We get 1 warning when building kernel with W=1:
drivers/gpu/drm/exynos/exynos_dp.c:46:5: warning: no previous prototype for 'exynos_dp_crtc_clock_enable' [-Wmissing-prototypes]

In fact, this function is only used in the file in which it is
declared and don't need a declaration, but can be made static.
So this patch marks it 'static'.
Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

In case of some platforms fimd clocks can be configured to
very low values, as a result refresh rate can be very low and
driver/drm-core will timeout waiting for vblanks, it will result
in premature removal of framebuffers and will cause oopses.
The patch adds atomic_check callback to fimd to prevent setting
such modes.
Reported-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

Exynos DRM devices update their registers at vblank time. Exynos-DRM uses
custom mechanism to wait for vblank. This mechanism is error prone -
variables are not updated atomically. As a result in certain circumstances
user space can try to free buffers which are still in use by hardware,
in such cases IOMMU can throw OOPS.
The patch instead of fixing the mechanism replaces it with drm core helper.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

VIDI driver uses fake vblank handler to generate vblank events.
It was implemented using worker which slept for vblank time, additionally
it did not work if there were no page flips. The patch replaces it with
timer, uses drm_crtc_vblank_(on|off) helpers to manage it and fixes
behavior for non-page-flip cases.
This change allows further improvements of vblank in exynos-drm framework.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

Apply some 'make-up' in g2d_probe().
Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

A simple while loop should do the same here.
Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

The mixer context struct already has a 'flags' field, so
we can use it to store the 'interlace', 'vp_enabled' and
'has_sclk' booleans.
We use the non-atomic helper functions to access these bits.
Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

The helper, devm_regulator_bulk_get() initializes the consumer as NULL,
so this code can be ignored.
Signed-off-by: Milo Kim <woogyom.kim@gmail.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

Paring DT properties and getting PHY IO (memory mapped or I2C) in one
function.
Signed-off-by: Milo Kim <woogyom.kim@gmail.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

Paring DT properties and getting the I2C adapter in one function.
Signed-off-by: Milo Kim <woogyom.kim@gmail.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

Some additional fixes for 4.9:
- The rest of Christian's GTT rework which fixes a long standing bug
  in the GPUVM code among other things
- Changes to the pci shutdown callbacks for certain hypervisors
- Fix hpd interrupt storms on eDP panels which have the hpd interrupt
  enabled by the bios
- misc cleanups and bug fixes

* 'drm-next-4.9' of git://people.freedesktop.org/~agd5f/linux: (33 commits)
  drm/radeon: always apply pci shutdown callbacks
  drm/amdgpu: always apply pci shutdown callbacks (v2)
  drm/amdgpu: improve VM PTE trace points
  drm/amdgpu: fix GART_DEBUGFS define
  drm/amdgpu: free userptrs even if GTT isn't bound
  drm/amd/amdgpu: Various cleanups for DCEv6
  drm/amdgpu: fix BO move offsets
  drm/amdgpu: fix amdgpu_move_blit on 32bit systems
  drm/amdgpu: fix gtt_mgr bo's offset
  drm/amdgpu: fix initializing the VM BO shadow
  drm/amdgpu: fix initializing the VM last eviction counter
  drm/amdgpu: cleanup VM shadow BO unreferencing
  drm/amdgpu: allocate GTT space for shadow VM page tables
  drm/amdgpu: rename all rbo variable to abo v2
  drm/amdgpu: remove unused member from struct amdgpu_bo
  drm/amdgpu: add a custom GTT memory manager v2
  drm/amdgpu/dce6: disable hpd on local panels
  drm/amdgpu/dce8: disable hpd on local panels
  drm/amdgpu/dce11: disable hpd on local panels
  drm/amdgpu/dce10: disable hpd on local panels
  ...

drm/tegra: Changes for v4.9-rc1

One bugfix that avoids overwriting the Y plane base address when
displaying buffers with one of the YUV/YVU formats.

* tag 'drm/tegra/for-4.9-rc1' of git://anongit.freedesktop.org/tegra/linux:
  drm/tegra: Fix window[0] base address corruption

drm/panel: Changes for v4.9-rc1

Adds support for one more panel to the simple-panel driver, fixes up a
couple of delays and flags for existing panels and finally adds a new
driver for the DSI panel found on Nexus 7 devices.

* tag 'drm/panel/for-4.9-rc1' of git://anongit.freedesktop.org/tegra/linux:
  drm/panel: Add JDI LT070ME05000 WUXGA DSI Panel
  dt-bindings: Add JDI LT070ME05000 panel bindings
  drm/panel: simple: Fix bus_format for the Olimex LCD-OLinuXino-4.3TS
  drm/panel: simple-panel: Add delay timings for Starry KR122EA0SRA
  drm/panel: simple: Fix bus flags for Ortustech com43h4m85ulc
  drm/panel: simple: Add Innolux G101ICE-L01 panel
  drm/panel: simple: Add delay timing for Sharp LQ123P1JX31
  drm/dsi: Implement DCS set/get display brightness
  drm/dsi: Order DCS helpers by command code

We can't properly detect all hypervisors and we
need this to properly tear down the hardware.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

We can't properly detect all hypervisors and we
need this to properly tear down the hardware.

v2: trivial warning fix
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Use a separate one for the copy operation and
log all the interesting parameters.
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>

Obviously missed during the rename.
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>

This fixes a memory leak since binding GTT only on demand.
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>

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>

It's pretty pointless to get the offset first and then initialize it.

Should fix issues with the new GTT manager.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

This bug seems to be present for a very long time.
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>
Cc: stable@vger.kernel.org

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

We need to clear the shadows as well.
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Close a very small window where something can go wrong.
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Unreference the shadow BOs in the error path as well and drop the NULL checks.
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

We need to access those with the system domain.

Fixes fallout from only allocating GTT space on demand.
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>

Just to cleanup some radeon leftovers.

sed -i "s/rbo/abo/g" drivers/gpu/drm/amd/amdgpu/*.c
sed -i "s/rbo/abo/g" drivers/gpu/drm/amd/amdgpu/*.h

v2: rebased
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>

Not used in a while.
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>

Only allocate address space when we really need it.

v2: fix a typo, add correct function description,
    stop leaking the node in the error case.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Otherwise we can get a hotplug interrupt storm when
we turn the panel off if hpd interrupts were enabled
by the bios.

bug:
https://bugs.freedesktop.org/show_bug.cgi?id=97471Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Otherwise we can get a hotplug interrupt storm when
we turn the panel off if hpd interrupts were enabled
by the bios.

bug:
https://bugs.freedesktop.org/show_bug.cgi?id=97471Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

Otherwise we can get a hotplug interrupt storm when
we turn the panel off if hpd interrupts were enabled
by the bios.

bug:
https://bugs.freedesktop.org/show_bug.cgi?id=97471Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

Otherwise we can get a hotplug interrupt storm when
we turn the panel off if hpd interrupts were enabled
by the bios.

bug:
https://bugs.freedesktop.org/show_bug.cgi?id=97471Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

Used the wrong index to setup the phase shedding mask.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Used the wrong index to setup the phase shedding mask.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

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

bugfixes for qemu (bochs, qxl and virtio-gpu) drm drivers

* tag 'drm-qemu-20160921' of git://git.kraxel.org/linux:
  drm/virtio: add real fence context and seqno
  drm/virtio: drop virtio_gpu_execbuffer_ioctl() wrapping
  virtio-gpu: avoid possible NULL pointer dereference
  drm/qxl: reapply cursor after SetCrtc calls
  bochs: ignore device if there isn't enougth memory

Linux 4.8-rc8

There was a lot of fallout in the imx/amdgpu/i915 drivers, so backmerge
it now to avoid troubles.

* tag 'v4.8-rc8': (1442 commits)
  Linux 4.8-rc8
  fault_in_multipages_readable() throws set-but-unused error
  mm: check VMA flags to avoid invalid PROT_NONE NUMA balancing
  radix tree: fix sibling entry handling in radix_tree_descend()
  radix tree test suite: Test radix_tree_replace_slot() for multiorder entries
  fix memory leaks in tracing_buffers_splice_read()
  tracing: Move mutex to protect against resetting of seq data
  MIPS: Fix delay slot emulation count in debugfs
  MIPS: SMP: Fix possibility of deadlock when bringing CPUs online
  mm: delete unnecessary and unsafe init_tlb_ubc()
  huge tmpfs: fix Committed_AS leak
  shmem: fix tmpfs to handle the huge= option properly
  blk-mq: skip unmapped queues in blk_mq_alloc_request_hctx
  MIPS: Fix pre-r6 emulation FPU initialisation
  arm64: kgdb: handle read-only text / modules
  arm64: Call numa_store_cpu_info() earlier.
  locking/hung_task: Fix typo in CONFIG_DETECT_HUNG_TASK help text
  nvme-rdma: only clear queue flags after successful connect
  i2c: qup: skip qup_i2c_suspend if the device is already runtime suspended
  perf/core: Limit matching exclusive events to one PMU
  ...

Last set of radeon and amdgpu changes for 4.9.  This is
mostly just the powerplay cleanup for dGPUs.  Beyond that,
just misc code cleanups and bug fixes.

* 'drm-next-4.9' of git://people.freedesktop.org/~agd5f/linux: (49 commits)
  drm/amd/amdgpu: Clean up afmt allocation in DCEv6. (v2)
  drm/amd/amdgpu: Remove division from vblank_wait
  drm/radeon/atif: Send a hotplug event when we get dgpu display request
  drm/radeon/atpx: check for ATIF dGPU wake for display events support
  drm/amdgpu/atif: Send a hotplug event when we get dgpu display request
  drm/amdgpu/atpx: check for ATIF dGPU wake for display events support
  drm/amdgpu: bump version for new vce packet support
  drm/amdgpu/vce: allow the clock table packet
  drm/amdgpu:cleanup virt related define
  drm/amdgpu: use powerplay module for dgpu in Vi.
  drm/amdgpu: set gfx clock gating for tonga/polaris.
  drm/amdgpu: set system clock gating for tonga/polaris.
  drm/amd/powerplay: export function to help to set cg by smu.
  drm/amdgpu: avoid out of bounds access on array interrupt_status_offsets
  drm/amdgpu: mark symbols static where possible
  drm/amdgpu: remove unused functions
  drm/amd/powerplay:  Replace per-asic print_performance with generic
  drm/radeon: narrow asic_init for virtualization
  drm/amdgpu:add fw version entry to info
  drm/amdgpu:determine if vPost is needed indeed
  ...

Notable changes:

- Cleanups from Fabio to some error paths and proper error propagation.

- Lots of refactoring and new code to support the new MMU version 2,
still relatively unoptimized and doesn't yet provide better process
isolation than MMUv1, but enough to get newer cores up and running.

- New hardware support: GC3000, as found on the NXP i.MX6 QuadPlus SoC.

* 'drm-etnaviv-next' of git://git.pengutronix.de/git/lst/linux: (25 commits)
  drm/etnaviv: mark whole context as lost in recover worker
  drm/etnaviv: record correct cmdbuf IOVA in dump
  drm/etnaviv: space out IOVA layout for cmdbufs on MMUv2
  drm/etnaviv: fix up model and revision for GC2000+
  drm/etnaviv: implement IOMMUv2 translation
  drm/etnaviv: handle MMU exception in IRQ handler
  drm/etnaviv: add flushing logic for MMUv2
  drm/etnaviv: add function to construct MMUv2 init buffer
  drm/etnaviv: map cmdbuf through MMU on version 2
  drm/etnaviv: split out iova search and MMU reaping logic
  drm/etnaviv: split out FE start
  drm/etnaviv: split out wait for gpu idle
  drm/etnaviv: move gpu_va() to etnaviv mmu
  drm/etnaviv: remove unused iommu_v2 header
  drm/etnaviv: move IOMMU domain allocation into etnaviv MMU
  drm/etnaviv: indirect IOMMU restore through etnaviv MMU
  drm/etnaviv: move linear window setup into etnaviv_iommuv1_restore
  drm/etnaviv: rename etnaviv_iommu_domain_restore to etnaviv_iommuv1_restore
  drm/etnaviv: only check if the cmdbuf is inside the linear window on MMUv1
  drm/etnaviv: only try to use the linear window on MMUv1
  ...