21087 Commits

Author SHA1 Message Date
Hyungwon Hwang
3f46d807f8 drm/exynos: Add the dependency for DRM_EXYNOS to DPI/DSI/DP
Without this dependency, Kbuild is confused and the configs below
them are not placed under Exynos DRM. This patch fixes it, so the
configs below them become to be placed under Exynos DRM.

Signed-off-by: Hyungwon Hwang <human.hwang@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-06-22 19:04:30 +09:00
Hyungwon Hwang
f4137df22a drm/exynos: remove the dependency of DP driver for ARCH_EXYNOS
This dependency is a historical thing. It is added when this DP driver is
under media subsystem. Now because it is under Exynos DRM, this dependency
is not needed anymore.

Signed-off-by: Hyungwon Hwang <human.hwang@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-06-22 19:04:25 +09:00
Takashi Iwai
57fa8a1e22 ASoC: Further updates for v4.2
There's a bunch of additional updates and fixes that came in since my
 orignal pull request here, including DT support for rt5645 and fairly
 large serieses of cleanups and improvements to tas2552 and rcar.
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Merge tag 'asoc-v4.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next

ASoC: Further updates for v4.2

There's a bunch of additional updates and fixes that came in since my
orignal pull request here, including DT support for rt5645 and fairly
large serieses of cleanups and improvements to tas2552 and rcar.
2015-06-22 11:32:41 +02:00
Ander Conselvan de Oliveira
9044a81d1b drm/i915: Silence compiler warning
Silence the following -Wmaybe-uninitialized warnings and make the code
more clear.

drivers/gpu/drm/i915/intel_display.c: In function ‘__intel_set_mode’:
drivers/gpu/drm/i915/intel_display.c:11844:14: warning: ‘crtc_state’ may be used uninitialized in this function [-Wmaybe-uninitialized]
  return state->mode_changed || state->active_changed;
              ^
drivers/gpu/drm/i915/intel_display.c:11854:25: note: ‘crtc_state’ was declared here
  struct drm_crtc_state *crtc_state;
                         ^
drivers/gpu/drm/i915/intel_display.c:11868:6: warning: ‘crtc’ may be used uninitialized in this function [-Wmaybe-uninitialized]
   if (crtc != intel_encoder->base.crtc)
      ^
drivers/gpu/drm/i915/intel_display.c:11853:19: note: ‘crtc’ was declared here
  struct drm_crtc *crtc;

Reported-by: Chris Wilson <chris@chris-wilson.co.uk>
Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2015-06-22 11:56:17 +03:00
Daniel Thompson
ffc5fbdb77 drm: prime: Document gem_prime_mmap
gem_prime_map is not currently described in the DRM manual, lets document
it.

Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-06-19 17:50:05 +02:00
Inki Dae
ad533ade86 drm/exynos: do not wait for vblank at atomic operation
This patch resolves the issue that refresh rate got low
at extension mode test with fimd and vidi combination.

The problem was because atomic_commit callback waited
for the completion of vblank to gaurantee crtc relevant
registers are updated from shadow registers to real ones.

However, the waiting there is really unnecessary because
page flip operation does already it.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-06-20 00:33:02 +09:00
Krzysztof Kozlowski
286bd02230 drm/exynos: Remove unused vma field of exynos_drm_gem_obj
The field 'vma' of 'exynos_drm_gem_obj' structure was introduced in
2a3098ff6c21 ("drm/exynos: add userptr feature for g2d module") but is
not referenced anywhere.

One instance of 'exynos_drm_gem_obj' may be mapped to multiple
user-space VMAs so 'vma' field does not look useful anyway.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-06-20 00:33:01 +09:00
Inki Dae
94ab95a94c drm/exynos: fimd: fix page fault issue with iommu
This patch resolves page fault issue with iommu and atomic feature
when modetest test application is terminated.

ENWIN_F field of WINCONx register enables or disable a dma channel to
each hardware overlay - the value of the field will be updated to real
register after vsync.

So this patch makes sure the dma channel is disabled by waiting for vsync
one time after clearing shadow registers to all dma channels.

Below shows the page fault issue:
setting mode 720x1280-60Hz@XR24 on connectors 31, crtc 29
freq: 59.99Hz

[   34.831025] PAGE FAULT occurred at 0x20400000 by 11e20000.sysmmu(Page
		table base: 0x6e324000)
[   34.838072]  Lv1 entry: 0x6e92dc01
[   34.841489] ------------[ cut here ]------------
[   34.846058] kernel BUG at drivers/iommu/exynos-iommu.c:364!
[   34.851614] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP ARM
[   34.857428] Modules linked in:
<--snip-->
[   35.210894] [<c02880d0>] (exynos_sysmmu_irq) from [<c00608f8>]
(handle_irq_event_percpu+0x78/0x134)
[   35.219914] [<c00608f8>] (handle_irq_event_percpu) from [<c00609f0>]
(handle_irq_event+0x3c/0x5c)
[   35.228768] [<c00609f0>] (handle_irq_event) from [<c0063698>]
(handle_level_irq+0xc4/0x13c)
[   35.237101] [<c0063698>] (handle_level_irq) from [<c005ff7c>]
(generic_handle_irq+0x2c/0x3c)
[   35.245521] [<c005ff7c>] (generic_handle_irq) from [<c02214ec>]
(combiner_handle_cascade_irq+0x94/0x100)
[   35.254980] [<c02214ec>] (combiner_handle_cascade_irq) from
[<c005ff7c>] (generic_handle_irq+0x2c/0x3c)
[   35.264353] [<c005ff7c>] (generic_handle_irq) from [<c0060248>]
(__handle_domain_irq+0x7c/0xec)
[   35.273034] [<c0060248>] (__handle_domain_irq) from [<c0009434>]
(gic_handle_irq+0x30/0x68)
[   35.281366] [<c0009434>] (gic_handle_irq) from [<c0012ec0>]
(__irq_svc+0x40/0x74)

Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-06-20 00:33:00 +09:00
Marek Szyprowski
bcfe4e25aa drm/exynos: iommu: improve a check for non-iommu dma_ops
DRM Exynos driver is relying on dma-mapping internal structures when used
with IOMMU enabled. This patch partially hides dma-mapping internal things
by using proper get_dma_ops/set_dma_ops calls.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-06-20 00:33:00 +09:00
Marek Szyprowski
452868581d drm/exynos: iommu: detach from default dma-mapping domain on init
This patch adds code, which detach sub-device nodes from default iommu
domain if such has been configured. This lets Exynos DRM driver to properly
attach sub-devices to its own, common for all sub-devices domain.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-06-20 00:33:00 +09:00
Marek Szyprowski
fb88e21412 drm/exynos: fimd: ensure proper hw state in fimd_clear_channel()
One should not do any assumptions on the stare of the fimd hardware
during driver initialization, so to properly reset fimd before enabling
IOMMU, one should ensure that all power domains and clocks are really
enabled. This patch adds pm_runtime and clocks management in the
fimd_clear_channel() function to ensure that any access to fimd
registers will be performed with clocks and power domains enabled.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-06-20 00:32:59 +09:00
Joonyoung Shim
b74f14fd5c drm/exynos: initialize VIDCON0 when fimd is disabled
When the fimd is disabled by fimd_disable(), enabled overlay layers also
are disabled. If clocks for fimd are enabled by fimd_enable() on this
case, it can lead IOMMU page fault. The reason is that VIDCON0_ENVID and
VIDCON0_ENVID_F bits of VIDCON0 register are set still even though fimd
is disabled, so it may continue display output of prior when clocks for
fimd are enabled again.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-06-20 00:32:59 +09:00
Joonyoung Shim
c329f667ba drm/exynos: remove chained calls to enable
With atomic modesetting all the control for CRTC, Planes, Encoders and
Connectors should come from DRM core, so the driver is not allowed to
enable or disable planes from inside the crtc_enable()/disable() call.

But it needs to disable planes with crtc_disable in exynos driver
internally. Because crtc is disabled before plane is disabled, it means
plane_disable just returns without any register changes, then we cannot
be sure setting register to disable plane when crtc is disable.

This patch removes this chainned calls to enable plane from exynos hw
drivers code letting only DRM core touch planes except to disable plane.
Also it leads eliminable enabled and resume of struct exynos_drm_plane.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-06-20 00:32:58 +09:00
Joonyoung Shim
ba4b77c485 drm/exynos: remove to call mixer_wait_for_vblank
The reason waiting vblank is to be power gated and disabled clocks after
dma operation is completed. The dma operation is stopped already before
be power gated and clocks are disabled when mixer is disabled by commit
381be025ac1a6("drm/exynos: stop mixer before gating clocks during
poweroff"). Don't need to wait vblank anymore.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-06-20 00:32:58 +09:00
Hyungwon Hwang
3c10473bc8 drm/exynos: ipp: validate a GEM handle with multiple planes
FIMC & GSC driver can calculate the offset of planes. So there are
use cases which IPP receives just one GEM handle of an image with
multiple plane. This patch extends ipp_validate_mem_node() to validate
this case.

Signed-off-by: Hyungwon Hwang <human.hwang@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-06-20 00:32:58 +09:00
Hyungwon Hwang
b224fa9f25 drm/exynos: ipp: fix wrong index referencing a config element
Config depends on the opreation. So it must be referenced by an
operation id, not a property id.

Signed-off-by: Hyungwon Hwang <human.hwang@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-06-20 00:32:57 +09:00
Hyungwon Hwang
0e480f6ffb drm/exynos: dsi: check whether dsi is enabled before sending data
exynos_dsi_host_transfer() can be called through a panel driver while
DSI is turning down. It is possible because the function checks only
whether DSI is initialized or not, and there is a moment which DSI is
set by uninitialized, but DSI is still turning down. To prevent it,
DSI must be set by disabled before starting to be turned down, and
exynos_dsi_host_transfer() must check whether DSI is enabled or not.

Kernel dump:
[ 4721.351448] Unhandled fault: synchronous external abort (0x96000210) at 0xffffff800015e018
[ 4721.351809] Internal error: : 96000210 [#1] PREEMPT SMP
[ 4721.352031] Modules linked in:
[ 4721.352173] CPU: 2 PID: 300 Comm: deviced Tainted: G        W       4.0.4-01017-g7964a87 #1
[ 4721.353989] Hardware name: Samsung DRACO board (DT)
[ 4721.358852] task: ffffffc0a0b70000 ti: ffffffc0a00ec000 task.ti: ffffffc0a00ec000
[ 4721.366327] PC is at exynos_dsi_enable_lane+0x14/0x5c
[ 4721.371353] LR is at exynos_dsi_host_transfer+0x834/0x8d8
[ 4721.376731] pc : [<ffffffc000432bcc>] lr : [<ffffffc000434590>] pstate: 60000145
[ 4721.384107] sp : ffffffc0a00efbe0
[ 4721.387405] x29: ffffffc0a00efbe0 x28: ffffffc0a00ec000
[ 4721.392699] x27: ffffffc000968000 x26: 0000000000000040
[ 4721.397994] x25: ffffffc000f74dc0 x24: ffffffc0a00efec8
[ 4721.403290] x23: ffffffc0a4815400 x22: ffffffc0009f2729
[ 4721.408584] x21: ffffffc0a00efcc8 x20: ffffffc0a4a2a848
[ 4721.413879] x19: ffffffc0a4a2a818 x18: 0000000000000004
[ 4721.419173] x17: 0000007faa5cddf0 x16: ffffffc0001a40a8
[ 4721.424469] x15: 0000000000000009 x14: 000000000000000d
[ 4721.429762] x13: 6e6e6f63206b726f x12: 0000000000000010
[ 4721.435058] x11: 0101010101010101 x10: 0000000000000000
[ 4721.440353] x9 : 000000000000000a x8 : 8386838282818381
[ 4721.445648] x7 : ffffffc0a201efe8 x6 : 0000000000000000
[ 4721.450943] x5 : 00000000fffffffa x4 : ffffffc0a201f170
[ 4721.456237] x3 : ffffff800015e000 x2 : ffffff800015e018
[ 4721.461531] x1 : 000000000000000f x0 : ffffffc0a4a2a818
[ 4721.466826]
[ 4721.468305] Process deviced (pid: 300, stack limit = 0xffffffc0a00ec028)
[ 4721.474989] Stack: (0xffffffc0a00efbe0 to 0xffffffc0a00f0000)
[ 4721.480720] fbe0: a00efca0 ffffffc0 0042c944 ffffffc0 a0f2d680 ffffffc0 00000024 00000000
[ 4721.488895] fc00: a4b6d000 ffffffc0 009f2729 ffffffc0 a4815400 ffffffc0 a00efec8 ffffffc0

Signed-off-by: Hyungwon Hwang <human.hwang@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-06-20 00:32:56 +09:00
Andrzej Hajda
e3b9e4602a drm/exynos: remove SoC checking code
SoC checking code is not necessary anymore, as exynos_drm_match_add and
exynos_drm_platform_probe already properly handles situation when there are
no Exynos DRM components.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Tested-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-06-20 00:32:55 +09:00
Andrzej Hajda
8665040850 drm/exynos: fix broken component binding in case of multiple pipelines
In case there are multiple pipelines and deferred probe occurs, only components
of the first pipeline were bound. As a result only one pipeline was available.
The main cause of this issue was dynamic generation of component match table -
every component driver during probe registered itself on helper list, if there
was at least one pipeline present on this list component match table were
created without deferred components.
This patch removes this helper list, instead it creates match table from
existing devices requiring exynos_drm KMS drivers. This way match table do not
depend on probe/deferral order and contains all KMS components.
As a side effect patch makes the code cleaner and significantly smaller.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-06-20 00:32:55 +09:00
Andrzej Hajda
417133e469 drm/exynos: consolidate driver/device initialization code
Code registering different drivers and simple platform devices was dispersed
across multiple sub-modules. This patch moves it to one place. As a result
initialization code is shorter and cleaner and should simplify further
development.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-06-20 00:32:55 +09:00
Gustavo Padovan
38000dbb71 drm/exynos: add error messages if clks failed to get enabled
Check error and call DRM_ERROR if clk_prepare_enable() fails.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-06-20 00:32:54 +09:00
Inki Dae
1e5507cecb drm/exynos: add a dependency on FB_S3C to DECON driver
This patch makes one of Linux framebuffer and DRM CRTC drivers
to be enabled.

Display controllers, FIMD and DECON, can be controlled by Linux
framebuffer or DRM CRTC drivers so only one of them should be
enabled.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2015-06-20 00:32:54 +09:00
Inki Dae
7491e5b48e drm/exynos: vidi: remove unused varables
This patch removes unnsed varables in vidi_disable function.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2015-06-20 00:32:53 +09:00
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
d6562a291e drm/exynos: add exynos specific .atomic_commit()
exynos needs to update planes with the crtc enabled (mainly for the FIMD
case) so this specific atomic commit changes the order of
drm_atomic_helper_commit_modeset_enables() and
drm_atomic_helper_commit_planes() to commit planes after we enable crtc
and encoders.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-06-20 00:32:51 +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
bbcf7bd640 drm/exynos: don't disable unused functions at init
Everything starts disabled so we don't really need to disable anything.

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
d5f5223c46 drm/exynos: remove exported functions from exynos_drm_plane
Now that no one is using the functions exported by exynos_drm_plane due
to the atomic conversion we can make remove some of the them or make them
static.

v2: remove unused exynos_drm_crtc

v3: fix checkpatch error (reported by Joonyoung)

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
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
910874a8bd drm/exynos: atomic phase 3: atomic updates of planes
Now that phase 1 and 2 are complete we can switch the update/disable_plane
callbacks to their atomic version.

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
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
Joonyoung Shim
020e79de26 drm/exynos: use adjusted_mode of crtc_state instead of mode
Handle changes by removing copy from adjusted_mode to mode as using
adjusted_mode of crtc_state.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-06-20 00:32:47 +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
b744868cd2 drm/exynos: atomic phase 1: use drm_plane_helper_disable()
The atomic helper to disable planes also uses the optional
.atomic_disable() helper. The unique operation it does is calling
.win_disable()

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 00:32:45 +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
Chris Wilson
afcd950caf drm: Avoid the double clflush on the last cache line in drm_clflush_virt_range()
As the clflush operates on cache lines, and we can flush any byte
address, in order to flush all bytes given in the range we issue an
extra clflush on the last byte to ensure the last cacheline is flushed.
We can can the iteration to be over the actual cache lines to avoid this
double clflush on the last byte.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Imre Deak <imre.deak@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-06-19 17:25:17 +02:00
Daniel Vetter
2465ff6217 drm/atomic: Extract needs_modeset function
We use the same check already in the atomic core, so might as well
make this official. And it's also reused in e.g. i915.

Motivated by Maarten's idea to extract a connector_changed state out
of mode_changed.

Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-By: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2015-06-19 17:25:01 +02:00
Dave Airlie
26093813ea Merge tag 'drm-intel-next-fixes-2015-06-18' of git://anongit.freedesktop.org/drm-intel into drm-next
i915 fixes for stuff in next

* tag 'drm-intel-next-fixes-2015-06-18' of git://anongit.freedesktop.org/drm-intel:
  drm/i915: Don't set enabled value of all CRTCs when restoring the mode
  drm/i915: Don't update staged config during force restore modesets
  drm/i915: Don't check modeset state in the hw state force restore path
  drm/i915: Add SCRATCH1 and ROW_CHICKEN3 to the register whitelist.
  drm/i915: Extend the parser to check register writes against a mask/value pair.
  drm/i915: Fix command parser to validate multiple register access with the same command.
  drm/i915: Don't skip request retirement if the active list is empty
2015-06-19 12:01:39 +10:00
Dave Airlie
fcee3c73a2 Merge tag 'drm-intel-fixes-2015-06-18' of git://anongit.freedesktop.org/drm-intel into drm-fixes
one fix, one revert
* tag 'drm-intel-fixes-2015-06-18' of git://anongit.freedesktop.org/drm-intel:
  Revert "drm/i915: Don't skip request retirement if the active list is empty"
  drm/i915: Always reset vma->ggtt_view.pages cache on unbinding
2015-06-19 11:58:39 +10:00
Hans de Goede
da882e5acb drm: i915: Port to new backlight interface selection API
This results in a nice cleanup, as we can replace the complicated logic
from should_ignore_backlight_request() with a simple check for the type
being native.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-06-19 01:10:54 +02:00
Dave Airlie
7f017e5677 drm/radeon: don't probe MST on hw we don't support it on
If you do radeon.mst=1 on a gpu without mst hw, and then
plug some mst hw it will oops instead of falling back.

So check we have DCE5 at least before proceeding.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
2015-06-18 20:36:56 +02:00
Michel Dänzer
3bc980bf19 drm/radeon: Add RADEON_INFO_VA_UNMAP_WORKING query
This tells userspace that it's safe to use the RADEON_VA_UNMAP operation
of the DRM_RADEON_GEM_VA ioctl.

Cc: stable@vger.kernel.org
(NOTE: Backporting this commit requires at least backports of commits
26d4d129b6042197b4cbc8341c0618f99231af2f,
48afbd70ac7b6aa62e8d452091023941d8085f8a and
c29c0876ec05d51a93508a39b90b92c29ba6423d as well, otherwise using
RADEON_VA_UNMAP runs into trouble)

Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
2015-06-18 20:36:56 +02:00
Russell King
86f5e73304 GPU: ipu: Fix race in installing IPU chained IRQ handler
The IPU code was installing its chained interrupt handler (which enables
the interrupt) before it was setting its data, which provokes an oops on
kexec.  Fix this by converting to irq_set_chained_handler_and_data().

[drm] Initialized drm 1.1.0 20060810
imx-drm display-subsystem: parent device of /soc/aips-bus@02000000/ldb@020e0008/lvds-channel@1 is not available
imx-drm display-subsystem: parent device of /soc/aips-bus@02000000/ldb@020e0008/lvds-channel@1 is not available
Unable to handle kernel NULL pointer dereference at virtual address 00000070
pgd = c0004000
[00000070] *pgd=00000000
Internal error: Oops: 5 [#1] SMP ARM
Modules linked in:
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.1.0-rc6+ #1693
Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree)
task: d74c0000 ti: d74aa000 task.ti: d74aa000
PC is at ipu_irq_handle+0x28/0xd8
LR is at ipu_irq_handler+0x6c/0xc0
pc : [<c03c56d8>]    lr : [<c03c58a4>]    psr: 200001d3
sp : d74abbd0  ip : d74abc00  fp : d74abbfc
r10: 000001e0  r9 : c0085154  r8 : 00000009
r7 : 00000000  r6 : 00000000  r5 : d74abc04  r4 : c0a6b6a8
r3 : 00000000  r2 : 00000009  r1 : d74abc04  r0 : 00000000
Flags: nzCv  IRQs off  FIQs off  Mode SVC_32  ISA ARM  Segment kernel
Control: 10c5387d  Table: 10004059  DAC: 00000015
Process swapper/0 (pid: 1, stack limit = 0xd74aa210)
Stack: (0xd74abbd0 to 0xd74ac000)
Backtrace:
[<c03c56b0>] (ipu_irq_handle) from [<c03c58a4>] (ipu_irq_handler+0x6c/0xc0)
[<c03c5838>] (ipu_irq_handler) from [<c0080154>] (generic_handle_irq+0x28/0x38)
[<c008012c>] (generic_handle_irq) from [<c0080288>] (__handle_domain_irq+0x5c/0xb8)
[<c008022c>] (__handle_domain_irq) from [<c0009428>] (gic_handle_irq+0x28/0x68)
[<c0009400>] (gic_handle_irq) from [<c0013dc4>] (__irq_svc+0x44/0x5c)
[<c07638fc>] (_raw_spin_unlock_irqrestore) from [<c00803bc>] (__irq_put_desc_unlock+0x1c/0x40)
[<c00803a0>] (__irq_put_desc_unlock) from [<c00841f4>] (__irq_set_handler+0x54/0x5c)
[<c00841a0>] (__irq_set_handler) from [<c03c5f48>] (ipu_probe+0x29c/0x708)
[<c03c5cac>] (ipu_probe) from [<c03d3848>] (platform_drv_probe+0x50/0xac)
[<c03d37f8>] (platform_drv_probe) from [<c03d1f3c>] (driver_probe_device+0x1d4/0x278)

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/E1Z4z02-0002SI-Br@rmk-PC.arm.linux.org.uk
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-06-18 14:03:08 +02:00
Dave Airlie
0dc499aff5 Merge branch 'virtio-gpu-drm-next' of git://git.kraxel.org/linux into drm-next
fixes and virtio-vga support.

* 'virtio-gpu-drm-next' of git://git.kraxel.org/linux:
  virtio-gpu: add locking for vbuf pool
  drm/virtgpu: initialise fbdev after getting initial display info
  Add virtio-vga bits.
2015-06-18 13:01:04 +10:00
Dave Airlie
2aeab6884b drm/panel: Changes for v4.2-rc1
This contains fixes for the long-standing build issues that some of the
 bridge drivers were exposing. Other than that it's mostly cleanup and a
 couple of new simple panels that are supported.
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Merge tag 'drm/panel/for-4.2-rc1' of git://anongit.freedesktop.org/tegra/linux into drm-next

drm/panel: Changes for v4.2-rc1

This contains fixes for the long-standing build issues that some of the
bridge drivers were exposing. Other than that it's mostly cleanup and a
couple of new simple panels that are supported.

* tag 'drm/panel/for-4.2-rc1' of git://anongit.freedesktop.org/tegra/linux:
  drm/panel: simple: Add bus format for HannStar HSD100PXN1
  drm/panel: simple: Add display timing for HannStar HSD100PXN1
  drm/panel: ld9040: Remove useless padding
  drm/panel: Constify OF match tables
  drm/bridge: Remove stale ptn3460.h include
  drm/bridge: ps8622: Include linux/gpio/consumer.h
  drm/bridge: ptn3460: Include linux/gpio/consumer.h
  drm/bridge: dw-hdmi: Return number of EDID modes
  drm/panel: simple: Add support for LG LB070WV8 800x480 7" panel
  drm/bridge: ptn3460: Pass flags to devm_gpiod_get()
  drm/bridge: ps8622: Pass flags to devm_gpiod_get()
  drm/bridge: ptn3460: Fix I2C ID table to match the reported modalias
  drm/bridge: dw-hdmi: Staticize dw_hdmi_bridge_funcs
2015-06-18 12:55:03 +10:00