From ab597bb3760ce2e7a5c48755cacf7df8abfcda6b Mon Sep 17 00:00:00 2001 From: José Roberto de Souza Date: Thu, 10 Feb 2022 10:52:22 -0800 Subject: drm/i915/display: Group PSR2 prog sequences and workarounds MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Grouping inside of the same if all the programing sequences and workarounds of PSR2. The order of programing changed in intel_psr_enable_source() but it will not affect PSR2 as at this point PSR2_ENABLE is still disabled. Cc: Jouni Högander Signed-off-by: José Roberto de Souza Reviewed-by: Jouni Högander Link: https://patchwork.freedesktop.org/patch/msgid/20220210185223.95399-1-jose.souza@intel.com --- drivers/gpu/drm/i915/display/intel_psr.c | 77 +++++++++++++++----------------- 1 file changed, 37 insertions(+), 40 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c index a1a663f362e7..72bd8d3261e0 100644 --- a/drivers/gpu/drm/i915/display/intel_psr.c +++ b/drivers/gpu/drm/i915/display/intel_psr.c @@ -1069,25 +1069,6 @@ static void intel_psr_enable_source(struct intel_dp *intel_dp) enum transcoder cpu_transcoder = intel_dp->psr.transcoder; u32 mask; - if (intel_dp->psr.psr2_enabled && DISPLAY_VER(dev_priv) == 9) { - i915_reg_t reg = CHICKEN_TRANS(cpu_transcoder); - u32 chicken = intel_de_read(dev_priv, reg); - - chicken |= PSR2_VSC_ENABLE_PROG_HEADER | - PSR2_ADD_VERTICAL_LINE_COUNT; - intel_de_write(dev_priv, reg, chicken); - } - - /* - * Wa_16014451276:adlp - * All supported adlp panels have 1-based X granularity, this may - * cause issues if non-supported panels are used. - */ - if (IS_ALDERLAKE_P(dev_priv) && - intel_dp->psr.psr2_enabled) - intel_de_rmw(dev_priv, CHICKEN_TRANS(cpu_transcoder), 0, - ADLP_1_BASED_X_GRANULARITY); - /* * Per Spec: Avoid continuous PSR exit by masking MEMUP and HPD also * mask LPSP to avoid dependency on other drivers that might block @@ -1126,18 +1107,33 @@ static void intel_psr_enable_source(struct intel_dp *intel_dp) intel_dp->psr.psr2_sel_fetch_enabled ? IGNORE_PSR2_HW_TRACKING : 0); - /* Wa_16011168373:adl-p */ - if (IS_ADLP_DISPLAY_STEP(dev_priv, STEP_A0, STEP_B0) && - intel_dp->psr.psr2_enabled) - intel_de_rmw(dev_priv, - TRANS_SET_CONTEXT_LATENCY(intel_dp->psr.transcoder), - TRANS_SET_CONTEXT_LATENCY_MASK, - TRANS_SET_CONTEXT_LATENCY_VALUE(1)); + if (intel_dp->psr.psr2_enabled) { + if (DISPLAY_VER(dev_priv) == 9) + intel_de_rmw(dev_priv, CHICKEN_TRANS(cpu_transcoder), 0, + PSR2_VSC_ENABLE_PROG_HEADER | + PSR2_ADD_VERTICAL_LINE_COUNT); - /* Wa_16012604467:adlp */ - if (IS_ALDERLAKE_P(dev_priv) && intel_dp->psr.psr2_enabled) - intel_de_rmw(dev_priv, CLKGATE_DIS_MISC, 0, - CLKGATE_DIS_MISC_DMASC_GATING_DIS); + /* + * Wa_16014451276:adlp + * All supported adlp panels have 1-based X granularity, this may + * cause issues if non-supported panels are used. + */ + if (IS_ALDERLAKE_P(dev_priv)) + intel_de_rmw(dev_priv, CHICKEN_TRANS(cpu_transcoder), 0, + ADLP_1_BASED_X_GRANULARITY); + + /* Wa_16011168373:adl-p */ + if (IS_ADLP_DISPLAY_STEP(dev_priv, STEP_A0, STEP_B0)) + intel_de_rmw(dev_priv, + TRANS_SET_CONTEXT_LATENCY(intel_dp->psr.transcoder), + TRANS_SET_CONTEXT_LATENCY_MASK, + TRANS_SET_CONTEXT_LATENCY_VALUE(1)); + + /* Wa_16012604467:adlp */ + if (IS_ALDERLAKE_P(dev_priv)) + intel_de_rmw(dev_priv, CLKGATE_DIS_MISC, 0, + CLKGATE_DIS_MISC_DMASC_GATING_DIS); + } } static bool psr_interrupt_error_check(struct intel_dp *intel_dp) @@ -1290,17 +1286,18 @@ static void intel_psr_disable_locked(struct intel_dp *intel_dp) intel_de_rmw(dev_priv, CHICKEN_PAR1_1, DIS_RAM_BYPASS_PSR2_MAN_TRACK, 0); - /* Wa_16011168373:adl-p */ - if (IS_ADLP_DISPLAY_STEP(dev_priv, STEP_A0, STEP_B0) && - intel_dp->psr.psr2_enabled) - intel_de_rmw(dev_priv, - TRANS_SET_CONTEXT_LATENCY(intel_dp->psr.transcoder), - TRANS_SET_CONTEXT_LATENCY_MASK, 0); + if (intel_dp->psr.psr2_enabled) { + /* Wa_16011168373:adl-p */ + if (IS_ADLP_DISPLAY_STEP(dev_priv, STEP_A0, STEP_B0)) + intel_de_rmw(dev_priv, + TRANS_SET_CONTEXT_LATENCY(intel_dp->psr.transcoder), + TRANS_SET_CONTEXT_LATENCY_MASK, 0); - /* Wa_16012604467:adlp */ - if (IS_ALDERLAKE_P(dev_priv) && intel_dp->psr.psr2_enabled) - intel_de_rmw(dev_priv, CLKGATE_DIS_MISC, - CLKGATE_DIS_MISC_DMASC_GATING_DIS, 0); + /* Wa_16012604467:adlp */ + if (IS_ALDERLAKE_P(dev_priv)) + intel_de_rmw(dev_priv, CLKGATE_DIS_MISC, + CLKGATE_DIS_MISC_DMASC_GATING_DIS, 0); + } intel_snps_phy_update_psr_power_state(dev_priv, phy, false); -- cgit v1.2.3