[PATCH 0/2] drm/i915/gt: Expose per gt defaults in sysfs

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

Create a gt/gtN/.defaults/ directory (similar to
engine/<engine-name>/.defaults/) to expose default parameter values for each
gt in sysfs. This allows userspace to restore default parameter values
after they may have changed.

Patch 1: Creates the gt/gtN/.defaults/ directory
Patch 2: Adds per-gt RPS defaults (rps_max_freq_mhz and rps_min_freq_mhz)
	 to gt/gtN/.defaults/

An approved Level-0/oneAPI UMD pull request which consumes the exposed
defaults can be seen here:
	https://github.com/intel/compute-runtime/pull/552
The UMD pull request will be merged if/after this series is merged to i915.

Previous discussion on these patches can be seen here:
	https://patchwork.freedesktop.org/patch/484238/?series=102665&rev=4
	https://patchwork.freedesktop.org/patch/483988/?series=102665&rev=3

Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>

Ashutosh Dixit (2):
  drm/i915/gt: Create gt/gtN/.defaults/ for per gt sysfs defaults
  drm/i915/gt: Expose per-gt RPS defaults in sysfs

 drivers/gpu/drm/i915/gt/intel_gt_sysfs.c    | 10 +++---
 drivers/gpu/drm/i915/gt/intel_gt_sysfs.h    |  6 ++++
 drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c | 34 +++++++++++++++++++++
 drivers/gpu/drm/i915/gt/intel_gt_types.h    |  9 ++++++
 drivers/gpu/drm/i915/gt/intel_rps.c         |  2 ++
 drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c | 12 +++++---
 6 files changed, 64 insertions(+), 9 deletions(-)

-- 
2.34.1