diff options
| author | Aurabindo Pillai <aurabindo.pillai@amd.com> | 2023-08-16 16:03:20 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-08-30 15:37:59 -0400 |
| commit | 07926ba8a44f0ca9165ee2fb17c9afc7908c3b2b (patch) | |
| tree | 3f75ab988075752317e49d4ccaf730731550161f /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | |
| parent | d755ce6465cab1e60661f329db9eef8594403cf9 (diff) | |
drm/amd/display: Add debugfs interface for ODM combine info
[Why]
For use with IGT tests in userspace, the number of ODM segments in use
is required to be exposed to userspace to verify that ODM Combine is
working as expected when special timings are committed.
[How]
Add a connector specific debugfs entry that prints the number of ODM
segments in use.
Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c index 0c4dd922cfaf..17d1990ea832 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c @@ -1201,6 +1201,35 @@ static int internal_display_show(struct seq_file *m, void *data) return 0; } +/* + * Returns the number of segments used if ODM Combine mode is enabled. + * Example usage: cat /sys/kernel/debug/dri/0/DP-1/odm_combine_segments + */ +static int odm_combine_segments_show(struct seq_file *m, void *unused) +{ + struct drm_connector *connector = m->private; + struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector); + struct dc_link *link = aconnector->dc_link; + struct pipe_ctx *pipe_ctx = NULL; + int i, segments = 0; + + for (i = 0; i < MAX_PIPES; i++) { + pipe_ctx = &link->dc->current_state->res_ctx.pipe_ctx[i]; + if (pipe_ctx->stream && + pipe_ctx->stream->link == link) + break; + } + + if (connector->status != connector_status_connected) + return -ENODEV; + + if (pipe_ctx != NULL && pipe_ctx->stream_res.tg->funcs->get_odm_combine_segments) + pipe_ctx->stream_res.tg->funcs->get_odm_combine_segments(pipe_ctx->stream_res.tg, &segments); + + seq_printf(m, "%d\n", segments); + return 0; +} + /* function description * * generic SDP message access for testing @@ -2713,6 +2742,7 @@ DEFINE_SHOW_ATTRIBUTE(dmub_tracebuffer); DEFINE_SHOW_ATTRIBUTE(dp_lttpr_status); DEFINE_SHOW_ATTRIBUTE(hdcp_sink_capability); DEFINE_SHOW_ATTRIBUTE(internal_display); +DEFINE_SHOW_ATTRIBUTE(odm_combine_segments); DEFINE_SHOW_ATTRIBUTE(psr_capability); DEFINE_SHOW_ATTRIBUTE(dp_is_mst_connector); DEFINE_SHOW_ATTRIBUTE(dp_mst_progress_status); @@ -2991,7 +3021,8 @@ static const struct { } connector_debugfs_entries[] = { {"force_yuv420_output", &force_yuv420_output_fops}, {"trigger_hotplug", &trigger_hotplug_debugfs_fops}, - {"internal_display", &internal_display_fops} + {"internal_display", &internal_display_fops}, + {"odm_combine_segments", &odm_combine_segments_fops} }; /* |