[PATCH 00/12] drm/msm/a8xx: GPU state capture support

[Rob Clark <robin.clark@oss.qualcomm.com>]

This series introduces gen8 devcoredump support.  Compared to previous
gens, it:

1. Switches to generated tables.  Compared to hand modifying headers from
   kgsl (which were originally generated, then adjusted a bit by hand before
   adding to kgsl tree.  And then copied to drm/msm and lightly modified
   some more in the process).

   In the process, we also switch to generated nonctx reg tables and
   cp_protect tables.

2. Aligns to the "snapshot" format that kgsl/etc use for hw state capture.
   The non-generation specific bits (SMMU fault info, capturing relevant
   BOs, etc) still works as before.  Everything gen8 specific gets encoded
   as "snapshot" sections, ascii85 encoded in the resulting devcoredump
   file (similar to captured BOs).

3. Try to make it easier to at least compare kgsl snapshot code with
   upstream, for porting fixes/etc.  State capture is tedious and mind-
   numbing, and the last thing you want to do when debugging a GPU hang
   is going down the rabbit hole of having to first debug gpu state
   capture.

   However, I don't love kgsl_snapshot_add_section().  It does avoid
   duplicating snapshot header stuff everywhere.  But the ergonomics
   are not great.  So instead I went with "align with what I wish kgsl
   looked like..

The mesa/crashdec side of this is at:

   https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/45304

I'd appreciate tested-by's on Hawi, Maili, Milos, and Pakala, since I
don't have these devices at-hand to test myself.  In particular, do
things look fine after the switch to generated nonctx regs.  To test
devcoredump, you can use the msm_recovery test in igt.. or just:

  cat /sys/kernel/debug/dri/*/gpu > /dev/null


NOTE: Uses $codename for generated file/table names, rather than continue
      to perpetuate the equally meaningless gen8_x_y naming from kgsl into 
      upstream.  At least the codenames are familiar upstream and this
      removes an extra level of name translation.

Rob Clark (12):
  drm/msm: Import adreno_snapshot.h
  drm/msm/a8xx: Export aperture helpers
  drm/msm/a8xx: Add a8xx_aperture_acquire_slice()
  drm/msm/a8xx: Allow nonctx reglist to include GMU regs
  drm/msm/a8xx: Stop getting GMEM_PROTECT from nonctx list
  drm/msm/adreno: Fix PROTECT span length
  drm/msm/adreno: add temporary __maybe_unused
  drm/msm/a8xx: Import generated headers
  drm/msm/a8xx: devcoredump state capture support
  drm/msm/a8xx: Switch to generated nonctx regs
  drm/msm/a8xx: Switch to generated protect regs
  drm/msm/adreno: Remove temporary __maybe_unused

 drivers/gpu/drm/msm/Makefile                  |    4 +-
 drivers/gpu/drm/msm/adreno/a6xx_gpu.c         |    7 +
 drivers/gpu/drm/msm/adreno/a6xx_gpu.h         |   15 +-
 drivers/gpu/drm/msm/adreno/a8xx_catalog.c     |  668 +----
 drivers/gpu/drm/msm/adreno/a8xx_gpu.c         |   42 +-
 drivers/gpu/drm/msm/adreno/a8xx_gpu_state.c   | 1253 +++++++++
 .../gpu/drm/msm/adreno/adreno_gen8_snapshot.h |  582 ++++
 drivers/gpu/drm/msm/adreno/adreno_gpu.h       |    2 +
 drivers/gpu/drm/msm/adreno/adreno_snapshot.h  |  526 ++++
 .../drm/msm/adreno/catalog/adreno_glymur.h    | 2315 ++++++++++++++++
 .../gpu/drm/msm/adreno/catalog/adreno_hawi.h  | 2410 +++++++++++++++++
 .../drm/msm/adreno/catalog/adreno_kaanapali.h | 2339 ++++++++++++++++
 .../gpu/drm/msm/adreno/catalog/adreno_maili.h | 1900 +++++++++++++
 .../gpu/drm/msm/adreno/catalog/adreno_milos.h | 1994 ++++++++++++++
 .../drm/msm/adreno/catalog/adreno_pakala.h    | 2178 +++++++++++++++
 15 files changed, 15583 insertions(+), 652 deletions(-)
 create mode 100644 drivers/gpu/drm/msm/adreno/a8xx_gpu_state.c
 create mode 100644 drivers/gpu/drm/msm/adreno/adreno_gen8_snapshot.h
 create mode 100644 drivers/gpu/drm/msm/adreno/adreno_snapshot.h
 create mode 100644 drivers/gpu/drm/msm/adreno/catalog/adreno_glymur.h
 create mode 100644 drivers/gpu/drm/msm/adreno/catalog/adreno_hawi.h
 create mode 100644 drivers/gpu/drm/msm/adreno/catalog/adreno_kaanapali.h
 create mode 100644 drivers/gpu/drm/msm/adreno/catalog/adreno_maili.h
 create mode 100644 drivers/gpu/drm/msm/adreno/catalog/adreno_milos.h
 create mode 100644 drivers/gpu/drm/msm/adreno/catalog/adreno_pakala.h

-- 
2.56.0