* 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6:
intel_idle: native hardware cpuidle driver for latest Intel processors
ACPI: acpi_idle: touch TS_POLLING only in the non-MWAIT case
acpi_pad: uses MONITOR/MWAIT, so it doesn't need to clear TS_POLLING
sched: clarify commment for TS_POLLING
ACPI: allow a native cpuidle driver to displace ACPI
cpuidle: make cpuidle_curr_driver static
cpuidle: add cpuidle_unregister_driver() error check
cpuidle: fail to register if !CONFIG_CPU_IDLE
S: Maintained
F: drivers/net/typhoon*
-3W-9XXX SATA-RAID CONTROLLER DRIVER
-M: Adam Radford <linuxraid@amcc.com>
+3WARE SAS/SATA-RAID SCSI DRIVERS (3W-XXXX, 3W-9XXX, 3W-SAS)
+M: Adam Radford <linuxraid@lsi.com>
-W: http://www.amcc.com
+W: http://www.lsi.com
S: Supported
-F: drivers/scsi/3w-9xxx*
-
-3W-XXXX ATA-RAID CONTROLLER DRIVER
-W: http://www.amcc.com
-S: Supported
-F: drivers/scsi/3w-xxxx*
+F: drivers/scsi/3w-*
53C700 AND 53C700-66 SCSI DRIVER
F: drivers/mtd/nand/bcm_umi_hamming.c
F: drivers/mtd/nand/nand_bcm_umi.h
+ARM/CAVIUM NETWORKS CNS3XXX MACHINE SUPPORT
+S: Maintained
+F: arch/arm/mach-cns3xxx/
+T: git git://git.infradead.org/users/cbou/linux-cns3xxx.git
+
ARM/CIRRUS LOGIC EP93XX ARM ARCHITECTURE
S: Maintained
ARM/Marvell Loki/Kirkwood/MV78xx0/Orion SOC support
-M: Nicolas Pitre <nico@marvell.com>
+M: Nicolas Pitre <nico@fluxnic.net>
-T: git git://git.marvell.com/orion
-S: Maintained
+S: Odd Fixes
F: arch/arm/mach-loki/
F: arch/arm/mach-kirkwood/
F: arch/arm/mach-mv78xx0/
F: arch/arm/mach-msm/
F: drivers/video/msm/
F: drivers/mmc/host/msm_sdcc.c
W: http://www.mcuos.com
S: Maintained
+F: arch/arm/mach-w90x900/
+F: arch/arm/mach-nuc93x/
+F: drivers/input/keyboard/w90p910_keypad.c
+F: drivers/input/touchscreen/w90p910_ts.c
+F: drivers/watchdog/nuc900_wdt.c
+F: drivers/net/arm/w90p910_ether.c
+F: drivers/mtd/nand/w90p910_nand.c
+F: drivers/rtc/rtc-nuc900.c
+F: drivers/spi/spi_nuc900.c
+F: drivers/usb/host/ehci-w90x900.c
+F: drivers/video/nuc900fb.c
+F: drivers/sound/soc/nuc900/
ARM/U300 MACHINE SUPPORT
S: Maintained
F: arch/arm/vfp/
+ARM/VOIPAC PXA270 SUPPORT
+S: Maintained
+F: arch/arm/mach-pxa/vpac270.c
+F: arch/arm/mach-pxa/include/mach-pxa/vpac270.h
+
+ARM/ZIPIT Z2 SUPPORT
+S: Maintained
+F: arch/arm/mach-pxa/z2.c
+F: arch/arm/mach-pxa/include/mach-pxa/z2.h
+
ASC7621 HARDWARE MONITOR DRIVER
S: Supported
F: scripts/checkpatch.pl
-CISCO 10G ETHERNET DRIVER
+CISCO VIC ETHERNET NIC DRIVER
S: Supported
F: drivers/net/enic/
S: Supported
F: drivers/infiniband/hw/cxgb3/
+CXGB4 ETHERNET DRIVER (CXGB4)
+W: http://www.chelsio.com
+S: Supported
+F: drivers/net/cxgb4/
+
+CXGB4 IWARP RNIC DRIVER (IW_CXGB4)
+W: http://www.openfabrics.org
+S: Supported
+F: drivers/infiniband/hw/cxgb4/
+
CYBERPRO FB DRIVER
F: drivers/char/hpet.c
F: include/linux/hpet.h
-HPET: i386
-M: "Venkatesh Pallipadi (Venki)" <venkatesh.pallipadi@intel.com>
+HPET: x86
+M: "Venkatesh Pallipadi (Venki)" <venki@google.com>
S: Maintained
F: arch/x86/kernel/hpet.c
F: arch/x86/include/asm/hpet.h
-HPET: x86_64
-S: Maintained
-
HPET: ACPI
S: Maintained
W: http://i2c.wiki.kernel.org/
T: quilt kernel.org/pub/linux/kernel/people/jdelvare/linux-2.6/jdelvare-i2c/
+T: git git://git.fluff.org/bjdooks/linux.git
S: Maintained
F: Documentation/i2c/
F: drivers/i2c/
S: Maintained
F: drivers/input/
+ INTEL IDLE DRIVER
+ T: git git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6.git
+ S: Supported
+ F: drivers/idle/intel_idle.c
+
INTEL FRAMEBUFFER DRIVER (excluding 810 and 815)
F: Documentation/networking/README.ipw2200
F: drivers/net/wireless/ipw2x00/ipw2200.*
+INTEL(R) TRUSTED EXECUTION TECHNOLOGY (TXT)
+W: http://tboot.sourceforge.net
+T: Mercurial http://www.bughost.org/repos.hg/tboot.hg
+S: Supported
+F: Documentation/intel_txt.txt
+F: include/linux/tboot.h
+F: arch/x86/kernel/tboot.c
+
INTEL WIRELESS WIMAX CONNECTION 2400
IP1000A 10/100/1000 GIGABIT ETHERNET DRIVER
S: Maintained
-F: drivers/net/ipg.c
+F: drivers/net/ipg.*
IPATH DRIVER
F: include/keys/
F: security/keys/
-KGDB
+KGDB / KDB /debug_core
+W: http://kgdb.wiki.kernel.org/
S: Maintained
F: Documentation/DocBook/kgdb.tmpl
F: drivers/misc/kgdbts.c
F: drivers/serial/kgdboc.c
+F: include/linux/kdb.h
F: include/linux/kgdb.h
-F: kernel/kgdb.c
+F: kernel/debug/
KMEMCHECK
MARVELL SOC MMC/SD/SDIO CONTROLLER DRIVER
-S: Maintained
+S: Odd Fixes
+F: drivers/mmc/host/mvsdio.*
MARVELL YUKON / SYSKONNECT DRIVER
W: http://trac.neterion.com/cgi-bin/trac.cgi/wiki/Linux?Anonymous
W: http://trac.neterion.com/cgi-bin/trac.cgi/wiki/X3100Linux?Anonymous
F: net/wireless/
F: include/net/ieee80211*
F: include/linux/wireless.h
+F: include/linux/iw_handler.h
F: drivers/net/wireless/
NETWORKING DRIVERS
S: Maintained
+F: arch/*/include/asm/oprofile*.h
F: arch/*/oprofile/
F: drivers/oprofile/
F: include/linux/oprofile.h
S: Supported
-F: kernel/perf_event.c
+F: kernel/perf_event*.c
F: include/linux/perf_event.h
-F: arch/*/kernel/perf_event.c
-F: arch/*/kernel/*/perf_event.c
-F: arch/*/kernel/*/*/perf_event.c
+F: arch/*/kernel/perf_event*.c
+F: arch/*/kernel/*/perf_event*.c
+F: arch/*/kernel/*/*/perf_event*.c
F: arch/*/include/asm/perf_event.h
-F: arch/*/lib/perf_event.c
+F: arch/*/lib/perf_event*.c
F: arch/*/kernel/perf_callchain.c
F: tools/perf/
F: Documentation/scsi/LICENSE.qla2xxx
F: drivers/scsi/qla2xxx/
+QLOGIC QLA4XXX iSCSI DRIVER
+S: Supported
+F: drivers/scsi/qla4xxx/
+
QLOGIC QLA3XXX NETWORK DRIVER
QLOGIC QLCNIC (1/10)Gb ETHERNET DRIVER
S: Supported
F: Documentation/rfkill.txt
F: net/rfkill/
+RICOH SMARTMEDIA/XD DRIVER
+S: Maintained
+F: drivers/mtd/nand/r822.c
+F: drivers/mtd/nand/r822.h
+
RISCOM8 DRIVER
S: Orphan
F: Documentation/serial/riscom8.txt
S: Supported
F: arch/s390/
F: drivers/s390/
+F: fs/partitions/ibm.c
+F: Documentation/s390/
+F: Documentation/DocBook/s390*
S390 NETWORK DRIVERS
S: Maintained
F: drivers/mmc/host/sdhci-s3c.c
+SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) ST SPEAR DRIVER
+S: Maintained
+F: drivers/mmc/host/sdhci-spear.c
+
SECURITY SUBSYSTEM
SMC91x ETHERNET DRIVER
-S: Maintained
+S: Odd Fixes
F: drivers/net/smc91x.*
SMSC47B397 HARDWARE MONITOR DRIVER
F: drivers/serial/sunzilog.c
F: drivers/serial/sunzilog.h
+SPEAR PLATFORM SUPPORT
+W: http://www.st.com/spear
+S: Maintained
+F: arch/arm/plat-spear/
+
+SPEAR3XX MACHINE SUPPORT
+W: http://www.st.com/spear
+S: Maintained
+F: arch/arm/mach-spear3xx/
+
+SPEAR6XX MACHINE SUPPORT
+W: http://www.st.com/spear
+S: Maintained
+F: arch/arm/mach-spear6xx/
+
+SPEAR CLOCK FRAMEWORK SUPPORT
+W: http://www.st.com/spear
+S: Maintained
+F: arch/arm/mach-spear*/clock.c
+F: arch/arm/mach-spear*/include/mach/clkdev.h
+F: arch/arm/plat-spear/clock.c
+F: arch/arm/plat-spear/include/plat/clock.h and clkdev.h
+
+SPEAR PAD MULTIPLEXING SUPPORT
+W: http://www.st.com/spear
+S: Maintained
+F: arch/arm/plat-spear/include/plat/padmux.h
+F: arch/arm/plat-spear/padmux.c
+F: arch/arm/mach-spear*/spear*xx.c
+F: arch/arm/mach-spear*/include/mach/generic.h
+F: arch/arm/mach-spear3xx/spear3*0.c
+F: arch/arm/mach-spear3xx/spear3*0_evb.c
+F: arch/arm/mach-spear6xx/spear600.c
+F: arch/arm/mach-spear6xx/spear600_evb.c
+
SPECIALIX IO8+ MULTIPORT SERIAL CARD DRIVER
S: Supported
T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
-W: http://linux-uvc.berlios.de
+W: http://www.ideasonboard.org/uvc/
S: Maintained
F: drivers/media/video/uvc/
#define TIF_NOTSC 16 /* TSC is not accessible in userland */
#define TIF_IA32 17 /* 32bit process */
#define TIF_FORK 18 /* ret_from_fork */
-#define TIF_MEMDIE 20
+#define TIF_MEMDIE 20 /* is terminating due to OOM killer */
#define TIF_DEBUG 21 /* uses debug registers */
#define TIF_IO_BITMAP 22 /* uses I/O bitmap */
#define TIF_FREEZE 23 /* is freezing for suspend */
#define TIF_FORCED_TF 24 /* true if TF in eflags artificially */
-#define TIF_DEBUGCTLMSR 25 /* uses thread_struct.debugctlmsr */
-#define TIF_DS_AREA_MSR 26 /* uses thread_struct.ds_area_msr */
+#define TIF_BLOCKSTEP 25 /* set when we want DEBUGCTLMSR_BTF */
#define TIF_LAZY_MMU_UPDATES 27 /* task is updating the mmu lazily */
#define TIF_SYSCALL_TRACEPOINT 28 /* syscall tracepoint instrumentation */
#define _TIF_IO_BITMAP (1 << TIF_IO_BITMAP)
#define _TIF_FREEZE (1 << TIF_FREEZE)
#define _TIF_FORCED_TF (1 << TIF_FORCED_TF)
-#define _TIF_DEBUGCTLMSR (1 << TIF_DEBUGCTLMSR)
-#define _TIF_DS_AREA_MSR (1 << TIF_DS_AREA_MSR)
+#define _TIF_BLOCKSTEP (1 << TIF_BLOCKSTEP)
#define _TIF_LAZY_MMU_UPDATES (1 << TIF_LAZY_MMU_UPDATES)
#define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT)
/* flags to check in __switch_to() */
#define _TIF_WORK_CTXSW \
- (_TIF_IO_BITMAP|_TIF_DEBUGCTLMSR|_TIF_DS_AREA_MSR|_TIF_NOTSC)
+ (_TIF_IO_BITMAP|_TIF_NOTSC|_TIF_BLOCKSTEP)
#define _TIF_WORK_CTXSW_PREV (_TIF_WORK_CTXSW|_TIF_USER_RETURN_NOTIFY)
#define _TIF_WORK_CTXSW_NEXT (_TIF_WORK_CTXSW|_TIF_DEBUG)
#define TS_USEDFPU 0x0001 /* FPU was used by this task
this quantum (SMP) */
#define TS_COMPAT 0x0002 /* 32bit syscall active (64BIT)*/
- #define TS_POLLING 0x0004 /* true if in idle loop
- and not sleeping */
+ #define TS_POLLING 0x0004 /* idle task polling need_resched,
+ skip sending interrupt */
#define TS_RESTORE_SIGMASK 0x0008 /* restore signal mask in do_signal() */
-#define TS_XSAVE 0x0010 /* Use xsave/xrstor */
#define tsk_is_polling(t) (task_thread_info(t)->status & TS_POLLING)
#define CPUID5_ECX_EXTENSIONS_SUPPORTED (0x1)
#define CPUID5_ECX_INTERRUPT_BREAK (0x2)
static unsigned long power_saving_mwait_eax;
+
+static unsigned char tsc_detected_unstable;
+static unsigned char tsc_marked_unstable;
+
static void power_saving_mwait_init(void)
{
unsigned int eax, ebx, ecx, edx;
/*FALL THROUGH*/
default:
- /* TSC could halt in idle, so notify users */
- mark_tsc_unstable("TSC halts in idle");
+ /* TSC could halt in idle */
+ tsc_detected_unstable = 1;
}
#endif
}
do_sleep = 0;
- current_thread_info()->status &= ~TS_POLLING;
- /*
- * TS_POLLING-cleared state must be visible before we test
- * NEED_RESCHED:
- */
- smp_mb();
-
expire_time = jiffies + HZ * (100 - idle_pct) / 100;
while (!need_resched()) {
+ if (tsc_detected_unstable && !tsc_marked_unstable) {
+ /* TSC could halt in idle, so notify users */
+ mark_tsc_unstable("TSC halts in idle");
+ tsc_marked_unstable = 1;
+ }
local_irq_disable();
cpu = smp_processor_id();
clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER,
}
}
- current_thread_info()->status |= TS_POLLING;
-
/*
* current sched_rt has threshold for rt task running time.
* When a rt task uses 95% CPU time, the rt thread will be
"max_cstate: C%d\n"
"maximum allowed latency: %d usec\n",
pr->power.state ? pr->power.state - pr->power.states : 0,
- max_cstate, pm_qos_requirement(PM_QOS_CPU_DMA_LATENCY));
+ max_cstate, pm_qos_request(PM_QOS_CPU_DMA_LATENCY));
seq_puts(seq, "states:\n");
break;
}
- if (pr->power.states[i].promotion.state)
- seq_printf(seq, "promotion[C%zd] ",
- (pr->power.states[i].promotion.state -
- pr->power.states));
- else
- seq_puts(seq, "promotion[--] ");
+ seq_puts(seq, "promotion[--] ");
- if (pr->power.states[i].demotion.state)
- seq_printf(seq, "demotion[C%zd] ",
- (pr->power.states[i].demotion.state -
- pr->power.states));
- else
- seq_puts(seq, "demotion[--] ");
+ seq_puts(seq, "demotion[--] ");
seq_printf(seq, "latency[%03d] usage[%08d] duration[%020llu]\n",
pr->power.states[i].latency,
struct acpi_processor *pr;
struct acpi_processor_cx *cx = cpuidle_get_statedata(state);
ktime_t kt1, kt2;
+ s64 idle_time_ns;
s64 idle_time;
s64 sleep_ticks = 0;
return(acpi_idle_enter_c1(dev, state));
local_irq_disable();
+
if (cx->entry_method != ACPI_CSTATE_FFH) {
current_thread_info()->status &= ~TS_POLLING;
/*
* NEED_RESCHED:
*/
smp_mb();
- }
- if (unlikely(need_resched())) {
- current_thread_info()->status |= TS_POLLING;
- local_irq_enable();
- return 0;
+ if (unlikely(need_resched())) {
+ current_thread_info()->status |= TS_POLLING;
+ local_irq_enable();
+ return 0;
+ }
}
/*
sched_clock_idle_sleep_event();
acpi_idle_do_entry(cx);
kt2 = ktime_get_real();
- idle_time = ktime_to_us(ktime_sub(kt2, kt1));
+ idle_time_ns = ktime_to_ns(ktime_sub(kt2, kt1));
+ idle_time = idle_time_ns;
+ do_div(idle_time, NSEC_PER_USEC);
sleep_ticks = us_to_pm_timer_ticks(idle_time);
/* Tell the scheduler how much we idled: */
- sched_clock_idle_wakeup_event(sleep_ticks*PM_TIMER_TICK_NS);
+ sched_clock_idle_wakeup_event(idle_time_ns);
local_irq_enable();
- current_thread_info()->status |= TS_POLLING;
+ if (cx->entry_method != ACPI_CSTATE_FFH)
+ current_thread_info()->status |= TS_POLLING;
cx->usage++;
struct acpi_processor *pr;
struct acpi_processor_cx *cx = cpuidle_get_statedata(state);
ktime_t kt1, kt2;
+ s64 idle_time_ns;
s64 idle_time;
s64 sleep_ticks = 0;
}
local_irq_disable();
+
if (cx->entry_method != ACPI_CSTATE_FFH) {
current_thread_info()->status &= ~TS_POLLING;
/*
* NEED_RESCHED:
*/
smp_mb();
- }
- if (unlikely(need_resched())) {
- current_thread_info()->status |= TS_POLLING;
- local_irq_enable();
- return 0;
+ if (unlikely(need_resched())) {
+ current_thread_info()->status |= TS_POLLING;
+ local_irq_enable();
+ return 0;
+ }
}
acpi_unlazy_tlb(smp_processor_id());
spin_unlock(&c3_lock);
}
kt2 = ktime_get_real();
- idle_time = ktime_to_us(ktime_sub(kt2, kt1));
+ idle_time_ns = ktime_to_us(ktime_sub(kt2, kt1));
+ idle_time = idle_time_ns;
+ do_div(idle_time, NSEC_PER_USEC);
sleep_ticks = us_to_pm_timer_ticks(idle_time);
/* Tell the scheduler how much we idled: */
- sched_clock_idle_wakeup_event(sleep_ticks*PM_TIMER_TICK_NS);
+ sched_clock_idle_wakeup_event(idle_time_ns);
local_irq_enable();
- current_thread_info()->status |= TS_POLLING;
+ if (cx->entry_method != ACPI_CSTATE_FFH)
+ current_thread_info()->status |= TS_POLLING;
cx->usage++;
projects / J-linux.git / commitdiff