Commit Graph

48 Commits

Author SHA1 Message Date
Tejun Heo 5a0e3ad6af 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: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-30 22:02:32 +09:00
Arthur Benilov 3c2aabc41d Staging: vme: VMIVME-7805 board support
VMIVME-7805 board has a special control register that has to be used in
order to activate the VME bus access via the Universe II bridge.
This control register also handles endianess convertion.

Signed-off-by: Arthur Benilov <arthur.benilov@iba-group.com>
Signed-off-by: Vincent Bossier <vincent.bossier@iba-group.com>
Acked-by: Martyn Welch <martyn.welch@ge.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:43:02 -08:00
Arthur Benilov 33e920d9eb Staging: vme: Allocate memory buffers for master windows
For VME device I/O operations on master windows the user driver tends
to use kern_buf buffer array which is not allocated. This causes an error
when reading from master window device files.

Signed-off-by: Arthur Benilov <arthur.benilov@iba-group.com>
Signed-off-by: Vincent Bossier <vincent.bossier@iba-group.com>
Acked-by: Martyn Welch <martyn.welch@ge.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:43:02 -08:00
Arthur Benilov 5188d74cc4 Staging: vme: Use A24 when requesting slave resource
When requesting slave resources A16 addressing mode flag is used to find
available windows. Since the ca91cx42 bridge only supports two A16 slave windows
but four are requested, the driver fails to initialize. The flag has been
changed to A24, which is supported by all slave windows.

Signed-off-by: Arthur Benilov <arthur.benilov@iba-group.com>
Signed-off-by: Vincent Bossier <vincent.bossier@iba-group.com>
Acked-by: Martyn Welch <martyn.welch@ge.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:43:02 -08:00
Arthur Benilov 877de4b486 Staging: vme: llseek support in user driver
Provide vme_user_llseek() implementation.

Signed-off-by: Arthur Benilov <arthur.benilov@iba-group.com>
Signed-off-by: Vincent Bossier <vincent.bossier@iba-group.com>
Acked-by: Martyn Welch <martyn.welch@ge.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:43:01 -08:00
Martyn Welch bb9ea89ec8 Staging: vme: Remove legacy unsupported code
Remove the code from the drivers that we are not going to implement before
submitting for review.

Signed-off-by: Martyn Welch <martyn.welch@ge.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:43:01 -08:00
Martyn Welch 25331ba2f8 Staging: vme: ca91cx42 slot detection
Sort out slot detection on the ca91cx42.

Signed-off-by: Martyn Welch <martyn.welch@ge.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:43:01 -08:00
Martyn Welch 04e10e15f9 Staging: vme: Add ca91cx42 rmw support
Add support for Master Read-Modify-Write cycles on the ca91cx42.

Signed-off-by: Martyn Welch <martyn.welch@ge.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:43:01 -08:00
Martyn Welch 21e0cf6d2e Staging: vme: Correct ca91cx42 resource handling
The ca91cx42 driver currently incorrectly handles master windows, setting
and retrieving the sizing parameters incorrectly. Also, in the slave window
handling, it uses an incorrectly set variable.

Signed-off-by: Martyn Welch <martyn.welch@ge.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:43:01 -08:00
Martyn Welch 4860ab74d4 Staging: vme: add ca91cx42 dma support
Add support for the DMA controller in the ca91cx42 bridge.

Signed-off-by: Martyn Welch <martyn.welch@ge.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:43:01 -08:00
Martyn Welch 2b82beb8c1 Staging: vme: Add location monitor support for ca91cx42
Signed-off-by: Martyn Welch <martyn.welch@ge.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:43:01 -08:00
Martyn Welch 8fafb47638 Staging: vme: Make vme_master_resource naming bus neutral
The vme_master_resource structure contains an item called "pci_resource".
Rename to make bus agnostic.

Signed-off-by: Martyn Welch <martyn.welch@ge.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:43:01 -08:00
Martyn Welch 29848ac9f3 Staging: vme: Enable drivers to handle more than one bridge
At the moment the vme bridge drivers are written in a way that only
allows them to support one bridge at a time. Modify the drivers to
enable more than one bridge to be present per board.

Signed-off-by: Martyn Welch <martyn.welch@ge.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:43:00 -08:00
Martyn Welch 4f723df45d Staging: vme: Attribute Testing For Dma Request
Check the directions in which the DMA controller is expected to operate
before giving control of a resource.

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:43:00 -08:00
Martyn Welch 66bd8db52a Staging: vme: Renaming following split of GE Fanuc joint venture
This patch corrects author email addresses and Copyright notices as a
result of the split up of the GE Fanuc joint venture.

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:43:00 -08:00
Jeff Mahoney 362f46e3ab Staging: vme/tsi148: Depend on VIRT_TO_BUS
This driver depends on virt_to_bus working correctly, but it doesn't
exist on ppc64 (and probably other arches).

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:42:43 -08:00
Németh Márton 13ac58dac0 staging: make PCI device id constant
The id_table field of the struct pci_driver is constant in <linux/pci.h>
so it is worth to make the initialization data also constant.

The semantic match that finds this kind of pattern is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r@
disable decl_init,const_decl_init;
identifier I1, I2, x;
@@
	struct I1 {
	  ...
	  const struct I2 *x;
	  ...
	};
@s@
identifier r.I1, y;
identifier r.x, E;
@@
	struct I1 y = {
	  .x = E,
	};
@c@
identifier r.I2;
identifier s.E;
@@
	const struct I2 E[] = ... ;
@depends on !c@
identifier r.I2;
identifier s.E;
@@
+	const
	struct I2 E[] = ...;
// </smpl>

Signed-off-by: Németh Márton <nm127@freemail.hu>
Cc: Julia Lawall <julia@diku.dk>
Cc: cocci@diku.dk
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:42:42 -08:00
Martyn Welch 42d4eff70f Staging: vme: Allow drivers to co-exist
Unable to build both drivers at the same time due to classing variables that should be declared static but aren't.

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:42:28 -08:00
Martyn Welch 3cb1b8a774 Staging: vme: Remove old structures for implemented features
Functionality for master RMW and location monitors has been implemented.
Remove the commented out structures from the original codebase.

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:42:27 -08:00
Martyn Welch ead1f3e301 Staging: vme: Fix checkpatch errors on VME core.
Running checkpatch on the core VME code highlights many errors. Fix them.

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:42:27 -08:00
Martyn Welch 12b2d5c089 Staging: vme: Allow override of geographical address on ca91c142
Geographical addressing only works if the VME backplane supports it. There
are a large number of old backplanes which do not support geographical
addressing. These boards will generally report a slot ID of zero - which is
an invalid ID in the slot numbering scheme.

Allow the geographical address to be over-ridden on the ca91c142 so that a
slot ID can be provided manually in these circumstances.

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:42:27 -08:00
Martyn Welch 638f199db4 Staging: vme: Allow override of geographical address on tsi148
Geographical addressing only works if the VME backplane supports it. There
are a large number of old backplanes which do not support geographical
addressing. These boards will generally report a slot ID of zero - which is
an invalid ID in the slot numbering scheme.

Allow the geographical address to be over-ridden on the tsi148 so that a
slot ID can be provided manually in these circumstances.

Signed-off-by: Markus Kraemer <mkraemer@e18.physik.tu-muenchen.de>
Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:42:27 -08:00
Martyn Welch 51616e2106 Staging: vme: Correct vme_user error message typo
Correction of erroneous error message in vme_user.c.

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:42:27 -08:00
Martyn Welch a5c330fe8b staging: vme: Fix mutex locking
Fix incorrect use of mutex_trylock().

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11 12:23:18 -08:00
Martyn Welch 58e507987b Staging: vme: Rename VME DMA functions
The DMA resource allocation function is called "vme_request_dma" while
master and slave window allocation functions are called
"vme_master_request" and "vme_slave_request" respectively. Rename
"vme_request_dma" to "vme_dma_request" to fit the pattern.

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11 12:23:18 -08:00
Martyn Welch a4b02959d5 Staging: vme: Clean up tsi148 driver
* Remove message from IACK interrupt handler
* Correct clearing of location monitor interrupts
* Remove interrupt cleanup code that's duplcated in sub function

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11 12:23:18 -08:00
Martyn Welch 8be9226c8f Staging: vme: Correct operation of vme_lm_free
The vme_lm_free() function is not clearing up the resource created in
vme_lm_request(). In addition vme_lm_free() is void function and is used in
exit/error paths, we should wait for mutex to become free rather than
exiting and not freeing the resource.

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11 12:23:18 -08:00
Martyn Welch 59c2290428 Staging: vme: Allow size of 0 when disabling a window
The TSI148 driver currently does not allow a size of zero to be passed to a
window. Zero is a valid value if the window is being disabled. Allow
windows to be disabled and their registers cleared.

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11 12:23:18 -08:00
Greg Kroah-Hartman 70d7aa889f Staging: vme: fix compiler warnings in vme_ca91cx42.c
It's causing people to ignore problems in the file, so get rid
of them so it's obvious something is wrong in the future.

Cc: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11 12:23:17 -08:00
Martyn Welch c813f592a5 Staging: vme: Pull common VME interrupt handling into core code
Currently the VME callback infrastructure is replicated in each VME driver.
Move this common code into the VME core. Rename functions to fit in better
with naming of other VME functions.

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11 12:23:17 -08:00
Martyn Welch beb9ccc635 staging: vme: correct array overflow
Eric Sesterhenn noticed that vme_user is overflowing an array used by
sprintf. Use a bigger array.

CC: Eric Sesterhenn <eric.sesterhenn@lsexperts.de>
Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11 12:23:17 -08:00
Huang Weiyi 6884bb0924 Staging: vme: remove unused #include <linux/version.h>
Remove unused #include <linux/version.h>('s) in
  drivers/staging/vme/bridges/vme_ca91cx42.c
  drivers/staging/vme/bridges/vme_tsi148.c
  drivers/staging/vme/devices/vme_user.c
  drivers/staging/vme/vme.c

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Acked-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11 12:23:17 -08:00
Greg Kroah-Hartman 6af783c8ba Staging: vme: fix sched.h build breakage
commit d43c36dc removed sched.h from interrupt.h.  This broke the
vme drivers.  This patch fixes them.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-10-14 14:14:36 -07:00
Greg Kroah-Hartman 51be97961f Staging: vme: change to VME_BUS
Turns out the m68k arch already has a CONFIG_VME, so use
CONFIG_VME_BUS instead.

Thanks to Geet Uytterhoeven for pointing this out.

Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-09-15 12:02:11 -07:00
Martyn Welch bf39f9a5bd Staging: vme: Separate the list of TODOs from the API documentation
This patch moves the API documentation to it's own file and provides a
proper list of TODOs.

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-09-15 12:02:11 -07:00
Martyn Welch 3d0f8bc751 Staging: vme: Update support for the Universe II VME driver
This patch starts the reworking of the vme_ca91cx42.c for the VME core. The
driver seems to have only supported the Universe II for a long time, I have no
hardware to check to see if it would work on the Universe I.

This patch is compile tested with minimal run-time testing. It enables basic
support for slave and master windows and interrupts. The master windows have
undergone basic run testing.

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-09-15 12:02:11 -07:00
Martyn Welch 42fb503122 Staging: vme: add VME Location Monitor management mechanism
Extend the image and DMA channel resource management methods to control the
location monitor resource. The location monitor should be controlled as it can
only be used at a single location at a time.

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-09-15 12:02:11 -07:00
Martyn Welch 400822fec4 Staging: Use proper mutexes in the tsi-148 VME driver
The VME core and tsi-148 driver currently use semaphores as mutexes. Switch to proper
mutex implementation.

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Reviewed-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-09-15 12:02:11 -07:00
Martyn Welch 238add523b Staging: Update VME vme_user module
* Add ifdef wrapper to vme_user.h
 * Correct Initialisation routine
 * Add remove routine to correct probe routine
 * Remove old test routines

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-09-15 12:02:10 -07:00
Martyn Welch 75155020c8 Staging: vme: Add syncronize interrupts before removing callback
As identified by Jiri, there is no syncronisation before callback is removed.

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Cc: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-09-15 12:02:10 -07:00
Emilio G. Cota 51a569f757 Staging: vme: fix {master,slave}_get check bug
It's checking the wrong functions; fix it.

Signed-off-by: Emilio G. Cota <cota@braap.org>
Acked-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-09-15 12:02:10 -07:00
Martyn Welch a37b0dad8b Staging: vme: Extend VME core probing for special matches
Add the ability to define all slots and current slot in the VME buses bind
table.

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-09-15 12:02:10 -07:00
Martyn Welch df45517536 Staging: vme: Correct tsi-148 VME interrupt free routine
As identified by Jiri, the VME interrupt free routine removes the service
routine before disabling the interrupt. Re-order operations to be performed in
the reverse of the request routine.

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Cc: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-09-15 12:02:10 -07:00
Martyn Welch c7ef5da35a Staging: vme: add TODO file
This describes the current vme api, along with a list of things
that needs to be fixed up.

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-09-15 12:02:10 -07:00
Martyn Welch d22b8ed9a3 Staging: vme: add Tundra TSI148 VME-PCI Bridge driver
Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-09-15 12:02:09 -07:00
Martyn Welch 60479690af Staging: vme: add Universe I/II bridge driver
Currently this code doesn't compile, so it is disabled.

That should be fixed up...

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-09-15 12:02:09 -07:00
Martyn Welch f00a86d98a Staging: vme: add VME userspace driver
Adds a VME userspace access driver

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-09-15 12:02:09 -07:00
Martyn Welch a17a75e266 Staging: VME Framework for the Linux Kernel
This framework aims to colelese, extend and improve the VME Linux
drivers found at vmelinux.org, universe2.sourceforge.net and
openfmi.net/frs/?group_id=144. The last 2 drivers appear to be forks of
the original code found at vmelinux.org though have extended the
codebase.

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-09-15 12:02:09 -07:00