Merge branch 'etnaviv/next' of https://git.pengutronix.de/git/lst/linux into drm-next

Disable perfmon ioctls for now in etnaviv

* 'etnaviv/next' of https://git.pengutronix.de/git/lst/linux:
  drm/etnaviv: short-circuit perfmon ioctls
  Revert "drm/etnaviv: submit supports performance monitor requests"

Merge tag 'drm-misc-next-2017-10-20' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

Final drm-misc feature pull for 4.15:

UAPI Changes:
- new madvise ioctl for vc4 (Boris)

Core Changes:
- plane commit tracking fixes (Maarten)
- vgaarb improvements for fancy new platforms (aka ppc64 and arm64) by
  Bjorn Helgaas

Driver Changes:
- pile of new panel drivers: Toshiba LT089AC19000, Innolux AT043TN24
- more sun4i work to support A10/A20 Tcon and hdmi outputs
- vc4: fix sleep in irq handler by making it threaded (Eric)
- udl probe/edid read fixes (Robert Tarasov)

And a bunch of misc small cleanups/refactors and doc fixes all over.

* tag 'drm-misc-next-2017-10-20' of git://anongit.freedesktop.org/drm/drm-misc: (32 commits)
  drm/vc4: Fix sleeps during the IRQ handler for DSI transactions.
  drm/vc4: Add the DRM_IOCTL_VC4_GEM_MADVISE ioctl
  drm/panel: simple: add Toshiba LT089AC19000
  dma-fence: remove duplicate word in comment
  drm/panel: simple: add delays for Innolux AT043TN24
  drm/panel: simple: add bus flags for Innolux AT043TN24
  drm/panel: simple: fix vertical timings for Innolux AT043TN24
  drm/atomic-helper: check that drivers call drm_crtc_vblank_off
  drm: some KMS todo ideas
  vgaarb: Factor out EFI and fallback default device selection
  vgaarb: Select a default VGA device even if there's no legacy VGA
  drm/bridge: adv7511: Fix a use after free
  drm/sun4i: Add support for A20 display pipeline components
  drm/sun4i: Add support for A10 display pipeline components
  drm/sun4i: hdmi: Support HDMI controller on A10
  drm/sun4i: tcon: Add support for A10 TCON
  drm/sun4i: backend: Support output muxing
  drm/sun4i: tcon: Move out the tcon0 common setup
  drm/sun4i: tcon: Don't rely on encoders to set the TCON mode
  drm/sun4i: tcon: Don't rely on encoders to enable the TCON
  ...

Merge tag 'drm/tegra/for-4.15-rc1' of git://anongit.freedesktop.org/tegra/linux into drm-next

drm/tegra: Changes for v4.15-rc1

This contains a bit of cleanup and some minor fixes for the host1x and
Tegra DRM drivers. There's also some more preparatory work for Tegra186
support which I'm not quite ready to send upstream because the GPIO
driver needed for HDMI support has been stuck for months, and we can't
do much without it. Hopefully that driver will land in v4.15, which
would mean we could go ahead with Tegra186 display support in v4.16.

* tag 'drm/tegra/for-4.15-rc1' of git://anongit.freedesktop.org/tegra/linux: (21 commits)
  drm/tegra: hdmi: Add cec-notifier support
  drm/tegra: dc: Perform a complete reset sequence
  drm/tegra: dc: Make sure to set the module clock rate
  drm/tegra: dc: Simplify atomic plane helper functions
  drm/tegra: dc: Move some declarations to dc.h
  drm/tegra: vic: Use of_device_get_match_data()
  drm/tegra: sor: Use of_device_get_match_data()
  drm/tegra: hdmi: Use of_device_get_match_data()
  drm/tegra: dc: Use of_device_get_match_data()
  drm/tegra: Use u64_to_user_ptr helper
  gpu: host1x: Fix incorrect comment for channel_request
  gpu: host1x: Disassemble more instructions
  gpu: host1x: Improve debug disassembly formatting
  gpu: host1x: Enable gather filter
  gpu: host1x: Enable Tegra186 syncpoint protection
  gpu: host1x: Call of_dma_configure() after setting bus
  drm/tegra: Add Tegra186 support for VIC
  gpu: host1x: Add Tegra186 support
  dt-bindings: host1x: Add Tegra186 information
  gpu: host1x: syncpt: Request syncpoints per client
  ...

drm: Add CRTC_GET_SEQUENCE and CRTC_QUEUE_SEQUENCE ioctls [v3]

These provide crtc-id based functions instead of pipe-number, while
also offering higher resolution time (ns) and wider frame count (64)
as required by the Vulkan API.

v2:

 * Check for DRIVER_MODESET in new crtc-based vblank ioctls

Failing to check this will oops the driver.

 * Ensure vblank interupt is running in crtc_get_sequence ioctl

The sequence and timing values are not correct while the
interrupt is off, so make sure it's running before asking for
them.

 * Short-circuit get_sequence if the counter is enabled and accurate

Steal the idea from the code in wait_vblank to avoid the
expense of drm_vblank_get/put

 * Return active state of crtc in crtc_get_sequence ioctl

Might be useful for applications that aren't in charge of
modesetting?

 * Use drm_crtc_vblank_get/put in new crtc-based vblank sequence ioctls

Daniel Vetter prefers these over the old drm_vblank_put/get
APIs.

 * Return s64 ns instead of u64 in new sequence event

Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
v3:

 * Removed FIRST_PIXEL_OUT_FLAG
 * Document that the timestamp in the query and event are
   that of the first pixel leaving the display engine for
   the display (using the same wording as the Vulkan spec).

Suggested-by: Michel Dänzer <michel@daenzer.net>
Acked-by: Dave Airlie <airlied@redhat.com>
[airlied: left->leaves (Michel)]

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drm/etnaviv: short-circuit perfmon ioctls

The feature implementation isn't stable yet. Reject any attempt to use
the IOCTLs for now. This keeps most of the code in place, so we can stabilize
it in-tree, but keeps userspace from using the feature for now.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

Revert "drm/etnaviv: submit supports performance monitor requests"

The performance monitoring feature isn't stable enough yet, so don't advertise
it to userspace yet.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

drm: Reorganize drm_pending_event to support future event types [v2]

Place drm_event_vblank in a new union that includes that and a bare
drm_event structure. This will allow new members of that union to be
added in the future without changing code related to the existing vbl
event type.

Assignments to the crtc_id field are now done when the event is
allocated, rather than when delievered. This way, delivery doesn't
need to have the crtc ID available.

v2:
 * Remove 'dev' argument from create_vblank_event

It wasn't being used anyways, and if we need it in the future,
we can always get it from crtc->dev.

 * Check for MODESETTING before looking for crtc in queue_vblank_event

UMS drivers will oops if we try to get a crtc, so make sure
we're modesetting before we try to find a crtc_id to fill into
the event.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
(cherry picked from commit dc695b85fde88eca3ef3b03fcd82f15b6bc6e462)

drm: Widen vblank count to 64-bits [v3]

This modifies the datatypes used by the vblank code to provide 64 bits
of vblank count.

The driver interfaces have been left using 32 bits of vblank count;
all of the code necessary to widen that value for the user API was
already included to handle devices returning fewer than 32-bits.

This will provide the necessary datatypes for the Vulkan API.

v2:

 * Re-write wait_vblank ioctl to ABSOLUTE sequence

    When an application uses the WAIT_VBLANK ioctl with RELATIVE
    or NEXTONMISS bits set, the target vblank interval is updated
    within the kernel. We need to write that target back to the
    ioctl buffer and update the flags bits so that if the wait is
    interrupted by a signal, when it is re-started, it will target
    precisely the same vblank count as before.

 * Leave driver API with 32-bit vblank count

v3:

 * Rebase on top of Arnd Bergmann's patch which had
   the switch to ktime_t parts.

[airlied: fix conflict with Ville vblank change].

Suggested-by: Michel Dänzer <michel@daenzer.net>
Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
(cherry picked from commit 2affbc16983e4fc90960bc7f70e7615f4228199b)

drm/tegra: hdmi: Add cec-notifier support

In order to support CEC the HDMI driver has to inform the CEC driver
whenever the physical address changes. So when the EDID is read the
CEC driver has to be informed and whenever the hotplug detect goes
away.

This is done through the cec-notifier framework.

The link between the HDMI driver and the CEC driver is done through
the hdmi-phandle property in the tegra-cec node in the device tree.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

drm/tegra: dc: Perform a complete reset sequence

In order for the reset to be applied properly, the module clock must be
enabled during the assertion.

Signed-off-by: Thierry Reding <treding@nvidia.com>

drm/tegra: dc: Make sure to set the module clock rate

When applying the PLL changes from the computed state object, make sure
to set the rate of the display controller module clock. Failing to do so
can yield to a situation where the parent will be set to the proper
pixel clock, but the module clock will be divided down to the rate that
is happened to be set to before the parent rate change.

Signed-off-by: Thierry Reding <treding@nvidia.com>

drm/tegra: dc: Simplify atomic plane helper functions

Remove the tegra_dc_disable_window() function whose only purpose was to
allow tegra_plane_atomic_update() to also call it. Fix that by shuffling
tegra_plano_atomic_disable() to before tegra_plane_atomic_update().

While at it, also remove the overlay plane helper functions because they
are exactly the same as the primary plane helper functions.

Signed-off-by: Thierry Reding <treding@nvidia.com>

drm/tegra: dc: Move some declarations to dc.h

Move the DC related declarations in drm.h to dc.h where they belong.

Signed-off-by: Thierry Reding <treding@nvidia.com>

drm/tegra: vic: Use of_device_get_match_data()

Avoid some boilerplate by calling of_device_get_match_data() instead of
open-coding the equivalent in the driver.

Signed-off-by: Thierry Reding <treding@nvidia.com>

drm/tegra: sor: Use of_device_get_match_data()

Avoid some boilerplate by calling of_device_get_match_data() instead of
open-coding the equivalent in the driver.

Signed-off-by: Thierry Reding <treding@nvidia.com>

drm/tegra: hdmi: Use of_device_get_match_data()

Avoid some boilerplate by calling of_device_get_match_data() instead of
open-coding the equivalent in the driver.

Signed-off-by: Thierry Reding <treding@nvidia.com>

drm/tegra: dc: Use of_device_get_match_data()

Avoid some boilerplate by calling of_device_get_match_data() instead of
open-coding the equivalent in the driver.

Signed-off-by: Thierry Reding <treding@nvidia.com>

drm/tegra: Use u64_to_user_ptr helper

Use the u64_to_user_ptr helper macro to cast IOCTL argument u64 values
to user pointers instead of writing out the cast manually. Also do
some other cleanup with user pointers to make them stand out more
and look cleaner.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Tested-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

gpu: host1x: Fix incorrect comment for channel_request

This function actually doesn't sleep in the version that was merged.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

gpu: host1x: Disassemble more instructions

The disassembler for debug dumps was missing some newer host1x opcodes.
Add disassembly support for these.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Tested-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

gpu: host1x: Improve debug disassembly formatting

The host1x driver prints out "disassembly" dumps of the command FIFO
and gather contents on submission timeouts. However, the output has
been quite difficult to read with unnecessary newlines and occasional
missing parentheses.

Fix these problems by using pr_cont to remove unnecessary newlines
and by fixing other small issues.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Tested-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

gpu: host1x: Enable gather filter

The gather filter is a feature present on Tegra124 and newer where the
hardware prevents GATHERed command buffers from executing commands
normally reserved for the CDMA pushbuffer which is maintained by the
kernel driver.

This commit enables the gather filter on all supporting hardware.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

gpu: host1x: Enable Tegra186 syncpoint protection

Since Tegra186 the Host1x hardware allows syncpoints to be assigned to
specific channels, preventing any other channels from incrementing
them.

Enable this feature where available and assign syncpoints to channels
when submitting a job. Syncpoints are currently never unassigned from
channels since that would require extra work and is unnecessary with
the current channel allocation model.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

gpu: host1x: Call of_dma_configure() after setting bus

of_dma_configure() now checks the device's bus before configuring it, so
we need to set the device's bus before calling.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

drm/tegra: Add Tegra186 support for VIC

Add Tegra186 support for VIC - no changes are required except for new
firmware and compatibility string.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

gpu: host1x: Add Tegra186 support

Add support for the implementation of Host1x present on the Tegra186.
The register space has been shuffled around a little bit, requiring
addition of some chip-specific code sections. Tegra186 also adds
several new features, most importantly the hypervisor, but those are
not yet supported with this commit.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Tested-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

dt-bindings: host1x: Add Tegra186 information

Add the Tegra186-specific hypervisor-related register range
properties.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>

gpu: host1x: syncpt: Request syncpoints per client

Rather than request syncpoints for a struct device *, request them for a
struct host1x_client *. This is important because subsequent patches are
going to break the assumption that host1x will always be the parent for
devices requesting a syncpoint. It's also a more natural choice because
host1x clients are really the only ones that will know how to deal with
syncpoints.

Note that host1x clients are always guaranteed to be children of host1x,
regardless of their location in the device tree.

Signed-off-by: Thierry Reding <treding@nvidia.com>

gpu: host1x: Use of_device_get_match_data()

Avoid some boilerplate by calling of_device_get_match_data() instead of
open-coding the equivalent in the driver.

While at it, shuffle around some code to avoid unnecessary local
variables.

Signed-off-by: Thierry Reding <treding@nvidia.com>

Merge tag 'drm-amdkfd-next-2017-10-18' of git://people.freedesktop.org/~gabbayo/linux into drm-next

This is the amdkfd pull request for 4.15 merge window.
The patches here are relevant only for Kaveri and Carrizo. Still no dGPU patches.

The main goal is to continue alignment with the internal AMD development tree.

The following is a summary of the changes:
- Improvements and fixes to suspend/resume code
- Improvements and fixes to process termination code
- Cleanups in the queue unmapping functionality
- Reuse code from amdgpu

* tag 'drm-amdkfd-next-2017-10-18' of git://people.freedesktop.org/~gabbayo/linux:
  drm/amdkfd: Improve multiple SDMA queues support per process
  drm/amdkfd: Limit queue number per process and device to 127
  drm/amdkfd: Clean up process queue management
  drm/amdkfd: Compress unnecessary function parameters
  drm/amdkfd: Improve process termination handling
  drm/amdkfd: Avoid submitting an unnecessary packet to HWS
  drm/amdkfd: Fix MQD updates
  drm/amdkfd: Pass filter params to unmap_queues_cpsch
  drm/amdkfd: move locking outside of unmap_queues_cpsch
  drm/amdkfd: Avoid name confusion involved in queue unmapping
  drm/amdkfd: Drop _nocpsch suffix from shared functions
  drm/amdkfd: Reuse CHIP_* from amdgpu v2
  drm/amdkfd: Use VMID bitmap from KGD v2
  drm/amdkfd: Adjust dequeue latencies and timeouts
  drm/amdkfd: Rectify the jiffies calculation error with milliseconds v2
  drm/amdkfd: Fix suspend/resume issue on Carrizo v2
  drm/amdkfd: Reorganize kfd resume code

Merge tag 'drm-intel-next-2017-10-12' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

Last batch of drm/i915 features for v4.15:

- transparent huge pages support (Matthew)
- uapi: I915_PARAM_HAS_SCHEDULER into a capability bitmask (Chris)
- execlists: preemption (Chris)
- scheduler: user defined priorities (Chris)
- execlists optimization (Michał)
- plenty of display fixes (Imre)
- has_ipc fix (Rodrigo)
- platform features definition refactoring (Rodrigo)
- legacy cursor update fix (Maarten)
- fix vblank waits for cursor updates (Maarten)
- reprogram dmc firmware on resume, dmc state fix (Imre)
- remove use_mmio_flip module parameter (Maarten)
- wa fixes (Oscar)
- huc/guc firmware refacoring (Sagar, Michal)
- push encoder specific code to encoder hooks (Jani)
- DP MST fixes (Dhinakaran)
- eDP power sequencing fixes (Manasi)
- selftest updates (Chris, Matthew)
- mmu notifier cpu hotplug deadlock fix (Daniel)
- more VBT parser refactoring (Jani)
- max pipe refactoring (Mika Kahola)
- rc6/rps refactoring and separation (Sagar)
- userptr lockdep fix (Chris)
- tracepoint fixes and defunct tracepoint removal (Chris)
- use rcu instead of abusing stop_machine (Daniel)
- plenty of other fixes all around (Everyone)

* tag 'drm-intel-next-2017-10-12' of git://anongit.freedesktop.org/drm/drm-intel: (145 commits)
  drm/i915: Update DRIVER_DATE to 20171012
  drm/i915: Simplify intel_sanitize_enable_ppgtt
  drm/i915/userptr: Drop struct_mutex before cleanup
  drm/i915/dp: limit sink rates based on rate
  drm/i915/dp: centralize max source rate conditions more
  drm/i915: Allow PCH platforms fall back to BIOS LVDS mode
  drm/i915: Reuse normal state readout for LVDS/DVO fixed mode
  drm/i915: Use rcu instead of stop_machine in set_wedged
  drm/i915: Introduce separate status variable for RC6 and LLC ring frequency setup
  drm/i915: Create generic functions to control RC6, RPS
  drm/i915: Create generic function to setup LLC ring frequency table
  drm/i915: Rename intel_enable_rc6 to intel_rc6_enabled
  drm/i915: Name structure in dev_priv that contains RPS/RC6 state as "gt_pm"
  drm/i915: Move rps.hw_lock to dev_priv and s/hw_lock/pcu_lock
  drm/i915: Name i915_runtime_pm structure in dev_priv as "runtime_pm"
  drm/i915: Separate RPS and RC6 handling for CHV
  drm/i915: Separate RPS and RC6 handling for VLV
  drm/i915: Separate RPS and RC6 handling for BDW
  drm/i915: Remove superfluous IS_BDW checks and non-BDW changes from gen8_enable_rps
  drm/i915: Separate RPS and RC6 handling for gen6+
  ...

Merge branch 'drm-next-4.15' of git://people.freedesktop.org/~agd5f/linux into drm-next

Last set of features for 4.15.  Highlights:
- Add a bo flag to allow buffers to opt out of implicit sync
- Add ctx priority setting interface
- Lots more powerplay cleanups
- Start to plumb through vram lost infrastructure for gpu reset
- ttm support for huge pages
- misc cleanups and bug fixes

* 'drm-next-4.15' of git://people.freedesktop.org/~agd5f/linux: (73 commits)
  drm/amd/powerplay: Place the constant on the right side of the test
  drm/amd/powerplay: Remove useless variable
  drm/amd/powerplay: Don't cast kzalloc() return value
  drm/amdgpu: allow GTT overcommit during bind
  drm/amdgpu: linear validate first then bind to GART
  drm/amd/pp: Fix overflow when setup decf/pix/disp dpm table.
  drm/amd/pp: thermal control not enabled on vega10.
  drm/amdgpu: busywait KIQ register accessing (v4)
  drm/amdgpu: report more amdgpu_fence_info
  drm/amdgpu:don't check soft_reset for sriov
  drm/amdgpu:fix duplicated setting job's vram_lost
  drm/amdgpu:reduce wb to 512 slot
  drm/amdgpu: fix regresstion on SR-IOV gpu reset failed
  drm/amd/powerplay: Tidy up cz_dpm_powerup_vce()
  drm/amd/powerplay: Tidy up cz_dpm_powerdown_vce()
  drm/amd/powerplay: Tidy up cz_dpm_update_vce_dpm()
  drm/amd/powerplay: Tidy up cz_dpm_update_uvd_dpm()
  drm/amd/powerplay: Tidy up cz_dpm_powerup_uvd()
  drm/amd/powerplay: Tidy up cz_dpm_powerdown_uvd()
  drm/amd/powerplay: Tidy up cz_start_dpm()
  ...

drm/vc4: Fix sleeps during the IRQ handler for DSI transactions.

VC4's DSI1 has a bug where the AXI connection is broken for 32-bit
writes from the CPU, so we use the DMA engine to DMA 32-bit values
into registers instead.  That sleeps, so we can't do it from the top
half.

As a solution, use an interrupt thread so that all our writes happen
when sleeping is is allowed.

v2: Use IRQF_ONESHOT (suggested by Boris)
v3: Style nitpicks.

Signed-off-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20171014001255.32005-1-eric@anholt.net
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com> (v2)

drm/amd/powerplay: Place the constant on the right side of the test

Move the constant on the right side of the comparison in order to
make the code easier to read.

Issue found by checkpatch script:
* WARNING: Comparisons should place the constant on the right side of
the test

Signed-off-by: Georgiana Chelu <georgiana.chelu93@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/powerplay: Remove useless variable

The result variable is initialized at the beginning of the function, but
its value does not change during the function execution. Thus, remove the
variable and return the SUCCESS value, which is 0.

Issue found by coccinelle script:
* Unneeded variable: "result". Return "0"

Path to the cocci script: scripts/coccinelle/misc/returnvar.cocci

Signed-off-by: Georgiana Chelu <georgiana.chelu93@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/powerplay: Don't cast kzalloc() return value

The kzalloc function returns a void pointer and the assignment
operator converts it to the type of pointer it is assigned to.
Therefore, there is no need to cast.

Issue found by alloc_cast.cocci:
* WARNING: casting value returned by memory allocation function
to <struct type> is useless.

Path to the cocci script: scripts/coccinelle/api/alloc/alloc_cast.cocci

Signed-off-by: Georgiana Chelu <georgiana.chelu93@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: allow GTT overcommit during bind

While binding BOs to GART we need to allow a bit overcommit in the GTT
domain. Otherwise we can never use the full GART space when GART size=GTT size.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: linear validate first then bind to GART

For VM emulation for old UVD/VCE we need to validate the BO with linear
VRAM flag set first and then eventually bind it to GART.

Validating with linear VRAM flag set can move the BO to GART making
UVD/VCE read/write from an unbound GART BO.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
CC: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/pp: Fix overflow when setup decf/pix/disp dpm table.

Clear the count in the single table setup function to
avoid missing any tables.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/pp: thermal control not enabled on vega10.

regression issue.
caused by "f12f9f5e5d455edebc01"
forget to set start_thermal_controller function point.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: busywait KIQ register accessing (v4)

Register accessing is performed when IRQ is disabled. Never sleep in
this function.

Known issue: dead sleep in many use cases of index/data registers.

v2:
 - wrap polling fence functions.
 - don't trigger IRQ for polling in case of wrongly fence signal.

v3:
 - handle wrap round gracefully.
 - add comments for polling function

v4:
 - don't return negative timeout confused with error code

Signed-off-by: pding <Pixel.Ding@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: report more amdgpu_fence_info

Only for GFX ring. This can help checking MCBP feature.

The fence at the end of the frame will indicate the completion status.
If the frame completed normally, the fence is written to the address
given in the EVENT_WRITE_EOP packet. If preemption occurred in the
previous IB the address is adjusted by 2 DWs. If work submitted in the
frame was reset before completion, the fence address is adjusted by
four DWs. In the case that preemption occurred, and before preemption
completed a reset was initiated, the address will be adjusted with six
DWs

Signed-off-by: pding <Pixel.Ding@amd.com>
Reviewed-by: Monk Liu <monk.liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu:don't check soft_reset for sriov

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Ack-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu:fix duplicated setting job's vram_lost

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu:reduce wb to 512 slot

with current WB usage we only use 57 slots, so 512
is extreamly sufficient, and reduce to 512 can
make WB fit into one page.

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: fix regresstion on SR-IOV gpu reset failed

fw ucode is corrupted after vf flr by PSP so ucode_init() is
a must in psp_hw_init othewise KIQ/KCQ enabling will fail

Revert "drm/amdgpu: refine code delete duplicated error handling"
This reverts commit e57b87ff828f95efe992468e6d18c2c059b27aa9.
Revert "drm/amdgpu: move amdgpu_ucode_init_bo to amdgpu_device.c"
This reverts commit 815b8f8595148d06a64d2ce4282e8e80dfcb02f1.

Reviewed-by: Monk Liu <monk.liu@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/powerplay: Tidy up cz_dpm_powerup_vce()

Use PP_CAP macro.

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/powerplay: Tidy up cz_dpm_powerdown_vce()

Use PP_CAP macro.

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/powerplay: Tidy up cz_dpm_update_vce_dpm()

Use PP_CAP and tidy up indentation.

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/powerplay: Tidy up cz_dpm_update_uvd_dpm()

Use PP_CAP and tidy up indentation.

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/powerplay: Tidy up cz_dpm_powerup_uvd()

Use PP_CAP and simplify enable/disable logic.

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/powerplay: Tidy up cz_dpm_powerdown_uvd()

Use PP_CAP and tidy up indentation.

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/powerplay: Tidy up cz_start_dpm()

Remove unused variables.

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: use ARRAY_SIZE

Using the ARRAY_SIZE macro improves the readability of the code.

Found with Coccinelle with the following semantic patch:
@r depends on (org || report)@
type T;
T[] E;
position p;
@@
(
 (sizeof(E)@p /sizeof(*E))
|
 (sizeof(E)@p /sizeof(E[...]))
|
 (sizeof(E)@p /sizeof(T))
)

Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Jérémy Lefaure <jeremy.lefaure@lse.epita.fr>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: reserve root PD while releasing it

Otherwise somebody could try to evict it at the same time and try to use
half torn down structures.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-and-Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/ttm: fix the fix for huge compound pages

We don't use compound pages at the moment. Take this into account when
freeing them.

Signed-off-by: Christian König <christian.koenig@amd.comd>
Reviewed-and-Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: bump version for vram lost counter query (v2)

v2: vram -> VRAM in comment

Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: minor CS optimization

We only need to loop over all IBs for old UVD/VCE command stream patching.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/sched: fix job tear down order v2

Move the trace before we signal the scheduler fence and drop the
scheduler fence reference directly before we free the job.

v2: keep extra s_fence reference

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Liu, Monk <Monk.Liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: Add amdgpu_find_mm_node()

Replace some commonly repeated code with a function.

v2: Use amdgpu_find_mm_node() in amdgpu_ttm_io_mem_pfn()

Signed-off-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: Refactor amdgpu_move_blit

Add more generic function amdgpu_copy_ttm_mem_to_mem() that supports
arbitrary copy size, offsets and two BOs (source & dest.).

This is useful for KFD Cross Memory Attach feature where data needs to
be copied from BOs from different processes

v2: Add struct amdgpu_copy_mem and changed amdgpu_copy_ttm_mem_to_mem()
function parameters to use the struct

v3: Minor function name change

Signed-off-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: Fix extra call to amdgpu_ctx_put.

In amdgpu_cs_parser_init() in case of error handling
amdgpu_ctx_put() is called without setting p->ctx to NULL after that,
later amdgpu_cs_parser_fini() also calls amdgpu_ctx_put() again and
mess up the reference count.

Signed-off-by: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/ttm: Fix unused variables with huge page support

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: add VRAM lost query

Allows userspace to figure out if VRAM was lost.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: set -ECANCELED when dropping jobs

And return from the wait functions the fence error code.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: move the VRAM lost counter per context

Instead of per device track the VRAM lost per context and return ECANCELED
instead of ENODEV.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: keep copy of VRAM lost counter in job

Instead of reading the current counter from fpriv.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: partial revert VRAM lost handling v2

Keep blocking the CS, but revert everything else. Mapping BOs and info IOCTL
are harmless and can still happen even when VRAM content ist lost.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/ttm: add transparent huge page support for wc or uc allocations v2

Add a new huge page pool and try to allocate from it when it makes sense.

v2: avoid compound pages for now

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/ttm: move more logic into ttm_page_pool_get_pages

Make it easier to add huge page pool.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/ttm: add transparent huge page support for cached allocations v2

Try to allocate huge pages when it makes sense.

v2: avoid compound pages for now

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/ttm: don't use compound pages for now

We need to figure out first how to correctly map them into the CPU page tables.

bug: https://bugs.freedesktop.org/show_bug.cgi?id=103138
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: correct reference clock value on vega10

Old value from bringup was wrong.

Cc: stable@vger.kernel.org
Signed-off-by: Ken Wang <Ken.Wang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: SR-IOV data exchange between PF&VF

SR-IOV need to exchange some data between PF&VF through shared VRAM

PF will copy some necessary firmware and information to the shared
VRAM. It also requires some information from VF. PF will send a
key through mailbox2 to help guest calculate checksum so that it can
verify whether the data is correct.

So check the data on the specified offset of the shared VRAM, if the
checksum is right, read values from it and write some VF information
next to the data from PF.

Signed-off-by: Horace Chen <horace.chen@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: Move old fence waiting before reservation lock is aquired v2

Helps avoiding deadlock during GPU reset.
Added mutex to amdgpu_ctx to preserve order of fences on a ring.

v2:
Put waiting logic in a function in a seperate function in amdgpu_ctx.c

Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: Refactor amdgpu_cs_ib_vm_chunk and amdgpu_cs_ib_fill.

This enables old fence waiting before reservation lock is aquired
which in turn is part of a bigger solution to deadlock happening
when gpu reset with VRAM recovery accures during intensive rendering.

Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: make function uvd_v6_0_enc_get_destroy_msg static

The function uvd_v6_0_enc_get_destroy_msg is local to the source and
does not need to be in global scope, so make it static.

Cleans up sparse warning:
symbol 'uvd_v6_0_enc_get_destroy_msg' was not declared. Should it be
static?

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/pp: remove polaris10_smc/smumgr split.

move functions in polaris_smc.c to
polaris10_smumgr.c and make all functions in
polaris10_smumgr.c static.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/pp: remove tonga_smc/smumgr split.

move functions in tonga_smc.c to tonga_smumgr.c
and make all functions in tonga_smumgr.c static.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/pp: remove iceland_smc/smumgr split.

move functions in iceland_smc.c to iceland_smumgr.c
and make all functions in iceland_smumgr.c static.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/pp: remove fiji_smc/smumgr split.

make all functions in fiji_smumgr.c static and
exported by pp_smumgr_func table.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/pp: rename ci_smc.c to ci_smumgr.c

for consistency.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: refine code delete duplicated error handling

in function amdgpu_ucode_init_bo, when failed, it will
set load_type to AMDGPU_FW_LOAD_DIRECT.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/pp: move common function to smu7_smumgr.c

fiji and polaris can share same setup_pwr_virus
function.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/pp: implement function notify_cac_buffer_info on VI

Used for smu power logging.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/pp: implement function notify_cac_buffer_info on Vega

Used for smu power logging.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/pp: add new function point in hwmgr.

used for notify SMU the allocated buffer address.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/pp: export new smu messages for vega10

New messages for smu power logging.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/powerplay: get the temperature on CZ

Setting the function pointer to the get the temperature on CZ.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Satyajit Sahu <satyajit.sahu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: bump version for new AMDGPU_SCHED ioctl

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: rename context priority levels

Don't leak implementation details about how each priority behaves to
usermode. This allows greater flexibility in the future.

Squash into c2636dc53abd8269a0930bccd564f2f195dba729

Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/vc4: Add the DRM_IOCTL_VC4_GEM_MADVISE ioctl

This ioctl will allow us to purge inactive userspace buffers when the
system is running out of contiguous memory.

For now, the purge logic is rather dumb in that it does not try to
release only the amount of BO needed to meet the last CMA alloc request
but instead purges all objects placed in the purgeable pool as soon as
we experience a CMA allocation failure.

Note that the in-kernel BO cache is always purged before the purgeable
cache because those objects are known to be unused while objects marked
as purgeable by a userspace application/library might have to be
restored when they are marked back as unpurgeable, which can be
expensive.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20171019125748.3152-1-boris.brezillon@free-electrons.com

drm/panel: simple: add Toshiba LT089AC19000

Only exposes a single mode and not a complete display timing, as
the datasheet is rather vague about the minimum/maximum values.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171018172240.8772-1-l.stach@pengutronix.de

dma-fence: remove duplicate word in comment

Signed-off-by: Frank Binns <frank.binns@imgtec.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/1508333423-5394-1-git-send-email-frank.binns@imgtec.com

drm/panel: simple: add delays for Innolux AT043TN24

The delays between video data and backlight enable and between backlight
disable and end of video data are given as >= 160 ms in the datasheet.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Tested-by: Marco Franchi <marco.franchi@nxp.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171011125958.23064-3-p.zabel@pengutronix.de

drm/panel: simple: add bus flags for Innolux AT043TN24

For LCD interface controllers that support configuring polarity of
pixel clock and data enable signal, specify bus flags in the panel
descriptor.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Tested-by: Marco Franchi <marco.franchi@nxp.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171011125958.23064-2-p.zabel@pengutronix.de

drm/panel: simple: fix vertical timings for Innolux AT043TN24

The vsync length should be 10 lines, as specified in the data sheet.
This gets the actual refresh rate closer to nominal 60 Hz given the
9 MHz pixel clock.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Tested-by: Marco Franchi <marco.franchi@nxp.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171011125958.23064-1-p.zabel@pengutronix.de

drm/atomic-helper: check that drivers call drm_crtc_vblank_off

At least when they have vblank support they need to call this, or the
vblank core will happily call into their crtc->enable_vblank callback
even when the crtc is off. Which leads to a boom when the clocks are
off on most hardware (besides the inevitable confusion in the
book-keeping).

The consistency checks in drm_vblank.c will then make sure that
vblank_off/on calls are balanced, and if drivers forget to re-enable
it all the commits will stall, so I think we're covered.

It'd be nice to be able to place this check outside of commit helpers,
but tha's not really possible (due to nonblocking commits and all
that). Placing it into atomic helpers should at least cover most
drivers.

Also note that vblank support is still optional (for virtual drivers,
which tend to not have this), check for that.

v2: Fixup the handling for vblank_put (Rob).

Cc: Rob Clark <robdclark@gmail.com>
Tested-by: Rob Clark <robdclark@gmail.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171017152714.6849-1-daniel.vetter@ffwll.ch

drm: some KMS todo ideas

Inspired by discussions with Keith and Ville.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Keith Packard <keithp@keithp.com>
Acked-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171017162918.8380-1-daniel.vetter@ffwll.ch

vgaarb: Factor out EFI and fallback default device selection

The default VGA device is normally set in vga_arbiter_add_pci_device() when
we call it for the first enabled device that can be accessed with the
legacy VGA resources ([mem 0xa0000-0xbffff], etc.)

That default device can be overridden by an EFI device that owns the boot
framebuffer.  As a fallback, we can also select a VGA device that can't be
accessed via legacy VGA resources, or a VGA device that isn't even enabled.

Factor out this EFI and fallback selection from vga_arb_device_init() into
a separate vga_arb_select_default_device() function.  This doesn't change
any behavior, but it untangles the "bridge control possible" checking and
messages from the default device selection.

Tested-by: Zhou Wang <wangzhou1@hisilicon.com> # D05 Hisi Hip07, Hip08
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20171013034729.14630.30419.stgit@bhelgaas-glaptop.roam.corp.google.com