Commit Graph

708480 Commits

Author SHA1 Message Date
Leo (Sunpeng) Li
c2cea7063b drm/amd/display: Unify DRM state variable namings.
Use new_*_state and old_*_state for their respective new/old DRM object
states.

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-10-17 10:42:56 +10:00
Leo (Sunpeng) Li
0bc9706db3 drm/amd/display: Use new DRM API where possible
To conform to DRM's new API, we should not be accessing a DRM object's
internal state directly. Rather, the DRM for_each_old/new_* iterators,
and drm_atomic_get_old/new_* interface should be used.

This is an ongoing process. For now, update the DRM-facing atomic
functions, where the atomic state object is given.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-10-17 10:42:55 +10:00
Dave Airlie
9ba29fcb76 drm/amd/display: Use DRM new-style object iterators.
Use the correct for_each_new/old_* iterators instead of for_each_*

The following functions were considered:

amdgpu_dm_find_first_crtc_matching_connector: use for_each_new
    - Old from_state_var flag was always choosing the new state

amdgpu_dm_display_resume: use for_each_new
    - drm_atomic_helper_duplicate_state is called during suspend to
      cache the state
    - It sets 'state' within the state triplet to 'new_state'

amdgpu_dm_commit_planes: use for_each_old
    - Called after the state was swapped (via atomic commit tail)

amdgpu_dm_atomic_commit: use for_each_new
    - Called before the state is swapped

amdgpu_dm_atomic_commit_tail: use for_each_old
    - Called after the state was swapped

dm_update_crtcs_state: use for_each_new
    - Called before the state is swapped (via atomic check)

amdgpu_dm_atomic_check: use for_each_new
    - Called before the state is swapped

v2: Split out typo fixes to a new patch.

v3: Say "functions considered" instead of "affected functions". The
    latter implies that changes are made to each.

[airlied: squashed with my hacks]

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-10-17 10:42:38 +10:00
Dave Airlie
6c94804fde Merge tag 'drm-misc-next-2017-10-16' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
Quick 4.15 misc pull for the build fix:

Cross-subsystem Changes:
- piles an piles of misc/trivial patches all over, some more from
  outreachy applicants

Core Changes:
- build fix for the bridge/of cleanup (Maarten)
- fix vblank count in arm_vblank_event (Ville)
- some kerneldoc typo fixes from Thierry

Driver Changes:
- vc4: Fix T-format tiling scanout, cleanup clock divider w/a (Anholt)
- sun4i: small cleanups and improved code comments all over (Chen-Yu
  Tsai)

* tag 'drm-misc-next-2017-10-16' of git://anongit.freedesktop.org/drm/drm-misc: (21 commits)
  drm/via: use ARRAY_SIZE
  drm/gma500: use ARRAY_SIZE
  drm/sun4i: hdmi: Move PAD_CTRL1 setting to mode_set function
  drm/sun4i: hdmi: Document PAD_CTRL1 output invert bits
  drm/sun4i: backend: Add comment explaining why registers are cleared
  drm/sun4i: backend: Use drm_fb_cma_get_gem_addr() to get display memory
  drm/sun4i: backend: Create regmap after access is possible
  drm/sun4i: don't add components that are already in the queue
  drm/vc4: Fix pitch setup for T-format scanout.
  drm/vc4: Move the DSI clock divider workaround closer to the clock call.
  drm: Replace kzalloc with kcalloc
  drm/tinydrm: Remove explicit .best_encoder assignment
  drm/tinydrm: Replace dev_error with DRM_DEV_ERROR
  drm/drm_of: Move drm_of_panel_bridge_remove_function into header.
  drm/atomic-helper: Fix reference to drm_crtc_send_vblank_event()
  drm/atomic-helper: Fix typo
  drm: Add missing __user annotation to drm_syncobj_array_find()
  drm/rockchip: add PINCTRL dependency for LVDS
  drm/kirin: Checking for IS_ERR() instead of NULL
  driver:gpu: return -ENOMEM on allocation failure.
  ...
2017-10-17 10:10:17 +10:00
Jérémy Lefaure
2e20c9ddae drm/via: 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: Thierry Reding <treding@nvidia.com>
Signed-off-by: Jérémy Lefaure <jeremy.lefaure@lse.epita.fr>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20171016023357.20174-1-jeremy.lefaure@lse.epita.fr
2017-10-16 11:29:28 +02:00
Jérémy Lefaure
c7d234dc67 drm/gma500: use ARRAY_SIZE
Using the ARRAY_SIZE macro improves the readability of the code. Also,
it is useless to re-invent it.

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: Thierry Reding <treding@nvidia.com>
Signed-off-by: Jérémy Lefaure <jeremy.lefaure@lse.epita.fr>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20171016023047.19145-1-jeremy.lefaure@lse.epita.fr
2017-10-16 11:29:05 +02:00
Chen-Yu Tsai
bfddd14697 drm/sun4i: hdmi: Move PAD_CTRL1 setting to mode_set function
Initially we configured the PAD_CTRL1 register at probe/bind time.
However it seems the HDMI controller will modify some of the bits
in this register by itself. On the A10 it is particularly annoying
as it toggles the output invert bits, which inverts the colors on
the display output.

The U-boot driver this driver is based on sets this register twice,
though it seems it's only needed for actual display output. Hence
we move it to the mode_set function.

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/20171014040252.9621-8-wens@csie.org
2017-10-16 09:54:46 +02:00
Chen-Yu Tsai
31f5232eff drm/sun4i: hdmi: Document PAD_CTRL1 output invert bits
While debugging inverted color from the HDMI output on the A10, I
found that the lowest 3 bits were set. These were cleared on A20
boards that had normal display output. By manually toggling these
bits the mapping of the color components to these bits was found.

While these are not used anywhere, it would be nice to document
them somewhere.

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/20171014040252.9621-7-wens@csie.org
2017-10-16 09:54:21 +02:00
Chen-Yu Tsai
936598d16e drm/sun4i: backend: Add comment explaining why registers are cleared
Many of the backend's layer configuration registers have undefined
default values. This poses a risk as we use regmap_update_bits in
some places, and don't overwrite the whole register.

At probe/bind time we explicitly clear all the control registers
by writing 0 to them. This patch adds a more detailed explanation
on why we're doing this.

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/20171014040252.9621-5-wens@csie.org
2017-10-16 09:54:01 +02:00
Chen-Yu Tsai
cff2192f80 drm/sun4i: backend: Use drm_fb_cma_get_gem_addr() to get display memory
Commit 4636ce93d5 ("drm/fb-cma-helper: Add drm_fb_cma_get_gem_addr()")
adds a new helper, which covers fetching a drm_framebuffer's GEM object
and calculating the buffer address for a given plane.

This patch uses this helper to replace our own open coded version of the
same function.

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/20171014040252.9621-4-wens@csie.org
2017-10-16 09:53:55 +02:00
Chen-Yu Tsai
8270249fbe drm/sun4i: backend: Create regmap after access is possible
The backend has various clocks and reset controls that need to be
enabled and deasserted before register access is possible.

Move the creation of the regmap to after the clocks and reset controls
have been configured where it makes more sense.

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/20171014040252.9621-3-wens@csie.org
2017-10-16 09:53:50 +02:00
Chen-Yu Tsai
e8afb7b67f drm/sun4i: don't add components that are already in the queue
Even though the components framework can handle duplicate entries,
the extra entries cause a lot more debug messages to be generated,
which would be confusing to developers not familiar with our driver
and the framework in general.

Instead, we can scan the relatively small queue and check if the
component to be added is already queued up. Since the display
pipelines are symmetrical (not considering the third display
pipeline on the A80), and we add components level by level, when
we get to the second instance at the same level, any shared downstream
components would already be in the queue.

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/20171014040252.9621-2-wens@csie.org
2017-10-16 09:53:44 +02:00
Eric Anholt
652badb945 drm/vc4: Fix pitch setup for T-format scanout.
The documentation said to use src_w here, and I didn't consider that
we actually needed to be using pitch somewhere in our setup.  Fixes
scanout on my DSI panel when X11 does initial setup with 1920x1080
HDMI and 800x480 DSI both at 0,0 of the same framebuffer.

v2: Add some comments requested by Boris

Signed-off-by: Eric Anholt <eric@anholt.net>
Fixes: 98830d91da ("drm/vc4: Add T-format scanout support.")
Link: https://patchwork.freedesktop.org/patch/msgid/20170927193209.11870-1-eric@anholt.net
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-10-13 16:40:24 -07:00
Dave Airlie
787e1b74b7 Merge branch 'etnaviv/next' of https://git.pengutronix.de/git/lst/linux into drm-next
Most notable addition this time is the support for the GPU performance
counters by Christian. This has been in the making for some time and it
has matured a lot. Since this is adding UAPI, the corresponding WIP
userspace can be found at [1] mesa/libdrm repos. I expect that
Christian sends out the final userspace patches for this once you have
pulled the kernel bits.

Philipp optimized the probe path, so etnaviv gets out of the way for
systems that want to boot real quick.

I've done mostly cleanups, disentangling etnaviv from the IOMMU API,
with some MMUv1 optimizations on the way.

* 'etnaviv/next' of https://git.pengutronix.de/git/lst/linux: (36 commits)
  drm/etnaviv: remove unnecessary clock stabilization delay
  drm/etnaviv: reduce reset delay
  drm/etnaviv: remove unused function etnaviv_gem_new
  drm/etnaviv: remove stale comment
  drm/etnaviv: submit supports performance monitor requests
  drm/etnaviv: enable debug registers on demand
  drm/etnaviv: need to disable clock gating when doing profiling
  drm/etnaviv: add MC perf domain
  drm/etnaviv: add TX perf domain
  drm/etnaviv: add RA perf domain
  drm/etnaviv: add SE perf domain
  drm/etnaviv: add PA perf domain
  drm/etnaviv: add SH perf domain
  drm/etnaviv: add PE perf domain
  drm/etnaviv: add HI perf domain
  drm/etnaviv: use 'sync points' for performance monitor requests
  drm/etnaviv: clear alloced event
  drm/etnaviv: add 'sync point' support
  drm/etnaviv: add performance monitor request processing
  drm/etnaviv: copy pmrs from userspace
  ...
2017-10-14 09:39:56 +10:00
Eric Anholt
d409eeafa9 drm/vc4: Move the DSI clock divider workaround closer to the clock call.
We want the adjusted_mode->clock to be the actual clock we're
expecting to program, so that consumers see the right values for clock
and vrefresh.

Signed-off-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20170815234722.20700-1-eric@anholt.net
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-10-13 16:37:09 -07:00
Harsha Sharma
4b947b1c5a drm: Replace kzalloc with kcalloc
Prefer kcalloc over kzalloc to allocate an array.
This patch fixes checkcpatch issue.

Signed-off-by: Harsha Sharma <harshasharmaiitr@gmail.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20171013073747.29877-1-harshasharmaiitr@gmail.com
Link: https://patchwork.freedesktop.org/patch/msgid/20171013073747.29877-1-harshasharmaiitr@gmail.com
2017-10-13 15:49:03 -04:00
Haneen Mohammed
9205281cb3 drm/tinydrm: Remove explicit .best_encoder assignment
Since the driver is relying on the atomic helpers, remove the explicit
.best_encoder assignment and let the core call
drm_atomic_helper_best_encoder().

Signed-off-by: Haneen Mohammed <hamohammed.sa@gmail.com>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20171010205858.GA4806@Haneen
2017-10-13 17:34:51 +02:00
Harsha Sharma
e43e81810c drm/tinydrm: Replace dev_error with DRM_DEV_ERROR
Convert instances of dev_error to DRM_DEV_ERROR as we have
DRM_DEV_ERROR variants of drm print macros.

Signed-off-by: Harsha Sharma <harshasharmaiitr@gmail.com>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20171006221738.30200-1-harshasharmaiitr@gmail.com
2017-10-13 17:34:42 +02:00
Maarten Lankhorst
512721a14a drm/drm_of: Move drm_of_panel_bridge_remove_function into header.
Core drm shouldn't depend on anything in drm-kms-helper, or the drm
module will fail to load.

insmod drm fails with
[ 6087.674390] drm: Unknown symbol drm_panel_bridge_remove (err 0)

which is defined in drm_kms_helper.ko

This call was added by commit c70087e8f1 ("drm/drm_of: add
drm_of_panel_bridge_remove function"), and the fix is defining it in the
drm_of.h header, to break the circular dependency.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/8f95e623-9480-97dc-2414-77086d8aa49d@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@intel.com> #irc
Fixes: c70087e8f1 ("drm/drm_of: add drm_of_panel_bridge_remove function")
Acked-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
2017-10-13 16:59:36 +02:00
Thierry Reding
277b09cfa3 drm/atomic-helper: Fix reference to drm_crtc_send_vblank_event()
Fix up this reference so that the proper link is generated in the
documentation and so that people don't go chasing after the wrong
function for an embarrassingly long time.

Acked-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171012140857.9559-1-thierry.reding@gmail.com
2017-10-13 15:41:04 +02:00
Thierry Reding
9ac078159e drm/atomic-helper: Fix typo
Fix "esay-to-use" to "easy-to-use" typo.

Acked-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171012140616.9002-1-thierry.reding@gmail.com
2017-10-13 15:40:25 +02:00
Ville Syrjälä
9e55446273 drm: Add missing __user annotation to drm_syncobj_array_find()
'user_handles' needs a __user annotation for fix the following sparse
warning:
drm_syncobj.c:813:37: warning: incorrect type in argument 2 (different address spaces)
drm_syncobj.c:813:37:    expected void const [noderef] <asn:1>*from
drm_syncobj.c:813:37:    got void *user_handles
drm_syncobj.c:875:38: warning: incorrect type in argument 2 (different address spaces)
drm_syncobj.c:875:38:    expected void *user_handles
drm_syncobj.c:875:38:    got void [noderef] <asn:1>*<noident>
drm_syncobj.c:908:38: warning: incorrect type in argument 2 (different address spaces)
drm_syncobj.c:908:38:    expected void *user_handles
drm_syncobj.c:908:38:    got void [noderef] <asn:1>*<noident>
drm_syncobj.c:941:38: warning: incorrect type in argument 2 (different address spaces)
drm_syncobj.c:941:38:    expected void *user_handles
drm_syncobj.c:941:38:    got void [noderef] <asn:1>*<noident>

Cc: Jason Ekstrand <jason@jlekstrand.net>
Fixes: 3e6fb72d6c ("drm/syncobj: Add a syncobj_array_find helper")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170901165328.24459-2-ville.syrjala@linux.intel.com
Reviewed-by: Thierry Reding <treding@nvidia.com>
2017-10-13 16:01:06 +03:00
Dave Airlie
972805c137 omapdrm changes for 4.15
* OMAP4 HDMI CEC support
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Merge tag 'omapdrm-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux into drm-next

omapdrm changes for 4.15

* OMAP4 HDMI CEC support

* tag 'omapdrm-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux:
  omapdrm: omapdss_hdmi_ops: add lost_hotplug op
  omapdrm: hdmi4: hook up the HDMI CEC support
  omapdrm: hdmi4_cec: add OMAP4 HDMI CEC support
  omapdrm: hdmi4: refcount hdmi_power_on/off_core
  omapdrm: hdmi4: move hdmi4_core_powerdown_disable to hdmi_power_on_core()
  omapdrm: hdmi4: prepare irq handling for HDMI CEC support
  omapdrm: hdmi4: make low-level functions available
  omapdrm: hdmi.h: extend hdmi_core_data with CEC fields
  omapdrm: encoder-tpd12s015: keep ls_oe_gpio high
2017-10-13 17:33:07 +10:00
Dave Airlie
d0f6d40130 Merge tag 'drm-misc-next-2017-10-12' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
More 4.15 drm-misc stuff:

Cross-subsystem Changes:
- bridge cleanup refactor (Benjamin Gaignard)

Core Changes:
- less surprising atomic iterators (Maarten), fixes an oops introduced
  in drm-next
- better gem/fb helper docs (Noralf)
- fix dma-buf rcu races (Christian König)

Driver Changes:
- adv7511: CEC support (Hans Verkuil)
- sun4i update from Chen-Yu to improve hdmi and A31 support
- sii8620: add remote control support (Maceiej Purski)

New drivers:
- SiI9234 bridge driver (Maciej Purski)
- 7" rpi touch panel (Eric Anholt)

Note that this contains a topic pull from regmap, needed by the sun4i
changes. Mark Brown sent that out for pulling into drm-misc.

* tag 'drm-misc-next-2017-10-12' of git://anongit.freedesktop.org/drm/drm-misc: (29 commits)
  drm/dp: WARN about invalid/unknown link rates and bw codes
  drm/msm/mdp5: remove less than 0 comparison for unsigned value
  drm/bridge/sii8620: add remote control support
  drm/sun4i: hdmi: Add support for A31's HDMI controller
  drm/sun4i: hdmi: Add A31 specific DDC register definitions
  drm/sun4i: hdmi: Add support for controller hardware variants
  dt-bindings: display: sun4i: Add binding for A31 HDMI controller
  drm/sun4i: hdmi: Allow using second PLL as TMDS clk parent
  drm/sun4i: hdmi: create a regmap for later use
  drm/sun4i: hdmi: Disable clks in bind function error path and unbind function
  drm/sun4i: tcon: Add support for demuxing TCON output on A31
  drm/sun4i: tcon: Add variant callback for TCON output muxing
  drm/bridge/synopsys: dsi :remove is_panel_bridge
  drm/vc4: remove bridge from driver internal structure
  drm/stm: ltdc: remove bridge from driver internal structure
  drm/drm_of: add drm_of_panel_bridge_remove function
  drm/bridge: make drm_panel_bridge_remove more robust
  dma-fence: fix dma_fence_get_rcu_safe v2
  dma-buf: make reservation_object_copy_fences rcu save
  drm/atomic: Unref duplicated drm_atomic_state in drm_atomic_helper_resume()
  ...
2017-10-13 16:24:59 +10:00
Arnd Bergmann
479b9db274 drm/rockchip: add PINCTRL dependency for LVDS
The new driver fails to build when CONFIG_PINCTRL is disabled:

drivers/gpu/drm/rockchip/rockchip_lvds.c: In function 'rockchip_lvds_grf_config':
drivers/gpu/drm/rockchip/rockchip_lvds.c:229:39: error: dereferencing pointer to incomplete type 'struct dev_pin_info'
   if (lvds->pins && !IS_ERR(lvds->pins->default_state))

This adds the respective Kconfig dependency.

Fixes: 34cc0aa254 ("drm/rockchip: Add support for Rockchip Soc LVDS")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Mark Yao <mark.yao@rock-chips.com>
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171005120957.485433-1-arnd@arndb.de
2017-10-13 09:43:16 +08:00
Arnd Bergmann
25e1a79874 drm: vblank: remove drm_timestamp_monotonic parameter
There is a risk of overflowing vblank timestamps in 2038 or 2106 if
someone sets the drm_timestamp_monotonic module parameter to zero.

I found no indication of anyone ever setting the parameter, or
complaining about the default being wrong, after it was introduced
as a way to handle backwards-compatibility with linux prior to
c61eef726a ("drm: add support for monotonic vblank timestamps"),
so it's probably safer to just remove the parameter completely
and only allowing the default behavior.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2017-10-13 08:34:50 +10:00
Arnd Bergmann
67680d3c04 drm: vblank: use ktime_t instead of timeval
The drm vblank handling uses 'timeval' to store timestamps in either
monotonic or wall-clock time base. In either case, it reads the current
time as a ktime_t in get_drm_timestamp() and converts it from there.

This is a bit suspicious, as users of 'timeval' often suffer from
the time_t overflow in y2038. I have gone through this code and
found that it is unlikely to cause problems here:

- The user space ABI does not use time_t or timeval, but uses
  'u32' and 'long' as the types. This means at least that rebuilding
  user programs against a new libc with 64-bit time_t does not
  change the ABI.

- As of commit c61eef726a ("drm: add support for monotonic vblank
  timestamps") in linux-3.8, the monotonic timestamp is the default
  and can only get reverted to wall-clock through a module-parameter.

- With the default monotonic timestamps, there is no problem at all.

- The drm_wait_vblank_ioctl() interface is alway safe on 64-bit
  architectures, on 32-bit it might overflow the 'long' timestamps
  in 2038 with wall-clock timestamps.

- The event handling uses 'u32' seconds, which overflow in 2106
  on both 32-bit and 64-bit machines, when wall-clock timestamps
  are used.

- The effect of overflowing either of the two is only temporary
  (during the overflow, and is likely to keep working again
  afterwards. It is likely the same problem as observing a
  'settimeofday()' call, which was the reason for moving to the
  monotonic timestamps in the first place.

Overall, this seems good enough, so my patch removes the use of
'timeval' from the vblank handling altogether and uses ktime_t
consistently, except for the part where we copy the data to user
space structures in the existing format.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2017-10-13 08:34:46 +10:00
Dan Carpenter
7af35b0add drm/kirin: Checking for IS_ERR() instead of NULL
The of_graph_get_remote_node() function doesn't return error pointers,
it returns NULL on error so I've updated the check.

Fixes: 86418f90a4 ("drm: convert drivers to use of_graph_get_remote_node")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20171005125751.jvtjms62vbtxuvak@mwanda
2017-10-12 14:09:45 -04:00
Allen Pais
d9d7a3ef47 driver:gpu: return -ENOMEM on allocation failure.
Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/1505287939-14106-3-git-send-email-allen.lkml@gmail.com
2017-10-12 19:55:21 +02:00
Ville Syrjälä
632c6e4ede drm/vblank: Fix flip event vblank count
On machines where the vblank interrupt fires some time after the start
of vblank (or we just manage to race with the vblank interrupt handler)
we will currently stuff a stale vblank counter value into the flip event,
and thus we'll prematurely complete the flip.

Switch over to drm_crtc_accurate_vblank_count() to make sure we have an
up to date counter value, crucially also remember to add the +1 so that
the delayed vblank interrupt won't complete the flip prematurely.

Cc: stable@vger.kernel.org
Cc: Daniel Vetter <daniel@ffwll.ch>
Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171010133322.24029-1-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel@ffwll.ch> #irc
2017-10-12 17:34:28 +03:00
Hans Verkuil
019114efd9 omapdrm: omapdss_hdmi_ops: add lost_hotplug op
The CEC framework needs to know when the hotplug detect signal
disappears, since that means the CEC physical address has to be
invalidated (i.e. set to f.f.f.f).

Add a lost_hotplug op that is called when the HPD signal goes away.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-10-12 10:49:14 +03:00
Hans Verkuil
1897e1a394 omapdrm: hdmi4: hook up the HDMI CEC support
Hook up the HDMI CEC support in the hdmi4 driver.

It add the CEC irq handler, the CEC (un)init calls and tells the CEC
implementation when the physical address changes.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-10-12 10:49:14 +03:00
Hans Verkuil
8d7f934df8 omapdrm: hdmi4_cec: add OMAP4 HDMI CEC support
Add the source and header for the OMAP4 HDMI CEC support.

This code is not yet hooked up, that will happen in the next patch.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-10-12 10:49:14 +03:00
Hans Verkuil
a141a29612 omapdrm: hdmi4: refcount hdmi_power_on/off_core
The hdmi_power_on/off_core functions can be called multiple times:
when the HPD changes and when the HDMI CEC support needs to power
the HDMI core.

So use a counter to know when to really power on or off the HDMI core.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-10-12 10:49:14 +03:00
Hans Verkuil
1d54ecf230 omapdrm: hdmi4: move hdmi4_core_powerdown_disable to hdmi_power_on_core()
Call hdmi4_core_powerdown_disable() in hdmi_power_on_core() to
power up the HDMI core (needed for CEC). The same call can now be dropped
in hdmi4_configure().

Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-10-12 10:49:14 +03:00
Hans Verkuil
f3096a4ada omapdrm: hdmi4: prepare irq handling for HDMI CEC support
Pass struct omap_hdmi to the irq handler since it will need access
to hdmi.core.

Do not clear the IRQ_HDMI_CORE bit: that will be controlled by the
HDMI CEC code.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-10-12 10:49:14 +03:00
Hans Verkuil
5bebbbfecc omapdrm: hdmi4: make low-level functions available
Three low-level functions in hdmi4.c and hdmi4_core.c are
made available for use by the OMAP4 CEC support.

Renamed the prefix to hdmi4 since these are OMAP4 specific.

These function deal with the HDMI core and are needed to
power it up for use with CEC, even when the HPD is low.

Background: even if the HPD is low it should still be possible
to use CEC. Some displays will set the HPD low when they go into standby or
when they switch to another input, but CEC is still available and able
to wake up/change input for such a display.

This is explicitly allowed by the CEC standard.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-10-12 10:49:14 +03:00
Hans Verkuil
eb2f17b496 omapdrm: hdmi.h: extend hdmi_core_data with CEC fields
Extend the hdmi_core_data struct with the additional fields needed
for CEC.

Also fix a simple typo in a comment.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-10-12 10:49:14 +03:00
Hans Verkuil
3b86b9ec21 omapdrm: encoder-tpd12s015: keep ls_oe_gpio high
For OMAP4 CEC support the CEC pin should always be on. So keep
ls_oe_gpio high all the time in order to support CEC.

Background: even if the HPD is low it should still be possible
to use CEC. Some displays will set the HPD low when they go into standby or
when they switch to another input, but CEC is still available and able
to wake up/change input for such a display.

This is explicitly allowed by the CEC standard.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-10-12 10:49:14 +03:00
Dave Airlie
c5c7bc71a0 2nd batch of v4.15 features:
- lib/scatterlist updates, use for userptr allocations (Tvrtko)
 - Fixed point wrapper cleanup (Mahesh)
 - Gen9+ transition watermarks, watermark optimization and fixes (Mahesh)
 - Display IPC (Isochronous Priority Control) support (Mahesh)
 - GEM workaround fixes (Oscar)
 - GVT: PCI config sanitize series (Changbin)
 - GVT: Workload submission error handling series (Fred)
 - PSR fixes and refactoring (Rodrigo)
 - HWSP based optimizations (Chris)
 - Private PAT management (Zhi)
 - IRQ handling fixes and refactoring (Ville)
 - Module parameter refactoring and variable name clash fix (Michal)
 - Execlist refactoring, incomplete request unwinding on reset (Chris)
 - GuC scheduling improvements (Michal)
 - OA updates (Lionel)
 - Coffeelake out of alpha support (Rodrigo)
 - seqno fixes (Chris)
 - Execlist refactoring (Mika)
 - DP and DP MST cleanups (Dhinakaran)
 - Cannonlake slice/sublice config (Ben)
 - Numerous fixes all around (Everyone)
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Merge tag 'drm-intel-next-2017-09-29' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

2nd batch of v4.15 features:

- lib/scatterlist updates, use for userptr allocations (Tvrtko)
- Fixed point wrapper cleanup (Mahesh)
- Gen9+ transition watermarks, watermark optimization and fixes (Mahesh)
- Display IPC (Isochronous Priority Control) support (Mahesh)
- GEM workaround fixes (Oscar)
- GVT: PCI config sanitize series (Changbin)
- GVT: Workload submission error handling series (Fred)
- PSR fixes and refactoring (Rodrigo)
- HWSP based optimizations (Chris)
- Private PAT management (Zhi)
- IRQ handling fixes and refactoring (Ville)
- Module parameter refactoring and variable name clash fix (Michal)
- Execlist refactoring, incomplete request unwinding on reset (Chris)
- GuC scheduling improvements (Michal)
- OA updates (Lionel)
- Coffeelake out of alpha support (Rodrigo)
- seqno fixes (Chris)
- Execlist refactoring (Mika)
- DP and DP MST cleanups (Dhinakaran)
- Cannonlake slice/sublice config (Ben)
- Numerous fixes all around (Everyone)

* tag 'drm-intel-next-2017-09-29' of git://anongit.freedesktop.org/drm/drm-intel: (168 commits)
  drm/i915: Update DRIVER_DATE to 20170929
  drm/i915: Use memset64() to prefill the GTT page
  drm/i915: Also discard second CRC on gen8+ platforms.
  drm/i915/psr: Set frames before SU entry for psr2
  drm/dp: Add defines for latency in sink
  drm/i915: Allow optimized platform checks
  drm/i915: Avoid using dev_priv->info.gen directly.
  i915: Use %pS printk format for direct addresses
  drm/i915/execlists: Notify context-out for lost requests
  drm/i915/cnl: Add support slice/subslice/eu configs
  drm/i915: Compact device info access by a small re-ordering
  drm/i915: Add IS_PLATFORM macro
  drm/i915/selftests: Try to recover from a wedged GPU during reset tests
  drm/i915/huc: Reorganize HuC authentication
  drm/i915: Fix default values of some modparams
  drm/i915: Extend I915_PARAMS_FOR_EACH with default member value
  drm/i915: Make I915_PARAMS_FOR_EACH macro more flexible
  drm/i915: Enable scanline read based on frame timestamps
  drm/i915/execlists: Microoptimise execlists_cancel_port_request()
  drm/i915: Don't rmw PIPESTAT enable bits
  ...
2017-10-12 10:20:03 +10:00
Keith Packard
418da17214 drm: Pass struct drm_file * to __drm_mode_object_find [v2]
This will allow __drm_mode_object_file to be extended to perform
access control checks based on the file in use.

v2: Also fix up vboxvideo driver in staging

[airlied: merging early as this is an API change]

Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2017-10-12 10:03:04 +10:00
Jani Nikula
cccf4e3fe3 drm/dp: WARN about invalid/unknown link rates and bw codes
Falling back to the lowest value is likely the only thing we can do, but
doing it silently seems like a bad thing to do. Catch it early and make
loud noises.

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Thierry Reding <treding@nvidia.com>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171009092959.29021-1-jani.nikula@intel.com
2017-10-11 18:41:44 +03:00
Daniel Vetter
7c0f24a4c4 regmap: Add field polling macro
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Merge tag 'regmap-poll-field' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap into drm-misc-next

regmap: Add field polling macro

Requested by Maxime Ripard to make sun4i compile again (next time
the other way round is better).

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20171004104732.jkps4ufekfizcrkz@sirena.co.uk
2017-10-11 13:22:51 +02:00
Aishwarya Pant
0c17151aaa drm/msm/mdp5: remove less than 0 comparison for unsigned value
pipe is an unsigned int and less than zero comparison for unsigned
values is always false.

Detected using the following cocci script:

@@
unsigned int i;
@@
* i < 0

Signed-off-by: Aishwarya Pant <aishpant@gmail.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20171010184207.iv3dinrtwvbv7fei@aishwarya
2017-10-11 13:17:52 +02:00
Maciej Purski
e25f1f7c94 drm/bridge/sii8620: add remote control support
MHL specification defines Remote Control Protocol(RCP) to
send input events between MHL devices.
The driver now recognizes RCP messages and reacts to them
by reporting key events to input subsystem, allowing
a user to control a device using TV remote control.

Signed-off-by: Maciej Purski <m.purski@samsung.com>
Acked-by: Sean Young <sean@mess.org>
Acked-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1503565087-19730-1-git-send-email-m.purski@samsung.com
2017-10-11 13:14:25 +02:00
Chen-Yu Tsai
da184deeb8 drm/sun4i: hdmi: Add support for A31's HDMI controller
The HDMI controller found in the A31 SoCs is slightly different
from the one already supported, which is found in the A10s:

  - Need different initial values for the PLL related registers

  - Different behavior of the DDC and TMDS clocks

  - Different register layout for the DDC portion

  - Separate DDC parent clock

This patch adds support for it.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171010032008.682-10-wens@csie.org
2017-10-11 09:53:49 +02:00
Chen-Yu Tsai
c4a9aec3df drm/sun4i: hdmi: Add A31 specific DDC register definitions
The DDC block for the HDMI controller is different on the A31.

This patch adds the register definitions.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171010032008.682-9-wens@csie.org
2017-10-11 09:53:41 +02:00
Chen-Yu Tsai
939d749ad6 drm/sun4i: hdmi: Add support for controller hardware variants
The HDMI controller found in earlier Allwinner SoCs have slight
differences between the A10, A10s, and the A31:

  - Need different initial values for the PLL related registers

  - Different behavior of the DDC and TMDS clocks

  - Different register layout for the DDC portion

  - Separate DDC parent clock on the A31

  - Explicit reset control

For the A31, the HDMI TMDS clock has a different value offset for
the divider. The HDMI DDC block is different from the one in the
other SoCs. As far as the DDC clock goes, it has no pre-divider,
as it is clocked from a slower parent clock, not the TMDS clock.
The divider offset from the register value is different. And the
clock control register is at a different offset.

A new variant data structure is created to store pointers to the
above functions, structures, and the different initial values.
Another flag notates whether there is a separate DDC parent clock.
If not, the TMDS clock is passed to the DDC clock create function,
as before.

Regmap fields are used to deal with the different register layout
of the DDC block.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171010032008.682-8-wens@csie.org
2017-10-11 09:53:33 +02:00
Chen-Yu Tsai
68a48afa65 dt-bindings: display: sun4i: Add binding for A31 HDMI controller
The HDMI controller in the A31 SoC is slightly different from the
earlier version. In addition to the TMDS clock and DDC controls,
this version now takes a second DDC clock input.

Add a compatible string for it, and add the DDC clock input to the
list of clocks required.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171010032008.682-7-wens@csie.org
2017-10-11 09:53:25 +02:00
Chen-Yu Tsai
cc67ae90be drm/sun4i: hdmi: Allow using second PLL as TMDS clk parent
On SoCs with two display pipelines, it is possible that the two
pipelines are active at the same time, with potentially incompatible
dot clocks.

Let the HDMI encoder's TMDS clock go through all of its parents when
calculating possible clock rates. This allows usage of the second video
PLL as its parent.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171010032008.682-6-wens@csie.org
2017-10-11 09:53:13 +02:00