drm/i915/debugfs: add crtc i915_pipe debugfs file

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The pipe may differ from crtc index if pipes are fused off. For testing
purposes, IGT needs to know the pipe.

There's already a I915_GET_PIPE_FROM_CRTC_ID IOCTL for this. However,
the upcoming Xe driver won't have that IOCTL, and going forward, we'll
want a unified interface for testing i915 and Xe, as they share the
display code. Thus add the debugfs for i915 display.

v2: User letters for pipe names (Ville)

Cc: Bhanuprakash Modem <bhanuprakash.modem@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Tested-by: Bhanuprakash Modem <bhanuprakash.modem@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230320124429.786985-2-jani.nikula@intel.com

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This commit is contained in:

Jani Nikula 2023-03-20 14:44:29 +02:00

parent 014f0515a9

commit cf6c422bf5

1 changed files with 13 additions and 0 deletions

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drivers/gpu/drm/i915/display/intel_display_debugfs.c

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