Now that the IRQ list is used for IRQ wait only we can merge
omap_drm_irq and omap_irq_wait and simplify the implementation.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The function is only used in omap_irq.c and is just a wrapper around
dispc_mgr_get_vsync_irq(). Remove it and call the dispc function
directly.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The IRQ wait functions are called from the DSS enable and disable
operations only, where the DISPC is guaranteed to be enabled. There's no
need for manual DISPC power management there.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The only omap_drm_irq handler doesn't use the irqstatus parameter passed
to the function. Remove it.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The IRQ registration functions are not used outside of their compilation
unit, make them static. As the __omap_irq_(un)register() functions are
only called by their omap_irq_(un)register() counterparts, merge them
together.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Instead of going through a complicated private IRQ registration
mechanism, handle the vblank interrupt activation with the standard
drm_crtc_vblank_get() and drm_crtc_vblank_put() mechanism. This will let
the DRM core keep the vblank interrupt enabled as long as needed to
update the frame counter.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The CRTC pending flag will need to be accessed atomically in the vblank
interrupt handler, memory barriers won't be enough to protect it. Use a
spinlock instead.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The vblank interrupt is disabled after one occurrence, preventing the
atomic update event from being processed twice. However, this also
prevents the software frame counter from being updated correctly that
would require vblank interrupts to be kept enabled while the CRTC is
active.
In preparation for vblank interrupt fixes, make sure that the atomic
update event will be processed once only when the vblank interrupt will
be kept enabled.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The omapdrm DSS manager enable/disable operations check the DSS manager
state to avoid double enabling/disabling. Check the CRTC software state
instead to decrease the dependency of the DRM layer to the DSS layer.
The dispc_mgr_is_enabled() function then be turned into a static
function, but needs to be moved up in its compilation unit to avoid a
forward declaration.
Add a WARN_ON to catch double enable or disable that should be prevented
by the DRM core and would be a clear sign of a bug. The warning should
eventually be removed.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The DRM core supports skipping plane update for inactive CRTCs for
hardware that don't need it or can't cope with it. That's our case, and
the driver already skips flushing planes on inactice CRTCs.
We can't remove the check from the driver, as active CRTCs are disabled
at the hardware level when an atomic flush is performed if a mode set is
pending. There's however no need to forward the plane commit calls to
the driver, so use the DRM core infrastructure to skip them with a
detailed comment to explain why the check must still be kept in the
driver.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Instead of conditioning planes update based on the DSS manager hardware
state, use the enabled field newly added to the omap_crtc structure.
This reduces the dependency from the DRM layer to the DSS layer.
The enabled field is a transitory measure, the implementation should use
the CRTC atomic state instead. However, given that CRTCs are currently
not enabled/disabled through their .enable() and .disable() operations
but through a convoluted code paths starting at the associated encoder
operations, there is not clear guarantee that the atomic state always
matches the hardware state. This will be refactored later, at which
point the enabled field will be removed.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Instead of going through a complicated registration mechanism, just
call the OCP error IRQ handler directly from the main IRQ handler.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Instead of going through a complicated registration mechanism, just
expose the CRTC error IRQ function and call it directly from the main
IRQ handler.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
As the FIFO underflow IRQ handler just prints an error message to the
kernel log, simplify the code by not registering one IRQ handler per
plane but print the messages directly from the main IRQ handler.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Don't print userspace parameters validation failures as error messages
to avoid giving userspace the ability to flood the kernel log.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The hardware requires all planes to have an identical pitch in number of
pixels. Given that all supported formats use the same number of bytes
per pixel in all planes, framebuffer creation checks can be simplified.
The implementations assumes that no format use more than two planes
which is true with the existing hardware.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Merge the single-user objects_lookup inline function into its caller,
allowing reuse of the error code path.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The driver stores in a custom structure named format several pieces of
information about the format that are available in the DRM core. Remove
them and get the information from the DRM core instead.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The only multi-planar format supported by the driver is NV12, there will
thus never be more than two planes per framebuffer.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
- Regression fix from atomic conversion (rotation on the original G80).
- Concurrency fix when clearing compression tags.
- Fixes DP link training issues on GP102/4/6.
- Fixes backlight handling in the presence of Apple GMUX.
- Improvements to GPU error recovery in a number of scenarios.
- GP106 support.
* 'linux-4.10' of git://github.com/skeggsb/linux:
drm/nouveau/kms/nv50: fix atomic regression on original G80
drm/nouveau/bl: Do not register interface if Apple GMUX detected
drm/nouveau/bl: Assign different names to interfaces
drm/nouveau/bios/dp: fix handling of LevelEntryTableIndex on DP table 4.2
drm/nouveau/ltc: protect clearing of comptags with mutex
drm/nouveau/gr/gf100-: handle GPC/TPC/MPC trap
drm/nouveau/core: recognise GP106 chipset
drm/nouveau/ttm: wait for bo fence to signal before unmapping vmas
drm/nouveau/gr/gf100-: FECS intr handling is not relevant on proprietary ucode
drm/nouveau/gr/gf100-: properly ack all FECS error interrupts
drm/nouveau/fifo/gf100-: recover from host mmu faults
This has a couple of fixes for IOMMU support and some fixes for error
handling.
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Merge tag 'drm/tegra/for-4.10-rc1' of git://anongit.freedesktop.org/tegra/linux into drm-next
drm/tegra: Changes for v4.10-rc1
This has a couple of fixes for IOMMU support and some fixes for error
handling.
* tag 'drm/tegra/for-4.10-rc1' of git://anongit.freedesktop.org/tegra/linux:
drm/tegra: Set sgt pointer in BO pin
drm/tegra: Support kernel mappings with IOMMU
gpu: host1x: Add locking to syncpt
gpu: host1x: Store device address to all bufs
drm/tegra: gem: Remove some dead code
drm/tegra: sor: No need to free devm_ allocated memory
drm/tegra: Fix error handling
drm/tegra: dpaux: Fix error handling
This adds support for a couple more panels to the simple-panel driver.
There is also a fix for a long-standing bug, but it's not critical since
no code will currently trigger it.
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Merge tag 'drm/panel/for-4.10-rc1' of git://anongit.freedesktop.org/tegra/linux into drm-next
drm/panel: Changes for v4.10-rc1
This adds support for a couple more panels to the simple-panel driver.
There is also a fix for a long-standing bug, but it's not critical since
no code will currently trigger it.
* tag 'drm/panel/for-4.10-rc1' of git://anongit.freedesktop.org/tegra/linux:
drm/panel: simple: Add support for AUO G185HAN01
drm/panel: simple: Add support for AUO G133HAN01
drm/panel: simple: Add more properties to Innolux G121I1-L01
drm/panel: simple: Add bits-per-component for Sharp LQ123P1JX31
drm/panel: simple: Check against num_timings when setting preferred for timing
drm/panel: Add support for Chunghwa CLAA070WP03XG panel
drm/panel: simple: Add NVD9128 as a simple panel
drm/panel: simple: Add support for AUO T215HVN01
drm/panel: simple: Add support for Sharp LQ150X1LG11 panels
dt-bindings: display: Add Sharp LQ150X1LG11 panel binding
single fix for backwards compat.
* tag 'drm-misc-next-fixes-2016-12-10' of git://anongit.freedesktop.org/git/drm-misc:
drm: Add fake controlD* symlinks for backwards compat
pageflipping race fix.
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Merge tag 'drm-vc4-next-2016-12-09' of https://github.com/anholt/linux into drm-next
This pull request brings in VEC (TV-out) support for vc4, along with a
pageflipping race fix.
* tag 'drm-vc4-next-2016-12-09' of https://github.com/anholt/linux:
drm/vc4: Don't use drm_put_dev
drm/vc4: Document VEC DT binding
drm/vc4: Add support for the VEC (Video Encoder) IP
drm: Add TV connector states to drm_connector_state
drm: Turn DRM_MODE_SUBCONNECTOR_xx definitions into an enum
drm/vc4: Fix ->clock_select setting for the VEC encoder
drm/vc4: Fix race between page flip completion event and clean-up
The Apple GMUX is the one managing the backlight, so there is no need for
Nouveau to register its own backlight interface.
v2: Do not split information message on two lines as it prevents from grepping
it, as pointed out by Lukas Wunner
v3: Add a missing end-of-line character to the printed message
Signed-off-by: Pierre Moreau <pierre.morrow@free.fr>
Reviewed-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Currently, every backlight interface created by Nouveau uses the same name,
nv_backlight. This leads to a sysfs warning as it tries to create an already
existing folder. This patch adds a incremented number to the name, but keeps
the initial name as nv_backlight, to avoid possibly breaking userspace; the
second interface will be named nv_backlight1, and so on.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=86539
v2:
* Switch to using ida for generating unique IDs, as suggested by Ilia Mirkin;
* Allocate backlight name on the stack, as suggested by Ilia Mirkin;
* Move `nouveau_get_backlight_name()` to avoid forward declaration, as
suggested by Ilia Mirkin;
* Fix reference to bug report formatting, as reported by Nick Tenney.
v3:
* Define a macro for the size of the backlight name, to avoid defining
it multiple times;
* Use snprintf in place of sprintf.
v4:
* Do not create similarly named interfaces when reaching the maximum
amount of unique names, but fail instead, as pointed out by Lukas Wunner
Signed-off-by: Pierre Moreau <pierre.morrow@free.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
TTM was changed a while back to allow for pipelining of buffer moves, and
part of this was the removal of waiting for a BO to idle before calling
move(), placing the responsibility on the driver to do this if required.
That's all well and good, except, we make use of move_notify() to handle
mapping/unmapping from the GPU VMM as move() isn't called on all paths.
This commit adds a wait before unmapping from a VMM in move_notify(), to
prevent GPU page faults where a buffer is still being accessed.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Cc: stable@vger.kernel.org [v4.8+]
This has been on the TODO list for a while now, recovering from things
such as attempting to execute a push buffer or touch a semaphore in an
unmapped memory area.
The only thing required on the HW side here is that the offending
channel is removed from the runlist, and *not* a full reset of PFIFO.
This used to be a bit messier to handle before the rework to make use
of engine topology info, but is apparently now trivial.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
We thought that no userspace is using them, but oops libdrm is using
them to figure out whether a driver supports modesetting. Check out
drmCheckModesettingSupported but maybe don't because it's horrible and
totally runs counter to where we want to go with libdrm device
handling. The function looks in the device hierarchy for whether
controlD* exist using the following format string:
/sys/bus/pci/devices/%04x:%02x:%02x.%d/drm/controlD%d
The "/drm" subdirectory is the glue directory from the sysfs class
stuff, and the only way to get at it seems to through
kdev->kobj.parent (when kdev is represents e.g. the card0 chardev
instance in sysfs). Git grep says we're not the only ones touching
that, so I hope it's ok we dig into such internals - I couldn't find a
proper interface for getting at the glue directory.
Quick git grep shows that at least -amdgpu, -ati are using this.
-modesetting do not, and on -intel it's only about the 4th fallback
path for device lookup, which is why this didn't blow up earlier.
Oh well, we need to keep it working, and the simplest way is to add a
symlink at the right place in sysfs from controlD* to card*.
v2:
- Fix error path handling by adding if (!minor) return checks (David)
- Fix the controlD* numbers to match what's been there (David)
- Add a comment what exactly userspace minimally needs.
- Correct the analysis for -intel (Chris).
Fixes: 8a357d1004 ("drm: Nerf DRM_CONTROL nodes")
Cc: Dave Airlie <airlied@gmail.com>
Reported-and-tested-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: David Herrmann <dh.herrmann@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161209135656.14881-1-daniel.vetter@ffwll.ch
vc4 already has a proper load sequence, but the unload one needed some
fixups: First unregister, and last drop the final ref.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
The VEC IP is a TV DAC, providing support for PAL and NTSC standards.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Some generic TV connector properties are exposed in drm_mode_config, but
they are currently handled independently in each DRM encoder driver.
Extend the drm_connector_state to store TV related states, and modify the
drm_atomic_connector_{set,get}_property() helpers to fill the connector
state accordingly.
Each driver is then responsible for checking and applying the new config
in its ->atomic_mode_{check,set}() operations.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Eric Anholt <eric@anholt.net>
PV_CONTROL_CLK_SELECT_VEC is actually 2 and not 0. Fix the definition and
rework the vc4_set_crtc_possible_masks() to cover the full range of the
PV_CONTROL_CLK_SELECT field.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Some fixes and cleanup, mainly around fbdev emulation. It also adds a
new module parameter which allows to specify the color depth/bpp for
the fbdev emulation (like the IMX DRM driver).
* tag 'drm-fsl-dcu-for-next' of http://git.agner.ch/git/linux-drm-fsl-dcu:
drm/fsl-dcu: introduce kernel parameter to specify fbdev depth
drm/fsl-dcu: remove separate compilation unit for fbdev emulation
drm/fsl-dcu: Propagate the real error code
drm/fsl-dcu: Remove unneeded NULL check
drm/fsl-dcu: disable outputs before unloading driver
drm/fsl-dcu: unload driver before disabling clocks
Another pile of misc stuff, final one for 4.10. If there's some serious
bugfix still I'll send you a pull for drm-misc-next-fixes (like we do with
intel), otherwise this is it and next pull next year for 4.11.
Most interesting bits are probably Chris' fb helper fixes against mst
hotplug oopses.
* tag 'drm-misc-next-2016-12-08' of git://anongit.freedesktop.org/git/drm-misc: (22 commits)
drm: Take ownership of the dmabuf->obj when exporting
drm: Allow CAP_PRIME on !MODESET
drm/fence: add drm_crtc_create_fence()
drm/bridge: analogix: Don't return -EINVAL when panel doesn't support PSR
drm/atomic: doc: remove old comment about nonblocking commits
drm: Don't block the kworker waiting for mode_config.mutex in output_poll()
drm: Return -ENOTSUPP when called for KMS cap with a non-KMS driver
drm/amdgpu: don't add files at control minor debugfs directory
drm: allow changing DPMS mode
drm/qxl: fix use of uninitialized variable
drm/qxl: Don't register debugfs for control minors
drm/radeon: don't add files at control minor debugfs directory
drm/vmwgfx: Switch to mode_cmd2
drm/vgem: Use ww_mutex_(un)lock even with a NULL context
drm: Make the connector .detect() callback optional
drm/bridge: tc358767: don't warn if display side ASSR enable fails
drm: Initialise drm_mm.head_node.allocated
drm: Fix locking cargo-cult in encoder/plane init/cleanup
drm/doc: Fix indenting in drm_modeset_lock.c comment
drm: Protect fb_helper list manipulation with a mutex
...
Misc fixes and cleanups for 4.10. Highlights:
- Cursor fixes for radeon and amdgpu
- DPM fixes for some new SI variants
- Powerplay fixes
- Clock and powergating fixes
* 'drm-next-4.10' of git://people.freedesktop.org/~agd5f/linux: (39 commits)
drm/amdgpu/dce6: Set MASTER_UPDATE_MODE to 0 in resume_mc_access as well
drm/amdgpu: use pin rather than pin_restricted in a few cases
drm/amd/powerplay: use pr_debug to print function not implemented message
drm/amd/amdgpu: Add gpr reading for GFX v7
drm/amd/amdgpu: Add gpr reading for GFX v6
drm/amd/amdgpu: Add debugfs support for reading GPRs (v2)
drm/amd/amdgpu: export vbios information (v2)
drm/amd/amdgpu: stored bios_size
drm/amdgpu: update golden setting of tonga
drm/amdgpu/si: load the proper firmware on 0x87 oland boards
drm/amdgpu: add additional pci revision to dpm workaround
drm/radeon/si: load the proper firmware on 0x87 oland boards
drm/radeon: add additional pci revision to dpm workaround
drm/amd/powerplay: Fix potential NULL pointer issue
drm/amdgpu: Don't touch GFX hw during HW fini
drm/amd/powerplay: Adjust the position of data size initial
drm/amd/powerplay: Ignore smu buffer usage
drm/amd/powerplay: cut digest part
drm/amdgpu: drop redundant vi_mqd define
drm/amdgpu: fix gtt available page num accounting
...
* fix tpd12s015's error handling, which causes omap5 uevm HDMI to fail
* fix omapdrm primary plane allocation bug, which makes the display to fail to
come up
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Merge tag 'omapdrm-4.10-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux into drm-next
omapdrm fixes for v4.10
* fix tpd12s015's error handling, which causes omap5 uevm HDMI to fail
* fix omapdrm primary plane allocation bug, which makes the display to fail to
come up
* tag 'omapdrm-4.10-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux:
drm/omap: tpd12s015: fix error handling
drm/omap: fix primary-plane's possible_crtcs
drm: fix possible_crtc's type
Looks like this was missed when dce_v6_0.c was added.
Fixes: e2cdf640cb ("drm/amdgpu: add display controller implementation for si v10")
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
We don't require a resticted pinning in these cases, so just
use plain pin.
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
For CZ, some function pointers like display_configuration_changed
are not set. So when HW manager tries to configure display, we
end up with messages like
"[ powerplay ] this function not implement!"
in the logs. This message is informational, but lacks details
on which function is not implemented and why.
Rather than using KERN_INFO to print the message everytime the
system boots, we rather use pr_debug so that it is only printed
when debug prints are enabled at runtime.
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Arindam Nath <arindam.nath@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Acked-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Acked-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Implemented for SGPRs for GFX v8 initially.
(v2) cleanup minor whitespace and remove sanity check and
addressing is in dwords not bytes
Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Acked-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Laurent Pinchart