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linux-sg2042/drivers
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Shannon Nelson 7589670f37 DCA: Add Direct Cache Access driver 
Direct Cache Access (DCA) is a method for warming the CPU cache before data
is used, with the intent of lessening the impact of cache misses.  This
patch adds a manager and interface for matching up client requests for DCA
services with devices that offer DCA services.

In order to use DCA, a module must do bus writes with the appropriate tag
bits set to trigger a cache read for a specific CPU.  However, different
CPUs and chipsets can require different sets of tag bits, and the methods
for determining the correct bits may be simple hardcoding or may be a
hardware specific magic incantation.  This interface is a way for DCA
clients to find the correct tag bits for the targeted CPU without needing
to know the specifics.

    [Dave Miller] use DEFINE_SPINLOCK()

Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2007-10-16 09:43:09 -07:00
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acorn/char
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acpi more trivial signedness fixes in drivers 2007-10-14 12:41:52 -07:00
amba Driver core: change add_uevent_var to use a struct 2007-10-12 14:51:01 -07:00
ata docbook: fix libata content 2007-10-15 17:56:36 -07:00
atm more trivial signedness fixes in drivers 2007-10-14 12:41:52 -07:00
auxdisplay cfag12864b fix 2007-08-22 19:52:46 -07:00
base mm: add node states sysfs class attributeS 2007-10-16 09:43:03 -07:00
block deny partial write for loop dev fd 2007-10-16 09:42:55 -07:00
bluetooth [Bluetooth] Add missing stat.byte_rx counter modification 2007-09-09 08:39:27 +02:00
cdrom [POWERPC] iSeries: Move detection of virtual cdroms 2007-10-11 20:40:47 +10:00
char Memoryless nodes: Uncached allocator updates 2007-10-16 09:42:58 -07:00
clocksource
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connector [NET]: make netlink user -> kernel interface synchronious 2007-10-10 21:15:29 -07:00
cpufreq Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6 2007-10-12 15:49:37 -07:00
crypto [CRYPTO] sha: Add header file for SHA definitions 2007-10-10 16:55:50 -07:00
dca DCA: Add Direct Cache Access driver 2007-10-16 09:43:09 -07:00
dio
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dma I/OAT: Add support for MSI and MSI-X 2007-10-16 09:43:09 -07:00
edac Drivers: clean up direct setting of the name of a kset 2007-10-12 14:51:02 -07:00
eisa signedness: module_param_array nump argument 2007-10-14 12:41:52 -07:00
fc4 Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2007-10-15 08:19:33 -07:00
firewire fw-cdev __user annotations 2007-10-14 12:41:51 -07:00
firmware Driver core: rename ktype_edd and ktype_efivar 2007-10-12 14:51:12 -07:00
hid HID: fix HIDIOCGRDESC memory access in hidraw 2007-10-15 08:12:00 -07:00
hwmon Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2007-10-15 13:41:39 -07:00
i2c Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm 2007-10-15 16:08:50 -07:00
ide alim15x3: remove redundant m5229_revision check 2007-10-13 17:47:53 +02:00
ieee1394 Driver core: change add_uevent_var to use a struct 2007-10-12 14:51:01 -07:00
infiniband IB/ipoib: Verify address handle validity on send 2007-10-15 14:20:45 -04:00
input Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm 2007-10-15 16:08:50 -07:00
isdn [ISDN]: Fix compile with CONFIG_ISDN_X25 disabled. 2007-10-15 12:52:20 -07:00
kvm sched: guest CPU accounting: maintain guest state in KVM 2007-10-15 17:00:19 +02:00
leds [ARM] 4576/1: CM-X270 machine support 2007-10-15 18:53:57 +01:00
lguest fix modules oopsing in lguest guests 2007-09-25 08:51:04 -07:00
macintosh Merge master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 2007-10-12 21:27:47 -04:00
mca
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md dm: emc_endio returns void 2007-10-13 09:41:03 -07:00
media signedness: module_param_array nump argument 2007-10-14 12:41:52 -07:00
message docbook: fix kernel-api content 2007-10-15 17:56:36 -07:00
mfd
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misc Map volume and brightness events on thinkpads 2007-10-15 13:54:40 -07:00
mmc Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm 2007-10-15 16:08:50 -07:00
mtd Reinstate lost flush_ioremap_region() fix to pxa2xx-flash driver 2007-10-15 12:55:20 -07:00
net Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm 2007-10-15 16:08:50 -07:00
nubus
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of
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oprofile
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parisc [NET]: Make the device list and device lookups per namespace. 2007-10-10 16:49:10 -07:00
parport
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pci Get rid of unused variable warning in drivers/pci/hotplug/pci_hotplug_core.c 2007-10-15 09:07:58 -07:00
pcmcia pcmcia: use DMA_MASK_NONE for the default for all pcmcia devices 2007-10-16 09:42:50 -07:00
pnp drivers/firmware: const-ify DMI API and internals 2007-10-09 20:22:20 -04:00
power Driver core: change add_uevent_var to use a struct 2007-10-12 14:51:01 -07:00
ps3
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rapidio
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rtc rtc: rtc-sh: Support 4-digit year on SH7705/SH7710/SH7712. 2007-09-21 11:57:47 +09:00
s390 Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2007-10-15 08:19:33 -07:00
sbus
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scsi scsi/gdth: fix crash in gdth_timeout if no gdth controllers found 2007-10-15 12:46:16 -07:00
serial tty: bring the old cris driver back somewhere into the realm of new tty buffering 2007-10-16 09:43:04 -07:00
sh sh: Add maple bus support for the SEGA Dreamcast. 2007-09-21 15:55:55 +09:00
sn
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spi Driver core: change add_uevent_var to use a struct 2007-10-12 14:51:01 -07:00
ssb missing include in ssb 2007-10-14 08:53:33 -07:00
tc
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telephony
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uio
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usb docbook: fix usb content 2007-10-15 17:56:36 -07:00
video Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm 2007-10-15 16:08:50 -07:00
w1 Driver core: change add_uevent_var to use a struct 2007-10-12 14:51:01 -07:00
xen
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zorro zorro: Make sysfs config attribute read-only 2007-08-22 19:52:45 -07:00
Kconfig DCA: Add Direct Cache Access driver 2007-10-16 09:43:09 -07:00
Makefile DCA: Add Direct Cache Access driver 2007-10-16 09:43:09 -07:00