On Mon, 20 Mar 2023, "Modem, Bhanuprakash" <bhanuprakash.modem@xxxxxxxxx> wrote: > On Mon-20-03-2023 06:14 pm, Jani Nikula wrote: >> 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@xxxxxxxxx> >> Reviewed-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> >> Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx> > > With IGT [1], this patch is > > Tested-by: Bhanuprakash Modem <bhanuprakash.modem@xxxxxxxxx> Thanks, pushed to drm-intel-next. It'll take a moment for that to be part of the baseline for testing. Please re-run the tests for [1] after that. BR, Jani. > > [1]: > https://patchwork.freedesktop.org/patch/msgid/20230320131342.2980032-1-bhanuprakash.modem@xxxxxxxxx > > - Bhanu > >> --- >> .../gpu/drm/i915/display/intel_display_debugfs.c | 13 +++++++++++++ >> 1 file changed, 13 insertions(+) >> >> diff --git a/drivers/gpu/drm/i915/display/intel_display_debugfs.c b/drivers/gpu/drm/i915/display/intel_display_debugfs.c >> index 3c76e718b951..cc5026272558 100644 >> --- a/drivers/gpu/drm/i915/display/intel_display_debugfs.c >> +++ b/drivers/gpu/drm/i915/display/intel_display_debugfs.c >> @@ -1383,6 +1383,17 @@ static int i915_current_bpc_show(struct seq_file *m, void *data) >> } >> DEFINE_SHOW_ATTRIBUTE(i915_current_bpc); >> >> +/* Pipe may differ from crtc index if pipes are fused off */ >> +static int intel_crtc_pipe_show(struct seq_file *m, void *unused) >> +{ >> + struct intel_crtc *crtc = m->private; >> + >> + seq_printf(m, "%c\n", pipe_name(crtc->pipe)); >> + >> + return 0; >> +} >> +DEFINE_SHOW_ATTRIBUTE(intel_crtc_pipe); >> + >> /** >> * intel_connector_debugfs_add - add i915 specific connector debugfs files >> * @connector: pointer to a registered drm_connector >> @@ -1453,4 +1464,6 @@ void intel_crtc_debugfs_add(struct intel_crtc *crtc) >> >> debugfs_create_file("i915_current_bpc", 0444, root, crtc, >> &i915_current_bpc_fops); >> + debugfs_create_file("i915_pipe", 0444, root, crtc, >> + &intel_crtc_pipe_fops); >> } -- Jani Nikula, Intel Open Source Graphics Center
