GitHub/mt8127/android_kernel_alcatel_ttab.git
16 years agox86_64 ia32 syscall audit fast-path
Roland McGrath [Tue, 24 Jun 2008 08:13:31 +0000 (01:13 -0700)]
x86_64 ia32 syscall audit fast-path

This adds fast paths for 32-bit syscall entry and exit when
TIF_SYSCALL_AUDIT is set, but no other kind of syscall tracing.
These paths does not need to save and restore all registers as
the general case of tracing does.  Avoiding the iret return path
when syscall audit is enabled helps performance a lot.

Signed-off-by: Roland McGrath <roland@redhat.com>
16 years agox86_64 syscall audit fast-path
Roland McGrath [Mon, 23 Jun 2008 22:37:04 +0000 (15:37 -0700)]
x86_64 syscall audit fast-path

This adds a fast path for 64-bit syscall entry and exit when
TIF_SYSCALL_AUDIT is set, but no other kind of syscall tracing.
This path does not need to save and restore all registers as
the general case of tracing does.  Avoiding the iret return path
when syscall audit is enabled helps performance a lot.

Signed-off-by: Roland McGrath <roland@redhat.com>
16 years agox86_64: remove bogus optimization in sysret_signal
Roland McGrath [Tue, 24 Jun 2008 03:41:12 +0000 (20:41 -0700)]
x86_64: remove bogus optimization in sysret_signal

This short-circuit path in sysret_signal looks wrong to me.
AFAICT, in practice the branch is never taken--and if it were,
it would go wrong.  To wit, try loading a module whose init
function does set_thread_flag(TIF_IRET), and see insmod crash
(presumably with a wrong user stack pointer).

This is because the FIXUP_TOP_OF_STACK work hasn't been done yet
when we jump around the call to ptregscall_common and get to
int_with_check--where it expects the user RSP,SS,CS and EFLAGS to
have been stored by FIXUP_TOP_OF_STACK.

I don't think it's normally possible to get to sysret_signal with no
_TIF_DO_NOTIFY_MASK bits set anyway, so these two instructions are
already superfluous.  If it ever did happen, it is harmless to call
do_notify_resume with nothing for it to do.

Signed-off-by: Roland McGrath <roland@redhat.com>
16 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc
Linus Torvalds [Wed, 23 Jul 2008 19:04:34 +0000 (12:04 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/drzeus/mmc

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc:
  sdhci: highmem capable PIO routines
  sg: reimplement sg mapping iterator
  mmc_test: print message when attaching to card
  mmc: Remove Russell as primecell mci maintainer
  mmc_block: bounce buffer highmem support
  sdhci: fix bad warning from commit c8b3e02
  sdhci: add warnings for bad buffers in ADMA path
  mmc_test: test oversized sg lists
  mmc_test: highmem tests
  s3cmci: ensure host stopped on machine shutdown
  au1xmmc: suspend/resume implementation
  s3cmci: fixes for section mismatch warnings
  pxamci: trivial fix of DMA alignment register bit clearing

16 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx
Linus Torvalds [Wed, 23 Jul 2008 19:03:18 +0000 (12:03 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/djbw/async_tx

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx: (24 commits)
  I/OAT: I/OAT version 3.0 support
  I/OAT: tcp_dma_copybreak default value dependent on I/OAT version
  I/OAT: Add watchdog/reset functionality to ioatdma
  iop_adma: cleanup iop_chan_xor_slot_count
  iop_adma: document how to calculate the minimum descriptor pool size
  iop_adma: directly reclaim descriptors on allocation failure
  async_tx: make async_tx_test_ack a boolean routine
  async_tx: remove depend_tx from async_tx_sync_epilog
  async_tx: export async_tx_quiesce
  async_tx: fix handling of the "out of descriptor" condition in async_xor
  async_tx: ensure the xor destination buffer remains dma-mapped
  async_tx: list_for_each_entry_rcu() cleanup
  dmaengine: Driver for the Synopsys DesignWare DMA controller
  dmaengine: Add slave DMA interface
  dmaengine: add DMA_COMPL_SKIP_{SRC,DEST}_UNMAP flags to control dma unmap
  dmaengine: Add dma_client parameter to device_alloc_chan_resources
  dmatest: Simple DMA memcpy test client
  dmaengine: DMA engine driver for Marvell XOR engine
  iop-adma: fix platform driver hotplug/coldplug
  dmaengine: track the number of clients using a channel
  ...

Fixed up conflict in drivers/dca/dca-sysfs.c manually

16 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel...
Linus Torvalds [Wed, 23 Jul 2008 18:59:37 +0000 (11:59 -0700)]
Merge branch 'for_linus' of git://git./linux/kernel/git/jwessel/linux-2.6-kgdb

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb:
  kgdb: kgdboc console poll hooks for mpsc uart
  kgdb: kgdboc console poll hooks for cpm uart
  kgdb, powerpc: arch specific powerpc kgdb support
  kgdb: support for ARCH=arm
  kgdb: remove unused HAVE_ARCH_KGDB_SHADOW_INFO config variable

16 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6
Linus Torvalds [Wed, 23 Jul 2008 18:59:09 +0000 (11:59 -0700)]
Merge git://git./linux/kernel/git/bart/ide-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (60 commits)
  ide: small whitespace fixes
  ide: ide-cd_ioctl.c fix sparse integer as NULL pointer warnings
  ide: ide-cd.c fix sparse endianness warnings
  ide-cd: convert to using the new atapi_flags
  ide: remove unused PC_FLAG_DRQ_INTERRUPT
  ide-scsi: convert to using the new atapi_flags
  ide-tape: convert to using the new atapi_flags
  ide-floppy: convert to using the new atapi_flags (take 2)
  ide: add per-device flags
  ide: use rq->cmd instead of pc->c in atapi common code
  ide-scsi: pass packet command in rq->cmd
  ide-tape: pass packet command in rq->cmd
  ide-tape: make room for packet command ids in rq->cmd
  ide-floppy: pass packet command in rq->cmd
  ide: remove pc->callback member from ide_atapi_pc
  ide-scsi: use drive->pc_callback instead of pc->callback
  ide-tape: use drive->pc_callback instead of pc->callback
  ide-floppy: use drive->pc_callback instead of pc->callback
  ide: push pc callback pointer into the ide_drive_t structure
  drivers/ide/ide-tape.c: remove double kfree
  ...

16 years agoide: small whitespace fixes
Pavel Machek [Wed, 23 Jul 2008 17:56:02 +0000 (19:56 +0200)]
ide: small whitespace fixes

Small whitespace fixes for drivers/ide.

Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: ide-cd_ioctl.c fix sparse integer as NULL pointer warnings
Harvey Harrison [Wed, 23 Jul 2008 17:56:02 +0000 (19:56 +0200)]
ide: ide-cd_ioctl.c fix sparse integer as NULL pointer warnings

The function ide_cd_queue_pc should be checked as the bufflen arg is
dereferenced and lots of callers are passing in NULL.

drivers/ide/ide-cd_ioctl.c:124:46: warning: Using plain integer as NULL pointer
drivers/ide/ide-cd_ioctl.c:149:47: warning: Using plain integer as NULL pointer
drivers/ide/ide-cd_ioctl.c:231:46: warning: Using plain integer as NULL pointer
drivers/ide/ide-cd_ioctl.c:374:46: warning: Using plain integer as NULL pointer

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: ide-cd.c fix sparse endianness warnings
Harvey Harrison [Wed, 23 Jul 2008 17:56:02 +0000 (19:56 +0200)]
ide: ide-cd.c fix sparse endianness warnings

drivers/ide/ide-cd.c:1276:46: warning: Using plain integer as NULL pointer
drivers/ide/ide-cd.c:1298:19: warning: cast to restricted __be32
drivers/ide/ide-cd.c:1300:4: warning: cast to restricted __be32
drivers/ide/ide-cd.c:1522:14: warning: cast to restricted __le16
drivers/ide/ide-cd.c:1523:14: warning: cast to restricted __le16
drivers/ide/ide-cd.c:1525:14: warning: cast to restricted __be16
drivers/ide/ide-cd.c:1526:14: warning: cast to restricted __be16
drivers/ide/ide-cd.c:1667:37: warning: cast to restricted __be16

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Acked-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide-cd: convert to using the new atapi_flags
Borislav Petkov [Wed, 23 Jul 2008 17:56:02 +0000 (19:56 +0200)]
ide-cd: convert to using the new atapi_flags

There should be no functionality change resulting from this patch.

[bart: IDE_FLAG_* -> IDE_AFLAG_*, dev_flags -> atapi_flags]

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: remove unused PC_FLAG_DRQ_INTERRUPT
Borislav Petkov [Wed, 23 Jul 2008 17:56:01 +0000 (19:56 +0200)]
ide: remove unused PC_FLAG_DRQ_INTERRUPT

There should be no functionality change resulting from this patch.

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide-scsi: convert to using the new atapi_flags
Borislav Petkov [Wed, 23 Jul 2008 17:56:01 +0000 (19:56 +0200)]
ide-scsi: convert to using the new atapi_flags

Remove unused IDESCSI_PC_RQ while at it.

There should be no functionality change resulting from this patch.

[bart: IDE_FLAG_* -> IDE_AFLAG_*, dev_flags -> atapi_flags]

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide-tape: convert to using the new atapi_flags
Borislav Petkov [Wed, 23 Jul 2008 17:56:01 +0000 (19:56 +0200)]
ide-tape: convert to using the new atapi_flags

There should be no functionality change resulting from this patch.

[bart: IDE_FLAG_* -> IDE_AFLAG_*, dev_flags -> atapi_flags]

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide-floppy: convert to using the new atapi_flags (take 2)
Borislav Petkov [Wed, 23 Jul 2008 17:56:01 +0000 (19:56 +0200)]
ide-floppy: convert to using the new atapi_flags (take 2)

while at it, remove PC_FLAG_ZIP_DRIVE from the packed command flags altogether
and query the drive type through drive->atapi_flags.

v2:
ide-floppy fix.

There should be no functionality change resulting from this patch.

[bart: IDE_FLAG_* -> IDE_AFLAG_*, dev_flags -> atapi_flags]

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: add per-device flags
Borislav Petkov [Wed, 23 Jul 2008 17:56:01 +0000 (19:56 +0200)]
ide: add per-device flags

Push device flags up into ide_drive_t.

There should be no functionality change resulting from this patch.

[bart: IDE_FLAG_* -> IDE_AFLAG_*, dev_flags -> atapi_flags]

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: use rq->cmd instead of pc->c in atapi common code
Borislav Petkov [Wed, 23 Jul 2008 17:56:01 +0000 (19:56 +0200)]
ide: use rq->cmd instead of pc->c in atapi common code

There should be no functionality change resulting from this patch.

[bart: s/HWGROUP(drive)/hwif->hwgroup/]

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide-scsi: pass packet command in rq->cmd
Borislav Petkov [Wed, 23 Jul 2008 17:56:00 +0000 (19:56 +0200)]
ide-scsi: pass packet command in rq->cmd

Make a redundant copy of the packet command bits into rq->cmd.
Later, after all drivers have been converted, it'll be
switched to use that in the common code instead of pc->c.

There should be no functionality change resulting from this patch.

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide-tape: pass packet command in rq->cmd
Borislav Petkov [Wed, 23 Jul 2008 17:56:00 +0000 (19:56 +0200)]
ide-tape: pass packet command in rq->cmd

Make a redundant copy of the packet command bits into rq->cmd. Later, after
all drivers have been converted, it'll be switched to use that in the
common code instead of pc->c. While at it, simplify ide_tape_create_rw_cmd.

There should be no functionality change resulting from this patch.

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide-tape: make room for packet command ids in rq->cmd
Borislav Petkov [Wed, 23 Jul 2008 17:56:00 +0000 (19:56 +0200)]
ide-tape: make room for packet command ids in rq->cmd

ide-tape uses rq->cmd for special commands from the chrdev interface so move
those to byte 13 (BLK_MAX_CDB = 16) since a packet cmd is max 12 bytes.

There should be no functionality change resulting from this patch.

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide-floppy: pass packet command in rq->cmd
Borislav Petkov [Wed, 23 Jul 2008 17:56:00 +0000 (19:56 +0200)]
ide-floppy: pass packet command in rq->cmd

Make a redundant copy of the packet command bits into rq->cmd.
Later, after all drivers have been converted, it'll be
switched to use that in the common code instead of pc->c.

There should be no functionality change resulting from this patch.

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: remove pc->callback member from ide_atapi_pc
Borislav Petkov [Wed, 23 Jul 2008 17:56:00 +0000 (19:56 +0200)]
ide: remove pc->callback member from ide_atapi_pc

There should be no functionality change resulting from this patch.

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide-scsi: use drive->pc_callback instead of pc->callback
Borislav Petkov [Wed, 23 Jul 2008 17:55:59 +0000 (19:55 +0200)]
ide-scsi: use drive->pc_callback instead of pc->callback

There should be no functionality change resulting from this patch.

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide-tape: use drive->pc_callback instead of pc->callback
Borislav Petkov [Wed, 23 Jul 2008 17:55:59 +0000 (19:55 +0200)]
ide-tape: use drive->pc_callback instead of pc->callback

The if-else block in the IRQ handler is only temporary so that bisect searches
don't break and it'll be removed after converting the remainder of the drivers.

There should be no functionality change resulting from this patch.

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide-floppy: use drive->pc_callback instead of pc->callback
Borislav Petkov [Wed, 23 Jul 2008 17:55:59 +0000 (19:55 +0200)]
ide-floppy: use drive->pc_callback instead of pc->callback

It is important that drive->pc_callback is set prior to enabling IRQs on the
device since this is called from the IRQ handler. Otherwise it hurts as I learnt
the hard way from the several "Kernel panic - not synching: Fatal exception in
interrupt" during the weekend :).

The if-else block in the IRQ handler is only temporary so that bisect searches
don't break and it'll be removed after converting the remainder of the drivers.

There should be no functionality change resulting from this patch.

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: push pc callback pointer into the ide_drive_t structure
Borislav Petkov [Wed, 23 Jul 2008 17:55:59 +0000 (19:55 +0200)]
ide: push pc callback pointer into the ide_drive_t structure

Refrain from carrying the callback ptr with every packet command since the
callback function is only one anyways. ide_drive_t is probably not the most
suitable place for it right now but is the more sane solution. Besides, these
structs are going to be reorganized anyways during the generic ide rewrite.

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agodrivers/ide/ide-tape.c: remove double kfree
Darren Jenkins [Wed, 23 Jul 2008 17:55:59 +0000 (19:55 +0200)]
drivers/ide/ide-tape.c: remove double kfree

Coverity CID: 2336 USE_AFTER_FREE

drivers/ide/ide-tape.c ide_tape_kfree_buffer() double free's a pointer
(hint freed by an alias in first outer loop).

This patch simply removes the superfluous kfree().

Signed-off-by: Darren Jenkins <darrenrjenkins@gmailcom>
Acked-by: Borislav Petkov <petkovbb@gmail.com>
Cc: gadio@netvision.net.il
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: add ide_host_free() helper (take 2)
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:59 +0000 (19:55 +0200)]
ide: add ide_host_free() helper (take 2)

* Add ide_host_free() helper and convert ide_host_remove() to use it.

* Fix handling of ide_host_register() failure in ide_host_add(),
  icside.c, ide-generic.c, falconide.c and sgiioc4.c.

While at it:

* Fix handling of ide_host_alloc_all() failure in ide-generic.c.

* Fix handling of ide_host_alloc() failure in falconide.c
  (also return the correct error value if no device is found).

v2:
* falconide build fix. (From Stephen Rothwell)

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: allocate ide_hwif_t instances dynamically
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:58 +0000 (19:55 +0200)]
ide: allocate ide_hwif_t instances dynamically

* Allocate ide_hwif_t instances dynamically and remove ide_hwifs[].

  This cuts almost ~14kB from ide-probe.o (x86-32, MAX_HWIFS == 10):

   text    data     bss     dec     hex filename
   9140      40   14084   23264    5ae0 drivers/ide/ide-probe.o.before
   9169      40      44    9253    2425 drivers/ide/ide-probe.o.after

* Remove no longer needed ide_init_port_data() call from ide_unregister().

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: add ide_ports[]
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:58 +0000 (19:55 +0200)]
ide: add ide_ports[]

* Add ide_ports[] table keeping pointers to all initialized ports.

* Set ide_ports[] entry for a given port in init_irq() and clear it
  ide_remove_port_from_hwgroup().

* Convert init_irq() to use ide_ports[] instead of ide_hwifs[] for
  grouping ports into hwgroup.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: move ide_remove_port_from_hwgroup() to ide-probe.c
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:58 +0000 (19:55 +0200)]
ide: move ide_remove_port_from_hwgroup() to ide-probe.c

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: fix IDE port slots reservation and freeing (take 2)
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:57 +0000 (19:55 +0200)]
ide: fix IDE port slots reservation and freeing (take 2)

* Make ide_find_port_slot() return port slot index.

* Add ide_free_port_slot() helper.

* Move ide_init_port_data() call and error printk() from
  ide_find_port_slot() to ide_host_alloc_all().

* Make ide_{find,free}_port_slot() take ide_cfg_mtx mutex
  and convert them use ide_indexes bitmap to keep track of
  reserved port slots.

* Don't set hwif->chipset in ide_host_alloc_all() as it is
  no longer necessary.

v2:
* Pass the correct slot index to ide_init_port_data().

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: fix ide_host_register() return value
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:57 +0000 (19:55 +0200)]
ide: fix ide_host_register() return value

Fix ide_host_register() to fail only if all ports cannot be registered.

While at it:

* Use host->ports[] instead of ide_hwifs[] and remove idx[].

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: add ide_host_add() helper
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:57 +0000 (19:55 +0200)]
ide: add ide_host_add() helper

Add ide_host_add() helper which does ide_host_alloc()+ide_host_register(),
then convert ide_setup_pci_device[s](), ide_legacy_device_add() and some
host drivers to use it.

While at it:

* Fix ide_setup_pci_device[s](), ide_arm.c, gayle.c, ide-4drives.c,
  macide.c, q40ide.c, cmd640.c and cs5520.c to return correct error value.

* -ENOENT -> -ENOMEM in rapide.c, ide-h8300.c, ide-generic.c, au1xxx-ide.c
  and pmac.c

* -ENODEV -> -ENOMEM in palm_bk3710.c, ide_platform.c and delkin_cb.c

* -1 -> -ENOMEM in ide-pnp.c

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: add struct ide_host (take 3)
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:57 +0000 (19:55 +0200)]
ide: add struct ide_host (take 3)

* Add struct ide_host which keeps pointers to host's ports.

* Add ide_host_alloc[_all]() and ide_host_remove() helpers.

* Pass 'struct ide_host *host' instead of 'u8 *idx' to
  ide_device_add[_all]() and rename it to ide_host_register[_all]().

* Convert host drivers and core code to use struct ide_host.

* Remove no longer needed ide_find_port().

* Make ide_find_port_slot() static.

* Unexport ide_unregister().

v2:
* Add missing 'struct ide_host *host' to macide.c.

v3:
* Fix build problem in pmac.c (s/ide_alloc_host/ide_host_alloc/)
  (Noticed by Stephen Rothwell).

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: add struct ide_tp_ops (take 2)
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:56 +0000 (19:55 +0200)]
ide: add struct ide_tp_ops (take 2)

* Add struct ide_tp_ops for transport methods.

* Add 'const struct ide_tp_ops *tp_ops' to struct ide_port_info
  and ide_hwif_t.

* Set the default hwif->tp_ops in ide_init_port_data().

* Set host driver specific hwif->tp_ops in ide_init_port().

* Export ide_exec_command(), ide_read_status(), ide_read_altstatus(),
  ide_read_sff_dma_status(), ide_set_irq(), ide_tf_{load,read}()
  and ata_{in,out}put_data().

* Convert host drivers and core code to use struct ide_tp_ops.

* Remove no longer needed default_hwif_transport().

* Cleanup ide_hwif_t from methods that are now in struct ide_tp_ops.

While at it:

* Use struct ide_port_info in falconide.c and q40ide.c.

* Rename ata_{in,out}put_data() to ide_{in,out}put_data().

v2:

* Fix missing convertion in ns87415.c.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: add 'config' field to hw_regs_t
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:56 +0000 (19:55 +0200)]
ide: add 'config' field to hw_regs_t

Add 'config' field to hw_regs_t and use it to set hwif->config_data in
ide_init_port_hw(), then convert ide_legacy_init_one() to use hw->config.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide-generic: probing fix
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:56 +0000 (19:55 +0200)]
ide-generic: probing fix

* Don't skip probing IDE port if the corresponding ide_hwifs[] slot
  is already occupied.

* Remove duplicate idx[i] assignment.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agogayle: reserve memory resources at once
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:56 +0000 (19:55 +0200)]
gayle: reserve memory resources at once

* Reserve memory resources for all IDE ports at once by moving
  request_mem_region() out of 'for ()' loop and always defining
  GAYLE_IDEREG_SIZE to 0x2000.

* Keep memory resources even if no free IDE slots can be found
  (this driver is unloadable currently).

Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: filter out "default" transfer mode values in set_xfer_rate()
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:56 +0000 (19:55 +0200)]
ide: filter out "default" transfer mode values in set_xfer_rate()

* Filter out "default" transfer mode values (0x00 - default PIO mode,
  0x01 - default PIO mode w/ IORDY disabled) in write handler for obsoleted
  /proc/ide/hd?/settings:current_speed setting.

  Allowing "default" transfer mode values is a dangerous thing to do as
  we don't support programming controller to the "default" transfer mode
  and devices often use different values for the default and maximum PIO
  mode (i.e. PIO2 default and PIO4 maximum) so the controller will stay
  programmed for higher PIO mode while device will use the lower PIO mode.

  There is no functionality loss as by using special IOCTLs device can
  still be programmed to "default" transfer modes (it is only useful for
  debugging/testing purposes anyway).

* Remove no longer needed IDE_HFLAG_ABUSE_SET_DMA_MODE host flag, it was
  previously used by few host drivers to program the controller to PIO0
  timings for "default" transfer mode == 0x01 (although some host drivers
  would program invalid PIO timings instead).

* Cleanup ide_set_xfer_rate() and add BUG_ON().

Suggested-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: filter out invalid transfer mode values in set_xfer_rate()
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:55 +0000 (19:55 +0200)]
ide: filter out invalid transfer mode values in set_xfer_rate()

Filter out invalid transfer mode values (0x02-0x07) in write handler
for obsoleted /proc/ide/hd?/settings:current_speed setting.

While at it:

* Use XFER_UDMA_6 define.

Suggested-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: remove dead Virtual DMA support
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:55 +0000 (19:55 +0200)]
ide: remove dead Virtual DMA support

Lets remove dead Virtual DMA support for now so it doesn't clutter
core IDE code (it can be bring back when there is a need for it):

* Remove IDE_HFLAG_VDMA host flag.

* Remove ide_drive_t.vdma flag.

* cs5520.c: remove stale FIXMEs, cs5520_dma_host_set() and cs5520_dma_ops
  (also there is no longer a need to set IDE_HFLAG_NO_ATAPI_DMA).

There should be no functional changes caused by this patch.

Cc: TAKADA Yoshihito <takada@mbf.nifty.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: mark hpt34x host driver as BROKEN
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:55 +0000 (19:55 +0200)]
ide: mark hpt34x host driver as BROKEN

Alan Cox has noticed some time ago that hpt34x is broken
(http://lkml.org/lkml/2007/7/3/257):

"No the old driver doesn't even do that. It starts up. It spuriously
adjusts some non writable PCI BAR registers, prints a message about
resources being in use already then exits."

Reported-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: limit cy82c693 host driver to ALPHA
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:54 +0000 (19:55 +0200)]
ide: limit cy82c693 host driver to ALPHA

Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: remove ->INB, ->OUTB and ->OUTBSYNC methods
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:54 +0000 (19:55 +0200)]
ide: remove ->INB, ->OUTB and ->OUTBSYNC methods

* Remove no longer needed ->INB, ->OUTB and ->OUTBSYNC methods.

Then:

* Remove no longer used default_hwif_[mm]iops() and ide_[mm_]outbsync().

* Cleanup SuperIO handling in ns87415.c.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: add ide_read_bcount_and_ireason() helper
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:54 +0000 (19:55 +0200)]
ide: add ide_read_bcount_and_ireason() helper

Add ide_read_bcount_and_ireason() helper and use it instead of ->INB
in {cdrom_newpc,ide_pc}_intr().

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: add ide_read_ireason() helper
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:54 +0000 (19:55 +0200)]
ide: add ide_read_ireason() helper

Add ide_read_ireason() helper and use instead of ->INB for reading
ATAPI Interrupt Reason register.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: add ide_read_device() helper
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:54 +0000 (19:55 +0200)]
ide: add ide_read_device() helper

Add ide_read_device() helper and convert do_probe() to use it
instead of ->INB.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: use ->tf_read in ide_read_error()
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:53 +0000 (19:55 +0200)]
ide: use ->tf_read in ide_read_error()

* Add IDE_TFLAG_IN_FEATURE taskfile flag for reading Feature
  register and handle it in ->tf_read.

* Convert ide_read_error() to use ->tf_read instead of ->INB,
  then uninline and export it.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: use ->tf_load in SELECT_DRIVE()
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:53 +0000 (19:55 +0200)]
ide: use ->tf_load in SELECT_DRIVE()

Convert SELECT_DRIVE() to use ->tf_load instead of ->OUTB.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: use ->tf_load in actual_try_to_identify()
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:53 +0000 (19:55 +0200)]
ide: use ->tf_load in actual_try_to_identify()

Convert actual_try_to_identify() to use ->tf_load instead of ->OUTB.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: use ->tf_load in ide_config_drive_speed()
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:52 +0000 (19:55 +0200)]
ide: use ->tf_load in ide_config_drive_speed()

Convert ide_config_drive_speed() to use ->tf_load instead of ->OUTB.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: change order of register access in ide_config_drive_speed()
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:52 +0000 (19:55 +0200)]
ide: change order of register access in ide_config_drive_speed()

Write ATA Feature register before ATA Sector Count register as
a preparation to use ->tf_load in ide_config_drive_speed().

This change shouldn't affect anything (just an usual paranoia).

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: add ->set_irq method
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:52 +0000 (19:55 +0200)]
ide: add ->set_irq method

Add ->set_irq method for setting nIEN bit of ATA Device Control
register and use it instead of ide_set_irq().

While at it:

* Use ->set_irq in init_irq() and do_reset1().

* Don't use HWIF() macro in ide_check_pm_state().

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: add ->read_altstatus method
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:52 +0000 (19:55 +0200)]
ide: add ->read_altstatus method

* Remove ide_read_altstatus() inline helper.

* Add ->read_altstatus method for reading ATA Alternate Status
  register and use it instead of ->INB.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: add ->read_status method
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:52 +0000 (19:55 +0200)]
ide: add ->read_status method

* Remove ide_read_status() inline helper.

* Add ->read_status method for reading ATA Status register
  and use it instead of ->INB.

While at it:

* Don't use HWGROUP() macro.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: add ->exec_command method
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:51 +0000 (19:55 +0200)]
ide: add ->exec_command method

Add ->exec_command method for writing ATA Command register
and use it instead of ->OUTBSYNC.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: factor out simplex handling from ide_pci_dma_base()
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:51 +0000 (19:55 +0200)]
ide: factor out simplex handling from ide_pci_dma_base()

* Factor out simplex handling from ide_pci_dma_base() to
  ide_pci_check_simplex().

* Set hwif->dma_base early in ->init_dma method / ide_hwif_setup_dma()
  and reset it in ide_init_port() if DMA initialization fails.

* Use ->read_sff_dma_status instead of ->INB in ide_pci_dma_base().

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: remove ide_setup_dma()
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:51 +0000 (19:55 +0200)]
ide: remove ide_setup_dma()

Export sff_dma_ops and then remove ide_setup_dma().

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: remove ->dma_{status,command} fields from ide_hwif_t
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:51 +0000 (19:55 +0200)]
ide: remove ->dma_{status,command} fields from ide_hwif_t

* Use ->dma_base + offset instead of ->dma_{status,command}
  and remove no longer needed ->dma_{status,command}.

While at it:

* Use ATA_DMA_* defines.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: use I/O ops directly in ide-dma.c
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:50 +0000 (19:55 +0200)]
ide: use I/O ops directly in ide-dma.c

Use I/O ops directly in ide_dma_host_set(), ide_dma_setup(),
ide_dma_start() and __ide_dma_end().

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: add ->read_sff_dma_status method
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:50 +0000 (19:55 +0200)]
ide: add ->read_sff_dma_status method

Add ->read_sff_dma_status method for reading DMA Status register
and use it instead of ->INB.

While at it:

* Use inb() directly in ns87415.c::ns87415_dma_end().

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: pass hw_regs_t-s to ide_device_add[_all]() (take 3)
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:50 +0000 (19:55 +0200)]
ide: pass hw_regs_t-s to ide_device_add[_all]() (take 3)

* Add 'hw_regs_t **hws' argument to ide_device_add[_all]() and convert
  host drivers + ide_legacy_init_one() + ide_setup_pci_device[s]() to use
  it instead of calling ide_init_port_hw() directly.

  [ However if host has > 1 port we must still set hwif->chipset to hint
    consecutive ide_find_port() call that the previous slot is occupied. ]

* Unexport ide_init_port_hw().

v2:
* Use defines instead of hard-coded values in buddha.c, gayle.c and q40ide.c.
  (Suggested by Geert Uytterhoeven)

* Better patch description.

v3:
* Fix build problem in ide-cs.c. (Noticed by Stephen Rothwell)

There should be no functional changes caused by this patch.

Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide: move ide_pci_setup_ports() call out from do_ide_setup_pci_device()
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:49 +0000 (19:55 +0200)]
ide: move ide_pci_setup_ports() call out from do_ide_setup_pci_device()

* Move ide_pci_setup_ports() call out from do_ide_setup_pci_device()
  to ide_setup_pci_device[s]().

* Drop no longer needed idx argument from do_ide_setup_pci_device().

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide-pmac: move ide_find_port() call to pmac_ide_setup_device() (take 2)
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:49 +0000 (19:55 +0200)]
ide-pmac: move ide_find_port() call to pmac_ide_setup_device() (take 2)

Move ide_find_port() call to pmac_ide_setup_device().

While at it:

- fix return value (s/-ENODEV/-ENOENT/)

- add DRV_NAME define and use it to set name field of pmac_port_info

- use ide_find_port_slot() instead of ide_find_port()

- remove superfluous error message (ide_find_port_slot() takes care of it)

- drop IDE interface number from driver banner message (but include bus type)

v2:
* Build fix (thanks to Stephen Rothwell for noticing the issue).

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide-pmac: add ->init_dev method (take 4)
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:49 +0000 (19:55 +0200)]
ide-pmac: add ->init_dev method (take 4)

v2/3:
* Build fixes from Stephen Rothwell.

v4:
* Fix ->noprobe setting. (From Benjamin Herrenschmidt)

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoide-pmac: store pmif instead of hwif in ->driver_data (take 2)
Bartlomiej Zolnierkiewicz [Wed, 23 Jul 2008 17:55:48 +0000 (19:55 +0200)]
ide-pmac: store pmif instead of hwif in ->driver_data (take 2)

* Pass pmif instead of hwif to pmac_ide_do_{suspend,resume}().

* Store pmif instead of hwif in ->driver_data.

* Use dev_get_drvdata() instead of ->hwif_data to obtain pmif.

v2:
* Build fixes from Stephen Rothwell.

There should be no functional changes caused by this patch.

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Linus Torvalds [Wed, 23 Jul 2008 16:44:31 +0000 (09:44 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jikos/hid

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: apple_fn_keys F5 and F6
  HID: remove quirk lookup from usbkbd/usbmouse
  HID: Add mapping of new KEY_MEDIA_REPEAT keycode
  HID: gyration remote support
  HID: gyration sleep button quirk
  HID: add quirk for Logitech DiNovo desktop
  HID: fix quirk handling in usbmouse/kbd
  HID: fix memory leak in hidraw_release
  HID: add n-trig digitizer usage
  HID: Invert HWHEEL mappings for some Logitech mice
  HID:usbkbd:mark usb_kbd_keycode array as const
  HID: add fn key support on Macbook Pro 4,1 and Macbook Air
  HID: remove unused variable from hiddev compat ioctl
  HID: fix compile issue in hiddev ioctl
  HID: Push down BKL into ioctl handler in hidraw
  HID: Switch hiddev to unlocked_ioctl
  HID: use get/put_unaligned_* helpers
  HID: fix report descriptor handling for MS Wireless model 1028

16 years agoUML - Fix boot crash
Jeff Dike [Wed, 23 Jul 2008 15:46:50 +0000 (11:46 -0400)]
UML - Fix boot crash

My copying of linux/init.h didn't go far enough.  The definition of
__used singled out gcc minor version 3, but didn't care what the major
version was.  This broke when unit-at-a-time was added and gcc started
throwing out initcalls.

This results in an early boot crash when ptrace tries to initialize a
process with an empty, uninitialized register set.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agodrivers/char/nvram.c: Removed duplicated include
Huang Weiyi [Wed, 23 Jul 2008 14:45:20 +0000 (22:45 +0800)]
drivers/char/nvram.c: Removed duplicated include

Removed duplicated include file <linux/smp_lock.h> in
drivers/char/nvram.c.

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoset_irq_wake: fix return code and wake status tracking
Uwe Kleine-König [Wed, 23 Jul 2008 12:42:25 +0000 (14:42 +0200)]
set_irq_wake: fix return code and wake status tracking

Since 15a647eba94c3da27ccc666bea72e7cca06b2d19 set_irq_wake returned -ENXIO
if another device had it already enabled.  Zero is the right value to
return in this case.  Moreover the change to desc->status was not reverted
if desc->chip->set_wake returned an error.

Signed-off-by: Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agokgdb: kgdboc console poll hooks for mpsc uart
Jason Wessel [Wed, 23 Jul 2008 16:30:16 +0000 (11:30 -0500)]
kgdb: kgdboc console poll hooks for mpsc uart

Add in console polling hooks for the mpsc uart for use with kgdb and
kgdboc.

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
16 years agokgdb: kgdboc console poll hooks for cpm uart
Jason Wessel [Wed, 23 Jul 2008 16:30:16 +0000 (11:30 -0500)]
kgdb: kgdboc console poll hooks for cpm uart

Add in console polling hooks for the cpm uart for use with kgdb and
kgdboc.

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
CC: galak@kernel.crashing.org
16 years agokgdb, powerpc: arch specific powerpc kgdb support
Jason Wessel [Wed, 23 Jul 2008 16:30:15 +0000 (11:30 -0500)]
kgdb, powerpc: arch specific powerpc kgdb support

This patch removes the old kgdb reminants from ARCH=powerpc and
implements the new style arch specific stub for the common kgdb core
interface.

It is possible to have xmon and kgdb in the same kernel, but you
cannot use both at the same time because there is only one set of
debug hooks.

The arch specific kgdb implementation saves the previous state of the
debug hooks and restores them if you unconfigure the kgdb I/O driver.
Kgdb should have no impact on a kernel that has no kgdb I/O driver
configured.

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
16 years agokgdb: support for ARCH=arm
Jason Wessel [Wed, 20 Feb 2008 19:33:40 +0000 (13:33 -0600)]
kgdb: support for ARCH=arm

This patch adds the ARCH=arm specific a kgdb backend, originally
written by Deepak Saxena <dsaxena@plexity.net> and George Davis
<gdavis@mvista.com>.  Geoff Levand <geoffrey.levand@am.sony.com>,
Nicolas Pitre, Manish Lachwani, and Jason Wessel have contributed
various fixups here as well.

The KGDB patch makes one change to the core ARM architecture such that
the traps are initialized early for use with the debugger or other
subsystems.

[ mingo@elte.hu: small cleanups. ]
[ ben-linux@fluff.org: fixed early_trap_init ]

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Acked-by: Deepak Saxena <dsaxena@plexity.net>
16 years agokgdb: remove unused HAVE_ARCH_KGDB_SHADOW_INFO config variable
Jason Wessel [Wed, 23 Jul 2008 16:30:15 +0000 (11:30 -0500)]
kgdb: remove unused HAVE_ARCH_KGDB_SHADOW_INFO config variable

Remove HAVE_ARCH_KGDB_SHADOW_INFO because it does not
exist anywhere in the kernel mainline sources

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
16 years agoMerge branches 'upstream' and 'upstream-fixes' into for-linus
Jiri Kosina [Wed, 23 Jul 2008 13:26:10 +0000 (15:26 +0200)]
Merge branches 'upstream' and 'upstream-fixes' into for-linus

16 years agoHID: apple_fn_keys F5 and F6
Henrik Rydberg [Tue, 22 Jul 2008 13:54:05 +0000 (15:54 +0200)]
HID: apple_fn_keys F5 and F6

In drivers/hid/hid-input.c, the apple_fn_keys translation table
contains no entries for the F5 and F6 keys. This patch maps the F5 and
F6 keys to KBDILLUMDOWN and KBDILLUMUP, respektively, which make them
work as keyboard backlight control keys.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID: remove quirk lookup from usbkbd/usbmouse
Jiri Kosina [Mon, 21 Jul 2008 16:30:05 +0000 (18:30 +0200)]
HID: remove quirk lookup from usbkbd/usbmouse

This patch completely removes the dependency of usbkbd and usbmouse drivers
on usbhid code.

usbkbd/usbmouse drivers are not needed in the vast majority of cases anyway,
and they shouldn't be loaded in standard configurations at all. They are supposed
to be as trivial as possible, and searching for HID_QUIRK_IGNORE can even be
bad in some cases.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID: Add mapping of new KEY_MEDIA_REPEAT keycode
Dmitry Torokhov [Fri, 4 Jul 2008 16:48:20 +0000 (12:48 -0400)]
HID: Add mapping of new KEY_MEDIA_REPEAT keycode

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID: gyration remote support
Daniel Walker [Fri, 4 Jul 2008 13:23:10 +0000 (15:23 +0200)]
HID: gyration remote support

This adds in a quirk for the additional un-mapped buttons on the
gyration MCE remote.

Defines are now alphabetical.

Signed-off-by: Daniel Walker <dwalker@mvista.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID: gyration sleep button quirk
Jiri Kosina [Fri, 4 Jul 2008 13:22:53 +0000 (15:22 +0200)]
HID: gyration sleep button quirk

This patch is based on one provided by Jiri Kosina to handle the sleep
button. I just added some cleanup and integrated it into my series.

Signed-off-by: Daniel Walker <dwalker@mvista.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID: add quirk for Logitech DiNovo desktop
Jiri Kosina [Tue, 1 Jul 2008 10:35:16 +0000 (12:35 +0200)]
HID: add quirk for Logitech DiNovo desktop

Logitech DiNovo desktop needs the same quirk as other DiNovo
devices.

Reported-by: Farid Benamrouche <farid.benamrouche@free.fr>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID: fix quirk handling in usbmouse/kbd
Jiri Slaby [Fri, 27 Jun 2008 20:09:25 +0000 (22:09 +0200)]
HID: fix quirk handling in usbmouse/kbd

When usbmouse/kbd is set to build, USB_HID is never defined due to
the USB_HID!=y Kconfig rule. Test CONFIG_USB_HID_MODULE in both
drivers instead.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID: fix memory leak in hidraw_release
Jiri Kosina [Tue, 24 Jun 2008 12:45:27 +0000 (14:45 +0200)]
HID: fix memory leak in hidraw_release

hidraw_release() forgot to free the linked list structure, causing memory
leak.

Reported-by: Juan Marcos Diez Esteban <juan_m_diez@yahoo.es>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID: add n-trig digitizer usage
Rafi Rubin [Thu, 19 Jun 2008 09:51:04 +0000 (11:51 +0200)]
HID: add n-trig digitizer usage

This adds a hid usage that is reported by the N-Trig digitizer in the Dell
Latitude XT screen.

Signed-off-by: Rafi Rubin <rafi@seas.upenn.edu>
Signed-off-by: Vojtech Pavlik <vojtech@suse.cz>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID: Invert HWHEEL mappings for some Logitech mice
Dan Nicholson [Sat, 14 Jun 2008 17:26:24 +0000 (10:26 -0700)]
HID: Invert HWHEEL mappings for some Logitech mice

Some Logitech mice have a tilt wheel which register as HWHEEL buttons.
The events are positive for a click to the right and negative for a
click to the left. Applications expect the opposite, though.

I suspect this affects a lot more Logitech mice, but these are the only
two I have. I tested this using evtest and a GTK application. A similar
Microsoft Intellimouse I have works correctly.

Signed-off-by: Dan Nicholson <dbn.lists@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID:usbkbd:mark usb_kbd_keycode array as const
Ming Lei [Sun, 8 Jun 2008 08:15:16 +0000 (16:15 +0800)]
HID:usbkbd:mark usb_kbd_keycode array as const

mark it as const because it is read only

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID: add fn key support on Macbook Pro 4,1 and Macbook Air
Alexandre Karpenko [Wed, 4 Jun 2008 08:31:24 +0000 (10:31 +0200)]
HID: add fn key support on Macbook Pro 4,1 and Macbook Air

Added device ids to hid-quriks for detection of keyboards on 4th
generation Macbook Pro and Macbook Air

The naming scheme is consistent with past Apple keyboards in hid-quirks;
as defined by Apple (including device ids) in:
/System/Library/Extensions/AppleUSBTopCase.kext/Contents/PlugIns/AppleUSBTCKeyboard.kext/Co
ntents/Info.plist
Patch was originally posted and tested at:
https://bugs.launchpad.net/mactel-support/+bug/207127

Signed-off-by: Alexandre Karpenko <alexander@comm.utoronto.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID: remove unused variable from hiddev compat ioctl
Jiri Kosina [Wed, 4 Jun 2008 13:29:42 +0000 (15:29 +0200)]
HID: remove unused variable from hiddev compat ioctl

Remove unused inode variable from hiddev compat ioctl handler.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID: fix compile issue in hiddev ioctl
Jiri Kosina [Tue, 27 May 2008 09:36:40 +0000 (11:36 +0200)]
HID: fix compile issue in hiddev ioctl

Fix build failure introduced by Alan's ioctl -> unlocked_ioctl
(pushing BKL down to the driver) conversion patch for hiddev.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID: Push down BKL into ioctl handler in hidraw
Alan Cox [Mon, 26 May 2008 09:25:26 +0000 (11:25 +0200)]
HID: Push down BKL into ioctl handler in hidraw

In this case I simply wrapped it as code review suggests the locking
already terminally broken and I didn't want to make it first. See added
comment

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID: Switch hiddev to unlocked_ioctl
Alan Cox [Mon, 26 May 2008 09:25:20 +0000 (11:25 +0200)]
HID: Switch hiddev to unlocked_ioctl

Push down the BKL. In some cases compat_ioctl already doesn't take the
BKL so we don't either. Some of the locking here seems already dubious
and object lifetimes want documenting

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoHID: use get/put_unaligned_* helpers
Harvey Harrison [Fri, 16 May 2008 09:00:23 +0000 (11:00 +0200)]
HID: use get/put_unaligned_* helpers

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
16 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Jiri Kosina [Wed, 23 Jul 2008 13:19:00 +0000 (15:19 +0200)]
Merge branch 'master' of git://git./linux/kernel/git/torvalds/linux-2.6

16 years agosdhci: highmem capable PIO routines
Pierre Ossman [Sun, 20 Jul 2008 22:32:11 +0000 (00:32 +0200)]
sdhci: highmem capable PIO routines

Improve the PIO handling so that it can service highmem pages.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
16 years agosg: reimplement sg mapping iterator
Tejun Heo [Sat, 19 Jul 2008 14:03:35 +0000 (23:03 +0900)]
sg: reimplement sg mapping iterator

This is alternative implementation of sg content iterator introduced
by commit 83e7d317... from Pierre Ossman in next-20080716.  As there's
already an sg iterator which iterates over sg entries themselves, name
this sg_mapping_iterator.

Slightly edited description from the original implementation follows.

Iteration over a sg list is not that trivial when you take into
account that memory pages might have to be mapped before being used.
Unfortunately, that means that some parts of the kernel restrict
themselves to directly accesible memory just to not have to deal with
the mess.

This patch adds a simple iterator system that allows any code to
easily traverse an sg list and not have to deal with all the details.
The user can decide to consume part of the iteration.  Also, iteration
can be stopped and resumed later if releasing the kmap between
iteration steps is necessary.  These features are useful to implement
piecemeal sg copying for interrupt drive PIO for example.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
16 years agommc_test: print message when attaching to card
Pierre Ossman [Tue, 22 Jul 2008 12:38:35 +0000 (14:38 +0200)]
mmc_test: print message when attaching to card

Make it a bit more obvious that the card has been claimed by the
mmc_test driver so that people don't have to wonder why their block
device never shows up.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
16 years agommc: Remove Russell as primecell mci maintainer
Pierre Ossman [Tue, 22 Jul 2008 12:36:57 +0000 (14:36 +0200)]
mmc: Remove Russell as primecell mci maintainer

Russell no longer has the resources to fully test the controller, so
he is stepping down as maintainer.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
16 years agommc_block: bounce buffer highmem support
Pierre Ossman [Tue, 22 Jul 2008 12:35:42 +0000 (14:35 +0200)]
mmc_block: bounce buffer highmem support

Support highmem pages in the bounce buffer code by using the
sg_copy_from/to_buffer() functions.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>