[Intel-gfx] [PATCH 0/8] drm/i915: Media freq factor and per-gt enhancements/fixes

[Ashutosh Dixit]

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
* Patch 3 extends previous pcode functions for multiple gt's and patch 4 adds
  a couple of pcode helpers
* Patch 5 uses the new pcode functions to retrieve media RP0/RPn frequencies
* Patch 6 fixes memory leaks in the previous per-gt sysfs implementation and
  some code refactoring
* Patch 7 creates a gt/gtN/.defaults directory to expose default RPS
  parameter values in the per-gt sysfs
* Patch 8 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: deb07be64c3930945a0e7bd17989fda4ed2e5ece.1649870633.git.ashutosh.dixit at intel.com

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

Ashutosh Dixit (8):
  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/pcode: Add a couple of pcode helpers
  drm/i915/gt: Add media RP0/RPn to per-gt sysfs
  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

 drivers/gpu/drm/i915/gt/intel_gt.c            |   1 +
 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_rps.c           |   3 +
 .../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 ++-
 18 files changed, 483 insertions(+), 84 deletions(-)

-- 
2.34.1