Commit Graph

112 Commits

Author SHA1 Message Date
Andrzej Hajda
fc173ae6dd drm/exynos: fix cancel page flip code
Driver code did not remove event from the list of pending events before destroy.
As a result drm core later tried to inspect invalid memory location.
The patch replaces removal code with call to core helper.

The bug was detected using KASAN:

[   10.107249] ==================================================================
[   10.107518] BUG: KASAN: use-after-free in drm_release+0xe9c/0x1000 at addr ffffffc089154a18
[   10.107784] Read of size 8 by task modetest/103
[   10.107931] =============================================================================
[   10.113191] BUG kmalloc-128 (Not tainted): kasan: bad access detected
[   10.119608] -----------------------------------------------------------------------------
[   10.119608]
[   10.129243] Disabling lock debugging due to kernel taint
[   10.134551] INFO: Allocated in drm_mode_page_flip_ioctl+0x500/0xa98 age=4 cpu=0 pid=103
[   10.142532] 	alloc_debug_processing+0x18c/0x198
[   10.147043] 	___slab_alloc.constprop.28+0x360/0x380
[   10.151906] 	__slab_alloc.isra.25.constprop.27+0x54/0xa0
[   10.157197] 	kmem_cache_alloc_trace+0x370/0x3b0
[   10.161709] 	drm_mode_page_flip_ioctl+0x500/0xa98
[   10.166400] 	drm_ioctl+0x4c4/0xb68
[   10.169787] 	do_vfs_ioctl+0x16c/0xeb8
[   10.173429] 	SyS_ioctl+0x8c/0xa0
[   10.176642] 	el0_svc_naked+0x24/0x28
[   10.180204] INFO: Freed in exynos_drm_crtc_cancel_page_flip+0xe0/0x160 age=0 cpu=0 pid=103
[   10.188447] 	free_debug_processing+0x174/0x388
[   10.192871] 	__slab_free+0x2e8/0x438
[   10.196431] 	kfree+0x350/0x360
[   10.199469] 	exynos_drm_crtc_cancel_page_flip+0xe0/0x160
[   10.204762] 	exynos_drm_preclose+0x58/0xa0
[   10.208844] 	drm_release+0x1f0/0x1000
[   10.212491] 	__fput+0x1c4/0x5b8
[   10.215613] 	____fput+0xc/0x18
[   10.218654] 	task_work_run+0x130/0x198
[   10.222385] 	do_exit+0x700/0x2278
[   10.225681] 	do_group_exit+0xe4/0x2c8
[   10.229327] 	SyS_exit_group+0x1c/0x20
[   10.232973] 	el0_svc_naked+0x24/0x28
[   10.236532] INFO: Slab 0xffffffbdc2a45500 objects=32 used=10 fp=0xffffffc089154a00 flags=0x4080
[   10.245210] INFO: Object 0xffffffc089154a00 @offset=2560 fp=0xffffffc089157600
[   10.245210]
...
[   10.384532] CPU: 0 PID: 103 Comm: modetest Tainted: G    B           4.5.0-rc3-00748-gd5e2881 #271
[   10.398325] Call trace:
[   10.400764] [<ffffffc000091428>] dump_backtrace+0x0/0x328
[   10.406141] [<ffffffc000091764>] show_stack+0x14/0x20
[   10.411176] [<ffffffc00089c550>] dump_stack+0xb0/0xe8
[   10.416210] [<ffffffc000395778>] print_trailer+0xf8/0x160
[   10.421592] [<ffffffc00039b5cc>] object_err+0x3c/0x50
[   10.426626] [<ffffffc00039d630>] kasan_report_error+0x248/0x550
[   10.432527] [<ffffffc00039da50>] __asan_report_load8_noabort+0x40/0x48
[   10.439039] [<ffffffc000b5b724>] drm_release+0xe9c/0x1000
[   10.444419] [<ffffffc0003d340c>] __fput+0x1c4/0x5b8
[   10.449280] [<ffffffc0003d3884>] ____fput+0xc/0x18
[   10.454055] [<ffffffc000101aa8>] task_work_run+0x130/0x198
[   10.459522] [<ffffffc0000bc058>] do_exit+0x700/0x2278
[   10.464557] [<ffffffc0000bdcfc>] do_group_exit+0xe4/0x2c8
[   10.469939] [<ffffffc0000bdefc>] SyS_exit_group+0x1c/0x20
[   10.475320] [<ffffffc000087530>] el0_svc_naked+0x24/0x28

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-05-10 23:11:41 +09:00
Andrzej Hajda
2701932899 drm/exynos: add helper to get crtc from pipe
The helper abstracts out conversion from pipeline
to crtc. Currently it is used in two places, but
there will be more uses in next patches.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 01:04:22 +09:00
Inki Dae
c74d8eb564 drm/exynos: fix kernel panic issue at drm releasing
This patch fixes a kernel panic issue which happened
when drm driver is closed while modetest.

This issue could be reproduced easily by launching modetest
with page flip repeatedly.

The reason is that invalid drm_file object could be accessed by
send_vblank_event function when finishing page flip if the drm_file
object was removed by drm_release and there was a pended page
flip event which was already committed to hardware.

So this patch makes the pended page flip event to be cancelled by
preclose callback which is called at front of drm_release function.

Changelog v2:
- free vblank event objects belonging to the request process,
  increment event space and decrease pending_update when cancelling
  the event

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Acked-by: Daniel Vetter <daniel@ffwll.ch>
2016-01-13 00:16:39 +09:00
Inki Dae
d619894cf5 drm/exynos: crtc: do not wait for the scanout completion
This patch removes exynos_drm_crtc_complete_scanout function call
which makes sure for overlay data to be updated to real hardware
when drm driver is released.

With atomic modeset support, it doesn't need the funtion anymore
because atomic modeset interface makes sure that.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-01-13 00:16:38 +09:00
Marek Szyprowski
d29c2c1407 drm/exynos: crtc: rework atomic_{begin,flush}
Some CRTC drivers (like Exynos DRM Mixer) can handle blocking register
updates only on per-device level, not per-plane level. This patch changes
exynos_crts atomic_begin/atomic_flush callbacks to handle the entire crtc,
instead of given planes, so driver can handle both cases on their own.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-01-13 00:16:37 +09:00
Dave Airlie
20f8e032e6 Backmerge drm-fixes merge into Linus's tree into drm-next.
This merges '5b726e06d6e8309e5c9ef4109a32caf27c71dfc8' into drm-next

Just to resolve some merges to make Daniel's life easier.

Signed-off-by: DAve Airlie <airlied@redhat.com>
2015-12-24 08:08:47 +10:00
Andrzej Hajda
c4e074074c drm/exynos: atomic check only enabled crtc states
Since atomic check is called also for disabled crtcs it should skip
mode checking as it can be uninitialized. The patch fixes it.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-12-20 01:39:10 +09:00
Ville Syrjälä
800ba2b581 drm/exynos: Constify function pointer structs
Moves a bunch of junk to .rodata from .data.

 drivers/gpu/drm/exynos/exynosdrm.ko:
-.text                       125792
+.text                       125788
-.rodata                      10972
+.rodata                      11748
-.data                         6720
+.data                         5944

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1450178476-26284-19-git-send-email-boris.brezillon@free-electrons.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-12-15 13:44:56 +01:00
Ville Syrjälä
f98828769c drm: Pass 'name' to drm_crtc_init_with_planes()
Done with coccinelle for the most part. However, it thinks '...' is
part of the semantic patch, so I put an 'int DOTDOTDOT' placeholder
in its place and got rid of it with sed afterwards.

I didn't convert drm_crtc_init() since passing the varargs through
would mean either cpp macros or va_list, and I figured we don't
care about these legacy functions enough to warrant the extra pain.

@@
identifier dev, crtc, primary, cursor, funcs;
@@
 int drm_crtc_init_with_planes(struct drm_device *dev,
                               struct drm_crtc *crtc,
                               struct drm_plane *primary, struct drm_plane *cursor,
                               const struct drm_crtc_funcs *funcs
+                              ,const char *name, int DOTDOTDOT
                               )
{ ... }

@@
identifier dev, crtc, primary, cursor, funcs;
@@
 int drm_crtc_init_with_planes(struct drm_device *dev,
                               struct drm_crtc *crtc,
                               struct drm_plane *primary, struct drm_plane *cursor,
                               const struct drm_crtc_funcs *funcs
+                              ,const char *name, int DOTDOTDOT
                               );

@@
expression E1, E2, E3, E4, E5;
@@
 drm_crtc_init_with_planes(E1, E2, E3, E4, E5
+                          ,NULL
                           )

v2: Split crtc and plane changes apart
    Pass NULL for no-name instead of ""
    Leave drm_crtc_init() alone
v3: Add ', or NULL...' to @name kernel doc (Jani)
    Annotate the function with __printf() attribute (Jani)

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1449670771-2751-1-git-send-email-ville.syrjala@linux.intel.com
2015-12-11 09:12:44 +01:00
Andrzej Hajda
5625b3418a drm/exynos: add atomic_check callback to exynos_crtc
Some CRTCs needs mode validation, this patch adds neccessary
callback to Exynos DRM framework. It is called from DRM core
via atomic_check helper for drm_crtc.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-11-03 11:46:37 +09:00
Dave Airlie
48f87dd146 Merge commit '06d1ee32a4d25356a710b49d5e95dbdd68bdf505' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into drm-next
Backmerge the drm-fixes pull from Linus's tree into drm-next.

This is to fix some conflicts and make future pulls cleaner
2015-10-16 10:25:28 +10:00
Thierry Reding
88e72717c2 drm/irq: Use unsigned int pipe in public API
This continues the pattern started in commit cc1ef118fc ("drm/irq:
Make pipe unsigned and name consistent"). This is applied to the public
APIs and driver callbacks, so pretty much all drivers need to be updated
to match the new prototypes.

Cc: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Jianwei Wang <jianwei.wang.chn@gmail.com>
Cc: Alison Wang <alison.wang@freescale.com>
Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Mark Yao <mark.yao@rock-chips.com>
Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Cc: Vincent Abriou <vincent.abriou@st.com>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-10-06 12:57:47 +02:00
Gustavo Padovan
10d97d5869 drm/exynos: remove unused mode_fixup() code
CRTC's mode_fixup() isn't used anymore in exynos, remove it.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-09-30 17:05:11 +09:00
Gustavo Padovan
7cf23eaf0d drm/exynos: remove wait queue for pending page flip
Exynos atomic commit procedures already does this job of waiting for
pending updates to finish, that means using pending_flip_queue is
pointless now because the disable CRTC procedure will never happen
during a page_flip.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-08-31 00:27:38 +09:00
Gustavo Padovan
c4533665d8 drm/exynos: wait all planes updates to finish
Add infrastructure to wait for all planes updates to finish by using
an atomic_t variable to track how many pending updates we are waiting
plus a wait_queue for the wait part.

It also changes vblank behaviour and keeps it enabled for all types
of updates

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-08-31 00:27:38 +09:00
Gustavo Padovan
822f6dfd71 drm/exynos: check for pending fb before finish update
The current code was ignoring the end of update for all overlay planes,
caring only for the primary plane update in case of pageflip.

This change adds a change to start to check for pending updates for all
planes through exynos_plane->pending_fb. At the start of plane update the
pending_fb is set with the fb to be shown on the screen. Then only when to
fb is already presented in the screen we set pending_fb to NULL to
signal that the update was finished.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

fixup! drm/exynos: check for pending fb before finish update
2015-08-31 00:27:37 +09:00
Gustavo Padovan
d9220d4733 drm/exynos: add prepare and cleanup phases for planes
From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

.prepare_plane() and .cleanup_plane() allows to perform extra operations
before and after the update of planes. For FIMD for example this will
be used to enable disable the shadow protection bit.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-08-31 00:27:36 +09:00
Gustavo Padovan
bb0fa93523 drm/exynos: don't track enabled state at exynos_crtc
struct drm_crtc already stores the enabled state of the crtc
thus we don't need to replicate enabled in exynos_drm_crtc.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-08-31 00:27:36 +09:00
Gustavo Padovan
2b8376c803 drm/exynos: remove struct exynos_drm_encoder layer
struct exynos_drm_encoder was justing wrapping struct drm_encoder, it had
only a drm_encoder member and the internal exynos_drm_encoders ops that
was directly mapped to the drm_encoder helper funcs.

So now exynos DRM uses struct drm_encoder directly, this removes
completely the struct exynos_drm_encoder.

v2: add empty .mode_fixup() and .mode_set() to DSI and DPI to avoid null
pointer.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-08-16 10:35:54 +09:00
Gustavo Padovan
cf67cc9a29 drm/exynos: remove struct exynos_drm_display
This struct was just representing encoder information, it was a member of
struct exynos_drm_encoder, so any code trying to access encoder data would
have to go through the encoder struct, get the display struct and then get
the data it want.

During this patchset we also realized that the only data
exynos_drm_encoder needs to store is the drm_encoder parent and the
exynos_drm_encoder_ops.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-08-16 10:23:36 +09:00
Gustavo Padovan
08dd20099f drm/exynos: return return value of exynos_crtc->enable_vblank
Instead of blindly ignore the return value of enable_vblank return it
to the upper DRM layer for error handling.

Suggested-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-08-16 10:23:35 +09:00
Gustavo Padovan
eafd540aea drm/exynos: use KMS version of DRM vblanks functions
Get rid of legacy DRM vblank function that are less clear to use.
The new ones basically requires only the crtc as parameters.

It also clean ups exynos_drm_crtc_finish_pageflip() parameters as a
consequence.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-08-16 10:23:34 +09:00
Gustavo Padovan
451a8c0c59 drm/exynos: pass the correct pipe number
Instead of giving -1 to as arg to  drm_send_vblank_event() pass the
correct pipe number to it.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-08-16 10:23:34 +09:00
Maarten Lankhorst
613d2b2721 drm/atomic: pass old crtc state to atomic_begin/flush.
In intel it's useful to keep track of some state changes with old
crtc state vs new state, for example to disable initial planes or
when a modeset's prevented during fastboot.

Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com>
[danvet: squash in fixup for exynos provided by Maarten.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-07-27 16:23:22 +02:00
Gustavo Padovan
3cecda030f drm/exynos: split exynos_crtc->dpms in enable() and disable()
To follow more closely the new atomic API we split the dpms()
helper into the enable() and disable() helper to get exactly the
same semantics.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-06-20 00:32:53 +09:00
Gustavo Padovan
c4d96f1689 drm/exynos: remove unnecessary calls to disable_plane()
The planes are already disabled by the drm_atomic_helper_commit() code
so we don't need to disable the in these two places.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
Tested-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-06-20 00:32:53 +09:00
Gustavo Padovan
63498e3065 drm/exynos: atomic dpms support
Run dpms operations through the atomic intefaces. This basically removes
the .dpms() callback from econders and crtcs and use .disable() and
.enable() to turn the crtc on and off.

v2: Address comments by Joonyoung:
	- make hdmi code call ->disable() instead of ->dpms()
	- do not use WARN_ON on crtc enable/disable

v3: - Fix build failure after the hdmi change in v2
    - Change dpms helper of ptn3460 bridge

v4: - remove win_commit() call from .enable()

v5: - move .atomic_check() to the atomic PageFlip patch, and transform it
in .atomic_begin()

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
Tested-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-06-20 00:32:52 +09:00
Gustavo Padovan
3fc4867c5d drm/exynos: move exynos_drm_crtc_disable()
This is a preparation commit to move exynos_drm_crtc_disable() together
with the future exynos_drm_crtc_enable() that will come from the split of
exynos_drm_crtc_dpms() callback.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-06-20 00:32:50 +09:00
Gustavo Padovan
9d5ab6a0ff drm/exynos: atomic phase 3: convert page flips
PageFlips now use the atomic helper to work through the atomic modesetting
API. Async page flips are not supported yet.

v2: Add .atomic_begin() step to handle the vblank part we removed from
exynos page_flip code.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
Tested-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-06-20 00:32:49 +09:00
Gustavo Padovan
47a7deff36 drm/exynos: atomic phase 3: use atomic .set_config helper
Now that phase 1 and 2 are complete switch .set_config helper to
use the atomic one.

v2: also remove .prepare() callback

v3: remove .mode_set() and .mode_set_base() and encoder's
.prepare() callbacks

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
Tested-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-06-20 00:32:49 +09:00
Gustavo Padovan
7cf1ff2571 drm/exynos: atomic phase 2: keep track of framebuffer pointer
Use drm_atomic_set_fb_for_plane() in the legacy page_flip path to keep
track of the framebuffer pointer and reference.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
Tested-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-06-20 00:32:48 +09:00
Gustavo Padovan
4ea9526b09 drm/exynos: atomic phase 2: wire up state reset(), duplicate() and destroy()
Set CRTC, planes and connectors to use the default implementations from
the atomic helper library. The helpers will work to keep track of state
for each DRM object.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
Tested-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-06-20 00:32:48 +09:00
Gustavo Padovan
199329cb37 drm/exynos: atomic phase 1: add .mode_set_nofb() callback
The new atomic infrastructure needs the .mode_set_nofb() callback to
update CRTC timings before setting any plane.

v2: remove WARN_ON(!crtc->state) from mode_set_nofb

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
Tested-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-06-20 00:32:46 +09:00
Gustavo Padovan
43dbdad2a9 drm/exynos: atomic phase 1: use drm_plane_helper_update()
Rip out the check from exynos_update_plane() and create
exynos_check_plane() for the check phase enabling use to use
the atomic helpers to call our check and update phases when updating
planes.

Update all users of exynos_update_plane() accordingly to call
exynos_check_plane() before.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
Tested-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>y
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-06-20 00:32:44 +09:00
Joonyoung Shim
afaf848dc7 drm/exynos: fix source data argument for plane
The exynos_update_plane function needs 16.16 fixed point source data.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-06-20 00:32:44 +09:00
Krzysztof Kozlowski
f3aaf76244 drm/exynos: Constify exynos_drm_crtc_ops
The Exynos DRM code does not modify the ops provided by CRTC driver in
exynos_drm_crtc_create() call.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Tested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-05-19 22:50:53 +09:00
Mandeep Singh Baines
e752747b98 drm/exynos: track vblank events on a per crtc basis
The goal of the change is to make sure we send the vblank event on the
current vblank. My hope is to fix any races that might be causing flicker.
After this change I only see a flicker in the transition plymouth and
X11.

Simplified the code by tracking vblank events on a per-crtc basis. This
allowed me to remove all error paths from the callback. It also allowed
me to remove the vblank wait from the callback.

Signed-off-by: Mandeep Singh Baines <msb@chromium.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-04-13 11:39:40 +09:00
Gustavo Padovan
7ee14cdcbc drm/exynos: remove struct *_win_data abstraction on planes
struct {fimd,mixer,vidi}_win_data was just keeping the same data
as struct exynos_drm_plane thus get ride of it and use exynos_drm_plane
directly.

It changes how planes are created and remove .win_mode_set() callback
that was only filling all *_win_data structs.

v2: check for return of exynos_plane_init()

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-04-13 11:39:39 +09:00
Joonyoung Shim
f27829a184 drm/exynos: remove mode property of exynos crtc
This was added by commit 3b8d1cf818 ("drm/exynos: add property for
crtc mode"). Currently we can control a plane used for crtc using
primary plane by universal plane feature. Stop to use non-standard
property to control primary plane.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-02-09 23:56:34 +09:00
Gustavo Padovan
30b39f0488 drm/exynos: Remove exynos_plane_dpms() call with no effect
exynos_plane_dpms(DRM_MODE_DPMS_ON) calls the win_enable()'s callback
from the underlying layer. However neither one of these layers implement
win_enable() - FIMD, Mixer and VIDI. Thus the call to exynos_plane_dpms()
is pointless.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-02-09 23:56:22 +09:00
Gustavo Padovan
adf5691c33 drm/exynos: create exynos_check_plane()
Split update plane in two parts, an initial check part that can fail
and the update part that can't fail.

This is a important step for the upcoming atomic modesetting support.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-01-25 21:28:08 +09:00
Gustavo Padovan
a8dc5ed67f drm/exynos: don't duplicate drm_display_mode in fimd context
We can safely use the mode stored in the crtc.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-01-25 21:28:08 +09:00
Gustavo Padovan
93bca243ec drm/exynos: remove struct exynos_drm_manager
exynos_drm_manager was just a redundant struct to represent the crtc as
well. In this commit we merge exynos_drm_manager into exynos_drm_crtc to
remove an unnecessary level of indirection easing the understand of the
flow on exynos.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-01-25 21:28:07 +09:00
Gustavo Padovan
eb88e422c5 drm/exynos: remove drm_dev from struct exynos_drm_manager
manager-drm_dev is only accessed by exynos_drm_crtc_create() so this patch
pass drm_dev as argument on exynos_drm_crtc_create() and remove it from
struct exynos_drm_manager.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-01-25 21:28:07 +09:00
Gustavo Padovan
5d1741ad4b drm/exynos: move 'type' from manager to crtc struct
'type' is now part of the struct exynos_drm_crtc. This is just another
step in the struct exynos_drm_manager removal.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-01-25 21:28:07 +09:00
Gustavo Padovan
8a326edda4 drm/exynos: remove pipe member of struct exynos_drm_manager
It is not longer used. This is part of the process of removing
struct exynos_drm_manager entirely.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-01-25 21:28:07 +09:00
Gustavo Padovan
e09f2b0d95 drm/exynos: add pipe param to exynos_drm_crtc_create()
Get the pipe value from a parameter instead of getting it from
manager->pipe. We are removing manager->pipe.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-01-25 21:28:06 +09:00
Gustavo Padovan
357193cd78 drm/exynos: rename base object of struct exynos_drm_crtc to 'base'
'base' is more widely used name in the drm subsystem for the base object.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-01-25 21:28:06 +09:00
Gustavo Padovan
fd092d7a11 drm/exynos: remove exynos_drm_crtc_mode_set_commit()
This was just as extra chain in the call stack. We just rename it to
_set_base() and let it do everything alone.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-01-25 21:28:06 +09:00
Gustavo Padovan
8b9c450503 drm/exynos: call exynos_update_plane() directly on page flips
Avoid an extra call to exynos_drm_crtc_mode_set_commit() that only calls
exynos_update_plane().

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-01-25 21:28:05 +09:00