Commit Graph

32999 Commits

Author SHA1 Message Date
Tom St Denis
6fc0deaf58 drm/amd/amdgpu: debugfs SMC addresses are byte addresses
Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-08-30 17:55:31 -04:00
Jordan Lazare
738d98c994 drm/amd/powerplay: Remove unused variable causing compile warning
If treating warnings as errors this causes a build error

Signed-off-by: Jordan Lazare <Jordan.Lazare@amd.com>
Reviewed-by: Alex Deucher <Alexander.Deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-08-30 17:55:20 -04:00
Tom St Denis
83667ed698 drm/amd/powerplay: Only load SDMA0/MEC firmware once on Stoney (v2)
Only load the SDMA0/MEC1 firmware once in the Carrizo SMU manager
driver.

(v2) Avoid loading SDMA0 twice too.

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-08-30 17:55:08 -04:00
Tom St Denis
610ecfd6b4 drm/amd/powerplay: Fix up return codes in cz SMU manager
Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-08-30 17:54:58 -04:00
Tom St Denis
a3477255b7 drm/amd/powerplay: Tidy up cz SMU manager
Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-08-30 17:54:50 -04:00
Tom St Denis
b80b13f0cd drm/amd/powerplay: Fix CZ SMU firmware load check (v4)
Remove an errant return in the middle of the check
function as well as check for success in the start
function.

(v2) Add return check to smu_load_fw()
(v3) Don't return early if SMU load check fails
(v4) No returns!  :-)

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-08-30 17:54:42 -04:00
Marek Olšák
95844d20ae drm/amdgpu: throttle buffer migrations at CS using a fixed MBps limit (v2)
The old mechanism used a per-submission limit that didn't take previous
submissions within the same time frame into account. It also filled VRAM
slowly when VRAM usage dropped due to a big eviction or buffer deallocation.

This new method establishes a configurable MBps limit that is obeyed when
VRAM usage is very high. When VRAM usage is not very high, it gives
the driver the freedom to fill it quickly. The result is more consistent
performance.

It can't keep the BO move rate low if lots of evictions are happening due
to VRAM fragmentation, or if a big buffer is being migrated.

The amdgpu.moverate parameter can be used to set a non-default limit.
Measurements can be done to find out which amdgpu.moverate setting gives
the best results.

Mainly APUs and cards with small VRAM will benefit from this. For F1 2015,
anything with 2 GB VRAM or less will benefit.

Some benchmark results - F1 2015 (Tonga 2GB):

Limit      MinFPS AvgFPS
Old code:  14     32.6
128 MB/s:  28     41
64 MB/s:   15.5   43
32 MB/s:   28.7   43.4
8 MB/s:    27.8   44.4
8 MB/s:    21.9   42.8 (different run)

Random drops in Min FPS can still occur (due to fragmented VRAM?), but
the average FPS is much better. 8 MB/s is probably a good limit for this
game & the current VRAM management. The random FPS drops are still to be
tackled.

v2: use a spinlock

Signed-off-by: Marek Olšák <marek.olsak@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-08-30 17:54:30 -04:00
Eric Anholt
313a61d307 drm/vc4: Allow some more signals to be packed with uniform resets.
The intent was to make sure people don't sneak in a small immediate or
something to change the interpretation of the uniform update args, but
these signals are just fine.

Fixes a validation failure in the current X server on some Render
operation.

Signed-off-by: Eric Anholt <eric@anholt.net>
2016-08-30 14:01:21 -07:00
Peter Rosin
d1ed7985b9 i2c: move locking operations to their own struct
This makes it trivial to constify them, so do that.

Signed-off-by: Peter Rosin <peda@axentia.se>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2016-08-30 22:56:14 +02:00
Jonathan Liu
4b30950252 drm/sun4i: rgb: add missing calls to drm_panel_{prepare,unprepare}
If the enable-gpios property of a simple panel in device tree is set,
the GPIO is not toggled on/off because of missing calls to
drm_panel_prepare and drm_panel_unprepare.

Signed-off-by: Jonathan Liu <net147@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2016-08-30 14:52:21 +02:00
Jose Abreu
b0118e7d93 drm: bridge/dw-hdmi: Fix colorspace and scan information registers values
Colorspace and scan information values were being written in wrong
offsets. This patch corrects this and writes the values at the
offsets specified in the databook.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Cc: Carlos Palminha <palminha@synopsys.com>
Cc: Archit Taneja <architt@codeaurora.org>
Cc: David Airlie <airlied@linux.ie>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/96fd0f06b7ebc2ee5cb8239a99648f3107e24497.1471530573.git.joabreu@synopsys.com
2016-08-30 15:36:25 +05:30
Lucas Stach
a474478642 drm/imx: fix crtc vblank state regression
The atomic conversion lost the notification to let the DRM core
know about the current state of the CRTC vblank interrupts. This
regressed the ability of the core to reject page flip attempts
on currently disabled CRTCs. Add back the notifications.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-30 08:35:22 +02:00
Philipp Zabel
c15d493cb6 drm/imx: parallel-display: detach bridge or panel on unbind
Don't leave any bridge or panel attached to a stale driver instance
when unbinding, to allow reattachment on a rebind.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-29 16:30:48 +02:00
Philipp Zabel
60203c90bf drm/imx: imx-ldb: detach bridge on unbind
Don't leave the bridge attached to a stale driver instance when
unbinding, to allow reattachment on a rebind.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-29 16:30:48 +02:00
Lucas Stach
b1318d50a0 drm/imx: imx-ldb: detach panel on unbind
Make sure to leave a clean panel state behind and allow to
properly attach to the panel again on a rebind.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-29 16:30:48 +02:00
Steve Longerbeam
ac4708fab1 gpu: ipu-v3: Add FSU channel linking support
Adds functions to link and unlink source channels to sink
channels in the FSU:

int ipu_fsu_link(struct ipu_soc *ipu, int src_ch, int sink_ch);
int ipu_fsu_unlink(struct ipu_soc *ipu, int src_ch, int sink_ch);

The channels numbers are usually IDMAC channels, but they can also be
channels that do not transfer data to or from memory. The following
convenience functions can be used in place of ipu_fsu_link/unlink()
when both source and sink channels are IDMAC channels:

int ipu_idmac_link(struct ipuv3_channel *src, struct ipuv3_channel *sink);
int ipu_idmac_unlink(struct ipuv3_channel *src, struct ipuv3_channel *sink);

So far the following links are supported:

IPUV3_CHANNEL_IC_PRP_ENC_MEM -> IPUV3_CHANNEL_MEM_ROT_ENC
PUV3_CHANNEL_IC_PRP_VF_MEM   -> IPUV3_CHANNEL_MEM_ROT_VF
IPUV3_CHANNEL_IC_PP_MEM      -> IPUV3_CHANNEL_MEM_ROT_PP
IPUV3_CHANNEL_CSI_DIRECT     -> IPUV3_CHANNEL_CSI_VDI_PREV

More links can be added to the fsu_link_info[] array.

Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-29 16:30:23 +02:00
Steve Longerbeam
2d2ead4530 gpu: ipu-v3: Add Video Deinterlacer unit
Adds the Video Deinterlacer (VDIC) unit.

Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-29 16:30:11 +02:00
Liu Ying
c6c1f9bc79 drm/imx: Add active plane reconfiguration support
We don't support configuring active plane on-the-fly for imx-drm.
The relevant CRTC should be disabled before the plane configuration.
Of course, the plane itself should be disabled as well.
This patch adds active plane reconfiguration support by forcing CRTC
mode change and disabling-enabling plane in plane's ->atomic_update
callback.

Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Tested-by: Peter Senna Tschudin <peter.senna@gmail.com>
Tested-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-29 16:21:18 +02:00
Daniel Vetter
c8458c7efd drm/doc: Polish docs for drm_property&drm_property_blob
- remove kerneldoc for drm-internal functions
- drm_property_replace_global_blob isn't actually atomic, and doesn't
  need to be. Update docs&comments to match
- document all the types and try to link things a bit better
- nits all over

v2: Appease checkpatch in the moved code (Archit)

Reviewed-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20160829082757.17913-9-daniel.vetter@ffwll.ch
2016-08-29 15:37:49 +02:00
Daniel Vetter
77953bd136 drm: Unify handling of blob and object properties
They work exactly the same now, after the refcounting unification a bit
ago. The only reason they're distinct is backwards compat with existing
userspace.

Cc: Daniel Stone <daniels@collabora.com>
Reviewed-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20160829082757.17913-8-daniel.vetter@ffwll.ch
2016-08-29 15:37:41 +02:00
Daniel Vetter
59e71ee746 drm: Extract drm_property.[hc]
This just contains the base property classes and all the code to
handle blobs. I think for any kind of standardized/shared properties
it's better to have separate files - this is fairly big already as-is.

v2: resurrect misplaced hunk (Daniel Stone)

Cc: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20160829082757.17913-7-daniel.vetter@ffwll.ch
2016-08-29 15:37:34 +02:00
Daniel Vetter
ec5e304747 drm: move drm_mode_legacy_fb_format to drm_fourcc.c
It's part of the drm fourcc handling code, mapping the old depth/bpp
values to new fourcc codes.

Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20160829082757.17913-6-daniel.vetter@ffwll.ch
2016-08-29 15:37:28 +02:00
Daniel Vetter
a2511a557e drm/doc: Polish docs for drm_mode_object
I figured an overview section here is overkill, and better
to just document the 2 structures themselves well enough.

v2: Review from Archit:
- Appease checkpatch in moved code.
- Spelling fixes in the kerneldoc.

Reviewed-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20160829082757.17913-5-daniel.vetter@ffwll.ch
2016-08-29 15:37:23 +02:00
Daniel Vetter
f094d88195 drm: Remove drm_mode_object->atomic_count
It's only used in drm_mode_object_get_properties, and we can compute
it there directly with a bit of code shuffling.

Reviewed-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20160829082757.17913-4-daniel.vetter@ffwll.ch
2016-08-29 15:37:18 +02:00
Daniel Vetter
949619f32e drm: Extract drm_mode_object.[hc]
Just for the struct drm_mode_object base class. The header file was
already partially extracted to help untangle the include loops.

v2:
- Also move the generic get/set property ioctls. At first this seemed
  like a bad idea since it requires making drm_mode_crtc_set_obj_prop
  non-static. But eventually that will get split away too (like
  the connector version already is) for both crtc and planes. Hence I
  reconsidered.

- drm_mode_object.[hc] instead of drm_modeset.[hc], which requires
  renaming the drm_modeset.h header I already started building up.
  This is more consistent (matches the name of the main structure),
  and I want to be able to use drm_modeset.[hc] for the basic modeset
  init/cleanup functionality like drm_mode_config_init.

Reviewed-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20160829082757.17913-3-daniel.vetter@ffwll.ch
2016-08-29 15:37:13 +02:00
Daniel Vetter
e03e6de03e drm/doc: Polish kerneldoc for encoders
- Move missing bits into struct drm_encoder docs.
- Explain that encoders are 95% internal and only 5% uapi, and that in
  general the uapi part is broken.
- Remove verbose comments for functions not exposed to drivers.

v2: Review from Archit:
- Appease checkpatch in the moved code.
- Make it clearer that bridges are not exposed to userspace.

Reviewed-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20160829082757.17913-2-daniel.vetter@ffwll.ch
2016-08-29 15:37:08 +02:00
Daniel Vetter
321a95ae35 drm: Extract drm_encoder.[hc]
Same treatment as before. Only hiccup is drm_crtc_mask, which
unfortunately can't be resolved until drm_crtc.h is less of a monster.
Untangle the header loop with a forward declaration for that static
inline.

Reviewed-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20160829082757.17913-1-daniel.vetter@ffwll.ch
2016-08-29 15:37:03 +02:00
Jani Nikula
46e69f3982 drm/i915/backlight: handle enabled but zero duty cycle at module load
Don't consider enabled but zero duty cycle backlight disabled. Clamp
level between min and max for sanity.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1471939811-9817-1-git-send-email-maarten.lankhorst@linux.intel.com
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2016-08-29 13:59:05 +02:00
Maarten Lankhorst
ce5e2ac1a4 drm/i915: Fix intel_display_crc_init for !DEBUGFS
The mentioned commit changes intel_display_crc_init to take a dev_priv,
but forgets to change the stub.

Cc: David Weinehall <david.weinehall@linux.intel.com>
Fixes: 36cdd0138b ("drm/i915: debugfs spring cleaning")
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reported-and-by: Kim Lidström <kim@dxtr.im>
Link: http://patchwork.freedesktop.org/patch/msgid/1472116022-17598-1-git-send-email-maarten.lankhorst@linux.intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: David Weinehall <david.weinehall@linux.intel.com>
2016-08-29 13:58:21 +02:00
Maarten Lankhorst
e896402c37 drm/i915: Add missing parameter to intel_dp_set_drrs_state documentation.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1472116022-17598-2-git-send-email-maarten.lankhorst@linux.intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
2016-08-29 13:56:44 +02:00
Lucas Stach
a40e65b764 drm/imx: add exclusive fence to plane state
This allows the atomic helper to wait on them, instead of open-coding
the same in the imx-drm driver.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-29 12:45:05 +02:00
Lucas Stach
df4b2233ab drm/imx: fold ipu_plane_disable into ipu_disable_plane
ipu_disable_plane is the only left caller of ipu_plane_disable.
Having those 2 similar named functions is confusing and superfluous,
so fold them into 1.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-29 12:45:05 +02:00
Lucas Stach
8e3b16e211 drm/imx: don't destroy mode objects manually on driver unbind
Instead let drm_mode_config_cleanup() do the work when taking down
the master device. This requires all cleanup functions to be
properly hooked up to the mode object .destroy callback.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-29 12:45:05 +02:00
Lucas Stach
54db5decce drm/imx: drop deprecated load/unload drm_driver ops
Drop the load/unload driver ops, as they are deprecated because of their
inherent races, with devices being visible to userspace before they are
fully initialized.

Move this code into the driver bind/unbind routines bracketed by the
proper drm_dev_alloc/register and drm_dev_unregister/unref calls.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-29 12:45:05 +02:00
Lucas Stach
73cde76a61 drm/imx: don't call disable_plane in plane destroy path
When the destroy path is called the plane should already be
disabled. If not, this is a core bug and should not be worked
around in the driver.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-29 12:45:05 +02:00
Liu Ying
1780999ced drm/imx: Add active plane reconfiguration support
We don't support configuring active plane on-the-fly for imx-drm.
The relevant CRTC should be disabled before the plane configuration.
Of course, the plane itself should be disabled as well.

This patch adds active plane reconfiguration support by forcing CRTC
mode change in plane's ->atomic_check callback so that the CRTC
will be disabled before the plane configuration.

Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Peter Senna Tschudin <peter.senna@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-29 12:45:05 +02:00
Liu Ying
5f4df0c769 drm/imx: Use DRM_PLANE_COMMIT_NO_DISABLE_AFTER_MODESET flag
The IPUv3 display controller behind imx-drm needs all planes of
a CRTC be disabled when the CRTC is disabled.
The DRM_PLANE_COMMIT_NO_DISABLE_AFTER_MODESET flag reflects this
hardware requirement.  Let's use the flag for imx-drm.

Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Peter Senna Tschudin <peter.senna@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-29 12:45:05 +02:00
Liu Ying
8cc17b59b0 drm/imx: ipuv3-crtc: Use the callback ->atomic_disable instead of ->disable
Now that the drm atomic core supports the callback ->atomic_disable,
we may replace the legacy one ->disable with it.

Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Peter Senna Tschudin <peter.senna@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-29 12:45:05 +02:00
Liu Ying
448ae8ea39 gpu: ipu-v3: Do not wait for DMFC FIFO to clear when disabling DMFC channel
According to basic tests, it looks there is no issue if we don't wait for
DMFC FIFO to clear when disabling DMFC channel.  NXP BSP doesn't do that,
either.  This patch is needed to avoid the annoying warning caused by a
timeout on waiting for the FIFO to clear after we add the new
DRM_PLANE_COMMIT_NO_DISABLE_AFTER_MODESET flag to the imx-drm driver
which changes the procedure to disable display channel slightly.

Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Peter Senna Tschudin <peter.senna@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-29 12:45:05 +02:00
Liu Ying
2b58e98d42 drm/atomic-helper: Add NO_DISABLE_AFTER_MODESET flag support for plane commit
Drivers may set the NO_DISABLE_AFTER_MODESET flag in the 'flags' parameter
of the helper drm_atomic_helper_commit_planes() if the relevant display
controllers(e.g., IPUv3 for imx-drm) require to disable a CRTC's planes
when the CRTC is disabled. The helper would skip the ->atomic_disable
call for a plane if the CRTC of the old plane state needs a modesetting
operation. Of course, the drivers need to disable the planes in their CRTC
disable callbacks since no one else would do that.

Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Peter Senna Tschudin <peter.senna@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1472461923-14364-1-git-send-email-gnuiyl@gmail.com
2016-08-29 11:29:37 +02:00
Chris Wilson
8a07fed44b drm/i915/dvo: Remove dangling call to drm_encoder_cleanup()
If we hit the error path, we have never called drm_encoder_init() and so
have nothing to cleanup. Doing so hits a null dereference:

[   10.066261] BUG: unable to handle kernel NULL pointer dereference at 00000104
[   10.066273] IP: [<c16054b4>] mutex_lock+0xa/0x15
[   10.066287] *pde = 00000000
[   10.066295] Oops: 0002 [#1]
[   10.066302] Modules linked in: i915(+) video i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops drm iTCO_wdt iTCO_vendor_support ppdev evdev snd_intel8x0 snd_ac97_codec ac97_bus psmouse snd_pcm snd_timer snd pcspkr uhci_hcd ehci_pci soundcore sr_mod ehci_hcd serio_raw i2c_i801 usbcore i2c_smbus cdrom lpc_ich mfd_core rng_core e100 mii floppy parport_pc parport acpi_cpufreq button processor usb_common eeprom lm85 hwmon_vid autofs4
[   10.066378] CPU: 0 PID: 132 Comm: systemd-udevd Not tainted 4.8.0-rc3-00013-gef0e1ea #34
[   10.066389] Hardware name: MicroLink                               /D865GLC                        , BIOS BF86510A.86A.0077.P25.0508040031 08/04/2005
[   10.066401] task: f62db800 task.stack: f5970000
[   10.066409] EIP: 0060:[<c16054b4>] EFLAGS: 00010286 CPU: 0
[   10.066417] EIP is at mutex_lock+0xa/0x15
[   10.066424] EAX: 00000104 EBX: 00000104 ECX: 00000000 EDX: 80000000
[   10.066432] ESI: 00000000 EDI: 00000104 EBP: f5be8000 ESP: f5971b58
[   10.066439]  DS: 007b ES: 007b FS: 0000 GS: 00e0 SS: 0068
[   10.066446] CR0: 80050033 CR2: 00000104 CR3: 35945000 CR4: 000006d0
[   10.066453] Stack:
[   10.066459]  f503d740 f824dddf 00000000 f61170c0 f61170c0 f82371ae f850f40e 00000001
[   10.066476]  f61170c0 f5971bcc f5be8000 f9c2d401 00000001 f8236fcc 00000001 00000000
[   10.066491]  f5144014 f5be8104 00000008 f9c5267c 00000007 f61170c0 f5144400 f9c4ff00
[   10.066507] Call Trace:
[   10.066526]  [<f824dddf>] ? drm_modeset_lock_all+0x27/0xb3 [drm]
[   10.066545]  [<f82371ae>] ? drm_encoder_cleanup+0x1a/0x132 [drm]
[   10.066559]  [<f850f40e>] ? drm_atomic_helper_connector_reset+0x3f/0x5c [drm_kms_helper]
[   10.066644]  [<f9c2d401>] ? intel_dvo_init+0x569/0x788 [i915]
[   10.066663]  [<f8236fcc>] ? drm_encoder_init+0x43/0x20b [drm]
[   10.066734]  [<f9bf1fce>] ? intel_modeset_init+0x1436/0x17dd [i915]
[   10.066791]  [<f9b37636>] ? i915_driver_load+0x85a/0x15d3 [i915]
[   10.066846]  [<f9b3603d>] ? i915_driver_open+0x5/0x5 [i915]
[   10.066857]  [<c14af4d0>] ? firmware_map_add_entry.part.2+0xc/0xc
[   10.066868]  [<c1343daf>] ? pci_device_probe+0x8e/0x11c
[   10.066878]  [<c140cec8>] ? driver_probe_device+0x1db/0x62e
[   10.066888]  [<c120c010>] ? kernfs_new_node+0x29/0x9c
[   10.066897]  [<c13438e0>] ? pci_match_device+0xd9/0x161
[   10.066905]  [<c120c48b>] ? kernfs_create_dir_ns+0x42/0x88
[   10.066914]  [<c140d401>] ? __driver_attach+0xe6/0x11b
[   10.066924]  [<c1303b13>] ? kobject_add_internal+0x1bb/0x44f
[   10.066933]  [<c140d31b>] ? driver_probe_device+0x62e/0x62e
[   10.066941]  [<c140a2d2>] ? bus_for_each_dev+0x46/0x7f
[   10.066950]  [<c140c502>] ? driver_attach+0x1a/0x34
[   10.066958]  [<c140d31b>] ? driver_probe_device+0x62e/0x62e
[   10.066966]  [<c140b758>] ? bus_add_driver+0x217/0x32a
[   10.066975]  [<f8403000>] ? 0xf8403000
[   10.066982]  [<c140de27>] ? driver_register+0x5f/0x108
[   10.066991]  [<c1000493>] ? do_one_initcall+0x49/0x1f6
[   10.067000]  [<c1082299>] ? pick_next_task_fair+0x14b/0x2a3
[   10.067008]  [<c1603c8d>] ? __schedule+0x15c/0x4fe
[   10.067016]  [<c1604104>] ? preempt_schedule_common+0x19/0x3c
[   10.067027]  [<c11051de>] ? do_init_module+0x17/0x230
[   10.067035]  [<c1604139>] ? _cond_resched+0x12/0x1a
[   10.067044]  [<c116f9aa>] ? kmem_cache_alloc+0x8f/0x11f
[   10.067052]  [<c11051de>] ? do_init_module+0x17/0x230
[   10.067060]  [<c11703dd>] ? kfree+0x137/0x203
[   10.067068]  [<c110523d>] ? do_init_module+0x76/0x230
[   10.067078]  [<c10cadf3>] ? load_module+0x2a39/0x333f
[   10.067087]  [<c10cb8b2>] ? SyS_finit_module+0x96/0xd5
[   10.067096]  [<c1132231>] ? vm_mmap_pgoff+0x79/0xa0
[   10.067105]  [<c1001e96>] ? do_fast_syscall_32+0xb5/0x1b0
[   10.067114]  [<c16086a6>] ? sysenter_past_esp+0x47/0x75
[   10.067121] Code: c8 f7 76 c1 e8 8e cc d2 ff e9 45 fe ff ff 66 90 66 90 66 90 66 90 90 ff 00 7f 05 e8 4e 0c 00 00 c3 53 89 c3 e8 75 ec ff ff 89 d8 <ff> 08 79 05 e8 fa 0a 00 00 5b c3 53 89 c3 85 c0 74 1b 8b 03 83
[   10.067180] EIP: [<c16054b4>] mutex_lock+0xa/0x15 SS:ESP 0068:f5971b58
[   10.067190] CR2: 0000000000000104
[   10.067222] ---[ end trace 049f1f09da45a856 ]---

Reported-by: Meelis Roos <mroos@linux.ee>
Fixes: 580d8ed522 ("drm/i915: Give encoders useful names")
Reviewed-by: David Weinehall <david.weinehall@linux.intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: drm-intel-fixes@lists.freedesktop.org
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20160823092558.14931-1-chris@chris-wilson.co.uk
(cherry picked from commit 8f76aa0ebe)
2016-08-29 12:28:09 +03:00
Liu Ying
28500291c2 drm/atomic-helper: Disable appropriate planes in disable_planes_on_crtc()
Currently, the helper drm_atomic_helper_disable_planes_on_crtc() calls
->atomic_disable for all planes _to be_ enabled on a particular CRTC.
This is obviously wrong for those planes which are not scanning out frames
when the helper is called.  Instead, it's sane to disable active planes
of old_crtc_state in the helper.

Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Peter Senna Tschudin <peter.senna@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1472196644-30563-3-git-send-email-gnuiyl@gmail.com
2016-08-29 10:22:05 +02:00
Liu Ying
c9ac8b4c5c drm/atomic-helper: Add atomic_disable CRTC helper callback
Some display controllers need plane(s) to be disabled together with
the relevant CRTC, e.g., the IPUv3 display controller for imx-drm.
This patch adds atomic_disable CRTC helper callback so that
old_crtc_state(as a parameter of the callback) could be used
to get the active plane(s) of the old CRTC state for disable operation.

Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Peter Senna Tschudin <peter.senna@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1472196644-30563-2-git-send-email-gnuiyl@gmail.com
2016-08-29 10:21:52 +02:00
Jani Nikula
6720ce18d4 drm/i915: remove leftover for_each_intel_crtc_masked
The last user of for_each_intel_crtc_masked macro was removed in

commit 0a9ab303b8
Author: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Date:   Tue Apr 21 17:13:04 2015 +0300

    drm/i915: Remove all *_pipes flags from modeset

Get rid of the unused macro.

Cc: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1472126651-13825-1-git-send-email-jani.nikula@intel.com
2016-08-29 09:50:54 +03:00
Andrea Merello
315486c665 drm: simple_kms_helper: add support for bridges
Introduce drm_simple_display_pipe_attach_bridge() and
drm_simple_display_pipe_detach_bridge() in order to make it possible to use
drm encoders with the simple display pipes managed by simple_kms_helpers

Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Andrea Merello <andrea.merello@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Noralf Trønnes <noralf@tronnes.org>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: David Airlie <airlied@linux.ie>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1472115874-6219-3-git-send-email-andrea.merello@gmail.com
2016-08-29 09:15:37 +05:30
Andrea Merello
4f993973d2 drm: simple_kms_helper: make connector optional at init time
drm_simple_display_pipe_init() pretends to attach a connector
to the display pipe.

In case a drm bridge has to be used, then it's the bridge that
takes care of connectors.

This patch makes the connector parameter optional for
drm_simple_display_pipe_init(), so that a drm bridge could
handle connector by itself later.

Signed-off-by: Andrea Merello <andrea.merello@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: David Airlie <airlied@linux.ie>
Cc: Noralf Trønnes <noralf@tronnes.org>
Cc: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1472115874-6219-2-git-send-email-andrea.merello@gmail.com
2016-08-29 09:13:52 +05:30
Andrea Merello
cf3bef95e1 drm/bridge: introduce bridge detaching mechanism
Up to now, once a bridge has been attached to a DRM device, it cannot
be undone.

In particular you couldn't rmmod/insmod a DRM driver that uses a bridge,
because the bridge would remain bound to the first (dead) driver instance.

This patch fixes this by introducing drm_encoder_detach() and a ->detach
callback in drm_bridge_funcs for the bridge to be notified about detaches.

It's DRM/KMS driver responsibility to call drm_encoder_detach().

While adding the bridge detach callback, with its kerneldoc, I also added
kerneldoc for attach callback.

Few other kerneldocs fixes around there are included.

Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Suggested-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Andrea Merello <andrea.merello@gmail.com>
Cc: Archit Taneja <architt@codeaurora.org>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1472115874-6219-1-git-send-email-andrea.merello@gmail.com
2016-08-29 09:13:00 +05:30
Mario Kleiner
add1fa7510 drm/atomic: Don't potentially reset color_mgmt_changed on successive property updates.
Due to assigning the 'replaced' value instead of or'ing it,
if drm_atomic_crtc_set_property() gets called multiple times,
the last call will define the color_mgmt_changed flag, so
a non-updating call to a property can reset the flag and
prevent actual hw state updates required by preceding
property updates.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: <stable@vger.kernel.org> # v4.6+
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-08-29 06:55:47 +10:00
Rob Clark
d78d383ab3 drm/msm: protect against faults from copy_from_user() in submit ioctl
An evil userspace could try to cause deadlock by passing an unfaulted-in
GEM bo as submit->bos (or submit->cmds) table.  Which will trigger
msm_gem_fault() while we already hold struct_mutex.  See:

https://github.com/freedreno/msmtest/blob/master/evilsubmittest.c

Cc: stable@vger.kernel.org
Signed-off-by: Rob Clark <robdclark@gmail.com>
2016-08-28 12:49:39 -04:00
Rob Clark
89f82cbb0d drm/msm: fix use of copy_from_user() while holding spinlock
Use instead __copy_from_user_inatomic() and fallback to slow-path where
we drop and re-aquire the lock in case of fault.

Cc: stable@vger.kernel.org
Reported-by: Vaishali Thakkar <vaishali.thakkar@oracle.com>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2016-08-28 12:47:46 -04:00