Commit graph

200 commits

Author SHA1 Message Date
Thomas Wood 34ea3d3863 drm: add register and unregister functions for connectors
Introduce generic functions to register and unregister connectors. This
provides a common place to add and remove associated user space
interfaces.

Signed-off-by: Thomas Wood <thomas.wood@intel.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-06-19 08:55:28 +02:00
Mario Kleiner 5d02626d31 drm/edid: Store all supported hdmi deep color modes in drm_display_info
HDMI deep color setup must know which modes are supported if
it needs to degrade gracefully, as only 12 bpc / dc_36 is
guaranteed, but 10 bpc / dc_30 is optional. The maximum bpc
is not sufficient for this.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2014-06-09 22:06:49 -04:00
Rob Clark 51fd371bba drm: convert crtc and connection_mutex to ww_mutex (v5)
For atomic, it will be quite necessary to not need to care so much
about locking order.  And 'state' gives us a convenient place to stash a
ww_ctx for any sort of update that needs to grab multiple crtc locks.

Because we will want to eventually make locking even more fine grained
(giving locks to planes, connectors, etc), split out drm_modeset_lock
and drm_modeset_acquire_ctx to track acquired locks.

Atomic will use this to keep track of which locks have been acquired
in a transaction.

v1: original
v2: remove a few things not needed until atomic, for now
v3: update for v3 of connection_mutex patch..
v4: squash in docbook
v5: doc tweaks/fixes

Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-06-05 09:54:33 +10:00
Daniel Vetter 6e9f798d91 drm: Split connection_mutex out of mode_config.mutex (v3)
After the split-out of crtc locks from the big mode_config.mutex
there's still two major areas it protects:
- Various connector probe states, like connector->status, EDID
  properties, probed mode lists and similar information.
- The links from connector->encoder and encoder->crtc and other
  modeset-relevant connector state (e.g. properties which control the
  panel fitter).

The later is used by modeset operations. But they don't really care
about the former since it's allowed to e.g. enable a disconnected VGA
output or with a mode not in the probed list.

Thus far this hasn't been a problem, but for the atomic modeset
conversion Rob Clark needs to convert all modeset relevant locks into
w/w locks. This is required because the order of acquisition is
determined by how userspace supplies the atomic modeset data. This has
run into troubles in the detect path since the i915 load detect code
needs _both_ protections offered by the mode_config.mutex: It updates
probe state and it needs to change the modeset configuration to enable
the temporary load detect pipe.

The big deal here is that for the probe/detect users of this lock a
plain mutex fits best, but for atomic modesets we really want a w/w
mutex. To fix this lets split out a new connection_mutex lock for the
modeset relevant parts.

For simplicity I've decided to only add one additional lock for all
connector/encoder links and modeset configuration states. We have
piles of different modeset objects in addition to those (like bridges
or panels), so adding per-object locks would be much more effort.

Also, we're guaranteed (at least for now) to do a full modeset if we
need to acquire this lock. Which means that fine-grained locking is
fairly irrelevant compared to the amount of time the full modeset will
take.

I've done a full audit, and there's just a few things that justify
special focus:
- Locking in drm_sysfs.c is almost completely absent. We should
  sprinkle mode_config.connection_mutex over this file a bit, but
  since it already lacks mode_config.mutex this patch wont make the
  situation any worse. This is material for a follow-up patch.

- omap has a omap_framebuffer_flush function which walks the
  connector->encoder->crtc links and is called from many contexts.
  Some look like they don't acquire mode_config.mutex, so this is
  already racy. Again fixing this is material for a separate patch.

- The radeon hot_plug function to retrain DP links looks at
  connector->dpms. Currently this happens without any locking, so is
  already racy. I think radeon_hotplug_work_func should gain
  mutex_lock/unlock calls for the mode_config.connection_mutex.

- Same applies to i915's intel_dp_hot_plug. But again, this is already
  racy.

- i915 load_detect code needs to acquire this lock. Which means the
  w/w dance due to Rob's work will be nicely contained to _just_ this
  function.

I've added fixme comments everywhere where it looks suspicious but in
the sysfs code. After a quick irc discussion with Dave Airlie it
sounds like the lack of locking in there is due to sysfs cleanup fun
at module unload.

v1: original (only compile tested)

v2: missing mutex_init(), etc (from Rob Clark)

v3: i915 needs more care in the conversion:
- Protect the edp pp logic with the connection_mutex.
- Use connection_mutex in the backlight code due to
  get_pipe_from_connector.
- Use drm_modeset_lock_all in suspend/resume paths.
- Update lock checks in the overlay code.

Cc: Alex Deucher <alexdeucher@gmail.com>
Cc: Rob Clark <robdclark@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Rob Clark <robdclark@gmail.com>
2014-06-04 13:25:21 +10:00
Rob Clark ebc44cf386 drm: add signed-range property type
Like range, but values are signed.

Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
2014-06-04 13:23:11 +10:00
Rob Clark 98f75de40e drm: add object property type
An object property is an id (idr) for a drm mode object.  This
will allow a property to be used set/get a framebuffer, CRTC, etc.

Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-06-04 13:23:03 +10:00
Rob Clark 5ea22f24d7 drm: add extended property types
If we continue to use bitmask for type, we will quickly run out of room
to add new types.  Split this up so existing part of bitmask range
continues to function as before, but reserve a chunk of the remaining
space for an integer type-id.  Wrap this all up in some type-check
helpers to keep the backwards-compat uglyness contained.

Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-06-04 13:22:53 +10:00
Rob Clark a2b34e226a drm: helpers to find mode objects
Add a few more useful helpers to find mode objects.

Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-06-04 13:22:44 +10:00
Jani Nikula d5ab2b430b drm: drop drm_get_connector_name() and drm_get_encoder_name()
No longer used or needed as the structs have a name field.

Acked-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-06-04 13:18:44 +10:00
Jani Nikula e5748946e9 drm: store encoder name in encoder struct
This makes drm_get_encoder_name() thread safe.

Reference: http://lkml.kernel.org/r/645ee6e22cad47d38a2b35c21c8d5fe3@DC1-MBX-01\
.ptsecurity.ru
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-05-30 11:58:45 +10:00
Jani Nikula 2abdd3137e drm: store connector name in connector struct (v2)
This makes drm_get_connector_name() thread safe.

[airlied: fix to build.]

Reference: http://lkml.kernel.org/r/645ee6e22cad47d38a2b35c21c8d5fe3@DC1-MBX-01.ptsecurity.ru
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-05-30 11:58:41 +10:00
Dave Airlie 425a9a3ad1 Merge tag 'topic/core-stuff-2014-05-05' of git://anongit.freedesktop.org/drm-intel into drm-next
Update pull request with drm core patches. Mostly some polish for the
primary plane stuff and a pile of patches all over from Thierry. Has
survived a few days in drm-intel-nightly without causing ill.

I've frobbed my scripts a bit to also tag my topic branches so that you
have something stable to pull - I've accidentally pushed a bunch more
patches onto this branch before you've taken the old pull request.

* tag 'topic/core-stuff-2014-05-05' of git://anongit.freedesktop.org/drm-intel:
  drm: Make drm_crtc_helper_disable() return void
  drm: Fix indentation of closing brace
  drm/dp: Fix typo in comment
  drm: Fixup flip-work kerneldoc
  drm/fb: Fix typos
  drm/edid: Cleanup kerneldoc
  drm/edid: Drop revision argument for drm_mode_std()
  drm: Try to acquire modeset lock on panic or sysrq
  drm: remove unused argument from drm_open_helper
  drm: Handle ->disable_plane failures correctly
  drm: Simplify fb refcounting rules around ->update_plane
  drm/crtc-helper: gc usless connector loop in disable_unused_functions
  drm/plane_helper: don't disable plane in destroy function
  drm/plane-helper: Fix primary plane scaling check
  drm: make mode_valid callback optional
  drm/edid: Fill PAR in AVI infoframe based on CEA mode list
2014-05-16 11:47:13 +10:00
Dave Airlie ad222799be drm: fix memory leak around mode_group (v2)
This mode group id_list was never being freed.

v2: take David's suggestion to free in minor_free.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-05-16 11:46:06 +10:00
Vandana Kannan 0967e6a507 drm/edid: Fill PAR in AVI infoframe based on CEA mode list
Populate PAR in infoframe structure. If there is a user setting for PAR, then
that value is set. Else, value is taken from CEA mode list if VIC is found.
Else, PAR is calculated from resolution. If none of these conditions are
satisfied, PAR is NONE as per initialization.

v2: Removed the part which sets PAR according to user input, based on
Daniel's review comments.

A separate patch will be submitted to create a property that would enable a
user space app to set aspect ratio for AVI infoframe.

v2: Removed the part which sets PAR according to user input, based on
Daniel's review comments.

v3: Removed calculation of PAR for non-CEA modes as per discussion with
Ville.

A separate patch will be submitted to create a property that would enable a
user space app to set aspect ratio for AVI infoframe.

Signed-off-by: Vandana Kannan <vandana.kannan@intel.com>
Cc: Jesse Barnes <jesse.barnes@intel.com>
Cc: Vijay Purushothaman <vijay.a.purushothaman@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: intel-gfx@lists.freedesktop.org
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[danvet: Squash in fixup for htmldocs.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-22 11:08:49 +02:00
Matt Roper 780f598471 drm: Remove unused drm_crtc->fb
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
2014-04-01 20:18:28 -04:00
Matt Roper e13161af80 drm: Add drm_crtc_init_with_planes() (v2)
Add a new drm_crtc_init_with_planes() to allow drivers to provide
specific primary and cursor planes at CRTC initialization.  The existing
drm_crtc_init() interface remains to avoid driver churn in existing
drivers; it will initialize the CRTC with a plane helper-created primary
plane and no cursor plane.

v2:
  - Move drm_crtc_init() to plane helper file so that nothing in the DRM
    core depends on helpers.  [suggested by Daniel Vetter]
  - Keep cursor parameter to drm_crtc_init_with_planes() a void* until
    we actually add cursor support.  [suggested by Daniel Vetter]

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
2014-04-01 20:18:27 -04:00
Rob Clark 9922ab5a7e drm: Add plane type property (v2)
Add a plane type property to allow userspace to distinguish plane types.

v2: Driver-specific churn eliminated now that drm_plane_init() and
    drm_universal_plane_init() were separated out in a previous patch.

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
2014-04-01 20:18:16 -04:00
Matt Roper dc415ff97d drm: Add drm_universal_plane_init()
Add a new plane initialization interface for universal plane support
that allows a specific plane type (primary, cursor, or overlay) to
be specified.

drm_plane_init() remains as a compatibility API to reduce churn in
existing drivers.  The 'bool priv' parameter has been changed to
'bool is_primary' under the assumption that all existing uses of
private planes were representing primary planes.

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
2014-04-01 20:18:08 -04:00
Matt Roper af93629d15 drm: Make drm_crtc_check_viewport non-static
This function will be used by the universal plane helpers and may also
be useful for individual drivers.

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
2014-04-01 20:11:28 -04:00
Matt Roper e27dde3e1c drm: Add support for multiple plane types (v2)
The DRM core currently only tracks "overlay"-style planes.  Start
refactoring the plane handling to allow other plane types (primary and
cursor) to also be placed on the DRM plane list.

v2: Add drm_for_each_legacy_plane() iterator to smooth transition
    of drivers with plane loops.

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
2014-04-01 19:13:07 -04:00
Daniel Vetter 5531000868 drm: extract drm_modes.h for drm_crtc.h functions
I want to also include kerneldoc from the header (for static inline
functions and structs), but fishing the right pieces out of a giant
header is a real pain. So split things out.

Note that it's not a really clean header with sane include orders, but
given's drm historical knack for giant headers detangling this is a
major task.

v2: Also extract struct drm_cmdline_mode.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-13 12:48:41 +01:00
Daniel Vetter 69fa5293bf drm/kms: rip out drm_mode_connector_detach_encoder
It's only used by imx, and that one gets it wrong - there's no need
to deteach the encoder before removing it.

And really, neither current drm modesetting code nor all the userspace
we have can handle dynamic changes in the set of possible encoders for
a given connector. So let's just remove this before someone starts
doing something really nasty with it.

As a plus, one less kerneldoc comment to write.

Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-13 12:48:38 +01:00
Dave Airlie 4d33f3aa1c Merge tag 'drm-intel-next-2014-02-14' of ssh://git.freedesktop.org/git/drm-intel into drm-next
- Fix the execbuf rebind performance regression due to topic/ppgtt (Chris).
- Fix up the connector cleanup ordering for sdvod i2c and dp aux devices (Imre).
- Try to preserve the firmware modeset config on driver load. And a bit of prep
  work for smooth takeover of the fb contents (Jesse).
- Prep cleanup for larger gtt address spaces on bdw (Ben).
- Improve our vblank_wait code to make hsw modesets faster (Paulo).
- Display debugfs file (Jesse).
- DRRS prep work from Vandana Kannan.
- pipestat interrupt handler to fix a few races around vblank/pageflip handling
  on byt (Imre).
- Improve display fuse handling for display-less SKUs (Damien).
- Drop locks while stalling for the gpu when serving pagefaults to improve
  interactivity (Chris).
- And as usual piles of other improvements and small fixes all over.

* tag 'drm-intel-next-2014-02-14' of ssh://git.freedesktop.org/git/drm-intel: (65 commits)
  drm/i915: fix NULL deref in the load detect code
  drm/i915: Only bind each object rather than for every execbuffer
  drm/i915: Directly return the vma from bind_to_vm
  drm/i915: Simplify i915_gem_object_ggtt_unpin
  drm/i915: Allow blocking in the PDE alloc when running low on gtt space
  drm/i915: Don't allocate context pages as mappable
  drm/i915: Handle set_cache_level errors in the status page setup
  drm/i915: Don't pin the status page as mappable
  drm/i915: Don't set PIN_MAPPABLE for legacy ringbuffers
  drm/i915: Handle set_cache_level errors in the pipe control scratch setup
  drm/i915: split PIN_GLOBAL out from PIN_MAPPABLE
  drm/i915: Consolidate binding parameters into flags
  drm/i915: sdvo: add i2c sysfs symlink to the connector's directory
  drm/i915: sdvo: fix error path in sdvo_connector_init
  drm/i915: dp: fix order of dp aux i2c device cleanup
  drm/i915: add unregister callback to connector
  drm/i915: don't reference null pointer at i915_sink_crc
  drm/i915/lvds: Remove dead code from failing case
  drm/i915: don't preserve inherited configs with nothing on v2
  drm/i915/bdw: Split up PPGTT cleanup
  ...
2014-03-04 07:51:41 +10:00
Alex Deucher 8716ed4e7b drm: add DRM_CAPs for cursor size
Some hardware may not support standard 64x64 cursors.  Add
a drm cap to query the cursor size from the kernel.  Some examples
include radeon CIK parts (128x128 cursors) and armada (32x64 or 64x32).
This allows things like device specific ddxes to remove asics specific
logic and also allows xf86-video-modesetting to work properly with hw
cursors on this hardware. Default to 64 if the driver doesn't specify
a size.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
2014-02-18 13:41:01 -05:00
Jesse Barnes ac1bb36c4e drm: expose subpixel order name routine v3
Just like we have for connector type etc.

v2: drop static array (Chris)
v3: add kdoc (Daniel)

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-02-12 18:53:04 +01:00
Dave Airlie 45ab1e0780 drm/tegra: Changes for v3.14-rc1 (update)
These patches fix some issues caused by the DRM panel support from the
 previous pull request and add two more panels (for the Toshiba AC100 as
 well as the Seaboard and Ventana).
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQIcBAABAgAGBQJS4TK6AAoJEN0jrNd/PrOhwXoP/i09xa9CKOnpy8Ewdmgi5gBt
 vnjzqjwmHzZRpNeWw2xvcqzv5kKgXkpPdMhNUjErlJTUC1S6uCf/Uj+ExppYYysW
 7uxNjPQQc6jgX+0342MabKITeZyTk9iEWPqTDtHDP5O2vXi4XSaQTMm9HpWGe1qZ
 1CTb0yJc1epXGJPutlqhJSZgKwzrs6Pm2Q/nsTdxpGPAoTQj9J0NebDaZwJmmFGi
 qNyfI4DVBp1sj8AgtUkQQn9x5oLDpdvHKLPHsAWgHnNTKqRxY8C0EL+S2TYGa812
 sx8jvZgjvBoPuwaOr4hcOx91OFdfOoKVap9D/corU+UjstF9lTd+PvAHzZMO5qte
 yQhWmYFn1gGr/I9b9K/mAB98s83W7lMmSs/7HtiawvLtogZ/t8xvSp94R7X8SGd1
 wYcw3NqzgDxrcpJjDOsLIw1Pa4PxXoChtV0SfiaEoVlGn5WSONS/8cKeNwbO6e9D
 gKkd/zvCMsYqHt7p8zDizcQKi4W+8zYiZySOfLohZzhf0qaoQnnD5yirfiIpljqA
 Ql40F4XP3OF3CliikcSwFhvrTUCLb08Ol0MV6FX1H1iMae0dgiFqtz7AihFTbKHZ
 PQeskMgEemxhIqKEsH0JcpV3+YxLRlWy/3I+OO7QczsL0xKD30FQ9Xhsu9EFx8gu
 jXVvMDldeefaVBuTdqCb
 =NfNj
 -----END PGP SIGNATURE-----

Merge tag 'drm/for-3.14-rc1-20140123' of git://anongit.freedesktop.org/tegra/linux into drm-next

drm/tegra: Changes for v3.14-rc1 (update)

These patches fix some issues caused by the DRM panel support from the
previous pull request and add two more panels (for the Toshiba AC100 as
well as the Seaboard and Ventana).

* tag 'drm/for-3.14-rc1-20140123' of git://anongit.freedesktop.org/tegra/linux:
  drm/tegra: Obtain head number from DT
  drm/panel: update EDID BLOB in panel_simple_get_modes()
  gpu: host1x: Remove unnecessary include
  drm/tegra: Use proper data type
  drm/tegra: Clarify how panel modes override others
  drm/tegra: Fix possible CRTC mask for RGB outputs
  drm/i915: Use drm_encoder_crtc_ok()
  drm: Move drm_encoder_crtc_ok() to core
  drm: provide a helper for the encoder possible_crtcs mask
  drm/tegra: Don't check resource with devm_ioremap_resource()
  drm/panel: Add support for Chunghwa CLAA101WA01A panel
  drm/panel: Add support for Samsung LTN101NT05 panel
2014-01-29 12:03:56 +10:00
Dave Airlie f5395ba35f Merge branch 'drm-vbl-timestamp' of git://gitorious.org/vsyrjala/linux into drm-next
Here's the vblank timestamp pull request you wanted.

I addressed the few bugs that Mario pointed out and added
the r-bs.

As it has been a while since I made the changes, I gave it a
quick spin on a few different i915 machines. Fortunately
everything still seems to be fine.

* 'drm-vbl-timestamp' of git://gitorious.org/vsyrjala/linux:
  drm/i915: Add a kludge for DSL incrementing too late and ISR not working
  drm/radeon: Move the early vblank IRQ fixup to radeon_get_crtc_scanoutpos()
  drm: Pass 'flags' from the caller to .get_scanout_position()
  drm: Fix vblank timestamping constants for interlaced modes
  drm/i915: Fix scanoutpos calculations for interlaced modes
  drm: Change {pixel,line,frame}dur_ns from s64 to int
  drm: Use crtc_clock in drm_calc_timestamping_constants()
  drm/radeon: Populate crtc_clock in radeon_atom_get_tv_timings()
  drm: Simplify the math in drm_calc_timestamping_constants()
  drm: Improve drm_calc_timestamping_constants() documentation
  drm/i915: Call drm_calc_timestamping_constants() earlier
  drm/i915: Kill hwmode save/restore
  drm: Pass the display mode to drm_calc_vbltimestamp_from_scanoutpos()
  drm: Pass the display mode to drm_calc_timestamping_constants()
2014-01-22 09:13:13 +10:00
Vandana Kannan 985e5dc207 drm/edid: Populate picture aspect ratio for CEA modes
Adding picture aspect ratio for CEA modes based on CEA-861D Table 3 or
CEA-861E Table 4. This is useful for filling up the detail in AVI
infoframe.

v2: Ville's review comments incorporated
Added picture aspect ratio as part of edid_cea_modes instead of DRM_MODE

Signed-off-by: Vandana Kannan <vandana.kannan@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-01-20 18:32:21 +01:00
Ville Syrjälä 3c184f6991 drm: Change {pixel,line,frame}dur_ns from s64 to int
Using s64 for the timestamping constants is wasteful. Signed 32bit
integers get us a range of over +-2 seconds. Presuming that no-one
wants to a vrefresh rate less than 0.5, we can switch to using int
for the timestamping constants. We save a few bytes in drm_crtc and
avoid a bunch of 64bit math.

Reviewed-by: mario.kleiner.de@gmail.com
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
2014-01-20 11:06:26 +02:00
Thierry Reding 3d88736870 drm: Move drm_encoder_crtc_ok() to core
Using the new drm_crtc_mask() function, drm_encoder_crtc_ok() can now be
written in a significantly shorter way, so it can be moved to a header
file and be made static inline.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-01-14 14:35:11 +01:00
Russell King db5f7a6e78 drm: provide a helper for the encoder possible_crtcs mask
The encoder possible_crtcs mask identifies which CRTCs can be bound to
a particular encoder.  Each bit from bit 0 defines an index in the list
of CRTCs held in the DRM mode_config crtc_list.  Rather than having
drivers trying to track the position of their CRTCs in the list, expose
the code which already exists for calculating the appropriate mask bit
for a CRTC.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
[treding@nvidia.com: add drm_crtc_index(), move to core]
Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-01-14 14:35:02 +01:00
Gerd Hoffmann 3cf70dafd7 drm: add drm_set_preferred_mode
New helper function to set the preferred video mode.  Can be called
after drm_add_modes_noedid if you don't want the largest supported
video mode be used by default.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-11-06 13:36:18 +10:00
Dave Airlie 5e4e3ba997 Merge branch 'drm-tda998x-3.12' of git://ftp.arm.linux.org.uk/~rmk/linux-cubox into drm-next
This adds support for the Armada 510 display subsystem found on the
Marvell Dove devices.  This IP is re-used across several different Marvell
SoCs with various tweaks, and this driver has been structured to allow
the other IPs to re-use the bulk of this code; further work in this area
is expected from interested parties.

This has been extensively tested on the SolidRun Cubox platform and
appears to work well there.

[airlied: update for api changes merged previous to this]
2013-10-22 09:50:08 +01:00
Dave Airlie 5bdebb183c drm/sysfs: sort out minor and connector device object lifetimes.
So drm was abusing device lifetimes, by having embedded device structures
in the minor and connector it meant that the lifetime of the internal drm
objects (drm_minor and drm_connector) were tied to the lifetime of the device
files in sysfs, so if something kept those files opened the current code
would kfree the objects and things would go downhill from there.

Now in reality there is no need for these lifetimes to be so intertwined,
especailly with hotplugging of devices where we wish to remove the sysfs
and userspace facing pieces before we can unwind the internal objects due
to open userspace files or mmaps, so split the objects out so the struct
device is no longer embedded and do what fbdev does and just allocate
and remove the sysfs inodes separately.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-10-22 09:37:40 +01:00
Russell King 96f60e37dc DRM: Armada: Add Armada DRM driver
This patch adds support for the pair of LCD controllers on the Marvell
Armada 510 SoCs.  This driver supports:
- multiple contiguous scanout buffers for video and graphics
- shm backed cacheable buffer objects for X pixmaps for Vivante GPU
  acceleration
- dual lcd0 and lcd1 crt operation
- video overlay on each LCD crt via DRM planes
- page flipping of the main scanout buffers
- DRM prime for buffer export/import

This driver is trivial to extend to other Armada SoCs.

Included in this commit is the core driver with no output support; output
support is platform and encoder driver dependent.

Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-10-12 10:13:40 +01:00
Daniel Vetter 967ad7f148 Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next
The conflict in intel_drv.h tripped me up a bit since a patch in dinq
moves all the functions around, but another one in drm-next removes a
single function. So I'ev figured backing this into a backmerge would
be good.

i915_dma.c is just adjacent lines changed, nothing nefarious there.

Conflicts:
	drivers/gpu/drm/i915/i915_dma.c
	drivers/gpu/drm/i915/intel_drv.h

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-10-10 12:44:43 +02:00
Damien Lespiau 5848ad409c drm: Reject stereo modes with an unknown layout
The kernel shouldn't accept invalid modes, just say No.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-10-01 07:45:45 +02:00
Damien Lespiau f7e121b764 drm: Code stereo layouts as an enum rather than a bit field
This allows us to use fewer bits in the mode structure, leaving room for
future work while allowing more stereo layouts types than we could have
ever dreamt of.

I also exposed the previously private DRM_MODE_FLAG_3D_MASK to set in
stone that we are using 5 bits for the stereo layout enum, reserving 32
values.

Even with that reservation, we gain 3 bits from the previous encoding.

The code adding the mandatory stereo modes needeed to be adapted as it was
relying or being able to or stereo layouts together.

Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-10-01 07:45:44 +02:00
Damien Lespiau 448cce25f4 drm: Implement timings adjustments for frame packing
When using the frame packing and a single big framebuffer, some hardware
requires that we do everything like if we were scanning out the big
buffer itself. Let's instrument drm_mode_set_crtcinfo() to be able to do
this adjustement if the driver is asking for it.

v2: Use crtc_vtotal and multiply the clock by 2 instead of
    reconstructing it (Ville Syrjälä)

Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-10-01 07:45:36 +02:00
Damien Lespiau bde2dcf701 drm: Introduce a crtc_clock for struct drm_display_mode
Just like the various timings, make it possible to have a clock field
what we can tweak before giving it to hardware.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-10-01 07:45:35 +02:00
Damien Lespiau 65427b1e94 drm: Remove synth_clock from struct drm_display_mode
This field is unused. Garbage collect it.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-10-01 07:45:34 +02:00
Damien Lespiau 99b314a0b3 drm: Remove clock_index from struct drm_display_mode
This field was only accessed by the nouveau driver, but never set. So
concluded we can rid of this one.

Acked-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-10-01 07:45:34 +02:00
Damien Lespiau 560a067a93 drm: Make exposing stereo modes a per-connector opt-in
Just like with interlaced or double scan modes, make stereo modes a
per-connector opt-in to give a chance to driver authors to make it work
before enabling it.

Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-10-01 07:45:33 +02:00
Damien Lespiau f2ecf2e3bc drm: Make drm_match_cea_mode() return the underlying 2D VIC for 3d modes
When scanning out a stereo mode, the AVI infoframe vic field has to be
the underlyng 2D VIC. Before that commit, we weren't matching the CEA
mode because of the extra stereo flag and then were setting the VIC
field in the AVI infoframe to 0.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-10-01 07:45:30 +02:00
Damien Lespiau 4aa17cf0d8 drm: Add HDMI stereo 3D flags to struct drm_mode_modeinfo
HDMI 1.4a defines a few layouts that we'd like to expose. This commits
add new modeinfo flags that can be used to list the supported stereo
layouts (when querying the list of modes) and to set a given stereo 3D
mode (when setting a mode).

v2: Add a drm_mode_is_stereo() helper

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-10-01 07:45:27 +02:00
Jani Nikula 51f8da5916 drm/edid: add drm_edid_duplicate
We have some code duplication related to EDID duplication. Add a helper.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-10-01 10:31:01 +10:00
Sean Paul 3b336ec4c5 drm: Add drm_bridge
This patch adds the notion of a drm_bridge. A bridge is a chained
device which hangs off an encoder. The drm driver using the bridge
should provide the association between encoder and bridge. Once a
bridge is associated with an encoder, it will participate in mode
set, and dpms (via the enable/disable hooks).

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-09-02 10:23:26 +10:00
Keith Packard 62f2104f3f drm: Advertise async page flip ability through GETCAP ioctl
Let applications know whether the kernel supports asynchronous page
flipping.

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Dave Airlie <airlied@gmail.com>
2013-08-30 09:25:13 +10:00
Keith Packard ed8d19756e drm: Pass page flip ioctl flags to driver
This lets drivers see the flags requested by the application

[airlied: fixup for rcar/imx/msm]

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Dave Airlie <airlied@gmail.com>
2013-08-30 09:24:54 +10:00
Damien Lespiau 807ac202f2 drm: Remove the dithering_mode_property field
Unfortunately, I haven't been thorough enough in:

  commit ddecb10cf4
  Author: Lespiau, Damien <damien.lespiau@intel.com>
  Date:   Tue Aug 20 00:53:04 2013 +0100

      drm: Remove drm_mode_create_dithering_property()

And forgot to remove the dithering_mode_property member of struct
drm_mode_config.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Dave Airlie <airlied@gmail.com>
2013-08-30 08:59:10 +10:00