Martin Peres [Thu, 13 Mar 2014 23:26:52 +0000 (00:26 +0100)]
drm/nouveau/pm/fan: drop the fan lock in fan_update() before rescheduling
This should fix a deadlock that has been reported to us where fan_update()
would hold the fan lock and try to grab the alarm_program_lock to reschedule
an update. On an other CPU, the alarm_program_lock would have been taken
before calling fan_update(), leading to a deadlock.
Mario Kleiner [Wed, 19 Mar 2014 09:02:11 +0000 (10:02 +0100)]
drm/nouveau: fix small thinko in vblank timestamping.
*hpos horizontal scanout position doesn't need to be corrected
to count the pixels between hactive end and htotal negative.
That is only needed for *vpos to count lines until end of
vblank for the vblank timestamping.
Use hpos as is without correction.
Removes occassional spikes in timestamps of up to 1 scanline
duration, thereby improves accuracy to about +/- 2 usecs instead
of +/- 12 usecs, wrt. true onset time as measured with high
precision equipment on NV-A5.
Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ilia Mirkin [Wed, 19 Mar 2014 14:45:55 +0000 (10:45 -0400)]
drm/nouveau/disp/dp: allow 540MHz data rate
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=76319 Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ben Skeggs [Mon, 3 Mar 2014 06:18:56 +0000 (16:18 +1000)]
drm/nouveau: fix fbcon not being accelerated after suspend
This does *not* (and is not intended to) fix the issue reported by
Christoph Rudorff on the nouveau mailinglist.
The patch proposed (which is similar to this one, but also reorders
whether we disable accel or call fb_set_suspend first), papers over
another problem entirely by avoiding touching the framebuffer.
Ben Skeggs [Wed, 26 Feb 2014 00:14:15 +0000 (10:14 +1000)]
drm/nouveau/bios: add more checks to PRAMIN image fetching
Prevents an attempt to access VRAM on an un-posted board, which, on a
particular system with a GRID K1 installed, causes a MCE and chokes
the entire system.
Upcoming mobile Kepler GPUs (such as GK20A) use the platform bus instead
of PCI to which Nouveau is tightly dependent. This patch allows Nouveau
to handle platform devices by:
- abstracting PCI-dependent functions that were typically used for
resource querying and page mapping,
- introducing a nv_device_is_pci() function that allows to make
PCI-dependent code conditional,
- providing a nouveau_drm_platform_probe() function that takes a GPU
platform device to be probed.
Core code as well as engine/subdev drivers are updated wherever possible
to make use of these functions. Some older drivers are too dependent on
PCI to be properly updated, but all newer code on which future chips may
depend should at least be runnable with platform devices.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ilia Mirkin [Fri, 14 Feb 2014 02:35:14 +0000 (21:35 -0500)]
drm/nouveau: use nv_debug for NV_DEBUG, make DRM a separate subflag
It's really confusing for NV_DEBUG's printing to be controlled via
drm.debug while everything else is controlled via nouveau.debug. These
messages can be turned on with nouveau.debug=DRM=debug.
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ilia Mirkin [Thu, 13 Feb 2014 08:39:50 +0000 (03:39 -0500)]
drm/nouveau: make hdmi device finding failure prints debug level
The hdmi device is required for runtime pm. However it is not available
on many esp older devices, which were all seeing these error messages.
Take this opportunity to also convert to nv_debug instead of the DRM_*
messages, like the rest of nouveau does.
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
pm_runtime_get*() may return -EACCES to indicate a device does not have
runtime PM enabled. This is currently the case with platform devices
on Nouveau, and is not an error in that context. Handle this case
without failure.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ilia Mirkin [Sun, 9 Feb 2014 20:51:24 +0000 (15:51 -0500)]
drm/nouveau: replace ffsll with __ffs64
The ffsll function is a lot slower than the __ffs64 built-in which
compiles to a single instruction on 64-bit. It's also nice to avoid
custom versions of standard functions. Note that __ffs == ffs - 1.
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Dave Airlie [Sun, 23 Mar 2014 22:58:20 +0000 (08:58 +1000)]
Merge branch 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next
Highlights
----------
Re-factoring works over the exynos drm framework.
- drm_crtc, drm_encoder/drm_connector are implemented by sub drivers
directly.
- Removing pm interfaces from each sub driver, and implementing them
at top level of exynos drm.
Add DisplayPort Transmitter driver.
- Just moving existing driver from drivers/vides/exynos into
drivers/gpu/drm/exynos.
Add new LVDS bridge driver, PTN3460.
- Placed in drivers/gpu/drm/bridge, and this device is used to transfer
image signal from DP(DisplayPort) to LVDS Panel.
So this driver will be used with DP driver moved into exynos drm.
Add parallel panel support
- With the re-factoring patch series, existing parallel panel support was
broken by moving exynos_drm_display ops into each real connector driver,
DP. So this patch series adds a new parallel panel module,
exynos_drm_dpi, for supporting parallel panel, and also adds relevant
bindings.
Some fixups and cleanups.
* 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos: (45 commits)
drm/exynos: fimd: remove unused variable
ARM: dts: exynos4210-universal: add exynos/fimd node
drm/exynos: restore parallel output interface support
exynos/fimd: add parallel output related bindings
drm/exynos: correct timing porch conversion
drm/exynos: init kms poll after creation of connectors
drm/exynos: delay fbdev initialization until an output is connected
drm/exynos: fix unnecessary resource cleanup
drm/exynos: hdmi: use i2c_adapter instead of i2c_client
drm/exynos: hdmi: consider APB PHY
drm/exynos: Remove the exynos_drm_connector shim
drm/exynos: Implement lvds bridge discovery to DP driver
drm/bridge: Add PTN3460 bridge driver
drm/exynos: Implement drm_connector directly in vidi driver
drm/exynos: Implement drm_connector directly in dp driver
drm/exynos: Implement drm_connector in hdmi directly
drm/exynos: Add create_connector callback
drm/exynos: Consolidate suspend/resume in drm_drv
drm/exynos: Clean up FIMD power on/off routines
drm/exynos: Implement dpms display callback in DP
...
drm_add_edid_modes started to WARN about the mode_config.mutex not
being held in the lvds and dp initialization code.
Now since this is init code locking is fairly redudant if it wouldn't
be for the drm core registering sysfs files a bit early. And the
locking WARNINGs nicely enforce that indeed all access to the mode
lists are properly protected. And a full audit shows that only i915
and gma500 touch the modes lists at init time.
Hence I've opted to wrap up this entire mode detection sequence for
fixed panels with the mode_config mutex for both lvds and edp outputs.
Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
drm_add_edid_modes started to WARN about the mode_config.mutex not
being held in the lvds and dp initialization code.
Now since this is init code locking is fairly redudant if it wouldn't
be for the drm core registering sysfs files a bit early. And the
locking WARNINGs nicely enforce that indeed all access to the mode
lists are properly protected. And a full audit shows that only i915
and gma500 touch the modes lists at init time.
Hence I've opted to wrap up this entire mode detection sequence for
fixed panels with the mode_config mutex for both lvds and edp outputs.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
The patch adds fimd node with display timings for exynos4210-universal device.
It also makes LCD regulators always on. This allow to re-use panel initialized
by boot loader.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
Andrzej Hajda [Mon, 17 Mar 2014 12:03:56 +0000 (13:03 +0100)]
drm/exynos: restore parallel output interface support
The patch adds parallel output interface to FIMD device driver.
It also restores support for panels initialized by boot loader,
but without proper kernel driver.
Driver uses video interface bindings to find connected panel.
It uses drm_panel interface to interact with the panel.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
Andrzej Hajda [Mon, 17 Mar 2014 10:27:17 +0000 (11:27 +0100)]
drm/exynos: delay fbdev initialization until an output is connected
In case fbdev is initialized before any output is connected,
fb resolution defaults to 1024x768. After that any output with
bigger resolution is ignored and fbdev is not displayed.
The patch postpones fbdev initialization to avoid such situation.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
Sean Paul [Mon, 24 Feb 2014 10:25:42 +0000 (19:25 +0900)]
drm/exynos: Remove the exynos_drm_connector shim
This path removes the exynos_drm_connector code since it was just
passing hooks through display_ops. The individual device drivers are now
responsible for implementing drm_connector directly.
Signed-off-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Inki Dae <inki.dae@samsung.com>
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