diff options
| author | Tony Cheng <[email protected]> | 2017-09-26 01:56:00 -0400 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2017-10-21 16:43:41 -0400 |
| commit | 966869d07aae2d1becfcb16b55cafd4aae3c6627 (patch) | |
| tree | 949ceabeb20f1ce39cd7a051fb3208ec18e06a48 | |
| parent | a32a7708ae8b01c191768d503c1af33b85b369d0 (diff) | |
drm/amd/display: option to maximize lb usage
experimental change for testing if max line buffer result in better stutter efficiency
for 1080p, LB can hold up to 9 line at 10bpcc, potentially add 10 line time of
latency hiding.
Signed-off-by: Tony Cheng <[email protected]>
Reviewed-by: Yongqiang Sun <[email protected]>
Acked-by: Harry Wentland <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc.h | 8 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_dscl.c | 3 |
2 files changed, 9 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h index d7afbcfb33ce..427ccbc28f51 100644 --- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -181,15 +181,19 @@ struct dc_debug { bool timing_trace; bool clock_trace; bool validation_trace; + + /* stutter efficiency related */ bool disable_stutter; + bool use_max_lb; enum dcc_option disable_dcc; + enum pipe_split_policy pipe_split_policy; + bool force_single_disp_pipe_split; + bool disable_dfs_bypass; bool disable_dpp_power_gate; bool disable_hubp_power_gate; bool disable_pplib_wm_range; bool use_dml_wm; - enum pipe_split_policy pipe_split_policy; - bool force_single_disp_pipe_split; unsigned int min_disp_clk_khz; int sr_exit_time_dpm0_ns; int sr_enter_plus_exit_time_dpm0_ns; diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_dscl.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_dscl.c index 82b8887d4973..fa2ab9952388 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_dscl.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_dscl.c @@ -507,6 +507,9 @@ static enum lb_memory_config find_lb_memory_config(struct dcn10_dpp *xfm, { enum lb_memory_config mem_cfg = LB_MEMORY_CONFIG_0; + if (xfm->base.ctx->dc->debug.use_max_lb) + return mem_cfg; + if (xfm->tf_mask->PIXEL_DEPTH) { mem_cfg = dpp10_find_lb_memory_config(scl_data); } |