diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dml2/dml2_utils.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dml2/dml2_utils.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml2_utils.c b/drivers/gpu/drm/amd/display/dc/dml2/dml2_utils.c index 81b4e08f8098..0f8b3336e26d 100644 --- a/drivers/gpu/drm/amd/display/dc/dml2/dml2_utils.c +++ b/drivers/gpu/drm/amd/display/dc/dml2/dml2_utils.c @@ -404,6 +404,71 @@ void dml2_extract_watermark_set(struct dcn_watermarks *watermark, struct display watermark->cstate_pstate.cstate_exit_z8_ns = dml_get_wm_z8_stutter(dml_core_ctx) * 1000; } +unsigned int dml2_calc_max_scaled_time( + unsigned int time_per_pixel, + enum mmhubbub_wbif_mode mode, + unsigned int urgent_watermark) +{ + unsigned int time_per_byte = 0; + unsigned int total_free_entry = 0xb40; + unsigned int buf_lh_capability; + unsigned int max_scaled_time; + + if (mode == PACKED_444) /* packed mode 32 bpp */ + time_per_byte = time_per_pixel/4; + else if (mode == PACKED_444_FP16) /* packed mode 64 bpp */ + time_per_byte = time_per_pixel/8; + + if (time_per_byte == 0) + time_per_byte = 1; + + buf_lh_capability = (total_free_entry*time_per_byte*32) >> 6; /* time_per_byte is in u6.6*/ + max_scaled_time = buf_lh_capability - urgent_watermark; + return max_scaled_time; +} + +void dml2_extract_writeback_wm(struct dc_state *context, struct display_mode_lib_st *dml_core_ctx) +{ + int i, j = 0;; + struct mcif_arb_params *wb_arb_params = NULL; + struct dcn_bw_writeback *bw_writeback = NULL; + enum mmhubbub_wbif_mode wbif_mode = PACKED_444_FP16; /*for now*/ + + if (context->stream_count != 0) { + for (i = 0; i < context->stream_count; i++) { + if (context->streams[i]->num_wb_info != 0) + j++; + } + } + if (j == 0) /*no dwb */ + return; + for (i = 0; i < __DML_NUM_DMB__; i++) { + bw_writeback = &context->bw_ctx.bw.dcn.bw_writeback; + wb_arb_params = &context->bw_ctx.bw.dcn.bw_writeback.mcif_wb_arb[i]; + + for (j = 0 ; j < 4; j++) { + /*current dml only has one set of watermark, need to follow up*/ + bw_writeback->mcif_wb_arb[i].cli_watermark[j] = + dml_get_wm_writeback_urgent(dml_core_ctx) * 1000; + bw_writeback->mcif_wb_arb[i].pstate_watermark[j] = + dml_get_wm_writeback_dram_clock_change(dml_core_ctx) * 1000; + } + if (context->res_ctx.pipe_ctx[i].stream->phy_pix_clk != 0) { + /* time_per_pixel should be in u6.6 format */ + bw_writeback->mcif_wb_arb[i].time_per_pixel = + (1000000 << 6) / context->res_ctx.pipe_ctx[i].stream->phy_pix_clk; + } + bw_writeback->mcif_wb_arb[i].slice_lines = 32; + bw_writeback->mcif_wb_arb[i].arbitration_slice = 2; + bw_writeback->mcif_wb_arb[i].max_scaled_time = + dml2_calc_max_scaled_time(wb_arb_params->time_per_pixel, + wbif_mode, wb_arb_params->cli_watermark[0]); + /*not required any more*/ + bw_writeback->mcif_wb_arb[i].dram_speed_change_duration = + dml_get_wm_writeback_dram_clock_change(dml_core_ctx) * 1000; + + } +} void dml2_initialize_det_scratch(struct dml2_context *in_ctx) { int i; |