"caps.buf" is always NULL here and "caps.size" is always zero.  The code
is a no-op and can be removed.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>

As now gvt init after knowing hw resource info, we can determine vGPU
type from machine size instead of pre-defined value.
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>

As now gvt init is late after MMIO initialization, use normal MMIO
read function for initial firmware exposure if no available firmware
loaded.
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>

We only depend on pvinfo register for GVT-g state detection,
not require hypervisor host detect any more.
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>

Prepare to remove detect_host() hook. Move intel iommu detection early
in intel_gvt_init().
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>

Previously intel_gvt_init() was called very early even before
MMIO initialization which had several drawbacks:
- Have to handle MMIO access for initial MMIO state dump if golden
  state firmware is not available
- Hypervisor detection should depend on pvinfo only instead of detecting
  hypervisor status.
- Don't know hw resource size e.g aperture, ggtt size to determine
  for vGPU type, etc.

This trys to move intel_gvt_init() call late after required info
has already been initialized for GVT host.
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>

The current virtual edid can only support the resolution up
to 1024x768. Update the virtual edid so that can support more
resoltions. With this new virtual edid, resolution can
be up to 1920x1200.

V2: add detailed modeline description in edid code comments
Signed-off-by: Chuanxiao Dong <chuanxiao.dong@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>

Merge branch 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next

adding runtime PM support to MIC driver, and including some
cleanups - especially using atomic helper functions
instead of specific ones - and fixups.

* 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
  drm/exynos: g2d: prevent integer overflow in
  drm/exynos: fix a timeout loop
  drm/exynos: use atomic helper commit
  drm/exynos: remove unnecessary codes
  drm/exynos: mic: Add runtime PM support
  drm/exynos: Stop using drm_framebuffer_unregister_private
  drm/exynos: mic: Fix parse_dt function
  drm/exynos: mic: Add mode_set callback function

Merge tag 'sunxi-drm-for-4.11' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into drm-next

Allwinner DRM changes for 4.11

Just one minor fix.

* tag 'sunxi-drm-for-4.11' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
  drm/sun4i: Fix a return value in case of error

This is to address what we've discussed, moving some of the minor changes
into a drm-next request.

* 'drm-vmwgfx-next' of git://people.freedesktop.org/~syeh/repos_linux:
  drm/vmwgfx: Use kmemdup instead of kmalloc and memcpy
  drm/vmwgfx: Fix depth input into drm_mode_legacy_fb_format
  drm/vmwgfx: Fix a potential integer overflow
  drm/vmwgfx: Clear an uninitialized struct member
  drm/vmwgfx: Annotate ignored return values
  drm/vmwgfx: Clear uninitialized fields of a parameter

This is the main feature pull for radeon and amdgpu for 4.11.  Highlights:
- Power and clockgating improvements
- Preliminary SR-IOV support
- ttm buffer priority support
- ttm eviction fixes
- Removal of the ttm lru callbacks
- Remove SI DPM quirks due to MC firmware issues
- Handle VFCT with multiple vbioses
- Powerplay improvements
- Lots of driver cleanups

* 'drm-next-4.11' of git://people.freedesktop.org/~agd5f/linux: (120 commits)
  drm/amdgpu: fix amdgpu_bo_va_mapping flags
  drm/amdgpu: access stolen VRAM directly on CZ (v2)
  drm/amdgpu: access stolen VRAM directly on KV/KB (v2)
  drm/amdgpu: fix kernel panic when dpm disabled on Kv.
  drm/amdgpu: fix dpm bug on Kv.
  drm/amd/powerplay: fix regresstion issue can't set manual dpm mode.
  drm/amdgpu: handle vfct with multiple vbios images
  drm/radeon: handle vfct with multiple vbios images
  drm/amdgpu: move misc si headers into amdgpu
  drm/amdgpu: remove unused header si_reg.h
  drm/radeon: drop pitcairn dpm quirks
  drm/amdgpu: drop pitcairn dpm quirks
  drm: radeon: radeon_ttm: Handle return NULL error from ioremap_nocache
  drm/amd/amdgpu/amdgpu_ttm: Handle return NULL error from ioremap_nocache
  drm/amdgpu: add new virtual display ID
  drm/amd/amdgpu: remove the uncessary parameter for ib scheduler
  drm/amdgpu: Bring bo creation in line with radeon driver (v2)
  drm/amd/powerplay: fix misspelling in header guard
  drm/ttm: revert "add optional LRU removal callback v2"
  drm/ttm: revert "implement LRU add callbacks v2"
  ...

Another round of -misc stuff:
- Noralf debugfs cleanup cleanup (not yet everything, some more driver
  patches awaiting acks).
- More doc work.
- edid/infoframe fixes from Ville.
- misc 1-patch fixes all over, as usual

Noralf needs this for his tinydrm pull request.

* tag 'drm-misc-next-2017-01-30' of git://anongit.freedesktop.org/git/drm-misc: (48 commits)
  drm/vc4: Remove vc4_debugfs_cleanup()
  dma/fence: Export enable-signaling tracepoint for emission by drivers
  drm/tilcdc: Remove tilcdc_debugfs_cleanup()
  drm/tegra: Remove tegra_debugfs_cleanup()
  drm/sti: Remove drm_debugfs_remove_files() calls
  drm/radeon: Remove drm_debugfs_remove_files() call
  drm/omap: Remove omap_debugfs_cleanup()
  drm/hdlcd: Remove hdlcd_debugfs_cleanup()
  drm/etnaviv: Remove etnaviv_debugfs_cleanup()
  drm/etnaviv: allow build with COMPILE_TEST
  drm/amd/amdgpu: Remove drm_debugfs_remove_files() call
  drm/prime: Clarify DMA-BUF/GEM Object lifetime
  drm/ttm: Make sure BOs being swapped out are cacheable
  drm/atomic: Remove drm_atomic_debugfs_cleanup()
  drm: drm_minor_register(): Clean up debugfs on failure
  drm: debugfs: Remove all files automatically on cleanup
  drm/fourcc: add vivante tiled layout format modifiers
  drm/edid: Set YQ bits in the AVI infoframe according to CEA-861-F
  drm/edid: Set AVI infoframe Q even when QS=0
  drm/edid: Introduce drm_hdmi_avi_infoframe_quant_range()
  ...

Merge tag 'drm/atmel-hlcdc/for-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/bbrezillon/linux into drm-next

Contains a single patch to create the fbdev at driver's registration
time instead of waiting for the connector status change.

* tag 'drm/atmel-hlcdc/for-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/bbrezillon/linux:
  drm/atmel-hlcdc: Rework the fbdev creation logic

Merge tag 'zxdrm-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into drm-next

ZTE DRM driver updates for 4.11:
 - Add missing selection of VIDEOMODE_HELPERS in Kconfig, since ZTE DRM
   driver uses drm_display_mode_to_videomode().
 - Enable HDMI audio support through SPDIF interface based on generic
   hdmi-audio-codec driver.
 - Enable VOU VL (Video Layer) to support overlay plane with scaling
   function.
 - Refine zx_vou driver a bit and then add TV Encoder output device
   support.

[airlied: fixup plane format change]

* tag 'zxdrm-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  drm: zte: add tvenc driver support
  dt: add bindings for ZTE tvenc device
  drm: zte: add function to configure vou_ctrl dividers
  drm: zte: move struct vou_inf into zx_vou driver
  drm: zte: add interlace mode support
  drm: zte: add overlay plane support
  drm: zte: add .atomic_disable hook to disable graphic layer
  drm: zte: make zx_plane accessible from zx_vou driver
  drm: zte: support hdmi audio through spdif
  drm: zte: select VIDEOMODE_HELPERS in Kconfig

Updated pull request after I pulled first time :)

* 'drm-intel-next' of git://anongit.freedesktop.org/git/drm-intel:
  drm/i915: Pevent copying uninitialised garbage into vma->ggtt_view

Hope I'm not too late before the cutoff for the v4.11 with these patches.
Mostly an asorted set of fixes that we have discovered while playing with
the code and preparing for the next set of features.

* 'for-upstream/mali-dp' of git://linux-arm.org/linux-ld:
  drm: mali-dp: fix stride setting for multi-plane formats
  drm: mali-dp: Add plane offset to the plane's physical start address register
  drm: mali-dp: Check for sufficient address space
  drm: mali-dp: Check hw version matches device-tree
  drm: mali-dp: Rename malidp_input_format to malidp_pixel_format
  drm: mali-dp: fix Lx_CONTROL register fields clobber
  drm: mali-dp: Fix transposed horizontal/vertical flip
  drm: mali-dp: Fix destination size handling when rotating
  drm: mali-dp: Don't force source size == crtc size
  drm: mali-dp: Check more use cases in the plane's ->atomic_check()
  drm: malidp: Remove event_list member from struct malidp_drm
  drm/arm/malidp: Fix possible dereference of NULL

The size computations done in the ioctl function use an integer.
If userspace submits a request with req->cmd_nr or req->cmd_buf_nr
set to INT_MAX, the integer computations overflow later, leading
to potential (kernel) memory corruption.

Prevent this issue by enforcing a limit on the number of submitted
commands, so that we have enough headroom later for the size
computations.

Note that this change has no impact on the currently available
users in userspace, like e.g. libdrm/exynos.

While at it, also make a comment about the size computation more
detailed.
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

We were trying to print an error message if we timed out here, but the
loop actually ends with "tries" set to UINT_MAX and not zero.  Fix this
by changing from tries-- to --tries.

A for loop would actually be the most natural way to do this.  My fix
means we only loop 99 times instead of 100 but that's probably ok.

Fixes: a696394c ('drm/exynos: mixer: simplify loop in vp_win_reset()')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

This patch replaces specific atomic commit function
with atomic helper commit one.

For this, it removes existing atomic commit function
and relevant code specific to Exynos DRM and makes
atomic helper commit to be used instead.

Below are changes for the use of atomic helper commit:
- add atomic_commit_tail callback specific to Exynos DRM
  . default implemention of atomic helper doesn't mesh well
    with runtime PM so the device driver which supports runtime
    PM should call drm_atomic_helper_commit_modeset_enables function
    prior to drm_atomic_helper_commit_planes function call.
    atomic_commit_tail callback implements this call ordering.
- allow plane commit only in case that CRTC device is enabled.
  . for this, it calls atomic_helper_commit_planes function
    with DRM_PLANE_COMMIT_ACTIVE_ONLY flag in atomic_commit_tail callback.
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.com>

This patch removes exynos_drm_crtc_cancel_page_flip call
when drm is closed because at that time, events will be released
by drm_events_release function.

Changelog v1:
- remove exynos_drm_crtc_cancel_page_flip function also because
  this funtion isn't used anymore.
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>

This patch adds runtime support calls to notify device core when MIC
device is really in use. Runtime PM is implemented by enabling and
disabling clocks like in other Exynos DRM subdrivers. Adding runtime
PM support is needed to let power domain with this device to be turned
off when display is not used.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

This is the deprecated function for when you embedded the framebuffer
somewhere else (which breaks refcounting). But exynos is using
drm_framebuffer_remove and a free-standing fb, so this is rendundant.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

The OF graph is not necessary because the panel is a child of
dsi. therefore, the parse_dt function of dsi does not need to
check the remote_node connected to the panel. and the whole
parse_dt function should be refactored later.
Signed-off-by: Hoegeun Kwon <hoegeun.kwon@samsung.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

Before applying the patch, used the of_get_videomode function to
parse the display-timings in the panel which is the child driver
of dsi in the devicetree. this is wrong. So removed the
of_get_videomode and fixed to get videomode struct through
mode_set callback function.
Signed-off-by: Hoegeun Kwon <hoegeun.kwon@samsung.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

Now that we wait for DRM panels to be available before registering the
DRM device (returning -EPROBE_DEFER if the panel has not been probed
yet), we no longer need to put the fbdev creation code in
->output_poll_changed().

This removes the 10 secs delay between DRM dev registration and fbdev
creation (polling period = 10 seconds).
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reported-by: Alex Vazquez <avazquez.dev@gmail.com>

drm_debugfs_cleanup() now removes all minor->debugfs_list entries
automatically, so the drm_driver.debugfs_cleanup callback is not
needed.

Cc: eric@anholt.net
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170126225621.12314-17-noralf@tronnes.org

It adds the TV Encoder driver to support video output in PAL and NTSC
format.  The driver uses syscon/regmap interface to configure register
bit sitting in SYSCTRL module for DAC power control.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>

It adds bindings doc for ZTE VOU TV Encoder device.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>

The clock control module (CRM) cannot always provide desired frequency
for all VOU output devices.  That's why VOU integrates a few dividers
to further divide the clocks from CRM.  Let's add an interface for
configuring these dividers.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>

Although data in struct vou_inf is defined per output device, it doesn't
belong to the device itself but VOU control module.  All these data can
just be defined in VOU driver, and output device driver only needs to
invoke VOU driver function with device ID to enable/disable specific
output device.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>

It adds interlace mode support in VOU TIMING_CTRL and channel control
block, so that VOU driver gets ready to support output device in
interlace mode like TV Encoder.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>

It enables VOU VL (Video Layer) to support overlay plane with scaling
function.  VL0 has some quirks on scaling support.  We choose to skip it
and only adds VL1 and VL2 into DRM core for now.

Function zx_plane_atomic_disable() gets moved around with no changes to
save a forward declaration.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>

There are a few hardware bits for each graphic layer to control main/aux
channel and clock selection, as well as the layer enabling.  These bits
sit outside the layer block itself, but in VOU control glue block.  We
currently set these bits up at CRTC initialization for once, and do not
support disabling the layer.

This patch creates a pair of functions zx_vou_layer_enable[disable] to
be invoked from plane hooks .atomic_update and .atomic_disable to set up
and tear down the layer.  This is generic for both graphic and video
layers, so it will make the overlay plane support to be added later much
easier.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>

Move struct zx_plane from zx_plane.c to zx_plane.h, so that it can be
accessed from zx_vou driver, and we can save the use of struct
zx_layer_data completely.  More importantly, those additional data used
by VOU controller to enable/disable graphic and video layers can later
be added and accessed much more easily from zx_vou driver.

While at it, we make two changes to zx_plane_init() interface:

 - Encode struct device pointer in zx_plane, so that we do not need to
   pass it as a parameter.
 - Change return of zx_plane_init() from struct drm_plane pointer to
   error code, since we can get the pointer from zx_plane in zx_vou
   driver now.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>

It enables HDMI audio support through SPDIF interface based on generic
hdmi-audio-codec driver.  The HDMI hardware supports more audio
interfaces than SPDIF, like I2S, which may be added later.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

ZTE DRM driver uses drm_display_mode_to_videomode() in function
zx_crtc_enable().  Select VIDEOMODE_HELPERS in Kconfig to fix the
following link error.

  LD      vmlinux.o
  MODPOST vmlinux.o
drivers/built-in.o: In function `zx_crtc_enable':
:(.text+0xbdeb8): undefined reference to `drm_display_mode_to_videomode'
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

Currently this tracepoint is solely used by dma_fence_enable_sw_signaling,
however I have a need to manually perform the hw enabling of the
signaling and would like to emit this tracepoint for completeness.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Sumit Semwal <sumit.semwal@linaro.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170124115758.31353-1-chris@chris-wilson.co.uk

They are 64bit not 32 for a while now.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

We don't need to use the PCI BAR on APUs. This allows us to access
the full VRAM directly without being limited by the BAR size.

v2: squash in 64bit shift fix
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>

We don't need to use the PCI BAR on APUs. This allows us to access
the full VRAM directly without being limited by the BAR size.

v2: squash in 64bit shift fix
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>