include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h

percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files.  percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.

percpu.h -> slab.h dependency is about to be removed.  Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability.  As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.

  http://userweb.kernel.org/~tj/misc/slabh-sweep.py

The script does the followings.

* Scan files for gfp and slab usages and update includes such that
  only the necessary includes are there.  ie. if only gfp is used,
  gfp.h, if slab is used, slab.h.

* When the script inserts a new include, it looks at the include
  blocks and try to put the new include such that its order conforms
  to its surrounding.  It's put in the include block which contains
  core kernel includes, in the same order that the rest are ordered -
  alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
  doesn't seem to be any matching order.

* If the script can't find a place to put a new include (mostly
  because the file doesn't have fitting include block), it prints out
  an error message indicating which .h file needs to be added to the
  file.

The conversion was done in the following steps.

1. The initial automatic conversion of all .c files updated slightly
   over 4000 files, deleting around 700 includes and adding ~480 gfp.h
   and ~3000 slab.h inclusions.  The script emitted errors for ~400
   files.

2. Each error was manually checked.  Some didn't need the inclusion,
   some needed manual addition while adding it to implementation .h or
   embedding .c file was more appropriate for others.  This step added
   inclusions to around 150 files.

3. The script was run again and the output was compared to the edits
   from #2 to make sure no file was left behind.

4. Several build tests were done and a couple of problems were fixed.
   e.g. lib/decompress_*.c used malloc/free() wrappers around slab
   APIs requiring slab.h to be added manually.

5. The script was run on all .h files but without automatically
   editing them as sprinkling gfp.h and slab.h inclusions around .h
   files could easily lead to inclusion dependency hell.  Most gfp.h
   inclusion directives were ignored as stuff from gfp.h was usually
   wildly available and often used in preprocessor macros.  Each
   slab.h inclusion directive was examined and added manually as
   necessary.

6. percpu.h was updated not to include slab.h.

7. Build test were done on the following configurations and failures
   were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
   distributed build env didn't work with gcov compiles) and a few
   more options had to be turned off depending on archs to make things
   build (like ipr on powerpc/64 which failed due to missing writeq).

   * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
   * powerpc and powerpc64 SMP allmodconfig
   * sparc and sparc64 SMP allmodconfig
   * ia64 SMP allmodconfig
   * s390 SMP allmodconfig
   * alpha SMP allmodconfig
   * um on x86_64 SMP allmodconfig

8. percpu.h modifications were reverted so that it could be applied as
   a separate patch and serve as bisection point.

Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: NTejun Heo <tj@kernel.org>
Guess-its-ok-by: NChristoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>

Signed-off-by: NDmitry Shmidt <dimitrysh@google.com>
Signed-off-by: NDaniel Walker <dwalker@codeaurora.org>

msmsdcc_enable_clocks() was incorrectly being called depending on
the state of host->clks_on. This means the busclk idle timer was never
being deleted if the clock was already on.. Bogus.

    Also fixes a possible double clk disable if the call to
del_timer_sync() in msmsdcc_disable_clocks() raced with
the busclk timer.
Signed-off-by: NSan Mehat <san@google.com>
Signed-off-by: NDaniel Walker <dwalker@codeaurora.org>

Signed-off-by: NSan Mehat <san@google.com>
Signed-off-by: NDaniel Walker <dwalker@codeaurora.org>

Signed-off-by: NSan Mehat <san@google.com>
Signed-off-by: NDaniel Walker <dwalker@codeaurora.org>

Signed-off-by: NSan Mehat <san@google.com>
Signed-off-by: NDaniel Walker <dwalker@codeaurora.org>

Signed-off-by: NSan Mehat <san@google.com>
Signed-off-by: NDaniel Walker <dwalker@codeaurora.org>

Signed-off-by: NSan Mehat <san@google.com>
Signed-off-by: NDaniel Walker <dwalker@codeaurora.org>

Signed-off-by: NSan Mehat <san@google.com>
Signed-off-by: NDaniel Walker <dwalker@codeaurora.org>

Signed-off-by: NSan Mehat <san@google.com>
Signed-off-by: NDaniel Walker <dwalker@codeaurora.org>

Based on an original patch by Brent DeGraaf:

"Previous versions of the SD driver were beset with excessive command
timeouts. These timeouts were silent by default, but happened
frequently, especially during heavy system activity and concurrent
access of two or more SD devices. Worst case, these timeouts would
occasionally hit at the end of a successful write, resulting in false
failures that could adversely affect journaling file systems if timing
was unfortunate. This update tightens the association and timing between
dma transfers and the commands that trigger them by utilizing a new api
implemented in the datamover.  In addition, it also fixes a dma cache
coherency issue that was exposed during testing of this fix that
occasionally resulted in card corruption.  Processing of results in the
interrupt status routine was modified to process command results prior to
data because overwritten command results were observed during testing
since the data section can result in command issuances of its own.
This change also eliminates the software command timeout, relying entirely
on the hardware version, since the software timeout was found to cause
problems of its own after extensive testing (having hardware timer and
software timers addressing the same issue was found to cause a race
condition under heavy system load)."

This change originally added PROG_DONE handling, which has been split out
into a separate patch. Also on our platform, the data mover driver maintains
coherency to ensure API reliability, so the above mentioned cache corruption
issue was not an issue for us.
Signed-off-by: NSan Mehat <san@google.com>
Cc: Brian Swetland <swetland@google.com>

Change-Id: Ifbf17cfafb858106d73bf49af52b5161a265a484
Signed-off-by: NSan Mehat <san@google.com>
Signed-off-by: NDaniel Walker <dwalker@codeaurora.org>

Signed-off-by: NSan Mehat <san@google.com>
Signed-off-by: NDaniel Walker <dwalker@codeaurora.org>

As it turns out, all sdcc register writes must be delayed by at
least 3 core clock cycles for the writes to take effect. *sigh*

    Also removes the 30us constant delay on clock enable in favor
of a 3 core clock delay.
Signed-off-by: NSan Mehat <san@google.com>
Signed-off-by: NDaniel Walker <dwalker@codeaurora.org>

- Clocks are now disabled after 1 second of inactivity
- Fixed issue which was causing us to loop through our ISR twice
- Bump core clock enable delay to 30us
Signed-off-by: NSan Mehat <san@google.com>
Signed-off-by: NDaniel Walker <dwalker@codeaurora.org>

Based on a patch from Brent DeGraaf:

"The datamover supports channels which can be shared amongst devices.
As a result, the actual data transfer may occur some time after the
request is queued up. Some devices such as mmc host controllers
will timeout if a command is issued too far in advance of the actual
transfer, so if dma to other devices on the same channel is already
in progress or queued up, the added delay can cause pending transfers
to fail before they start. This change extends the api to allow a
user callback to be invoked just before the actual transfer takes
place, thus allowing actions directly associated with the dma
transfer, such as device commands, to be invoked with precise timing.
Without this mechanism, there is no way for a driver to realize
this timing. Also adds a user pointer to the command structure for use
by the caller to reference information that may be needed by the
callback routine for proper identification and processing associated
with that specific request. This change is necessary to fix problems
associated with excessive command timeouts and race conditions in the
mmc driver."

This patch also fixes all the callers of msm_dmov_enqueue_cmd() to
ensure their callback function is NULL.
Signed-off-by: NSan Mehat <san@google.com>
Cc: Brent DeGraaf <bdegraaf@quicinc.com>
Cc: Brian Swetland <swetland@google.com>
Signed-off-by: NDaniel Walker <dwalker@codeaurora.org>

Signed-off-by: NSan Mehat <san@google.com>
Signed-off-by: NDaniel Walker <dwalker@codeaurora.org>

It appears that in some cases there may be a delay on the ARM9 in enabling our clock.
As a result, we may put the controller into a bad state. Delay 10us after enabling
clocks to let the peripheral settle. Note - this is all imperical.

Also ensure set_ios() callback grabs the host lock.
Signed-off-by: NSan Mehat <san@google.com>
Signed-off-by: NDaniel Walker <dwalker@codeaurora.org>

Since the curly brackets were missing the test and enable_irq(),
if true, occurred twice.
Signed-off-by: NRoel Kluin <roel.kluin@gmail.com>

Add missing include for msm_sdcc compilation, and remove pwrsink
support that is not mainline, yet.
Signed-off-by: NPavel Machek <pavel@ucw.cz>
[dwalker@codeaurora.org : fixed indent in mmc.h]
Signed-off-by: NDaniel Walker <dwalker@codeaurora.org>

Signed-off-by: NJoe Perches <joe@perches.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Brian Swetland <swetland@google.com>
Cc: Pierre Ossman <drzeus-list@drzeus.cx>
Cc: San Mehat <san@android.com>
Cc: Matt Fleming <matt@console-pimps.org>
Cc: Ian Molton <ian@mnementh.co.uk>
Cc: "Roberto A. Foglietta" <roberto.foglietta@gmail.com>
Cc: Philip Langdale <philipl@overt.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Make it a bit more like typical kernel style.
Signed-off-by: NJoe Perches <joe@perches.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Brian Swetland <swetland@google.com>
Cc: Pierre Ossman <drzeus-list@drzeus.cx>
Cc: San Mehat <san@android.com>
Cc: Matt Fleming <matt@console-pimps.org>
Cc: Ian Molton <ian@mnementh.co.uk>
Cc: "Roberto A. Foglietta" <roberto.foglietta@gmail.com>
Cc: Philip Langdale <philipl@overt.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Signed-off-by: NJoe Perches <joe@perches.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Brian Swetland <swetland@google.com>
Cc: Pierre Ossman <drzeus-list@drzeus.cx>
Cc: San Mehat <san@android.com>
Cc: Matt Fleming <matt@console-pimps.org>
Cc: Ian Molton <ian@mnementh.co.uk>
Cc: "Roberto A. Foglietta" <roberto.foglietta@gmail.com>
Cc: Philip Langdale <philipl@overt.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

MMC Driver for HTC Dream.  I picked the code up from Google git trees,
removed stuff not strictly necessary, and did a few cleanups.  It still
works :-).
Signed-off-by: NPavel Machek <pavel@ucw.cz>
Cc: Brian Swetland <swetland@google.com>
Cc: Pierre Ossman <drzeus-list@drzeus.cx>
Cc: Joe Perches <joe@perches.com>
Cc: Matt Fleming <matt@console-pimps.org>
Cc: Ian Molton <ian@mnementh.co.uk>
Cc: "Roberto A. Foglietta" <roberto.foglietta@gmail.com>
Cc: Philip Langdale <philipl@overt.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>