Commit Graph

680690 Commits

Author SHA1 Message Date
Shashank Sharma
0c1f528cb1 drm: handle HDMI 2.0 VICs in AVI info-frames
HDMI 1.4b support the CEA video modes as per range of CEA-861-D (VIC 1-64).
For any other mode, the VIC filed in AVI infoframes should be 0.
HDMI 2.0 sinks, support video modes range as per CEA-861-F spec, which is
extended to (VIC 1-107).

This patch adds a bool input variable, which indicates if the connected
sink is a HDMI 2.0 sink or not. This will make sure that we don't pass a
HDMI 2.0 VIC to a HDMI 1.4 sink.

This patch touches all drm drivers, who are callers of this function
drm_hdmi_avi_infoframe_from_display_mode but to make sure there is
no change in current behavior, is_hdmi2 is kept as false.

In case of I915 driver, this patch:
- checks if the connected display is HDMI 2.0.
- HDMI infoframes carry one of this two type of information:
	- VIC for 4K modes for HDMI 1.4 sinks
	- S3D information for S3D modes
  As CEA-861-F has already defined VICs for 4K videomodes, this
  patch doesn't allow sending HDMI infoframes for HDMI 2.0 sinks,
  until the mode is 3D.

Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Cc: Jose Abreu <jose.abreu@synopsys.com>
Cc: Andrzej Hajda <a.hajda@samsung.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>

PS: This patch touches a few lines in few files, which were
already above 80 char, so checkpatch gives 80 char warning again.
- gpu/drm/omapdrm/omap_encoder.c
- gpu/drm/i915/intel_sdvo.c

V2: Rebase, Added r-b from Andrzej
V3: Addressed review comment from Ville:
	- Do not send VICs in both AVI-IF and HDMI-IF
	  send only one of it.
V4: Rebase
V5: Added r-b from Neil.
    Addressed review comments from Ville
    - Do not block HDMI vendor IF, instead check for VIC while
      handling AVI infoframes
V6: Rebase
V7: Rebase

Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Shashank Sharma <shashank.sharma@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1499960000-9232-2-git-send-email-shashank.sharma@intel.com
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
2017-07-14 21:23:54 +03:00
Noralf Trønnes
3589211e9b drm/tinydrm: Add RePaper e-ink driver
This adds support for the Pervasive Displays RePaper branded displays.
The controller code is taken from the userspace driver available
through repaper.org. Only the V231 film is supported since the others
are EOL.

Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1496934875-51984-5-git-send-email-noralf@tronnes.org
2017-07-14 19:30:08 +02:00
Noralf Trønnes
379ea9a1a5 drm/tinydrm: Add tinydrm_xrgb8888_to_gray8() helper
Drm has no monochrome or greyscale support so add a conversion
from the common format XR24.

Also reorder includes into the common order.

Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1496934875-51984-4-git-send-email-noralf@tronnes.org
2017-07-14 19:29:59 +02:00
Noralf Trønnes
7f0dc77772 dt-bindings: Add Pervasive Displays RePaper bindings
Add device-tree binding documentation for the 1.44", 1.9", 2.0" and 2.7"
display panels.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1496934875-51984-3-git-send-email-noralf@tronnes.org
2017-07-14 19:29:33 +02:00
Noralf Trønnes
d432d6922b of: Add vendor prefix for Pervasive Displays
Pervasive Displays Inc. designs, develops, and manufactures low-power
electrophoretic (e-ink) display modules and supporting electronics for
commercial and industrial display applications.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1496934875-51984-2-git-send-email-noralf@tronnes.org
2017-07-14 19:14:47 +02:00
Peter Rosin
964c60063b drm/fb-helper: separate the fb_setcmap helper into atomic and legacy paths
The legacy path implements setcmap in terms of crtc .gamma_set.

The atomic path implements setcmap by directly updating the crtc gamma_lut
property.

This has a couple of benefits:
- it makes the redundant fb helpers .load_lut, .gamma_set and .gamma_get
  completely obsolete. They are now unused and subject for removal.
- atomic drivers that support clut modes get fbdev support for those from
  the drm core. This includes atmel-hlcdc, but perhaps others as well?

Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170713162538.22788-4-peda@axentia.se
2017-07-14 15:53:06 +02:00
Peter Rosin
e2b9dd304a drm/atomic-helper: update lut props directly in ..._legacy_gamma_set
Do not waste cycles looking up the property id when we have the
actual property already.

Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170713162538.22788-3-peda@axentia.se
2017-07-14 15:53:06 +02:00
Peter Rosin
5f057ffd6d drm: rename, adjust and export drm_atomic_replace_property_blob
The function has little to do with atomic, it's just where it has so
far been needed. So, rename it to drm_property_replace_blob, move it
to drm_property.c and export it.

Change the semantics to return whether the blob was replaced instead
of using an extra argument for that.

Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170713162538.22788-2-peda@axentia.se
2017-07-14 15:53:06 +02:00
Ville Syrjälä
e38e128950 drm/dp/mst: Use memchr_inv() instead of memcmp() against a zeroed array
We have memch_inv(), so no need to memcmp() against a zeroed temp array.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170712155254.26455-1-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2017-07-13 19:28:43 +03:00
Ville Syrjälä
a4370c7774 drm/atomic: Make private objs proper objects
Make the atomic private object stuff less special by introducing proper
base classes for the object and its state. Drivers can embed these in
their own appropriate objects, after which these things will work
exactly like the plane/crtc/connector states during atomic operations.

v2: Reorder to not depend on drm_dynarray (Daniel)

Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> #v1
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170712155102.26276-3-ville.syrjala@linux.intel.com
2017-07-13 19:28:43 +03:00
Ville Syrjälä
178e32c224 drm/atomic: Remove pointless private object NULL state check
We will never add private objects with a NULL state into the atomic
state, hence checking for that is pointless.

Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170712155102.26276-2-ville.syrjala@linux.intel.com
2017-07-13 19:28:43 +03:00
Ville Syrjälä
56a91c4932 drm/dp/mst: Handle errors from drm_atomic_get_private_obj_state() correctly
On failure drm_atomic_get_private_obj_state() returns and error
pointer instead of NULL. Adjust the checks in the callers to match.

Cc: stable@vger.kernel.org
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Fixes: edb1ed1ab7 ("drm/dp: Add DP MST helpers to atomically find and release vcpi slots")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170712155102.26276-1-ville.syrjala@linux.intel.com
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
2017-07-13 19:28:43 +03:00
Maarten Lankhorst
e27986853a drm/mediatek: Convert to new iterator macros
for_each_obj_in_state is about to be removed, so use the new atomic
iterator macros.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: CK Hu <ck.hu@mediatek.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mediatek@lists.infradead.org
Link: http://patchwork.freedesktop.org/patch/msgid/20170712081344.25495-14-maarten.lankhorst@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
2017-07-13 09:56:00 +02:00
Maarten Lankhorst
30ea752146 drm/imx: Use atomic iterator macros
for_each_obj_in_state is about to be removed, so use the new atomic
iterator macros.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20170712081344.25495-13-maarten.lankhorst@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Tested-by: Philipp Zabel <p.zabel@pengutronix.de>
2017-07-13 09:54:48 +02:00
Maarten Lankhorst
a8e3fb5508 drm/mali: Use new atomic iterator macros
for_each_obj_in_state is about to be removed, so use the new iterator
macros.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Brian Starkey <brian.starkey@arm.com>
Cc: Mali DP Maintainers <malidp@foss.arm.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170712081344.25495-12-maarten.lankhorst@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
2017-07-13 09:54:12 +02:00
Maarten Lankhorst
e741f2b182 drm/rockchip: Use for_each_oldnew_plane_in_state in vop_crtc_atomic_flush
for_each_obj_in_state is about to be removed, so use the new atomic
iterator macros.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Mark Yao <mark.yao@rock-chips.com>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-rockchip@lists.infradead.org
Link: http://patchwork.freedesktop.org/patch/msgid/20170712081344.25495-10-maarten.lankhorst@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Mark Yao <mark.yao@rock-chips.com>
2017-07-13 09:53:43 +02:00
Maarten Lankhorst
d57da16f57 drm/atmel-hlcdec: Use for_each_new_connector_in_state
for_each_obj_in_state is about to be removed, so use the new iterator
macros.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Boris Brezillon <boris.brezillon@free-electrons.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170712081344.25495-9-maarten.lankhorst@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-07-13 09:52:09 +02:00
Maarten Lankhorst
fe5f6b1fa0 drm/i915: Use correct iterator macro
for_each_connector_in_state will be removed, so use the right state
here.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: intel-gfx@lists.freedesktop.org
Link: http://patchwork.freedesktop.org/patch/msgid/20170712081344.25495-7-maarten.lankhorst@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2017-07-13 09:51:01 +02:00
Maarten Lankhorst
bdc362f631 drm/vmwgfx: Make check_modeset() use the new atomic iterator macros.
I don't think the checking of resources in this function is very
atomic-like, but it should definitely not use a macro that's about
to be removed.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: VMware Graphics <linux-graphics-maintainer@vmware.com>
Cc: Sinclair Yeh <syeh@vmware.com>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170712081344.25495-6-maarten.lankhorst@linux.intel.com
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
[mlankhorst: Make function static (danvet)]
2017-07-13 09:50:39 +02:00
Maarten Lankhorst
2d705c0b36 drm/atomic: Use new iterator macros in drm_atomic_helper_wait_for_flip_done
for_each_obj_in_state is about to be removed, so use the correct new
iterator macro.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
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>
Link: http://patchwork.freedesktop.org/patch/msgid/20170712081344.25495-5-maarten.lankhorst@linux.intel.com
[mlankhorst: Based on danvet's feedback, only apply first hunk and rename crtc_state variable to unused]
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2017-07-13 09:46:37 +02:00
Maarten Lankhorst
dfb8bb3bd4 drm/atomic: Use the new helpers in drm_atomic_helper_disable_all()
for_each_obj_in_state will be removed, so don't use it here.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
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>
Link: http://patchwork.freedesktop.org/patch/msgid/20170712081344.25495-4-maarten.lankhorst@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2017-07-13 09:44:59 +02:00
Maarten Lankhorst
0c3eb12324 drm/atomic: Use the correct iterator macro in atomic_remove_fb
for_each_obj_in_state will be removed, so use the new state here.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
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>
Link: http://patchwork.freedesktop.org/patch/msgid/20170712081344.25495-3-maarten.lankhorst@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2017-07-13 09:44:58 +02:00
Maarten Lankhorst
765831dc27 drm/simple-kms-helper: Fix the check for the mismatch between plane and CRTC enabled.
You can enable the CRTC and without adding the plane to the state and
it will succeed. This should be prevented in the crtc check instead of
the plane check, because the plane check may never run for atomic
enable, but the crtc check always will.

This is based on a similar check in vmwgfx.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
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>
Link: http://patchwork.freedesktop.org/patch/msgid/20170712081344.25495-2-maarten.lankhorst@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2017-07-13 09:44:51 +02:00
Alexandru Moise
371c2279aa drm: inhibit drm drivers register to uninitialized drm core
If the DRM core fails to init for whatever reason, ensure that
no driver ever calls drm_dev_register().

This is best done at drm_dev_init() as it covers drivers that call
drm_dev_alloc() as well as drivers that prefer to embed struct
drm_device into their own device struct and call drm_dev_init()
themselves.

In my case I had so many dynamic device majors used that the major
number for DRM (226) was stolen, causing DRM core init to fail after
failing to register a chrdev, and ultimately calling debugfs_remove()
on drm_debugfs_root in drm_core_exit().

After drm core failed to init, VGEM was still calling drm_dev_register(),
ultimately leading to drm_debugfs_init(), with drm_debugfs_root passed
as the root for the new debugfs dir at debugfs_create_dir().

This led to a kernel panic once we were either derefencing root->d_inode
while it was NULL or calling root->d_inode->i_op->lookup() while it was
NULL in debugfs at inode_lock() or lookup_*().

Signed-off-by: Alexandru Moise <00moses.alexander00@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170708214352.GA27205@gmail.com
2017-07-11 12:03:11 +02:00
Inki Dae
f74c527591 drm/bridge: ti-tfp410: clean up drm_bridge_add call
This patch removes unnecessary checking of return value.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1499071350-25168-12-git-send-email-inki.dae@samsung.com
2017-07-06 14:16:46 +05:30
Inki Dae
dc01732eee drm/bridge: tc358767: clean up drm_bridge_add call
This patch removes unnecessary checking of return value.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1499071350-25168-11-git-send-email-inki.dae@samsung.com
2017-07-06 14:16:37 +05:30
Inki Dae
b678682e84 drm/bridge: synopsys: dw-hdmi: clean up drm_bridge_add call
This patch removes unnecessary checking of return value.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1499071350-25168-10-git-send-email-inki.dae@samsung.com
2017-07-06 14:16:32 +05:30
Inki Dae
d341a640db drm/bridge: sii902x: clean up drm_bridge_add call
This patch removes unnecessary checking of return value.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1499071350-25168-9-git-send-email-inki.dae@samsung.com
2017-07-06 14:16:29 +05:30
Inki Dae
d0ceb3ec4a drm/bridge: ps8622: clean up drm_bridge_add call
This patch removes unnecessary checking of return value.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1499071350-25168-8-git-send-email-inki.dae@samsung.com
2017-07-06 14:16:27 +05:30
Inki Dae
3a45d25dcf drm/bridge: panel: clean up drm_bridge_add call
This patch removes unnecessary checking of return value.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1499071350-25168-7-git-send-email-inki.dae@samsung.com
2017-07-06 14:16:24 +05:30
Inki Dae
830dcb4451 drm/bridge: nxp-ptn3460: clean up drm_bridge_add call
This patch removes unnecessary checking of return value.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1499071350-25168-6-git-send-email-inki.dae@samsung.com
2017-07-06 14:16:19 +05:30
Inki Dae
47e3427854 drm/bridge: vga-dac: clean up drm_bridge_add call
This patch removes unnecessary checking of return value.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1499071350-25168-5-git-send-email-inki.dae@samsung.com
2017-07-06 14:16:15 +05:30
Inki Dae
dd2adf743b drm/bridge: analogix-anx78xx: clean up drm_bridge_add call
This patch removes unnecessary checking of return value.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1499071350-25168-4-git-send-email-inki.dae@samsung.com
2017-07-06 14:16:06 +05:30
Inki Dae
9a120848d5 drm/bridge: adv7511: clean up drm_bridge_add call
This patch removes unnecessary checking of return value.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1499071350-25168-3-git-send-email-inki.dae@samsung.com
2017-07-06 14:15:55 +05:30
Peter Rosin
08c992c55d drm/fb-helper: remove drm_fb_helper_save_lut_atomic
drm_fb_helper_save_lut_atomic is redundant since the .gamma_store is
now always kept up to date by drm_fb_helper_setcmap.

Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1499164632-5582-4-git-send-email-peda@axentia.se
2017-07-06 10:36:22 +02:00
Peter Rosin
a3562a0e47 drm/fb-helper: keep the .gamma_store updated in drm_fb_helper_setcmap
I think the gamma_store can end up invalid on error. But the way I read
it, that can happen in drm_mode_gamma_set_ioctl as well, so why should
this pesky legacy fbdev stuff be any better?

Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1499164632-5582-3-git-send-email-peda@axentia.se
2017-07-06 10:36:17 +02:00
Peter Rosin
b8e2b0199c drm/fb-helper: factor out pseudo-palette
The pseudo-palette has nothing to do with the crtc, so move it
out of the crtc loop and update the palette once, then break out
early.

Signed-off-by: Peter Rosin <peda@axenita.se>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1499164632-5582-2-git-send-email-peda@axentia.se
2017-07-06 10:36:11 +02:00
Daniel Vetter
6b7dc6e9f8 drm/fb-helper: Split dpms handling into legacy and atomic paths
Like with panning and modesetting, and like with those, stick with
simple drm_modeset_locking_all for the legacy path, and the full
atomic dance for atomic drivers.

This means a bit more boilerplate since setting up the atomic state
machinery is rather verbose, but then this is shared code for 30+
drivers or so, so meh.

After this patch there's only the LUT/cmap path which is still using
drm_modeset_lock_all for an atomic driver. But Peter is already
locking into reworking that, so I'll leave that code as-is for now.

v2: Squash in patches from Maarten to unify all the various atomic
paths into just one atomic update function for fbdev overall. On top
do one s/restore_fbdev_mode/restore_fbdev_mode_atomic/ so that we have
all-atomic callchains after the first check.

Cc: Peter Rosin <peda@axentia.se>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Thierry Reding <treding@nvidia.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170704151833.17304-10-daniel.vetter@ffwll.ch
2017-07-06 10:02:12 +02:00
Daniel Vetter
e13a058310 drm/fb-helper: Stop using mode_config.mutex for internals
Those are now all protected using fb_helper->lock.

v2: We still need to hold mode_config.mutex right around calling
connector->fill_modes.

v3: I forgot to hold mode_config.mutex while looking at
connector->status and the mode list. Also, we need to patch up the
i915 ->initial_config callback to grab the locks it needs to inspect
the modeset state recovered from the fw.

v4: Don't reorder the probe too much (Ville).

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Thierry Reding <treding@nvidia.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170705045629.31265-1-daniel.vetter@ffwll.ch
2017-07-06 10:02:01 +02:00
Daniel Vetter
1d0c641091 drm/fb-helper: Push locking into restore_fbdev_mode_atomic|legacy
Same game as with the panning function, use drm_modeset_lock_all for
legacy paths, and a proper acquire ctx w/w mutex dance for atomic.

Cc: John Stultz <john.stultz@linaro.org>
Cc: Thierry Reding <treding@nvidia.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170704151833.17304-8-daniel.vetter@ffwll.ch
2017-07-06 10:01:47 +02:00
Daniel Vetter
5c2e3448d1 drm/fb-helper: Push locking into pan_display_atomic|legacy
For the legacy path we'll keep drm_modeset_lock_all, for the atomic
one we drop the use of the magic implicit context and wire it up
properly.

Cc: John Stultz <john.stultz@linaro.org>
Cc: Thierry Reding <treding@nvidia.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170704151833.17304-7-daniel.vetter@ffwll.ch
2017-07-06 10:01:35 +02:00
Daniel Vetter
235d3e4fa1 drm/fb-helper: Drop locking from the vsync wait ioctl code
Like with the drm-native vblank wait ioctl we can entirely rely on the
spinlocks in drm_vblank.c, no need at all to take expensive mutexes.
The only reason we had to take mode_config.mutex was to protect the
fbdev helper's data-structures, but that's now done by
fb_helper->lock.

Cc: John Stultz <john.stultz@linaro.org>
Cc: Thierry Reding <treding@nvidia.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170704151833.17304-6-daniel.vetter@ffwll.ch
2017-07-06 10:01:19 +02:00
Daniel Vetter
bdac4a052a drm/fb-helper: Push locking in fb_is_bound
That function only needs to take the individual crtc locks, not all
the kms locks. Push down the locking and then minimize it.

Cc: John Stultz <john.stultz@linaro.org>
Cc: Thierry Reding <treding@nvidia.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170704151833.17304-5-daniel.vetter@ffwll.ch
2017-07-06 10:00:55 +02:00
Thierry Reding
e9827d8ea2 drm/fb-helper: Add top-level lock
Introduce a new top-level lock for the FB helper code. This will allow
better locking granularity and avoid the need to abuse modeset locking
for this purpose instead.

This patch just adds the new lock everywhere we currently grab
mode_config->mutex (explicitly, or through drm_modeset_lock_all).
Follow-up patches will push the kms locking down into only the places
that need it.

v2:
- use lockdep_assert_held
- use drm_fb_helper_for_each_connector where possible
- use the new top-level lock consistently, i.e. in all the places
  we're currently acquiring mode_config.mutex.
- small polish to the kerneldoc

Tested-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com> (v1)
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170704151833.17304-4-daniel.vetter@ffwll.ch
2017-07-06 10:00:42 +02:00
Daniel Vetter
666b7cdc69 drm/i915: Drop FBDEV #ifdev in mst code
Since

commit a03fdcb186
Author: Archit Taneja <architt@codeaurora.org>
Date:   Wed Aug 5 12:28:57 2015 +0530

    drm: Add top level Kconfig option for DRM fbdev emulation

this is properly handled using dummy functions. This essentially
undoes

commit 7296c849bf
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Tue Jul 22 20:10:28 2014 +1000

    drm/i915: fix build without fbde

v2: We also need to drop the #ifdef from headers. Seems like a small
price to pay for slightly cleaner code.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170704151833.17304-3-daniel.vetter@ffwll.ch
2017-07-06 10:00:33 +02:00
Thierry Reding
af2405af07 drm/fb-helper: Push down modeset lock into FB helpers
Move the modeset locking from drivers into FB helpers.

v2: Also handle intel_connector_add_to_fbdev.

v3: Prevent race in intel_dp_mst with ->detect (Maarten)

Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Tested-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com> (v1)
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170704151833.17304-2-daniel.vetter@ffwll.ch
2017-07-06 10:00:22 +02:00
Chris Wilson
e6090cc9be drm: Remove pending_read_domains and pending_write_domain
The last user of these (i915.ko) no longer does. We can slim down the
core GEM object by removing the unused 8 bytes.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170705154900.28697-1-chris@chris-wilson.co.uk
2017-07-05 22:18:07 +02:00
Daniel Vetter
8c3a8181a4 drm/atomic-helper: Realign function parameters
Too jarring.

Fixes: f869a6ecf2 ("drm/atomic: Add target_vblank support in atomic helpers (v2)")
Cc: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170627145936.18983-14-daniel.vetter@ffwll.ch
2017-07-04 17:16:00 +02:00
Maarten Lankhorst
7114d2e22f drm/fb-helper: Remove drm_mode_config_fb.
Remove drm_mode_config_fb, I don't see the point of it.
To make it clear that it's ok to use plane->fb directly,
move up drm_drv_uses_atomic_modeset so the code is skipped for atomic
drivers that require plane_state->fb.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170703115106.18783-1-maarten.lankhorst@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2017-07-04 09:49:15 +02:00
Mark Cave-Ayland
931e8c661a drm/bochs: switch fb_ops over to use drm_fb_helper_cfb helpers
The current drm_fb_helper_sys helpers referenced in fb_ops assume that the
video memory is in system RAM. This is not the case for sparc which uses direct
physical memory accesses for IO memory and causes the bochs_drm module to panic
immediately upon startup as it tries to initialise the framebuffer.

Switching fb_ops over to use the drm_fb_helper_cfb helpers ensures that the
correct accesses are used on sparc, fixing the panic and allowing the
bochs_drm module to function under qemu-system-sparc64.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/1499032363-8290-1-git-send-email-mark.cave-ayland@ilande.co.uk
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-07-03 10:31:14 +02:00