diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display')
4 files changed, 59 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} }; /* diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_optc.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_optc.c index 8abb94f60078..e7e25c58c692 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_optc.c +++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_optc.c @@ -98,6 +98,30 @@ static void optc32_set_odm_combine(struct timing_generator *optc, int *opp_id, i optc1->opp_count = opp_cnt; } +void optc32_get_odm_combine_segments(struct timing_generator *tg, int *odm_combine_segments) +{ + struct optc *optc1 = DCN10TG_FROM_TG(tg); + int segments; + + REG_GET(OPTC_DATA_SOURCE_SELECT, OPTC_NUM_OF_INPUT_SEGMENT, &segments); + + switch (segments) { + case 0: + *odm_combine_segments = 1; + break; + case 1: + *odm_combine_segments = 2; + break; + case 3: + *odm_combine_segments = 4; + break; + /* 2 is reserved */ + case 2: + default: + *odm_combine_segments = -1; + } +} + void optc32_set_h_timing_div_manual_mode(struct timing_generator *optc, bool manual_mode) { struct optc *optc1 = DCN10TG_FROM_TG(optc); @@ -303,6 +327,7 @@ static struct timing_generator_funcs dcn32_tg_funcs = { .set_dwb_source = NULL, .set_odm_bypass = optc32_set_odm_bypass, .set_odm_combine = optc32_set_odm_combine, + .get_odm_combine_segments = optc32_get_odm_combine_segments, .set_h_timing_div_manual_mode = optc32_set_h_timing_div_manual_mode, .get_optc_source = optc2_get_optc_source, .set_out_mux = optc3_set_out_mux, diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_optc.h b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_optc.h index abf0121a1006..93cc7fc8472c 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_optc.h +++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_optc.h @@ -180,5 +180,6 @@ void dcn32_timing_generator_init(struct optc *optc1); void optc32_set_h_timing_div_manual_mode(struct timing_generator *optc, bool manual_mode); +void optc32_get_odm_combine_segments(struct timing_generator *tg, int *odm_combine_segments); #endif /* __DC_OPTC_DCN32_H__ */ diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/timing_generator.h b/drivers/gpu/drm/amd/display/dc/inc/hw/timing_generator.h index c21e7ffd5bd0..9a00a99317b2 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/hw/timing_generator.h +++ b/drivers/gpu/drm/amd/display/dc/inc/hw/timing_generator.h @@ -309,6 +309,7 @@ struct timing_generator_funcs { */ void (*set_odm_combine)(struct timing_generator *optc, int *opp_id, int opp_cnt, struct dc_crtc_timing *timing); + void (*get_odm_combine_segments)(struct timing_generator *tg, int *odm_segments); void (*set_h_timing_div_manual_mode)(struct timing_generator *optc, bool manual_mode); void (*set_gsl)(struct timing_generator *optc, const struct gsl_params *params); void (*set_gsl_source_select)(struct timing_generator *optc, |