Commit Graph

119740 Commits

Author SHA1 Message Date
Randy Dunlap
7f0ed77d24 [patch 1/1] audit: remove excess kernel-doc
Delete excess kernel-doc notation in kernel/auditsc.c:

Warning(linux-2.6.27-git10//kernel/auditsc.c:1481): Excess function parameter or struct member 'tsk' description in 'audit_syscall_entry'
Warning(linux-2.6.27-git10//kernel/auditsc.c:1564): Excess function parameter or struct member 'tsk' description in 'audit_syscall_exit'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Eric Paris <eparis@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-09 02:27:40 -05:00
Mike Frysinger
0b0c940a91 [PATCH] asm/generic: fix bug - kernel fails to build when enable some common audit code on Blackfin
If you enable some common audit code, the kernel fails to build.

In file included from lib/audit.c:17:
include/asm-generic/audit_write.h:3: error: '__NR_swapon' undeclared here (not in a function)
make[1]: *** [lib/audit.o] Error 1
make: *** [lib] Error 2

So do not use __NR_swapon if it isnt defined for a port.

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-09 02:27:39 -05:00
Al Viro
a64e64944f [PATCH] return records for fork() both to child and parent
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-09 02:27:38 -05:00
Eric Paris
a3f07114e3 [PATCH] Audit: make audit=0 actually turn off audit
Currently audit=0 on the kernel command line does absolutely nothing.
Audit always loads and always uses its resources such as creating the
kernel netlink socket.  This patch causes audit=0 to actually disable
audit.  Audit will use no resources and starting the userspace auditd
daemon will not cause the kernel audit system to activate.

Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-09 02:27:37 -05:00
Jonathan Corbet
218d11a8b0 Fix a race condition in FASYNC handling
Changeset a238b790d5 (Call fasync()
functions without the BKL) introduced a race which could leave
file->f_flags in a state inconsistent with what the underlying
driver/filesystem believes.  Revert that change, and also fix the same
races in ioctl_fioasync() and ioctl_fionbio().

This is a minimal, short-term fix; the real fix will not involve the
BKL.

Reported-by: Oleg Nesterov <oleg@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: stable@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-12-05 15:35:10 -08:00
Linus Torvalds
f2f1fa78a1 Enforce a minimum SG_IO timeout
There's no point in having too short SG_IO timeouts, since if the
command does end up timing out, we'll end up through the reset sequence
that is several seconds long in order to abort the command that timed
out.

As a result, shorter timeouts than a few seconds simply do not make
sense, as the recovery would be longer than the timeout itself.

Add a BLK_MIN_SG_TIMEOUT to match the existign BLK_DEFAULT_SG_TIMEOUT.

Suggested-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-12-05 14:49:18 -08:00
Linus Torvalds
24920a79a2 Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
  MIPS: Fix incorrect use of loose in vpe.c
2008-12-05 13:42:08 -08:00
Qinghuang Feng
2289e66436 drivers/message/i2o/iop.c: cleanup kerneldoc
no argument named @msg in i2o_msg_get_wait(), remove it.

Signed-off-by: Qinghuang Feng <qhfeng.kernel@gmail.com>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-12-05 13:40:52 -08:00
Nick Andrew
5e333309c5 Fix incorrect use of loose in i2o_block.c
Fix incorrect use of loose in i2o_block.c

It should be 'lose', not 'loose'.

Signed-off-by: Nick Andrew <nick@nick-andrew.net>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-12-05 13:40:52 -08:00
Nick Andrew
c4f0124057 Fix incorrect use of loose in tty/serial drivers
[Folded together as one diff from 3]

It should be 'lose', not 'loose'.

Signed-off-by: Nick Andrew <nick@nick-andrew.net>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-12-05 13:40:52 -08:00
Linus Torvalds
f10a3a32ae Revert "ACPI: battery: Convert discharge energy rate to current properly"
This reverts commit 558073dd56, along with
the failed try to fix the regression it caused ("ACPI: Fix ACPI battery
regression introduced by commit 558073"), which just made things worse.

Commit aaad077638 (that failed "Fix ACPI
battery regression") got the voltage conversion confused, and fixed the
problem with Rafael's battery monitor apparently just by mistake.

So revert them both, getting us back to the 2.6.27 state in this, and
let's revisit it when people understand what's going on.

Noted-by: Paul Martin <pm@debian.org>
Requested-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Len Brown <len.brown@intel.com>
Cc: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-12-05 13:30:03 -08:00
Nick Andrew
8ebcfc8bcb MIPS: Fix incorrect use of loose in vpe.c
It should be 'lose', not 'loose'.

Signed-off-by: Nick Andrew <nick@nick-andrew.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-12-05 18:19:23 +00:00
Linus Torvalds
bbeba4c35c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/bdev
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/bdev:
  [PATCH] fix bogus argument of blkdev_put() in pktcdvd
  [PATCH 2/2] documnt FMODE_ constants
  [PATCH 1/2] kill FMODE_NDELAY_NOW
  [PATCH] clean up blkdev_get a little bit
  [PATCH] Fix block dev compat ioctl handling
  [PATCH] kill obsolete temporary comment in swsusp_close()
2008-12-04 21:45:44 -08:00
Linus Torvalds
6df944c5f8 Merge branch 'drm-gem-update' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-gem-update' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm/i915: Return error in i915_gem_set_to_gtt_domain if we're not in the GTT.
  drm/i915: Retry execbuffer pinning after clearing the GTT
  drm/i915: Move the execbuffer domain computations together
  drm/i915: Rename object_set_domain to object_set_to_gpu_domain
  drm/i915: Make a single set-to-cpu-domain path and use it wherever needed.
  drm/i915: Make a single set-to-gtt-domain path.
  drm/i915: If interrupted while setting object domains, still emit the flush.
  drm/i915: Move flushing list cleanup from flush request retire to request emit.
  drm/i915: Respect GM965/GM45 bit-17-instead-of-bit-11 option for swizzling.
2008-12-04 21:44:40 -08:00
Linus Torvalds
341e55805d Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/powerpc:
  powerpc/83xx: Enable FIXED_PHY in mpc834x_itx and mpc83xx defconfigs
2008-12-04 21:44:03 -08:00
Rafael J. Wysocki
aaad077638 ACPI: Fix ACPI battery regression introduced by commit 558073
Commit 558073dd56 ("ACPI: battery: Convert
discharge energy rate to current properly") caused the battery subsystem
to report wrong values of the remaining time on battery power and the
time until fully charged on Toshiba Portege R500 (and presumably on
other boxes too).

Fix the issue by correcting the conversion from mW to mA.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-12-04 21:43:16 -08:00
Linus Torvalds
4857339d7c Merge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  time: catch xtime_nsec underflows and fix them
  posix-cpu-timers: fix clock_gettime with CLOCK_PROCESS_CPUTIME_ID
2008-12-04 21:40:29 -08:00
Linus Torvalds
0efcafb0fb Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sparc64: Sync FPU state in VIS emulation handler.
  sparc64: Fix VIS emulation bugs
  sparc: asm/bitops.h should define __fls
  sparc64: Fix bug in PTRACE_SETFPREGS64 handling.
2008-12-04 21:40:17 -08:00
Linus Torvalds
e948990f95 Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: fix early panic with boot option "nosmp"
  x86/oprofile: fix Intel cpu family 6 detection
  oprofile: fix CPU unplug panic in ppro_stop()
  AMD IOMMU: fix possible race while accessing iommu->need_sync
  AMD IOMMU: set device table entry for aliased devices
  AMD IOMMU: struct amd_iommu remove padding on 64 bit
  x86: fix broken flushing in GART nofullflush path
  x86: fix dma_mapping_error for 32bit x86
2008-12-04 21:40:08 -08:00
Linus Torvalds
2b218aea36 Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  sched: don't export sched_mc_power_savings in laptops
2008-12-04 21:39:55 -08:00
Linus Torvalds
3b666ce6a2 Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  check_hung_task(): unsigned sysctl_hung_task_warnings cannot be less than 0
  documentation: local_ops fix on_each_cpu
2008-12-04 21:39:41 -08:00
Linus Torvalds
56d18e9932 Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
  MIPS: Return ENOSYS from sys32_syscall on 64bit kernels like elsewhere.
  MIPS: 64-bit: vmsplice needs to use the compat wrapper for o32 and N32.
  MIPS: o32: Fix number of arguments to splice(2).
  MIPS: Malta: Consolidate platform device code.
  MIPS: IP22, Fulong, Malta: Update defconfigs.
  MIPS: Malta: Add back RTC support
  MIPS: Fix potential DOS by untrusted user app.
2008-12-04 21:39:21 -08:00
Linus Torvalds
1cb434b20d Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
* 'for-linus' of git://oss.sgi.com/xfs/xfs:
  [XFS] Fix hang after disallowed rename across directory quota domains
2008-12-04 21:38:55 -08:00
Dave Chinner
576a488a27 [XFS] Fix hang after disallowed rename across directory quota domains
When project quota is active and is being used for directory tree
quota control, we disallow rename outside the current directory
tree. This requires a check to be made after all the inodes
involved in the rename are locked. We fail to unlock the inodes
correctly if we disallow the rename when the target is outside the
current directory tree. This results in a hang on the next access
to the inodes involved in failed rename.

Reported-by: Arkadiusz Miskiewicz <arekm@maven.pl>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Tested-by: Arkadiusz Miskiewicz <arekm@maven.pl>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-12-05 15:39:13 +11:00
Anton Vorontsov
b2c2717bae powerpc/83xx: Enable FIXED_PHY in mpc834x_itx and mpc83xx defconfigs
This is needed so that Vitesse 7385 5-port switch could work on
MPC8349E-mITX boards.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-12-04 18:47:09 -06:00
David Daney
c6cb4df96f MIPS: Return ENOSYS from sys32_syscall on 64bit kernels like elsewhere.
When the o32 errno was changed to ENOSYS, we forgot to update the code
for 64bit kernels.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Acked-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-12-04 17:47:28 +00:00
Ralf Baechle
8d13cb26cd MIPS: 64-bit: vmsplice needs to use the compat wrapper for o32 and N32.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-12-04 17:47:28 +00:00
Ralf Baechle
08d30879a6 MIPS: o32: Fix number of arguments to splice(2).
The syscall code was assuming splice only takes 4 arguments so no stack
arguments were being copied from the userspace stack to the kernel stack.
As the result splice was likely to fail with EINVAL.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-12-04 17:47:28 +00:00
Ralf Baechle
566a3b9557 MIPS: Malta: Consolidate platform device code.
After adding the RTC platform device to malta-platform.c malta-mtd.c should
get unified with the rest of the platform device code.
2008-12-04 17:47:28 +00:00
Ralf Baechle
3e27cce60e MIPS: IP22, Fulong, Malta: Update defconfigs.
These haven't seen much attention for too long but particularly important
enable RTC_CLASS and CONFIG_RTC_HCTOSYS so the wall clock time is set on
kernel startup.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-12-04 17:47:28 +00:00
Tiejun Chen
192cc7f090 MIPS: Malta: Add back RTC support
With the conversion of MIPS to RTC_LIB the old RTC driver CONFIG_RTC became
unselectable.  Fix by setting up a platform device.  Also enable
RTC_CLASS so system time gets set from RTC on kernel initialization.

[Ralf: Original patch by Tiejun; polished nice and shiny by me]

Signed-off-by: Tiejun Chen <tiejun.chen@windriver.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-12-04 17:47:27 +00:00
Vlad Malov
e807f9574e MIPS: Fix potential DOS by untrusted user app.
On a 64 bit kernel if an o32 syscall was made with a syscall number less
than 4000, we would read the function from outside of the bounds of the
syscall table.  This led to non-deterministic behavior including system
crashes.

While we were at it we reworked the 32 bit version as well to use fewer
instructions.  Both 32 and 64 bit versions are use the same code now.

Signed-off-by: Vlad Malov <Vlad.Malov@caviumnetworks.com>
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-12-04 17:47:26 +00:00
Hong H. Pham
410d2c8187 sparc64: Sync FPU state in VIS emulation handler.
Copy the FPU state to the task's thread_info->fpregs for the VIS emulation
functions to access.

Signed-off-by: Hong H. Pham <hong.pham@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-04 09:12:57 -08:00
Andi Kleen
9adc13867e x86: fix early panic with boot option "nosmp"
Impact: fix boot crash with numcpus=0 on certain systems

Fix early exception in __get_smp_config with nosmp.

Bail out early when there is no MP table.

Reported-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Tested-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-12-04 16:33:51 +01:00
Al Viro
2cbed8906f [PATCH] fix bogus argument of blkdev_put() in pktcdvd
final close of ->bdev should match the initial open, i.e.
get FMODE_READ | FMODE_NDELAY; FMODE_READ|FMODE_WRITE has
been a braino.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-04 04:22:59 -05:00
Christoph Hellwig
fc9161e54d [PATCH 2/2] documnt FMODE_ constants
Make sure all FMODE_ constants are documents, and ensure a coherent
style for the already existing comments.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-04 04:22:58 -05:00
Christoph Hellwig
fd4ce1acd0 [PATCH 1/2] kill FMODE_NDELAY_NOW
Update FMODE_NDELAY before each ioctl call so that we can kill the
magic FMODE_NDELAY_NOW.  It would be even better to do this directly
in setfl(), but for that we'd need to have FMODE_NDELAY for all files,
not just block special files.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-04 04:22:57 -05:00
Christoph Hellwig
ebbefc011e [PATCH] clean up blkdev_get a little bit
The way the bd_claim for the FMODE_EXCL case is implemented is rather
confusing.  Clean it up to the most logical style.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-04 04:22:56 -05:00
Andreas Schwab
1c925604e1 [PATCH] Fix block dev compat ioctl handling
Commit 33c2dca495 (trim file propagation
in block/compat_ioctl.c) removed the handling of some ioctls from
compat_blkdev_driver_ioctl.  That caused them to be rejected as unknown
by the compat layer.

Signed-off-by: Andreas Schwab <schwab@suse.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-04 04:22:55 -05:00
Al Viro
50c396d38c [PATCH] kill obsolete temporary comment in swsusp_close()
it had been put there to mark the call of blkdev_put() that
needed proper argument propagated to it; later patch in the
same series had done just that.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-04 04:22:54 -05:00
john stultz
6c9bacb41c time: catch xtime_nsec underflows and fix them
Impact: fix time warp bug

Alex Shi, along with Yanmin Zhang have been noticing occasional time
inconsistencies recently. Through their great diagnosis, they found that
the xtime_nsec value used in update_wall_time was occasionally going
negative. After looking through the code for awhile, I realized we have
the possibility for an underflow when three conditions are met in
update_wall_time():

  1) We have accumulated a second's worth of nanoseconds, so we
     incremented xtime.tv_sec and appropriately decrement xtime_nsec.
     (This doesn't cause xtime_nsec to go negative, but it can cause it
      to be small).

  2) The remaining offset value is large, but just slightly less then
     cycle_interval.

  3) clocksource_adjust() is speeding up the clock, causing a
     corrective amount (compensating for the increase in the multiplier
     being multiplied against the unaccumulated offset value) to be
     subtracted from xtime_nsec.

This can cause xtime_nsec to underflow.

Unfortunately, since we notify the NTP subsystem via second_overflow()
whenever we accumulate a full second, and this effects the error
accumulation that has already occured, we cannot simply revert the
accumulated second from xtime nor move the second accumulation to after
the clocksource_adjust call without a change in behavior.

This leaves us with (at least) two options:

1) Simply return from clocksource_adjust() without making a change if we
   notice the adjustment would cause xtime_nsec to go negative.

This would work, but I'm concerned that if a large adjustment was needed
(due to the error being large), it may be possible to get stuck with an
ever increasing error that becomes too large to correct (since it may
always force xtime_nsec negative). This may just be paranoia on my part.

2) Catch xtime_nsec if it is negative, then add back the amount its
   negative to both xtime_nsec and the error.

This second method is consistent with how we've handled earlier rounding
issues, and also has the benefit that the error being added is always in
the oposite direction also always equal or smaller then the correction
being applied. So the risk of a corner case where things get out of
control is lessened.

This patch fixes bug 11970, as tested by Yanmin Zhang
http://bugzilla.kernel.org/show_bug.cgi?id=11970

Reported-by: alex.shi@intel.com
Signed-off-by: John Stultz <johnstul@us.ibm.com>
Acked-by: "Zhang, Yanmin" <yanmin_zhang@linux.intel.com>
Tested-by: "Zhang, Yanmin" <yanmin_zhang@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-12-04 08:43:02 +01:00
Joseph Myers
726c12f57d sparc64: Fix VIS emulation bugs
This patch fixes some bugs in VIS emulation that cause the GCC test
failure

FAIL: gcc.target/sparc/pdist-3.c execution test

for both 32-bit and 64-bit testing on hardware lacking these
instructions.  The emulation code for the pdist instruction uses
RS1(insn) for both source registers rs1 and rs2, which is obviously
wrong and leads to the instruction doing nothing (the observed
problem), and further inspection of the code shows that RS1 uses a
shift of 24 and RD a shift of 25, which clearly cannot both be right;
examining SPARC documentation indicates the correct shift for RS1 is
14.

This patch fixes the bug if single-stepping over the affected
instruction in the debugger, but not if the testcase is run
standalone.  For that, Wind River has another patch I hope they will
send as a followup to this patch submission.

Signed-off-by: Joseph Myers <joseph@codesourcery.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-03 19:36:05 -08:00
Eric Anholt
0235439232 drm/i915: Return error in i915_gem_set_to_gtt_domain if we're not in the GTT.
It's only for flushing caches appropriately for GTT access, not for actually
getting it there.  Prevents potential smashing of cpu read/write domains on
unbound objects.

Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-12-04 11:24:47 +10:00
Keith Packard
ac94a962b2 drm/i915: Retry execbuffer pinning after clearing the GTT
If we fail to pin all of the buffers in an execbuffer request, go through
and clear the GTT and try again to see if its just a matter of fragmentation

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-12-04 11:22:06 +10:00
Keith Packard
646f0f6e43 drm/i915: Move the execbuffer domain computations together
This eliminates the dev_set_domain function and just in-lines it
where its used, with the goal of moving the manipulation and use of
invalidate_domains and flush_domains closer together. This also
avoids calling add_request unless some domain has been flushed.

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-12-04 11:22:02 +10:00
Keith Packard
c0d9082928 drm/i915: Rename object_set_domain to object_set_to_gpu_domain
Now that the CPU and GTT domain operations are isolated to their own
functions, the previously general-purpose set_domain function is now used
only to set GPU domains. It also has no failure cases, which is important as
this eliminates any possible interruption of the computation of new object
domains and subsequent emmission of the flushing instructions into the ring.

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-12-04 11:21:58 +10:00
Eric Anholt
e47c68e9c5 drm/i915: Make a single set-to-cpu-domain path and use it wherever needed.
This fixes several domain management bugs, including potential lack of cache
invalidation for pread, potential failure to wait for set_domain(CPU, 0),
and more, along with producing more intelligible code.

Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-12-04 11:21:55 +10:00
Eric Anholt
2ef7eeaa55 drm/i915: Make a single set-to-gtt-domain path.
This fixes failure to flush caches in the relocation update path, and
failure to wait in the set_domain ioctl, each of which could lead to incorrect
rendering.

Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-12-04 11:21:52 +10:00
Eric Anholt
b670d81582 drm/i915: If interrupted while setting object domains, still emit the flush.
Otherwise, we would leave the objects in an inconsistent state, such as
write_domain == 0 but on the flushing list.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-12-04 11:21:48 +10:00
Eric Anholt
ce44b0ea3d drm/i915: Move flushing list cleanup from flush request retire to request emit.
obj_priv->write_domain is "write domain if the GPU went idle now", not
"write domain at this moment."  By postponing the clear, we confused the
concept, required more storage, and potentially emitted more flushes than
are required.

Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-12-04 11:21:45 +10:00