diff options
Diffstat (limited to 'arch')
30 files changed, 356 insertions, 152 deletions
diff --git a/arch/arm/mach-iop13xx/io.c b/arch/arm/mach-iop13xx/io.c index fbf9f88e46e..e79a1b62600 100644 --- a/arch/arm/mach-iop13xx/io.c +++ b/arch/arm/mach-iop13xx/io.c @@ -21,6 +21,25 @@ #include <asm/hardware.h> #include <asm/io.h> +void * __iomem __iop13xx_io(unsigned long io_addr) +{ + void __iomem * io_virt; + + switch (io_addr) { + case IOP13XX_PCIE_LOWER_IO_PA ... IOP13XX_PCIE_UPPER_IO_PA: + io_virt = (void *) IOP13XX_PCIE_IO_PHYS_TO_VIRT(io_addr); + break; + case IOP13XX_PCIX_LOWER_IO_PA ... IOP13XX_PCIX_UPPER_IO_PA: + io_virt = (void *) IOP13XX_PCIX_IO_PHYS_TO_VIRT(io_addr); + break; + default: + BUG(); + } + + return io_virt; +} +EXPORT_SYMBOL(__iop13xx_io); + void * __iomem __iop13xx_ioremap(unsigned long cookie, size_t size, unsigned long flags) { diff --git a/arch/arm/mach-omap2/board-apollon.c b/arch/arm/mach-omap2/board-apollon.c index 03d6905ba49..878ff9181d0 100644 --- a/arch/arm/mach-omap2/board-apollon.c +++ b/arch/arm/mach-omap2/board-apollon.c @@ -22,6 +22,7 @@ #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> #include <linux/mtd/onenand.h> +#include <linux/irq.h> #include <linux/interrupt.h> #include <linux/delay.h> diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c index f4f04d87df3..d8f57824423 100644 --- a/arch/arm/mach-omap2/gpmc.c +++ b/arch/arm/mach-omap2/gpmc.c @@ -17,6 +17,7 @@ #include <linux/spinlock.h> #include <asm/io.h> +#include <asm/mach-types.h> #include <asm/arch/gpmc.h> #undef DEBUG @@ -338,19 +339,13 @@ void __init gpmc_mem_init(void) int cs; unsigned long boot_rom_space = 0; - if (cpu_is_omap242x()) { - u32 l; - l = omap_readl(OMAP242X_CONTROL_STATUS); - /* In case of internal boot the 1st MB is redirected to the - * boot ROM memory space. - */ - if (l & (1 << 3)) - boot_rom_space = BOOT_ROM_SPACE; - } else - /* We assume internal boot if the mode can't be - * determined. - */ - boot_rom_space = BOOT_ROM_SPACE; + /* never allocate the first page, to facilitate bug detection; + * even if we didn't boot from ROM. + */ + boot_rom_space = BOOT_ROM_SPACE; + /* In apollon the CS0 is mapped as 0x0000 0000 */ + if (machine_is_omap_apollon()) + boot_rom_space = 0; gpmc_mem_root.start = GPMC_MEM_START + boot_rom_space; gpmc_mem_root.end = GPMC_MEM_END; diff --git a/arch/arm/mach-pxa/generic.c b/arch/arm/mach-pxa/generic.c index 6ae605857ca..9de1278d234 100644 --- a/arch/arm/mach-pxa/generic.c +++ b/arch/arm/mach-pxa/generic.c @@ -76,7 +76,9 @@ unsigned long long sched_clock(void) /* * 96-bit math to perform tick * NSEC_PER_SEC / CLOCK_TICK_RATE for * any value of CLOCK_TICK_RATE. Max value is in the 80 thousand - * years range which is nice, but with higher computation cost. + * years range and truncation to unsigned long long limits it to + * sched_clock's max range of ~584 years. This is nice but with + * higher computation cost. */ { union { diff --git a/arch/arm/mach-pxa/time.c b/arch/arm/mach-pxa/time.c index 3775b8f3842..ee2beb40041 100644 --- a/arch/arm/mach-pxa/time.c +++ b/arch/arm/mach-pxa/time.c @@ -101,7 +101,7 @@ static struct irqaction pxa_timer_irq = { .handler = pxa_timer_interrupt, }; -cycle_t pxa_get_cycles(void) +static cycle_t pxa_get_cycles(void) { return OSCR; } @@ -134,13 +134,13 @@ static void __init pxa_timer_init(void) OSMR0 = OSCR + LATCH; /* set initial match */ local_irq_restore(flags); - /* on PXA OSCR runs continiously and is not written to, so we can use it - * as clock source directly. + /* + * OSCR runs continuously on PXA and is not written to, + * so we can use it as clock source directly. */ clocksource_pxa.mult = clocksource_hz2mult(CLOCK_TICK_RATE, clocksource_pxa.shift); clocksource_register(&clocksource_pxa); - } #ifdef CONFIG_NO_IDLE_HZ diff --git a/arch/arm/mach-s3c2410/dma.c b/arch/arm/mach-s3c2410/dma.c index 717322a0916..fa860e716b4 100644 --- a/arch/arm/mach-s3c2410/dma.c +++ b/arch/arm/mach-s3c2410/dma.c @@ -1053,11 +1053,11 @@ int s3c2410_dma_config(dmach_t channel, if (chan == NULL) return -EINVAL; - printk("Initial dcon is %08x\n", dcon); + pr_debug("%s: Initial dcon is %08x\n", __FUNCTION__, dcon); dcon |= chan->dcon & dma_sel.dcon_mask; - printk("New dcon is %08x\n", dcon); + pr_debug("%s: New dcon is %08x\n", __FUNCTION__, dcon); switch (xferunit) { case 1: diff --git a/arch/arm/mm/copypage-v4mc.c b/arch/arm/mm/copypage-v4mc.c index 408b05ae6b9..ded0e96d069 100644 --- a/arch/arm/mm/copypage-v4mc.c +++ b/arch/arm/mm/copypage-v4mc.c @@ -19,6 +19,7 @@ #include <asm/page.h> #include <asm/pgtable.h> #include <asm/tlbflush.h> +#include <asm/cacheflush.h> #include "mm.h" @@ -69,6 +70,11 @@ mc_copy_user_page(void *from, void *to) void v4_mc_copy_user_page(void *kto, const void *kfrom, unsigned long vaddr) { + struct page *page = virt_to_page(kfrom); + + if (test_and_clear_bit(PG_dcache_dirty, &page->flags)) + __flush_dcache_page(page_mapping(page), page); + spin_lock(&minicache_lock); set_pte_ext(TOP_PTE(0xffff8000), pfn_pte(__pa(kfrom) >> PAGE_SHIFT, minicache_pgprot), 0); diff --git a/arch/arm/mm/copypage-v6.c b/arch/arm/mm/copypage-v6.c index 865777dec16..3adb79257f4 100644 --- a/arch/arm/mm/copypage-v6.c +++ b/arch/arm/mm/copypage-v6.c @@ -53,6 +53,10 @@ static void v6_copy_user_page_aliasing(void *kto, const void *kfrom, unsigned lo { unsigned int offset = CACHE_COLOUR(vaddr); unsigned long from, to; + struct page *page = virt_to_page(kfrom); + + if (test_and_clear_bit(PG_dcache_dirty, &page->flags)) + __flush_dcache_page(page_mapping(page), page); /* * Discard data in the kernel mapping for the new page. diff --git a/arch/arm/mm/copypage-xscale.c b/arch/arm/mm/copypage-xscale.c index aea5da72359..2e455f82a4d 100644 --- a/arch/arm/mm/copypage-xscale.c +++ b/arch/arm/mm/copypage-xscale.c @@ -19,6 +19,7 @@ #include <asm/page.h> #include <asm/pgtable.h> #include <asm/tlbflush.h> +#include <asm/cacheflush.h> #include "mm.h" @@ -91,6 +92,11 @@ mc_copy_user_page(void *from, void *to) void xscale_mc_copy_user_page(void *kto, const void *kfrom, unsigned long vaddr) { + struct page *page = virt_to_page(kfrom); + + if (test_and_clear_bit(PG_dcache_dirty, &page->flags)) + __flush_dcache_page(page_mapping(page), page); + spin_lock(&minicache_lock); set_pte_ext(TOP_PTE(COPYPAGE_MINICACHE), pfn_pte(__pa(kfrom) >> PAGE_SHIFT, minicache_pgprot), 0); diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c index e26cc1f5994..490d9d18a7d 100644 --- a/arch/arm/vfp/vfpmodule.c +++ b/arch/arm/vfp/vfpmodule.c @@ -264,6 +264,18 @@ void VFP9_bounce(u32 trigger, u32 fpexc, struct pt_regs *regs) vfp_raise_exceptions(exceptions, trigger, orig_fpscr, regs); } +static void vfp_enable(void *unused) +{ + u32 access = get_copro_access(); + + /* + * Enable full access to VFP (cp10 and cp11) + */ + set_copro_access(access | CPACC_FULL(10) | CPACC_FULL(11)); +} + +#include <linux/smp.h> + /* * VFP support code initialisation. */ @@ -288,6 +300,7 @@ static int __init vfp_init(void) * we just need to read the VFPSID register. */ vfpsid = fmrx(FPSID); + barrier(); printk(KERN_INFO "VFP support v0.3: "); if (VFP_arch) { @@ -301,6 +314,8 @@ static int __init vfp_init(void) } else if (vfpsid & FPSID_NODOUBLE) { printk("no double precision support\n"); } else { + smp_call_function(vfp_enable, NULL, 1, 1); + VFP_arch = (vfpsid & FPSID_ARCH_MASK) >> FPSID_ARCH_BIT; /* Extract the architecture version */ printk("implementor %02x architecture %d part %02x variant %x rev %x\n", (vfpsid & FPSID_IMPLEMENTER_MASK) >> FPSID_IMPLEMENTER_BIT, diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig index 0d67a0a1151..0dfee812811 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 00000000000..be0ed065249 --- /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 f395a4bb38b..3517a32aaf4 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 e075ff05c46..88b7c1cf65a 100644 --- a/arch/i386/defconfig +++ b/arch/i386/defconfig @@ -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 diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c index 094300b3a81..cbcb2c27f48 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/cpu/common.c b/arch/i386/kernel/cpu/common.c index 1b34c56f812..8689d62abd4 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) { diff --git a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c index b735458c6e3..10baa3501ed 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 6d9c97a690f..e940e00b96c 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 5113e923163..f43b987f952 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/smpboot.c b/arch/i386/kernel/smpboot.c index aef39be8136..300d9b38d02 100644 --- a/arch/i386/kernel/smpboot.c +++ b/arch/i386/kernel/smpboot.c @@ -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; diff --git a/arch/i386/kernel/trampoline.S b/arch/i386/kernel/trampoline.S index fcce0e61b0e..2f1814c5cfd 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/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c index cbbc98846b0..987ec6782f9 100644 --- a/arch/sparc/kernel/ioport.c +++ b/arch/sparc/kernel/ioport.c @@ -153,7 +153,7 @@ void __iomem *of_ioremap(struct resource *res, unsigned long offset, } EXPORT_SYMBOL(of_ioremap); -void of_iounmap(void __iomem *base, unsigned long size) +void of_iounmap(struct resource *res, void __iomem *base, unsigned long size) { iounmap(base); } @@ -726,7 +726,8 @@ int pci_map_sg(struct pci_dev *hwdev, struct scatterlist *sg, int nents, /* IIep is write-through, not flushing. */ for (n = 0; n < nents; n++) { BUG_ON(page_address(sg->page) == NULL); - sg->dvma_address = virt_to_phys(page_address(sg->page)); + sg->dvma_address = + virt_to_phys(page_address(sg->page)) + sg->offset; sg->dvma_length = sg->length; sg++; } diff --git a/arch/sparc64/defconfig b/arch/sparc64/defconfig index 0f0d38f6197..5a9e68b13e6 100644 --- a/arch/sparc64/defconfig +++ b/arch/sparc64/defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.19 -# Sat Dec 9 15:41:30 2006 +# Linux kernel version: 2.6.20-rc2 +# Thu Dec 28 15:09:49 2006 # CONFIG_SPARC=y CONFIG_SPARC64=y @@ -334,7 +334,7 @@ CONFIG_BLK_DEV_LOOP=m CONFIG_BLK_DEV_CRYPTOLOOP=m CONFIG_BLK_DEV_NBD=m # CONFIG_BLK_DEV_SX8 is not set -CONFIG_BLK_DEV_UB=m +# CONFIG_BLK_DEV_UB is not set # CONFIG_BLK_DEV_RAM is not set # CONFIG_BLK_DEV_INITRD is not set CONFIG_CDROM_PKTCDVD=m @@ -840,6 +840,7 @@ CONFIG_HWMON=y # CONFIG_SENSORS_LM92 is not set # CONFIG_SENSORS_MAX1619 is not set # CONFIG_SENSORS_PC87360 is not set +# CONFIG_SENSORS_PC87427 is not set # CONFIG_SENSORS_SIS5595 is not set # CONFIG_SENSORS_SMSC47M1 is not set # CONFIG_SENSORS_SMSC47M192 is not set @@ -850,6 +851,7 @@ CONFIG_HWMON=y # CONFIG_SENSORS_W83781D is not set # CONFIG_SENSORS_W83791D is not set # CONFIG_SENSORS_W83792D is not set +# CONFIG_SENSORS_W83793 is not set # CONFIG_SENSORS_W83L785TS is not set # CONFIG_SENSORS_W83627HF is not set # CONFIG_SENSORS_W83627EHF is not set @@ -962,7 +964,6 @@ CONFIG_SND_VERBOSE_PROCFS=y # CONFIG_SND_MPU401_UART=m CONFIG_SND_AC97_CODEC=m -CONFIG_SND_AC97_BUS=m CONFIG_SND_DUMMY=m CONFIG_SND_VIRMIDI=m CONFIG_SND_MTPAV=m @@ -1045,6 +1046,7 @@ CONFIG_SND_SUN_CS4231=m # Open Sound System # # CONFIG_SOUND_PRIME is not set +CONFIG_AC97_BUS=m # # HID Devices @@ -1096,14 +1098,26 @@ CONFIG_USB_UHCI_HCD=m # # may also be needed; see USB_STORAGE Help for more information # -# CONFIG_USB_STORAGE is not set +CONFIG_USB_STORAGE=m +# CONFIG_USB_STORAGE_DEBUG is not set +# CONFIG_USB_STORAGE_DATAFAB is not set +# CONFIG_USB_STORAGE_FREECOM is not set +# CONFIG_USB_STORAGE_ISD200 is not set +# CONFIG_USB_STORAGE_DPCM is not set +# CONFIG_USB_STORAGE_USBAT is not set +# CONFIG_USB_STORAGE_SDDR09 is not set +# CONFIG_USB_STORAGE_SDDR55 is not set +# CONFIG_USB_STORAGE_JUMPSHOT is not set +# CONFIG_USB_STORAGE_ALAUDA is not set +# CONFIG_USB_STORAGE_ONETOUCH is not set +# CONFIG_USB_STORAGE_KARMA is not set # CONFIG_USB_LIBUSUAL is not set # # 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=y # CONFIG_USB_AIPTEK is not set @@ -1222,6 +1236,10 @@ CONFIG_USB_HIDDEV=y # # +# Virtualization +# + +# # Misc Linux/SPARC drivers # CONFIG_SUN_OPENPROMIO=m @@ -1397,6 +1415,8 @@ CONFIG_PRINTK_TIME=y CONFIG_ENABLE_MUST_CHECK=y CONFIG_MAGIC_SYSRQ=y # CONFIG_UNUSED_SYMBOLS is not set +CONFIG_DEBUG_FS=y +# CONFIG_HEADERS_CHECK is not set CONFIG_DEBUG_KERNEL=y CONFIG_LOG_BUF_SHIFT=18 CONFIG_DETECT_SOFTLOCKUP=y @@ -1414,12 +1434,9 @@ CONFIG_SCHEDSTATS=y # CONFIG_DEBUG_KOBJECT is not set CONFIG_DEBUG_BUGVERBOSE=y # CONFIG_DEBUG_INFO is not set -CONFIG_DEBUG_FS=y # CONFIG_DEBUG_VM is not set # CONFIG_DEBUG_LIST is not set -# CONFIG_UNWIND_INFO is not set CONFIG_FORCED_INLINING=y -# CONFIG_HEADERS_CHECK is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_LKDTM is not set # CONFIG_DEBUG_STACK_USAGE is not set @@ -1489,3 +1506,4 @@ CONFIG_LIBCRC32C=m CONFIG_ZLIB_INFLATE=y CONFIG_ZLIB_DEFLATE=y CONFIG_PLIST=y +CONFIG_IOMAP_COPY=y diff --git a/arch/sparc64/kernel/isa.c b/arch/sparc64/kernel/isa.c index ad1c4f55420..98721a8f861 100644 --- a/arch/sparc64/kernel/isa.c +++ b/arch/sparc64/kernel/isa.c @@ -22,14 +22,15 @@ static void __init report_dev(struct sparc_isa_device *isa_dev, int child) printk(" [%s", isa_dev->prom_node->name); } -static struct linux_prom_registers * __init -isa_dev_get_resource(struct sparc_isa_device *isa_dev) +static void __init isa_dev_get_resource(struct sparc_isa_device *isa_dev) { struct linux_prom_registers *pregs; unsigned long base, len; int prop_len; pregs = of_get_property(isa_dev->prom_node, "reg", &prop_len); + if (!pregs) + return; /* Only the first one is interesting. */ len = pregs[0].reg_size; @@ -44,12 +45,9 @@ isa_dev_get_resource(struct sparc_isa_device *isa_dev) request_resource(&isa_dev->bus->parent->io_space, &isa_dev->resource); - - return pregs; } -static void __init isa_dev_get_irq(struct sparc_isa_device *isa_dev, - struct linux_prom_registers *pregs) +static void __init isa_dev_get_irq(struct sparc_isa_device *isa_dev) { struct of_device *op = of_find_device_by_node(isa_dev->prom_node); @@ -69,7 +67,6 @@ static void __init isa_fill_children(struct sparc_isa_device *parent_isa_dev) printk(" ->"); while (dp) { - struct linux_prom_registers *regs; struct sparc_isa_device *isa_dev; isa_dev = kzalloc(sizeof(*isa_dev), GFP_KERNEL); @@ -85,8 +82,8 @@ static void __init isa_fill_children(struct sparc_isa_device *parent_isa_dev) isa_dev->bus = parent_isa_dev->bus; isa_dev->prom_node = dp; - regs = isa_dev_get_resource(isa_dev); - isa_dev_get_irq(isa_dev, regs); + isa_dev_get_resource(isa_dev); + isa_dev_get_irq(isa_dev); report_dev(isa_dev, 1); @@ -99,7 +96,6 @@ static void __init isa_fill_devices(struct sparc_isa_bridge *isa_br) struct device_node *dp = isa_br->prom_node->child; while (dp) { - struct linux_prom_registers *regs; struct sparc_isa_device *isa_dev; isa_dev = kzalloc(sizeof(*isa_dev), GFP_KERNEL); @@ -137,8 +133,8 @@ static void __init isa_fill_devices(struct sparc_isa_bridge *isa_br) isa_dev->bus = isa_br; isa_dev->prom_node = dp; - regs = isa_dev_get_resource(isa_dev); - isa_dev_get_irq(isa_dev, regs); + isa_dev_get_resource(isa_dev); + isa_dev_get_irq(isa_dev); report_dev(isa_dev, 0); diff --git a/arch/sparc64/kernel/of_device.c b/arch/sparc64/kernel/of_device.c index cec0eceae55..b0f3e0082a0 100644 --- a/arch/sparc64/kernel/of_device.c +++ b/arch/sparc64/kernel/of_device.c @@ -144,9 +144,12 @@ void __iomem *of_ioremap(struct resource *res, unsigned long offset, unsigned lo } EXPORT_SYMBOL(of_ioremap); -void of_iounmap(void __iomem *base, unsigned long size) +void of_iounmap(struct resource *res, void __iomem *base, unsigned long size) { - release_region((unsigned long) base, size); + if (res->flags & IORESOURCE_MEM) + release_mem_region((unsigned long) base, size); + else + release_region((unsigned long) base, size); } EXPORT_SYMBOL(of_iounmap); diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c index a8e8802eed4..054822a3e05 100644 --- a/arch/sparc64/mm/init.c +++ b/arch/sparc64/mm/init.c @@ -872,6 +872,115 @@ static unsigned long __init choose_bootmap_pfn(unsigned long start_pfn, prom_halt(); } +static void __init trim_pavail(unsigned long *cur_size_p, + unsigned long *end_of_phys_p) +{ + unsigned long to_trim = *cur_size_p - cmdline_memory_size; + unsigned long avoid_start, avoid_end; + int i; + + to_trim = PAGE_ALIGN(to_trim); + + avoid_start = avoid_end = 0; +#ifdef CONFIG_BLK_DEV_INITRD + avoid_start = initrd_start; + avoid_end = PAGE_ALIGN(initrd_end); +#endif + + /* Trim some pavail[] entries in order to satisfy the + * requested "mem=xxx" kernel command line specification. + * + * We must not trim off the kernel image area nor the + * initial ramdisk range (if any). Also, we must not trim + * any pavail[] entry down to zero in order to preserve + * the invariant that all pavail[] entries have a non-zero + * size which is assumed by all of the code in here. + */ + for (i = 0; i < pavail_ents; i++) { + unsigned long start, end, kern_end; + unsigned long trim_low, trim_high, n; + + kern_end = PAGE_ALIGN(kern_base + kern_size); + + trim_low = start = pavail[i].phys_addr; + trim_high = end = start + pavail[i].reg_size; + + if (kern_base >= start && + kern_base < end) { + trim_low = kern_base; + if (kern_end >= end) + continue; + } + if (kern_end >= start && + kern_end < end) { + trim_high = kern_end; + } + if (avoid_start && + avoid_start >= start && + avoid_start < end) { + if (trim_low > avoid_start) + trim_low = avoid_start; + if (avoid_end >= end) + continue; + } + if (avoid_end && + avoid_end >= start && + avoid_end < end) { + if (trim_high < avoid_end) + trim_high = avoid_end; + } + + if (trim_high <= trim_low) + continue; + + if (trim_low == start && trim_high == end) { + /* Whole chunk is available for trimming. + * Trim all except one page, in order to keep + * entry non-empty. + */ + n = (end - start) - PAGE_SIZE; + if (n > to_trim) + n = to_trim; + + if (n) { + pavail[i].phys_addr += n; + pavail[i].reg_size -= n; + to_trim -= n; + } + } else { + n = (trim_low - start); + if (n > to_trim) + n = to_trim; + + if (n) { + pavail[i].phys_addr += n; + pavail[i].reg_size -= n; + to_trim -= n; + } + if (to_trim) { + n = end - trim_high; + if (n > to_trim) + n = to_trim; + if (n) { + pavail[i].reg_size -= n; + to_trim -= n; + } + } + } + + if (!to_trim) + break; + } + + /* Recalculate. */ + *cur_size_p = 0UL; + for (i = 0; i < pavail_ents; i++) { + *end_of_phys_p = pavail[i].phys_addr + + pavail[i].reg_size; + *cur_size_p += pavail[i].reg_size; + } +} + static unsigned long __init bootmem_init(unsigned long *pages_avail, unsigned long phys_base) { @@ -889,31 +998,13 @@ static unsigned long __init bootmem_init(unsigned long *pages_avail, end_of_phys_memory = pavail[i].phys_addr + pavail[i].reg_size; bytes_avail += pavail[i].reg_size; - if (cmdline_memory_size) { - if (bytes_avail > cmdline_memory_size) { - unsigned long slack = bytes_avail - cmdline_memory_size; - - bytes_avail -= slack; - end_of_phys_memory -= slack; - - pavail[i].reg_size -= slack; - if ((long)pavail[i].reg_size <= 0L) { - pavail[i].phys_addr = 0xdeadbeefUL; - pavail[i].reg_size = 0UL; - pavail_ents = i; - } else { - pavail[i+1].reg_size = 0Ul; - pavail[i+1].phys_addr = 0xdeadbeefUL; - pavail_ents = i + 1; - } - break; - } - } } - *pages_avail = bytes_avail >> PAGE_SHIFT; - - end_pfn = end_of_phys_memory >> PAGE_SHIFT; + /* Determine the location of the initial ramdisk before trying + * to honor the "mem=xxx" command line argument. We must know + * where the kernel image and the ramdisk image are so that we + * do not trim those two areas from the physical memory map. + */ #ifdef CONFIG_BLK_DEV_INITRD /* Now have to check initial ramdisk, so that bootmap does not overwrite it */ @@ -932,6 +1023,16 @@ static unsigned long __init bootmem_init(unsigned long *pages_avail, } } #endif + + if (cmdline_memory_size && + bytes_avail > cmdline_memory_size) + trim_pavail(&bytes_avail, + &end_of_phys_memory); + + *pages_avail = bytes_avail >> PAGE_SHIFT; + + end_pfn = end_of_phys_memory >> PAGE_SHIFT; + /* Initialize the boot-time allocator. */ max_pfn = max_low_pfn = end_pfn; min_low_pfn = (phys_base >> PAGE_SHIFT); diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig index ef667245569..d4275537b25 100644 --- a/arch/x86_64/Kconfig +++ b/arch/x86_64/Kconfig @@ -480,13 +480,14 @@ config CALGARY_IOMMU config CALGARY_IOMMU_ENABLED_BY_DEFAULT bool "Should Calgary be enabled by default?" + default y depends on CALGARY_IOMMU help - Should Calgary be enabled by default? If you choose 'y', Calgary + Should Calgary be enabled by default? if you choose 'y', Calgary will be used (if it exists). If you choose 'n', Calgary will not be used even if it exists. If you choose 'n' and would like to use Calgary anyway, pass 'iommu=calgary' on the kernel command line. - If unsure, say N. + If unsure, say Y. # need this always selected by IOMMU for the VIA workaround config SWIOTLB diff --git a/arch/x86_64/defconfig b/arch/x86_64/defconfig index ac80b1209fc..9cc7c21547a 100644 --- a/arch/x86_64/defconfig +++ b/arch/x86_64/defconfig @@ -1191,7 +1191,7 @@ 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 diff --git a/arch/x86_64/kernel/cpufreq/Kconfig b/arch/x86_64/kernel/cpufreq/Kconfig index 3abcfa3e1ed..45a6a1fd14a 100644 --- a/arch/x86_64/kernel/cpufreq/Kconfig +++ b/arch/x86_64/kernel/cpufreq/Kconfig @@ -49,6 +49,7 @@ config X86_SPEEDSTEP_CENTRINO_ACPI config X86_ACPI_CPUFREQ tristate "ACPI Processor P-States driver" + select CPU_FREQ_TABLE depends on ACPI_PROCESSOR help This driver adds a CPUFreq driver which utilizes the ACPI diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c index 1d9eb6db732..09d2e8a10a4 100644 --- a/arch/x86_64/kernel/traps.c +++ b/arch/x86_64/kernel/traps.c @@ -319,7 +319,7 @@ void dump_trace(struct task_struct *tsk, struct pt_regs *regs, /* * This handles the process stack: */ - tinfo = current_thread_info(); + tinfo = task_thread_info(tsk); HANDLE_STACK (valid_stack_ptr(tinfo, stack)); #undef HANDLE_STACK put_cpu(); |