Commit Graph

308681 Commits

Author SHA1 Message Date
David S. Miller
c5389831cd sparc: Fix user_addr_max() definition.
We need to use TASK_SIZE because for 64-bit tasks the value
of STACK_TOP actually sits in the middle of the address space
so we'll get false-negatives.

Adjust the TASK_SIZE definition on sparc64 to accomodate this,
in the context in which user_addr_max() is used we have the
test_thread_flag() definition available but not the one for
test_tsk_thread_flag().

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-24 13:41:58 -07:00
Trond Myklebust
bbafffd293 NFSv4.1: Exchange ID must use GFP_NOFS allocation mode
Exchange ID can be called in a lease reclaim situation, so it
will deadlock if it then tries to write out dirty NFS pages.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-05-24 16:31:39 -04:00
Linus Torvalds
c7523a7c88 Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner.

Various trivial conflict fixups in arch Kconfig due to addition of
unrelated entries nearby.  And one slightly more subtle one for sparc32
(new user of GENERIC_CLOCKEVENTS), fixed up as per Thomas.

* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (31 commits)
  timekeeping: Fix a few minor newline issues.
  time: remove obsolete declaration
  ntp: Fix a stale comment and a few stray newlines.
  ntp: Correct TAI offset during leap second
  timers: Fixup the Kconfig consolidation fallout
  x86: Use generic time config
  unicore32: Use generic time config
  um: Use generic time config
  tile: Use generic time config
  sparc: Use: generic time config
  sh: Use generic time config
  score: Use generic time config
  s390: Use generic time config
  openrisc: Use generic time config
  powerpc: Use generic time config
  mn10300: Use generic time config
  mips: Use generic time config
  microblaze: Use generic time config
  m68k: Use generic time config
  m32r: Use generic time config
  ...
2012-05-24 13:29:46 -07:00
Weston Andros Adamson
a9e64442f1 nfs41: Use BIND_CONN_TO_SESSION for CB_PATH_DOWN*
The state manager can handle SEQ4_STATUS_CB_PATH_DOWN* flags with a
BIND_CONN_TO_SESSION instead of destroying the session and creating a new one.

Signed-off-by: Weston Andros Adamson <dros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-05-24 16:26:21 -04:00
Weston Andros Adamson
7c44f1ae4a nfs4.1: add BIND_CONN_TO_SESSION operation
This patch adds the BIND_CONN_TO_SESSION operation which is needed for
upcoming SP4_MACH_CRED work and useful for recovering from broken connections
without destroying the session.

Signed-off-by: Weston Andros Adamson <dros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-05-24 16:22:19 -04:00
Andy Adamson
d23d61c8d3 NFSv4.1 test the mdsthreshold hint parameters
Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-05-24 16:15:49 -04:00
Andy Adamson
2701d086db NFSv4.1 add nfs_inode book keeping for mdsthreshold
Keep track of the number of bytes read or written via buffered, direct, and
mem-mapped i/o for use by mdsthreshold size_io hints.

Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-05-24 16:15:48 -04:00
Andy Adamson
82be417aa3 NFSv4.1 cache mdsthreshold values on OPEN
Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-05-24 16:15:48 -04:00
Andy Adamson
88034c3d88 NFSv4.1 mdsthreshold attribute xdr
We only support one layout type per file system, so one threshold_item4 per
mdsthreshold4.

Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-05-24 16:15:47 -04:00
David S. Miller
2922585b93 lib: Sparc's strncpy_from_user is generic enough, move under lib/
To use this, an architecture simply needs to:

1) Provide a user_addr_max() implementation via asm/uaccess.h

2) Add "select GENERIC_STRNCPY_FROM_USER" to their arch Kcnfig

3) Remove the existing strncpy_from_user() implementation and symbol
   exports their architecture had.

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: David Howells <dhowells@redhat.com>
2012-05-24 13:12:28 -07:00
David S. Miller
446969084d kernel: Move REPEAT_BYTE definition into linux/kernel.h
And make sure that everything using it explicitly includes
that header file.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-24 13:10:05 -07:00
David S. Miller
35c9646062 sparc: Increase portability of strncpy_from_user() implementation.
Hide details of maximum user address calculation in a new
asm/uaccess.h interface named user_addr_max().

Provide little-endian implementation in find_zero(), which should work
but can probably be improved.

Abstrace alignment check behind IS_UNALIGNED() macro.

Kill double-semicolon, noticed by David Howells.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-24 13:04:24 -07:00
Linus Torvalds
2f78d8e249 IEEE 1394 (FireWire) subsystem updates post v3.4:
- Fix mismatch between DMA mapping direction (was wrong) and DMA synchronization
     direction (was correct) of isochronous reception buffers of userspace drivers
     if vma-mapped for R/W access.  For example, libdc1394 was affected.
 
   - more consistent retry stategy in device discovery/ rediscovery, and improved
     failure diagnostics
 
   - various small cleanups, e.g. use SCSI layer's DMA mapping API in firewire-sbp2
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Merge tag 'firewire-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394

Pull IEEE 1394 (FireWire) subsystem updates from Stefan Richter:

 - Fix mismatch between DMA mapping direction (was wrong) and DMA
   synchronization direction (was correct) of isochronous reception
   buffers of userspace drivers if vma-mapped for R/W access.  For
   example, libdc1394 was affected.

 - more consistent retry stategy in device discovery/ rediscovery, and
   improved failure diagnostics

 - various small cleanups, e.g. use SCSI layer's DMA mapping API in
   firewire-sbp2

* tag 'firewire-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
  firewire: sbp2: document the absence of alignment requirements
  firewire: sbp2: remove superfluous blk_queue_max_segment_size() call
  firewire: sbp2: use scsi_dma_(un)map
  firewire: sbp2: give correct DMA device to scsi framework
  firewire: core: fw_device_refresh(): clean up error handling
  firewire: core: log config rom reading errors
  firewire: core: log error in case of failed bus manager lock
  firewire: move rcode_string() to core
  firewire: core: improve reread_config_rom() interface
  firewire: core: wait for inaccessible devices after bus reset
  firewire: ohci: omit spinlock IRQ flags where possible
  firewire: ohci: correct signedness of a local variable
  firewire: core: fix DMA mapping direction
  firewire: use module_pci_driver
2012-05-24 12:57:47 -07:00
Linus Torvalds
f2fde3a65e Merge branch 'drm-core-next' of git://people.freedesktop.org/~airlied/linux
Pull main drm updates from Dave Airlie:
 "This is the main merge window request for the drm.

  It's big, but jam packed will lots of features and of course 0
  regressions.  (okay maybe there'll be one).

  Highlights:

   - new KMS drivers for server GPU chipsets: ast, mgag200 and cirrus
     (qemu only).  These drivers use the generic modesetting drivers.

   - initial prime/dma-buf support for i915, nouveau, radeon, udl and
     exynos

   - switcheroo audio support: so GPUs with HDMI can turn off the sound
     driver without crashing stuff.

   - There are some patches drifting outside drivers/gpu into x86 and
     EFI for better handling of multiple video adapters in Apple Macs,
     they've got correct acks except one trivial fixup.

   - Core:
	edid parser has better DMT and reduced blanking support,
	crtc properties,
	plane properties,

   - Drivers:
	exynos: add 2D core accel support, prime support, hdmi features
	intel: more Haswell support, initial Valleyview support, more
	    hdmi infoframe fixes, update MAINTAINERS for Daniel, lots of
	    cleanups and fixes
	radeon: more HDMI audio support, improved GPU lockup recovery
	    support, remove nested mutexes, less memory copying on PCIE, fix
	    bus master enable race (kexec), improved fence handling
	gma500: cleanups, 1080p support, acpi fixes
	nouveau: better nva3 memory reclocking, kepler accel (needs
	    external firmware rip), async buffer moves on nv84+ hw.

  I've some more dma-buf patches that rely on the dma-buf merge for vmap
  stuff, and I've a few fixes building up, but I'd decided I'd better
  get rid of the main pull sooner rather than later, so the audio guys
  are also unblocked."

Fix up trivial conflict due to some duplicated changes in
drivers/gpu/drm/i915/intel_ringbuffer.c

* 'drm-core-next' of git://people.freedesktop.org/~airlied/linux: (605 commits)
  drm/nouveau/nvd9: Fix GPIO initialisation sequence.
  drm/nouveau: Unregister switcheroo client on exit
  drm/nouveau: Check dsm on switcheroo unregister
  drm/nouveau: fix a minor annoyance in an output string
  drm/nouveau: turn a BUG into a WARN
  drm/nv50: decode PGRAPH DATA_ERROR = 0x24
  drm/nouveau/disp: fix dithering not being enabled on some eDP macbooks
  drm/nvd9/copy: initialise copy engine, seems to work like nvc0
  drm/nvc0/ttm: use copy engines for async buffer moves
  drm/nva3/ttm: use copy engine for async buffer moves
  drm/nv98/ttm: add in a (disabled) crypto engine buffer copy method
  drm/nv84/ttm: use crypto engine for async buffer copies
  drm/nouveau/ttm: untangle code to support accelerated buffer moves
  drm/nouveau/fbcon: use fence for sync, rather than notifier
  drm/nv98/crypt: non-stub implementation of the engine hooks
  drm/nouveau/fifo: turn all fifo modules into engine modules
  drm/nv50/graph: remove ability to do interrupt-driven context switching
  drm/nv50: remove manual context unload on context destruction
  drm/nv50: remove execution engine context saves on suspend
  drm/nv50/fifo: use hardware channel kickoff functionality
  ...
2012-05-24 12:42:54 -07:00
Linus Torvalds
28f3d71761 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull more networking updates from David Miller:
 "Ok, everything from here on out will be bug fixes."

1) One final sync of wireless and bluetooth stuff from John Linville.
   These changes have all been in his tree for more than a week, and
   therefore have had the necessary -next exposure.  John was just away
   on a trip and didn't have a change to send the pull request until a
   day or two ago.

2) Put back some defines in user exposed header file areas that were
   removed during the tokenring purge.  From Stephen Hemminger and Paul
   Gortmaker.

3) A bug fix for UDP hash table allocation got lost in the pile due to
   one of those "you got it..  no I've got it.." situations.  :-)

   From Tim Bird.

4) SKB coalescing in TCP needs to have stricter checks, otherwise we'll
   try to coalesce overlapping frags and crash.  Fix from Eric Dumazet.

5) RCU routing table lookups can race with free_fib_info(), causing
   crashes when we deref the device pointers in the route.  Fix by
   releasing the net device in the RCU callback.  From Yanmin Zhang.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (293 commits)
  tcp: take care of overlaps in tcp_try_coalesce()
  ipv4: fix the rcu race between free_fib_info and ip_route_output_slow
  mm: add a low limit to alloc_large_system_hash
  ipx: restore token ring define to include/linux/ipx.h
  if: restore token ring ARP type to header
  xen: do not disable netfront in dom0
  phy/micrel: Fix ID of KSZ9021
  mISDN: Add X-Tensions USB ISDN TA XC-525
  gianfar:don't add FCB length to hard_header_len
  Bluetooth: Report proper error number in disconnection
  Bluetooth: Create flags for bt_sk()
  Bluetooth: report the right security level in getsockopt
  Bluetooth: Lock the L2CAP channel when sending
  Bluetooth: Restore locking semantics when looking up L2CAP channels
  Bluetooth: Fix a redundant and problematic incoming MTU check
  Bluetooth: Add support for Foxconn/Hon Hai AR5BBU22 0489:E03C
  Bluetooth: Fix EIR data generation for mgmt_device_found
  Bluetooth: Fix Inquiry with RSSI event mask
  Bluetooth: improve readability of l2cap_seq_list code
  Bluetooth: Fix skb length calculation
  ...
2012-05-24 11:54:29 -07:00
Linus Torvalds
654443e20d Merge branch 'perf-uprobes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull user-space probe instrumentation from Ingo Molnar:
 "The uprobes code originates from SystemTap and has been used for years
  in Fedora and RHEL kernels.  This version is much rewritten, reviews
  from PeterZ, Oleg and myself shaped the end result.

  This tree includes uprobes support in 'perf probe' - but SystemTap
  (and other tools) can take advantage of user probe points as well.

  Sample usage of uprobes via perf, for example to profile malloc()
  calls without modifying user-space binaries.

  First boot a new kernel with CONFIG_UPROBE_EVENT=y enabled.

  If you don't know which function you want to probe you can pick one
  from 'perf top' or can get a list all functions that can be probed
  within libc (binaries can be specified as well):

	$ perf probe -F -x /lib/libc.so.6

  To probe libc's malloc():

	$ perf probe -x /lib64/libc.so.6 malloc
	Added new event:
	probe_libc:malloc    (on 0x7eac0)

  You can now use it in all perf tools, such as:

	perf record -e probe_libc:malloc -aR sleep 1

  Make use of it to create a call graph (as the flat profile is going to
  look very boring):

	$ perf record -e probe_libc:malloc -gR make
	[ perf record: Woken up 173 times to write data ]
	[ perf record: Captured and wrote 44.190 MB perf.data (~1930712

	$ perf report | less

	  32.03%            git  libc-2.15.so   [.] malloc
	                    |
	                    --- malloc

	  29.49%            cc1  libc-2.15.so   [.] malloc
	                    |
	                    --- malloc
	                       |
	                       |--0.95%-- 0x208eb1000000000
	                       |
	                       |--0.63%-- htab_traverse_noresize

	  11.04%             as  libc-2.15.so   [.] malloc
	                     |
	                     --- malloc
	                        |

	   7.15%             ld  libc-2.15.so   [.] malloc
	                     |
	                     --- malloc
	                        |

	   5.07%             sh  libc-2.15.so   [.] malloc
	                     |
	                     --- malloc
	                        |
	   4.99%  python-config  libc-2.15.so   [.] malloc
	          |
	          --- malloc
	             |
	   4.54%           make  libc-2.15.so   [.] malloc
	                   |
	                   --- malloc
	                      |
	                      |--7.34%-- glob
	                      |          |
	                      |          |--93.18%-- 0x41588f
	                      |          |
	                      |           --6.82%-- glob
	                      |                     0x41588f

	   ...

  Or:

	$ perf report -g flat | less

	# Overhead        Command  Shared Object      Symbol
	# ........  .............  .............  ..........
	#
	  32.03%            git  libc-2.15.so   [.] malloc
	          27.19%
	              malloc

	  29.49%            cc1  libc-2.15.so   [.] malloc
	          24.77%
	              malloc

	  11.04%             as  libc-2.15.so   [.] malloc
	          11.02%
	              malloc

	   7.15%             ld  libc-2.15.so   [.] malloc
	           6.57%
	              malloc

	 ...

  The core uprobes design is fairly straightforward: uprobes probe
  points register themselves at (inode:offset) addresses of
  libraries/binaries, after which all existing (or new) vmas that map
  that address will have a software breakpoint injected at that address.
  vmas are COW-ed to preserve original content.  The probe points are
  kept in an rbtree.

  If user-space executes the probed inode:offset instruction address
  then an event is generated which can be recovered from the regular
  perf event channels and mmap-ed ring-buffer.

  Multiple probes at the same address are supported, they create a
  dynamic callback list of event consumers.

  The basic model is further complicated by the XOL speedup: the
  original instruction that is probed is copied (in an architecture
  specific fashion) and executed out of line when the probe triggers.
  The XOL area is a single vma per process, with a fixed number of
  entries (which limits probe execution parallelism).

  The API: uprobes are installed/removed via
  /sys/kernel/debug/tracing/uprobe_events, the API is integrated to
  align with the kprobes interface as much as possible, but is separate
  to it.

  Injecting a probe point is privileged operation, which can be relaxed
  by setting perf_paranoid to -1.

  You can use multiple probes as well and mix them with kprobes and
  regular PMU events or tracepoints, when instrumenting a task."

Fix up trivial conflicts in mm/memory.c due to previous cleanup of
unmap_single_vma().

* 'perf-uprobes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits)
  perf probe: Detect probe target when m/x options are absent
  perf probe: Provide perf interface for uprobes
  tracing: Fix kconfig warning due to a typo
  tracing: Provide trace events interface for uprobes
  tracing: Extract out common code for kprobes/uprobes trace events
  tracing: Modify is_delete, is_return from int to bool
  uprobes/core: Decrement uprobe count before the pages are unmapped
  uprobes/core: Make background page replacement logic account for rss_stat counters
  uprobes/core: Optimize probe hits with the help of a counter
  uprobes/core: Allocate XOL slots for uprobes use
  uprobes/core: Handle breakpoint and singlestep exceptions
  uprobes/core: Rename bkpt to swbp
  uprobes/core: Make order of function parameters consistent across functions
  uprobes/core: Make macro names consistent
  uprobes: Update copyright notices
  uprobes/core: Move insn to arch specific structure
  uprobes/core: Remove uprobe_opcode_sz
  uprobes/core: Make instruction tables volatile
  uprobes: Move to kernel/events/
  uprobes/core: Clean up, refactor and improve the code
  ...
2012-05-24 11:39:34 -07:00
Michael Cree
25534eb770 alpha: add io{read,write}{16,32}be functions
These functions are used in some PCI drivers with big-endian
MMIO space.

Admittedly it is almost certain that no one this side of the
Moon would use such a card in an Alpha but it does get us
closer to being able to build allyesconfig or allmodconfig,
and it enables the Debian default generic config to build.

Tested-by: Raúl Porcel <armin76@gentoo.org>
Signed-off-by: Michael Cree <mcree@orcon.net.nz>
Signed-off-by: Matt Turner <mattst88@gmail.com>
2012-05-24 14:27:59 -04:00
Mans Rullgard
7a8bb98ca9 alpha: implement various OSF/1 stat syscalls
This implements OSF/1 versions of stat, lstat, fstat, statfs64,
and fstatfs64 syscalls.

Signed-off-by: Mans Rullgard <mans@mansr.com>
Signed-off-by: Matt Turner <mattst88@gmail.com>
2012-05-24 14:27:57 -04:00
Mans Rullgard
50744dee01 alpha: implement setsysinfo(SSI_LMF) as a no-op
This allows running software using the Tru64 license manager.
For simplicity, no check for a valid license is done.  This
should not be seen as encouraging software piracy.

Signed-off-by: Mans Rullgard <mans@mansr.com>
Signed-off-by: Matt Turner <mattst88@gmail.com>
2012-05-24 14:27:55 -04:00
Linus Torvalds
2c01e7bc46 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input layer updates from Dmitry Torokhov:
 - a bunch of new drivers (DA9052/53 touchscreenn controller, Synaptics
   Navpoint, LM8333 keypads, Wacom I2C touhscreen);
 - updates to existing touchpad drivers (ALPS, Sntelic);
 - Wacom driver now supports Intuos5;
 - device-tree bindings in numerous drivers;
 - other cleanups and fixes.

Fix annoying conflict in drivers/input/tablet/wacom_wac.c that I think
implies that the input layer device naming is broken, but let's see.  I
brough it up with Dmitry.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (57 commits)
  Input: matrix-keymap - fix building keymaps
  Input: spear-keyboard - document DT bindings
  Input: spear-keyboard - add device tree bindings
  Input: matrix-keymap - wire up device tree support
  Input: matrix-keymap - uninline and prepare for device tree support
  Input: adp5588 - add support for gpio names
  Input: omap-keypad - dynamically handle register offsets
  Input: synaptics - fix compile warning
  MAINTAINERS: adjust input-related patterns
  Input: ALPS - switch to using input_mt_report_finger_count
  Input: ALPS - add semi-MT support for v4 protocol
  Input: Add Synaptics NavPoint (PXA27x SSP/SPI) driver
  Input: atmel_mxt_ts - dump each message on just 1 line
  Input: atmel_mxt_ts - do not read extra (checksum) byte
  Input: atmel_mxt_ts - verify object size in mxt_write_object
  Input: atmel_mxt_ts - only allow root to update firmware
  Input: atmel_mxt_ts - use CONFIG_PM_SLEEP
  Input: sentelic - report device's production serial number
  Input: tl6040-vibra - Device Tree support
  Input: evdev - properly handle read/write with count 0
  ...
2012-05-24 10:34:29 -07:00
Linus Torvalds
ab11ca34ee Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
 - some V4L2 API updates needed by embedded devices
 - DVB API extensions for ATSC-MH delivery system, used in US for mobile
   TV
 - new tuners for fc0011/0012/0013 and tua9001
 - a new dvb driver for af9033/9035
 - a new ATSC-MH frontend (lg2160)
 - new remote controller keymaps
 - Removal of a few legacy webcam driver that got replaced by gspca on
   several kernel versions ago
 - a new driver for Exynos 4/5 webcams(s5pp fimc-lite)
 - a new webcam sensor driver (smiapp)
 - a new video input driver for embedded (sta2x1xx)
 - several improvements, fixes, cleanups, etc inside the drivers.

Manually fix up conflicts due to err() -> dev_err() conversion in
drivers/staging/media/easycap/easycap_main.c

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (484 commits)
  [media] saa7134-cards: Remove a PCI entry added by mistake
  [media] radio-sf16fmi: add support for SF16-FMD
  [media] rc-loopback: remove duplicate line
  [media] patch for Asus My Cinema PS3-100 (1043:48cd)
  [media] au0828: Move the Kconfig knob under V4L_USB_DRIVERS
  [media] em28xx: simple comment fix
  [media] [resend] radio-sf16fmr2: add PnP support for SF16-FMD2
  [media] smiapp: Use v4l2_ctrl_new_int_menu() instead of v4l2_ctrl_new_custom()
  [media] smiapp: Add support for 8-bit uncompressed formats
  [media] smiapp: Allow generic quirk registers
  [media] smiapp: Use non-binning limits if the binning limit is zero
  [media] smiapp: Initialise rval in smiapp_read_nvm()
  [media] smiapp: Round minimum pre_pll up rather than down in ip_clk_freq check
  [media] smiapp: Use 8-bit reads only before identifying the sensor
  [media] smiapp: Quirk for sensors that only do 8-bit reads
  [media] smiapp: Pass struct sensor to register writing commands instead of i2c_client
  [media] smiapp: Allow using external clock from the clock framework
  [media] zl10353: change .read_snr() to report SNR as a 0.1 dB
  [media] media: add support to gspca/pac7302.c for 093a:2627 (Genius FaceCam 300)
  [media] m88rs2000 - only flip bit 2 on reg 0x70 on 16th try
  ...
2012-05-24 10:21:51 -07:00
H. Peter Anvin
ea17e7414b x86, relocs: Add jiffies and jiffies_64 to the relative whitelist
The symbol jiffies is created in the linker script as an alias to
jiffies_64.  Unfortunately this is done outside any section, and
apparently GNU ld 2.21 doesn't carry the section with it, so we end up
with an absolute symbol and therefore a broken kernel.

Add jiffies and jiffies_64 to the whitelist.

The most disturbing bit with this discovery is that it shows that we
have had multiple linker bugs in this area crossing multiple
generations, and have been silently building bad kernels for some time.

Link: http://lkml.kernel.org/r/20120524171604.0d98284f3affc643e9714470@canb.auug.org.au
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: <stable@vger.kernel.org> v3.4
2012-05-24 07:16:18 -07:00
Dave Airlie
8c914028f5 Merge branch 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-core-next
Ben was distracted:

"Apologies for being really late with this, feel free to bash me in the
future so I remember on time!

Overview:
- improvements to reclocking (especially memory) on nva3+
- kepler accel support (if you have blob ucode)
- better inter-channel synchronisation on nv84+
- async ttm buffer moves on nv84+ (earlier cards don't have a non-PGRAPH
engine that's useful)"

* 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6: (60 commits)
  drm/nouveau/nvd9: Fix GPIO initialisation sequence.
  drm/nouveau: Unregister switcheroo client on exit
  drm/nouveau: Check dsm on switcheroo unregister
  drm/nouveau: fix a minor annoyance in an output string
  drm/nouveau: turn a BUG into a WARN
  drm/nv50: decode PGRAPH DATA_ERROR = 0x24
  drm/nouveau/disp: fix dithering not being enabled on some eDP macbooks
  drm/nvd9/copy: initialise copy engine, seems to work like nvc0
  drm/nvc0/ttm: use copy engines for async buffer moves
  drm/nva3/ttm: use copy engine for async buffer moves
  drm/nv98/ttm: add in a (disabled) crypto engine buffer copy method
  drm/nv84/ttm: use crypto engine for async buffer copies
  drm/nouveau/ttm: untangle code to support accelerated buffer moves
  drm/nouveau/fbcon: use fence for sync, rather than notifier
  drm/nv98/crypt: non-stub implementation of the engine hooks
  drm/nouveau/fifo: turn all fifo modules into engine modules
  drm/nv50/graph: remove ability to do interrupt-driven context switching
  drm/nv50: remove manual context unload on context destruction
  drm/nv50: remove execution engine context saves on suspend
  drm/nv50/fifo: use hardware channel kickoff functionality
  ...
2012-05-24 10:55:34 +01:00
Dmitry Torokhov
e644dae645 Merge branch 'next' into for-linus 2012-05-24 01:13:01 -07:00
Dmitry Torokhov
86809173ce Input: matrix-keymap - fix building keymaps
Keymaps used by drivers based on matrix-keymap facilities are arrays of
unsigned shorts, not chars. Treating them otherwise produces corrupted
keymaps.

Reported-by: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2012-05-24 01:12:20 -07:00
Marcin Kościelnicki
af3289e963 drm/nouveau/nvd9: Fix GPIO initialisation sequence.
Signed-off-by: Marcin Kościelnicki <koriakin@0x04.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:56:37 +10:00
Andreas Heider
5c5ed6e2cd drm/nouveau: Unregister switcheroo client on exit
Currently nouveau only registers as a vga_switcheroo client, but never
unregisters. This patch adds the necessary unregister calls.

Signed-off-by: Andreas Heider <andreas@meetr.de>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:56:36 +10:00
Andreas Heider
2f3787aa43 drm/nouveau: Check dsm on switcheroo unregister
Currently vga_switcheroo_unregister_handler is called unconditionally when
nouveau is unloaded, even when nouveau never registered a handler. This
interferes with other switcheroo handlers, as vga_switcheroo doesn't check who
called unregister_handler, but simply unregisters the current handler. This
patch adds a check so unregister is only called if a handler was registered by
nouveau before.

Signed-off-by: Andreas Heider <andreas@meetr.de>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:56:34 +10:00
Ben Skeggs
42eddbd7b2 drm/nouveau: fix a minor annoyance in an output string
Bugs me every time I put in the TNT2..

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:56:32 +10:00
Ben Skeggs
6e5a429bcb drm/nouveau: turn a BUG into a WARN
This is very annoying sometimes..

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:56:29 +10:00
Marcin Slusarz
547e6c7fc8 drm/nv50: decode PGRAPH DATA_ERROR = 0x24
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:56:27 +10:00
Ben Skeggs
a6a17859f1 drm/nouveau/disp: fix dithering not being enabled on some eDP macbooks
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:56:26 +10:00
Ben Skeggs
0c75f332e5 drm/nvd9/copy: initialise copy engine, seems to work like nvc0
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:56:24 +10:00
Ben Skeggs
1a46098e91 drm/nvc0/ttm: use copy engines for async buffer moves
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:56:23 +10:00
Ben Skeggs
fdf53241c1 drm/nva3/ttm: use copy engine for async buffer moves
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:56:21 +10:00
Ben Skeggs
5490e5dfb9 drm/nv98/ttm: add in a (disabled) crypto engine buffer copy method
Disabled for the moment until some performance issues are sorted out, code
committed as a reference point.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:56:19 +10:00
Ben Skeggs
4c193d254e drm/nv84/ttm: use crypto engine for async buffer copies
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:56:18 +10:00
Ben Skeggs
d1b167e168 drm/nouveau/ttm: untangle code to support accelerated buffer moves
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:56:16 +10:00
Ben Skeggs
78df3a1c58 drm/nouveau/fbcon: use fence for sync, rather than notifier
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:56:15 +10:00
Ben Skeggs
b355096992 drm/nv98/crypt: non-stub implementation of the engine hooks
fuc is from pscnv driver.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:56:13 +10:00
Ben Skeggs
c420b2dc8d drm/nouveau/fifo: turn all fifo modules into engine modules
Been tested on each major revision that's relevant here, but I'm sure there
are still bugs waiting to be ironed out.

This is a *very* invasive change.

There's a couple of pieces left that I don't like much (eg. other engines
using fifo_priv for the channel count), but that's an artefact of there
being a master channel list still.  This is changing, slowly.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:56:11 +10:00
Ben Skeggs
a226c32a38 drm/nv50/graph: remove ability to do interrupt-driven context switching
We never turn this on, no point maintaining the code for it..

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:56:10 +10:00
Ben Skeggs
5511d490da drm/nv50: remove manual context unload on context destruction
PFIFO context destruction triggers this automagically now.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:56:08 +10:00
Ben Skeggs
7f2062e9de drm/nv50: remove execution engine context saves on suspend
Now triggered automagically by the GPU on PFIFO takedown.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:56:07 +10:00
Ben Skeggs
03bd6efa14 drm/nv50/fifo: use hardware channel kickoff functionality
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:56:05 +10:00
Ben Skeggs
71af5e62db drm/nv50/gr: make sure NEXT_TO_CURRENT is executed even if nothing done
PFIFO channel kickoff will hang sometimes otherwise.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:56:03 +10:00
Ben Skeggs
694931d20f drm/nv50/fifo: construct playlist from hw context table state
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:56:02 +10:00
Ben Skeggs
67b342efc7 drm/nouveau/fifo: remove all the "special" engine hooks
All the places this stuff is actually needed tends to be chipset-specific
anyway, so we're able to just inline the register bashing instead.

The parts of the common code that still directly touch PFIFO temporarily
have conditionals, these will be removed in subsequent commits that will
refactor the fifo modules into engine modules like graph/mpeg etc.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:56:00 +10:00
Ben Skeggs
906c033e27 drm/nouveau/fence: fix a race where fence->channel can disappear
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:55:58 +10:00
Ben Skeggs
299bee10fb drm/nouveau/bios: fix some shadowing issues, particularly acpi
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-05-24 16:55:56 +10:00