diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c index bf8864bc8a99..6cef62d7a2e5 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c @@ -461,6 +461,11 @@ void dcn30_init_hw(struct dc *dc) REG_SET_2(ODM_MEM_PWR_CTRL3, 0, ODM_MEM_UNASSIGNED_PWR_MODE, 3, ODM_MEM_VBLANK_PWR_MODE, 1); } + if (dc->debug.enable_mem_low_power.bits.vga) { + // Power down VGA memory + REG_UPDATE(MMHUBBUB_MEM_PWR_CNTL, VGA_MEM_PWR_FORCE, 1); + } + if (dc->ctx->dc_bios->fw_info_valid) { res_pool->ref_clocks.xtalin_clock_inKhz = dc->ctx->dc_bios->fw_info.pll_info.crystal_frequency; @@ -949,13 +954,36 @@ void dcn30_set_disp_pattern_generator(const struct dc *dc, } void dcn30_prepare_bandwidth(struct dc *dc, - struct dc_state *context) + struct dc_state *context) { + bool p_state_change_support = context->bw_ctx.bw.dcn.clk.p_state_change_support; + /* Any transition into an FPO config should disable MCLK switching first to avoid + * driver and FW P-State synchronization issues. + */ + if (context->bw_ctx.bw.dcn.clk.fw_based_mclk_switching || dc->clk_mgr->clks.fw_based_mclk_switching) { + dc->optimized_required = true; + context->bw_ctx.bw.dcn.clk.p_state_change_support = false; + } + if (dc->clk_mgr->dc_mode_softmax_enabled) if (dc->clk_mgr->clks.dramclk_khz <= dc->clk_mgr->bw_params->dc_mode_softmax_memclk * 1000 && context->bw_ctx.bw.dcn.clk.dramclk_khz > dc->clk_mgr->bw_params->dc_mode_softmax_memclk * 1000) dc->clk_mgr->funcs->set_max_memclk(dc->clk_mgr, dc->clk_mgr->bw_params->clk_table.entries[dc->clk_mgr->bw_params->clk_table.num_entries - 1].memclk_mhz); dcn20_prepare_bandwidth(dc, context); + /* + * enabled -> enabled: do not disable + * enabled -> disabled: disable + * disabled -> enabled: don't care + * disabled -> disabled: don't care + */ + if (!context->bw_ctx.bw.dcn.clk.fw_based_mclk_switching) + dc_dmub_srv_p_state_delegate(dc, false, context); + + if (context->bw_ctx.bw.dcn.clk.fw_based_mclk_switching || dc->clk_mgr->clks.fw_based_mclk_switching) { + /* After disabling P-State, restore the original value to ensure we get the correct P-State + * on the next optimize. */ + context->bw_ctx.bw.dcn.clk.p_state_change_support = p_state_change_support; + } } |