[Intel-gfx] [PATCH v2 0/9] drm/i915: Media freq factor and per-gt enhancements/fixes

[Ashutosh Dixit <ashutosh.dixit@intel.com>]

Some recent Intel dGfx platforms allow media IP to work at a different
frequency from the base GT. This patch series exposes sysfs controls for
this functionality in the new per-gt sysfs. Some enhancements and fixes to
previous per-gt functionality are also included to complete the new
functionality:
* Patches 1 and 2 implement basic sysfs controls for media freq
* Patches 3 and 4 extend previous pcode functions for multiple gt's and
  patch 5 adds a couple of pcode helpers
* Patch 6 uses the new pcode functions to retrieve media RP0/RPn frequencies
* Patch 7 fixes memory leaks in the previous per-gt sysfs implementation and
  some code refactoring
* Patch 8 creates a gt/gtN/.defaults directory to expose default RPS
  parameter values in the per-gt sysfs
* Patch 9 adds the default value for media_freq_factor to gt/gtN/.defaults

IGT tests for this new functionality have also been posted at:

  https://patchwork.freedesktop.org/series/102664/

Test-with: 85c51c99da76e3fe286ed28e80fa964e148f6020.1650435058.git.ashutosh.dixit@intel.com

v2: Fixed commit author on patches 5 and 6 (Rodrigo)
    Added new patch 4

Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Andi Shyti <andi.shyti@intel.com>

Ashutosh Dixit (7):
  drm/i915: Introduce has_media_ratio_mode
  drm/i915/gt: Add media freq factor to per-gt sysfs
  drm/i915/pcode: Extend pcode functions for multiple gt's
  drm/i915/gt: Convert callers to user per-gt pcode functions
  drm/i915/gt: Fix memory leaks in per-gt sysfs
  drm/i915/gt: Expose per-gt RPS defaults in sysfs
  drm/i915/gt: Expose default value for media_freq_factor in per-gt
    sysfs

Dale B Stimson (2):
  drm/i915/pcode: Add a couple of pcode helpers
  drm/i915/gt: Add media RP0/RPn to per-gt sysfs

 drivers/gpu/drm/i915/gt/intel_gt.c            |   1 +
 drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c |   6 +-
 drivers/gpu/drm/i915/gt/intel_gt_regs.h       |   1 +
 drivers/gpu/drm/i915/gt/intel_gt_sysfs.c      |  41 ++-
 drivers/gpu/drm/i915/gt/intel_gt_sysfs.h      |  12 +-
 drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c   | 246 ++++++++++++++++++
 drivers/gpu/drm/i915/gt/intel_gt_types.h      |  14 +
 drivers/gpu/drm/i915/gt/intel_llc.c           |   9 +-
 drivers/gpu/drm/i915/gt/intel_rc6.c           |   4 +-
 drivers/gpu/drm/i915/gt/intel_rps.c           |   9 +-
 drivers/gpu/drm/i915/gt/selftest_llc.c        |   4 +-
 drivers/gpu/drm/i915/gt/selftest_rps.c        |   4 +-
 .../drm/i915/gt/uc/abi/guc_actions_slpc_abi.h |   6 +
 drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c   |  39 ++-
 drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.h   |   1 +
 .../gpu/drm/i915/gt/uc/intel_guc_slpc_types.h |   3 +
 drivers/gpu/drm/i915/i915_drv.h               |   2 +
 drivers/gpu/drm/i915/i915_pci.c               |   2 +
 drivers/gpu/drm/i915/i915_reg.h               |  18 ++
 drivers/gpu/drm/i915/i915_sysfs.c             |   2 +
 drivers/gpu/drm/i915/intel_device_info.h      |   1 +
 drivers/gpu/drm/i915/intel_pcode.c            | 136 ++++++----
 drivers/gpu/drm/i915/intel_pcode.h            |  39 ++-
 23 files changed, 499 insertions(+), 101 deletions(-)

-- 
2.34.1