Merge tag 'exynos-drm-next-for-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next

Summary:
- Provide NV12MT pixel format support of Mixer driver in generic way.
- Refactor Exynos KMS drivers
  . Refactoring to panel detection way
  . Refactoring to setting up possible_crtcs
  . Refactoring to video and command mode support
- Some cleanups

* tag 'exynos-drm-next-for-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
  drm/exynos: simplify set_pixfmt() in DECON and FIMD drivers
  drm/exynos: consistent use of cpp
  drm/exynos: mixer: remove src offset from mixer_graph_buffer()
  drm/exynos: mixer: simplify mixer_graph_buffer()
  drm/exynos: mixer: simplify vp_video_buffer()
  drm/exynos: mixer: enable NV12MT support for the video plane
  drm/exynos: mixer: fix chroma comment in vp_video_buffer()
  arm64: dts: exynos: remove i80-if-timings nodes
  dt-bindings: exynos5433-decon: remove i80-if-timings property
  drm/exynos/decon5433: use mode info stored in CRTC to detect i80 mode
  drm/exynos: add mode_valid callback to exynos_drm
  drm/exynos/decon5433: refactor irq requesting code
  drm/exynos/mic: use mode info stored in CRTC to detect i80 mode
  drm/exynos/dsi: propagate info about command mode from panel
  drm/exynos/dsi: refactor panel detection logic
  drm/exynos: use helper to set possible crtcs
  drm/exynos/decon5433: use readl_poll_timeout helpers

Merge tag 'drm-misc-next-fixes-2017-08-28' of git://anongit.freedesktop.org/git/drm-misc into drm-next

UAPI Changes:
- Rename u32 to __u32 in struct drm_format_modifier_blob (Lionel)

Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>

* tag 'drm-misc-next-fixes-2017-08-28' of git://anongit.freedesktop.org/git/drm-misc:
  drm: rename u32 in __u32 in uapi

This IOCTL provides a mechanism for userspace to trigger a sync object
directly.  There are other ways that userspace can trigger a syncobj
such as submitting a dummy batch somewhere or hanging on to a triggered
sync_file and doing an import.  This just provides an easy way to
manually trigger the sync object without weird hacks.

The motivation for this IOCTL is Vulkan fences.  Vulkan lets you create
a fence already in the signaled state so that you can wait on it
immediatly without stalling.  We could also handle this with a new
create flag to ask the driver to create a syncobj that is already
signaled but the IOCTL seemed a bit cleaner and more generic.

v2:
 - Take an array of sync objects (Dave Airlie)
v3:
 - Throw -EINVAL if pad != 0
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>

This just resets the dma_fence to NULL so it looks like it's never been
signaled.  This will be useful once we add the new wait API for allowing
wait on "submit and signal" behavior.

v2:
 - Take an array of sync objects (Dave Airlie)
v3:
 - Throw -EINVAL if pad != 0
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Christian König <christian.koenig@amd.com> (v1)
Signed-off-by: Dave Airlie <airlied@redhat.com>

The wait ioctl has a bunch of code to read an syncobj handle array from
userspace and turn it into an array of syncobj pointers.  We're about to
add two new IOCTLs which will need to work with arrays of syncobj
handles so let's make some helpers.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>

Vulkan VkFence semantics require that the application be able to perform
a CPU wait on work which may not yet have been submitted.  This is
perfectly safe because the CPU wait has a timeout which will get
triggered eventually if no work is ever submitted.  This behavior is
advantageous for multi-threaded workloads because, so long as all of the
threads agree on what fences to use up-front, you don't have the extra
cross-thread synchronization cost of thread A telling thread B that it
has submitted its dependent work and thread B is now free to wait.

Within a single process, this can be implemented in the userspace driver
by doing exactly the same kind of tracking the app would have to do
using posix condition variables or similar.  However, in order for this
to work cross-process (as is required by VK_KHR_external_fence), we need
to handle this in the kernel.

This commit adds a WAIT_FOR_SUBMIT flag to DRM_IOCTL_SYNCOBJ_WAIT which
instructs the IOCTL to wait for the syncobj to have a non-null fence and
then wait on the fence.  Combined with DRM_IOCTL_SYNCOBJ_RESET, you can
easily get the Vulkan behavior.

v2:
 - Fix a bug in the invalid syncobj error path
 - Unify the wait-all and wait-any cases
v3:
 - Unify the timeout == 0 case a bit with the timeout > 0 case
 - Use wait_event_interruptible_timeout
v4:
 - Use proxy fence
v5:
 - Revert to a combination of v2 and v3
 - Don't use proxy fences
 - Don't use wait_event_interruptible_timeout because it just adds an
   extra layer of callbacks
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Christian König <christian.koenig@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

This requests that the driver create the sync object such that it
already has a signaled dma_fence attached.  Because we don't need
anything in particular (just something signaled), we use a dummy null
fence.  This is useful for Vulkan which has a similar flag that can be
passed to vkCreateFence.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>

It is useful in certain circumstances to know when the fence is replaced
in a syncobj.  Specifically, it may be useful to know when the fence
goes from NULL to something valid.  This does make syncobj_replace_fence
a little more expensive because it has to take a lock but, in the common
case where there is no callback list, it spends a very short amount of
time inside the lock.

v2:
 - Don't lock in drm_syncobj_fence_get.  We only really need to lock
   around fence_replace to make the callback work.
v3:
 - Fix the cb_list comment to make kbuild happy
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>

This interface will allow sync object to be used to back
Vulkan fences. This API is pretty much the vulkan fence waiting
API, and I've ported the code from amdgpu.

v2: accept relative timeout, pass remaining time back
to userspace.
v3: return to absolute timeouts.
v4: absolute zero = poll,
    rewrite any/all code to have same operation for arrays
    return -EINVAL for 0 fences.
v4.1: fixup fences allocation check, use u64_to_user_ptr
v5: move to sec/nsec, and use timespec64 for calcs.
v6: use -ETIME and drop the out status flag. (-ETIME
is suggested by ickle, I can feel a shed painting)
v7: talked to Daniel/Arnd, use ktime and ns everywhere.
v8: be more careful in the timeout calculations
    use uint32_t for counter variables so we don't overflow
    graciously handle -ENOINT being returned from dma_fence_wait_timeout
Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>

The atomic exchange operation in drm_syncobj_replace_fence is sufficient
for the case where it races with itself.  However, if you have a race
between a replace_fence and dma_fence_get(syncobj->fence), you may end
up with the entire replace_fence happening between the point in time
where the one thread gets the syncobj->fence pointer and when it calls
dma_fence_get() on it.  If this happens, then the reference may be
dropped before we get a chance to get a new one.  The new helper uses
dma_fence_get_rcu_safe to get rid of the race.

This is also needed because it allows us to do a bit more than just get
a reference in drm_syncobj_fence_get should we wish to do so.

v2:
 - RCU isn't that scary
 - Call rcu_read_lock/unlock
 - Don't rename fence to _fence
 - Make the helper static inline
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Acked-by: Christian König <christian.koenig@amd.com> (v1)
Signed-off-by: Dave Airlie <airlied@redhat.com>

The function has far more in common with drm_syncobj_find than with
any in the get/put functions.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Acked-by: Christian König <christian.koenig@amd.com> (v1)
Signed-off-by: Dave Airlie <airlied@redhat.com>

Currently the hikey dsi logic cannot generate accurate byte
clocks values for all pixel clock values. Thus if a mode clock
is selected that cannot match the calculated byte clock, the
device will boot with a blank screen.

This patch uses the new mode_valid callback (many thanks to
Jose Abreu for upstreaming it!) to ensure we don't select
modes we cannot generate.

Also, since the ade crtc code will adjust the mode in mode_set,
this patch also adds a mode_fixup callback which we use to make
sure we are validating the mode clock that will eventually be
used.

Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: David Airlie <airlied@linux.ie>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Xinliang Liu <xinliang.liu@linaro.org>
Cc: Xinliang Liu <z.liuxinliang@hisilicon.com>
Cc: Rongrong Zou <zourongrong@gmail.com>
Cc: Xinwei Kong <kong.kongxinwei@hisilicon.com>
Cc: Chen Feng <puck.chen@hisilicon.com>
Cc: Jose Abreu <Jose.Abreu@synopsys.com>
Cc: Archit Taneja <architt@codeaurora.org>
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Reviewed-by: Xinliang Liu <xinliang.liu@linaro.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

All other fields use __

Cc: Ben Widawsky <ben@bwidawsk.net>
Fixes: db1689aa ("drm: Create a format/modifier blob")
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Signed-off-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170824150814.5878-1-lionel.g.landwerlin@intel.com

DRM core already checks the validity of the pixelformat.
Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

A recent commit (272725c7) has removed
the use of 'bits_per_pixel' in DRM. However the corresponding Exynos
driver code still uses the ambiguous 'bpp', even though it is now
initialized from fb->cpp[0].

Consistenly use 'cpp' in FIMD, DECON7 and DECON5433 drivers.
Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>

We always translate the dma address such that the offsets of
the source image are zero. Hence we can remove manipulation of
the MXR_GRAPHIC_SXY(win) register and just zero them once
in mixer_win_reset().
Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

DRM core already checks in drm_atomic_plane_check() if the
pixelformat is valid. Hence we can collapse the default case
of the switch statement with the XRGB8888 case.

No functional change.
Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

DRM core already checks in drm_atomic_plane_check() if the
pixelformat is valid. Hence we can drop the default case of
the switch statement and collapse most of the code.

Also rename the two booleans to reflect what true/false
actually means, and to avoid mixing CrCb/NV21 descriptions.

No functional change.
Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

The video processor supports a tiled version of the NV12 format,
known as NV12MT in V4L2 terms. The support was removed in commit
083500ba due to not being a real
pixel format, but rather NV12 with a special memory layout.

With the introduction of FB modifiers, we can now properly support
this format again.

Tested with a hacked up modetest from libdrm's test suite on
an ODROID-X2 (Exynos4412).
Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

The current comment sounds like the division op is done to
compensate for some hardware erratum. But the chroma plane
having half the height of the luma plane is just the way
NV12/NV21 is defined, so clarify this behaviour.
Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

Since i80/command mode is determined in runtime by propagating info
from panel this property can be removed.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

Since i80/command mode is determined in runtime by propagating info
from panel this property can be removed.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

Since panel's mode of work is propagated properly from panel to DECON,
there is no need to use redundant private device tree property.
The only issue with such approach is that check for required interrupts
should be postponed until panel communicate its requirements, ie to
mode validation phase - mode_valid callback.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>

crtc::mode_valid callback is required to implement proper pipeline
validation for command/video modes. Since Exynos uses private
framework such callback should be added to it.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

To allow runtime validation of mode of work irq request
code should be split into two separate phases:
- irq reqesting,
- irq checking.
Following patches will move 2nd phase to mode validation phase.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

MIC driver should use info from CRTC to check mode of work instead of
illegally peeking into nodes of other devices.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

mipi_dsi framework provides information about panel's mode of work.
This info should be propagated upstream to configure all elements of
the pipeline. As CRTC is the common denominator of the pipeline we can
put such info into its structures.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

Description of drm_helper_hpd_irq_event clearly states that drivers
supporting hotplug events per connector should use different helper -
drm_kms_helper_hotplug_event. To achieve it following changes have
been performed:
- moved down all DSI ops - they require exynos_dsi_disable function
to be defined earlier,
- simplified exynos_dsi_detect - there is no real detection, it just
returns if panel is attached,
- DSI attach/detach callbacks attaches/detaches DRM panel and sets
connector status and other context fields accordingly, all this is
performed under mutex, as these callbacks are asynchronous.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

All encoders share the same code to set encoders possible_crtcs field.
The patch creates helper to abstract out this code.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

Linux core provide helpers for polling with timeout, lets use them.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

Merge tag 'sunxi-drm-for-4.14-2' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into drm-next

sun4i DRM changes for 4.14, take 2

A single patch switching to a new OF helper.

* tag 'sunxi-drm-for-4.14-2' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
  drm/sun4i: use of_graph_get_remote_endpoint()

Merge tag 'omapdrm-4.14-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux into drm-next

omapdrm fixes for 4.14

* fix compilation when compiling omapfb driver
* WA for OMAP3 endless sync lost issue
* WA for OMAP5 DSI PLL issue
* fix analog TV out modecheck

* tag 'omapdrm-4.14-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux:
  ARM: OMAP2+: fix missing variable declaration
  drm/omap: work-around for omap3 display enable
  drm/omap: fix i886 work-around
  drm/omap: fix analog tv-out modecheck

Updates for 4.14..  I have some further patches from Jordan to add
multiple priority levels and pre-emption, but those will probably be
for 4.15 to give me time for the mesa parts.

* tag 'drm-msm-next-2017-08-22' of git://people.freedesktop.org/~robclark/linux:
  drm/msm/mdp5: mark runtime_pm functions as __maybe_unused
  drm/msm: remove unused variable
  drm/msm/mdp5: make helper function static
  drm/msm: make msm_framebuffer_init() static
  drm/msm: add helper to allocate stolen fb
  drm/msm: don't track fbdev's gem object separately
  drm/msm: add modeset module param
  drm/msm/mdp5: add tracking for clk enable-count
  drm/msm: remove unused define
  drm/msm: Add a helper function for in-kernel buffer allocations
  drm/msm: Attach the GPU MMU when it is created
  drm/msm: Add A5XX hardware fault detection
  drm/msm: Remove uneeded platform dev members
  drm/msm/mdp5: Set up runtime PM for MDSS
  drm/msm/mdp5: Write to SMP registers even if allocations don't change
  drm/msm/mdp5: Don't use mode_set helper funcs for encoders and CRTCs
  drm/msm/dsi: Implement RPM suspend/resume callbacks
  drm/msm/dsi: Set up runtime PM for DSI
  drm/msm/hdmi: Set up runtime PM for HDMI
  drm/msm/mdp5: Use runtime PM get/put API instead of toggling clocks

The function that was added doesn't actually build:

arch/arm/mach-omap2/display.c: In function 'omapdss_init_fbdev':
arch/arm/mach-omap2/display.c:184:2: error: 'r' undeclared (first use in this function)

This adds a declaration for 'r' to fix it.

Fixes: 5ce78302 ("ARM: OMAP2+: Don't register omapdss device for omapdrm")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

Now, we can use of_graph_get_remote_endpoint(). Let's use it.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

Seems that on omap3 enabling a crtc without any planes causes a sync
lost flood. This only happens on the first enable, and after that it
works. This looks like an HW issue and it's unclear why this is
happening or how to fix it.

This started happening after 897145d0
("drm/omapdrm: Move commit_modeset_enables() before commit_planes()")
which, as a work-around, changed omapdrm first to do the modeset enable,
and plane set only after that. This WA should be fine on all DSS
versions, but apparently OMAP3 DSS is an exception.

This patch reverts that work-around for OMAP3 DSS.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

7d267f06 ("drm/omap: work-around for
errata i886") changed how the PLL dividers and multipliers are
calculated. While the new way should work fine for all the PLLs, it
breaks omap5 PLLs. The issues seen are rather odd: seemed that the
output clock rate is half of what we asked. It is unclear what's causing
there issues.

As a work-around this patch adds a "errata_i886" flag, which is set only
for DRA7's PLLs, and the PLL setup is done according to that flag.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Tested-by: H. Nikolaus Schaller <hns@goldelico.com>

omapdrm rejects all venc (analog tv-out) videomodes, due to somewhat
strict checking of the values, making tv-out unusable.

We only support two videomodes, one for PAL and one for NTSC, so instead
of trying to check every field in the videomode struct, this patch makes
the driver check only the pixel clock and the size of the display.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

Not a lot that's ready to be included this round for Nouveau.  GP108
modesetting support, and misc other fixes.

* 'linux-4.14' of git://github.com/skeggsb/linux:
  drm/nouveau/kms/nv50: perform null check on msto[i] rathern than msto
  drm/nouveau/pci/msi: disable MSI on big-endian platforms by default
  drm/nouveau: silence suspend/resume debugging messages
  drm/nouveau/kms/nv04-nv4x: fix exposed format list
  drm/nouveau/kms/nv10-nv40: add NV21 support to overlay
  drm/nouveau/kms/nv04-nv40: improve overlay error detection, fix pitch setting
  drm/nouveau/kms/nv04-nv40: prevent undisplayable framebuffers from creation
  drm/nouveau/mpeg: print more debug info when rejecting dma objects
  drm/nouveau/fb/gf100-: zero mmu debug buffers
  drm/nouveau/bar/gf100: add config option to limit BAR2 to 16MiB
  initial support (display-only) for GP108
  drm/nouveau/falcon: use a more reasonable msgqueue timeout value
  drm/nouveau/disp: Silence DCB warnings.
  drm/nouveau/bios: Demote missing fp table message to NV_DEBUG.
  drm/nouveau/pmu/gt215-: abstract detection of whether reset is needed
  drm/nouveau/pmu/gt215: fix reset
  drm/nouveau/mc/gf100: add pmu to reset mask
  drm/nouveau/disp/gf119-: avoid creating non-existent heads
  drm/nouveau/therm/gm200: Added
  drm/nouveau/therm: fix spelling mistake on array thresolds