From: Alvin Lee <alvin.lee2@xxxxxxx>
[Description]
Revert commit that refactors SubVP calculation incorrectly.
Reviewed-by: Chaitanya Dhere <chaitanya.dhere@xxxxxxx>
Acked-by: Tom Chung <chiahsuan.chung@xxxxxxx>
Signed-off-by: Alvin Lee <alvin.lee2@xxxxxxx>
---
drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c | 67 ++++++++++----------
1 file changed, 33 insertions(+), 34 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
index 2d61c2a91cee..c7582f834a43 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
+++ b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
@@ -433,28 +433,27 @@ static void populate_subvp_cmd_drr_info(struct dc *dc,
pipe_data->pipe_config.vblank_data.drr_info.use_ramping = false; // for now don't use ramping
pipe_data->pipe_config.vblank_data.drr_info.drr_window_size_ms = 4; // hardcode 4ms DRR window for now
- drr_frame_us = div64_s64(drr_timing->v_total * drr_timing->h_total,
- (int64_t)(drr_timing->pix_clk_100hz * 100) * 1000000);
+ drr_frame_us = drr_timing->v_total * drr_timing->h_total /
+ (double)(drr_timing->pix_clk_100hz * 100) * 1000000;
// P-State allow width and FW delays already included phantom_timing->v_addressable
- mall_region_us = div64_s64(phantom_timing->v_addressable * phantom_timing->h_total,
- (int64_t)(phantom_timing->pix_clk_100hz * 100) * 1000000);
+ mall_region_us = phantom_timing->v_addressable * phantom_timing->h_total /
+ (double)(phantom_timing->pix_clk_100hz * 100) * 1000000;
min_drr_supported_us = drr_frame_us + mall_region_us + SUBVP_DRR_MARGIN_US;
- min_vtotal_supported = div64_s64(drr_timing->pix_clk_100hz * 100 *
- (div64_s64((int64_t)min_drr_supported_us, 1000000)),
- (int64_t)drr_timing->h_total);
-
- prefetch_us = div64_s64((phantom_timing->v_total - phantom_timing->v_front_porch) * phantom_timing->h_total,
- (int64_t)(phantom_timing->pix_clk_100hz * 100) * 1000000 +
- dc->caps.subvp_prefetch_end_to_mall_start_us);
- subvp_active_us = div64_s64(main_timing->v_addressable * main_timing->h_total,
- (int64_t)(main_timing->pix_clk_100hz * 100) * 1000000);
- drr_active_us = div64_s64(drr_timing->v_addressable * drr_timing->h_total,
- (int64_t)(drr_timing->pix_clk_100hz * 100) * 1000000);
- max_drr_vblank_us = div64_s64((int64_t)(subvp_active_us - prefetch_us - drr_active_us), 2) + drr_active_us;
+ min_vtotal_supported = drr_timing->pix_clk_100hz * 100 * ((double)min_drr_supported_us / 1000000) /
+ (double)drr_timing->h_total;
+
+ prefetch_us = (phantom_timing->v_total - phantom_timing->v_front_porch) * phantom_timing->h_total /
+ (double)(phantom_timing->pix_clk_100hz * 100) * 1000000 +
+ dc->caps.subvp_prefetch_end_to_mall_start_us;
+ subvp_active_us = main_timing->v_addressable * main_timing->h_total /
+ (double)(main_timing->pix_clk_100hz * 100) * 1000000;
+ drr_active_us = drr_timing->v_addressable * drr_timing->h_total /
+ (double)(drr_timing->pix_clk_100hz * 100) * 1000000;
+ max_drr_vblank_us = (double)(subvp_active_us - prefetch_us - drr_active_us) / 2 + drr_active_us;
max_drr_mallregion_us = subvp_active_us - prefetch_us - mall_region_us;
max_drr_supported_us = max_drr_vblank_us > max_drr_mallregion_us ? max_drr_vblank_us : max_drr_mallregion_us;
- max_vtotal_supported = div64_s64(drr_timing->pix_clk_100hz * 100 * (div64_s64((int64_t)max_drr_supported_us, 1000000)),
- (int64_t)drr_timing->h_total);
+ max_vtotal_supported = drr_timing->pix_clk_100hz * 100 * ((double)max_drr_supported_us / 1000000) /
+ (double)drr_timing->h_total;
pipe_data->pipe_config.vblank_data.drr_info.min_vtotal_supported = min_vtotal_supported;
pipe_data->pipe_config.vblank_data.drr_info.max_vtotal_supported = max_vtotal_supported;
@@ -548,10 +547,10 @@ static void update_subvp_prefetch_end_to_mall_start(struct dc *dc,
struct dc_crtc_timing *phantom_timing1 = &subvp_pipes[1]->stream->mall_stream_config.paired_stream->timing;
struct dmub_cmd_fw_assisted_mclk_switch_pipe_data_v2 *pipe_data = NULL;
- subvp0_prefetch_us = div64_s64((phantom_timing0->v_total - phantom_timing0->v_front_porch) * phantom_timing0->h_total,
- (int64_t)(phantom_timing0->pix_clk_100hz * 100) * 1000000 + dc->caps.subvp_prefetch_end_to_mall_start_us);
- subvp1_prefetch_us = div64_s64((phantom_timing1->v_total - phantom_timing1->v_front_porch) * phantom_timing1->h_total,
- (int64_t)(phantom_timing1->pix_clk_100hz * 100) * 1000000 + dc->caps.subvp_prefetch_end_to_mall_start_us);
+ subvp0_prefetch_us = (phantom_timing0->v_total - phantom_timing0->v_front_porch) * phantom_timing0->h_total /
+ (double)(phantom_timing0->pix_clk_100hz * 100) * 1000000 + dc->caps.subvp_prefetch_end_to_mall_start_us;
+ subvp1_prefetch_us = (phantom_timing1->v_total - phantom_timing1->v_front_porch) * phantom_timing1->h_total /
+ (double)(phantom_timing1->pix_clk_100hz * 100) * 1000000 + dc->caps.subvp_prefetch_end_to_mall_start_us;
// Whichever SubVP PIPE has the smaller prefetch (including the prefetch end to mall start time)
// should increase it's prefetch time to match the other
@@ -559,16 +558,16 @@ static void update_subvp_prefetch_end_to_mall_start(struct dc *dc,
pipe_data = &cmd->fw_assisted_mclk_switch_v2.config_data.pipe_data[1];
prefetch_delta_us = subvp0_prefetch_us - subvp1_prefetch_us;
pipe_data->pipe_config.subvp_data.prefetch_to_mall_start_lines =
- div64_s64(((div64_s64((int64_t)(dc->caps.subvp_prefetch_end_to_mall_start_us + prefetch_delta_us), 1000000)) *
- (phantom_timing1->pix_clk_100hz * 100) + phantom_timing1->h_total - 1),
- (int64_t)phantom_timing1->h_total);
+ (((double)(dc->caps.subvp_prefetch_end_to_mall_start_us + prefetch_delta_us) / 1000000) *
+ (phantom_timing1->pix_clk_100hz * 100) + phantom_timing1->h_total - 1) /
+ (double)phantom_timing1->h_total;
} else if (subvp1_prefetch_us > subvp0_prefetch_us) {
pipe_data = &cmd->fw_assisted_mclk_switch_v2.config_data.pipe_data[0];
prefetch_delta_us = subvp1_prefetch_us - subvp0_prefetch_us;
pipe_data->pipe_config.subvp_data.prefetch_to_mall_start_lines =
- div64_s64(((div64_s64((int64_t)(dc->caps.subvp_prefetch_end_to_mall_start_us + prefetch_delta_us), 1000000)) *
- (phantom_timing0->pix_clk_100hz * 100) + phantom_timing0->h_total - 1),
- (int64_t)phantom_timing0->h_total);
+ (((double)(dc->caps.subvp_prefetch_end_to_mall_start_us + prefetch_delta_us) / 1000000) *
+ (phantom_timing0->pix_clk_100hz * 100) + phantom_timing0->h_total - 1) /
+ (double)phantom_timing0->h_total;
}
}
@@ -619,13 +618,13 @@ static void populate_subvp_cmd_pipe_info(struct dc *dc,
// Round up
pipe_data->pipe_config.subvp_data.prefetch_to_mall_start_lines =
- div64_s64(((div64_s64((int64_t)dc->caps.subvp_prefetch_end_to_mall_start_us, 1000000)) *
- (phantom_timing->pix_clk_100hz * 100) + phantom_timing->h_total - 1),
- (int64_t)phantom_timing->h_total);
+ (((double)dc->caps.subvp_prefetch_end_to_mall_start_us / 1000000) *
+ (phantom_timing->pix_clk_100hz * 100) + phantom_timing->h_total - 1) /
+ (double)phantom_timing->h_total;
pipe_data->pipe_config.subvp_data.processing_delay_lines =
- div64_s64(((div64_s64((int64_t)dc->caps.subvp_fw_processing_delay_us, 1000000)) *
- (phantom_timing->pix_clk_100hz * 100) + phantom_timing->h_total - 1),
- (int64_t)phantom_timing->h_total);
+ (((double)dc->caps.subvp_fw_processing_delay_us / 1000000) *
+ (phantom_timing->pix_clk_100hz * 100) + phantom_timing->h_total - 1) /
+ (double)phantom_timing->h_total;
// Find phantom pipe index based on phantom stream
for (j = 0; j < dc->res_pool->pipe_count; j++) {
struct pipe_ctx *phantom_pipe = &context->res_ctx.pipe_ctx[j];
--
2.25.1
