Addresses are passed in from the client's driver via the invocation of
dmaengine_slave_config(), so there's no need to fetch them from platform
data too, hardwired or otherwise. This is a great step forward, as it
elevates a large burden from platform data in the way of a look-up
table.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

It was required to pass DMA channel configuration information to the
UART driver before the new DMA API was in place. Now that it is, and
is fully compatible with Device Tree we can stop doing that.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Using the dmaengine API for slave transfers, allocating and configuring
a channel are two separate actions. Here we're removing logical channel
configuration from the channel allocation routine for slave transfers,
as the same config is already done in the runtime config function, and
put the corresponding call into d40_config_memcpy() for the memcpy
code path.

Cc: Dan Williams <djbw@fb.com>
Cc: Per Forlin <per.forlin@stericsson.com>
Cc: Rabin Vincent <rabin@rab.in>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
[Edited the commit message]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

The majority of configuration done in d40_phy_config() pertains
to physical channels. Move the call over to runtime config which
has different code paths for physical and logical channels already,
and make it an exclusive physical channel config function as the
name implies, and drop the is_log argument.

Since we moved the call to runtime_config() it only gets called
for device transfers, so encode the small snippet of configuration
pertaining to memcpy channels into the d40_config_memcpy()
function.
Acked-by: Vinod Koul <vinod.koul@intel.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
[rewrote the commit message]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

During the initial setup of a logical channel, it is necessary to unmask
the GIM in order to receive generated terminal count and error interrupts.
We're separating out this required code so it will be possible to move
the remaining code in d40_phy_cfg(), which is mostly runtime configuration
into the runtime_config() routine.

Cc: Dan Williams <djbw@fb.com>
Cc: Per Forlin <per.forlin@stericsson.com>
Cc: Rabin Vincent <rabin@rab.in>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Ironically, in order to remove lots of the auxdata assignments, we have
to add just one more. A lot of them require DMA information to be passed
into clients for DMA channel allocation, but we now have this capability
in Device Tree. However, the DMA40 driver still relies on a reverse table
look-up to obtain DMA addresses. Until all of the clients are converted,
over to the new API, we're stuck with this.

Also, now the DMA40 has been DT:ed, there's no requirement to register
it using traditional methods, so let's remove it.
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Using the new DMA DT bindings and API, we can register the DMA40 driver
as Device Tree capable. Now, when a client attempts to allocate a
channel using the DMA DT bindings via its own node, we are able to parse
the request and allocate a channel in the correct manner.

Cc: Dan Williams <djbw@fb.com>
Cc: Per Forlin <per.forlin@stericsson.com>
Cc: Rabin Vincent <rabin@rab.in>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: devicetree-discuss@lists.ozlabs.org
Acked-by: Vinod Koul <vinod.koul@intel.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

When booting using Device Tree, devices aren't registered in the normal
way. Instead, they need to be provided with a compatible string which is
held in an OF Match Table for comparison during start-up. Here we provide
the compatible string and prepare the driver to not receive a platform
data pointer.
Acked-by: Vinod Koul <vnod.koul@intel.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
[Fixed up whitespace error]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

It's the way that most other drivers do it.

Very trivial clean-up which reduces line count and simplifies code.
Acked-by: Vinod Koul <vnod.koul@intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Now we know the total of physical and logical channels, we may as
well report them within the information log.

Before:
dma40 dma40.0: hardware revision: 3 @ 0x801c0000 with 8 physical channels

After:
<as above ...> and 256 logical channels

Cc: Dan Williams <djbw@fb.com>
Cc: Per Forlin <per.forlin@stericsson.com>
Cc: Rabin Vincent <rabin@rab.in>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

At the moment we fetch the hardware revision, then do some stuff, then
check whether the revision is correct and return in error if it's not.
Well we may as well check it as soon as we know what it is, so let's
move the check right up underneath where we acquire the version.
Acked-by: Vinod Koul <vnod.koul@intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Before allocating memory for logical channels, the current driver
checks to see if there are any. Well as the dma40_memcpy_channels[]
array is always populated, the check is always true. Best to
remove the check.

Cc: Dan Williams <djbw@fb.com>
Cc: Per Forlin <per.forlin@stericsson.com>
Cc: Rabin Vincent <rabin@rab.in>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

This change will cost ~25KB of memory, but it's worth the trade-off,
as it removes a great deal of overhead. It means that instead of only
allocating memory for the logical channels in use, it does so for all
available ones, which is 32 per physical channel. However, this now
means we can remove some platform data and we don't have to worry
about adding vendor specific variables to Device Tree.
Acked-by: Vinod Koul <vnod.koul@intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

'psize' is used to calculate the maximum DMA burst size. However it
is only taken into consideration when editing the DMA channel's
configuration. The Audio DMA platform data is only used to allocate
a channel, not configure it. That will be done at a later date within
the MSP driver.

We're also removing comments which are no longer required, as
'data_width' is no longer set in any device's platform data period.
Tested-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

DMA configuration data is now allocated in the UART driver, so these
are just ignored.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

DMA configuration data is now allocated in the SSP driver, so these
are just ignored.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

DMA configuration data is now allocated in the MMCI driver, so these
are just ignored.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

The current implementation of the DMA40's local MAX() macro evaluates
its arguments more times than is necessary and it not type checked.
This patch strips replaces it with a new, more efficient constant.

Cc: Dan Williams <djbw@fb.com>
Cc: Per Forlin <per.forlin@stericsson.com>
Cc: Rabin Vincent <rabin@rab.in>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Reported-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

For the moment at least, the TX and RX channels for DB8500 USB are
identical, so this patch generalises them into a single structure
and passes it twice. Once as the TX and again for the RX configuration.
We're keeping the infrastructure the same i.e. passing the TX and RX
separately in case they start to differ on latter incarnations of the
platform.
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Devices which utilise DMA use the same device numbers for transmitting
and receiving. In this patch we encode the source and destination
information into one single attribute. We can subsequently exploit the
direction attribute to see which of the transfer directions are being
described. This also lessens the burden on platform data.

Cc: Dan Williams <djbw@fb.com>
Cc: Per Forlin <per.forlin@stericsson.com>
Cc: Rabin Vincent <rabin@rab.in>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

If we compare an event's group (dev_type / 16) with STEDMA40_DEV_DST_MEMORY
(-1), the only way we'd obtain a positive result is if we passed -16 as a
device type, which is unfeasible. Instead, it would be much more sane to
compare STEDMA40_DEV_DST_MEMORY against the raw dev_type in order to expect
the expected result.
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

There are only two default memcpy configurations used for the DMA40
driver; one for physical memcpy and one for logical memcpy. Instead
of invariably passing the same configurations though platform data,
we're moving them into the driver instead.
Acked-by: Vinod Koul <vnod.koul@intel.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

The commit
"dmaengine: ste_dma40: Assign memcpy channels in the driver"
had two problems:
- It assigned magic numbers to the memcpy event lines
  instead of giving them symbolic names.
- It seems to have missed one of the memcpy event lines,
  number 51.

This patch fixes it up.
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

The channels reserved for memcpy are the same for all currently
supported platforms. With this in mind, we can ease the platform
data passing requirement by moving these assignments out from
platform code and place them directly into the driver.
Acked-by: Vinod Koul <vnod.koul@intel.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Pull tracing/kprobes update from Steven Rostedt:
 "The majority of these changes are from Masami Hiramatsu bringing
  kprobes up to par with the latest changes to ftrace (multi buffering
  and the new function probes).

  He also discovered and fixed some bugs in doing so.  When pulling in
  his patches, I also found a few minor bugs as well and fixed them.

  This also includes a compile fix for some archs that select the ring
  buffer but not tracing.

  I based this off of the last patch you took from me that fixed the
  merge conflict error, as that was the commit that had all the changes
  I needed for this set of changes."

* tag 'trace-fixes-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing/kprobes: Support soft-mode disabling
  tracing/kprobes: Support ftrace_event_file base multibuffer
  tracing/kprobes: Pass trace_probe directly from dispatcher
  tracing/kprobes: Increment probe hit-count even if it is used by perf
  tracing/kprobes: Use bool for retprobe checker
  ftrace: Fix function probe when more than one probe is added
  ftrace: Fix the output of enabled_functions debug file
  ftrace: Fix locking in register_ftrace_function_probe()
  tracing: Add helper function trace_create_new_event() to remove duplicate code
  tracing: Modify soft-mode only if there's no other referrer
  tracing: Indicate enabled soft-mode in enable file
  tracing/kprobes: Fix to increment return event probe hit-count
  ftrace: Cleanup regex_lock and ftrace_lock around hash updating
  ftrace, kprobes: Fix a deadlock on ftrace_regex_lock
  ftrace: Have ftrace_regex_write() return either read or error
  tracing: Return error if register_ftrace_function_probe() fails for event_enable_func()
  tracing: Don't succeed if event_enable_func did not register anything
  ring-buffer: Select IRQ_WORK

Merge tag 'stable/for-linus-3.10-rc0-tag-two' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen

Pull Xen bug-fixes from Konrad Rzeszutek Wilk:
 - More fixes in the vCPU PVHVM hotplug path.
 - Add more documentation.
 - Fix various ARM related issues in the Xen generic drivers.
 - Updates in the xen-pciback driver per Bjorn's updates.
 - Mask the x2APIC feature for PV guests.

* tag 'stable/for-linus-3.10-rc0-tag-two' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen/pci: Used cached MSI-X capability offset
  xen/pci: Use PCI_MSIX_TABLE_BIR, not PCI_MSIX_FLAGS_BIRMASK
  xen: clear IRQ_NOAUTOEN and IRQ_NOREQUEST
  xen: mask x2APIC feature in PV
  xen: SWIOTLB is only used on x86
  xen/spinlock: Fix check from greater than to be also be greater or equal to.
  xen/smp/pvhvm: Don't point per_cpu(xen_vpcu, 33 and larger) to shared_info
  xen/vcpu: Document the xen_vcpu_info and xen_vcpu
  xen/vcpu/pvhvm: Fix vcpu hotplugging hanging.

Pull second SCSI update from James "Jaj B" Bottomley:
 "This is the final round of SCSI patches for the merge window.  It
  consists mostly of driver updates (bnx2fc, ibmfc, fnic, lpfc,
  be2iscsi, pm80xx, qla4x and ipr).

  There's also the power management updates that complete the patches in
  Jens' tree, an iscsi refcounting problem fix from the last pull, some
  dif handling in scsi_debug fixes, a few nice code cleanups and an
  error handling busy bug fix."

* tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (92 commits)
  [SCSI] qla2xxx: Update firmware link in Kconfig file.
  [SCSI] iscsi class, qla4xxx: fix sess/conn refcounting when find fns are used
  [SCSI] sas: unify the pointlessly separated enums sas_dev_type and sas_device_type
  [SCSI] pm80xx: thermal, sas controller config and error handling update
  [SCSI] pm80xx: NCQ error handling changes
  [SCSI] pm80xx: WWN Modification for PM8081/88/89 controllers
  [SCSI] pm80xx: Changed module name and debug messages update
  [SCSI] pm80xx: Firmware flash memory free fix, with addition of new memory region for it
  [SCSI] pm80xx: SPC new firmware changes for device id 0x8081 alone
  [SCSI] pm80xx: Added SPCv/ve specific hardware functionalities and relevant changes in common files
  [SCSI] pm80xx: MSI-X implementation for using 64 interrupts
  [SCSI] pm80xx: Updated common functions common for SPC and SPCv/ve
  [SCSI] pm80xx: Multiple inbound/outbound queue configuration
  [SCSI] pm80xx: Added SPCv/ve specific ids, variables and modify for SPC
  [SCSI] lpfc: fix up Kconfig dependencies
  [SCSI] Handle MLQUEUE busy response in scsi_send_eh_cmnd
  [SCSI] sd: change to auto suspend mode
  [SCSI] sd: use REQ_PM in sd's runtime suspend operation
  [SCSI] qla4xxx: Fix iocb_cnt calculation in qla4xxx_send_mbox_iocb()
  [SCSI] ufs: Correct the expected data transfersize
  ...

Pull idle update from Len Brown:
 "Add support for new Haswell-ULT CPU idle power states"

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
  intel_idle: initial C8, C9, C10 support
  tools/power turbostat: display C8, C9, C10 residency

Pull audit changes from Eric Paris:
 "Al used to send pull requests every couple of years but he told me to
  just start pushing them to you directly.

  Our touching outside of core audit code is pretty straight forward.  A
  couple of interface changes which hit net/.  A simple argument bug
  calling audit functions in namei.c and the removal of some assembly
  branch prediction code on ppc"

* git://git.infradead.org/users/eparis/audit: (31 commits)
  audit: fix message spacing printing auid
  Revert "audit: move kaudit thread start from auditd registration to kaudit init"
  audit: vfs: fix audit_inode call in O_CREAT case of do_last
  audit: Make testing for a valid loginuid explicit.
  audit: fix event coverage of AUDIT_ANOM_LINK
  audit: use spin_lock in audit_receive_msg to process tty logging
  audit: do not needlessly take a lock in tty_audit_exit
  audit: do not needlessly take a spinlock in copy_signal
  audit: add an option to control logging of passwords with pam_tty_audit
  audit: use spin_lock_irqsave/restore in audit tty code
  helper for some session id stuff
  audit: use a consistent audit helper to log lsm information
  audit: push loginuid and sessionid processing down
  audit: stop pushing loginid, uid, sessionid as arguments
  audit: remove the old depricated kernel interface
  audit: make validity checking generic
  audit: allow checking the type of audit message in the user filter
  audit: fix build break when AUDIT_DEBUG == 2
  audit: remove duplicate export of audit_enabled
  Audit: do not print error when LSMs disabled
  ...

Pull nfsd fixes from Bruce Fields:
 "Small fixes for two bugs and two warnings"

* 'for-3.10' of git://linux-nfs.org/~bfields/linux:
  nfsd: fix oops when legacy_recdir_name_error is passed a -ENOENT error
  SUNRPC: fix decoding of optional gss-proxy xdr fields
  SUNRPC: Refactor gssx_dec_option_array() to kill uninitialized warning
  nfsd4: don't allow owner override on 4.1 CLAIM_FH opens

Pull x86 platform drivers from Matthew Garrett:
 "Small set of updates, mainly trivial bugfixes and some small updates
  to deal with newer hardware.

  There's also a new driver that allows qemu guests to notify the
  hypervisor that they've just paniced, which seems useful."

* 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86:
  Add support for fan button on Ideapad Z580
  pvpanic: pvpanic device driver
  asus-nb-wmi: set wapf=4 for ASUSTeK COMPUTER INC. X75A
  drivers: platform: x86: Use PTR_RET function
  sony-laptop: SVS151290S kbd backlight and gfx switch support
  hp-wmi: add more definitions for new event_id's
  dell-laptop: Fix krealloc() misuse in parse_da_table()
  hp_accel: Ignore the error from lis3lv02d_poweron() at resume
  dell: add new dell WMI format for the AIO machines

Pull stray syscall bits from Al Viro:
 "Several syscall-related commits that were missing from the original"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal:
  switch compat_sys_sysctl to COMPAT_SYSCALL_DEFINE
  unicore32: just use mmap_pgoff()...
  unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINE
  x86, vm86: fix VM86 syscalls: use SYSCALL_DEFINEx(...)

Merge tag 'ecryptfs-3.10-rc1-ablkcipher' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs

Pull eCryptfs update from Tyler Hicks:
 "Improve performance when AES-NI (and most likely other crypto
  accelerators) is available by moving to the ablkcipher crypto API.
  The improvement is more apparent on faster storage devices.

  There's no noticeable change when hardware crypto is not available"

* tag 'ecryptfs-3.10-rc1-ablkcipher' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs:
  eCryptfs: Use the ablkcipher crypto API

Pull misc fixes from David Woodhouse:
 "This is some miscellaneous cleanups that don't really belong anywhere
  else (or were ignored), that have been sitting in linux-next for some
  time.  Two of them are fixes resulting from my audit of krealloc()
  usage that don't seem to have elicited any response when I posted
  them, and the other three are patches from Artem removing dead code."

* tag 'for-linus-20130509' of git://git.infradead.org/~dwmw2/random-2.6:
  pcmcia: remove RPX board stuff
  m68k: remove rpxlite stuff
  pcmcia: remove Motorola MBX860 support
  params: Fix potential memory leak in add_sysfs_param()
  dell-laptop: Fix krealloc() misuse in parse_da_table()

Pull kvm fixes from Gleb Natapov:
 "Most of the fixes are in the emulator since now we emulate more than
  we did before for correctness sake we see more bugs there, but there
  is also an OOPS fixed and corruption of xcr0 register."

* tag 'kvm-3.10-2' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: emulator: emulate SALC
  KVM: emulator: emulate XLAT
  KVM: emulator: emulate AAM
  KVM: VMX: fix halt emulation while emulating invalid guest sate
  KVM: Fix kvm_irqfd_init initialization
  KVM: x86: fix maintenance of guest/host xcr0 state

Pull device-mapper updates from Alasdair Kergon:
 "Allow devices that hold metadata for the device-mapper thin
  provisioning target to be extended easily; allow WRITE SAME on
  multipath devices; an assortment of little fixes and clean-ups."

* tag 'dm-3.10-changes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm: (21 commits)
  dm cache: set config value
  dm cache: move config fns
  dm thin: generate event when metadata threshold passed
  dm persistent metadata: add space map threshold callback
  dm persistent data: add threshold callback to space map
  dm thin: detect metadata device resizing
  dm persistent data: support space map resizing
  dm thin: open dev read only when possible
  dm thin: refactor data dev resize
  dm cache: replace memcpy with struct assignment
  dm cache: fix typos in comments
  dm cache policy: fix description of lookup fn
  dm: document iterate_devices
  dm persistent data: fix error message typos
  dm cache: tune migration throttling
  dm mpath: enable WRITE SAME support
  dm table: fix write same support
  dm bufio: avoid a possible __vmalloc deadlock
  dm snapshot: fix error return code in snapshot_ctr
  dm cache: fix error return code in cache_create
  ...

Pull HID fixes from Jiri Kosina:

 - fix usage of sleeping lock in atomic context from Jiri Kosina

 - build fix for hid-steelseries under certain .config setups by Simon Wood

 - simple mismerge fix from Fernando Luis Vázquez Cao

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: debug: fix RCU preemption issue
  HID: hid-steelseries fix led class build issue
  HID: reintroduce fix-up for certain Sony RF receivers

Signed-off-by: James Bottomley <JBottomley@Parallels.com>

Signed-off-by: James Bottomley <JBottomley@Parallels.com>