Move the source files out of staging into their final locations:
  -mc.h include file in drivers/staging/fsl-mc/include go to include/linux/fsl
  -source files in drivers/staging/fsl-mc/bus go to drivers/bus/fsl-mc
  -overview.rst, providing an overview of DPAA2, goes to
   Documentation/networking/dpaa2/overview.rst

Update or delete other remaining staging files -- Makefile, Kconfig, TODO.
Update dpaa2_eth and dpio staging drivers.
Add integration bits for the documentation build system.
Signed-off-by: Stuart Yoder <stuyoder@gmail.com>
[rebased, add dpaa2_eth and dpio #include updates]
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
[rebased, split irqchip to separate patch]
Signed-off-by: Bogdan Purcareata <bogdan.purcareata@nxp.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The fsl-mc bus and dpio driver files use a combination of GPL-2.0 and
GPL-2.0+ OR BSD-3-Clause licenses. Add SPDX tags and delete the full
license text, keeping the existing license for each file. Add GPL-2.0
for Kconfig / Makefile, where not present.
Signed-off-by: Bogdan Purcareata <bogdan.purcareata@nxp.com>
Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The DPAA2 objects involved (DPMNG, DPMCP, DPRC) are used by the fsl-mc
bus infrastructure only, so group the APIs and structs into
fsl-mc-private.h.
Signed-off-by: Bogdan Purcareata <bogdan.purcareata@nxp.com>
Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Following is the current scenario when the devices are probed:

  FSL_MC Bus probe ---> dprc probe ---> dprc devices scan --->
    probe devices in DPRC container ---> allocate IRQ's

In case the devices being probed in the DPRC container need the IRQ's;
probing of that device will fail.

In current scenario the devices which need IRQ's such as DPIO gets
deferred because they aren't registered when first time the probing
of these devices is done in the dprc scan.
So they are probed once IRQ's have been allocated.

In case where DPRC probing itself gets deferred, which does in case
IOMMU is enabled; all the devices in DPRC container gets probed before
IRQ's are allocated. This causes devices using IRQ's (such as DPIO)
to fail.

So having IRQ's allocated before any of the devices in the DPRC container
are probed is more legitimate.

After this patch following is the flow of execution:

  FSL_MC Bus probe ---> dprc probe ---> dprc devices scan --->
    allocate IRQ's ---> probe of devices in DPRC container.
Signed-off-by: Nipun Gupta <nipun.gupta@nxp.com>
Reviewed-by: Bharat Bhushan <bharat.bhushan@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Replace strcmp() based device type checks with the standard device
model type.
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

A lot of error checks are doubled by debug WARN_ONs. Given that the
driver was thoroughly debugged and is in a stable state, it's time to
drop them.
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

These WARN_ONs shouldn't trigger unless something went very wrong.
Since the driver is in a stable state let's remove these debug
WARN_ONs.
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Throughout the driver we use == 0 / != 0 to check strcmp() returns except
this place, so fix it.
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Use resource_size() function on resource objects instead of
explicit computation.

This patch fixes the following coccinelle warning:

drivers/staging/fsl-mc/bus/dprc-driver.c:620:35-38: ERROR: Missing
resource_size with mc_dev -> regions
Signed-off-by: Cihangir Akturk <cakturk@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

mc-sys.h contains the API to send commands to the MC and is used
by drivers. Move it to the public headers and get rid of the mc-sys.h
header.
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

All the mc-bus.h contents is only used privately in the bus driver so
move everything to the private header and get rid of the mc-bus.h
header file.
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

They are never used outside the source they are implemented in and very
likely never will, so it's safe to make them static.
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

In its current form, the public headers of the mc-bus depend only on a
structure "dprc_obj_desc" defined in dprc.h. Move it to the bus public
header together with its associated defines and, in order to keep the
naming prefixes consistent rename it to "fsl_mc_obj_desc".
This will allow making dprc.h private in future patches.
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Move comparison before the strcmp() in this if statement, and slightly
increase efficiency by not making the strcmp() each time the if gets
evaluated but only when the comparison is true.
This was suggested in a review comment.
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

This reverts commit c6ce019e.

The whole series is broken, so back it all out.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Cc: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

This reverts commit 10a8593a.

The whole series is broken, so back it all out.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Cc: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

This reverts commit af437671.

The whole series is broken, so back it all out.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Cc: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

This reverts commit 7d6e221d.

The whole series is broken, so back it all out.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Cc: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

mc-sys.h contains the API to send commands to the MC and is used
by drivers. Move it to the public headers and get rid of the mc-sys.h
header.
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

All the mc-bus.h contents is only used privately in the bus driver so
move everything to the private header and get rid of the mc-bus.h
header file.
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

They are never used outside the source they are implemented in and very
likely never will, so it's safe to make them static.
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

In its current form, the public headers of the mc-bus depend only on a
structure "dprc_obj_desc" defined in dprc.h. Move it to the bus public
header together with its associated defines and, in order to keep the
naming prefixes consistent rename it to "fsl_mc_obj_desc".
This will allow making dprc.h private in future patches.
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Several macros were triggering this checkpatch.pl warning:
  "Macro argument reuse '$arg' - possible side-effects?"
Fix the warning by turning them into real functions.
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Fixing recommendation from checkpatch.pl:
"CHECK: Alignment should match open parenthesis"
Signed-off-by: Brett Hitchcock <bretth256@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Drop unneeded get_device() call at device creation
and, as per documentation, drop reference count
after using device_find_child() return.
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Acked-by: Stuart Yoder <stuart.yoder@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

DPAA2 will not support MC firmware versions prior to MC v10.x.
Update the MC interface code and drivers to reflect this.
   -update the object .h files and code that builds commands to include
    the new command version in the command header
   -object versions are no longer available in the object attributes,
    so remove references to them and instead get the version from the
    new get_api_version() command
   -create/destroy commands for all objects have new arguments
   -dpmng_get_container_id() is replaced by dprc_get_container_id()

This supports a hardware ABI change and thus to match the new ABI
all the above changes need to happen in a single patch.

All MC firmware versions >= 10 will be supported going forward.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Many source files have evolved without copyright date
updates.  Update the dates to reflect work through
2016.
Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

improve readibility of the DPRC interrupt name in sysfs by
shortening this and just using the device name.  There is only
one interrupt DPRC used, so no further differentiation is needed.
Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

There are 3 kinds of headers included in the bus driver components--
misc linux/include files, public bus driver includes, and includes
private to the bus driver.

Cleanup the order and formatting of includes in the bus driver to be
consistent:
    #include <linux/include/[file].h>
    #include ../include/[file].h  // public bus driver includes (eventually
                                  // destined for: linux/include/fsl)
    [blank line]
    #include "[file].h"           // private bus driver includes
Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Move definitions that are private to dprc-driver.c out of the
public mc-bus.h header.
Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The mc-bus.h header file is intended to be public for system related
drivers that may need to make fsl-mc bus specific calls-- gic its,
smmu, vfio.  But, currently it contains definitions private/internal
to the fsl-mc bus itself.  Split those definitions out into a new
fsl-mc bus private header.
Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The resource pool init/cleanup functions logically belong in the
allocator.  Move them to the allocator and rename to reflect the
move out of the dprc-driver.
Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The definitions in mc-private.h are not strictly speaking
'private', they are bus-related definitions expected to be
referenced by bus driver components as well as system components
(gic, smmu, vfio).  Rename mc-private.h to mc-bus.h to more
accurately reflect expected use.
Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Add a helper macro to return if a device has a bus type of fsl_mc.
This makes the bus driver code more readable and provides a way for
drivers like the SMMU driver to easily check the bus type.
Signed-off-by: Nipun Gupta <nipun.gupta@nxp.com>
Signed-off-by: Bharat Bhushan <bharat.bhushan@nxp.com>
Acked-by: Stuart Yoder <stuart.yoder@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

When unbinding a dprc from the dprc driver the cleanup of
the resource pools must happen after irq pool cleanup
is done.
Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

add missing free of the Linux irq when tearing down interrupts
Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

An mc_io represents a mapped MC portal.  Previously, an mc_io was
created for the root dprc in fsl_mc_bus_probe() and for child dprcs
in dprc_probe().  But the free of that data structure happened in the
general bus remove callback.  This asymmetry resulted in some bugs due
to unwanted destroys of mc_io object in some scenarios (e.g. vfio).

Fix this bug by making things symmetric-- mc_io created in
fsl_mc_bus_probe() is freed in fsl_mc_bus_remove().  The mc_io created
in dprc_probe() is freed in dprc_remove().
Signed-off-by: Bharat Bhushan <Bharat.Bhushan@nxp.com>
[Stuart: added check for root dprc and reworded commit message]
Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

-rename the struct used for fsl-mc device ids to be more
 consistent with other busses
-remove the now obsolete and unused version fields
Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

dpseci objects < 4.0 are not coherent-- in spite of the fact
that the MC reports them to be coherent in certain versions.
Add a special case to set the no shareability flag for dpseci
objects < 4.0.
Signed-off-by: Horia Geanta <horia.geanta@nxp.com>
(Stuart: reworded commit message, updated comment in patch)
Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com>
Acked-by: German Rivera <german.rivera@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The dprc driver supports dprc version 5.0 and above.
This patch adds the code to check the version.
Signed-off-by: Itai Katz <itai.katz@nxp.com>
(Stuart: resolved merge conflicts, split dpseci quirk into separate patch)
Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com>
Acked-by: German Rivera <german.rivera@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>