sfrench/cifs-2.6.git
18 years ago[PATCH] bcm43xx: fix some gpio register trashing (hopefully :D)
Michael Buesch [Sat, 18 Mar 2006 20:28:46 +0000 (21:28 +0100)]
[PATCH] bcm43xx: fix some gpio register trashing (hopefully :D)

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: remove check for mmio length, as it differs among platforms. (especi...
Michael Buesch [Sat, 18 Mar 2006 19:19:12 +0000 (20:19 +0100)]
[PATCH] bcm43xx: remove check for mmio length, as it differs among platforms. (especially embedded)

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: properly mask txctl1 before writing it to hardware.
Michael Buesch [Wed, 15 Mar 2006 17:13:53 +0000 (18:13 +0100)]
[PATCH] bcm43xx: properly mask txctl1 before writing it to hardware.

This should not make a difference, but be careful to not trash the register.

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: Do boardflags workarounds for specific boards.
Michael Buesch [Wed, 15 Mar 2006 15:31:45 +0000 (16:31 +0100)]
[PATCH] bcm43xx: Do boardflags workarounds for specific boards.

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: Remove the workaround in dummy_transmission,
Michael Buesch [Tue, 14 Mar 2006 17:23:43 +0000 (18:23 +0100)]
[PATCH] bcm43xx: Remove the workaround in dummy_transmission,

as it causes more trouble than it solves

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: Fix crash on ifdown, by being careful in pio/dma freeing.
Michael Buesch [Tue, 14 Mar 2006 15:05:26 +0000 (16:05 +0100)]
[PATCH] bcm43xx: Fix crash on ifdown, by being careful in pio/dma freeing.

This bug was caused by the packing of the bcm43xx_dma and bcm43xx_pio
structures into a union.

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: reduce the size of bcm43xx_private by removing unneeded members.
Michael Buesch [Mon, 13 Mar 2006 18:27:34 +0000 (19:27 +0100)]
[PATCH] bcm43xx: reduce the size of bcm43xx_private by removing unneeded members.

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: add functions bcm43xx_dma_read/write, bcm43xx_dma_tx_suspend/resume.
Michael Buesch [Mon, 13 Mar 2006 14:54:56 +0000 (15:54 +0100)]
[PATCH] bcm43xx: add functions bcm43xx_dma_read/write, bcm43xx_dma_tx_suspend/resume.

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: receive TX status on MMIO or DMA unconditionally regarding the 80211...
Michael Buesch [Mon, 13 Mar 2006 14:20:05 +0000 (15:20 +0100)]
[PATCH] bcm43xx: receive TX status on MMIO or DMA unconditionally regarding the 80211 core rev.

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: fix some stuff, add a few missing mmiowb(), remove dead code.
Michael Buesch [Sun, 12 Mar 2006 18:44:29 +0000 (19:44 +0100)]
[PATCH] bcm43xx: fix some stuff, add a few missing mmiowb(), remove dead code.

This may workaround the XMIT ERRORs some people are getting.

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: Remove the mmio access printing facility overhead.
Michael Buesch [Sat, 11 Mar 2006 12:43:06 +0000 (13:43 +0100)]
[PATCH] bcm43xx: Remove the mmio access printing facility overhead.

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: Abstract the locking mechanism.
Michael Buesch [Sat, 11 Mar 2006 12:39:14 +0000 (13:39 +0100)]
[PATCH] bcm43xx: Abstract the locking mechanism.

This is the starting point to make the driver out-of-order-MMIO-stores safe.
There are more mmiowb() needed.

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: Set both, the DMAmask and the coherent DMAmask.
Michael Buesch [Sat, 11 Mar 2006 12:15:02 +0000 (13:15 +0100)]
[PATCH] bcm43xx: Set both, the DMAmask and the coherent DMAmask.

This has a potential to fix the >1G bug. But I can not test that, yet.

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: fix DMA TX skb freeing in case of fragmented packets.
Pete Zaitcev [Tue, 7 Mar 2006 00:37:51 +0000 (01:37 +0100)]
[PATCH] bcm43xx: fix DMA TX skb freeing in case of fragmented packets.

It seems to me that the today's wireless-2.6 git contains bcm43xx which
does not free txb's correctly, if I understand it right.

Consider a situation where a txb with two skb's is sent down.
The dma_tx_fragment will save the pointer to meta->txb of the first
fragment. If fragments are freed in order, ieee80211_txb_free frees both
skb's when the first fragment is processed. This may result in reuse
of the second skb's memory.

This danger is rather remote, but it seems to me that the patch
below not only fixes the problem, but also makes the code simpler,
which is good, right?

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: Add sysfs attributes for device specific tunables.
Michael Buesch [Tue, 28 Feb 2006 14:32:19 +0000 (15:32 +0100)]
[PATCH] bcm43xx: Add sysfs attributes for device specific tunables.

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: Move TX/RX related functions to its own file. Add basic RTS/CTS...
Michael Buesch [Thu, 23 Feb 2006 20:15:39 +0000 (21:15 +0100)]
[PATCH] bcm43xx: Move TX/RX related functions to its own file. Add basic RTS/CTS code.

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: add assert(bcm->initialized) to periodic_tasks_setup().
Michael Buesch [Tue, 21 Feb 2006 17:19:59 +0000 (18:19 +0100)]
[PATCH] bcm43xx: add assert(bcm->initialized) to periodic_tasks_setup().

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: move initialized = 1 to the end of init_board.
Michael Buesch [Tue, 21 Feb 2006 17:08:55 +0000 (18:08 +0100)]
[PATCH] bcm43xx: move initialized = 1 to the end of init_board.

Note that the periodic work has to be started with initialized==1

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: Workaround init_board vs IRQ race.
Michael Buesch [Tue, 21 Feb 2006 16:58:18 +0000 (17:58 +0100)]
[PATCH] bcm43xx: Workaround init_board vs IRQ race.

The proper fix for this is to move IRQ enabling to the end of
init_board. But this is nontrivial and needs to be done with care.
Stay with this cheap workaround for now.

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: Fix Kconfig typo (transfer mode default)
Michael Buesch [Mon, 20 Feb 2006 21:48:55 +0000 (22:48 +0100)]
[PATCH] bcm43xx: Fix Kconfig typo (transfer mode default)

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: remove old unused struct.
Michael Buesch [Sun, 19 Feb 2006 21:25:09 +0000 (22:25 +0100)]
[PATCH] bcm43xx: remove old unused struct.

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: split the channel helper functions, so that they can be used without...
Michael Buesch [Sun, 19 Feb 2006 21:08:48 +0000 (22:08 +0100)]
[PATCH] bcm43xx: split the channel helper functions, so that they can be used without a valid running core.

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: make bcm43xx_sprom_crc() static.
Michael Buesch [Sun, 19 Feb 2006 13:12:22 +0000 (14:12 +0100)]
[PATCH] bcm43xx: make bcm43xx_sprom_crc() static.

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: Move sprom lowlevel reading/writing to its own functions.
Michael Buesch [Sun, 19 Feb 2006 13:09:20 +0000 (14:09 +0100)]
[PATCH] bcm43xx: Move sprom lowlevel reading/writing to its own functions.

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: Code cleanups. This removes various "inline" statements and reduces...
Michael Buesch [Sun, 12 Feb 2006 23:11:07 +0000 (00:11 +0100)]
[PATCH] bcm43xx: Code cleanups. This removes various "inline" statements and reduces codesize.

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: rewrite and simplify the periodic task handling.
Michael Buesch [Sun, 12 Feb 2006 21:40:39 +0000 (22:40 +0100)]
[PATCH] bcm43xx: rewrite and simplify the periodic task handling.

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: fix LED code.
Michael Buesch [Sun, 12 Feb 2006 19:25:55 +0000 (20:25 +0100)]
[PATCH] bcm43xx: fix LED code.

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: update README
Michael Buesch [Sun, 12 Feb 2006 16:15:06 +0000 (17:15 +0100)]
[PATCH] bcm43xx: update README

Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] Apple Airport: Add Kconfig note that the bcm43xx driver has to be used for...
Michael Buesch [Sun, 12 Feb 2006 15:55:06 +0000 (16:55 +0100)]
[PATCH] Apple Airport: Add Kconfig note that the bcm43xx driver has to be used for Airport Extreme cards.

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: add a note that not all devices support PIO.
Michael Buesch [Sun, 12 Feb 2006 15:52:10 +0000 (16:52 +0100)]
[PATCH] bcm43xx: add a note that not all devices support PIO.

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: Partially fix PIO code. Add Kconfig option for PIO or DMA mode ...
Michael Buesch [Sun, 12 Feb 2006 15:47:44 +0000 (16:47 +0100)]
[PATCH] bcm43xx: Partially fix PIO code. Add Kconfig option for PIO or DMA mode (or both).

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: remove WX debugging.
Michael Buesch [Wed, 8 Feb 2006 17:04:02 +0000 (18:04 +0100)]
[PATCH] bcm43xx: remove WX debugging.

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: fix compiletime warning (phy_xmitpower)
Michael Buesch [Wed, 8 Feb 2006 17:00:30 +0000 (18:00 +0100)]
[PATCH] bcm43xx: fix compiletime warning (phy_xmitpower)

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: heavily increase mac_suspend timeout.
Michael Buesch [Wed, 8 Feb 2006 16:55:55 +0000 (17:55 +0100)]
[PATCH] bcm43xx: heavily increase mac_suspend timeout.

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: enable SPROM writing.
Michael Buesch [Wed, 8 Feb 2006 16:36:46 +0000 (17:36 +0100)]
[PATCH] bcm43xx: enable SPROM writing.

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: fix txpower reporting in WE.
Michael Buesch [Sun, 5 Feb 2006 14:28:20 +0000 (15:28 +0100)]
[PATCH] bcm43xx: fix txpower reporting in WE.

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] Sync bcm43xx_phy_initb6() with specs
Danny van Dyk [Tue, 31 Jan 2006 23:43:05 +0000 (00:43 +0100)]
[PATCH] Sync bcm43xx_phy_initb6() with specs

Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: Wireless Ext update
Michael Buesch [Thu, 2 Feb 2006 18:49:15 +0000 (19:49 +0100)]
[PATCH] bcm43xx: Wireless Ext update

Wireless Ext update:
update we_version_source
set enc_capa

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: basic ethtool support
Michael Buesch [Thu, 2 Feb 2006 18:11:08 +0000 (19:11 +0100)]
[PATCH] bcm43xx: basic ethtool support

This patch contains the beginnings of ethtool support for bcm43xx.

It only implements get_drvinfo and get_link, but that's enough for
ifplugd to use ethtool to know whether we're associated or not and then
start or stop dhcp as necessary.

Signed-off-by: Jason Lunz <lunz@falooley.org>
Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: Remove function bcm43xx_channel_is_allowed()
Michael Buesch [Thu, 2 Feb 2006 17:43:25 +0000 (18:43 +0100)]
[PATCH] bcm43xx: Remove function bcm43xx_channel_is_allowed()

Geographical restriction should become part of the 80211 stack,
so every driver does not have to duplicate it.

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: Add more initvals sanity checks and error out, if one sanity check...
Michael Buesch [Wed, 1 Feb 2006 21:09:52 +0000 (22:09 +0100)]
[PATCH] bcm43xx: Add more initvals sanity checks and error out, if one sanity check fails.

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: Fix makefile. Remove all the "out-of-tree" stuff.
Michael Buesch [Tue, 31 Jan 2006 19:11:38 +0000 (20:11 +0100)]
[PATCH] bcm43xx: Fix makefile. Remove all the "out-of-tree" stuff.

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: add DEBUG Kconfig option. Also fix indention.
Michael Buesch [Mon, 30 Jan 2006 16:43:20 +0000 (17:43 +0100)]
[PATCH] bcm43xx: add DEBUG Kconfig option. Also fix indention.

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: remove redundant COPYING file.
Michael Buesch [Fri, 27 Jan 2006 16:39:44 +0000 (17:39 +0100)]
[PATCH] bcm43xx: remove redundant COPYING file.

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: Move README file to Documentation directory.
Michael Buesch [Fri, 27 Jan 2006 16:37:05 +0000 (17:37 +0100)]
[PATCH] bcm43xx: Move README file to Documentation directory.

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: remove linux version compatibility code.
Michael Buesch [Fri, 27 Jan 2006 16:33:15 +0000 (17:33 +0100)]
[PATCH] bcm43xx: remove linux version compatibility code.

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: sync with svn.berlios.de
Michael Buesch [Fri, 27 Jan 2006 16:26:20 +0000 (17:26 +0100)]
[PATCH] bcm43xx: sync with svn.berlios.de

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] bcm43xx: patch Kconfig and wireless/Makefile for import
John W. Linville [Mon, 23 Jan 2006 22:00:39 +0000 (17:00 -0500)]
[PATCH] bcm43xx: patch Kconfig and wireless/Makefile for import

Patch Kconfig and wireless/Makefile to merge bcm43xx 'properly'

Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[PATCH] wireless: import bcm43xx sources
John W. Linville [Mon, 23 Jan 2006 21:59:58 +0000 (16:59 -0500)]
[PATCH] wireless: import bcm43xx sources

Import the bcm43xx driver from the upstream sources here:

ftp://ftp.berlios.de/pub/bcm43xx/snapshots/bcm43xx/bcm43xx-20060123.tar.bz2

Signed-off-by: John W. Linville <linville@tuxdriver.com>
18 years ago[SPARC64]: Kill duplicate exports of string library functions.
David S. Miller [Sun, 26 Mar 2006 23:30:29 +0000 (15:30 -0800)]
[SPARC64]: Kill duplicate exports of string library functions.

Kbuild now points these out.

Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[SPARC64]: Update defconfig.
David S. Miller [Sun, 26 Mar 2006 22:58:40 +0000 (14:58 -0800)]
[SPARC64]: Update defconfig.

Signed-off-by: David S. Miller <davem@davemloft.net>
18 years ago[PATCH] one ipc/sem.c->mutex.c converstion too many..
Manfred Spraul [Sun, 26 Mar 2006 10:19:42 +0000 (12:19 +0200)]
[PATCH] one ipc/sem.c->mutex.c converstion too many..

Ingo's sem2mutex patch incorrectly replaced one reference to ipc/sem.c
with ipc/mutex.c in a comment.

Signed-off-by: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial
Linus Torvalds [Sun, 26 Mar 2006 17:41:18 +0000 (09:41 -0800)]
Merge git://git./linux/kernel/git/bunk/trivial

* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial:
  drivers/char/ftape/lowlevel/fdc-io.c: Correct a comment
  Kconfig help: MTD_JEDECPROBE already supports Intel
  Remove ugly debugging stuff
  do_mounts.c: Minor ROOT_DEV comment cleanup
  BUG_ON() Conversion in drivers/s390/block/dasd_devmap.c
  BUG_ON() Conversion in mm/mempool.c
  BUG_ON() Conversion in mm/memory.c
  BUG_ON() Conversion in kernel/fork.c
  BUG_ON() Conversion in ipc/sem.c
  BUG_ON() Conversion in fs/ext2/
  BUG_ON() Conversion in fs/hfs/
  BUG_ON() Conversion in fs/dcache.c
  BUG_ON() Conversion in fs/buffer.c
  BUG_ON() Conversion in input/serio/hp_sdc_mlc.c
  BUG_ON() Conversion in md/dm-table.c
  BUG_ON() Conversion in md/dm-path-selector.c
  BUG_ON() Conversion in drivers/isdn
  BUG_ON() Conversion in drivers/char
  BUG_ON() Conversion in drivers/mtd/

18 years agodrivers/char/ftape/lowlevel/fdc-io.c: Correct a comment
Bastien Roucaries [Sun, 26 Mar 2006 17:18:07 +0000 (19:18 +0200)]
drivers/char/ftape/lowlevel/fdc-io.c: Correct a comment

This patch correct a comment about cli().

Signed-off-by: Bastien Roucaries <roucaries.bastien@gmail.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
18 years agoKconfig help: MTD_JEDECPROBE already supports Intel
Adrian Bunk [Sun, 26 Mar 2006 17:15:03 +0000 (19:15 +0200)]
Kconfig help: MTD_JEDECPROBE already supports Intel

Intel chips are already supported.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: David Woodhouse <dwmw2@infradead.org>
18 years ago[PATCH] bitops: hweight() speedup
Akinobu Mita [Sun, 26 Mar 2006 09:40:00 +0000 (01:40 -0800)]
[PATCH] bitops: hweight() speedup

<linux@horizon.com> wrote:

This is an extremely well-known technique.  You can see a similar version that
uses a multiply for the last few steps at
http://graphics.stanford.edu/~seander/bithacks.html#CountBitsSetParallel whch
refers to "Software Optimization Guide for AMD Athlon 64 and Opteron
Processors"
http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/25112.PDF

It's section 8.6, "Efficient Implementation of Population-Count Function in
32-bit Mode", pages 179-180.

It uses the name that I am more familiar with, "popcount" (population count),
although "Hamming weight" also makes sense.

Anyway, the proof of correctness proceeds as follows:

b = a - ((a >> 1) & 0x55555555);
c = (b & 0x33333333) + ((b >> 2) & 0x33333333);
d = (c + (c >> 4)) & 0x0f0f0f0f;
#if SLOW_MULTIPLY
e = d + (d >> 8)
f = e + (e >> 16);
return f & 63;
#else
/* Useful if multiply takes at most 4 cycles */
return (d * 0x01010101) >> 24;
#endif

The input value a can be thought of as 32 1-bit fields each holding their own
hamming weight.  Now look at it as 16 2-bit fields.  Each 2-bit field a1..a0
has the value 2*a1 + a0.  This can be converted into the hamming weight of the
2-bit field a1+a0 by subtracting a1.

That's what the (a >> 1) & mask subtraction does.  Since there can be no
borrows, you can just do it all at once.

Enumerating the 4 possible cases:

0b00 = 0  ->  0 - 0 = 0
0b01 = 1  ->  1 - 0 = 1
0b10 = 2  ->  2 - 1 = 1
0b11 = 3  ->  3 - 1 = 2

The next step consists of breaking up b (made of 16 2-bir fields) into
even and odd halves and adding them into 4-bit fields.  Since the largest
possible sum is 2+2 = 4, which will not fit into a 4-bit field, the 2-bit
                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                          "which will not fit into a 2-bit field"

fields have to be masked before they are added.

After this point, the masking can be delayed.  Each 4-bit field holds a
population count from 0..4, taking at most 3 bits.  These numbers can be added
without overflowing a 4-bit field, so we can compute c + (c >> 4), and only
then mask off the unwanted bits.

This produces d, a number of 4 8-bit fields, each in the range 0..8.  From
this point, we can shift and add d multiple times without overflowing an 8-bit
field, and only do a final mask at the end.

The number to mask with has to be at least 63 (so that 32 on't be truncated),
but can also be 128 or 255.  The x86 has a special encoding for signed
immediate byte values -128..127, so the value of 255 is slower.  On other
processors, a special "sign extend byte" instruction might be faster.

On a processor with fast integer multiplies (Athlon but not P4), you can
reduce the final few serially dependent instructions to a single integer
multiply.  Consider d to be 3 8-bit values d3, d2, d1 and d0, each in the
range 0..8.  The multiply forms the partial products:

           d3 d2 d1 d0
        d3 d2 d1 d0
     d3 d2 d1 d0
+ d3 d2 d1 d0
----------------------
           e3 e2 e1 e0

Where e3 = d3 + d2 + d1 + d0.   e2, e1 and e0 obviously cannot generate
any carries.

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years agoRemove ugly debugging stuff
Artem B. Bityuckiy [Sun, 26 Mar 2006 16:58:31 +0000 (18:58 +0200)]
Remove ugly debugging stuff

Signed-off-by: Adrian Bunk <bunk@stusta.de>
18 years ago[PATCH] bitops: hweight() related cleanup
Akinobu Mita [Sun, 26 Mar 2006 09:39:56 +0000 (01:39 -0800)]
[PATCH] bitops: hweight() related cleanup

By defining generic hweight*() routines

- hweight64() will be defined on all architectures
- hweight_long() will use architecture optimized hweight32() or hweight64()

I found two possible cleanups by these reasons.

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: remove unused generic bitops in include/linux/bitops.h
Akinobu Mita [Sun, 26 Mar 2006 09:39:55 +0000 (01:39 -0800)]
[PATCH] bitops: remove unused generic bitops in include/linux/bitops.h

generic_{ffs,fls,fls64,hweight{64,32,16,8}}() were moved into
include/asm-generic/bitops.h.  So all architectures don't use them.

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: ntfs: remove generic_ffs()
Akinobu Mita [Sun, 26 Mar 2006 09:39:53 +0000 (01:39 -0800)]
[PATCH] bitops: ntfs: remove generic_ffs()

Now the only user who are using generic_ffs() is ntfs filesystem.  This patch
isolates generic_ffs() as ntfs_ffs() for ntfs.

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Cc: Anton Altaparmakov <aia21@cantab.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: ia64: make partial_page.bitmap an unsigned long
Akinobu Mita [Sun, 26 Mar 2006 09:39:53 +0000 (01:39 -0800)]
[PATCH] bitops: ia64: make partial_page.bitmap an unsigned long

The find_*_bit() routines are defined to work on a pointer to unsigned long.
But partial_page.bitmap is unsigned int and it is passed to find_*_bit() in
arch/ia64/ia32/sys_ia32.c.  So the compiler will print warnings.

This patch changes to unsigned long instead.

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: sh: make thread_info.flags an unsigned long
Akinobu Mita [Sun, 26 Mar 2006 09:39:51 +0000 (01:39 -0800)]
[PATCH] bitops: sh: make thread_info.flags an unsigned long

The test_bit() routines are defined to work on a pointer to unsigned long.
But thread_info.flags is __u32 (unsigned int) on sh and it is passed to flag
set/clear/test wrappers in include/linux/thread_info.h.  So the compiler will
print warnings.

This patch changes to unsigned long instead.

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: update include/asm-generic/bitops.h
Akinobu Mita [Sun, 26 Mar 2006 09:39:50 +0000 (01:39 -0800)]
[PATCH] bitops: update include/asm-generic/bitops.h

Currently include/asm-generic/bitops.h is not referenced from anywhere.  But
it will be the benefit of those who are trying to port Linux to another
architecture.

So update it by same manner

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: xtensa: use generic bitops
Akinobu Mita [Sun, 26 Mar 2006 09:39:43 +0000 (01:39 -0800)]
[PATCH] bitops: xtensa: use generic bitops

- remove {,test_and_}{set,clear,change}_bit()
- remove __{,test_and_}{set,clear,change}_bit() and test_bit()
- remove generic_fls64()
- remove find_{next,first}{,_zero}_bit()
- remove ext2_{set,clear,test,find_first_zero,find_next_zero}_bit()
- remove generic_hweight{32,16,8}()
- remove sched_find_first_bit()
- remove minix_{test,set,test_and_clear,test,find_first_zero}_bit()

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Cc: Chris Zankel <chris@zankel.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: x86_64: use generic bitops
Akinobu Mita [Sun, 26 Mar 2006 09:39:42 +0000 (01:39 -0800)]
[PATCH] bitops: x86_64: use generic bitops

- remove sched_find_first_bit()
- remove generic_hweight{64,32,16,8}()
- remove ext2_{set,clear,test,find_first_zero,find_next_zero}_bit()
- remove minix_{test,set,test_and_clear,test,find_first_zero}_bit()

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: v850: use generic bitops
Akinobu Mita [Sun, 26 Mar 2006 09:39:41 +0000 (01:39 -0800)]
[PATCH] bitops: v850: use generic bitops

- remove ffz()
- remove find_{next,first}{,_zero}_bit()
- remove generic_ffs()
- remove generic_fls()
- remove generic_fls64()
- remove __ffs()
- remove sched_find_first_bit()
- remove generic_hweight{32,16,8}()
- remove ext2_{set,clear,test,find_first_zero,find_next_zero}_bit()
- remove minix_{test,set,test_and_clear,test,find_first_zero}_bit()

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Cc: Miles Bader <uclinux-v850@lsi.nec.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: sparc64: use generic bitops
Akinobu Mita [Sun, 26 Mar 2006 09:39:40 +0000 (01:39 -0800)]
[PATCH] bitops: sparc64: use generic bitops

- remove __{,test_and_}{set,clear,change}_bit() and test_bit()
- remove ffz()
- remove __ffs()
- remove generic_fls()
- remove generic_fls64()
- remove sched_find_first_bit()
- remove ffs()

- unless defined(ULTRA_HAS_POPULATION_COUNT)

  - remove generic_hweight{64,32,16,8}()

- remove find_{next,first}{,_zero}_bit()
- remove ext2_{set,clear,test,find_first_zero,find_next_zero}_bit()
- remove minix_{test,set,test_and_clear,test,find_first_zero}_bit()

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: sparc: use generic bitops
Akinobu Mita [Sun, 26 Mar 2006 09:39:39 +0000 (01:39 -0800)]
[PATCH] bitops: sparc: use generic bitops

- remove __{,test_and_}{set,clear,change}_bit() and test_bit()
- remove ffz()
- remove __ffs()
- remove sched_find_first_bit()
- remove ffs()
- remove generic_fls()
- remove generic_fls64()
- remove generic_hweight{32,16,8}()
- remove find_{next,first}{,_zero}_bit()
- remove ext2_{set,clear,test,find_first_zero,find_next_zero}_bit()
- remove ext2_{set,clear}_bit_atomic()
- remove minix_{test,set,test_and_clear,test,find_first_zero}_bit()

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Cc: William Lee Irwin III <wli@holomorphy.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: sh64: use generic bitops
Akinobu Mita [Sun, 26 Mar 2006 09:39:37 +0000 (01:39 -0800)]
[PATCH] bitops: sh64: use generic bitops

- remove __{,test_and_}{set,clear,change}_bit() and test_bit()
- remove __ffs()
- remove find_{next,first}{,_zero}_bit()
- remove generic_hweight{32,16,8}()
- remove sched_find_first_bit()
- remove generic_ffs()
- remove ext2_{set,clear,test,find_first_zero,find_next_zero}_bit()
- remove ext2_{set,clear}_bit_atomic()
- remove minix_{test,set,test_and_clear,test,find_first_zero}_bit()
- remove generic_fls()
- remove generic_fls64()

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Richard Curnow <rc@rc0.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: sh: use generic bitops
Akinobu Mita [Sun, 26 Mar 2006 09:39:35 +0000 (01:39 -0800)]
[PATCH] bitops: sh: use generic bitops

- remove __{,test_and_}{set,clear,change}_bit() and test_bit()
- remove find_{next,first}{,_zero}_bit()
- remove generic_ffs()
- remove generic_hweight{32,16,8}()
- remove sched_find_first_bit()
- remove ext2_{set,clear,test,find_first_zero,find_next_zero}_bit()
- remove ext2_{set,clear}_bit_atomic()
- remove minix_{test,set,test_and_clear,test,find_first_zero}_bit()
- remove generic_fls()
- remove generic_fls64()

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: s390: use generic bitops
Akinobu Mita [Sun, 26 Mar 2006 09:39:34 +0000 (01:39 -0800)]
[PATCH] bitops: s390: use generic bitops

- remove generic_ffs()
- remove generic_fls()
- remove generic_fls64()
- remove generic_hweight{64,32,16,8}()
- remove minix_{test,set,test_and_clear,test,find_first_zero}_bit()

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: powerpc: use generic bitops
Akinobu Mita [Sun, 26 Mar 2006 09:39:33 +0000 (01:39 -0800)]
[PATCH] bitops: powerpc: use generic bitops

- remove __{,test_and_}{set,clear,change}_bit() and test_bit()
- remove generic_fls64()
- remove generic_hweight{64,32,16,8}()
- remove sched_find_first_bit()

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: parisc: use generic bitops
Akinobu Mita [Sun, 26 Mar 2006 09:39:31 +0000 (01:39 -0800)]
[PATCH] bitops: parisc: use generic bitops

- remove __{,test_and_}{set,clear,change}_bit() and test_bit()
- remove ffz()
- remove generic_fls64()
- remove generic_hweight{32,16,8}()
- remove generic_hweight64()
- remove sched_find_first_bit()
- remove find_{next,first}{,_zero}_bit()
- remove ext2_{set,clear,test,find_first_zero,find_next_zero}_bit()

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: mips: use generic bitops
Akinobu Mita [Sun, 26 Mar 2006 09:39:30 +0000 (01:39 -0800)]
[PATCH] bitops: mips: use generic bitops

- remove __{,test_and_}{set,clear,change}_bit() and test_bit()

- unless defined(CONFIG_CPU_MIPS32) or defined(CONFIG_CPU_MIPS64)

  - remove __ffs()
  - remove ffs()
  - remove ffz()
  - remove fls()

- remove fls64()
- remove find_{next,first}{,_zero}_bit()
- remove sched_find_first_bit()
- remove generic_hweight64()
- remove generic_hweight{32,16,8}()
- remove ext2_{set,clear,test,find_first_zero,find_next_zero}_bit()
- remove ext2_{set,clear}_bit_atomic()
- remove minix_{test,set,test_and_clear,test,find_first_zero}_bit()

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: m68knommu: use generic bitops
Akinobu Mita [Sun, 26 Mar 2006 09:39:29 +0000 (01:39 -0800)]
[PATCH] bitops: m68knommu: use generic bitops

- remove ffs()
- remove __ffs()
- remove sched_find_first_bit()
- remove ffz()
- remove find_{next,first}{,_zero}_bit()
- remove generic_hweight()
- remove minix_{test,set,test_and_clear,test,find_first_zero}_bit()
- remove generic_fls()
- remove generic_fls64()

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Cc: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] ppc: fix undefined reference to hweight32
Akinobu Mita [Sun, 26 Mar 2006 09:39:28 +0000 (01:39 -0800)]
[PATCH] ppc: fix undefined reference to hweight32

Build fix for ppc

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] m68k: fix undefined reference to generic_find_next_zero_le_bit
Akinobu Mita [Sun, 26 Mar 2006 09:39:28 +0000 (01:39 -0800)]
[PATCH] m68k: fix undefined reference to generic_find_next_zero_le_bit

This patch reverts ext2 bitmap functions.

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: m68k: use generic bitops
Akinobu Mita [Sun, 26 Mar 2006 09:39:27 +0000 (01:39 -0800)]
[PATCH] bitops: m68k: use generic bitops

- remove generic_fls64()
- remove sched_find_first_bit()
- remove generic_hweight()
- remove ext2_{set,clear,test,find_first_zero,find_next_zero}_bit()

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: m32r: use generic bitops
Akinobu Mita [Sun, 26 Mar 2006 09:39:26 +0000 (01:39 -0800)]
[PATCH] bitops: m32r: use generic bitops

- remove __{,test_and_}{set,clear,change}_bit() and test_bit()
- remove ffz()
- remove find_{next,first}{,_zero}_bit()
- remove __ffs()
- remove generic_fls()
- remove generic_fls64()
- remove sched_find_first_bit()
- remove generic_ffs()
- remove generic_hweight{32,16,8}()
- remove ext2_{set,clear,test,find_first_zero,find_next_zero}_bit()
- remove ext2_{set,clear}_bit_atomic()
- remove minix_{test,set,test_and_clear,test,find_first_zero}_bit()

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: ia64: use generic bitops
Akinobu Mita [Sun, 26 Mar 2006 09:39:25 +0000 (01:39 -0800)]
[PATCH] bitops: ia64: use generic bitops

- remove generic_fls64()
- remove find_{next,first}{,_zero}_bit()
- remove ext2_{set,clear,test,find_first_zero,find_next_zero}_bit()
- remove minix_{test,set,test_and_clear,test,find_first_zero}_bit()
- remove sched_find_first_bit()

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: i386: use generic bitops
Akinobu Mita [Sun, 26 Mar 2006 09:39:24 +0000 (01:39 -0800)]
[PATCH] bitops: i386: use generic bitops

- remove generic_fls64()
- remove sched_find_first_bit()
- remove generic_hweight{32,16,8}()
- remove ext2_{set,clear,test,find_first_zero,find_next_zero}_bit()
- remove minix_{test,set,test_and_clear,test,find_first_zero}_bit()

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: h8300: use generic bitops
Akinobu Mita [Sun, 26 Mar 2006 09:39:23 +0000 (01:39 -0800)]
[PATCH] bitops: h8300: use generic bitops

- remove generic_ffs()
- remove find_{next,first}{,_zero}_bit()
- remove sched_find_first_bit()
- remove generic_hweight{32,16,8}()
- remove ext2_{set,clear,test,find_first_zero,find_next_zero}_bit()
- remove ext2_{set,clear}_bit_atomic()
- remove minix_{test,set,test_and_clear,test,find_first_zero}_bit()
- remove generic_fls()
- remove generic_fls64()

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: frv: use generic bitops
Akinobu Mita [Sun, 26 Mar 2006 09:39:22 +0000 (01:39 -0800)]
[PATCH] bitops: frv: use generic bitops

- remove ffz()
- remove find_{next,first}{,_zero}_bit()
- remove generic_ffs()
- remove __ffs()
- remove generic_fls64()
- remove sched_find_first_bit()
- remove generic_hweight{32,16,8}()
- remove ext2_{set,clear,test,find_first_zero,find_next_zero}_bit()
- remove minix_{test,set,test_and_clear,test,find_first_zero}_bit()

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: cris: use generic bitops
Akinobu Mita [Sun, 26 Mar 2006 09:39:21 +0000 (01:39 -0800)]
[PATCH] bitops: cris: use generic bitops

- remove __{,test_and_}{set,clear,change}_bit() and test_bit()
- remove generic_fls()
- remove generic_fls64()
- remove generic_hweight{32,16,8}()
- remove find_{next,first}{,_zero}_bit()
- remove ext2_{set,clear,test,find_first_zero,find_next_zero}_bit()
- remove minix_{test,set,test_and_clear,test,find_first_zero}_bit()
- remove sched_find_first_bit()

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Acked-by: Mikael Starvik <starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: arm26: use generic bitops
Akinobu Mita [Sun, 26 Mar 2006 09:39:20 +0000 (01:39 -0800)]
[PATCH] bitops: arm26: use generic bitops

- remove __{,test_and_}{set,clear,change}_bit() and test_bit()
- remove ffz()
- remove __ffs()
- remove generic_fls()
- remove generic_fls64()
- remove generic_ffs()
- remove sched_find_first_bit()
- remove generic_hweight{32,16,8}()

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Cc: Ian Molton <spyro@f2s.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: arm: use generic bitops
Akinobu Mita [Sun, 26 Mar 2006 09:39:19 +0000 (01:39 -0800)]
[PATCH] bitops: arm: use generic bitops

- remove __{,test_and_}{set,clear,change}_bit() and test_bit()

- if __LINUX_ARM_ARCH__ < 5

  - remove ffz()
  - remove __ffs()
  - remove generic_fls()
  - remove generic_ffs()

- remove generic_fls64()
- remove sched_find_first_bit()
- remove generic_hweight{32,16,8}()

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: alpha: use generic bitops
Akinobu Mita [Sun, 26 Mar 2006 09:39:18 +0000 (01:39 -0800)]
[PATCH] bitops: alpha: use generic bitops

- unless defined(__alpha_cix__) and defined(__alpha_fix__)

  - remove generic_fls()
  - remove generic_hweight{64,32,16,8}()

- remove generic_fls64()
- remove find_{next,first}{,_zero}_bit()
- remove ext2_{set,clear,test,find_first_zero,find_next_zero}_bit()
- remove minix_{test,set,test_and_clear,test,find_first_zero}_bit()

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: generic minix_{test,set,test_and_clear,test,find_first_zero}_bit()
Akinobu Mita [Sun, 26 Mar 2006 09:39:17 +0000 (01:39 -0800)]
[PATCH] bitops: generic minix_{test,set,test_and_clear,test,find_first_zero}_bit()

This patch introduces the C-language equivalents of the functions below:

int minix_test_and_set_bit(int nr, volatile unsigned long *addr);
int minix_set_bit(int nr, volatile unsigned long *addr);
int minix_test_and_clear_bit(int nr, volatile unsigned long *addr);
int minix_test_bit(int nr, const volatile unsigned long *addr);
unsigned long minix_find_first_zero_bit(const unsigned long *addr,
                                        unsigned long size);

In include/asm-generic/bitops/minix.h
   and include/asm-generic/bitops/minix-le.h

This code largely copied from: include/asm-sparc/bitops.h

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: generic ext2_{set,clear}_bit_atomic()
Akinobu Mita [Sun, 26 Mar 2006 09:39:16 +0000 (01:39 -0800)]
[PATCH] bitops: generic ext2_{set,clear}_bit_atomic()

This patch introduces the C-language equivalents of the functions below:

int ext2_set_bit_atomic(int nr, volatile unsigned long *addr);
int ext2_clear_bit_atomic(int nr, volatile unsigned long *addr);

In include/asm-generic/bitops/ext2-atomic.h

This code largely copied from: include/asm-sparc/bitops.h

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: generic ext2_{set,clear,test,find_first_zero,find_next_zero}_bit()
Akinobu Mita [Sun, 26 Mar 2006 09:39:15 +0000 (01:39 -0800)]
[PATCH] bitops: generic ext2_{set,clear,test,find_first_zero,find_next_zero}_bit()

This patch introduces the C-language equivalents of the functions below:

int ext2_set_bit(int nr, volatile unsigned long *addr);
int ext2_clear_bit(int nr, volatile unsigned long *addr);
int ext2_test_bit(int nr, const volatile unsigned long *addr);
unsigned long ext2_find_first_zero_bit(const unsigned long *addr,
                                       unsigned long size);
unsinged long ext2_find_next_zero_bit(const unsigned long *addr,
                                      unsigned long size);

In include/asm-generic/bitops/ext2-non-atomic.h

This code largely copied from:

include/asm-powerpc/bitops.h
include/asm-parisc/bitops.h

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] fix error: __u32 undeclared
Akinobu Mita [Sun, 26 Mar 2006 09:39:14 +0000 (01:39 -0800)]
[PATCH] fix error: __u32 undeclared

Build fix for s390 declare __u32 and __u64.

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: generic hweight{64,32,16,8}()
Akinobu Mita [Sun, 26 Mar 2006 09:39:13 +0000 (01:39 -0800)]
[PATCH] bitops: generic hweight{64,32,16,8}()

This patch introduces the C-language equivalents of the functions below:

unsigned int hweight32(unsigned int w);
unsigned int hweight16(unsigned int w);
unsigned int hweight8(unsigned int w);
unsigned long hweight64(__u64 w);

In include/asm-generic/bitops/hweight.h

This code largely copied from: include/linux/bitops.h

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: generic ffs()
Akinobu Mita [Sun, 26 Mar 2006 09:39:12 +0000 (01:39 -0800)]
[PATCH] bitops: generic ffs()

This patch introduces the C-language equivalent of the function: int ffs(int
x);

In include/asm-generic/bitops/ffs.h

This code largely copied from: include/linux/bitops.h

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: generic sched_find_first_bit()
Akinobu Mita [Sun, 26 Mar 2006 09:39:12 +0000 (01:39 -0800)]
[PATCH] bitops: generic sched_find_first_bit()

This patch introduces the C-language equivalent of the function: int
sched_find_first_bit(const unsigned long *b);

In include/asm-generic/bitops/sched.h

This code largely copied from: include/asm-powerpc/bitops.h

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: generic find_{next,first}{,_zero}_bit()
Akinobu Mita [Sun, 26 Mar 2006 09:39:11 +0000 (01:39 -0800)]
[PATCH] bitops: generic find_{next,first}{,_zero}_bit()

This patch introduces the C-language equivalents of the functions below:

unsigned logn find_next_bit(const unsigned long *addr, unsigned long size,
                            unsigned long offset);
unsigned long find_next_zero_bit(const unsigned long *addr, unsigned long size,
                                 unsigned long offset);
unsigned long find_first_zero_bit(const unsigned long *addr,
                                  unsigned long size);
unsigned long find_first_bit(const unsigned long *addr, unsigned long size);

In include/asm-generic/bitops/find.h

This code largely copied from: arch/powerpc/lib/bitops.c

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: generic fls64()
Akinobu Mita [Sun, 26 Mar 2006 09:39:10 +0000 (01:39 -0800)]
[PATCH] bitops: generic fls64()

This patch introduces the C-language equivalent of the function: int
fls64(__u64 x);

In include/asm-generic/bitops/fls64.h

This code largely copied from: include/linux/bitops.h

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: generic fls()
Akinobu Mita [Sun, 26 Mar 2006 09:39:09 +0000 (01:39 -0800)]
[PATCH] bitops: generic fls()

This patch introduces the C-language equivalent of the function: int fls(int
x);

In include/asm-generic/bitops/fls.h

This code largely copied from: include/linux/bitops.h

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: generic ffz()
Akinobu Mita [Sun, 26 Mar 2006 09:39:08 +0000 (01:39 -0800)]
[PATCH] bitops: generic ffz()

This patch introduces the C-language equivalent of the function: unsigned long
ffz(unsigned long word);

In include/asm-generic/bitops/ffz.h

This code largely copied from: include/asm-parisc/bitops.h

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: generic __ffs()
Akinobu Mita [Sun, 26 Mar 2006 09:39:08 +0000 (01:39 -0800)]
[PATCH] bitops: generic __ffs()

This patch introduces the C-language equivalent of the function: unsigned long
__ffs(unsigned long word);

In include/asm-generic/bitops/__ffs.h

This code largely copied from: include/asm-sparc/bitops.h

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] bitops: generic __{,test_and_}{set,clear,change}_bit() and test_bit()
Akinobu Mita [Sun, 26 Mar 2006 09:39:07 +0000 (01:39 -0800)]
[PATCH] bitops: generic __{,test_and_}{set,clear,change}_bit() and test_bit()

This patch introduces the C-language equivalents of the functions below:

void __set_bit(int nr, volatile unsigned long *addr);
void __clear_bit(int nr, volatile unsigned long *addr);
void __change_bit(int nr, volatile unsigned long *addr);
int __test_and_set_bit(int nr, volatile unsigned long *addr);
int __test_and_clear_bit(int nr, volatile unsigned long *addr);
int __test_and_change_bit(int nr, volatile unsigned long *addr);
int test_bit(int nr, const volatile unsigned long *addr);

In include/asm-generic/bitops/non-atomic.h

This code largely copied from: asm-powerpc/bitops.h

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>