diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c | 38 |
1 files changed, 0 insertions, 38 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c index 7f01463942fb..e5e54097a07d 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c @@ -2031,44 +2031,6 @@ void dcn30_setup_mclk_switch_using_fw_based_vblank_stretch(struct dc *dc, struct context->bw_ctx.bw.dcn.watermarks.a.cstate_pstate.pstate_change_ns = 4U * 1000U * 1000U * 1000U; } -/* - * Finds dummy_latency_index when MCLK switching using firmware based - * vblank stretch is enabled. This function will iterate through the - * table of dummy pstate latencies until the lowest value that allows - * dm_allow_self_refresh_and_mclk_switch to happen is found - */ -int dcn30_find_dummy_latency_index_for_fw_based_mclk_switch(struct dc *dc, struct dc_state *context, - display_e2e_pipe_params_st *pipes, int pipe_cnt, int vlevel) -{ - const int max_latency_table_entries = 4; - int dummy_latency_index = 0; - - while (dummy_latency_index < max_latency_table_entries) { - context->bw_ctx.dml.soc.dram_clock_change_latency_us = - dc->clk_mgr->bw_params->dummy_pstate_table[dummy_latency_index].dummy_pstate_latency_us; - dcn30_internal_validate_bw(dc, context, pipes, &pipe_cnt, &vlevel, false); - - if (context->bw_ctx.dml.soc.allow_dram_self_refresh_or_dram_clock_change_in_vblank == - dm_allow_self_refresh_and_mclk_switch) - break; - - dummy_latency_index++; - } - - if (dummy_latency_index == max_latency_table_entries) { - ASSERT(dummy_latency_index != max_latency_table_entries); - /* If the execution gets here, it means dummy p_states are - * not possible. This should never happen and would mean - * something is severely wrong. - * Here we reset dummy_latency_index to 3, because it is - * better to have underflows than system crashes. - */ - dummy_latency_index = 3; - } - - return dummy_latency_index; -} - void dcn30_update_soc_for_wm_a(struct dc *dc, struct dc_state *context) { DC_FP_START(); |