPI " + "config is deprecated.\n " + "Use X86_ACPI_CPUFREQ (acpi-cpufreq) instead.\n" ); return 0; diff --git a/arch/i386/kernel/cpu/cyrix.c b/arch/i386/kernel/cpu/cyrix.c index c0c3b59de32c..abcff92f994c 100644 --- a/arch/i386/kernel/cpu/cyrix.c +++ b/arch/i386/kernel/cpu/cyrix.c @@ -173,7 +173,7 @@ static void __cpuinit geode_configure(void) ccr4 = getCx86(CX86_CCR4); ccr4 |= 0x38; /* FPU fast, DTE cache, Mem bypass */ - setCx86(CX86_CCR3, ccr3); + setCx86(CX86_CCR4, ccr4); set_cx86_memwb(); set_cx86_reorder(); diff --git a/arch/i386/kernel/mpparse.c b/arch/i386/kernel/mpparse.c index 2ce67228dff8..49bff3596bff 100644 --- a/arch/i386/kernel/mpparse.c +++ b/arch/i386/kernel/mpparse.c @@ -36,7 +36,7 @@ /* Have we found an MP table */ int smp_found_config; -unsigned int __initdata maxcpus = NR_CPUS; +unsigned int __cpuinitdata maxcpus = NR_CPUS; /* * Various Linux-internal data structures created from the @@ -102,9 +102,9 @@ static int __init mpf_checksum(unsigned char *mp, int len) */ static int mpc_record; -static struct mpc_config_translation *translation_table[MAX_MPC_ENTRY] __initdata; +static struct mpc_config_translation *translation_table[MAX_MPC_ENTRY] __cpuinitdata; -static void __devinit MP_processor_info (struct mpc_config_processor *m) +static void __cpuinit MP_processor_info (struct mpc_config_processor *m) { int ver, apicid; physid_mask_t phys_cpu; @@ -822,7 +822,7 @@ void __init mp_register_lapic_address(u64 address) Dprintk("Boot CPU = %d\n", boot_cpu_physical_apicid); } -void __devinit mp_register_lapic (u8 id, u8 enabled) +void __cpuinit mp_register_lapic (u8 id, u8 enabled) { struct mpc_config_processor processor; int boot_cpu = 0; diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c index a5e34d655965..1a6f8bb8881c 100644 --- a/arch/i386/kernel/nmi.c +++ b/arch/i386/kernel/nmi.c @@ -310,13 +310,7 @@ static int __init setup_nmi_watchdog(char *str) if ((nmi >= NMI_INVALID) || (nmi < NMI_NONE)) return 0; - /* - * If any other x86 CPU has a local APIC, then - * please test the NMI stuff there and send me the - * missing bits. Right now Intel P6/P4 and AMD K7 only. - */ - if ((nmi == NMI_LOCAL_APIC) && (nmi_known_cpu() == 0)) - return 0; /* no lapic support */ + nmi_watchdog = nmi; return 1; } diff --git a/arch/i386/kernel/paravirt.c b/arch/i386/kernel/paravirt.c index 3dceab5828f1..e55fd05da0f5 100644 --- a/arch/i386/kernel/paravirt.c +++ b/arch/i386/kernel/paravirt.c @@ -566,4 +566,11 @@ struct paravirt_ops paravirt_ops = { .irq_enable_sysexit = native_irq_enable_sysexit, .iret = native_iret, }; -EXPORT_SYMBOL(paravirt_ops); + +/* + * NOTE: CONFIG_PARAVIRT is experimental and the paravirt_ops + * semantics are subject to change. Hence we only do this + * internal-only export of this, until it gets sorted out and + * all lowlevel CPU ops used by modules are separately exported. + */ +EXPORT_SYMBOL_GPL(paravirt_ops); diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c index 6f6cb7b31d18..4b31ad70c1ac 100644 --- a/arch/i386/kernel/setup.c +++ b/arch/i386/kernel/setup.c @@ -77,7 +77,7 @@ extern struct resource code_resource; extern struct resource data_resource; /* cpu data as detected by the assembly code in head.S */ -struct cpuinfo_x86 new_cpu_data __initdata = { 0, 0, 0, 0, -1, 1, 0, 0, -1 }; +struct cpuinfo_x86 new_cpu_data __cpuinitdata = { 0, 0, 0, 0, -1, 1, 0, 0, -1 }; /* common cpu data for all cpus */ struct cpuinfo_x86 boot_cpu_data __read_mostly = { 0, 0, 0, 0, -1, 1, 0, 0, -1 }; EXPORT_SYMBOL(boot_cpu_data); @@ -495,7 +495,7 @@ static void set_mca_bus(int x) { } #endif /* Overridden in paravirt.c if CONFIG_PARAVIRT */ -char * __attribute__((weak)) memory_setup(void) +char * __init __attribute__((weak)) memory_setup(void) { return machine_specific_memory_setup(); } diff --git a/arch/i386/kernel/smpboot.c b/arch/i386/kernel/smpboot.c index aef39be81361..8c6c8c52b95c 100644 --- a/arch/i386/kernel/smpboot.c +++ b/arch/i386/kernel/smpboot.c @@ -159,7 +159,7 @@ void __init smp_alloc_memory(void) * a given CPU */ -static void __devinit smp_store_cpu_info(int id) +static void __cpuinit smp_store_cpu_info(int id) { struct cpuinfo_x86 *c = cpu_data + id; @@ -227,7 +227,7 @@ static struct { atomic_t count_start; atomic_t count_stop; unsigned long long values[NR_CPUS]; -} tsc __initdata = { +} tsc __cpuinitdata = { .start_flag = ATOMIC_INIT(0), .count_start = ATOMIC_INIT(0), .count_stop = ATOMIC_INIT(0), @@ -332,7 +332,7 @@ static void __init synchronize_tsc_bp(void) printk("passed.\n"); } -static void __init synchronize_tsc_ap(void) +static void __cpuinit synchronize_tsc_ap(void) { int i; @@ -364,7 +364,7 @@ extern void calibrate_delay(void); static atomic_t init_deasserted; -static void __devinit smp_callin(void) +static void __cpuinit smp_callin(void) { int cpuid, phys_id; unsigned long timeout; @@ -538,7 +538,7 @@ set_cpu_sibling_map(int cpu) /* * Activate a secondary processor. */ -static void __devinit start_secondary(void *unused) +static void __cpuinit start_secondary(void *unused) { /* * Don't put *anything* before secondary_cpu_init(), SMP @@ -596,6 +596,12 @@ static void __devinit start_secondary(void *unused) void __devinit initialize_secondary(void) { /* + * switch to the per CPU GDT we already set up + * in do_boot_cpu() + */ + cpu_set_gdt(current_thread_info()->cpu); + + /* * We don't actually need to load the full TSS, * basically just the stack pointer and the eip. */ @@ -931,7 +937,7 @@ static inline struct task_struct * alloc_idle_task(int cpu) #define alloc_idle_task(cpu) fork_idle(cpu) #endif -static int __devinit do_boot_cpu(int apicid, int cpu) +static int __cpuinit do_boot_cpu(int apicid, int cpu) /* * NOTE - on most systems this is a PHYSICAL apic ID, but on multiquad * (ie clustered apic addressing mode), this is a LOGICAL apic ID. @@ -972,9 +978,6 @@ static int __devinit do_boot_cpu(int apicid, int cpu) /* Stack for startup_32 can be just as for start_secondary onwards */ stack_start.esp = (void *) idle->thread.esp; - start_pda = cpu_pda(cpu); - cpu_gdt_descr = per_cpu(cpu_gdt_descr, cpu); - irq_ctx_init(cpu); x86_cpu_to_apicid[cpu] = apicid; @@ -1432,7 +1435,7 @@ void __cpu_die(unsigned int cpu) } #endif /* CONFIG_HOTPLUG_CPU */ -int __devinit __cpu_up(unsigned int cpu) +int __cpuinit __cpu_up(unsigned int cpu) { #ifdef CONFIG_HOTPLUG_CPU int ret=0; diff --git a/arch/i386/kernel/trampoline.S b/arch/i386/kernel/trampoline.S index fcce0e61b0e7..2f1814c5cfd7 100644 --- a/arch/i386/kernel/trampoline.S +++ b/arch/i386/kernel/trampoline.S @@ -38,6 +38,11 @@ .data +/* We can free up trampoline after bootup if cpu hotplug is not supported. */ +#ifndef CONFIG_HOTPLUG_CPU +.section ".init.data","aw",@progbits +#endif + .code16 ENTRY(trampoline_data) diff --git a/arch/i386/kernel/tsc.c b/arch/i386/kernel/tsc.c index 1bbe45dca7a0..2cfc7b09b925 100644 --- a/arch/i386/kernel/tsc.c +++ b/arch/i386/kernel/tsc.c @@ -24,7 +24,7 @@ */ unsigned int tsc_khz; -int tsc_disable __cpuinitdata = 0; +int tsc_disable; #ifdef CONFIG_X86_TSC static int __init tsc_setup(char *str) diff --git a/arch/i386/mach-generic/bigsmp.c b/arch/i386/mach-generic/bigsmp.c index 33d9f93557ba..8a210fa915b5 100644 --- a/arch/i386/mach-generic/bigsmp.c +++ b/arch/i386/mach-generic/bigsmp.c @@ -45,7 +45,7 @@ static struct dmi_system_id __initdata bigsmp_dmi_table[] = { }; -static __init int probe_bigsmp(void) +static int probe_bigsmp(void) { if (def_to_bigsmp) dmi_bigsmp = 1; diff --git a/arch/i386/mach-generic/default.c b/arch/i386/mach-generic/default.c index 96c19821e47d..8685208d8512 100644 --- a/arch/i386/mach-generic/default.c +++ b/arch/i386/mach-generic/default.c @@ -18,7 +18,7 @@ #include <asm/mach-default/mach_mpparse.h> /* should be called last. */ -static __init int probe_default(void) +static int probe_default(void) { return 1; } diff --git a/arch/i386/mach-generic/es7000.c b/arch/i386/mach-generic/es7000.c index aa144d82334d..b8963a5a3b25 100644 --- a/arch/i386/mach-generic/es7000.c +++ b/arch/i386/mach-generic/es7000.c @@ -19,7 +19,7 @@ #include <asm/mach-es7000/mach_mpparse.h> #include <asm/mach-es7000/mach_wakecpu.h> -static __init int probe_es7000(void) +static int probe_es7000(void) { /* probed later in mptable/ACPI hooks */ return 0; diff --git a/arch/i386/mach-generic/summit.c b/arch/i386/mach-generic/summit.c index f7e5d66648dc..74883ccb8f73 100644 --- a/arch/i386/mach-generic/summit.c +++ b/arch/i386/mach-generic/summit.c @@ -18,7 +18,7 @@ #include <asm/mach-summit/mach_ipi.h> #include <asm/mach-summit/mach_mpparse.h> -static __init int probe_summit(void) +static int probe_summit(void) { /* probed later in mptable/ACPI hooks */ return 0; diff --git a/arch/i386/mach-voyager/voyager_smp.c b/arch/i386/mach-voyager/voyager_smp.c index 55428e656a3f..74aeedf277f4 100644 --- a/arch/i386/mach-voyager/voyager_smp.c +++ b/arch/i386/mach-voyager/voyager_smp.c @@ -773,6 +773,12 @@ initialize_secondary(void) #endif /* + * switch to the per CPU GDT we already set up + * in do_boot_cpu() + */ + cpu_set_gdt(current_thread_info()->cpu); + + /* * We don't actually need to load the full TSS, * basically just the stack pointer and the eip. */ diff --git a/arch/i386/mm/init.c b/arch/i386/mm/init.c index 60a7e57af197..c5c5ea700cc7 100644 --- a/arch/i386/mm/init.c +++ b/arch/i386/mm/init.c @@ -283,7 +283,7 @@ void __init add_one_highpage_init(struct page *page, int pfn, int bad_ppro) SetPageReserved(page); } -static int add_one_highpage_hotplug(struct page *page, unsigned long pfn) +static int __meminit add_one_highpage_hotplug(struct page *page, unsigned long pfn) { free_new_highpage(page); totalram_pages++; @@ -300,7 +300,7 @@ static int add_one_highpage_hotplug(struct page *page, unsigned long pfn) * has been added dynamically that would be * onlined here is in HIGHMEM */ -void online_page(struct page *page) +void __meminit online_page(struct page *page) { ClearPageReserved(page); add_one_highpage_hotplug(page, page_to_pfn(page)); diff --git a/arch/i386/pci/mmconfig.c b/arch/i386/pci/mmconfig.c index c6b6d9bbc453..e2616a266e13 100644 --- a/arch/i386/pci/mmconfig.c +++ b/arch/i386/pci/mmconfig.c @@ -26,6 +26,7 @@ /* The base address of the last MMCONFIG device accessed */ static u32 mmcfg_last_accessed_device; +static int mmcfg_last_accessed_cpu; static DECLARE_BITMAP(fallback_slots, MAX_CHECK_BUS*32); @@ -73,8 +74,11 @@ static u32 get_base_addr(unsigned int seg, int bus, unsigned devfn) static void pci_exp_set_dev_base(unsigned int base, int bus, int devfn) { u32 dev_base = base | (bus << 20) | (devfn << 12); - if (dev_base != mmcfg_last_accessed_device) { + int cpu = smp_processor_id(); + if (dev_base != mmcfg_last_accessed_device || + cpu != mmcfg_last_accessed_cpu) { mmcfg_last_accessed_device = dev_base; + mmcfg_last_accessed_cpu = cpu; set_fixmap_nocache(FIX_PCIE_MCFG, dev_base); } } |
