diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_psr.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_psr.c | 245 |
1 files changed, 178 insertions, 67 deletions
diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c index 108ba1e5d658..c3780d0d2baf 100644 --- a/drivers/gpu/drm/i915/intel_psr.c +++ b/drivers/gpu/drm/i915/intel_psr.c @@ -122,13 +122,26 @@ static void vlv_psr_setup_vsc(struct intel_dp *intel_dp) static void skl_psr_setup_su_vsc(struct intel_dp *intel_dp) { struct edp_vsc_psr psr_vsc; + struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp); + struct drm_device *dev = intel_dig_port->base.base.dev; + struct drm_i915_private *dev_priv = to_i915(dev); /* Prepare VSC Header for SU as per EDP 1.4 spec, Table 6.11 */ memset(&psr_vsc, 0, sizeof(psr_vsc)); psr_vsc.sdp_header.HB0 = 0; psr_vsc.sdp_header.HB1 = 0x7; - psr_vsc.sdp_header.HB2 = 0x3; - psr_vsc.sdp_header.HB3 = 0xb; + if (dev_priv->psr.colorimetry_support && + dev_priv->psr.y_cord_support) { + psr_vsc.sdp_header.HB2 = 0x5; + psr_vsc.sdp_header.HB3 = 0x13; + } else if (dev_priv->psr.y_cord_support) { + psr_vsc.sdp_header.HB2 = 0x4; + psr_vsc.sdp_header.HB3 = 0xe; + } else { + psr_vsc.sdp_header.HB2 = 0x3; + psr_vsc.sdp_header.HB3 = 0xc; + } + intel_psr_write_vsc(intel_dp, &psr_vsc); } @@ -196,7 +209,11 @@ static void hsw_psr_enable_sink(struct intel_dp *intel_dp) drm_dp_dpcd_writeb(&intel_dp->aux, DP_SINK_DEVICE_AUX_FRAME_SYNC_CONF, DP_AUX_FRAME_SYNC_ENABLE); - + /* Enable ALPM at sink for psr2 */ + if (dev_priv->psr.psr2_support && dev_priv->psr.alpm) + drm_dp_dpcd_writeb(&intel_dp->aux, + DP_RECEIVER_ALPM_CONFIG, + DP_ALPM_ENABLE); if (dev_priv->psr.link_standby) drm_dp_dpcd_writeb(&intel_dp->aux, DP_PSR_EN_CFG, DP_PSR_ENABLE | DP_PSR_MAIN_LINK_ACTIVE); @@ -248,7 +265,7 @@ static void vlv_psr_activate(struct intel_dp *intel_dp) VLV_EDP_PSR_ACTIVE_ENTRY); } -static void hsw_psr_enable_source(struct intel_dp *intel_dp) +static void intel_enable_source_psr1(struct intel_dp *intel_dp) { struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp); struct drm_device *dev = dig_port->base.base.dev; @@ -268,7 +285,7 @@ static void hsw_psr_enable_source(struct intel_dp *intel_dp) val |= max_sleep_time << EDP_PSR_MAX_SLEEP_TIME_SHIFT; val |= idle_frames << EDP_PSR_IDLE_FRAME_SHIFT; - if (IS_HASWELL(dev)) + if (IS_HASWELL(dev_priv)) val |= EDP_PSR_MIN_LINK_ENTRY_TIME_8_LINES; if (dev_priv->psr.link_standby) @@ -299,14 +316,31 @@ static void hsw_psr_enable_source(struct intel_dp *intel_dp) val |= EDP_PSR_TP1_TP2_SEL; I915_WRITE(EDP_PSR_CTL, val); +} - if (!dev_priv->psr.psr2_support) - return; +static void intel_enable_source_psr2(struct intel_dp *intel_dp) +{ + struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp); + struct drm_device *dev = dig_port->base.base.dev; + struct drm_i915_private *dev_priv = to_i915(dev); + /* + * Let's respect VBT in case VBT asks a higher idle_frame value. + * Let's use 6 as the minimum to cover all known cases including + * the off-by-one issue that HW has in some cases. Also there are + * cases where sink should be able to train + * with the 5 or 6 idle patterns. + */ + uint32_t idle_frames = max(6, dev_priv->vbt.psr.idle_frames); + uint32_t val; + + val = idle_frames << EDP_PSR_IDLE_FRAME_SHIFT; /* FIXME: selective update is probably totally broken because it doesn't * mesh at all with our frontbuffer tracking. And the hw alone isn't * good enough. */ - val = EDP_PSR2_ENABLE | EDP_SU_TRACK_ENABLE; + val |= EDP_PSR2_ENABLE | + EDP_SU_TRACK_ENABLE | + EDP_FRAMES_BEFORE_SU_ENTRY; if (dev_priv->vbt.psr.tp2_tp3_wakeup_time > 5) val |= EDP_PSR2_TP2_TIME_2500; @@ -320,6 +354,19 @@ static void hsw_psr_enable_source(struct intel_dp *intel_dp) I915_WRITE(EDP_PSR2_CTL, val); } +static void hsw_psr_enable_source(struct intel_dp *intel_dp) +{ + struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp); + struct drm_device *dev = dig_port->base.base.dev; + struct drm_i915_private *dev_priv = to_i915(dev); + + /* psr1 and psr2 are mutually exclusive.*/ + if (dev_priv->psr.psr2_support) + intel_enable_source_psr2(intel_dp); + else + intel_enable_source_psr1(intel_dp); +} + static bool intel_psr_match_conditions(struct intel_dp *intel_dp) { struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp); @@ -344,7 +391,7 @@ static bool intel_psr_match_conditions(struct intel_dp *intel_dp) * ones. Since by Display design transcoder EDP is tied to port A * we can safely escape based on the port A. */ - if (HAS_DDI(dev) && dig_port->port != PORT_A) { + if (HAS_DDI(dev_priv) && dig_port->port != PORT_A) { DRM_DEBUG_KMS("PSR condition failed: Port not supported\n"); return false; } @@ -354,20 +401,20 @@ static bool intel_psr_match_conditions(struct intel_dp *intel_dp) return false; } - if ((IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) && + if ((IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) && !dev_priv->psr.link_standby) { DRM_ERROR("PSR condition failed: Link off requested but not supported on this platform\n"); return false; } - if (IS_HASWELL(dev) && + if (IS_HASWELL(dev_priv) && I915_READ(HSW_STEREO_3D_CTL(intel_crtc->config->cpu_transcoder)) & S3D_ENABLE) { DRM_DEBUG_KMS("PSR condition failed: Stereo 3D is Enabled\n"); return false; } - if (IS_HASWELL(dev) && + if (IS_HASWELL(dev_priv) && adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) { DRM_DEBUG_KMS("PSR condition failed: Interlaced is Enabled\n"); return false; @@ -387,6 +434,22 @@ static bool intel_psr_match_conditions(struct intel_dp *intel_dp) return false; } + /* PSR2 is restricted to work with panel resolutions upto 3200x2000 */ + if (intel_crtc->config->pipe_src_w > 3200 || + intel_crtc->config->pipe_src_h > 2000) { + dev_priv->psr.psr2_support = false; + return false; + } + + /* + * FIXME:enable psr2 only for y-cordinate psr2 panels + * After gtc implementation , remove this restriction. + */ + if (!dev_priv->psr.y_cord_support && dev_priv->psr.psr2_support) { + DRM_DEBUG_KMS("PSR2 disabled, panel does not support Y coordinate\n"); + return false; + } + dev_priv->psr.source_ok = true; return true; } @@ -397,12 +460,15 @@ static void intel_psr_activate(struct intel_dp *intel_dp) struct drm_device *dev = intel_dig_port->base.base.dev; struct drm_i915_private *dev_priv = to_i915(dev); - WARN_ON(I915_READ(EDP_PSR_CTL) & EDP_PSR_ENABLE); + if (dev_priv->psr.psr2_support) + WARN_ON(I915_READ(EDP_PSR2_CTL) & EDP_PSR2_ENABLE); + else + WARN_ON(I915_READ(EDP_PSR_CTL) & EDP_PSR_ENABLE); WARN_ON(dev_priv->psr.active); lockdep_assert_held(&dev_priv->psr.lock); /* Enable/Re-enable PSR on the host */ - if (HAS_DDI(dev)) + if (HAS_DDI(dev_priv)) /* On HSW+ after we enable PSR on source it will activate it * as soon as it match configure idle_frame count. So * we just actually enable it here on activation time. @@ -426,8 +492,10 @@ void intel_psr_enable(struct intel_dp *intel_dp) struct drm_device *dev = intel_dig_port->base.base.dev; struct drm_i915_private *dev_priv = to_i915(dev); struct intel_crtc *crtc = to_intel_crtc(intel_dig_port->base.base.crtc); + enum transcoder cpu_transcoder = crtc->config->cpu_transcoder; + u32 chicken; - if (!HAS_PSR(dev)) { + if (!HAS_PSR(dev_priv)) { DRM_DEBUG_KMS("PSR not supported on this platform\n"); return; } @@ -448,31 +516,39 @@ void intel_psr_enable(struct intel_dp *intel_dp) dev_priv->psr.busy_frontbuffer_bits = 0; - if (HAS_DDI(dev)) { - hsw_psr_setup_vsc(intel_dp); - + if (HAS_DDI(dev_priv)) { if (dev_priv->psr.psr2_support) { - /* PSR2 is restricted to work with panel resolutions upto 3200x2000 */ - if (crtc->config->pipe_src_w > 3200 || - crtc->config->pipe_src_h > 2000) - dev_priv->psr.psr2_support = false; - else - skl_psr_setup_su_vsc(intel_dp); + skl_psr_setup_su_vsc(intel_dp); + chicken = PSR2_VSC_ENABLE_PROG_HEADER; + if (dev_priv->psr.y_cord_support) + chicken |= PSR2_ADD_VERTICAL_LINE_COUNT; + I915_WRITE(CHICKEN_TRANS(cpu_transcoder), chicken); + I915_WRITE(EDP_PSR_DEBUG_CTL, + EDP_PSR_DEBUG_MASK_MEMUP | + EDP_PSR_DEBUG_MASK_HPD | + EDP_PSR_DEBUG_MASK_LPSP | + EDP_PSR_DEBUG_MASK_MAX_SLEEP | + EDP_PSR_DEBUG_MASK_DISP_REG_WRITE); + } else { + /* set up vsc header for psr1 */ + hsw_psr_setup_vsc(intel_dp); + /* + * Per Spec: Avoid continuous PSR exit by masking MEMUP + * and HPD. also mask LPSP to avoid dependency on other + * drivers that might block runtime_pm besides + * preventing other hw tracking issues now we can rely + * on frontbuffer tracking. + */ + I915_WRITE(EDP_PSR_DEBUG_CTL, + EDP_PSR_DEBUG_MASK_MEMUP | + EDP_PSR_DEBUG_MASK_HPD | + EDP_PSR_DEBUG_MASK_LPSP); } - /* - * Per Spec: Avoid continuous PSR exit by masking MEMUP and HPD. - * Also mask LPSP to avoid dependency on other drivers that - * might block runtime_pm besides preventing other hw tracking - * issues now we can rely on frontbuffer tracking. - */ - I915_WRITE(EDP_PSR_DEBUG_CTL, EDP_PSR_DEBUG_MASK_MEMUP | - EDP_PSR_DEBUG_MASK_HPD | EDP_PSR_DEBUG_MASK_LPSP); - /* Enable PSR on the panel */ hsw_psr_enable_sink(intel_dp); - if (INTEL_INFO(dev)->gen >= 9) + if (INTEL_GEN(dev_priv) >= 9) intel_psr_activate(intel_dp); } else { vlv_psr_setup_vsc(intel_dp); @@ -498,7 +574,7 @@ void intel_psr_enable(struct intel_dp *intel_dp) * - On HSW/BDW we get a recoverable frozen screen until next * exit-activate sequence. */ - if (INTEL_INFO(dev)->gen < 9) + if (INTEL_GEN(dev_priv) < 9) schedule_delayed_work(&dev_priv->psr.work, msecs_to_jiffies(intel_dp->panel_power_cycle_delay * 5)); @@ -544,20 +620,42 @@ static void hsw_psr_disable(struct intel_dp *intel_dp) struct drm_i915_private *dev_priv = to_i915(dev); if (dev_priv->psr.active) { - I915_WRITE(EDP_PSR_CTL, - I915_READ(EDP_PSR_CTL) & ~EDP_PSR_ENABLE); + i915_reg_t psr_ctl; + u32 psr_status_mask; + + if (dev_priv->psr.aux_frame_sync) + drm_dp_dpcd_writeb(&intel_dp->aux, + DP_SINK_DEVICE_AUX_FRAME_SYNC_CONF, + 0); + + if (dev_priv->psr.psr2_support) { + psr_ctl = EDP_PSR2_CTL; + psr_status_mask = EDP_PSR2_STATUS_STATE_MASK; + + I915_WRITE(psr_ctl, + I915_READ(psr_ctl) & + ~(EDP_PSR2_ENABLE | EDP_SU_TRACK_ENABLE)); + + } else { + psr_ctl = EDP_PSR_STATUS_CTL; + psr_status_mask = EDP_PSR_STATUS_STATE_MASK; + + I915_WRITE(psr_ctl, + I915_READ(psr_ctl) & ~EDP_PSR_ENABLE); + } /* Wait till PSR is idle */ if (intel_wait_for_register(dev_priv, - EDP_PSR_STATUS_CTL, - EDP_PSR_STATUS_STATE_MASK, - 0, + psr_ctl, psr_status_mask, 0, 2000)) DRM_ERROR("Timed out waiting for PSR Idle State\n"); dev_priv->psr.active = false; } else { - WARN_ON(I915_READ(EDP_PSR_CTL) & EDP_PSR_ENABLE); + if (dev_priv->psr.psr2_support) + WARN_ON(I915_READ(EDP_PSR2_CTL) & EDP_PSR2_ENABLE); + else + WARN_ON(I915_READ(EDP_PSR_CTL) & EDP_PSR_ENABLE); } } @@ -580,7 +678,7 @@ void intel_psr_disable(struct intel_dp *intel_dp) } /* Disable PSR on Source */ - if (HAS_DDI(dev)) + if (HAS_DDI(dev_priv)) hsw_psr_disable(intel_dp); else vlv_psr_disable(intel_dp); @@ -608,13 +706,24 @@ static void intel_psr_work(struct work_struct *work) * and be ready for re-enable. */ if (HAS_DDI(dev_priv)) { - if (intel_wait_for_register(dev_priv, - EDP_PSR_STATUS_CTL, - EDP_PSR_STATUS_STATE_MASK, - 0, - 50)) { - DRM_ERROR("Timed out waiting for PSR Idle for re-enable\n"); - return; + if (dev_priv->psr.psr2_support) { + if (intel_wait_for_register(dev_priv, + EDP_PSR2_STATUS_CTL, + EDP_PSR2_STATUS_STATE_MASK, + 0, + 50)) { + DRM_ERROR("Timed out waiting for PSR2 Idle for re-enable\n"); + return; + } + } else { + if (intel_wait_for_register(dev_priv, + EDP_PSR_STATUS_CTL, + EDP_PSR_STATUS_STATE_MASK, + 0, + 50)) { + DRM_ERROR("Timed out waiting for PSR Idle for re-enable\n"); + return; + } } } else { if (intel_wait_for_register(dev_priv, @@ -656,11 +765,19 @@ static void intel_psr_exit(struct drm_i915_private *dev_priv) return; if (HAS_DDI(dev_priv)) { - val = I915_READ(EDP_PSR_CTL); - - WARN_ON(!(val & EDP_PSR_ENABLE)); - - I915_WRITE(EDP_PSR_CTL, val & ~EDP_PSR_ENABLE); + if (dev_priv->psr.aux_frame_sync) + drm_dp_dpcd_writeb(&intel_dp->aux, + DP_SINK_DEVICE_AUX_FRAME_SYNC_CONF, + 0); + if (dev_priv->psr.psr2_support) { + val = I915_READ(EDP_PSR2_CTL); + WARN_ON(!(val & EDP_PSR2_ENABLE)); + I915_WRITE(EDP_PSR2_CTL, val & ~EDP_PSR2_ENABLE); + } else { + val = I915_READ(EDP_PSR_CTL); + WARN_ON(!(val & EDP_PSR_ENABLE)); + I915_WRITE(EDP_PSR_CTL, val & ~EDP_PSR_ENABLE); + } } else { val = I915_READ(VLV_PSRCTL(pipe)); @@ -813,31 +930,25 @@ void intel_psr_flush(struct drm_i915_private *dev_priv, /** * intel_psr_init - Init basic PSR work and mutex. - * @dev: DRM device + * @dev_priv: i915 device private * * This function is called only once at driver load to initialize basic * PSR stuff. */ -void intel_psr_init(struct drm_device *dev) +void intel_psr_init(struct drm_i915_private *dev_priv) { - struct drm_i915_private *dev_priv = to_i915(dev); - dev_priv->psr_mmio_base = IS_HASWELL(dev_priv) ? HSW_EDP_PSR_BASE : BDW_EDP_PSR_BASE; - /* Per platform default */ - if (i915.enable_psr == -1) { - if (IS_HASWELL(dev) || IS_BROADWELL(dev)) - i915.enable_psr = 1; - else - i915.enable_psr = 0; - } + /* Per platform default: all disabled. */ + if (i915.enable_psr == -1) + i915.enable_psr = 0; /* Set link_standby x link_off defaults */ - if (IS_HASWELL(dev) || IS_BROADWELL(dev)) + if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) /* HSW and BDW require workarounds that we don't implement. */ dev_priv->psr.link_standby = false; - else if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) + else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) /* On VLV and CHV only standby mode is supported. */ dev_priv->psr.link_standby = true; else |