agp_chipset_flush() is for flushing the intel GMCH write cache via the
IFP, these two uses are for when we're getting the object into the cpu
READ domain, and thus should not be needed. This confused me when I was
getting my head around the code.

With thanks to airlied for helping me check my mental picture of how the
flushes and clflushes are supposed to be used.
Signed-off-by: NOwain G. Ainsworth <oga@openbsd.org>
Signed-off-by: NEric Anholt <eric@anholt.net>

Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: NEric Anholt <eric@anholt.net>

This was inspired by a patch by Chris Wilson, though none of it applied in any
way due to the debugfs work and I decided to change the formatting of the
new information anyway.
Signed-off-by: NEric Anholt <eric@anholt.net>

Here we eliminate a few functions in favor of using a single function
to dump from all of the object lists.
Signed-Off-By: NBen Gamari <bgamari@gmail.com>
Signed-off-by: NEric Anholt <eric@anholt.net>

Signed-off-by: NBen Gamari <bgamari@gmail.com>
Signed-off-by: NEric Anholt <eric@anholt.net>

The old mechanism to formatting proc files is extremely ugly. The
seq_file API was designed specifically for cases like this and greatly
simplifies the process.

Also, most of the files in /proc really don't belong there. This patch
introduces the infrastructure for putting these into debugfs and exposes
all of the proc files in debugfs as well.
Signed-off-by: NBen Gamari <bgamari@gmail.com>
Signed-off-by: NEric Anholt <eric@anholt.net>

Signed-off-by: NEric Anholt <eric@anholt.net>
Reviewed-by: NKeith Packard <keithp@keithp.com>

This introduces allocation in the batch submission path that wasn't there
previously, but these are compatibility paths so we care about simplicity
more than performance.

kernel.org bug #12419.
Signed-off-by: NEric Anholt <eric@anholt.net>
Reviewed-by: NKeith Packard <keithp@keithp.com>
Acked-by: NJesse Barnes <jbarnes@virtuousgeek.org>

Signed-off-by: NEric Anholt <eric@anholt.net>
Reviewed-by: NJesse Barnes <jbarnes@virtuousgeek.org>

Like the GTT pwrite path fix, this uses an optimistic path and a
fallback to get_user_pages.  Note that this means we have to stop using
vfs_write and roll it ourselves.
Signed-off-by: NEric Anholt <eric@anholt.net>
Reviewed-by: NJesse Barnes <jbarnes@virtuousgeek.org>

We've wanted this for a few consumers that touch the pages directly (such as
the following commit), which have been doing the refcounting outside of
get/put pages.
Signed-off-by: NEric Anholt <eric@anholt.net>
Reviewed-by: NJesse Barnes <jbarnes@virtuousgeek.org>

Since the pagefault path determines that the lock order we use has to be
mmap_sem -> struct_mutex, we can't allow page faults to occur while the
struct_mutex is held.  To fix this in pwrite, we first try optimistically to
see if we can copy from user without faulting.  If it fails, fall back to
using get_user_pages to pin the user's memory, and map those pages
atomically when copying it to the GPU.
Signed-off-by: NEric Anholt <eric@anholt.net>
Reviewed-by: NJesse Barnes <jbarnes@virtuousgeek.org>

This fixes incorrect detection of the second SDVO/HDMI output on G4X, and
extra boot time on pre-G4X.
Signed-off-by: NKristian Høgsberg <krh@redhat.com>
Signed-off-by: NEric Anholt <eric@anholt.net>

This improves the PLL timings according to the suggestion of the hardware
engineers.  This results in some outputs being able to sync that weren't
able to before.

This is part of fixing fd.o bug #17508.
Signed-off-by: NMa Ling <ling.ma@intel.com>
[anholt: cleaned up a couple of redundant comments]
Signed-off-by: NEric Anholt <eric@anholt.net>

The values come from the internal reference spreadsheet on PLL
timing limits for the G4X chipsets.

Part of fixing fd.o bug #17508
Signed-off-by: NMa Ling <ling.ma@intel.com>
[anholt: Cleaned up some whitespace]
Signed-off-by: NEric Anholt <eric@anholt.net>

Later spec investigation has revealed that every 9xx mobile part has
had this register in this format.  Also, no non-mobile parts have been shown
to have this register.  So make all mobile use the same code, and all
non-mobile use the hack 965 detection.
Signed-off-by: NEric Anholt <eric@anholt.net>

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6:
  slob: fix lockup in slob_free()
  slub: use get_track()
  slub: rename calculate_min_partial() to set_min_partial()
  slub: add min_partial sysfs tunable
  slub: move min_partial to struct kmem_cache
  SLUB: Fix default slab order for big object sizes
  SLUB: Do not pass 8k objects through to the page allocator
  SLUB: Introduce and use SLUB_MAX_SIZE and SLUB_PAGE_SHIFT constants
  slob: clean up the code
  SLUB: Use ->objsize from struct kmem_cache_cpu in slab_free()

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: irq_node.handler() should return irqreturn_t
  m68k: section mismatch fixes: Atari SCSI
  m68k: section mismatch fixes: DMAsound for Atari
  MAINTAINERS: Replace dead link to m68k CVS repository by link to new git repository
  m68k: mac - Add SWIM floppy support
  m68k: mac - Add a new entry in mac_model to identify the floppy controller type.
  m68k: Add install target

* 'bkl-removal' of git://git.lwn.net/linux-2.6:
  Rationalize fasync return values
  Move FASYNC bit handling to f_op->fasync()
  Use f_lock to protect f_flags
  Rename struct file->f_ep_lock

Merge branch 'header-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'header-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (50 commits)
  x86: headers cleanup - setup.h
  emu101k1.h: fix duplicate include of <linux/types.h>
  compiler-gcc4: conditionalize #error on __KERNEL__
  remove __KERNEL_STRICT_NAMES
  make netfilter use strict integer types
  make drm headers use strict integer types
  make MTD headers use strict integer types
  make most exported headers use strict integer types
  make exported headers use strict posix types
  unconditionally include asm/types.h from linux/types.h
  make linux/types.h as assembly safe
  Neither asm/types.h nor linux/types.h is required for arch/ia64/include/asm/fpu.h
  headers_check fix cleanup: linux/reiserfs_fs.h
  headers_check fix cleanup: linux/nubus.h
  headers_check fix cleanup: linux/coda_psdev.h
  headers_check fix: x86, setup.h
  headers_check fix: x86, prctl.h
  headers_check fix: linux/reinserfs_fs.h
  headers_check fix: linux/socket.h
  headers_check fix: linux/nubus.h
  ...

Manually fix trivial conflicts in:
	include/linux/netfilter/xt_limit.h
	include/linux/netfilter/xt_statistic.h

* 'irq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (32 commits)
  x86: disable __do_IRQ support
  sparseirq, powerpc/cell: fix unused variable warning in interrupt.c
  genirq: deprecate obsolete typedefs and defines
  genirq: deprecate __do_IRQ
  genirq: add doc to struct irqaction
  genirq: use kzalloc instead of explicit zero initialization
  genirq: make irqreturn_t an enum
  genirq: remove redundant if condition
  genirq: remove unused hw_irq_controller typedef
  irq: export remove_irq() and setup_irq() symbols
  irq: match remove_irq() args with setup_irq()
  irq: add remove_irq() for freeing of setup_irq() irqs
  genirq: assert that irq handlers are indeed running in hardirq context
  irq: name 'p' variables a bit better
  irq: further clean up the free_irq() code flow
  irq: refactor and clean up the free_irq() code flow
  irq: clean up manage.c
  irq: use GFP_KERNEL for action allocation in request_irq()
  kernel/irq: fix sparse warning: make symbol static
  irq: optimize init_kstat_irqs/init_copy_kstat_irqs
  ...

* 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (26 commits)
  posix timers: fix RLIMIT_CPU && fork()
  time: ntp: fix bug in ntp_update_offset() & do_adjtimex(), fix
  time: ntp: clean up second_overflow()
  time: ntp: simplify ntp_tick_adj calculations
  time: ntp: make 64-bit constants more robust
  time: ntp: refactor do_adjtimex() some more
  time: ntp: refactor do_adjtimex()
  time: ntp: fix bug in ntp_update_offset() & do_adjtimex()
  time: ntp: micro-optimize ntp_update_offset()
  time: ntp: simplify ntp_update_offset_fll()
  time: ntp: refactor and clean up ntp_update_offset()
  time: ntp: refactor up ntp_update_frequency()
  time: ntp: clean up ntp_update_frequency()
  time: ntp: simplify the MAX_TICKADJ_SCALED definition
  time: ntp: simplify the second_overflow() code flow
  time: ntp: clean up kernel/time/ntp.c
  x86: hpet: stop HPET_COUNTER when programming periodic mode
  x86: hpet: provide separate functions to stop and start the counter
  x86: hpet: print HPET registers during setup (if hpet=verbose is used)
  time: apply NTP frequency/tick changes immediately
  ...

* 'sched-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (46 commits)
  sched: Add comments to find_busiest_group() function
  sched: Refactor the power savings balance code
  sched: Optimize the !power_savings_balance during fbg()
  sched: Create a helper function to calculate imbalance
  sched: Create helper to calculate small_imbalance in fbg()
  sched: Create a helper function to calculate sched_domain stats for fbg()
  sched: Define structure to store the sched_domain statistics for fbg()
  sched: Create a helper function to calculate sched_group stats for fbg()
  sched: Define structure to store the sched_group statistics for fbg()
  sched: Fix indentations in find_busiest_group() using gotos
  sched: Simple helper functions for find_busiest_group()
  sched: remove unused fields from struct rq
  sched: jiffies not printed per CPU
  sched: small optimisation of can_migrate_task()
  sched: fix typos in documentation
  sched: add avg_overlap decay
  x86, sched_clock(): mark variables read-mostly
  sched: optimize ttwu vs group scheduling
  sched: TIF_NEED_RESCHED -> need_reshed() cleanup
  sched: don't rebalance if attached on NULL domain
  ...

* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: (81 commits)
  [S390] remove duplicated #includes
  [S390] cpumask: use mm_cpumask() wrapper
  [S390] cpumask: Use accessors code.
  [S390] cpumask: prepare for iterators to only go to nr_cpu_ids/nr_cpumask_bits.
  [S390] cpumask: remove cpu_coregroup_map
  [S390] fix clock comparator save area usage
  [S390] Add hwcap flag for the etf3 enhancement facility
  [S390] Ensure that ipl panic notifier is called late.
  [S390] fix dfp elf hwcap/facility bit detection
  [S390] smp: perform initial cpu reset before starting a cpu
  [S390] smp: fix memory leak on __cpu_up
  [S390] ipl: Improve checking logic and remove switch defaults.
  [S390] s390dbf: Remove needless check for NULL pointer.
  [S390] s390dbf: Remove redundant initilizations.
  [S390] use kzfree()
  [S390] BUG to BUG_ON changes
  [S390] zfcpdump: Prevent zcore from beeing built as a kernel module.
  [S390] Use csum_partial in checksum.h
  [S390] cleanup lowcore.h
  [S390] eliminate ipl_device from lowcore
  ...

* 'for-2.6.30' of git://git.kernel.dk/linux-2.6-block:
  Get rid of pdflush_operation() in emergency sync and remount
  btrfs: get rid of current_is_pdflush() in btrfs_btree_balance_dirty
  Move the default_backing_dev_info out of readahead.c and into backing-dev.c
  block: Repeated lines in switching-sched.txt
  bsg: Remove bogus check against request_queue->max_sectors
  block: WARN in __blk_put_request() for potential bio leak
  loop: fix circular locking in loop_clr_fd()
  loop: support barrier writes
  bsg: add support for tail queuing
  cpqarray: enable bus mastering
  block: genhd.h cleanup patch
  block: add private bio_set for bio integrity allocations
  block: genhd.h comment needs updating
  block: get rid of unused blkdev_free_rq() define
  block: remove various blk_queue_*() setting functions in blk_init_queue_node()
  cciss: add BUILD_BUG_ON() for catching bad CommandList_struct alignment
  block: don't create bio_vec slabs of less than the inline number
  block: cleanup bio_alloc_bioset()

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sparc64: Flush TLB before releasing pages.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1750 commits)
  ixgbe: Allow Priority Flow Control settings to survive a device reset
  net: core: remove unneeded include in net/core/utils.c.
  e1000e: update version number
  e1000e: fix close interrupt race
  e1000e: fix loss of multicast packets
  e1000e: commonize tx cleanup routine to match e1000 & igb
  netfilter: fix nf_logger name in ebt_ulog.
  netfilter: fix warning in ebt_ulog init function.
  netfilter: fix warning about invalid const usage
  e1000: fix close race with interrupt
  e1000: cleanup clean_tx_irq routine so that it completely cleans ring
  e1000: fix tx hang detect logic and address dma mapping issues
  bridge: bad error handling when adding invalid ether address
  bonding: select current active slave when enslaving device for mode tlb and alb
  gianfar: reallocate skb when headroom is not enough for fcb
  Bump release date to 25Mar2009 and version to 0.22
  r6040: Fix second PHY address
  qeth: fix wait_event_timeout handling
  qeth: check for completion of a running recovery
  qeth: unregister MAC addresses during recovery.
  ...

Manually fixed up conflicts in:
	drivers/infiniband/hw/cxgb3/cxio_hal.h
	drivers/infiniband/hw/nes/nes_nic.c

* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
  [WATCHDOG] i6300esb.c: start locking
  [WATCHDOG] i6300esb.c: convert to platform device driver
  [WATCHDOG] wdt.c: remove #ifdef CONFIG_WDT_501
  [WATCHDOG] Fix io.h & uaccess.h includes.
  [WATCHDOG] More coding-style and trivial clean-up
  [WATCHDOG] struct file_operations should be const
  [WATCHDOG] cpwd.c: Coding style - Clean-up
  [WATCHDOG] hpwdt.c: Add new HP BMC controller. 
  [PATCH 13/13] drivers/watchdog: use USB API functions rather than constants
  [WATCHDOG] orion5x_wdt: fix compile issue by providing tclk as platform data
  [WATCHDOG] rc32434_wdt: make sure watchdog is not running at startup
  [WATCHDOG] rc32434_wdt: add spin_locking
  [WATCHDOG] rc32434_wdt: add shutdown method
  [WATCHDOG] rc32434_wdt: add timeout module parameter
  [WATCHDOG] rc32434_wdt: clean-up driver
  [WATCHDOG] davinci: convert to ioremap() + io[read|write]
  [WATCHDOG] w83697ug: add error checking
  [WATCHDOG] cpwd.c & riowd.c - unlocked_ioctl

* 'kvm-updates/2.6.30' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (113 commits)
  KVM: VMX: Don't allow uninhibited access to EFER on i386
  KVM: Correct deassign device ioctl to IOW
  KVM: ppc: e500: Fix the bug that KVM is unstable in SMP
  KVM: ppc: e500: Fix the bug that mas0 update to wrong value when read TLB entry
  KVM: Fix missing smp tlb flush in invlpg
  KVM: Get support IRQ routing entry counts
  KVM: fix sparse warnings: Should it be static?
  KVM: fix sparse warnings: context imbalance
  KVM: is_long_mode() should check for EFER.LMA
  KVM: VMX: Update necessary state when guest enters long mode
  KVM: ia64: Fix the build errors due to lack of macros related to MSI.
  ia64: Move the macro definitions related to MSI to one header file.
  KVM: fix kvm_vm_ioctl_deassign_device
  KVM: define KVM_CAP_DEVICE_DEASSIGNMENT
  KVM: ppc: Add emulation of E500 register mmucsr0
  KVM: Report IRQ injection status for MSI delivered interrupts
  KVM: MMU: Fix another largepage memory leak
  KVM: SVM: set accessed bit for VMCB segment selectors
  KVM: Report IRQ injection status to userspace.
  KVM: MMU: remove assertion in kvm_mmu_alloc_page
  ...

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (30 commits)
  RDMA/cxgb3: Enforce required firmware
  IB/mlx4: Unregister IB device prior to CLOSE PORT command
  mlx4_core: Add link type autosensing
  mlx4_core: Don't perform SET_PORT command for Ethernet ports
  RDMA/nes: Handle MPA Reject message properly
  RDMA/nes: Improve use of PBLs
  RDMA/nes: Remove LLTX
  RDMA/nes: Inform hardware that asynchronous event has been handled
  RDMA/nes: Fix tmp_addr compilation warning
  RDMA/nes: Report correct vendor_id and vendor_part_id
  RDMA/nes: Update copyright to new legal entity and year
  RDMA/nes: Account for freed PBL after HW operation
  IB: Remove useless ibdev_is_alive() tests from sysfs code
  IB/sa_query: Fix AH leak due to update_sm_ah() race
  IB/mad: Fix ib_post_send_mad() returning 0 with no generate send comp
  IB/mad: initialize mad_agent_priv before putting on lists
  IB/mad: Fix null pointer dereference in local_completions()
  IB/mad: Fix RMPP header RRespTime manipulation
  IB/iser: Remove hard setting of path MTU
  mlx4_core: Add device IDs for MT25458 10GigE devices
  ...

* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  [CIFS] Fix memory overwrite when saving nativeFileSystem field during mount
  [CIFS]  Rename compose_mount_options to cifs_compose_mount_options.
  [CIFS] work around bug in Samba server handling for posix open
  [CIFS] Use posix open on file open when server supports it
  cifs: fix buffer format byte on NT Rename/hardlink
  [CIFS] Add definitions for remoteably fsctl calls
  [CIFS] add extra null attr check
  [CIFS] fix build error
  [CIFS] reopen file via newer posix open protocol operation if available
  [CIFS] Add new nostrictsync cifs mount option to avoid slow SMB flush
  [CIFS] DFS no longer experimental
  [CIFS] Send SMB flush in cifs_fsync

Now that the headers are in arch/foo/include/asm we don't want to exclude
them when preparing diff files.

Closes-bug: 12921
Signed-off-by: NAlan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

We don't have to start a transaction in writepage() when all the blocks
are a properly allocated. Even in ordered mode either the data has been
written via write() and they are thus already added to transaction's list
or the data was written via mmap and then it's random in which transaction
they get written anyway.

This should help VM to pageout dirty memory without blocking on transaction
commits.
Signed-off-by: NJan Kara <jack@suse.cz>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Conflicts:
	drivers/net/wimax/i2400m/usb-notif.c

commit b5dc7840 ("m68k: introduce irq
controller") reverted the return type of struct irq_node.handler() from
irqreturn_t to int. Change it back to irqreturn_t, else it will give a
compiler warning when irqreturn_t is turned into an enum in the near future:

| arch/m68k/kernel/ints.c:231: warning: assignment from incompatible pointer type
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>

add __init annotations to probe routines
Signed-off-by: NMichael Schmitz <schmitz@debian.org>
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>

add __initdata to driver presets struct
Signed-off-By: NMichael Schmitz <schmitz@debian.org>
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>

CVS is dead, long live git!
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>

It allows to read data from a floppy, but not to write to, and to eject the
floppy (useful on our Mac without eject button).
Signed-off-by: NLaurent Vivier <Laurent@lvivier.info>
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>

This patch adds a field "floppy_type" which can take the following values:

MAC_FLOPPY_IWM for an IWM based mac
MAC_FLOPPY_SWIM_ADDR1 for a SWIM based mac with controller at VIA1 + 0x1E000
MAC_FLOPPY_SWIM_ADDR2 for a SWIM based mac with controller at VIA1 + 0x16000
MAC_FLOPPY_IOP for an IOP based mac
MAC_FLOPPY_AV for an AV based mac
Signed-off-by: NLaurent Vivier <Laurent@lvivier.info>
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>