[PATCH i-g-t v3 0/3] tools/intel_gpu_frequency: Add multi-GT support and Xe driver compatibility

[S Sebinraj <s.sebinraj@intel.com>]

This patch enhances intel_gpu_frequency to support Intel GPUs with
multiple Graphics Technology (GT) units and adds compatibility with
both i915 and Xe drivers. This also includes the changes to use
get, set in order and vice-versa which was resulting in assertion
errors, prior to this changes.

Key improvements:
- Add runtime GT detection using igt_sysfs_get_num_gt()
  and xe_number_gt()
- Auto-detect driver type (i915 vs Xe) using is_xe_device()
- New --gt/-t option to specify target GT (defaults to GT0)
- New --list/-l option to display available GTs
- Driver-agnostic frequency management with unified interface
- Add support for get, set inorder and vice-versa.

Driver-specific implementations:
- Frequency name mapping for Xe (RP1→rpe, RP0→rp0, RPn→rpn for Xe)

Usage examples:
  intel_gpu_frequency --get --gt 1     # Get GT1 frequencies
  intel_gpu_frequency --set 400 --gt 0 # Set GT0 frequency
  intel_gpu_frequency --list           # List available GTs

The tool now auto-detects i915 / Xe drivers and uses appropriate
interfaces.

S Sebinraj (3):
  tools/intel_gpu_frequency: Add support for get, set in order &
    vice-versa
  tools/intel_gpu_frequency: Add multi-GT support
  tools/intel_gpu_frequency: Add Xe driver support

 lib/drmtest.c               |   2 +-
 man/intel_gpu_frequency.rst |  34 +++-
 tools/intel_gpu_frequency.c | 363 +++++++++++++++++++++++++++++-------
 3 files changed, 321 insertions(+), 78 deletions(-)

-- 
2.43.0