This commit separates the calculation of EVO state from the commit, in
order to make the same code useful for atomic modesetting.
The legacy interfaces have been wrapped on top of them.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit separates the calculation of EVO state from the commit, in
order to make the same code useful for atomic modesetting.
The legacy interfaces have been wrapped on top of them.
We're no longer touching the overlay channel usage bounds as of this
commit. The code to do so is in place for when overlay planes are
added.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit separates the calculation of EVO state from the commit, in
order to make the same code useful for atomic modesetting.
The legacy interfaces have been wrapped on top of them.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit separates the calculation of EVO state from the commit, in
order to make the same code useful for atomic modesetting.
The legacy interfaces have been wrapped on top of them.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit separates the calculation of EVO state from the commit, in
order to make the same code useful for atomic modesetting.
The legacy interfaces have been wrapped on top of them.
As of this commit, we're no longer bothering to point the core surface
at a valid framebuffer. Prior to this, we'd initially point the core
channel to the framebuffer passed in a mode_set()/mode_set_base(), and
then use the base channel for any page-flip updates, leaving the core
channel pointing at stale information.
The important thing here is to configure the core surface parameters in
such a way that EVO's error checking is satisfied.
TL;DR: The situation isn't too much different to before.
There may be brief periods of times during modesets where the (garbage)
core surface will be showing. This issue will be resolved once support
for atomic commits has been implemented and we're able to interlock the
updates that involve multiple channels.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit separates the calculation of EVO state from the commit, in
order to make the same code useful for atomic modesetting.
The legacy interfaces have been wrapped on top of them.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Sometimes we load with a sink already in MST mode. If, however, we can't
or don't want to use MST, we need to be able to switch it back to SST.
This commit instantiates a stub topology manager for any output path that
we believe (the detection of this could use some improvement) has support
for MST, and adds the connector detect() logic for detecting sink support
and switching between modes.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This is different from the equivilant functions in the atomic helpers in
that we fully disable the pipe instead of just setting it to inactive.
We do this (primarily) to ensure the framebuffer cleanup paths are hit,
allowing buffers to be un-pinned from memory so they can be evicted to
system memory and not lose their contents while suspended.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit implements the atomic property hooks for a connector, and
wraps the legacy interface handling on top of those.
For the moment, a full modeset will be done after any property change
in order to ease subsequent changes. The optimised behaviour will be
restored for Tesla and later (earlier boards always do full modesets)
once atomic commits are implemented.
Some functions are put under the "nouveau_conn" namespace now, rather
than "nouveau_connector", to distinguish functions that will work for
(upcoming) MST connectors too.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
nouveau_display_fini() is responsible for quiescing the hardware, so
this is where such actions belong.
More than that, nouveau_display_fini() switches off the receiving of
sink irqs, which MST will require while shutting down an active head.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This primarily existed to ensure the DP link got retrained, and is
now unnecessary as that's handled by NVKM already.
For anything beyond that, we send an event to userspace and let it
decide on an appropriate action to take.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
There haven't been any callers from an atomic context for a while now,
so let's remove the extra complexity.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
'iommu_domain_alloc()' returns NULL in case of error, not an error pointer.
So test it accordingly.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
gm20b's FB has the same capabilities as gm200, minus the ability to
allocate RAM. Create a device that reflects this instead of re-using the
gk20a device which may be incorrect.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-By: Karol Herbst <karolherbst@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
gk20a's FB is not special compared to other Kepler chips, besides the
fact it does not have VRAM. Use the regular gf100 hooks instead of the
incomplete versions we rewrote.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-By: Karol Herbst <karolherbst@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
The gf100 constructor should be called, otherwise we will allocate a
smaller object than expected. This was without effect so far because
gk20a did not allocate a page, but with gf100's page allocation moved
to the oneinit() hook this problem has become apparent.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
The reset hook of pmu_func is never called, and gt215 was the only chip
to implement. Remove this dead code.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
There is no reason to not free the notify data if the NTFY_DEL ioctl
failed. As nvif_notify_fini() is also called from the cleanup path of
nvif_notify_init(), the notifier may not have been successfully created
at that point. But it should also be the right thing to just free the
data in the regular fini calls, as there is nothing much we can do if
the ioctl fails, so better not leak memory.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
uevent based fences hold a reference to the fence context,
just like the legacy ones. So they need to drop this reference
in the same way.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
gcc-4.9 notices that the validate_init() function returns unintialized
data when called with a zero 'nr_buffers' argument, when called with the
-Wmaybe-uninitialized flag:
drivers/gpu/drm/nouveau/nouveau_gem.c: In function ‘validate_init.isra.6’:
drivers/gpu/drm/nouveau/nouveau_gem.c:457:5: error: ‘ret’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
However, the only caller of this function always passes a nonzero
argument, and gcc-6 is clever enough to take this into account and
not warn about it any more.
Adding an explicit initialization to -EINVAL here is correct even if
the caller changed, and it avoids the warning on gcc-4.9 as well.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-By: Karol Herbst <karolherbst@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
We get a few warnings when building kernel with W=1:
drivers/gpu/drm/nouveau/nvkm/subdev/bios/fan.c:29:1: warning: no previous prototype for 'nvbios_fan_table' [-Wmissing-prototypes]
drivers/gpu/drm/nouveau/nvkm/subdev/bios/fan.c:56:1: warning: no previous prototype for 'nvbios_fan_entry' [-Wmissing-prototypes]
drivers/gpu/drm/nouveau/nvkm/subdev/clk/gt215.c:184:1: warning: no previous prototype for 'gt215_clk_info' [-Wmissing-prototypes]
drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramgt215.c:99:1: warning: no previous prototype for 'gt215_link_train_calc' [-Wmissing-prototypes]
drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramgt215.c:153:1: warning: no previous prototype for 'gt215_link_train' [-Wmissing-prototypes]
drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramgt215.c:271:1: warning: no previous prototype for 'gt215_link_train_init' [-Wmissing-prototypes]
....
In fact, both functions are only used in the file in which they are
declared and don't need a declaration, but can be made static.
So this patch marks these functions with 'static'.
Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
We get a few warnings when building kernel with W=1:
drivers/gpu/drm/nouveau/nvkm/core/firmware.c:34:1: warning: no previous prototype for 'nvkm_firmware_get' [-Wmissing-prototypes]
drivers/gpu/drm/nouveau/nvkm/core/firmware.c:58:1: warning: no previous prototype for 'nvkm_firmware_put' [-Wmissing-prototypes]
drivers/gpu/drm/nouveau/nvkm/subdev/fb/sddr3.c:69:1: warning: no previous prototype for 'nvkm_sddr3_calc' [-Wmissing-prototypes]
drivers/gpu/drm/nouveau/nvkm/subdev/fb/sddr2.c:60:1: warning: no previous prototype for 'nvkm_sddr2_calc' [-Wmissing-prototypes]
....
In fact, these functions are declared in
drivers/gpu/drm/nouveau/include/nvkm/core/firmware.h
drivers/gpu/drm/nouveau/nvkm/subdev/fb/ram.h
drivers/gpu/drm/nouveau/nvkm/subdev/volt/priv.h
drivers/gpu/drm/nouveau/nvkm/engine/gr/nv50.h
drivers/gpu/drm/nouveau/dispnv04/disp.h.
So this patch adds missing header dependencies.
Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
DPAUX registers moved on Kepler, these chipsets were still using the
Fermi implementation for some reason.
This fixes detection of hotplug/sink IRQs on DP connectors.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Cc: stable@vger.kernel.org
This fixes (works around?) link training failures seen on (at least)
the Lenovo P50's internal panel.
It's also an important fix on the same system for MST support on the
dock. Sometimes, right after receiving an IRQ from the sink, there's
an error bit (SINKSTAT_ERR) set in the DPAUX registers before we've
even attempted a transaction.
v2. Fixed regression on passive DP->DVI adapters.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
It adds the initial ZTE VOU display controller DRM driver. There are
still some features to be added, like overlay plane, scaling, and more
output devices support. But it's already useful with dual CRTCs and
HDMI monitor working.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
It adds initial bindings doc for ZTE VOU display controller. HDMI is
the only supported output device right now.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
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Backmerge tag 'v4.9-rc4' into drm-next
Linux 4.9-rc4
This is needed for nouveau development.
The main change here is the big refactoring to remove omapdrm's own
'omap_video_timings', and use the standard display timings.
Besides that, a few minor fixes and cleanups.
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Merge tag 'omapdrm-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux into drm-next
omapdrm changes for v4.10
The main change here is the big refactoring to remove omapdrm's own
'omap_video_timings', and use the standard display timings.
Besides that, a few minor fixes and cleanups.
Pull i2c fix from Wolfram Sang:
"A bugfix for the I2C core fixing a (rare) race condition"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: core: fix NULL pointer dereference under race condition
