isolate - enable device isolation (each device, as far
as possible, will get its own protection
domain)
+ fullflush - enable flushing of IO/TLB entries when
+ they are unmapped. Otherwise they are
+ flushed before they will be reused, which
+ is a lot of faster
+
amd_iommu_size= [HW,X86-64]
Define the size of the aperture for the AMD IOMMU
driver. Possible values are:
Range: 0 - 8192
Default: 64
- disable_8254_timer
- enable_8254_timer
- [IA32/X86_64] Disable/Enable interrupt 0 timer routing
- over the 8254 in addition to over the IO-APIC. The
- kernel tries to set a sensible default.
-
hpet= [X86-32,HPET] option to control HPET usage
Format: { enable (default) | disable | force }
disable: disable HPET and use PIT instead
earlyprintk= [X86-32,X86-64,SH,BLACKFIN]
earlyprintk=vga
earlyprintk=serial[,ttySn[,baudrate]]
+ earlyprintk=dbgp
Append ",keep" to not disable it when the real console
takes over.
- Only vga or serial at a time, not both.
+ Only vga or serial or usb debug port at a time.
Currently only ttyS0 and ttyS1 are supported.
Defaults to the default architecture's huge page size
if not specified.
+ hlt [BUGS=ARM,SH]
+
+ i8042.debug [HW] Toggle i8042 debug mode
i8042.direct [HW] Put keyboard port into non-translated mode
i8042.dumbkbd [HW] Pretend that controller can only read data from
keyboard and cannot control its state
(only serial suported for now)
Format: <serial_device>[,baud]
+ kmac= [MIPS] korina ethernet MAC address.
+ Configure the RouterBoard 532 series on-chip
+ Ethernet adapter MAC address.
+
l2cr= [PPC]
l3cr= [PPC]
mem=nopentium [BUGS=X86-32] Disable usage of 4MB pages for kernel
memory.
+ memchunk=nn[KMG]
+ [KNL,SH] Allow user to override the default size for
+ per-device physically contiguous DMA buffers.
+
memmap=exactmap [KNL,X86-32,X86_64] Enable setting of an exact
E820 memory map, as specified by the user.
Such memmap=exactmap lines can be constructed based on
or
memmap=0x10000$0x18690000
+ memory_corruption_check=0/1 [X86]
+ Some BIOSes seem to corrupt the first 64k of
+ memory when doing things like suspend/resume.
+ Setting this option will scan the memory
+ looking for corruption. Enabling this will
+ both detect corruption and prevent the kernel
+ from using the memory being corrupted.
+ However, its intended as a diagnostic tool; if
+ repeatable BIOS-originated corruption always
+ affects the same memory, you can use memmap=
+ to prevent the kernel from using that memory.
+
+ memory_corruption_check_size=size [X86]
+ By default it checks for corruption in the low
+ 64k, making this memory unavailable for normal
+ use. Use this parameter to scan for
+ corruption in more or less memory.
+
+ memory_corruption_check_period=seconds [X86]
+ By default it checks for corruption every 60
+ seconds. Use this parameter to check at some
+ other rate. 0 disables periodic checking.
+
memtest= [KNL,X86] Enable memtest
Format: <integer>
range: 0,4 : pattern number
nodisconnect [HW,SCSI,M68K] Disables SCSI disconnects.
+ nodsp [SH] Disable hardware DSP at boot time.
+
noefi [X86-32,X86-64] Disable EFI runtime services support.
noexec [IA-64]
noexec32=off: disable non-executable mappings
read implies executable mappings
+ nofpu [SH] Disable hardware FPU at boot time.
+
nofxsr [BUGS=X86-32] Disables x86 floating point extended
register save and restore. The kernel will only save
legacy floating-point registers on task switch.
noclflush [BUGS=X86] Don't use the CLFLUSH instruction
- nohlt [BUGS=ARM]
+ nohlt [BUGS=ARM,SH]
no-hlt [BUGS=X86-32] Tells the kernel that the hlt
instruction doesn't work correctly and not to
nolapic_timer [X86-32,APIC] Do not use the local APIC timer.
+ nox2apic [X86-64,APIC] Do not enable x2APIC mode.
+
+ x2apic_phys [X86-64,APIC] Use x2apic physical mode instead of
+ default x2apic cluster mode on platforms
+ supporting x2apic.
+
noltlbs [PPC] Do not use large page/tlb entries for kernel
lowmem mapping on PPC40x.
autoconfiguration.
Ranges are in pairs (memory base and size).
+ dynamic_printk
+ Enables pr_debug()/dev_dbg() calls if
+ CONFIG_DYNAMIC_PRINTK_DEBUG has been enabled. These can also
+ be switched on/off via <debugfs>/dynamic_printk/modules
+
print-fatal-signals=
[KNL] debug: print fatal signals
print-fatal-signals=1: print segfault info to
shapers= [NET]
Maximal number of shapers.
+ show_msr= [x86] show boot-time MSR settings
+ Format: { <integer> }
+ Show boot-time (BIOS-initialized) MSR settings.
+ The parameter means the number of CPUs to show,
+ for example 1 means boot CPU only.
+
sim710= [SCSI,HW]
See header of drivers/scsi/sim710.c.
autosuspended. Devices for which the delay is set
to a negative value won't be autosuspended at all.
+ usbcore.usbfs_snoop=
+ [USB] Set to log all usbfs traffic (default 0 = off).
+
+ usbcore.blinkenlights=
+ [USB] Set to cycle leds on hubs (default 0 = off).
+
+ usbcore.old_scheme_first=
+ [USB] Start with the old device initialization
+ scheme (default 0 = off).
+
+ usbcore.use_both_schemes=
+ [USB] Try the other device initialization scheme
+ if the first one fails (default 1 = enabled).
+
+ usbcore.initial_descriptor_timeout=
+ [USB] Specifies timeout for the initial 64-byte
+ USB_REQ_GET_DESCRIPTOR request in milliseconds
+ (default 5000 = 5.0 seconds).
+
usbhid.mousepoll=
[USBHID] The interval which mice are to be polled at.
*
* SMP support for the SuperH processors.
*
- * Copyright (C) 2002 - 2007 Paul Mundt
+ * Copyright (C) 2002 - 2008 Paul Mundt
* Copyright (C) 2006 - 2007 Akio Idehara
*
* This file is subject to the terms and conditions of the GNU General Public
preempt_disable();
+ notify_cpu_starting(smp_processor_id());
+
local_irq_enable();
+ cpu = smp_processor_id();
+
+ /* Enable local timers */
+ local_timer_setup(cpu);
calibrate_delay();
- cpu = smp_processor_id();
smp_store_cpu_info(cpu);
cpu_set(cpu, cpu_online_map);
plat_send_ipi(cpu, SMP_MSG_FUNCTION_SINGLE);
}
+void smp_timer_broadcast(cpumask_t mask)
+{
+ int cpu;
+
+ for_each_cpu_mask(cpu, mask)
+ plat_send_ipi(cpu, SMP_MSG_TIMER);
+}
+
+static void ipi_timer(void)
+{
+ irq_enter();
+ local_timer_interrupt();
+ irq_exit();
+}
+
+void smp_message_recv(unsigned int msg)
+{
+ switch (msg) {
+ case SMP_MSG_FUNCTION:
+ generic_smp_call_function_interrupt();
+ break;
+ case SMP_MSG_RESCHEDULE:
+ break;
+ case SMP_MSG_FUNCTION_SINGLE:
+ generic_smp_call_function_single_interrupt();
+ break;
+ case SMP_MSG_TIMER:
+ ipi_timer();
+ break;
+ default:
+ printk(KERN_WARNING "SMP %d: %s(): unknown IPI %d\n",
+ smp_processor_id(), __func__, msg);
+ break;
+ }
+}
+
/* Not really SMP stuff ... */
int setup_profiling_timer(unsigned int multiplier)
{
spin_unlock_irq(&rtc->lock);
}
- static void sh_rtc_release(struct device *dev)
- {
- sh_rtc_setpie(dev, 0);
- sh_rtc_setaie(dev, 0);
- }
-
static int sh_rtc_proc(struct device *dev, struct seq_file *seq)
{
struct sh_rtc *rtc = dev_get_drvdata(dev);
}
static struct rtc_class_ops sh_rtc_ops = {
- .release = sh_rtc_release,
.ioctl = sh_rtc_ioctl,
.read_time = sh_rtc_read_time,
.set_time = sh_rtc_set_time,
struct sh_rtc *rtc;
struct resource *res;
unsigned int tmp;
- int ret = -ENOENT;
+ int ret;
rtc = kzalloc(sizeof(struct sh_rtc), GFP_KERNEL);
if (unlikely(!rtc))
spin_lock_init(&rtc->lock);
/* get periodic/carry/alarm irqs */
- rtc->periodic_irq = platform_get_irq(pdev, 0);
- if (unlikely(rtc->periodic_irq < 0)) {
+ ret = platform_get_irq(pdev, 0);
+ if (unlikely(ret < 0)) {
+ ret = -ENOENT;
dev_err(&pdev->dev, "No IRQ for period\n");
goto err_badres;
}
+ rtc->periodic_irq = ret;
- rtc->carry_irq = platform_get_irq(pdev, 1);
- if (unlikely(rtc->carry_irq < 0)) {
+ ret = platform_get_irq(pdev, 1);
+ if (unlikely(ret < 0)) {
+ ret = -ENOENT;
dev_err(&pdev->dev, "No IRQ for carry\n");
goto err_badres;
}
+ rtc->carry_irq = ret;
- rtc->alarm_irq = platform_get_irq(pdev, 2);
- if (unlikely(rtc->alarm_irq < 0)) {
+ ret = platform_get_irq(pdev, 2);
+ if (unlikely(ret < 0)) {
+ ret = -ENOENT;
dev_err(&pdev->dev, "No IRQ for alarm\n");
goto err_badres;
}
+ rtc->alarm_irq = ret;
res = platform_get_resource(pdev, IORESOURCE_IO, 0);
if (unlikely(res == NULL)) {
+ ret = -ENOENT;
dev_err(&pdev->dev, "No IO resource\n");
goto err_badres;
}
projects / deliverable / linux.git / commitdiff
