This patch introduces a guest's framebuffer sharing mechanism based on
dma-buf subsystem. With this sharing mechanism, guest's framebuffer can
be shared between guest VM and host.
v17:
- modify VFIO_DEVICE_GET_GFX_DMABUF interface. (Alex)
v16:
- add x_hot and y_hot. (Gerd)
- add flag validation for VFIO_DEVICE_GET_GFX_DMABUF. (Alex)
- rebase 4.14.0-rc6.
v15:
- add VFIO_DEVICE_GET_GFX_DMABUF ABI. (Gerd)
- add intel_vgpu_dmabuf_cleanup() to clean up the vGPU's dmabuf. (Gerd)
v14:
- add PROBE, DMABUF and REGION flags. (Alex)
v12:
- refine the lifecycle of dmabuf.
v9:
- remove dma-buf management. (Alex)
- track the dma-buf create and release in kernel mode. (Gerd) (Daniel)
v8:
- refine the dma-buf ioctl definition.(Alex)
- add a lock to protect the dmabuf list. (Alex)
v7:
- release dma-buf related allocations in dma-buf's associated release
function. (Alex)
- refine ioctl interface for querying plane info or create dma-buf.
(Alex)
v6:
- align the dma-buf life cycle with the vfio device. (Alex)
- add the dma-buf related operations in a separate patch. (Gerd)
- i915 related changes. (Chris)
v5:
- fix bug while checking whether the gem obj is gvt's dma-buf when user
change caching mode or domains. Add a helper function to do it.
(Xiaoguang)
- add definition for the query plane and create dma-buf. (Xiaoguang)
v4:
- fix bug while checking whether the gem obj is gvt's dma-buf when set
caching mode or doamins. (Xiaoguang)
v3:
- declare a new flag I915_GEM_OBJECT_IS_GVT_DMABUF in drm_i915_gem_object
to represent the gem obj for gvt's dma-buf. The tiling mode, caching
mode and domains can not be changed for this kind of gem object. (Alex)
- change dma-buf related information to be more generic. So other vendor
can use the same interface. (Alex)
v2:
- create a management fd for dma-buf operations. (Alex)
- alloc gem object's backing storage in gem obj's get_pages() callback.
(Chris)
Signed-off-by: Tina Zhang <tina.zhang@intel.com>
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
This patch is to introduce the framebuffer decoder which can decode guest
OS's framebuffer information, including primary, cursor and sprite plane.
v16:
- rebase to 4.14.0-rc6.
v14:
- refine pixel format table. (Zhenyu)
v9:
- move drm format change to a separate patch. (Xiaoguang)
v8:
- fix a bug in decoding primary plane. (Tina)
v7:
- refine framebuffer decoder code. (Zhenyu)
Signed-off-by: Tina Zhang <tina.zhang@intel.com>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Windows guest driver needs vbt in opregion, to configure the setting
for display. Without opregion support, the display registers won't
be set and this blocks display model to get the correct information
of the guest display plane.
This patch is to provide a virtual opregion for guest. The original
author of this patch is Xiaoguang Chen.
This patch is split from the "Dma-buf support for GVT-g" patch set,
with being rebased to the latest gvt-staging branch.
v3:
- add checking region index during intel_vgpu_rw. (Xiong)
v2:
- refine intel_vgpu_reg_release_opregion. (Xiong)
Here are the previous version comments:
v18:
- unmap vgpu's opregion when destroying vgpu.
v16:
- rebase to 4.14.0-rc6.
Signed-off-by: Bing Niu <bing.niu@intel.com>
Signed-off-by: Tina Zhang <tina.zhang@intel.com>
Tested-by: Xiong Zhang <xiong.y.zhang@intel.com>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Currently guest opregion is allocated and initialised when guest
write opregion base register. This is too late for kvmgt, so
move it to vgpu_create time.
Signed-off-by: Xiong Zhang <xiong.y.zhang@intel.com>
Tested-by: Tina Zhang <tina.zhang@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
More change sets for 4.16:
- Many improvements for selftests and other igt tests (Chris)
- Forcewake with PUNIT->PMIC bus fixes and robustness (Hans)
- Define an engine class for uABI (Tvrtko)
- Context switch fixes and improvements (Chris)
- GT powersavings and power gating simplification and fixes (Chris)
- Other general driver clean-ups (Chris, Lucas, Ville)
- Removing old, useless and/or bad workarounds (Chris, Oscar, Radhakrishna)
- IPS, pipe config, etc in preparation for another Fast Boot attempt (Maarten)
- OA perf fixes and support to Coffee Lake and Cannonlake (Lionel)
- Fixes around GPU fault registers (Michel)
- GEM Proxy (Tina)
- Refactor of Geminilake and Cannonlake plane color handling (James)
- Generalize transcoder loop (Mika Kahola)
- New HW Workaround for Cannonlake and Geminilake (Rodrigo)
- Resume GuC before using GEM (Chris)
- Stolen Memory handling improvements (Ville)
- Initialize entry in PPAT for older compilers (Chris)
- Other fixes and robustness improvements on execbuf (Chris)
- Improve logs of GEM_BUG_ON (Mika Kuoppala)
- Rework with massive rename of GuC functions and files (Sagar)
- Don't sanitize frame start delay if pipe is off (Ville)
- Cannonlake clock fixes (Rodrigo)
- Cannonlake HDMI 2.0 support (Rodrigo)
- Add a GuC doorbells selftest (Michel)
- Add might_sleep() check to our wait_for() (Chris)
Many GVT changes for 4.16:
- CSB HWSP update support (Weinan)
- GVT debug helpers, dyndbg and debugfs (Chuanxiao, Shuo)
- full virtualized opregion (Xiaolin)
- VM health check for sane fallback (Fred)
- workload submission code refactor for future enabling (Zhi)
- Updated repo URL in MAINTAINERS (Zhenyu)
- other many misc fixes
* tag 'drm-intel-next-2017-11-17-1' of git://anongit.freedesktop.org/drm/drm-intel: (260 commits)
drm/i915: Update DRIVER_DATE to 20171117
drm/i915: Add a policy note for removing workarounds
drm/i915/selftests: Report ENOMEM clearly for an allocation failure
Revert "drm/i915: Display WA #1133 WaFbcSkipSegments:cnl, glk"
drm/i915: Calculate g4x intermediate watermarks correctly
drm/i915: Calculate vlv/chv intermediate watermarks correctly, v3.
drm/i915: Pass crtc_state to ips toggle functions, v2
drm/i915: Pass idle crtc_state to intel_dp_sink_crc
drm/i915: Enable FIFO underrun reporting after initial fastset, v4.
drm/i915: Mark the userptr invalidate workqueue as WQ_MEM_RECLAIM
drm/i915: Add might_sleep() check to wait_for()
drm/i915/selftests: Add a GuC doorbells selftest
drm/i915/cnl: Extend HDMI 2.0 support to CNL.
drm/i915/cnl: Simplify dco_fraction calculation.
drm/i915/cnl: Don't blindly replace qdiv.
drm/i915/cnl: Fix wrpll math for higher freqs.
drm/i915/cnl: Fix, simplify and unify wrpll variable sizes.
drm/i915/cnl: Remove useless conversion.
drm/i915/cnl: Remove spurious central_freq.
drm/i915/selftests: exercise_ggtt may have nothing to do
...
Cross-subsystem Changes:
- device tree doc for the Mitsubishi AA070MC01 and Tianma TM070RVHG71
panels (Lukasz Majewski) and for a 2nd endpoint on stm32 (Philippe Cornu)
Core Changes:
The most important changes are:
- Add drm_driver .last_close and .output_poll_changed helpers to reduce
fbdev emulation footprint in drivers (Noralf)
- Fix plane clipping in core and for vmwgfx (Ville)
Then we have a bunch of of improvement for print and debug such as the
addition of a framebuffer debugfs file. ELD connector, HDMI and
improvements. And a bunch of misc improvements, clean ups and style
changes and doc updates
[airlied: drop eld bits from amdgpu_dm]
Driver Changes:
- sii8620: filter unsupported modes and add DVI mode support (Maciej Purski)
- rockchip: analogix_dp: Remove unnecessary init code (Jeffy Chen)
- virtio, cirrus: add fb create_handle support to enable screenshots(Lepton Wu)
- virtio: replace reference/unreference with get/put (Aastha Gupta)
- vc4, gma500: Convert timers to use timer_setup() (Kees Cook)
- vc4: Reject HDMI modes with too high of clocks (Eric)
- vc4: Add support for more pixel formats (Dave Stevenson)
- stm: dsi: Rename driver name to "stm32-display-dsi" (Philippe Cornu)
- stm: ltdc: add a 2nd endpoint (Philippe Cornu)
- via: use monotonic time for VIA_WAIT_IRQ (Arnd Bergmann)
* tag 'drm-misc-next-2017-11-30' of git://anongit.freedesktop.org/drm/drm-misc: (96 commits)
drm/bridge: tc358767: add copyright lines
MAINTAINERS: change maintainer for Rockchip drm drivers
drm/vblank: Fix vblank timestamp debugs
drm/via: use monotonic time for VIA_WAIT_IRQ
dma-buf: Fix ifnullfree.cocci warnings
drm/printer: Add drm_vprintf()
drm/edid: Allow HDMI infoframe without VIC or S3D
video/hdmi: Allow "empty" HDMI infoframes
dma-buf/fence: Fix lock inversion within dma-fence-array
drm/sti: Handle return value of platform_get_irq_byname
drm/vc4: Add support for NV21 and NV61.
drm/vc4: Use .pixel_order instead of custom .flip_cbcr
drm/vc4: Add support for DRM_FORMAT_RGB888 and DRM_FORMAT_BGR888
drm: Move drm_plane_helper_check_state() into drm_atomic_helper.c
drm: Check crtc_state->enable rather than crtc->enabled in drm_plane_helper_check_state()
drm/vmwgfx: Try to fix plane clipping
drm/vmwgfx: Use drm_plane_helper_check_state()
drm/vmwgfx: Remove bogus crtc coords vs fb size check
gpu: gma500: remove unneeded DRIVER_LICENSE #define
drm: don't link DP aux i2c adapter to the hardware device node
...
The etnaviv driver causes a link failure if it is built-in but THERMAL
is built as a module:
drivers/gpu/drm/etnaviv/etnaviv_gpu.o: In function `etnaviv_gpu_bind':
etnaviv_gpu.c:(.text+0x4c4): undefined reference to `thermal_of_cooling_device_register'
etnaviv_gpu.c:(.text+0x600): undefined reference to `thermal_cooling_device_unregister'
drivers/gpu/drm/etnaviv/etnaviv_gpu.o: In function `etnaviv_gpu_unbind':
etnaviv_gpu.c:(.text+0x2aac): undefined reference to `thermal_cooling_device_unregister'
Adding a Kconfig dependency on THERMAL || !THERMAL to avoid this causes
a dependency loop on x86_64:
drivers/gpu/drm/tve200/Kconfig:1:error: recursive dependency detected!
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/gpu/drm/tve200/Kconfig:1: symbol DRM_TVE200 depends on CMA
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
mm/Kconfig:489: symbol CMA is selected by DRM_ETNAVIV
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/gpu/drm/etnaviv/Kconfig:2: symbol DRM_ETNAVIV depends on THERMAL
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/thermal/Kconfig:5: symbol THERMAL is selected by ACPI_VIDEO
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/acpi/Kconfig:189: symbol ACPI_VIDEO is selected by BACKLIGHT_CLASS_DEVICE
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/video/backlight/Kconfig:158: symbol BACKLIGHT_CLASS_DEVICE is selected by DRM_PARADE_PS8622
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/gpu/drm/bridge/Kconfig:62: symbol DRM_PARADE_PS8622 depends on DRM_BRIDGE
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/gpu/drm/bridge/Kconfig:1: symbol DRM_BRIDGE is selected by DRM_TVE200
To work around this, add a new option DRM_ETNAVIV_THERMAL to optionally
enable thermal throttling support and make DRM_ETNAVIV select THERMAL
at the same time.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Add a jump target so that a call of the function "mutex_unlock" is stored
only once at the end of this function implementation.
Replace three calls by goto statements.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Add GL.OCCLUSION_QUERY_ADDR (0x03824): address where GPU stores
the occlusion query result.
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
It has been many years since the last confirmed sighting (and fix) of an
RC6 related bug (usually a system hang). Remove the parameter to stop
users from setting dangerous values, as they often set it during triage
and end up disabling the entire runtime pm instead (the option is not a
fine scalpel!).
Furthermore, it allows users to set known dangerous values which were
intended for testing and not for production use. For testing, we can
always patch in the required setting without having to expose ourselves
to random abuse.
v2: Fixup NEEDS_WaRsDisableCoarsePowerGating fumble, and document the
lack of ilk support better.
v3: Clear intel_info->rc6p if we don't support rc6 itself.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171201113030.18360-1-chris@chris-wilson.co.uk
Previously I was under the impression that the scanline counter
reads 0 when the pipe is off. Turns out that's not correct, and
instead the scanline counter simply stops when the pipe stops, and
it retains it's last value until the pipe starts up again, at which
point the scanline counter jumps to vblank start.
These jumps can cause the timestamp to jump backwards by one frame.
Since we use the timestamps to guesstimage also the frame counter
value on gen2, that would cause the frame counter to also jump
backwards, which leads to a massice difference from the previous value.
The end result is that flips/vblank events don't appear to complete as
they're stuck waiting for the frame counter to catch up to that massive
difference.
Fix the problem properly by actually making sure the scanline counter
has started to move before we assume that it's safe to enable vblank
processing.
v2: Less pointless duplication in the code (Chris)
Cc: stable@vger.kernel.org
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Fixes: b7792d8b54 ("drm/i915: Wait for pipe to start before sampling vblank timestamps on gen2")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171129153732.3612-1-ville.syrjala@linux.intel.com
i830_disable_pipe() gets called from the power well code, and thus
we're already holding the power domain mutex. That means we can't
call plane->get_hw_state() as it will also try to grab the
same mutex and will thus deadlock.
Replace the assert_plane() calls (which calls ->get_hw_state()) with
just raw register reads in i830_disable_pipe(). As a bonus we can
now get a warning if plane C is enabled even though we don't even
expose it as a drm plane.
v2: Do a separate WARN_ON() for each plane (Chris)
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Fixes: 51f5a09639 ("drm/i915: Add .get_hw_state() method for planes")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171129125411.29055-1-ville.syrjala@linux.intel.com
Fixes for 4.15. Highlights:
- DC fixes for S3, gamma, audio, pageflipping, etc.
- fix a regression in radeon from kfd removal
- fix a ttm regression with swiotlb disabled
- misc other fixes
* 'drm-fixes-4.15' of git://people.freedesktop.org/~agd5f/linux: (36 commits)
drm/radeon: remove init of CIK VMIDs 8-16 for amdkfd
drm/ttm: fix populate_and_map() functions once more
drm/amd/display: USB-C / thunderbolt dock specific workaround
drm/amd/display: Switch to drm_atomic_helper_wait_for_flip_done
drm/amd/display: fix gamma setting
drm/amd/display: Do not put drm_atomic_state on resume
drm/amd/display: Fix couple more inconsistent NULL checks in dc_resource
drm/amd/display: Fix potential NULL and mem leak in create_links
drm/amd/display: Fix hubp check in set_cursor_position
drm/amd/display: Fix use before NULL check in validate_timing
drm/amd/display: Bunch of smatch error and warning fixes in DC
drm/amd/display: Fix amdgpu_dm bugs found by smatch
drm/amd/display: try to find matching audio inst for enc inst first
drm/amd/display: fix seq issue: turn on clock before programming afmt.
drm/amd/display: fix memory leaks on error exit return
drm/amd/display: check plane state before validating fbc
drm/amd/display: Do DC mode-change check when adding CRTCs
drm/amd/display: Revert noisy assert messages
drm/amd/display: fix split viewport rounding error
drm/amd/display: Check aux channel before MST resume
...
mali-dp interface cleanups.
* 'for-upstream/mali-dp' of git://linux-arm.org/linux-ld:
drm: mali-dp: Disable planes when their CRTC gets disabled.
drm: mali-dp: Separate static internal data into a read-only structure.
drm/arm: Replace instances of drm_dev_unref with drm_dev_put.
drm: mali-dp: switch to drm_*_get(), drm_*_put() helpers
This is amdkfd pull request for -rc2. It contains three small fixes to the
CIK SDMA code, compilation error fix in kfd_ioctl.h and fix to accessing
a pointer after it was released.
* tag 'drm-amdkfd-fixes-2017-11-26' of git://people.freedesktop.org/~gabbayo/linux:
uapi: fix linux/kfd_ioctl.h userspace compilation errors
drm/amdkfd: fix amdkfd use-after-free GP fault
drm/amdkfd: Fix SDMA oversubsription handling
drm/amdkfd: Fix SDMA ring buffer size calculation
drm/amdgpu: Fix SDMA load/unload sequence on HWS disabled mode
3 hdlcd fixes/cleanups
* 'for-upstream/hdlcd' of git://linux-arm.org/linux-ld:
drm/arm: Replace instances of drm_dev_unref with drm_dev_put.
drm: Fix checkpatch issue: "WARNING: braces {} are not necessary for single statement blocks."
drm: hdlcd: Update PM code to save/restore console.
drm/imx: fix commit_tail for new drm_atomic_helper_setup_commit
Since commit 080de2e5be ("drm/atomic: Check for busy planes/connectors before
setting the commit"), drm_atomic_helper_setup_commit expects that blocking
commits have completed flipping before the commit_tail returns. Add the missing
wait_for_flip_done to commit_tail to ensure this.
* tag 'imx-drm-fixes-2017-11-30' of git://git.pengutronix.de/git/pza/linux:
drm/imx: always call wait_for_flip_done in commit_tail
- Disable transparent huge pages for now until we have a W/A
- Building fix when CONFIG_BACKLIGHT_CLASS_DEVICE is not selected
- GMBUS communication robustness
- Fbdev hotplug handling fix
gvt-fixes-2017-11-28
- regression fix for sane request alloc (Fred)
- locking fix (Changbin)
- fix invalid addr mask (Xiong)
- compression regression fix (Weinan)
- fix default pipe enable for virtual display (Xiaolin)
* tag 'drm-intel-fixes-2017-11-30' of git://anongit.freedesktop.org/drm/drm-intel:
drm/i915: Disable THP until we have a GPU read BW W/A
drm/i915/gvt: Correct ADDR_4K/2M/1G_MASK definition
drm/i915/gvt: enabled pipe A default on creating vgpu
drm/i915/gvt: Move request alloc to dispatch_workload path only
drm/i915/gvt: remove skl_misc_ctl_write handler
drm/i915/gvt: Fix unsafe locking caused by spin_unlock_bh
drm/i915: fix intel_backlight_device_register declaration
drm/i915/fbdev: Serialise early hotplug events with async fbdev config
drm/i915: Prevent zero length "index" write
drm/i915: Don't try indexed reads to alternate slave addresses
omapdrm fixes for 4.15
* Fix platform detection issue causing OMAP3 DPI output to have missing color bits
* Fix platform detection issue causing OMAP4 HDMI audio not to work
* tag 'omapdrm-4.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux:
omapdrm: hdmi4_cec: signedness bug in hdmi4_cec_init()
drm: omapdrm: Fix DPI on platforms using the DSI VDDS
omapdrm: hdmi4: Correct the SoC revision matching
drm/omap: displays: panel-dpi: add backlight dependency
drm/omap: Fix error handling path in 'omap_dmm_probe()'
ips_enabled was used as a variable of whether IPS can be enabled or not,
but should be used to test whether IPS is actually enabled.
Changes since v1:
- Call needs_modeset on new crtc state. (Ville)
- IPS can be enabled with sprite plane enabled too. (Ville)
- Fix CDCLK vs IPS workaround. (Ville)
Changes since v2:
- Only re-enable fastset when inheriting mode. (Ville)
- Put the conditions for enabling and disabling IPS in a helper.
Changes since v3:
- Keep the max_cdclk workaround working. (Ville)
- Also check logical cdclk out of paranoia.
- Remove planes check from IPS disable function for initial disable.
- Remove assert_plane_enabled/disabled checks and use
crtc_state->active_planes for hsw_enable_ips only, always allow
calling hsw_disable_ips to disable it initially in hw.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171122183901.47720-1-maarten.lankhorst@linux.intel.com
[mlankhorst: pipe_config -> crtc_state (Ville)]
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
The sun4i DRM driver maintains a list of compatible strings it uses to
check if a device node within the display component graph is a TCON.
The TCON driver also has this list, used to bind the TCON driver to
the device. These two lists are identical.
Instead of maintaining two identical lists, export the list from the
TCON driver for the DRM driver to use.
Suggested-by: Rob Herring <robh@kernel.org>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171127084632.25511-1-wens@csie.org
drm_atomic_helper_wait_for_vblanks will go away in the future.
The new drm_atomic_helper_setup_commit in 4.15 expects that blocking commits
have completed flipping before the commit_tail returns. This must be ensured
by calling wait_for_vblanks or wait_for_flip_done, where flip_done might do
a less agressive wait, which is fine for imx-drm.
Fixes: 080de2e5be (drm/atomic: Check for busy planes/connectors before
setting the commit)
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Commit d178e034d5 ("drm: omapdrm: Move FEAT_DPI_USES_VDDS_DSI feature
to dpi code") replaced usage of platform data version with SoC matching
to configure DPI VDDS. The SoC match entries were incorrect, they should
have matched on the machine name instead of the SoC family. Fix it.
The result was observed on OpenPandora with OMAP3530 where the panel only
had the Blue channel and Red&Green were missing. It was not observed on
GTA04 with DM3730.
Fixes: d178e034d5 ("drm: omapdrm: Move FEAT_DPI_USES_VDDS_DSI feature to dpi code")
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reported-by: H. Nikolaus Schaller <hns@goldelico.com>
Tested-by: H. Nikolaus Schaller <hns@goldelico.com>
Cc: stable@vger.kernel.org # 4.14
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
I believe the intention of the commit 2c9fc9bf45
("drm: omapdrm: Move FEAT_HDMI_* features to hdmi4 driver")
was to identify omap4430 ES1.x, omap4430 ES2.x and other OMAP4 revisions,
like omap4460.
By using family=OMAP4 in the match the code will treat omap4460 ES1.x in a
same way as it would treat omap4430 ES1.x
This breaks HDMI audio on OMAP4460 devices (PandaES for example).
Correct the match rule so we are not going to get false positive match.
Fixes: 2c9fc9bf45 ("drm: omapdrm: Move FEAT_HDMI_* features to hdmi4 driver")
Cc: stable@vger.kernel.org # 4.14
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The new backlight code causes a link failure when backlight
support itself is disabled:
drivers/gpu/drm/omapdrm/displays/panel-dpi.o: In function `panel_dpi_probe_of':
panel-dpi.c:(.text+0x35c): undefined reference to `of_find_backlight_by_node'
This adds a Kconfig dependency like we have for the other OMAP
display targets.
Fixes: 39135a305a ("drm/omap: displays: panel-dpi: Support for handling backlight devices")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
