[Intel-gfx] [PATCH v9 00/11] Enable i915 perf stream for Haswell OA unit

[Robert Bragg]

Rebased and updated with more feedback from Sourab and Matt.

In particular the patch that added the oa_min_timer_exponent sysctl parameter
has now been replaced with one adding an oa_max_sample_rate parameter in Hz.

This way userspace policy won't need to be tailored to different systems when
gen9 OA is enabled where the exponents don't represent the same periods as for
Haswell.

- Robert

Robert Bragg (11):
  drm/i915: Add i915 perf infrastructure
  drm/i915: rename OACONTROL GEN7_OACONTROL
  drm/i915: return EACCES for check_cmd() failures
  drm/i915: don't whitelist oacontrol in cmd parser
  drm/i915: Add 'render basic' Haswell OA unit config
  drm/i915: Enable i915 perf stream for Haswell OA unit
  drm/i915: advertise available metrics via sysfs
  drm/i915: Add dev.i915.perf_stream_paranoid sysctl option
  drm/i915: add dev.i915.oa_max_sample_rate sysctl
  drm/i915: Add more Haswell OA metric sets
  drm/i915: Add a kerneldoc summary for i915_perf.c

 drivers/gpu/drm/i915/Makefile          |    4 +
 drivers/gpu/drm/i915/gvt/handlers.c    |    2 +-
 drivers/gpu/drm/i915/i915_cmd_parser.c |   45 +-
 drivers/gpu/drm/i915/i915_drv.c        |    9 +
 drivers/gpu/drm/i915/i915_drv.h        |  156 +++
 drivers/gpu/drm/i915/i915_oa_hsw.c     |  752 ++++++++++++++
 drivers/gpu/drm/i915/i915_oa_hsw.h     |   38 +
 drivers/gpu/drm/i915/i915_perf.c       | 1753 ++++++++++++++++++++++++++++++++
 drivers/gpu/drm/i915/i915_reg.h        |  340 ++++++-
 include/uapi/drm/i915_drm.h            |  134 +++
 10 files changed, 3193 insertions(+), 40 deletions(-)
 create mode 100644 drivers/gpu/drm/i915/i915_oa_hsw.c
 create mode 100644 drivers/gpu/drm/i915/i915_oa_hsw.h
 create mode 100644 drivers/gpu/drm/i915/i915_perf.c

-- 
2.10.1