diff options
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource_helpers.c | 51 |
1 files changed, 5 insertions, 46 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource_helpers.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource_helpers.c index 7eec39576e2c..4882c3684b82 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource_helpers.c +++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource_helpers.c @@ -255,8 +255,6 @@ bool dcn32_is_psr_capable(struct pipe_ctx *pipe) return psr_capable; } -#define DCN3_2_NEW_DET_OVERRIDE_MIN_MULTIPLIER 7 - /** * dcn32_determine_det_override(): Determine DET allocation for each pipe * @@ -267,6 +265,7 @@ bool dcn32_is_psr_capable(struct pipe_ctx *pipe) * If there is a plane that's driven by more than 1 pipe (i.e. pipe split), then the * number of DET for that given plane will be split among the pipes driving that plane. * + * * High level algorithm: * 1. Split total DET among number of streams * 2. For each stream, split DET among the planes @@ -274,21 +273,9 @@ bool dcn32_is_psr_capable(struct pipe_ctx *pipe) * among those pipes. * 4. Assign the DET override to the DML pipes. * - * Special cases: - * - * For two displays that have a large difference in pixel rate, we may experience - * underflow on the larger display when we divide the DET equally. For this, we - * will implement a modified algorithm to assign more DET to larger display. - * - * 1. Calculate difference in pixel rates ( multiplier ) between two displays - * 2. If the multiplier exceeds DCN3_2_NEW_DET_OVERRIDE_MIN_MULTIPLIER, then - * implement the modified DET override algorithm. - * 3. Assign smaller DET size for lower pixel display and higher DET size for - * higher pixel display - * - * @dc: Current DC state - * @context: New DC state to be programmed - * @pipes: Array of DML pipes + * @param [in]: dc: Current DC state + * @param [in]: context: New DC state to be programmed + * @param [in]: pipes: Array of DML pipes * * Return: void */ @@ -303,31 +290,10 @@ void dcn32_determine_det_override(struct dc *dc, struct dc_plane_state *current_plane = NULL; uint8_t stream_count = 0; - int phy_pix_clk_mult, lower_mode_stream_index; - int phy_pix_clk[MAX_PIPES] = {0}; - bool use_new_det_override_algorithm = false; - for (i = 0; i < context->stream_count; i++) { /* Don't count SubVP streams for DET allocation */ - if (context->streams[i]->mall_stream_config.type != SUBVP_PHANTOM) { - phy_pix_clk[i] = context->streams[i]->phy_pix_clk; + if (context->streams[i]->mall_stream_config.type != SUBVP_PHANTOM) stream_count++; - } - } - - /* Check for special case with two displays, one with much higher pixel rate */ - if (stream_count == 2) { - ASSERT((phy_pix_clk[0] > 0) && (phy_pix_clk[1] > 0)); - if (phy_pix_clk[0] < phy_pix_clk[1]) { - lower_mode_stream_index = 0; - phy_pix_clk_mult = phy_pix_clk[1] / phy_pix_clk[0]; - } else { - lower_mode_stream_index = 1; - phy_pix_clk_mult = phy_pix_clk[0] / phy_pix_clk[1]; - } - - if (phy_pix_clk_mult >= DCN3_2_NEW_DET_OVERRIDE_MIN_MULTIPLIER) - use_new_det_override_algorithm = true; } if (stream_count > 0) { @@ -336,13 +302,6 @@ void dcn32_determine_det_override(struct dc *dc, if (context->streams[i]->mall_stream_config.type == SUBVP_PHANTOM) continue; - if (use_new_det_override_algorithm) { - if (i == lower_mode_stream_index) - stream_segments = 4; - else - stream_segments = 14; - } - if (context->stream_status[i].plane_count > 0) plane_segments = stream_segments / context->stream_status[i].plane_count; else |