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drm/amd/display: program v_update and v_ready with proper field
authorSu Sung Chung <su.chung@amd.com>
Fri, 7 Sep 2018 20:51:42 +0000 (16:51 -0400)
committerAlex Deucher <alexander.deucher@amd.com>
Thu, 27 Sep 2018 02:09:06 +0000 (21:09 -0500)
[WHY]
There are two different variables used to calculate v_update and v_ready,
one for validation and the other for performance parameter calculation.
Before the variable for validation was used which caused underflow on
1080edp with vsr enabled

[HOW]
program v_update and v_ready with the variables for performance parameter
calculation

Signed-off-by: Su Sung Chung <su.chung@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.c
drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c
drivers/gpu/drm/amd/display/dc/inc/dcn_calcs.h

index 5e2ea12..d0fc54f 100644 (file)
@@ -1625,11 +1625,11 @@ void dispclkdppclkdcfclk_deep_sleep_prefetch_parameters_watermarks_and_performan
                                else {
                                        v->dsty_after_scaler = 0.0;
                                }
-                               v->v_update_offset_pix =dcn_bw_ceil2(v->htotal[k] / 4.0, 1.0);
+                               v->v_update_offset_pix[k] = dcn_bw_ceil2(v->htotal[k] / 4.0, 1.0);
                                v->total_repeater_delay_time = v->max_inter_dcn_tile_repeaters * (2.0 / v->dppclk + 3.0 / v->dispclk);
-                               v->v_update_width_pix = (14.0 / v->dcf_clk_deep_sleep + 12.0 / v->dppclk + v->total_repeater_delay_time) * v->pixel_clock[k];
-                               v->v_ready_offset_pix =dcn_bw_max2(150.0 / v->dppclk, v->total_repeater_delay_time + 20.0 / v->dcf_clk_deep_sleep + 10.0 / v->dppclk) * v->pixel_clock[k];
-                               v->t_setup = (v->v_update_offset_pix + v->v_update_width_pix + v->v_ready_offset_pix) / v->pixel_clock[k];
+                               v->v_update_width_pix[k] = (14.0 / v->dcf_clk_deep_sleep + 12.0 / v->dppclk + v->total_repeater_delay_time) * v->pixel_clock[k];
+                               v->v_ready_offset_pix[k] = dcn_bw_max2(150.0 / v->dppclk, v->total_repeater_delay_time + 20.0 / v->dcf_clk_deep_sleep + 10.0 / v->dppclk) * v->pixel_clock[k];
+                               v->t_setup = (v->v_update_offset_pix[k] + v->v_update_width_pix[k] + v->v_ready_offset_pix[k]) / v->pixel_clock[k];
                                v->v_startup[k] =dcn_bw_min2(v->v_startup_lines, v->max_vstartup_lines[k]);
                                if (v->prefetch_mode == 0.0) {
                                        v->t_wait =dcn_bw_max3(v->dram_clock_change_latency + v->urgent_latency, v->sr_enter_plus_exit_time, v->urgent_latency);
index 80ec09e..3208188 100644 (file)
@@ -1096,9 +1096,9 @@ bool dcn_validate_bandwidth(
                        if (pipe->top_pipe && pipe->top_pipe->plane_state == pipe->plane_state)
                                continue;
 
-                       pipe->pipe_dlg_param.vupdate_width = v->v_update_width[input_idx][v->dpp_per_plane[input_idx] == 2 ? 1 : 0];
-                       pipe->pipe_dlg_param.vupdate_offset = v->v_update_offset[input_idx][v->dpp_per_plane[input_idx] == 2 ? 1 : 0];
-                       pipe->pipe_dlg_param.vready_offset = v->v_ready_offset[input_idx][v->dpp_per_plane[input_idx] == 2 ? 1 : 0];
+                       pipe->pipe_dlg_param.vupdate_width = v->v_update_width_pix[input_idx];
+                       pipe->pipe_dlg_param.vupdate_offset = v->v_update_offset_pix[input_idx];
+                       pipe->pipe_dlg_param.vready_offset = v->v_ready_offset_pix[input_idx];
                        pipe->pipe_dlg_param.vstartup_start = v->v_startup[input_idx];
 
                        pipe->pipe_dlg_param.htotal = pipe->stream->timing.h_total;
@@ -1137,9 +1137,9 @@ bool dcn_validate_bandwidth(
                                         TIMING_3D_FORMAT_SIDE_BY_SIDE))) {
                                        if (hsplit_pipe && hsplit_pipe->plane_state == pipe->plane_state) {
                                                /* update previously split pipe */
-                                               hsplit_pipe->pipe_dlg_param.vupdate_width = v->v_update_width[input_idx][v->dpp_per_plane[input_idx] == 2 ? 1 : 0];
-                                               hsplit_pipe->pipe_dlg_param.vupdate_offset = v->v_update_offset[input_idx][v->dpp_per_plane[input_idx] == 2 ? 1 : 0];
-                                               hsplit_pipe->pipe_dlg_param.vready_offset = v->v_ready_offset[input_idx][v->dpp_per_plane[input_idx] == 2 ? 1 : 0];
+                                               hsplit_pipe->pipe_dlg_param.vupdate_width = v->v_update_width_pix[input_idx];
+                                               hsplit_pipe->pipe_dlg_param.vupdate_offset = v->v_update_offset_pix[input_idx];
+                                               hsplit_pipe->pipe_dlg_param.vready_offset = v->v_ready_offset_pix[input_idx];
                                                hsplit_pipe->pipe_dlg_param.vstartup_start = v->v_startup[input_idx];
 
                                                hsplit_pipe->pipe_dlg_param.htotal = pipe->stream->timing.h_total;
index ddbb673..e688eb9 100644 (file)
@@ -504,10 +504,10 @@ struct dcn_bw_internal_vars {
        float prefetch_mode;
        float dstx_after_scaler;
        float dsty_after_scaler;
-       float v_update_offset_pix;
+       float v_update_offset_pix[number_of_planes_minus_one + 1];
        float total_repeater_delay_time;
-       float v_update_width_pix;
-       float v_ready_offset_pix;
+       float v_update_width_pix[number_of_planes_minus_one + 1];
+       float v_ready_offset_pix[number_of_planes_minus_one + 1];
        float t_setup;
        float t_wait;
        float bandwidth_available_for_immediate_flip;