[00/14] GMU-less A6xx support (A610, A619_holi)

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Konrad Dybcio Jan. 26, 2023, 3:16 p.m. UTC

This series concludes my couple-weeks-long suffering of figuring out
the ins and outs of the "non-standard" A6xx GPUs which feature no GMU.

The GMU functionality is essentially emulated by parting out a
"GMU wrapper" region, which is essentially just a register space
within the GPU. It's modeled to be as similar to the actual GMU
as possible while staying as unnecessary as we can make it - there's
no IRQs, communicating with a microcontroller, no RPMh communication
etc. etc. I tried to reuse as much code as possible without making
a mess where every even line is used for GMU and every odd line is
used for GMU wrapper..

This series contains:
- plumbing for non-GMU operation, if-ing out GMU calls based on
  GMU presence
- GMU wrapper support
- A610 support (w/ speedbin)
- A619 support (w/ speedbin)
- couple of minor fixes and improvements
- VDDCX/VDDGX scaling fix for non-GMU GPUs (concerns more than just
  A6xx)
- Enablement of opp interconnect properties

A619_holi works perfectly fine using the already-present A619 support
in mesa. A610 needs more work on that front, but can already replay
command traces captures on downstream.

NOTE: the "drm/msm/a6xx: Add support for A619_holi" patch contains
two occurences of 0x18 used in place of a register #define, as it's
supposed to be RBBM_GPR0_CNTL, but that will only be present after
mesa-side changes are merged and headers are synced from there.

Speedbin patches depend on:
https://lore.kernel.org/linux-arm-msm/[e-mail]/

Konrad Dybcio (14):
  drm/msm/a6xx: De-staticize sptprac en/disable functions
  drm/msm/a6xx: Extend UBWC config
  drm/msm/a6xx: Introduce GMU wrapper support
  drm/msm/a6xx: Remove both GBIF and RBBM GBIF halt on hw init
  drm/msm/adreno: Disable has_cached_coherent for A610/A619_holi
  drm/msm/gpu: Use dev_pm_opp_set_rate for non-GMU GPUs
  drm/msm/a6xx: Add support for A619_holi
  drm/msm/a6xx: Add A610 support
  drm/msm/a6xx: Fix some A619 tunables
  drm/msm/a6xx: Fix up A6XX protected registers
  drm/msm/a6xx: Enable optional icc voting from OPP tables
  drm/msm/a6xx: Use "else if" in GPU speedbin rev matching
  drm/msm/a6xx: Add A619_holi speedbin support
  drm/msm/a6xx: Add A610 speedbin support

 drivers/gpu/drm/msm/adreno/a6xx_gmu.c       |  55 ++-
 drivers/gpu/drm/msm/adreno/a6xx_gmu.h       |   2 +
 drivers/gpu/drm/msm/adreno/a6xx_gpu.c       | 424 +++++++++++++++++---
 drivers/gpu/drm/msm/adreno/a6xx_gpu.h       |   1 +
 drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c |  14 +-
 drivers/gpu/drm/msm/adreno/adreno_device.c  |  34 +-
 drivers/gpu/drm/msm/adreno/adreno_gpu.c     |   3 +
 drivers/gpu/drm/msm/adreno/adreno_gpu.h     |  19 +-
 drivers/gpu/drm/msm/msm_gpu_devfreq.c       |   2 +-
 9 files changed, 488 insertions(+), 66 deletions(-)