High pixel clocks are required to use a 40 TMDS divider instead of 10,
and even low ones may optionally use scrambling depending on device
support.
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Introduces a new method of defining channels available from the display,
common to all channel types, allowing for more flexibility in available
channel types/counts, and reducing the amount of boiler-plate required.
This will be required to support Volta.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Engines are initialised on an as-needed basis, so this results in the
same behaviour, whilst allowing us to simplify things a bit.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This makes use of all the additional routing and state added in previous
commits, making it possible to deal with GM20x macro link routing, while
also sharing code between the NV50 and GF119 implementations.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
These exist to give NVKM information on the set of display paths that
the DD needs to be active at any given time.
Previously, the supervisor attempted to determine this solely from OR
state, but there's a few configurations where this information on its
own isn't enough to determine the specific display paths in question:
- ANX9805, where the PIOR protocol for both DP and TMDS is TMDS.
- On a device using DCB Switched Outputs.
- On GM20x and newer, with a crossbar between the SOR and macro links.
After this commit, the DD tells NVKM *exactly* which display path it's
attempting a modeset on.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Also removes the user-facing methods to these controls, as they're not
currently utilised by the DD anyway.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This essentially (unless the link becomes unstable and needs to be
re-trained) gives us a single entry-point to link training, during
supervisor handling, where we can ensure all routing is up to date.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This hasn't been used since atomic.
We may want to re-implement "fast" DPMS at some point, but for now,
this just gets in the way.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Primarily intended as a way to pass per-head state around during
supervisor handling, and share logic between NV50/GF119.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This isn't technically "output", but, "display/output path".
Not all users of nvkm_output have been changed here. The remaining
ones belong to code that's disappearing in upcoming commits.
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>
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>
