Commit graph

175 commits

Author SHA1 Message Date
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
Lespiau, Damien
d4e4a31da3 drm: Don't export drm_find_cea_extension() any more
This function is only used inside drm_edid.c.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dave Airlie <airlied@gmail.com>
2013-08-30 08:39:53 +10:00
Lespiau, Damien
a03eb8388d drm: Remove 2 unused defines
These were introduced in the very first DRM commit:

  commit f453ba0460
  Author: Dave Airlie <airlied@redhat.com>
  Date:   Fri Nov 7 14:05:41 2008 -0800

      DRM: add mode setting support

      Add mode setting support to the DRM layer.

But are unused.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-08-21 12:47:36 +10:00
Lespiau, Damien
86f422d5be drm: Make drm_mode_remove() static
It's only used in drm_crtc.c.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-08-21 12:47:29 +10:00
Lespiau, Damien
67587e8689 drm: Remove drm_mode_list_concat()
The last user was removed in

  commit 575dc34ee0
  Author: Dave Airlie <airlied@redhat.com>
  Date:   Mon Sep 7 18:43:26 2009 +1000

      drm/kms: remove old std mode fallback code.

      The new code adds modes in the helper, which makes more sense
      I disliked the non-driver code adding modes.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-08-21 12:47:24 +10:00
Lespiau, Damien
ddecb10cf4 drm: Remove drm_mode_create_dithering_property()
This was last used by nouveau, replaced by a driver-specific property
in:

  commit de69185573
  Author: Ben Skeggs <bskeggs@redhat.com>
  Date:   Mon Oct 17 12:23:41 2011 +1000

      drm/nouveau: improve dithering properties, and implement proper auto mode

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-08-21 12:47:19 +10:00
Lespiau, Damien
f51607ac8d drm: Remove stale prototypes
A few prototypes have been left in the headers, their function friends
long gone.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-08-21 12:47:13 +10:00
Ilia Mirkin
b21e3afe23 drm: use ida to allocate connector ids
This makes it so that reloading a module does not cause all the
connector ids to change, which are user-visible and sometimes used
for configuration.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-08-19 10:40:31 +10:00
Stéphane Marchesin
b17df86ece drm: Remove drm_mode_validate_clocks
This function is unused.

Signed-off-by: Stéphane Marchesin <marcheu@chromium.org>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-08-19 10:30:11 +10:00
Dave Airlie
d482e5fa29 Revert "drm: kms_helper: don't lose hotplug event"
This reverts commit 160954b7bc.

This was rearming the workqueue with a 0 timeout, causing
a WARN_ON, and possible loop.

Daniel writes:
"I've looked a bit into this and I think we need to have a separate
work struct for recovering these lost hotplug events since the
continuous self-rearming case is a real risk (e.g. if a connector
flip-flops all the time). At least I don't see a sane way to block out
re-arming with the current code in a simple way. So reverting the
offender seems like the right thing and I'll go back to the drawing
board for 3.12."

Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-06-28 20:31:34 +10:00
Dave Airlie
4c813d4d75 drm: add hotspot support for cursors.
So it looks like for virtual hw cursors on QXL we need to inform
the "hw" device what the cursor hotspot parameters are. This
makes sense if you think the host has to draw the cursor and interpret
clicks from it. However the current modesetting interface doesn't support
passing the hotspot information from userspace.

This implements a new cursor ioctl, that takes the hotspot info as well,
userspace can try calling the new interface and if it gets -ENOSYS it means
its on an older kernel and can just fallback.

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-06-28 09:13:39 +10:00
Daniel Vetter
160954b7bc drm: kms_helper: don't lose hotplug event
There's a race window (small for hpd, 10s large for polled outputs)
where userspace could sneak in with an unrelated connnector probe
ioctl call and eat the hotplug event (since neither the hpd nor the
poll code see a state change).

To avoid this, check whether the connector state changes in all other
->detect calls (in the current helper code that's only probe_single)
and if that's the case, fire off a hotplug event. Note that we can't
directly call the hotplug event handler, since that expects that no
locks are held (due to reentrancy with the fb code to update the kms
console).

Also, this requires that drivers using the probe_single helper
function set up the poll work. All current drivers do that already,
and with the reworked hpd handling there'll be no downside to
unconditionally setting up the poll work any more.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-06-27 20:34:16 +10:00
Daniel Vetter
5cef29aa52 drm: fix fb leak in setcrtc
Drivers are allowed (actually have to) disable unrelated crtcs in
their ->set_config callback (when we steal all the connectors from
that crtc). If they do that they'll clear crtc->fb to NULL.

Which results in a refcount leak, since the drm core is keeping track
of that reference.

To fix this track the old fb of all crtcs and adjust references for
all of them. Of course, since we only hold an additional reference for
the fb for the current crtc we need to increase refcounts before we
drop the old one.

This approach has the benefit that it inches us a bit closer to an
atomic modeset world, where we want to update the config of all crtcs
in one step.

This regression has been introduce in the framebuffer refcount
conversion, specifically in

commit b0d1232589
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Tue Dec 11 01:07:12 2012 +0100

    drm: refcounting for crtc framebuffers

Reported-by: Russell King <linux@arm.linux.org.uk>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-06-25 13:04:11 +10:00
Ville Syrjälä
778ad903f9 drm: Remove some unused stuff from drm_plane
There's a bunch of unused members inside drm_plane, bloating the size of
the structure needlessly. Eliminate them.

v2: Remove all of it from kernel-doc too

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@gmail.com>
2013-06-17 19:42:46 +10:00
Ville Syrjälä
9125e61868 drm: Add drm_plane_force_disable()
drm_plane_force_disable() will forcibly disable the plane even if user
had previously requested the plane to be enabled.

This can be used to force planes to be off when restoring the fbdev
mode.

The code was simply pulled from drm_framebuffer_remove(), which now
calls the new function as well.

v2: Check plane->fb in drm_plane_force_disable(), drop bogus comment
    about disabling crtc

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@gmail.com>
2013-06-17 18:32:54 +10:00
Ville Syrjälä
d20d317480 drm: Constify the pretty-print functions
The structures and strings involved with various pretty-print functions
aren't meant to be modified, so make them all const. The exception is
drm_connector_enum_list which does get modified in drm_connector_init().

While at it move the drm_get_connector_status_name() prototype from
drmP.h to drm_crtc.h where it belongs.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-06-11 08:13:56 +10:00
Ville Syrjälä
6ba6d03e69 drm: Print pretty names for pixel formats
Rather than just printing the pixel format as a hex number, decode the
fourcc into human readable form, and also decode the LE vs. BE flag.

Keep printing the raw hex number too in case it contains non-printable
characters.

Some examples what the new drm_get_format_name() produces:
DRM_FORMAT_XRGB8888: "XR24 little-endian (0x34325258)"
DRM_FORMAT_YUYV: "YUYV little-endian (0x56595559)"
DRM_FORMAT_RGB565|DRM_FORMAT_BIG_ENDIAN: "RG16 big-endian (0xb6314752)"
Unprintable characters: "D??? big-endian (0xff7f0244)"

v2: Fix patch author

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-06-11 08:13:54 +10:00
Ville Syrjälä
c55b6b3da2 drm: Kill user_modes list and the associated ioctls
There is no way to use modes added to the user_modes list. We never
look at the contents of said list in the kernel, and the only operations
userspace can do are attach and detach. So the only "benefit" of this
interface is wasting kernel memory.

Fortunately it seems no real user space application ever used these
ioctls. So just kill them.

Also remove the prototypes for the non-existing drm_mode_addmode_ioctl()
and drm_mode_rmmode_ioctl() functions.

v2: Use drm_noop instead of completely removing the ioctls

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-04-30 10:03:07 +10:00
Ville Syrjälä
ea9cbb063c drm: Silence some sparse warnings
drivers/gpu/drm/drm_pci.c:155:5: warning: symbol 'drm_pci_set_busid' was not declared. Should it be static?
drivers/gpu/drm/drm_pci.c:197:5: warning: symbol 'drm_pci_set_unique' was not declared. Should it be static?
drivers/gpu/drm/drm_pci.c:269:5: warning: symbol 'drm_pci_agp_init' was not declared. Should it be static?

drivers/gpu/drm/drm_crtc.c:181:1: warning: symbol 'drm_get_dirty_info_name' was not declared. Should it be static?
drivers/gpu/drm/drm_crtc.c:1123:5: warning: symbol 'drm_mode_group_init' was not declared. Should it be static?

drivers/gpu/drm/drm_modes.c:918:6: warning: symbol 'drm_mode_validate_clocks' was not declared. Should it be static?

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-04-30 10:02:25 +10:00
Ville Syrjälä
8cc3f23caf drm: Add drm_mode_equal_no_clocks()
drm_mode_equal_no_clocks() is like drm_mode_equal() except it doesn't
compare the clock or vrefresh values. drm_mode_equal() is now
implemented by first doing the clock checks, and then calling
drm_mode_equal_no_clocks().

v2: Add missing EXPORT_SYMBOL()

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-04-26 10:25:09 +10:00
Ville Syrjälä
67af116e4a drm: Remove explicit vrefresh initialization from DRM_MODE()
No need to zero initialize .vrefresh in DRM_MODE() since it's using
desgignated initializers.

This will also avoid some duplicate initialization warnings later.

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-04-26 10:25:06 +10:00
Christopher Harvey
715f59cc23 drm: Misc comment cleanup
Signed-off-by: Christopher Harvey <charvey@matrox.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-04-12 14:07:20 +10:00
Christopher Harvey
13bcf01b33 drm: Documentation typo fixes
Signed-off-by: Christopher Harvey <charvey@matrox.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-03-08 08:32:23 +10:00
Thierry Reding
595887eb90 drm: Add some missing forward declarations
The drm_file and drm_clip_rect structures are used throughout the file
but they are never declared nor pulled in through an include. Add
forward declarations to make them available.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2013-02-22 08:20:03 +01:00
Thierry Reding
18316c8c39 drm: Remove duplicate drm_mode_cea_vic()
The same function had already been merged with a different name. Remove
the duplicate one but reuse some of its kerneldoc fragments for the
existing implementation.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2013-02-22 08:19:53 +01:00
Daniel Vetter
6aed8ec3f7 drm: review locking for drm_fb_helper_restore_fbdev_mode
... it's required. Fix up exynos and the cma helper, and add a
corresponding WARN_ON to drm_fb_helper_restore_fbdev_mode.

Note that tegra calls the fbdev cma helper restore function also from
it's driver-load callback. Which is a bit against current practice,
since usually the call is only from ->lastclose, and initial setup is
done by drm_fb_helper_initial_config.

Also add the relevant drm DocBook entry.

v2: Add promised WARN to restore_fbdev_mode.

Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-02-14 00:07:50 +01:00