diff options
| author | Relja Vojvodic <relja.vojvodic@amd.com> | 2023-12-01 16:25:13 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-12-06 23:22:34 +0300 |
| commit | 43484c4bdb6eb2f74cec61e4e7cfcb6ce8e69e2f (patch) | |
| tree | 6ad6b92c521069fc8f822a957dfed9ceea0a2a6c /drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c | |
| parent | e6ae4c47e8f8941fde115434fd8884e4e972cf6b (diff) | |
| download | linux-43484c4bdb6eb2f74cec61e4e7cfcb6ce8e69e2f.tar.xz | |
drm/amd/display: Added delay to DPM log
HW registers were being read to quickly, causing incorrect values to be
logged after a clock frequency was changed
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Martin Leung <martin.leung@amd.com>
Acked-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Signed-off-by: Relja Vojvodic <relja.vojvodic@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c | 26 |
1 files changed, 16 insertions, 10 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 a496930b1f9c..95c0b49b531a 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 @@ -460,18 +460,24 @@ static int dcn32_get_dispclk_from_dentist(struct clk_mgr *clk_mgr_base) static void dcn32_auto_dpm_test_log(struct dc_clocks *new_clocks, struct clk_mgr_internal *clk_mgr) { - unsigned int dispclk_khz_reg = REG_READ(CLK1_CLK0_CURRENT_CNT); // DISPCLK - unsigned int dppclk_khz_reg = REG_READ(CLK1_CLK1_CURRENT_CNT); // DPPCLK - unsigned int dprefclk_khz_reg = REG_READ(CLK1_CLK2_CURRENT_CNT); // DPREFCLK - unsigned int dcfclk_khz_reg = REG_READ(CLK1_CLK3_CURRENT_CNT); // DCFCLK - unsigned int dtbclk_khz_reg = REG_READ(CLK1_CLK4_CURRENT_CNT); // DTBCLK - unsigned int fclk_khz_reg = REG_READ(CLK4_CLK0_CURRENT_CNT); // FCLK + unsigned int dispclk_khz_reg, dppclk_khz_reg, dprefclk_khz_reg, dcfclk_khz_reg, dtbclk_khz_reg, + fclk_khz_reg; + int dramclk_khz_override, fclk_khz_override, num_fclk_levels; + + msleep(5); + + dispclk_khz_reg = REG_READ(CLK1_CLK0_CURRENT_CNT); // DISPCLK + dppclk_khz_reg = REG_READ(CLK1_CLK1_CURRENT_CNT); // DPPCLK + dprefclk_khz_reg = REG_READ(CLK1_CLK2_CURRENT_CNT); // DPREFCLK + dcfclk_khz_reg = REG_READ(CLK1_CLK3_CURRENT_CNT); // DCFCLK + dtbclk_khz_reg = REG_READ(CLK1_CLK4_CURRENT_CNT); // DTBCLK + fclk_khz_reg = REG_READ(CLK4_CLK0_CURRENT_CNT); // FCLK // Overrides for these clocks in case there is no p_state change support - int dramclk_khz_override = new_clocks->dramclk_khz; - int fclk_khz_override = new_clocks->fclk_khz; + dramclk_khz_override = new_clocks->dramclk_khz; + fclk_khz_override = new_clocks->fclk_khz; - int num_fclk_levels = clk_mgr->base.bw_params->clk_table.num_entries_per_clk.num_fclk_levels - 1; + num_fclk_levels = clk_mgr->base.bw_params->clk_table.num_entries_per_clk.num_fclk_levels - 1; if (!new_clocks->p_state_change_support) { dramclk_khz_override = clk_mgr->base.bw_params->max_memclk_mhz * 1000; @@ -707,7 +713,7 @@ static void dcn32_update_clocks(struct clk_mgr *clk_mgr_base, dmcu->funcs->set_psr_wait_loop(dmcu, clk_mgr_base->clks.dispclk_khz / 1000 / 7); - if (dc->config.enable_auto_dpm_test_logs) { + if (dc->config.enable_auto_dpm_test_logs && safe_to_lower) { dcn32_auto_dpm_test_log(new_clocks, clk_mgr); } } |