[Intel-gfx] [PATCH 00/15] Enable OA unit for Gen 8 and 9 in i915 perf

[Lionel Landwerlin]

Hi,

Taking over from Rob for this v5. This series only has the following
changes from v4 :

 - patch 9 & 10 : updated number for GETPARAM after rebase

 - patch 12 : drain the GPU before reconfiguring the OA unit to work
   around a race condition where the CPU & GPU update the context
   image at the same time (see gen8_configure_all_contexts)

The second item had been causing instabilities for a while in the IGT
tests. With that out of the way, tests are a lot more stable now.

Cheers,

Robert Bragg (15):
  drm/i915/perf: fix gen7_append_oa_reports comment
  drm/i915/perf: avoid poll, read, EAGAIN busy loops
  drm/i915/perf: avoid read back of head register
  drm/i915/perf: no head/tail ref in gen7_oa_read
  drm/i915/perf: improve tail race workaround
  drm/i915/perf: improve invalid OA format debug message
  drm/i915/perf: better pipeline aged/aging tail updates
  drm/i915/perf: rate limit spurious oa report notice
  drm/i915: expose _SLICE_MASK GETPARM
  drm/i915: expose _SUBSLICE_MASK GETPARM
  drm/i915/perf: Add 'render basic' Gen8+ OA unit configs
  drm/i915/perf: Add OA unit support for Gen 8+
  drm/i915/perf: Add more OA configs for BDW, CHV, SKL + BXT
  drm/i915/perf: per-gen timebase for checking sample freq
  drm/i915/perf: remove perf.hook_lock

 drivers/gpu/drm/i915/Makefile           |    8 +-
 drivers/gpu/drm/i915/i915_drv.c         |   10 +
 drivers/gpu/drm/i915/i915_drv.h         |  121 +-
 drivers/gpu/drm/i915/i915_gem_context.h |    1 +
 drivers/gpu/drm/i915/i915_oa_bdw.c      | 5154 +++++++++++++++++++++++++++++++
 drivers/gpu/drm/i915/i915_oa_bdw.h      |   38 +
 drivers/gpu/drm/i915/i915_oa_bxt.c      | 2541 +++++++++++++++
 drivers/gpu/drm/i915/i915_oa_bxt.h      |   38 +
 drivers/gpu/drm/i915/i915_oa_chv.c      | 2730 ++++++++++++++++
 drivers/gpu/drm/i915/i915_oa_chv.h      |   38 +
 drivers/gpu/drm/i915/i915_oa_hsw.c      |   58 +-
 drivers/gpu/drm/i915/i915_oa_sklgt2.c   | 3302 ++++++++++++++++++++
 drivers/gpu/drm/i915/i915_oa_sklgt2.h   |   38 +
 drivers/gpu/drm/i915/i915_oa_sklgt3.c   | 2856 +++++++++++++++++
 drivers/gpu/drm/i915/i915_oa_sklgt3.h   |   38 +
 drivers/gpu/drm/i915/i915_oa_sklgt4.c   | 2910 +++++++++++++++++
 drivers/gpu/drm/i915/i915_oa_sklgt4.h   |   38 +
 drivers/gpu/drm/i915/i915_perf.c        | 1361 ++++++--
 drivers/gpu/drm/i915/i915_reg.h         |   22 +
 drivers/gpu/drm/i915/intel_lrc.c        |    5 +
 include/uapi/drm/i915_drm.h             |   27 +-
 21 files changed, 21096 insertions(+), 238 deletions(-)
 create mode 100644 drivers/gpu/drm/i915/i915_oa_bdw.c
 create mode 100644 drivers/gpu/drm/i915/i915_oa_bdw.h
 create mode 100644 drivers/gpu/drm/i915/i915_oa_bxt.c
 create mode 100644 drivers/gpu/drm/i915/i915_oa_bxt.h
 create mode 100644 drivers/gpu/drm/i915/i915_oa_chv.c
 create mode 100644 drivers/gpu/drm/i915/i915_oa_chv.h
 create mode 100644 drivers/gpu/drm/i915/i915_oa_sklgt2.c
 create mode 100644 drivers/gpu/drm/i915/i915_oa_sklgt2.h
 create mode 100644 drivers/gpu/drm/i915/i915_oa_sklgt3.c
 create mode 100644 drivers/gpu/drm/i915/i915_oa_sklgt3.h
 create mode 100644 drivers/gpu/drm/i915/i915_oa_sklgt4.c
 create mode 100644 drivers/gpu/drm/i915/i915_oa_sklgt4.h

--
2.11.0