Commit Graph

576 Commits

Author SHA1 Message Date
Sakari Ailus
92f1d09ca4 drm: Switch to %p4cc format modifier
Switch DRM drivers from drm_get_format_name() to %p4cc. This gets rid of a
large number of temporary variables at the same time.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20210216155723.17109-4-sakari.ailus@linux.intel.com
2021-02-17 12:52:59 +01:00
Daniel Vetter
e240cc7665 drm/imx: fixes and drm managed resources
- Reduce stack usage in ipu-di.
 - Fix imx-ldb for compile tests.
 - Make drm encoder control functions optional.
 - Add drm managed variants drmm_encoder_alloc(),
   drmm_simple_encoder_alloc(), drmm_universal_plane_alloc(), and
   drmm_crtc_alloc_with_planes() for drm_encoder_init(),
   drm_simple_encoder_init(), drm_universal_plane_init(), and
   drm_crtc_init_with_planes(), respectively.
 - Update imx-drm to use the new functions for drm managed resource
   allocation, moving initialization from bind to probe where possible.
 - Fix imx-tve clock provider leak.
 -----BEGIN PGP SIGNATURE-----
 
 iI0EABYIADUWIQRRO6F6WdpH1R0vGibVhaclGDdiwAUCX/M62RcccC56YWJlbEBw
 ZW5ndXRyb25peC5kZQAKCRDVhaclGDdiwPdlAP4/zZ401iFrj+ZiRTYFNGHaRrBI
 ldQ97lk2Ndzgp5tHzQD/dsAMFymw5+fYlp2xa25kB4LQJLzOC+KzlZwFKF5W4QM=
 =I3bV
 -----END PGP SIGNATURE-----

Merge tag 'imx-drm-next-2021-01-04' of git://git.pengutronix.de/git/pza/linux into drm-next

drm/imx: fixes and drm managed resources

- Reduce stack usage in ipu-di.
- Fix imx-ldb for compile tests.
- Make drm encoder control functions optional.
- Add drm managed variants drmm_encoder_alloc(),
  drmm_simple_encoder_alloc(), drmm_universal_plane_alloc(), and
  drmm_crtc_alloc_with_planes() for drm_encoder_init(),
  drm_simple_encoder_init(), drm_universal_plane_init(), and
  drm_crtc_init_with_planes(), respectively.
- Update imx-drm to use the new functions for drm managed resource
  allocation, moving initialization from bind to probe where possible.
- Fix imx-tve clock provider leak.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
[danvet: Fix conflict between doc changes by both Philipp and Simon
Ser, see 9999587b68 ("drm: rework description of primary and cursor
planes")]
From: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://patchwork.freedesktop.org/patch/msgid/c745fc1596898932c9454fd2979297b4242566a2.camel@pengutronix.de
2021-01-07 11:24:50 +01:00
Philipp Zabel
9dbb70fd66 drm/crtc: add drmm_crtc_alloc_with_planes()
Add an alternative to drm_crtc_init_with_planes() that allocates
and initializes a crtc and registers drm_crtc_cleanup() with
drmm_add_action_or_reset().

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2021-01-04 12:59:33 +01:00
Simon Ser
9999587b68
drm: rework description of primary and cursor planes
The previous wording could be understood by user-space evelopers as "a
primary/cursor plane is only compatible with a single CRTC" [1].

Reword the planes description to make it clear the DRM-internal
drm_crtc.primary and drm_crtc.cursor planes are for legacy uAPI.

[1]: https://github.com/swaywm/wlroots/pull/2333#discussion_r456788057

Signed-off-by: Simon Ser <contact@emersion.fr>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Pekka Paalanen <pekka.paalanen@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201211184634.74534-1-contact@emersion.fr
2020-12-15 16:46:31 +01:00
Simon Ser
a3d0d83479
drm: fix typos in plane and CRTC overviews
Fix one missing letter, and one duplicate struct field reference.

Signed-off-by: Simon Ser <contact@emersion.fr>
Cc: Daniel Vetter <daniel@ffwll.ch>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/3gESG7rm6lCex6qBZnl3YXTfefKZODEvJ4DX4RoI1cY@cp4-web-040.plabs.ch
2020-12-07 17:12:29 +01:00
Simon Ser
1187ffc41b
drm: fix kernel-doc warnings for SCALING_FILTER
This patch fixes the following kernel-doc warnings:

    /home/simon/src/linux/Documentation/gpu/drm-kms:466: ./drivers/gpu/drm/drm_crtc.c:236: WARNING: Unexpected indentation.
    /home/simon/src/linux/Documentation/gpu/drm-kms:466: ./drivers/gpu/drm/drm_crtc.c:237: WARNING: Block quote ends without a blank line; unexpected unindent.
    /home/simon/src/linux/Documentation/gpu/drm-kms:472: ./drivers/gpu/drm/drm_blend.c:203: WARNING: Unexpected indentation.
    /home/simon/src/linux/Documentation/gpu/drm-kms:472: ./drivers/gpu/drm/drm_blend.c:204: WARNING: Block quote ends without a blank line; unexpected unindent.

Signed-off-by: Simon Ser <contact@emersion.fr>
Fixes: 5c759eda9b ("drm: Introduce plane and CRTC scaling filter properties")
Cc: Pankaj Bharadiya <pankaj.laxminarayan.bharadiya@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Uma Shankar <uma.shankar@intel.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/zJEUxNx4GwiY4FnqlVsuXdAWuH624SQ9VfN54NeH5E@cp7-web-043.plabs.ch
2020-11-24 16:36:48 +01:00
Pankaj Bharadiya
5c759eda9b drm: Introduce plane and CRTC scaling filter properties
Introduce per-plane and per-CRTC scaling filter properties to allow
userspace to select the driver's default scaling filter or
Nearest-neighbor(NN) filter for upscaling operations on CRTC and
plane.

Drivers can set up this property for a plane by calling
drm_plane_create_scaling_filter() and for a CRTC by calling
drm_crtc_create_scaling_filter().

NN filter works by filling in the missing color values in the upscaled
image with that of the coordinate-mapped nearest source pixel value.

NN filter for integer multiple scaling can be particularly useful for
for pixel art games that rely on sharp, blocky images to deliver their
distinctive look.

changes since: v6:
* Move property doc to existing "Standard CRTC Properties" and
  "Plane Composition Properties" doc comments (Simon)
changes since v3:
* Refactor code, add new function for common code (Ville)
changes since v2:
* Create per-plane and per-CRTC scaling filter property (Ville)
changes since v1:
* None
changes since RFC:
* Add separate properties for plane and CRTC (Ville)

Link: https://github.com/xbmc/xbmc/pull/18194
Link: https://github.com/xbmc/xbmc/pull/18567
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Acked-by: Simon Ser <contact@emersion.fr>
Acked-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Pankaj Bharadiya <pankaj.laxminarayan.bharadiya@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201020161427.6941-2-pankaj.laxminarayan.bharadiya@intel.com
2020-10-21 12:19:54 +03:00
Maarten Lankhorst
2d9ad4cfaf Linux 5.9-rc2
-----BEGIN PGP SIGNATURE-----
 
 iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAl9C2tseHHRvcnZhbGRz
 QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiGgXoH/AuyLuMWwukVjVAx
 b2N2Ri0qFVyZWLky+uPqc4NkqJCbD/Rt2Kq8odLnJOrs2bXKpP5KrMl4sVqwSRr4
 CSkHkpo4oglmIxe5ptoWmWjrvHm/KNDZd2PY8cehii5eXG+aS7g3rIYjSFlXzP+1
 yndJ00H7CDOxHd/DngqfD+Sr7j76EM1iZE9316JR7TEu5o38I4Ipu6+3L3uFZVlf
 M90SmymY6hM7AJAyuOrd79ffXQry9KvWMUYyRkYyDK8y9taOSzfdfpppk8q5cVB1
 l4pcPNBiveRM3Yet7UAMb8FSz8OG0rPkkCsq8ALNU/UO91IDY832OUyLxXUpWlf6
 ZWRP2HA=
 =596f
 -----END PGP SIGNATURE-----

Merge tag 'v5.9-rc2' into drm-misc-fixes

Backmerge requested by Tomi for a fix to omap inconsistent
locking state issue, and because we need at least v5.9-rc2 now.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2020-08-25 11:00:02 +02:00
Daniel Vetter
77ef38574b drm/modeset-lock: Take the modeset BKL for legacy drivers
This fell off in the conversion in

commit 9bcaa3fe58
Author: Michal Orzel <michalorzel.eng@gmail.com>
Date:   Tue Apr 28 19:10:04 2020 +0200

    drm: Replace drm_modeset_lock/unlock_all with DRM_MODESET_LOCK_ALL_* helpers

but it's caught by the drm_warn_on_modeset_not_all_locked() that the
legacy modeset code uses. Since this is the bkl and it's unclear
what's all protected, play it safe and grab it again for legacy
drivers.

Unfortunately this means we need to sprinkle a few more #includes
around.

Also we need to add the drm_device as a parameter to the _END macro.

Finally remove the mute_lock() from setcrtc, since that's now done by
the macro.

Cc: Alex Deucher <alexdeucher@gmail.com>
References: https://gitlab.freedesktop.org/drm/amd/-/issues/1224
Fixes: 9bcaa3fe58 ("drm: Replace drm_modeset_lock/unlock_all with DRM_MODESET_LOCK_ALL_* helpers")
Cc: Michal Orzel <michalorzel.eng@gmail.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Cc: <stable@vger.kernel.org> # v5.8+
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200814093842.3048472-1-daniel.vetter@ffwll.ch
2020-08-17 13:41:50 -04:00
Suraj Upadhyay
948de84233 drm : Insert blank lines after declarations.
Resolve checkpatch issues for missing blank lines after declarations.
Issues found in multiple files with checkpatch.pl.

Signed-off-by: Suraj Upadhyay <usuraj35@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200702131749.GA25710@blackclown
2020-07-02 15:26:00 +02:00
Simon Ser
e954f77f63
drm: add docs for standard CRTC properties
This patch adds docs for the ACTIVE and MODE_ID CRTC properties.

Signed-off-by: Simon Ser <contact@emersion.fr>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Cc: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Cc: Michel Dänzer <michel@daenzer.net>
Cc: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/k52vYFBQ5ZO18TgZl3W8MgP6f4qu5Ncir7w-On8Dm0V2KTAcVkUoS7-IGPcvDJAXLsyJAUsD0QFJts3Dy0yWyHXVh85axrZkybh3MGGFhQc=@emersion.fr
2020-06-01 16:13:20 +02:00
Greg Kroah-Hartman
b792e64021 drm: no need to check return value of debugfs_create functions
When calling debugfs functions, there is no need to ever check the
return value.  The function can work or not, but the code logic should
never do something different based on this.

Because there is no need to check these functions, a number of local
functions can be made to return void to simplify things as nothing can
fail.

Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <maxime.ripard@bootlin.com>
Cc: Sean Paul <sean@poorly.run>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20190613133439.GA6715@kroah.com
2019-06-13 16:39:16 +02:00
Daniel Vetter
204f640da6 drm/lease: Make sure implicit planes are leased
If userspace doesn't enable universal planes, then we automatically
add the primary and cursor planes. But for universal userspace there's
no such check (and maybe we only want to give the lessee one plane,
maybe not even the primary one), hence we need to check for the
implied plane.

v2: don't forget setcrtc ioctl.

v3: Still allow disabling of the crtc in SETCRTC.

Cc: stable@vger.kernel.org
Cc: Keith Packard <keithp@keithp.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190228144910.26488-6-daniel.vetter@ffwll.ch
2019-04-24 11:30:32 +02:00
Daniel Vetter
c2d88e06bc drm: Move the legacy kms disable_all helper to crtc helpers
It's not a core function, and the matching atomic functions are also
not in the core. Plus the suspend/resume helper is also already there.

Needs a tiny bit of open-coding, but less midlayer beats that I think.

v2: Rebase onto ast (which gained a new user).

Cc: Sam Bobroff <sbobroff@linux.ibm.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Sean Paul <sean@poorly.run>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <maxime.ripard@bootlin.com>
Cc: Sean Paul <sean@poorly.run>
Cc: David Airlie <airlied@linux.ie>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: "David (ChunMing) Zhou" <David1.Zhou@amd.com>
Cc: Rex Zhu <Rex.Zhu@amd.com>
Cc: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Cc: Huang Rui <ray.huang@amd.com>
Cc: Shaoyun Liu <Shaoyun.Liu@amd.com>
Cc: Monk Liu <Monk.Liu@amd.com>
Cc: nouveau@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
Link: https://patchwork.freedesktop.org/patch/msgid/20181217194303.14397-4-daniel.vetter@ffwll.ch
2019-01-11 22:54:29 +01:00
Maxime Ripard
23d19ba06b
Merge drm/drm-next into drm-misc-next
drm-next has been forwarded to 5.0-rc1, and we need it to apply the damage
helper for dirtyfb series from Noralf Trønnes.

Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-01-11 16:32:10 +01:00
Daniel Vetter
1e9080ac21 drm: Unexport drm_crtc_force_disable
It's a legacy kms only thing, good to hide it better now that all
those old drivers use the legacy crtc helpers directly.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <maxime.ripard@bootlin.com>
Cc: Sean Paul <sean@poorly.run>
Cc: David Airlie <airlied@linux.ie>
Link: https://patchwork.freedesktop.org/patch/msgid/20181217194303.14397-3-daniel.vetter@ffwll.ch
2019-01-11 15:56:40 +01:00
Dave Airlie
e69aa5f9b9 Final changes to drm-misc-next for v4.21:
UAPI Changes:
 
 Core Changes:
 - Add dma_fence_get_stub to dma-buf, and use it in drm/syncobj.
 - Add and use DRM_MODESET_LOCK_BEGIN/END helpers.
 - Small fixes to drm_atomic_helper_resume(), drm_mode_setcrtc() and
   drm_atomic_helper_commit_duplicated_state()
 - Fix drm_atomic_state_helper.[c] extraction.
 
 Driver Changes:
 - Small fixes to tinydrm, vkms, meson, rcar-du, virtio, vkms,
   v3d, and pl111.
 - vc4: Allow scaling and YUV formats on cursor planes.
 - v3d: Enable use of the Texture Formatting Unit, and fix
   prime imports of buffers from other drivers.
 - Add support for the AUO G101EVN010 panel.
 - sun4i: Enable support for the H6 display engine.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEuXvWqAysSYEJGuVH/lWMcqZwE8MFAlwI7wUACgkQ/lWMcqZw
 E8O/3g/9GQvNpNthglt4kSXUn9bj2D/MzQsL4sEsKYcp9eM3XTMy6raybfBpMdtf
 U9y7G9EwQ8F01wd1m3d3HfBkKoy0WDTIsAjh06QUuSyyEivuQEoSxCKiI7t+Tatc
 gJaj2TKHF1RaDikcV+x2pqqv8ptH+IzF0A65v5SAn8U5PVYz17pD0jctYR8F434X
 o1xkjL5KS+vmfzu2keUCrWWtfAsPoyqcbEu5A3W+hhpKyQmS/8kVwr5J5LylvWqa
 xalXHRUgaUrOGOFuYrqWhIKjydqpr8QhIuJqacmHfmV/qvASUTeqTTnzartb+FuU
 d5E4p3bFaAjbAOHUEdlaLRA4oUK8/VA+WWaGKhPGreUE3TWn/thJJElAqoJhkbql
 bGelBBkNNzDbJhtwjR4hmFN7fQz0Y1LxuBXtjw7wfomJAd/xJ5fgxqT58OovZgZt
 f+hxxBTsdov5MOZ3XsB457b2MNmM+4kHM7urP3Z7mluEJ0ojmiokYMGJx0RDtLzP
 YoukpqEwCaMlS4rdvil1nUfYw61/PFRxoBwlmarV2A3m1DUDQ2YyUNHOgVLrlzXv
 RGdiTBvuvUZm6aSuzCVUiiiuQ0zwaFfBKdwXEA016irb34rdOoZ2b6w70GWi7QEl
 0tQy5ULBwuhy1Kk8QXsJxRZPnnHznGoREryNDDOC0RAr/WEhwGY=
 =t02J
 -----END PGP SIGNATURE-----

Merge tag 'drm-misc-next-2018-12-06' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

Final changes to drm-misc-next for v4.21:

UAPI Changes:

Core Changes:
- Add dma_fence_get_stub to dma-buf, and use it in drm/syncobj.
- Add and use DRM_MODESET_LOCK_BEGIN/END helpers.
- Small fixes to drm_atomic_helper_resume(), drm_mode_setcrtc() and
  drm_atomic_helper_commit_duplicated_state()
- Fix drm_atomic_state_helper.[c] extraction.

Driver Changes:
- Small fixes to tinydrm, vkms, meson, rcar-du, virtio, vkms,
  v3d, and pl111.
- vc4: Allow scaling and YUV formats on cursor planes.
- v3d: Enable use of the Texture Formatting Unit, and fix
  prime imports of buffers from other drivers.
- Add support for the AUO G101EVN010 panel.
- sun4i: Enable support for the H6 display engine.

Signed-off-by: Dave Airlie <airlied@redhat.com>
[airlied: added drm/v3d: fix broken build to the merge commit]
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/321be9d3-ab75-5f92-8193-e5113662edef@linux.intel.com
2018-12-07 11:23:05 +10:00
Sean Paul
b7ea04d299 drm: Add DRM_MODESET_LOCK_BEGIN/END helpers
This patch adds a couple of helpers to remove the boilerplate involved
in grabbing all of the modeset locks.

I've also converted the obvious cases in drm core to use the helpers.

The only remaining instance of drm_modeset_lock_all_ctx() is in
drm_framebuffer. It's complicated by the state clear that occurs on
deadlock. ATM, there's no way to inject code in the deadlock path with
the helpers, so it's unfit for conversion.

Changes in v2:
- Relocate ret argument to the end of the list (Daniel)
- Incorporate Daniel's doc suggestions (Daniel)

Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Reviewed-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20181129150423.239081-4-sean@poorly.run
2018-11-29 10:48:31 -05:00
Sean Paul
c232e9f41b drm: Move drm_mode_setcrtc() local re-init to failure path
Instead of always re-initializing the variables we need to clean up on
out, move the re-initialization into the branch that goes back to retry
label.

This is a lateral move right now, but will allow us to pull out the
modeset locking into common code. I kept this change separate to make
things easier to review.

Changes in v2:
- None

Reviewed-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20181129150423.239081-2-sean@poorly.run
2018-11-29 10:48:30 -05:00
Nicholas Kazlauskas
1398958cfd drm: Add vrr_enabled property to drm CRTC
This patch introduces the 'vrr_enabled' CRTC property to allow
dynamic control over variable refresh rate support for a CRTC.

This property should be treated like a content hint to the driver -
if the hardware or driver is not capable of driving variable refresh
timings then this is not considered an error.

Capability for variable refresh rate support should be determined
by querying the vrr_capable drm connector property.

It is worth noting that while the property is intended for atomic use
it isn't filtered from legacy userspace queries. This allows for Xorg
userspace drivers to implement support.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-11-28 15:55:34 -05:00
Linus Torvalds
53b3b6bbfd drm pull for 4.20-rc1
-----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJbz8FfAAoJEAx081l5xIa+t8AQAJ6KaMM7rYlRDzIr1Vuh0++2
 kFmfEQnSZnOWxO+zpyQpCJQr+/1aAHQ6+QzWq+/fX/bwH01H1Q4+z6t+4QoPqYlw
 rUYXZYRxnqGVPYx8hwNLmRbJcsXMVKly1SemBXIoabKkEtPNX5AZ4FXCR2WEbsV3
 /YLxsYQv2KMd8aoeC9Hupa07Jj9GfOtEo0a9B1hKmo+XiF9HqPadxaofqOpQ6MCh
 54itBgP7Kj4mwwr8KxG2JCNJagG5aG8q3yiEwaU5b0KzWya4o1wrOAJcBaEAIxpj
 JAgPde+f2L6w9dQbBBWeVFYKNn0jJqJdmbPs5Ek3i/NNFyx01Mn/3vlTZoRUqJN7
 TGXwOI/BWz1iTaHyFPqVH6RPQAoUUDeCwgHkXonogFxvQLpiFG+dRNqxue0XVUMX
 9tDSdZefWPoH3n9J/gDhwbV2Qbw/2n6yzCRYCb8HkqX1Y1JTmdYVgKvcnOwyYwsJ
 QzcVkWUJ31UAaZcTLCEW6SVqcUR0mso3LJAPSKp2NJiVLL8mSd/ViUTUbxRNkkXf
 H0abVGDjWAAZaT5uqNVqg4kV1Vc4Kj+/9QtspW4ktGezOz9DsctwJtfhTgOmT8Fx
 zlEwWmAbf1iJP9UgqI7r4+Nq24saqUYmIX0bowEasLIRO+l14Pf9mQJjgKRcMs/j
 SK4W5EreSFosKsxtQU4H
 =3yxi
 -----END PGP SIGNATURE-----

Merge tag 'drm-next-2018-10-24' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "This is going to rebuild more than drm as it adds a new helper to
  list.h for doing bulk updates. Seemed like a reasonable addition to
  me.

  Otherwise the usual merge window stuff lots of i915 and amdgpu, not so
  much nouveau, and piles of everything else.

  Core:
   - Adds a new list.h helper for doing bulk list updates for TTM.
   - Don't leak fb address in smem_start to userspace (comes with EXPORT
     workaround for people using mali out of tree hacks)
   - udmabuf device to turn memfd regions into dma-buf
   - Per-plane blend mode property
   - ref/unref replacements with get/put
   - fbdev conflicting framebuffers code cleaned up
   - host-endian format variants
   - panel orientation quirk for Acer One 10

  bridge:
   - TI SN65DSI86 chip support

  vkms:
   - GEM support.
   - Cursor support

  amdgpu:
   - Merge amdkfd and amdgpu into one module
   - CEC over DP AUX support
   - Picasso APU support + VCN dynamic powergating
   - Raven2 APU support
   - Vega20 enablement + kfd support
   - ACP powergating improvements
   - ABGR/XBGR display support
   - VCN jpeg support
   - xGMI support
   - DC i2c/aux cleanup
   - Ycbcr 4:2:0 support
   - GPUVM improvements
   - Powerplay and powerplay endian fixes
   - Display underflow fixes

  vmwgfx:
   - Move vmwgfx specific TTM code to vmwgfx
   - Split out vmwgfx buffer/resource validation code
   - Atomic operation rework

  bochs:
   - use more helpers
   - format/byteorder improvements

  qxl:
   - use more helpers

  i915:
   - GGTT coherency getparam
   - Turn off resource streamer API
   - More Icelake enablement + DMC firmware
   - Full PPGTT for Ivybridge, Haswell and Valleyview
   - DDB distribution based on resolution
   - Limited range DP display support

  nouveau:
   - CEC over DP AUX support
   - Initial HDMI 2.0 support

  virtio-gpu:
   - vmap support for PRIME objects

  tegra:
   - Initial Tegra194 support
   - DMA/IOMMU integration fixes

  msm:
   - a6xx perf improvements + clock prefix
   - GPU preemption optimisations
   - a6xx devfreq support
   - cursor support

  rockchip:
   - PX30 support
   - rgb output interface support

  mediatek:
   - HDMI output support on mt2701 and mt7623

  rcar-du:
   - Interlaced modes on Gen3
   - LVDS on R8A77980
   - D3 and E3 SoC support

  hisilicon:
   - misc fixes

  mxsfb:
   - runtime pm support

  sun4i:
   - R40 TCON support
   - Allwinner A64 support
   - R40 HDMI support

  omapdrm:
   - Driver rework changing display pipeline ordering to use common code
   - DMM memory barrier and irq fixes
   - Errata workarounds

  exynos:
   - out-bridge support for LVDS bridge driver
   - Samsung 16x16 tiled format support
   - Plane alpha and pixel blend mode support

  tilcdc:
   - suspend/resume update

  mali-dp:
   - misc updates"

* tag 'drm-next-2018-10-24' of git://anongit.freedesktop.org/drm/drm: (1382 commits)
  firmware/dmc/icl: Add missing MODULE_FIRMWARE() for Icelake.
  drm/i915/icl: Fix signal_levels
  drm/i915/icl: Fix DDI/TC port clk_off bits
  drm/i915/icl: create function to identify combophy port
  drm/i915/gen9+: Fix initial readout for Y tiled framebuffers
  drm/i915: Large page offsets for pread/pwrite
  drm/i915/selftests: Disable shrinker across mmap-exhaustion
  drm/i915/dp: Link train Fallback on eDP only if fallback link BW can fit panel's native mode
  drm/i915: Fix intel_dp_mst_best_encoder()
  drm/i915: Skip vcpi allocation for MSTB ports that are gone
  drm/i915: Don't unset intel_connector->mst_port
  drm/i915: Only reset seqno if actually idle
  drm/i915: Use the correct crtc when sanitizing plane mapping
  drm/i915: Restore vblank interrupts earlier
  drm/i915: Check fb stride against plane max stride
  drm/amdgpu/vcn:Fix uninitialized symbol error
  drm: panel-orientation-quirks: Add quirk for Acer One 10 (S1003)
  drm/amd/amdgpu: Fix debugfs error handling
  drm/amdgpu: Update gc_9_0 golden settings.
  drm/amd/powerplay: update PPtable with DC BTC and Tvr SocLimit fields
  ...
2018-10-28 17:49:53 -07:00
Tomi Valkeinen
064253c1c0 drm: fix use of freed memory in drm_mode_setcrtc
drm_mode_setcrtc() retries modesetting in case one of the functions it
calls returns -EDEADLK. connector_set, mode and fb are freed before
retrying, but they are not set to NULL. This can cause
drm_mode_setcrtc() to use those variables.

For example: On the first try __drm_mode_set_config_internal() returns
-EDEADLK. connector_set, mode and fb are freed. Next retry starts, and
drm_modeset_lock_all_ctx() returns -EDEADLK, and we jump to 'out'. The
code will happily try to release all three again.

This leads to crashes of different kinds, depending on the sequence the
EDEADLKs happen.

Fix this by setting the three variables to NULL at the start of the
retry loop.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20180917110054.4053-1-tomi.valkeinen@ti.com
2018-10-05 15:55:17 +03:00
Chris Wilson
69fdf4206a drm: Differentiate the lack of an interface from invalid parameter
If the ioctl is not supported on a particular piece of HW/driver
combination, report ENOTSUP (aka EOPNOTSUPP) so that it can be easily
distinguished from both the lack of the ioctl and from a regular invalid
parameter.

v2: Across all the kms ioctls we had a mixture of reporting EINVAL,
ENODEV and a few ENOTSUPP (most where EINVAL) for a failed
drm_core_check_feature(). Update everybody to report ENOTSUPP.

v3: ENOTSUPP is an internal errno! It's value (524) does not correspond
to a POSIX errno, the one we want is ENOTSUP. However,
uapi/asm-generic/errno.h doesn't include ENOTSUP but man errno says

	"ENOTSUP and EOPNOTSUPP have the same value on Linux,
	but according to POSIX.1 these error values should be
	distinct."

so use EOPNOTSUPP as its equivalent.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> #v2
Link: https://patchwork.freedesktop.org/patch/msgid/20180913192050.24812-1-chris@chris-wilson.co.uk
2018-09-14 17:29:47 +01:00
Daniel Vetter
e6120d6493 drm: drop drmP.h include from drm_crtc.c
This is starting to become easy!

v2: Compiles now, with drm/drm_util.h extracted.

v3: Fix up commit message (Sam Ravnborg)

Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180905135711.28370-4-daniel.vetter@ffwll.ch
2018-09-09 14:19:18 +02:00
Ville Syrjälä
69a8a1961c drm: Skip __drm_mode_set_config_internal() on atomic drivers
Everything (apart from the actual ->set_config() call)
__drm_mode_set_config_internal() does is now useless on
atomic drivers. So let's just skip all the foreplay.

v2: Use drm_drv_uses_atomic_modeset() (Daniel)

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20180705190010.19836-1-ville.syrjala@linux.intel.com
2018-07-13 17:58:19 +03:00
Daniel Vetter
99e227cb03 drm: Remove unecessary dma_fence_ops
dma_fence_default_wait is the default now, same for the trivial
enable_signaling implementation.

Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Gustavo Padovan <gustavo@padovan.org>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: David Airlie <airlied@linux.ie>
Link: https://patchwork.freedesktop.org/patch/msgid/20180503142603.28513-7-daniel.vetter@ffwll.ch
2018-07-03 13:13:22 +02:00
Ville Syrjälä
6a52193bd0 drm: Use drm_crtc_mask()
Use drm_crtc_mask() where appropriate.

Mostly performed with coccinelle:
@@
@@
- (1<<drm_crtc_index(
+ drm_crtc_mask(
  ...)
-  )

@@
@@
- 1<<drm_crtc_index(
+ drm_crtc_mask(
  ...)

@@
@@
- BIT(drm_crtc_index(
+ drm_crtc_mask(
  ...)
- )

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180626194716.12522-2-ville.syrjala@linux.intel.com
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-07-02 18:45:55 +03:00
Haneen Mohammed
ba1f665f16 drm: Add checks for atomic_[duplicate/destroy]_state with atomic drivers
This patch add checks for atomic_[duplicate/destroy]_state of
drm_[connector/crtc/plane]_funcs for atomic drivers in the relevant
drm_*_init functions since these callback are mandatory for atomic drivers.

Update the kerneldoc comments for those callbacks.

Signed-off-by: Haneen Mohammed <hamohammed.sa@gmail.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20180525012555.GA8448@haneen-vb
2018-06-18 09:20:51 +02:00
Ville Syrjälä
6ab0edf4e7 drm: Print bad user modes
Print out the modeline when we reject a bad user mode. Avoids having to
guess why it was rejected.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180611193403.16118-2-ville.syrjala@linux.intel.com
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
2018-06-15 23:31:07 +03:00
Ville Syrjälä
e00fb8564e drm: Stop updating plane->crtc/fb/old_fb on atomic drivers
Stop playing around with plane->crtc/fb/old_fb with atomic
drivers. Make life a lot simpler when we don't have to do the
magic old_fb vs. fb dance around plane updates. That way we
can't risk plane->fb getting out of sync with plane->state->fb
and we're less likely to leak any refcounts as well.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180525185045.29689-14-ville.syrjala@linux.intel.com
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
2018-06-11 20:22:44 +03:00
Ville Syrjälä
3ed70ecd86 drm: Add local 'plane' variable for tmp->primary
Clean up the ugly tmp->primary-> stuff in
__drm_mode_set_config_internal() with a local plane variable.

Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180405151400.11326-13-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2018-05-25 21:21:39 +03:00
Ankit Nautiyal
ace5bf0e25 drm: Handle aspect ratio info in legacy modeset path
If the user-space does not support aspect-ratio, and requests for a
modeset with mode having aspect ratio bits set, then the given
user-mode must be rejected. Secondly, while preparing a user-mode from
kernel mode, the aspect-ratio info must not be given, if aspect-ratio
is not supported by the user.

This patch:
1. rejects the modes with aspect-ratio info, during modeset, if the
   user does not support aspect ratio.
2. does not load the aspect-ratio info in user-mode structure, if
   aspect ratio is not supported.
3. adds helper functions for determining if aspect-ratio is expected
   in user-mode and for allowing/disallowing the aspect-ratio, if its
   not expected.

Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>

V3: Addressed review comments from Ville:
    Do not corrupt the current crtc state by updating aspect-ratio on
    the fly.
V4: rebase
V5: As suggested by Ville, rejected the modeset calls for modes with
    aspect ratio, if the user does not set aspect-ratio cap.
V6: Used the helper functions for determining if aspect-ratio is
    expected in the user-mode.
V7: rebase
V8: rebase
V9: rebase
V10: Modified the commit-message
V11: rebase
V12: Merged the patch for adding aspect-ratio helper functions
     with this patch.
V13: Minor modifications as suggested by Ville.
V14: Removed helper functions, as they were used only once in legacy
     modeset path, as suggested by Daniel Vetter.

Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1525777785-9740-8-git-send-email-ankit.k.nautiyal@intel.com
2018-05-11 09:05:18 +02:00
Daniel Vetter
51f170a544 Revert 190c462d5be19ba622a82f5fd0625087c870a1e6..bf3012ada1b2222e770de5c35c1bb16f73b3a01d"
I shouldn't have pushed this, CI was right - I failed to remove the
BUG_ON(!ops->wait);

Reported-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2018-05-03 12:38:39 +02:00
Daniel Vetter
95aee35fe1 drm: Remove unecessary dma_fence_ops
dma_fence_default_wait is the default now, same for the trivial
enable_signaling implementation.

Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Gustavo Padovan <gustavo@padovan.org>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: David Airlie <airlied@linux.ie>
Link: https://patchwork.freedesktop.org/patch/msgid/20180427061724.28497-8-daniel.vetter@ffwll.ch
2018-05-03 11:49:31 +02:00
Ville Syrjälä
a36c027db5 drm: Use plane->state->fb over plane->fb
Stop looking at plane->fb on atomic drivers. Use plane->state->fb
instead.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180322152313.6561-9-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2018-03-29 19:14:21 +03:00
Ville Syrjälä
bf2d5eb902 drm: Adjust whitespace for legibility
Add a bit of whitespace here and there to make the code look a bit
more structured.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180322152313.6561-7-ville.syrjala@linux.intel.com
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2018-03-29 19:14:21 +03:00
Ville Syrjälä
64c32b4903 drm: Add local 'plane' variable for primary/cursor planes
Make the code a bit more readable by storing the plane pointer in a
local variable rather than having to do crtc->{primary,cursor} all the
time.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180322152313.6561-6-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2018-03-29 19:14:21 +03:00
Ville Syrjälä
7e7de761af drm: Clear crtc->primary->crtc when disabling the crtc via setcrtc()
Keep the primary->crtc in sync with the state->crtc (also with
primary->fb and state->fb) when disabling the crtc (and thus also
the primary) via setcrtc().

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180322152313.6561-4-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2018-03-29 19:14:20 +03:00
Ville Syrjälä
23163a7d4b drm: Check that the plane supports the request format+modifier combo
Currently we only check that the plane supports the pixel format of the
fb we're about to feed to it. Extend it to check also the modifier, and
more specifically that the combination of the format and modifier is
supported.

Cc: dri-devel@lists.freedesktop.org
Cc: Ben Widawsky <ben@bwidawsk.net>
Cc: Jason Ekstrand <jason@jlekstrand.net>
Cc: Daniel Stone <daniels@collabora.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171222192231.17981-8-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2018-02-26 16:29:47 +02:00
Ville Syrjälä
75a655e0a2 drm/modes: Provide global mode_valid hook
Allow drivers to provide a device wide .mode_valid() hook in addition to
the already existing crtc/encoder/bridge/connector hooks. This can be
used to validate device/driver wide constraings without having to add
those to the other hooks. And since we call this hook also for user
modes later on in the modeset we don't have to worry about anything the
hook has already rejected.

I also have some further ideas for this hook. Eg. we could replace the
drm_mode_set_crtcinfo(HALVE_V) call in drm_mode_convert_umode()/etc.
with a driver specific variant via this hook. At least on i915 we would
like to pass CRTC_STEREO_DOUBLE to that function instead, and then
we could safely use the crtc_ timings in all our .mode_valid() hooks,
which would allow us to reuse those hooks for validating the
adjusted_mode during a modeset.

v2: Fix the language fails in the kernel docs (Daniel)

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171114183258.16976-10-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2018-01-29 21:51:51 +02:00
Ville Syrjälä
2a8d3eac3d drm: Warn if plane/crtc/encoder/connector index exceeds our 32bit bitmasks
We use 32bit bitmasks to track planes/crtcs/encoders/connectors.
Naturally we can only do that if the index of those objects stays
below 32. Issue a warning whenever we exceed that limit, hopefully
prompting someone to fix the problem.

For connectors the issue is a bit more complicated as they can
be created/destroyed at runtime due to MST. So the problem is no
longer a purely theoretical programmer error. As the connector
indexes are allocated via ida, we can simply limit the maximum
value the ida is allowed to hand out. The error handling is already
in place.

v2: Return an error to the caller (Harry)
v3: Print a debug message so that we know what happened (Maarten)

Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180125133020.23845-1-ville.syrjala@linux.intel.com
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
2018-01-29 18:46:53 +02:00
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
Maarten Lankhorst
3fa6a07354 drm/crtc: Convert setcrtc ioctl locking to interruptible.
Pass DRM_MODESET_ACQUIRE_INTERRUPTIBLE to acquire_init, and handle
drm_modeset_backoff which can now fail by returning the error.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20170912133749.6532-7-maarten.lankhorst@linux.intel.com
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
2017-09-13 09:52:05 +02:00
Daniel Vetter
144a7999d6 drm: Handle properties in the core for atomic drivers
The reason behind the original indirection through the helper
functions was to allow existing drivers to overwrite how they handle
properties. For example when a vendor-specific userspace had
expectations that didn't match atomic. That seemed likely, since
atomic is standardizing a _lot_ more of the behaviour of a kms driver.

But 20 drivers later there's no such need at all. Worse, this forces
all drivers to hook up the default behaviour, breaking userspace if
they forget to do that. And it forces us to export a bunch of core
function just for those helpers.

And finally, these helpers are the last places using
drm_atomic_legacy_backoff() and the implicit acquire_ctx.

This patch here just implements the new behaviour and updates the
docs. Follow-up patches will garbage-collect all the dead code.

v2: Fixup docs even better!

v3: Make it actually work ...

v4: Drop the uses_atomic_modeset() checks from the previous patch
again, since they're now moved up in the callchain.

Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Archit Taneja <architt@codeaurora.org> (v3)
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170725120204.2107-1-daniel.vetter@ffwll.ch
2017-08-08 14:45:09 +02:00
Daniel Vetter
4a97a3da42 drm: Don't update property values for atomic drivers
Atomic drivers only use the property value store for immutable (i.e.
can't be set by userspace, but the kernel can still adjust it)
properties. The only tricky part is the removal of the update in
drm_atomic_helper_update_legacy_modeset_state().

This was added in

commit 8c10342cb4 (tag: topic/drm-misc-2015-07-28)
Author: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Date:   Mon Jul 27 13:24:29 2015 +0200

    drm/atomic: Update legacy DPMS state during modesets, v3.

by copying it from the i915 code, where it was originally added in

commit 68d3472047
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Thu Sep 6 22:08:35 2012 +0200

    drm/i915: update dpms property in set_mode

for the legacy modeset code. The reason we needed this hack was that
i915 didn't yet set DRIVER_ATOMIC, and we checked for that instead of
the newer-ish drm_drv_uses_atomic_modeset(), which avoids such
troubles. With the correct feature checks this isn't needed anymore at
all.

Also make sure that drivers don't accidentally get this wrong by
making the exported version of drm_object_property_get_value() only
work for legacy drivers. Only gma500 uses it anyway.

v2: Fixup the uses_atomic_modeset() checks (Maarten)

Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170725120137.1903-1-daniel.vetter@ffwll.ch
2017-08-08 14:11:53 +02:00
Daniel Vetter
53552d5df6 drm: Take mode_config.mutex in setcrtc ioctl
Legacy drivers insist that we really take all the locks in this path,
and the harm in doing so is minimal.

v2: Like git add, it exists :(

Fixes: 2ceb585a95 ("drm: Add explicit acquire ctx handling around ->set_config")
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: David Airlie <airlied@linux.ie>
Cc: dri-devel@lists.freedesktop.org
Cc: Alex Deucher <alexdeucher@gmail.com>
Reported-by: Alex Deucher <alexdeucher@gmail.com>
Acked-and-tested-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170406190654.6733-1-daniel.vetter@ffwll.ch
2017-04-06 22:49:50 +02:00
Daniel Vetter
38b6441e4e drm/atomic-helper: Remove the backoff hack from set_config
Another one bites the dust.

Again let's not forget to remove the temporary hidden acquire_ctx
assignment, now that we pass this all around explicitly it can go
away again.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170322215058.8671-20-daniel.vetter@ffwll.ch
2017-03-29 09:59:16 +02:00
Daniel Vetter
a4eff9aa6d drm: Add acquire ctx parameter to ->set_config
Surprisingly a lot of legacy drivers roll their own, for
runtime pm and because vmwgfx.

Also make nouveau's set_config static while at it.

Cc: Sinclair Yeh <syeh@vmware.com>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170322215058.8671-19-daniel.vetter@ffwll.ch
2017-03-29 09:56:25 +02:00
Daniel Vetter
2ceb585a95 drm: Add explicit acquire ctx handling around ->set_config
Just the groundwork to have something to feed into ->set_config.
Again we need a temporary hack to still fill out the legacy
ctx in mode_config.acquire_ctx.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170322215058.8671-18-daniel.vetter@ffwll.ch
2017-03-29 09:56:13 +02:00
Daniel Vetter
d49473a53a drm: Restrict drm_mode_set_config_internal to non-atomic drivers
This is another case where we really can't reconstruct a acquire ctx
in any useful fashion because all the callers are legacy drivers. So
like drm_plane_force_disable simply restrict it to non-atomic drivers
so that it's clear we're ok with passing a NULL ctx.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170322215058.8671-17-daniel.vetter@ffwll.ch
2017-03-29 09:55:46 +02:00