David Fries [Thu, 16 Oct 2008 05:04:50 +0000 (22:04 -0700)]
W1: w1_slave_read_id read bug, use device_attribute
Fix bug reading the id sysfs file. If less than the full 8 bytes were
read, the next read would start at the first byte instead of continuing.
It needed the offset added to memcpy, or the better solution was to
replace it with the device attribute instead of bin attribute.
Signed-off-by: David Fries <david@fries.net> Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Fries [Thu, 16 Oct 2008 05:04:44 +0000 (22:04 -0700)]
W1: recode w1_slave_found logic
Simplified the logic in w1_slave_found by using the new
w1_attach_slave_device function to find a slave and mark it as active or
add the device if the crc checks.
Signed-off-by: David Fries <david@fries.net> Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Fries [Thu, 16 Oct 2008 05:04:43 +0000 (22:04 -0700)]
W1: be able to manually add and remove slaves
sysfs entries were added to manually add and remove slave devices. This
is useful if the automatic bus searching is disabled, and the device ids
are already known.
[akpm@linux-foundation.org: fix printk types] Signed-off-by: David Fries <david@fries.net> Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Fries [Thu, 16 Oct 2008 05:04:42 +0000 (22:04 -0700)]
W1: feature, enable hardware strong pullup
Add a strong pullup option to the w1 system. This supplies extra power
for parasite powered devices. There is a w1_master_pullup sysfs entry and
enable_pullup module parameter to enable or disable the strong pullup.
The one wire bus requires at a minimum one wire and ground. The common
wire is used for sending and receiving data as well as supplying power to
devices that are parasite powered of which temperature sensors can be one
example. The bus must be idle and left high while a temperature
conversion is in progress, in addition the normal pullup resister on
larger networks or even higher temperatures might not supply enough power.
The pullup resister can't provide too much pullup current, because
devices need to pull the bus down to write a value. This enables the
strong pullup for supported hardware, which can supply more current when
requested. Unsupported hardware will just delay with the bus high.
The hardware USB 2490 one wire bus master has a bit on some commands which
will enable the strong pullup as soon as the command finishes executing.
To use strong pullup, call the new w1_next_pullup function to register the
duration. The next write command will call set_pullup before sending the
data, and reset the duration to zero once it returns.
Switched from simple_strtol to strict_strtol.
Signed-off-by: David Fries <david@fries.net> Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Fries [Thu, 16 Oct 2008 05:04:41 +0000 (22:04 -0700)]
W1: w1_process, block or sleep
The w1_process thread's sleeping and termination has been modified.
msleep_interruptible was replaced by schedule_timeout and schedule to
allow for kthread_stop and wake_up_process to interrupt the sleep and the
unbounded sleeping when a bus search is disabled. The W1_MASTER_NEED_EXIT
and flags variable were removed as they were redundant with
kthread_should_stop and kthread_stop. If w1_process is sleeping,
requesting a search will immediately wake it up rather than waiting for
the end of msleep_interruptible previously.
Signed-off-by: David Fries <david@fries.net> Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Fries [Thu, 16 Oct 2008 05:04:40 +0000 (22:04 -0700)]
W1: don't delay search start
Move the creation of the w1_process thread to after the device has been
initialized. This way w1_process doesn't have to check to see if it has
been initialized and the bus search can proceed without sleeping. That
also eliminates two checks in the w1_process loop. The sleep now happens
at the end of the loop not the beginning.
Also added a comment for why the atomic_set was 2.
Signed-off-by: David Fries <david@fries.net> Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Fries [Thu, 16 Oct 2008 05:04:39 +0000 (22:04 -0700)]
W1: abort search early on on exit
Early abort if the master driver or the hardware goes away in the middle
of a bus search operation. The alternative is to spam the print buffer up
to 64*64 times with read errors in the case of USB.
Signed-off-by: David Fries <david@fries.net> Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Fries [Thu, 16 Oct 2008 05:04:38 +0000 (22:04 -0700)]
W1: fix deadlocks and remove w1_control_thread
w1_control_thread was removed which would wake up every second and process
newly registered family codes and complete some final cleanup for a
removed master. Those routines were moved to the threads that were
previously requesting those operations. A new function
w1_reconnect_slaves takes care of reconnecting existing slave devices when
a new family code is registered or removed. The removal case was missing
and would cause a deadlock waiting for the family code reference count to
decrease, which will now happen. A problem with registering a family code
was fixed. A slave device would be unattached if it wasn't yet claimed,
then attached at the end of the list, two unclaimed slaves would cause an
infinite loop.
The struct w1_bus_master.search now takes a pointer to the struct
w1_master device to avoid searching for it, which would have caused a
lock ordering deadlock with the removal of w1_control_thread.
Signed-off-by: David Fries <david@fries.net> Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Rajiv Andrade [Thu, 16 Oct 2008 05:04:36 +0000 (22:04 -0700)]
TPM: include "moderated for non-subscribers" notation in MAINTAINERS
Cc: Eric Paris <eparis@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Valdis Kletnieks [Thu, 16 Oct 2008 05:04:35 +0000 (22:04 -0700)]
tpm: work around bug in Broadcom BCM0102 chipset
Patch tpm-correct-tpm-timeouts-to-jiffies-conversion reveals a bug in the
Broadcom BCM0102 TPM chipset used in the Dell Latitude D820 - although
most of the timeouts are returned in usecs as per the spec, one is
apparently returned in msecs, which results in a too-small value leading
to a timeout when the code treats it as usecs. To prevent a regression,
we check for the known too-short value and adjust it to a value that makes
things work.
Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Cc: Marcin Obara <marcin_obara@users.sourceforge.net> Cc: Marcel Selhorst <tpm@selhorst.net> Cc: Kylene Jo Hall <kjhall@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Marcin Obara [Thu, 16 Oct 2008 05:04:34 +0000 (22:04 -0700)]
tpm: correct tpm timeouts to jiffies conversion
This patch fixes timeouts conversion to jiffies, by replacing
msecs_to_jiffies() calls with usecs_to_jiffies(). According to TCG TPM
Specification Version 1.2 Revision 103 (pages 166, 167) TPM timeouts and
durations are returned in microseconds (usec) not in miliseconds (msec).
This fixes a long hang while loading TPM driver, if TPM chip starts in
"Idle" state instead of "Ready" state. Without this patch - 'modprobe'
may hang for 30 seconds or more.
Signed-off-by: Marcin Obara <marcin_obara@users.sourceforge.net> Cc: Marcel Selhorst <tpm@selhorst.net> Cc: Kylene Jo Hall <kjhall@us.ibm.com> Cc: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Aristeu Rozanski [Thu, 16 Oct 2008 05:04:32 +0000 (22:04 -0700)]
edac i5000: fix thermal issues
Make the Thermal messages (temperature got past Tmid) be displayed only
once because:
1) it's the BIOS job to configure and handle the memory throttling
2) if the BIOS is broken or is aware about the condition, flooding the
system logs won't help anything.
3) According to the specification update for Intel 5000 MCHs, all the
revisions of this MCH have problems on the thermal sensors, making
not automatic (a.k.a. intelligent thermal throttling) impossible.
Signed-off-by: Aristeu Rozanski <aris@redhat.com> Signed-off-by: Doug Thompson <dougthompson@xmission.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Aristeu Rozanski [Thu, 16 Oct 2008 05:04:31 +0000 (22:04 -0700)]
edac i5000: fix error messages
Update the i5000_edac messages, making everything pass through the EDAC
(so the log controls will work) and being more specific about the errors.
Also, it makes the miscellaneous errors optional and disabled by default.
As I didn't found anywhere information about M23ERR-M26ERR
(FERR_NF_THERMAL) on FERR_NF_FBD, I'm removing them.
Signed-off-by: Aristeu Rozanski <aris@redhat.com> Signed-off-by: Doug Thompson <dougthompson@xmission.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andrew Kilkenny [Thu, 16 Oct 2008 05:04:28 +0000 (22:04 -0700)]
edac mpc85xx: add support for mpc8572
This adds support for the dual-core MPC8572 processor. We have
to support making SPR changes on each core. Also, since we can
have multiple memory controllers sharing an interrupt, flag the
interrupts with IRQF_SHARED.
Signed-off-by: Andrew Kilkenny <akilkenny@xes-inc.com> Signed-off-by: Nate Case <ncase@xes-inc.com> Acked-by: Dave Jiang <djiang@mvista.com> Signed-off-by: Doug Thompson <dougthompson@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
It makes i82443bxgx_edac coexist with intel_agp using the same approach as
several other EDAC drivers.
Tested on Intel's L443GX with redhat's 2.6.18 with whole EDAC subsystem
backported a while ago.
[root@host ~]# dmesg|grep -iE '(AGP|EDAC)'
Linux agpgart interface v0.101 (c) Dave Jones
agpgart: Detected an Intel 440GX Chipset.
agpgart: AGP aperture is 64M @ 0xf8000000
EDAC MC: Ver: 2.1.0 Jun 27 2008
EDAC MC0: Giving out device to 'i82443bxgx_edac' 'I82443BXGX': DEV 0000:00:00.0
EDAC PCI0: Giving out device to module 'i82443bxgx_edac' controller 'EDAC PCI controller': DEV '0000:00:00.0' (POLLED)
Signed-off-by: Vladislav Bogdanov <slava@nsys.by> Cc: Doug Thompson <norsk5@yahoo.com> Cc: Dave Airlie <airlied@linux.ie> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Oleg Nesterov [Thu, 16 Oct 2008 05:04:25 +0000 (22:04 -0700)]
pid_ns: de_thread: kill the now unneeded ->child_reaper change
de_thread() checks if the old leader was the ->child_reaper, this is not
possible any longer. With the previous patch ->group_leader itself will
change ->child_reaper on exit.
Henceforth find_new_reaper() is the only function (apart from
initialization) which plays with ->child_reaper.
Alexey Dobriyan [Thu, 16 Oct 2008 05:04:23 +0000 (22:04 -0700)]
sysctl: simplify ->strategy
name and nlen parameters passed to ->strategy hook are unused, remove
them. In general ->strategy hook should know what it's doing, and don't
do something tricky for which, say, pointer to original userspace array
may be needed (name).
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Acked-by: David S. Miller <davem@davemloft.net> [ networking bits ] Cc: Ralf Baechle <ralf@linux-mips.org> Cc: David Howells <dhowells@redhat.com> Cc: Matt Mackall <mpm@selenic.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Kay Sievers [Thu, 16 Oct 2008 05:04:21 +0000 (22:04 -0700)]
block: sanitize invalid partition table entries
We currently follow blindly what the partition table lies about the
disk, and let the kernel create block devices which can not be accessed.
Trying to identify the device leads to kernel logs full of:
sdb: rw=0, want=73392, limit=28800
attempt to access beyond end of device
Here is an example of a broken partition table, where sda2 starts
behind the end of the disk, and sdb3 is larger than the entire disk:
Disk /dev/sdb: 14 MB, 14745600 bytes
1 heads, 29 sectors/track, 993 cylinders, total 28800 sectors
Device Boot Start End Blocks Id System
/dev/sdb1 29 7800 3886 83 Linux
/dev/sdb2 37801 45601 3900+ 83 Linux
/dev/sdb3 15602 73402 28900+ 83 Linux
/dev/sdb4 23403 28796 2697 83 Linux
The kernel creates these completely invalid devices, which can not be
accessed, or may lead to other unpredictable failures:
grep . /sys/class/block/sdb*/{start,size}
/sys/class/block/sdb/size:28800
/sys/class/block/sdb1/start:29
/sys/class/block/sdb1/size:7772
/sys/class/block/sdb2/start:37801
/sys/class/block/sdb2/size:7801
/sys/class/block/sdb3/start:15602
/sys/class/block/sdb3/size:57801
/sys/class/block/sdb4/start:23403
/sys/class/block/sdb4/size:5394
With this patch, we ignore partitions which start behind the end of the disk,
and limit partitions to the end of the disk if they pretend to be larger:
grep . /sys/class/block/sdb*/{start,size}
/sys/class/block/sdb/size:28800
/sys/class/block/sdb1/start:29
/sys/class/block/sdb1/size:7772
/sys/class/block/sdb3/start:15602
/sys/class/block/sdb3/size:13198
/sys/class/block/sdb4/start:23403
/sys/class/block/sdb4/size:5394
These warnings are printed to the kernel log:
sdb: p2 ignored, start 37801 is behind the end of the disk
sdb: p3 size 57801 limited to end of disk
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Cc: Herton Ronaldo Krzesinski <herton@mandriva.com.br> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Adrian Bunk [Thu, 16 Oct 2008 05:04:20 +0000 (22:04 -0700)]
fs/partitions/acorn.c: remove dead code
I missed this when I did the arm26 removal.
Reported-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Paul Mundt [Thu, 16 Oct 2008 05:04:16 +0000 (22:04 -0700)]
binfmt_elf_fdpic: wire up AT_EXECFD, AT_EXECFN, AT_SECURE
These auxvec entries are the only ones left unhandled out of the current
base implementation. This syncs up binfmt_elf_fdpic with linux/auxvec.h
and current binfmt_elf.
Signed-off-by: Paul Mundt <lethal@linux-sh.org> Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Paul Mundt [Thu, 16 Oct 2008 05:04:15 +0000 (22:04 -0700)]
binfmt_elf_fdpic: convert initial stack alignment to arch_align_stack()
binfmt_elf_fdpic seems to have grabbed a hard-coded hack from an ancient
version of binfmt_elf in order to try and fix up initial stack alignment
on multi-threaded x86, which while in addition to being unused, was also
pushed down beyond the first set of operations on the stack pointer,
negating the entire purpose.
These days, we have an architecture independent arch_align_stack(), so we
switch to using that instead. Move the initial alignment up before the
initial stores while we're at it.
Signed-off-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Paul Mundt [Thu, 16 Oct 2008 05:04:15 +0000 (22:04 -0700)]
binfmt_elf_fdpic: support auxvec base platform string
Commit 483fad1c3fa1060d7e6710e84a065ad514571739 ("ELF loader support for
auxvec base platform string") introduced AT_BASE_PLATFORM, but only
implemented it for binfmt_elf.
Given that AT_VECTOR_SIZE_BASE is unconditionally enlarged for us, and
it's only optionally added in for the platforms that set
ELF_BASE_PLATFORM, wire it up for binfmt_elf_fdpic, too.
Signed-off-by: Paul Mundt <lethal@linux-sh.org> Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Adrian Bunk [Thu, 16 Oct 2008 05:04:13 +0000 (22:04 -0700)]
quota: remove CVS keywords
Remove CVS keywords that weren't updated for a long time from comments.
Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Julien Brunel [Thu, 16 Oct 2008 05:04:12 +0000 (22:04 -0700)]
fs/reiserfs: use an IS_ERR test rather than a NULL test
In case of error, the function open_xa_dir returns an ERR pointer, but
never returns a NULL pointer. So a NULL test that comes after an IS_ERR
test should be deleted.
The semantic match that finds this problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@match_bad_null_test@
expression x, E;
statement S1,S2;
@@
x = open_xa_dir(...)
... when != x = E
(
* if (x == NULL && ...) S1 else S2
|
* if (x == NULL || ...) S1 else S2
)
// </smpl>
Signed-off-by: Julien Brunel <brunel@diku.dk> Signed-off-by: Julia Lawall <julia@diku.dk> Cc: Jeff Mahoney <jeffm@suse.com> Cc: Jan Kara <jack@ucw.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Eric Sesterhenn [Thu, 16 Oct 2008 05:04:11 +0000 (22:04 -0700)]
hfs: fix namelength memory corruption
Fix a stack corruption caused by a corrupted hfs filesystem. If the
catalog name length is corrupted the memcpy overwrites the catalog btree
structure. Since the field is limited to HFS_NAMELEN bytes in the
structure and the file format, we throw an error if it is too long.
Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This happens because the return value of read_mapping_page() is passed on
to kmap unchecked. The bug is triggered after the first
read_mapping_page() in hfsplus_block_allocate(), this patch fixes all
three usages in this functions but leaves the ones further down in the
file unchanged.
Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Eric Sesterhenn [Thu, 16 Oct 2008 05:04:08 +0000 (22:04 -0700)]
hfsplus: fix Buffer overflow with a corrupted image
When an hfsplus image gets corrupted it might happen that the catalog
namelength field gets b0rked. If we mount such an image the memcpy() in
hfsplus_cat_build_key_uni() writes more than the 255 that fit in the name
field. Depending on the size of the overwritten data, we either only get
memory corruption or also trigger an oops like this:
Since hfsplus_cat_build_key_uni() returns void and only has one callsite,
the check is performed at the callsite.
Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Eric Sandeen [Thu, 16 Oct 2008 05:04:02 +0000 (22:04 -0700)]
ext2: avoid printk floods in the face of directory corruption
A very large directory with many read failures (either due to storage
problems, or due to invalid size & blocks from corruption) will generate a
printk storm as the filesystem continues to try to read all the blocks.
This flood of messages can tie up the box until it is complete - which may
be a very long time, especially for very large corrupted values.
This is fixed by only reporting the corruption once each time we try to
read the directory.
Mingming Cao [Thu, 16 Oct 2008 05:04:01 +0000 (22:04 -0700)]
ext2: fix ext2 block reservation early ENOSPC issue
We could run into ENOSPC error on ext2, even when there is free blocks on
the filesystem.
The problem is triggered in the case the goal block group has 0 free
blocks , and the rest block groups are skipped due to the check of
"free_blocks < windowsz/2". Current code could fall back to non
reservation allocation to prevent early ENOSPC after examing all the block
groups with reservation on , but this code was bypassed if the reservation
window is turned off already, which is true in this case.
This patch fixed two issues:
1) We don't need to turn off block reservation if the goal block group has
0 free blocks left and continue search for the rest of block groups.
Current code the intention is to turn off the block reservation if the
goal allocation group has a few (some) free blocks left (not enough for
make the desired reservation window),to try to allocation in the goal
block group, to get better locality. But if the goal blocks have 0 free
blocks, it should leave the block reservation on, and continues search for
the next block groups,rather than turn off block reservation completely.
2) we don't need to check the window size if the block reservation is off.
The problem was originally found and fixed in ext4.
Signed-off-by: Mingming Cao <cmm@us.ibm.com> Cc: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Adrian Bunk [Thu, 16 Oct 2008 05:03:57 +0000 (22:03 -0700)]
pnp: remove printk() with outdated version
There's no point in printing some ancient version number forever.
Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: Rene Herman <rene.herman@gmail.com> Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Acked-by: Adam M Belay <abelay@MIT.EDU> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Because fbcon_set_all_vcs()->FBCON_SWAP() uses display->rotate == 0 instead
of fbcon_ops->rotate, and vc_resize() has no effect because it is called with
new_cols/rows == ->vc_cols/rows.
Tested on 2.6.26.5-45.fc9.x86_64, but
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git seems to
have the same problem.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: <stable@kernel.org> [2.6.27.x, 2.6.26.x, maybe 2.6.25.x] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Dmitry Baryshkov [Thu, 16 Oct 2008 05:03:55 +0000 (22:03 -0700)]
fbdev: add new TMIO framebuffer driver
Add driver for TMIO framebuffer cells as found e.g. in Toshiba TC6393XB
chips.
Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Cc: Ian Molton <spyro@f2s.com> Acked-by: Samuel Ortiz <sameo@openedhand.com> Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Randy Dunlap [Thu, 16 Oct 2008 05:03:53 +0000 (22:03 -0700)]
framebuffer: fix carminefb section mismatch
Make alloc_carmine_fb() __devinit.
WARNING: drivers/video/carminefb.o(.text+0x81b): Section mismatch in reference from the function alloc_carmine_fb() to the variable .devinit.data:carminefb_fix
The function alloc_carmine_fb() references the variable __devinitdata
carminefb_fix. This is often because alloc_carmine_fb lacks a
__devinitdata annotation or the annotation of carminefb_fix is wrong.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Sebastian Siewior <bigeasy@linutronix.de> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Darrick J. Wong [Thu, 16 Oct 2008 05:03:52 +0000 (22:03 -0700)]
matroxfb: support G200eV chip
Support the Matrox G200eV chip, based on timings that I found in the X.org
matrox driver.
Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl> Cc: Petr Vandrovec <vandrove@vc.cvut.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
fbdev: allow more chip revisions in Epson s1d13... video driver
The Epson s1d13xxx hardware is common in many handhelds, but our driver is
currently locked to a single chip revision. This patch adds an array of
known to work revisions (which can be extended).
[akpm@linux-foundation.org: cleanups] Signed-off-by: Kristoffer Ericson <Kristoffer.Ericson@gmail.com> Acked-by: Thibaut Varène <varenet@parisc-linux.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
fbdev: ignore VESA modes if framebuffer does not support them
Currently, it is possible to set a graphics VESA mode at boot time via the
vga= parameter even when no framebuffer driver supporting this is
configured. This could lead to the system booting with a black screen,
without a usable console.
Fix this problem by only allowing to set graphics modes at boot time if a
supporting framebuffer driver is configured.
Signed-off-by: Michal Januszewski <spock@gentoo.org> Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Marcin Slusarz [Thu, 16 Oct 2008 05:03:50 +0000 (22:03 -0700)]
vgacon: vgacon_scrolldelta simplification
There's no point in checking diff == c->vc_rows, because it can be true
only when count == 0, but we already checked that. Additionally move
variables used only in one block to this block.
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Cc: Antonino Daplas <adaplas@gmail.com> Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Marcin Slusarz [Thu, 16 Oct 2008 05:03:49 +0000 (22:03 -0700)]
vgacon: optimize scrolling
Join multiple scr_memcpyw into 1-3 calls (usually 2). (benchmarked
average speedup: 1%)
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jon Dufresne [Thu, 16 Oct 2008 05:03:49 +0000 (22:03 -0700)]
fbmon: fix EDID parser to detect interlace modes
The current EDID parser in the linux kernel ignores interlace modes. The
patch looks for the edid interlace flag and adjusts the vertical
resolution if it is found.
Signed-off-by: Jon Dufresne <jon.dufresne@gmail.com> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Michal Januszewski <spock@gentoo.org> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
uvesafb: don't treat mode info retrieval failures as errors
Some BIOSes return error codes when queried for information about
modes from their own modelist. uvesafb treats this as an error
case and bails out.
Change this behavior so that broken modes do not prevent the driver
from working. Only the failure to retrieve information about any
usable video mode is considered to be an error case.
Signed-off-by: Michal Januszewski <spock@gentoo.org> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
radeonfb: accelerate imageblit and other improvements
Implement support for HW color expansion of 1bpp images, along with some
improvements to the FIFO handling and other accel operations.
The offset fixup code is now unnecessary as the fbcon core will call our
set_par upon switch back from KD_GRAPHICS before anything else happens. I
removed it as it would slow down accel operations.
The fifo wait has been improved to avoid hitting the HW register as often,
and the various accel ops are now performing better caching of register
values.
Overall, this improve accel performances. The imageblit acceleration does
result in a small overall regression in performances on some machines (on
the order of 5% on some x86), probably becaus the SW path provides a
better bus utilisation, but I decided to ingnore that as the performances
is still very good, and on the other hand, some machines such as some
sparc64 get a 3 fold performance improvement.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: David S. Miller <davem@davemloft.net> Cc: Krzysztof Halasa <khc@pm.waw.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
radeonfb: misc cleanup of engine and dst cache handling
Fix a couple of incomplete tests of the chip families in the engine
init/reset code and proper initialization of the destination cache mode.
The result should better match what the latest X radeon driver does.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: David S. Miller <davem@davemloft.net> Cc: Krzysztof Halasa <khc@pm.waw.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Peter Jones [Thu, 16 Oct 2008 05:03:43 +0000 (22:03 -0700)]
efifb/imacfb consolidation + hardware support
Remove imacfb entirely, merging its DMI table into the (otherwise very
similar) efifb driver. This also adds hardware support for many of the
newer Intel Apple hardware. This has been fairly well tested; we've been
shipping it in Fedora for some time.
Signed-off-by: Peter Jones <pjones@redhat.com> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Cc: Jaya Kumar <jayakumar.lkml@gmail.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Thu, 16 Oct 2008 05:03:42 +0000 (22:03 -0700)]
cirrusfb: do not change MCLK for Alpine chips
A memory clock value (MCLK) is changed to a minimum required by a current
mode bandwidth. This usually lowers the MCLK to its minimum (50 MHz) thus
decreasing the card performance. Just leave the MCLK value set by card
BIOS.
The CL-GD5446 Technical Reference Manual point 9.9.1.3 states that if a
pixclock value is close (~1%) to the MCLK or MCLK/2 this may result in a
jitter on the screen. A countermeasure is to use the MCLK as pixclock
source instead of a VCLK. The patch implements this as well.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Thu, 16 Oct 2008 05:03:41 +0000 (22:03 -0700)]
cirrusfb: fix 16bpp modes
The 16bpp mode did not work on the Cirrus cards as the visual type was set
to DIRECTCOLOR instead of TRUECOLOR. The Alpine family used one incorrect
register setting so this 16bpp modes generated wrong horizontal frequency.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Thu, 16 Oct 2008 05:03:41 +0000 (22:03 -0700)]
cirrusfb: add noaccel module parameter
The noaccel parameter is already handled if the driver is not built as
module.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Thu, 16 Oct 2008 05:03:40 +0000 (22:03 -0700)]
cirrusfb: drop clock fields from cirrusfb_regs structure
Move call to pixclock calculation into the cirrusfb_set_par_foo(). It
makes copy of clock registers redundant.
Simplify clock calculations further.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Thu, 16 Oct 2008 05:03:39 +0000 (22:03 -0700)]
cirrusfb: add __devinit attribute to probing functions
Add __devinit attribute to probing functions. This fixed section mismatch
warning from my previous patch.
Kill one redundant forward declaration.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Thu, 16 Oct 2008 05:03:38 +0000 (22:03 -0700)]
cirrusfb: drop device pointers from cirrusfb_info
The device pointer can be easily obtained from fb_info->device if needed.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Thu, 16 Oct 2008 05:03:37 +0000 (22:03 -0700)]
cirrusfb: remove 24 bpp mode
The 24 bpp mode is not implemented. Disallow it in the
cirrusfb_check_var() and remove it from checks.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Thu, 16 Oct 2008 05:03:36 +0000 (22:03 -0700)]
cirrusfb: simplify clock calculation
Simplify clock calculation.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Thu, 16 Oct 2008 05:03:36 +0000 (22:03 -0700)]
cirrusfb: remove information about memory size during mode change
Remove information about memory size displayed twice each time a display
mode change.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Phil Endecott [Thu, 16 Oct 2008 05:03:35 +0000 (22:03 -0700)]
intelfb: support 945GME (as used in ASUS Eee 901)
Add support for Intel's 945GME graphics chip to the intelfb driver. I
have assumed that the 945GME is identical to the already-supported 945GM
apart from its PCI IDs; this is based on a quick look at the X driver for
these chips which seems to treat them identically.
The 945GME is used in the ASUS Eee 901, and I coded this in the hope that
I'd be able to use it to get a console at the native 1024x600 resolution
which is not known to the BIOS. I realised too late that the intelfb
driver does not support mode changing on laptops, so it won't be any
use for me.
Signed-off-by: Phil Endecott <spam_from_intelfb@chezphil.org> Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Thu, 16 Oct 2008 05:03:33 +0000 (22:03 -0700)]
neofb: remove open_lock mutex
Remove mutex from the fb_open/fb_release functions as these operations are
mutexed at fb layer.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Thu, 16 Oct 2008 05:03:33 +0000 (22:03 -0700)]
vga16fb: remove open_lock mutex
Remove mutex from the fb_open/fb_release functions as these operations are
mutexed at fb layer.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Thu, 16 Oct 2008 05:03:32 +0000 (22:03 -0700)]
neofb: kill some redundant code
Move common code outside if/else or switch/case clauses.
Drop checks done twice inside the neofb_check_var().
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
via_utility.c, via_utility.h: support user mode application with
additional information vt1636.c, vt1636.h: setting for chip vt1636
Signed-off-by: Joseph Chan <josephchan@via.com.tw> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Joseph Chan [Thu, 16 Oct 2008 05:03:29 +0000 (22:03 -0700)]
viafb: via_i2c.c, via_i2c.h, viamode.c, viamode.h
via_i2c.c, via_i2c.h: Implement i2c specification.
viamode.c, viamode.c: all support modes information.
Signed-off-by: Joseph Chan <josephchan@via.com.tw> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Joseph Chan [Thu, 16 Oct 2008 05:03:29 +0000 (22:03 -0700)]
viafb: viafbdev.c (update)
Remove the macro MMIO_OUT32, and replace it with writel() function.
And replace "u32" with "unsigned long" in writel() function (original
MMIO_OUT32 marco) for avoiding warning message in 64bit OS.
Signed-off-by: Joseph Chan <josephchan@via.com.tw> Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
tbl1636.c, tbl1636.h: patch setting for VT1636.
tblDPASetting.c, tblDPASetting.h: patch for graphic clock skew.
Signed-off-by: Joseph Chan <josephchan@via.com.tw> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Joseph Chan [Thu, 16 Oct 2008 05:03:26 +0000 (22:03 -0700)]
viafb: Makefile, share.h
Makefile for drivers/video/via/
share.h: shared macro for viafb
Signed-off-by: Joseph Chan <josephchan@via.com.tw> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Joseph Chan <josephchan@via.com.tw> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Joseph Chan [Thu, 16 Oct 2008 05:03:24 +0000 (22:03 -0700)]
viafb: iface.c, iface.h, ioctl.c, ioctl.h
iface.c, iface.h: support getting video memory from backdoor.
ioctl.c, ioctl.h: support user mode application with additional information
Signed-off-by: Joseph Chan <josephchan@via.com.tw> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Joseph Chan [Thu, 16 Oct 2008 05:03:22 +0000 (22:03 -0700)]
viafb: chip.h, debug.h
Header file of information about via chipsets and debug function.
Signed-off-by: Joseph Chan <josephchan@via.com.tw> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Joseph Chan [Thu, 16 Oct 2008 05:03:20 +0000 (22:03 -0700)]
viafb: Makefile, Kconfig
Modified drivers/video/Makefile and drivers/video/Kconfig.
Signed-off-by: Joseph Chan <josephchan@via.com.tw> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Joseph Chan [Thu, 16 Oct 2008 05:03:19 +0000 (22:03 -0700)]
viafb: viafb.modes, viafb.txt
Correct via_fb_ to viafb_ and remove the Kconfig part in viafb.txt.
viafb.modes: supported mode table
viafb.txt: documentation of viafb driver
Signed-off-by: Joseph Chan <josephchan@via.com.tw> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Thu, 16 Oct 2008 05:03:17 +0000 (22:03 -0700)]
neofb: reduce panning function
Reduce panning function by deleting checks done by higher layer and
folding remaining function into the called one.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jean Delvare [Thu, 16 Oct 2008 05:03:17 +0000 (22:03 -0700)]
radeonfb: revert "Fix radeon DDC regression"
The bug was in fb_ddc and was fixed by commit b64d70825abbf706bbe80be1b11b09514b71f45e (fb_ddc: fix DDC lines quirk) so
the workaround in radeonfb can be removed now.
Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
projects / linux-2.6-omap-h63xx.git / log