Merge branch '2016-02-26-st-drm-next' of http://git.linaro.org/people/benjamin.gaignard/kernel into drm-next

Here are sti patches for drm-next.
It brings:
  - The support of the atomic_check for the planes and minor fixes for
planes
  - The support of the vendor specific infoframe for HDMI and the
support of 2 HDMI properties related to the connector
  - The support of the DVO solving panel detection issue and timing issue.
  - The support of debugfs for connectors, encoders, crtcs and planes.

* '2016-02-26-st-drm-next' of http://git.linaro.org/people/benjamin.gaignard/kernel: (36 commits)
  drm/sti: use u32 to store DMA addresses
  drm: sti: remove sti_gem_prime_export hack
  drm/sti: add debugfs fps_show/fps_get mechanism for planes
  drm/sti: add debugfs entries for TVOUT encoders
  drm/sti: add debugfs entries for MIXER crtc
  drm/sti: add debugfs entries for VID plane
  drm/sti: add debugfs entries for HQVDP plane
  drm/sti: add debugfs entries for GDP planes
  drm/sti: add debugfs entries for CURSOR plane
  drm/sti: add debugfs entries for HDA connector
  drm/sti: add debugfs entries for DVO connector
  drm/sti: add debugfs entries for HDMI connector
  drm/sti: add hdmi_mode property for HDMI connector
  drm/sti: add colorspace property to the HDMI connector
  drm/sti: add HDMI vendor specific infoframe
  drm/sti: reset infoframe transmission when HDMI is stopped
  drm/sti: HDMI infoframe transmission mode not take into account
  drm/sti: reset HD DACS when HDA connector is created
  drm/sti: fix dvo data_enable signal
  drm/sti: adjust delay for DVO
  ...

A few more fixes and cleanups for 4.6:
- DCE code cleanups
- HDP flush/invalidation fixes
- GPUVM fixes
- switch to drm_vblank_[on|off]
- PX fixes
- misc bug fixes

* 'drm-next-4.6' of git://people.freedesktop.org/~agd5f/linux: (50 commits)
  drm/amdgpu: split pipeline sync out of SDMA vm_flush() as well
  drm/amdgpu: Revert "add mutex for ba_va->valids/invalids"
  drm/amdgpu: Revert "add lock for interval tree in vm"
  drm/amdgpu: Revert "add spin lock to protect freed list in vm (v3)"
  drm/amdgpu: reserve the PD during unmap and remove
  drm/amdgpu: Fix two bugs in amdgpu_vm_bo_split_mapping
  drm/radeon: Don't drop DP 2.7 Ghz link setup on some cards.
  MAINTAINERS: update radeon entry to include amdgpu as well
  drm/amdgpu: disable runtime pm on PX laptops without dGPU power control
  drm/radeon: disable runtime pm on PX laptops without dGPU power control
  drm/amd/amdgpu: Fix indentation in do_set_base() (DCEv8)
  drm/amd/amdgpu: make afmt_init cleanup if alloc fails (DCEv8)
  drm/amd/amdgpu: Move config init flag to bottom of sw_init (DCEv8)
  drm/amd/amdgpu: Don't proceed into audio_fini if audio is disabled (DCEv8)
  drm/amd/amdgpu: Fix identation in do_set_base() (DCEv10)
  drm/amd/amdgpu: Make afmt_init cleanup if alloc fails (DCEv10)
  drm/amd/amdgpu: Move initialized flag to bottom of sw_init (DCEv10)
  drm/amd/amdgpu: Don't proceed in audio_fini if disabled (DCEv10)
  drm/amd/amdgpu: Fix indentation in dce_v11_0_crtc_do_set_base()
  drm/amd/amdgpu: Make afmt_init() cleanup if alloc fails (DCEv11)
  ...

Pull request of 2016-03-16

* tag 'vmwgfx-next-160316' of git://people.freedesktop.org/~thomash/linux:
  drm/vmwgfx: Bump driver minor
  drm/vmwgfx: Allow the UPDATE_LAYOUT ioctl from control nodes
  drm/vmwgfx: Send a hotplug event at master_set
  drm/vmwgfx: Default to explicit crtc placement for screen targets and screen objects
  drm/vmwgfx: Calculate the cursor position based on the crtc gui origin
  drm/vmwgfx: Add connector properties to switch between explicit and implicit placement
  drm/vmwgfx: Add suggested screen x and y connector properties
  drm/vmwgfx: Add implicit framebuffer checks to the screen target code
  drm/vmwgfx: Break out implicit fb code
  drm/vmwgfx: Rework screen target page flips v2
  drm/vmwgfx: Fix screen object page flips for large framebuffers
  drm/vmwgfx: Fix a screen object framebuffer dirty corner case
  drm/vmwgfx: Add DXGenMips support

Merge tag 'drm-intel-next-fixes-2016-03-16' of http://anongit.freedesktop.org/git/drm-intel into drm-next

* tag 'drm-intel-next-fixes-2016-03-16' of http://anongit.freedesktop.org/git/drm-intel:
  drm/i915: Handle -EDEADLK in drm_atomic_commit from load-detect.

drm/panel: Changes for v4.6-rc1

This contains a refactoring of parts of the DSI core to allow creating
DSI devices from non-DSI control busses (i.e. I2C, SPI, ...).

Other than that there's support for a couple of new panels as well as
a few cleanup patches.

* tag 'drm/panel/for-4.6-rc1' of http://anongit.freedesktop.org/git/tegra/linux:
  drm/bridge: Make (pre/post) enable/disable callbacks optional
  drm/panel: simple: Add URT UMSH-8596MD-xT panels support
  dt-bindings: Add URT UMSH-8596MD-xT panel bindings
  of: Add United Radiant Technology Corporation vendor prefix
  drm/panel: simple: Support for LG lp120up1 panel
  dt-bindings: Add LG lp120up1 panel bindings
  drm/panel: simple: Fix g121x1_l03 hsync/vsync polarity
  drm/dsi: Get DSI host by DT device node
  drm/dsi: Add routine to unregister a DSI device
  drm/dsi: Try to match non-DT DSI devices
  drm/dsi: Use mipi_dsi_device_register_full() for DSI device creation
  drm/dsi: Check for CONFIG_OF when defining of_mipi_dsi_device_add()

drm/tegra: Changes for v4.6-rc1

Only two cleanups this time around. One fixes reference counting of
device tree nodes, the other changes the return value of a function
from an unsigned int to an int to reflect that it will return error
codes.

* tag 'drm/tegra/for-4.6-rc1' of http://anongit.freedesktop.org/git/tegra/linux:
  gpu: host1x: Use a signed return type for do_relocs()
  gpu: host1x: bus: Add missing of_node_put()

The return type "unsigned int" was used by the do_relocs() function
despite the fact that it will eventually return a negative error code.
Use a signed integer instead to accomodate for error codes.

This issue was detected by using the Coccinelle software.
Signed-off-by: NMarkus Elfring <elfring@users.sourceforge.net>
Signed-off-by: NThierry Reding <treding@nvidia.com>

for_each_child_of_node() performs an of_node_get() on each iteration, so
to break out of the loop an of_node_put() is required.

Found using Coccinelle. The semantic patch used for this is as follows:

// <smpl>
@@
expression e;
local idexpression n;
@@

 for_each_child_of_node(..., n) {
   ... when != of_node_put(n)
       when != e = n
(
   return n;
|
+  of_node_put(n);
?  return ...;
)
   ...
 }
// </smpl>
Signed-off-by: NAmitoj Kaur Chawla <amitoj1606@gmail.com>
Signed-off-by: NThierry Reding <treding@nvidia.com>

signals availability of resolutionKMS support
Signed-off-by: NThomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: NBrian Paul <brianp@vmware.com>
Reviewed-by: NSinclar Yeh <syeh@vmware.com>

gcc-6 warns about code in the nouveau driver that is obviously silly:

drivers/gpu/drm/nouveau/nvkm/engine/pm/nv40.c: In function 'nv40_perfctr_next':
drivers/gpu/drm/nouveau/nvkm/engine/pm/nv40.c:62:19: warning: self-comparison always evaluats to false [-Wtautological-compare]
  if (pm->sequence != pm->sequence) {

The behavior was accidentally introduced in a patch described as "This is
purely preparation for upcoming commits, there should be no code changes here.".
As far as I can tell, that was true for the rest of that patch except for
this one function, which has been changed to a NOP.

This patch restores the original behavior.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Fixes: 8c1aeaa1 ("drm/nouveau/pm: cosmetic changes")
Reviewed-by: NBen Skeggs <bskeggs@redhat.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

* tag 'topic/drm-misc-2016-03-14' of git://anongit.freedesktop.org/drm-intel: (27 commits)
  drm: atomic helper: do not unreference error pointer
  drm/edid: Extract SADs properly from multiple audio data blocks
  drm: fix blob pointer check
  drm: introduce pipe color correction properties
  drm/atomic: Clean up update_connector_routing.
  drm/atomic: Clean up steal_encoder, v2.
  drm/atomic: Handle encoder assignment conflicts in a separate check, v3.
  drm/atomic: Handle encoder stealing from set_config better.
  drm/atomic: Always call steal_encoder, v2.
  drm/ast: removed optional dummy crtc mode_fixup function.
  drm/bochs: removed optional dummy crtc mode_fixup function.
  drm/fsl-dcu: removed optional dummy crtc mode_fixup function.
  drm/virtio: removed optional dummy crtc mode_fixup function.
  drm/nouveau/dispnv04: removed optional dummy crtc mode_fixup function.
  drm/atmel-hlcdc: remove optional dummy crtc mode_fixup function.
  drm/sti: removed optional dummy crtc mode_fixup function.
  drm/shmobile: removed optional dummy crtc mode_fixup function.
  drm/msm/mdp: removed optional dummy crtc mode_fixup function.
  drm/omapdrm: removed optional dummy crtc mode_fixup function.
  drm/rcar-du: removed optional dummy crtc mode_fixup function.
  ...

Merge tag 'drm-amdkfd-next-fixes-2016-03-15' of git://people.freedesktop.org/~gabbayo/linux into drm-next

* tag 'drm-amdkfd-next-fixes-2016-03-15' of git://people.freedesktop.org/~gabbayo/linux:
  drm/amdkfd: uninitialized variable in dbgdev_wave_control_set_registers()

The recent changes which removed platform data support from panels &
encoders had a few mistakes, causing probes of DVI connector and DSI
command mode panels to fail every time due to missing '!'. Fix the
if()s.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>
Reported-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

At the end of the function we expect "status" to be zero, but it's
either -EINVAL or uninitialized.

Fixes: 788bf83d ('drm/amdkfd: Add wave control operation to debugger')
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NOded Gabbay <oded.gabbay@gmail.com>

This pull request covers what's left for 4.6.  Notably, it includes a
significant 3D performance improvement and a fix to HDMI hotplug
detection for the Pi2/3.

* tag 'drm-vc4-next-2016-03-14' of github.com:anholt/linux:
  drm/vc4: Recognize a more specific compatible string for V3D.
  dt-bindings: Add binding docs for V3D.
  drm/vc4: Return -EFAULT on copy_from_user() failure
  drm/vc4: Respect GPIO_ACTIVE_LOW on HDMI HPD if set in the devicetree.
  drm/vc4: Let gpiolib know that we're OK with sleeping for HPD.
  drm/vc4: improve throughput by pipelining binning and rendering jobs

On vmware there is a daemon telling the KMS system about the GUI layout.
Typically it talks to the X server but in the absence of an X server or if
there are multiple, it wants to talk directly to the vmwgfx kernel module.
Signed-off-by: NThomas Hellstrom <thellstrom@vmware.com>

Make sure drm clients (mostly the X server) are communicated the current
layout when switched in.
Signed-off-by: NThomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: NSinclair Yeh <syeh@vmware.com>

Enables using multiple framebuffers. For legacy display units,
explicit crtc placement is not supported due to hardware limitations.
Signed-off-by: NThomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: NSinclair Yeh <syeh@vmware.com>

Base the cursor position on the coordinate of the crtc origin in the
gui coordinate system rather than in the framebuffer coordinate system.

With explicit placement, these may differ (for example when two crtcs
scan out of the same framebuffer location).
Signed-off-by: NThomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: NSinclair Yeh <syeh@vmware.com>

Signed-off-by: NThomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: NSinclair Yeh <syeh@vmware.com>

Introduced by qxl, add these properties as a generic way to tell a
display manager about the GUI layout.

Also add the hotplug_mode_update_property which advises display managers to
reread the mode list on a hotplug event.
Signed-off-by: NThomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: NJakob Bornecrantz <jakob@vmware.com>

Just like for screen objects, make sure we use only a single framebuffer
for implicit placement.
Signed-off-by: NThomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: NSinclair Yeh <syeh@vmware.com>

Preparation for supporting explicit fbs for screen objects and screen
targets.
Signed-off-by: NThomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: NSinclair Yeh <syeh@vmware.com>

Gnome-Shell / Wayland assumes that page-flips can be done on a crtc
regardless of framebuffer size and the crtc position within the
framebuffer.

Therefore rework the screen target code to correctly handle changes in
framebuffer size and content_fb_type. Also make sure that we update
the screen target correctly when the content_fb_type is not
SAME_AS_DISPLAY.

This commit breaks out the framebuffer binding code from crtc_set so it
can be used both from page_flip() and crtc_set() and reworks those
functions a bit to be more robust.

v2: Address review comments by Sinclair Yeh.
Signed-off-by: NThomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: NSinclair Yeh <syeh@vmware.com>

For page flips the framebuffer may be much larger than the crtc
scanout area and may be attached to multiple crtcs.
When flipping a crtc, make sure we dirty only that crtc's area of the
framebuffer.
Signed-off-by: NThomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: NSinclair Yeh <syeh@vmware.com>

If there are no cliprects for a particular crtc, an invalid command would
have been generated. If that's the case, instead ditch the generated
command sequence.
Signed-off-by: NThomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: NSinclair Yeh <syeh@vmware.com>

Add support for DXGenMips command.
Signed-off-by: NCharmaine Lee <charmainel@vmware.com>
Reviewed-by: NSinclair Yeh <syeh@vmware.com>
Reviewed-by: NThomas Hellstrom <thellstrom@vmware.com>

CI runs with DEBUG_WW_MUTEX_SLOWPATH, so -EDEADLK occurs a lot more.
Handle the case where drm_atomic_commit fails with -EDEADLK correctly.
Signed-off-by: NMaarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/56D3FEF1.6070306@linux.intel.comReviewed-by: NVille Syrjälä <ville.syrjala@linux.intel.com>
(cherry picked from commit 3ba86073)
Signed-off-by: NJani Nikula <jani.nikula@intel.com>

The Raspberry Pi Foundation's firmware updates are shipping device
trees using the old string, so we'll keep recognizing that as this rev
of V3D.  Still, we should use a more specific name in the upstream DT
to clarify which board is being supported, in case we do other revs of
V3D in the future.
Signed-off-by: NEric Anholt <eric@anholt.net>
Acked-by: NStephen Warren <swarren@wwwdotorg.org>

This was missed in the upstreaming process.
Signed-off-by: NEric Anholt <eric@anholt.net>
Acked-by: NStephen Warren <swarren@wwwdotorg.org>

- GM20x secure boot support (hence, acceleration, finally \o/)
- GM200 support
- GM20B clock driver
- Support for power sensors on some GPUs
- Various other fixes all over the place

* 'linux-4.6' of git://github.com/skeggsb/linux: (95 commits)
  drm/nouveau/clk/gm20b: add basic driver
  drm/nouveau/clk/gk20a: share reusable structures/functions
  drm/nouveau/clk/gk20a: set lowest frequency during init()
  drm/nouveau/clk/gk20a: split gk20a_clk_new()
  drm/nouveau/clk/gk20a: abstract pl_to_div
  drm/nouveau/clk/gk20a: put mnp values into their own struct
  drm/nouveau/clk/gk20a: emit parent rate as debug message
  drm/nouveau/clk/gk20a: only restore divider to 1:1 if needed
  drm/nouveau/clk/gk20a: only compute n_lo if needed
  drm/nouveau/clk/gk20a: fix VCO bit mask
  drm/nouveau/clk/gk20a: rename enable/disable functions
  drm/nouveau/clk/gk20a: reorganize variables in gk20a_pllg_calc_mnp()
  drm/nouveau/clk/gk20a: convert parameters to Khz
  drm/nouveau/volt: add GM20B driver
  drm/nouveau/volt/gk20a: split constructor
  drm/nouveau/volt/gk20a: share reusable members & functions
  drm/nouveau/ce/gm107: expose MaxwellDmaCopyA
  drm/nouveau/fifo/gm107: KeplerChannelGpfifoB, and 2048 channels
  drm/nouveau/fifo/gk110: expose KeplerChannelGpfifoB
  drm/nouveau/fifo/gk104: submit NOP after all PBDMA_INTR_0, not just DEVICE
  ...

Add a basic clock driver that reuses the GK20A logic.
Signed-off-by: NAlexandre Courbot <acourbot@nvidia.com>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Make functions/structures that the GM20B driver will reuse public.
Signed-off-by: NAlexandre Courbot <acourbot@nvidia.com>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Err on the safe side by setting the lowest frequency (and thus voltage)
during device init.
Signed-off-by: NAlexandre Courbot <acourbot@nvidia.com>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

This allows to instanciate drivers that use the same logic as gk20a with
different parameters.

Add a constructor function to allow other chips that inherit from this
clock to easily initialize its members
Signed-off-by: NAlexandre Courbot <acourbot@nvidia.com>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

pl_to_div may be done differently depending on the chip. Abstract this
operation so the same logic can be reused for them as well.
Signed-off-by: NAlexandre Courbot <acourbot@nvidia.com>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

This allows us to read them using one single function and will be handy
to the GM20B driver.
Signed-off-by: NAlexandre Courbot <acourbot@nvidia.com>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Most users are probably not interested in this information.
Signed-off-by: NAlexandre Courbot <acourbot@nvidia.com>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Only restore the 1:1 divider if it is not set already. Also use the
proper masks for this operation and add a second write as done in the
Android code.
Signed-off-by: NAlexandre Courbot <acourbot@nvidia.com>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

n_lo is used if we are going to slide. Compute it only if that condition
succeeds to avoid confusion about future usage of this computation.
Signed-off-by: NAlexandre Courbot <acourbot@nvidia.com>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>