More drm-next bits for radeon.  Just bug fixes.

* 'drm-next-3.9' of git://people.freedesktop.org/~agd5f/linux:
  drm/radeon: properly validate the atpx interface
  drm/radeon: switch get_gpu_clock() to a callback (v2)
  drm/radeon: add a asic callback to get the xclk
  drm/radeon: Avoid NULL pointer dereference from atom_index_iio() allocation failure
  drm/radeon: remove overzealous warning in hdmi handling
  drm/radeon: fix multi-head power profile stability on BTC+ asics

Merge branch 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-next

restore debugfs vbios, fix multiple actions with supervisor intrs

* 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6:
  drm/nouveau: restore debugfs/vbios.rom support
  drm/nv50-/kms: remove UPDATE methods after each encoder disconnect
  drm/nvd0/disp: handle multiple actions from one set of supervisor intrs
  drm/nv50/disp: handle multiple actions from one set of supervisor intrs

Some bioses don't set the function mask correctly
which caused required functions to be disabled.

Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=53111Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

Cleans up the code for future asics

v2: rebase, fix some missing radeon_asic updates
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

This is required to get the reference clock used
by the gfx engine for things like timestamps. Fixes
support for GL extensions the use timestamps on
certain boards.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Smatch anlysis:

drivers/gpu/drm/radeon/atom.c:1242 atom_index_iio() error: potential null
 dereference 'ctx->iio'.  (kzalloc returns null)

Also cleaned up some checks before calls to kfree(). kfree(NULL) is OK.

Cc: David Airlie <airlied@linux.ie>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Michel Dänzer" <michel.daenzer@amd.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

hdmi audio works fine.  The warning just confuses users.

fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=44341Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Cc: stable@vger.kernel.org

vddci needs to track mclk for multi-head.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>

Supervisor can now handle more than one operation within a single
series of interrupts.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

In v3.3, the gma500 drm driver moved from staging to drm group by
Alan Cox's 3abcf41f patch. the gma500 drm driver should control
brightness well and don't need gma500 stub driver anymore.

Reference:
http://lists.freedesktop.org/archives/dri-devel/2012-May/023426.html
http://lists.freedesktop.org/archives/dri-devel/2012-May/023467.htmlAcked-by: Matthew Garrett <mjg59@srcf.ucam.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Lee, Chun-Yi <jlee@suse.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

Merge branch 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-next

Nothing terribly exciting in here probably:
- reworked thermal stuff from mupuf/I, has a chance of possibly working
well enough when we get to being able to reclock..
- driver will report mmio access faults on chipsets where it's supported
- will now sleep waiting on fences on nv84+ rather than polling
- some cleanup of the internal fencing, looking towards sli/dmabuf sync
- initial support for anx9805 dp/tmds encoder
- nv50+ display fixes related to the above, and also might fix a few
other issues
- nicer error reporting (will log process names with channel errors)
- various other random fixes

* 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6: (87 commits)
  nouveau: ACPI support depends on X86 and X86_PLATFORM_DEVICES
  drm/nouveau/i2c: add support for ddc/aux, and dp link training on anx9805
  drm/nv50: initial kms support for off-chip TMDS/DP encoders
  drm/nv50-/disp: initial supervisor support for off-chip encoders
  drm/nv50-/disp: initial work towards supporting external encoders
  drm/nv50-/kms: remove unnecessary wait-for-completion points
  drm/nv50-/disp: move DP link training to core and train from supervisor
  drm/nv50-/disp: handle supervisor tasks from workqueue
  drm/nouveau/i2c: create proper chipset-specific class implementations
  drm/nv50-/disp: 0x0000 is a valid udisp config value
  drm/nv50/devinit: reverse the logic for running encoder init scripts
  drm/nouveau/bios: store a type/mask hash in parsed dcb data
  drm/nouveau/i2c: extend type to 16-bits, add lookup-by-type function
  drm/nouveau/i2c: aux channels not necessarily on nvio
  drm/nouveau/i2c: fix a bit of a thinko in nv_wri2cr helper functions
  drm/nouveau/bios: parse external transmitter type if off-chip
  drm/nouveau: store i2c port pointer directly in nouveau_encoder
  drm/nouveau/i2c: handle i2c/aux mux outside of port lookup function
  drm/nv50/graph: avoid touching 400724, it doesn't exist
  drm/nouveau: Fix DPMS 1 on G4 Snowball, from snow white to coal black.
  ...

If I build nouveau on ia64, Kconfig warns:

warning: (DRM_NOUVEAU) selects ACPI_WMI which has unmet direct dependencies (X86 && X86_PLATFORM_DEVICES && ACPI)
warning: (DRM_NOUVEAU) selects MXM_WMI which has unmet direct dependencies (X86 && X86_PLATFORM_DEVICES && ACPI_WMI)

Make all the ACPI support depend on X86 and select
X86_PLATFORM_DEVICES.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

DP link training is now handled as part of the supervisor processing,
and can no longer race with it.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

We need to be able to do link training for PIOR-connected ANX9805 from
the third supervisor handler (due to script ordering in the bios, can't
have the "user" call train because some settings are overwritten from
the modesetting bios scripts).

This moves link training for SOR-connected DP encoders to the second
supervisor interrupt, *before* we call the modesetting scripts (yes,
different ordering from PIOR is necessary).  This is useful since we
should now be able to remove some hacks to workaround races between
the supervisor and link training paths.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

i2c_algo_bit sleeps...
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Return an out-of-range value instead to signal a failure from
exec_clkcmp().
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

A single U encoder table can match multiple DCB entries, whereas the
reverse is not true and can lead to us not matching a DCB entry at
all, and fail to initialise some encoders.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Matches format used by a couple of other vbios tables, useful
to have laying around already calculated.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

For off-chip transmitters we won't necessarily have an i2c table entry
to lookup, but we can do it instead by encoding the type to include
the extdev type and looking that up instead.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

This is about to become somewhat more complicated to determine in a
number of cases, so store the "common" case (DDC/AUX) directly inside
the encoder structure.

Pre-nv50 code not touched except to fill the pointer, don't care.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Not quite how I want it yet, but, I'll fix that at some point.  For
right now, it's needed because find() won't necessarily be used right
before a transaction anymore.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Harmless, but we now get MMIO fault reports, so silence it.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Fixes https://bugs.freedesktop.org/show_bug.cgi?id=40275.
Signed-off-by: Stefan de Konink <stefan@konink.de>
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

"data" is a void pointer and "args" is "data" after we have casted it to
a struct.  We care about the size of the struct here.  Btw,
sizeof(*data) is 1.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

A step towards being able to provide fences from other engines not
connected to PFIFO.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Now can be used to operate on any buffer mapped into the GPU virtual
address and not just the main inter-channel sync buffer.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Allows most of the code to be shared between nv84/nvc0 implementations,
and paves the way for doing emit/sync on non-VRAM buffers (multi-gpu,
dma-buf).
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>