From 1d8355ad922423c9f765a644ed04526a6273d9ee Mon Sep 17 00:00:00 2001 From: Alvin Lee Date: Tue, 2 May 2023 09:54:56 -0400 Subject: [PATCH] drm/amd/display: Only skip update for DCFCLK, UCLK, FCLK on overclock [Description] - Update clocks is skipped in the GPU overclock sequence - However, we still need to update DISPCLK, DPPCLK, and DTBCLK because the GPU overclock sequence could temporarily disable ODM 2:1 combine because we disable all planes in the sequence Reviewed-by: Jun Lei Acked-by: Aurabindo Pillai Signed-off-by: Alvin Lee Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher --- .../display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c | 24 +++++++++++-------- drivers/gpu/drm/amd/display/dc/dc.h | 7 +++++- 2 files changed, 20 insertions(+), 11 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c index 85e963ec25ab..1df623b298a9 100644 --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c @@ -460,9 +460,6 @@ static void dcn32_update_clocks(struct clk_mgr *clk_mgr_base, bool p_state_change_support; bool fclk_p_state_change_support; - if (dc->work_arounds.skip_clock_update) - return; - if (clk_mgr_base->clks.dispclk_khz == 0 || (dc->debug.force_clock_mode & 0x1)) { /* This is from resume or boot up, if forced_clock cfg option used, @@ -489,7 +486,8 @@ static void dcn32_update_clocks(struct clk_mgr *clk_mgr_base, fclk_p_state_change_support = new_clocks->fclk_p_state_change_support; - if (should_update_pstate_support(safe_to_lower, fclk_p_state_change_support, clk_mgr_base->clks.fclk_p_state_change_support)) { + if (should_update_pstate_support(safe_to_lower, fclk_p_state_change_support, clk_mgr_base->clks.fclk_p_state_change_support) && + !dc->work_arounds.clock_update_disable_mask.fclk) { clk_mgr_base->clks.fclk_p_state_change_support = fclk_p_state_change_support; /* To enable FCLK P-state switching, send FCLK_PSTATE_SUPPORTED message to PMFW */ @@ -503,12 +501,14 @@ static void dcn32_update_clocks(struct clk_mgr *clk_mgr_base, new_clocks->dcfclk_khz = (new_clocks->dcfclk_khz > (dc->debug.force_min_dcfclk_mhz * 1000)) ? new_clocks->dcfclk_khz : (dc->debug.force_min_dcfclk_mhz * 1000); - if (should_set_clock(safe_to_lower, new_clocks->dcfclk_khz, clk_mgr_base->clks.dcfclk_khz)) { + if (should_set_clock(safe_to_lower, new_clocks->dcfclk_khz, clk_mgr_base->clks.dcfclk_khz) && + !dc->work_arounds.clock_update_disable_mask.dcfclk) { clk_mgr_base->clks.dcfclk_khz = new_clocks->dcfclk_khz; dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_DCFCLK, khz_to_mhz_ceil(clk_mgr_base->clks.dcfclk_khz)); } - if (should_set_clock(safe_to_lower, new_clocks->dcfclk_deep_sleep_khz, clk_mgr_base->clks.dcfclk_deep_sleep_khz)) { + if (should_set_clock(safe_to_lower, new_clocks->dcfclk_deep_sleep_khz, clk_mgr_base->clks.dcfclk_deep_sleep_khz) && + !dc->work_arounds.clock_update_disable_mask.dcfclk_ds) { clk_mgr_base->clks.dcfclk_deep_sleep_khz = new_clocks->dcfclk_deep_sleep_khz; dcn30_smu_set_min_deep_sleep_dcef_clk(clk_mgr, khz_to_mhz_ceil(clk_mgr_base->clks.dcfclk_deep_sleep_khz)); } @@ -527,7 +527,8 @@ static void dcn32_update_clocks(struct clk_mgr *clk_mgr_base, } p_state_change_support = new_clocks->p_state_change_support; - if (should_update_pstate_support(safe_to_lower, p_state_change_support, clk_mgr_base->clks.p_state_change_support)) { + if (should_update_pstate_support(safe_to_lower, p_state_change_support, clk_mgr_base->clks.p_state_change_support) && + !dc->work_arounds.clock_update_disable_mask.uclk) { clk_mgr_base->clks.p_state_change_support = p_state_change_support; /* to disable P-State switching, set UCLK min = max */ @@ -541,20 +542,23 @@ static void dcn32_update_clocks(struct clk_mgr *clk_mgr_base, update_fclk = true; } - if (clk_mgr_base->ctx->dce_version != DCN_VERSION_3_21 && !clk_mgr_base->clks.fclk_p_state_change_support && update_fclk) { + if (clk_mgr_base->ctx->dce_version != DCN_VERSION_3_21 && !clk_mgr_base->clks.fclk_p_state_change_support && update_fclk && + !dc->work_arounds.clock_update_disable_mask.fclk) { /* Handle code for sending a message to PMFW that FCLK P-state change is not supported */ dcn32_smu_send_fclk_pstate_message(clk_mgr, FCLK_PSTATE_NOTSUPPORTED); } /* Always update saved value, even if new value not set due to P-State switching unsupported */ - if (should_set_clock(safe_to_lower, new_clocks->dramclk_khz, clk_mgr_base->clks.dramclk_khz)) { + if (should_set_clock(safe_to_lower, new_clocks->dramclk_khz, clk_mgr_base->clks.dramclk_khz) && + !dc->work_arounds.clock_update_disable_mask.uclk) { clk_mgr_base->clks.dramclk_khz = new_clocks->dramclk_khz; update_uclk = true; } /* set UCLK to requested value if P-State switching is supported, or to re-enable P-State switching */ if (clk_mgr_base->clks.p_state_change_support && - (update_uclk || !clk_mgr_base->clks.prev_p_state_change_support)) + (update_uclk || !clk_mgr_base->clks.prev_p_state_change_support) && + !dc->work_arounds.clock_update_disable_mask.uclk) dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_UCLK, khz_to_mhz_ceil(clk_mgr_base->clks.dramclk_khz)); if (clk_mgr_base->clks.num_ways != new_clocks->num_ways && diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h index f4448b545d70..e89de1078964 100644 --- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -272,8 +272,13 @@ struct dc_bug_wa { bool dedcn20_305_wa; bool skip_clock_update; bool lt_early_cr_pattern; + struct { + uint8_t uclk : 1; + uint8_t fclk : 1; + uint8_t dcfclk : 1; + uint8_t dcfclk_ds: 1; + } clock_update_disable_mask; }; - struct dc_dcc_surface_param { struct dc_size surface_size; enum surface_pixel_format format; -- 2.20.1