[Nouveau] [PATCH v4 00/37] Volting/Clocking improvements for Fermi and newer

[Karol Herbst]

We are slowly getting there!

v4 of the series with some realy good improvements, so I am sure this is like
95% done and only needs some proper polishing and proper Reviews!

I also added the NvVoltOffsetmV module parameter, so that a user is able to
over and !under!-volt the GPU. Overvolting makes sense, when there are still
some reclocking issues left, which might be solved by a higher voltage.

Undervolting makes sense to decrease the used voltage for each Cstate and to
make more C-States available on a handfull cards. This is some sort of really
basic Overclocking support, which comes at the cost of stability, but has
nearly no impact on the power consumption or heat production.

But because this doesn't add new stuff and only directly modifies the voltage
calculation, it is all still according to the vbios and doesn't add new clocks
or something like that.

If anything is unclear how I REed or got the information, please leave a note
so that I can provide additional information in the commits.

This series can be found on my "stable_reclocking_kepler_v4" branch on github

Happy testing and happy reviewing!

v3: adjust to temperature and minor fixes in the commits
v4: add speedo values
    add proper coefficients based on speedo
    refactor some code in clk to not affect pre-fermi chips
    add NvVoltOffsetmV option

Karol Herbst (37):
  bios/volt: handle voltage table version 0x50 with 0ed header
  volt: properly detect entry based voltage tables
  volt: save the voltage range we are able to set
  volt: add nvkm_volt_map_min function
  clk: don't create cstates whit voltages higher than what the gpu can
    do
  volt: parse the max voltage map entries
  volt: add min_id parameter to nvkm_volt_set_id
  clk: export nvkm_volt_map
  clk: add index field to nvkm_cstate
  add daemon to compare nouveau with blob voltage
  volt: add temperature parameter to nvkm_volt_map
  clk: fixup cstate selection
  clk: respect voltage limits in nvkm_cstate_prog
  bios: add parsing of BASE CLOCK table
  clk: allow boosting only when NvBoost is set
  volt: don't require perfect fit
  bios/vmap: unk0 field is the mode
  volt: add speedo
  volt: add gf100 subdev with speedo
  volt: add coefficients
  clk: save the max clock we can set
  clk: rename nvkm_pstate_calc to nvkm_clk_update
  nvif: add boost info and set operations
  debugfs: add boost interface to change the boost_mode
  clk: remove dstate and tstate
  therm: don't cancel the timer
  clk: make pstate a pointer to nvkm_pstate
  clk: hold information about the current cstate status
  clk: we should pass the pstate id around not the index in the list
  clk: seperate the locking from the implementation in nvkm_clk_update
  clk: split out update code to nv40
  clk: only do partial reclocks as required
  therm: trigger reclock in temperature daemon
  mc: fix NULL pointer access in libnouveau
  clk: set clocks to pre suspend state after suspend
  WIP volt/gk104: readout speedo
  volt: add NvVoltOffsetmV option

 bin/nv_cmp_volt.c                                | 139 +++++++++++
 drm/nouveau/include/nvif/if0001.h                |  15 ++
 drm/nouveau/include/nvkm/subdev/bios/baseclock.h |  24 ++
 drm/nouveau/include/nvkm/subdev/bios/vmap.h      |   5 +-
 drm/nouveau/include/nvkm/subdev/bios/volt.h      |   5 +-
 drm/nouveau/include/nvkm/subdev/clk.h            |  23 +-
 drm/nouveau/include/nvkm/subdev/volt.h           |  17 +-
 drm/nouveau/nouveau_debugfs.c                    |  82 ++++++-
 drm/nouveau/nvkm/engine/device/base.c            |  17 +-
 drm/nouveau/nvkm/engine/device/ctrl.c            |  60 ++++-
 drm/nouveau/nvkm/subdev/bios/Kbuild              |   1 +
 drm/nouveau/nvkm/subdev/bios/baseclock.c         |  82 +++++++
 drm/nouveau/nvkm/subdev/bios/vmap.c              |  12 +-
 drm/nouveau/nvkm/subdev/bios/volt.c              |  45 ++--
 drm/nouveau/nvkm/subdev/clk/base.c               | 298 ++++++++++++++++-------
 drm/nouveau/nvkm/subdev/clk/g84.c                |   1 +
 drm/nouveau/nvkm/subdev/clk/gf100.c              |  63 ++++-
 drm/nouveau/nvkm/subdev/clk/gk104.c              |   3 +-
 drm/nouveau/nvkm/subdev/clk/gk20a.c              |   1 +
 drm/nouveau/nvkm/subdev/clk/gm20b.c              |   1 +
 drm/nouveau/nvkm/subdev/clk/gt215.c              |   1 +
 drm/nouveau/nvkm/subdev/clk/mcp77.c              |   1 +
 drm/nouveau/nvkm/subdev/clk/nv40.c               |  18 ++
 drm/nouveau/nvkm/subdev/clk/nv50.c               |   1 +
 drm/nouveau/nvkm/subdev/clk/priv.h               |   9 +
 drm/nouveau/nvkm/subdev/mc/base.c                |   7 +-
 drm/nouveau/nvkm/subdev/pmu/gk20a.c              |  23 +-
 drm/nouveau/nvkm/subdev/therm/base.c             |  14 +-
 drm/nouveau/nvkm/subdev/volt/Kbuild              |   1 +
 drm/nouveau/nvkm/subdev/volt/base.c              | 159 +++++++++++-
 drm/nouveau/nvkm/subdev/volt/gf100.c             |  59 +++++
 drm/nouveau/nvkm/subdev/volt/gk104.c             |  19 ++
 drm/nouveau/nvkm/subdev/volt/priv.h              |   1 +
 33 files changed, 1034 insertions(+), 173 deletions(-)
 create mode 100644 bin/nv_cmp_volt.c
 create mode 100644 drm/nouveau/include/nvkm/subdev/bios/baseclock.h
 create mode 100644 drm/nouveau/nvkm/subdev/bios/baseclock.c
 create mode 100644 drm/nouveau/nvkm/subdev/volt/gf100.c

-- 
2.8.1