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Will Schmidt b791072ba3 [POWERPC] hvc_console: Polling mode timer backoff 
Add a back-off mechanism to hvc_console's polling logic.   This change
drops the timers/second ratio from ~90 to ~1/2 while the console is
idle.
This change is most noticeable when watching /proc/timer_stats output.

This only affects when the hvc_console is running in poll mode, i.e.
power4 and cell systems.

I've tested on Power4, Michael Ellerman has both contributed to the
patch and tested on cell.

Signed-off-by: Will Schmidt <will_schmidt@vnet.ibm.com>
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
 		2007-04-24 21:31:43 +10:00
..
acorn
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acpi Revert "ACPI: parse 2nd MADT by default" 2007-03-30 14:16:10 -04:00
amba
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ata [POWERPC] Rename get_property to of_get_property: drivers 2007-04-13 03:55:19 +10:00
atm [PATCH] zatm __init abuse 2007-03-14 15:27:49 -07:00
auxdisplay
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base [PATCH] PM: use kobject_name() to access kobject names 2007-04-11 15:39:39 -07:00
block [PATCH] cciss: add init of drv->cylinders back to cciss_geometry_inquiry 2007-04-04 21:12:47 -07:00
bluetooth
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cdrom
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char [POWERPC] hvc_console: Polling mode timer backoff 2007-04-24 21:31:43 +10:00
clocksource [PATCH] correct slow acpi_pm rating 2007-03-27 09:05:15 -07:00
connector
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cpufreq [PATCH] Fix maxcpus=1 trigerring BUG() in cpufreq 2007-03-27 08:55:56 -07:00
crypto
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dio
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dma [PATCH] rm pointless dmaengine exports 2007-03-16 19:25:03 -07:00
edac
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eisa [PATCH] drivers/eisa/pci_eisa.c:pci_eisa_init() should be init 2007-03-27 09:05:15 -07:00
fc4
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firmware
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hid HID: Do not discard truncated input reports 2007-04-05 16:06:30 +02:00
hwmon [POWERPC] Rename get_property to of_get_property: drivers 2007-04-13 03:55:19 +10:00
i2c i2c/ds1374: Check workqueue creation status 2007-03-22 19:49:01 +01:00
ide [POWERPC] Partially revert "Add correct interrupt property for pegasos ide" 2007-04-24 13:57:12 +10:00
ieee1394 ieee1394: change deprecation status of dv1394 2007-04-09 18:52:27 +02:00
infiniband [POWERPC] Rename get_property to of_get_property: drivers 2007-04-13 03:55:19 +10:00
input [PATCH] Input: ucb1400 - set up driver's name to show in sysfs 2007-04-10 17:26:33 -07:00
isdn [PATCH] drivers/isdn/gigaset: mark some static data as const (v2) 2007-03-29 08:22:25 -07:00
kvm KVM: always reload segment selectors 2007-03-27 17:55:48 +02:00
leds
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macintosh [POWERPC] Rename get_property to of_get_property: drivers 2007-04-13 03:55:19 +10:00
mca
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md [PATCH] md: avoid a deadlock when removing a device from an md array via sysfs 2007-04-04 21:12:47 -07:00
media V4L/DVB (5496): Pluto2: fix incorrect TSCR register setting 2007-04-02 11:03:05 -03:00
message Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6 2007-03-27 10:06:30 -07:00
mfd [PATCH] drivers/mfd/sm501.c: fix an off-by-one 2007-04-02 10:06:08 -07:00
misc asus-laptop: make code static 2007-03-09 21:06:40 -05:00
mmc [ARM] 4256/1: i.MX/MX1 SDHC fix/workaround of SD card recognition problems 2007-03-12 16:49:37 +00:00
mtd [POWERPC] Rename get_property to of_get_property: drivers 2007-04-13 03:55:19 +10:00
net [POWERPC] Rename get_property to of_get_property: drivers 2007-04-13 03:55:19 +10:00
nubus
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oprofile [PATCH] oprofile: fix potential deadlock on oprofilefs_lock 2007-03-28 13:58:02 -07:00
parisc
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parport
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pci [POWERPC] Rename get_property to of_get_property: drivers 2007-04-13 03:55:19 +10:00
pcmcia [PATCH] omap_cf: oops-on-suspend fix 2007-04-08 19:47:55 -07:00
pnp [PATCH] Correctly report PnP 64bit resources 2007-04-02 10:06:08 -07:00
ps3 [PATCH] C99 initializers, proper use of const in drivers/ps3 2007-03-14 15:27:50 -07:00
rapidio
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rtc [PATCH] rtc-cmos lockdep fix, irq updates 2007-04-02 10:06:09 -07:00
s390 [S390] cio: Fix handling of interrupt for csch(). 2007-04-04 14:37:39 +02:00
sbus
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scsi [POWERPC] Rename get_property to of_get_property: drivers 2007-04-13 03:55:19 +10:00
serial [POWERPC] Rename get_property to of_get_property: drivers 2007-04-13 03:55:19 +10:00
sh
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sn
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spi [PATCH] drivers/spi/: fix section mismatches 2007-03-27 09:05:15 -07:00
tc [PATCH] Fix build error on zs serial driver 2007-04-04 21:12:47 -07:00
telephony
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usb USB: Nikon D80 unusual device patch 2007-04-11 10:44:15 -07:00
video [POWERPC] Rename get_property to of_get_property: drivers 2007-04-13 03:55:19 +10:00
w1
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zorro
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Kconfig
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Makefile
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