For now, only 2 control modes are available:
- NONE: The fan is never touched (default)
- MANUAL: The fan is set to the user-defined fan speed (pwm1)

This patch introduces a distinction between ptherm internal fan management
and external fan management. The latter is bound to respect the fan mode
while the first can still select the speed it wants unless the NONE mode
is selected. This is important for automatic fan management.
Signed-off-by: NMartin Peres <martin.peres@labri.fr>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

This was reported by tizbac on IRC.
Signed-off-by: NMartin Peres <martin.peres@labri.fr>
Reviewed-by: NBen Skeggs <bskeggs@redhat.com>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

v2: Martin Peres <martin.peres@labri.fr>
- fixed unintentional use of floating point
Signed-off-by: NMartin Peres <martin.peres@labri.fr>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

The previous driver waited for 250ms to accumulate data. This version times a
complete fan rotation and extrapolates to RPM.

The fan rotational speed should now be read in less than 250ms (worst case)
and usually in less 50ms.
Signed-off-by: NMartin Peres <martin.peres@labri.fr>
Reviewed-by: NBen Skeggs <bskeggs@redhat.com>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

It looks scary because of the size, but I tried to keep the differences minimal.
Further patches will fix the actual "driver" code and add new features.

v2: change filenames, split to submodules

v3: add a missing include

v4: Ben Skeggs <bskeggs@redhat.com>
- fixed set_defaults() to allow min_duty < 30 (thermal table will
  override this if it's actually necessary)
- fixed set_defaults() to not provide pwm_freq so nv4x (which only has
  pwm_div) can actually work.  the boards using pwm_freq will have a
  thermal table entry to provide us the value.
- removed unused files
Signed-off-by: NMartin Peres <martin.peres@labri.fr>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

v2: perf_table now is more in line with the other functions
Signed-off-by: NMartin Peres <martin.peres@labri.fr>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

This commit also adds a static list of all known devices and their possible
i2c addresses.

v2: use the common table parsing technique as suggested by darktama
Signed-off-by: NMartin Peres <martin.peres@labri.fr>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

As an accident, it should also fix temperature reading on nv4x.

v2: introduce nvbios_therm_entry as advised by darktama
Signed-off-by: NMartin Peres <martin.peres@labri.fr>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NMartin Peres <martin.peres@labri.fr>
Reviewed-by: NBen Skeggs <bskeggs@redhat.com>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

If nouveau_pm_perflvl_get() fails, pm->profiles list will be left
uninitialized, which causes oops during nouveau_pm_fini().

Move INIT_LIST_HEAD before call to nouveau_pm_perflvl_get().
Signed-off-by: NDmitry Eremin-Solenikov <dmitry_eremin@mentor.com>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

This will make it more obvious which application caused particular messages.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

May kill the DRM version completely at some point, undecided..
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Can be somewhat more informative that way...
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Seems to be required to "re-arm" the engines after a vm fault.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Not really sure how to confirm this 100%, but, the numbers match on all the
traces I have for NVCx (2 LTS), NVD9 (1LTS) and NVEx (4LTS).
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Graphics acceleration is still disabled by default due to lingering issues
that need to be solved.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Triggers PIBUS interrupts due to register not existing anymore, and as
a result HUB_SET_CHAN times out.

After this commit, our fuc loads and can accelerate at least fbcon, X,
glxgears and OA on NVE4.  NVE7 not tested as of yet.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Currently identical except the available chipset register lists.  This will
*not* currently work and is disabled by default because of this.

May get merged again later, remains to be seen what further changes will be
required.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Came in useful for debugging another issue earlier, so keep it around.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NMarcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NMarcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Will probably flesh the documentation of the classes out a bit too at some
later point.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Future code will use the object class rather than chipset checks in order to
identify available channel features.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

This value will match something that's easily available from the engine IRQ
handlers, and used to lookup the relevant context.

Since the changes in how this is done on each generation match when the
major PFIFO changes happened, fifo is responsible for calculating the
correct value to avoid duplicating the same code among many engine modules.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

IRQ handlers will need access to engine contexts.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Kepler PFIFO lost the ability to address multiple engines from a single
channel, so we need a separate one for the copy engine.

v2: Marcin Slusarz <marcin.slusarz@gmail.com>
- regression fix: restore hw accelerated buffer copies
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>