drm/amd/display: Add debugfs for testing output colorspace
In order to IGT test colorspace we'll want to print the currently enabled colorspace on a stream. We add a new debugfs to do so, using the same scheme as current bpc reporting. This might also come in handy when debugging display issues. v4: - Fix function doc comment - Fix sRGB debug print Signed-off-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Joshua Ashton <joshua@froggi.es> Cc: Pekka Paalanen <ppaalanen@gmail.com> Cc: Sebastian Wick <sebastian.wick@redhat.com> Cc: Vitaly.Prosyak@amd.com Cc: Joshua Ashton <joshua@froggi.es> Cc: Simon Ser <contact@emersion.fr> Cc: Melissa Wen <mwen@igalia.com> Cc: dri-devel@lists.freedesktop.org Cc: amd-gfx@lists.freedesktop.org Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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@ -906,6 +906,61 @@ unlock:
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}
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}
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DEFINE_SHOW_ATTRIBUTE(amdgpu_current_bpc);
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DEFINE_SHOW_ATTRIBUTE(amdgpu_current_bpc);
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/*
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* Returns the current colorspace for the crtc.
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* Example usage: cat /sys/kernel/debug/dri/0/crtc-0/amdgpu_current_colorspace
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*/
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static int amdgpu_current_colorspace_show(struct seq_file *m, void *data)
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{
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struct drm_crtc *crtc = m->private;
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struct drm_device *dev = crtc->dev;
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struct dm_crtc_state *dm_crtc_state = NULL;
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int res = -ENODEV;
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mutex_lock(&dev->mode_config.mutex);
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drm_modeset_lock(&crtc->mutex, NULL);
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if (crtc->state == NULL)
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goto unlock;
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dm_crtc_state = to_dm_crtc_state(crtc->state);
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if (dm_crtc_state->stream == NULL)
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goto unlock;
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switch (dm_crtc_state->stream->output_color_space) {
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case COLOR_SPACE_SRGB:
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seq_printf(m, "sRGB");
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break;
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case COLOR_SPACE_YCBCR601:
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case COLOR_SPACE_YCBCR601_LIMITED:
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seq_printf(m, "BT601_YCC");
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break;
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case COLOR_SPACE_YCBCR709:
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case COLOR_SPACE_YCBCR709_LIMITED:
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seq_printf(m, "BT709_YCC");
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break;
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case COLOR_SPACE_ADOBERGB:
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seq_printf(m, "opRGB");
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break;
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case COLOR_SPACE_2020_RGB_FULLRANGE:
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seq_printf(m, "BT2020_RGB");
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break;
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case COLOR_SPACE_2020_YCBCR:
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seq_printf(m, "BT2020_YCC");
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break;
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default:
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goto unlock;
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}
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res = 0;
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unlock:
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drm_modeset_unlock(&crtc->mutex);
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mutex_unlock(&dev->mode_config.mutex);
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return res;
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}
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DEFINE_SHOW_ATTRIBUTE(amdgpu_current_colorspace);
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/*
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/*
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* Example usage:
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* Example usage:
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* Disable dsc passthrough, i.e.,: have dsc decoding at converver, not external RX
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* Disable dsc passthrough, i.e.,: have dsc decoding at converver, not external RX
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@ -3139,6 +3194,8 @@ void crtc_debugfs_init(struct drm_crtc *crtc)
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#endif
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#endif
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debugfs_create_file("amdgpu_current_bpc", 0644, crtc->debugfs_entry,
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debugfs_create_file("amdgpu_current_bpc", 0644, crtc->debugfs_entry,
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crtc, &amdgpu_current_bpc_fops);
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crtc, &amdgpu_current_bpc_fops);
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debugfs_create_file("amdgpu_current_colorspace", 0644, crtc->debugfs_entry,
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crtc, &amdgpu_current_colorspace_fops);
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}
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}
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/*
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/*
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