diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index ec96f9a9724c..e27cdbe9d524 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -494,6 +494,36 @@ bool i915_semaphore_is_enabled(struct drm_device *dev) return true; } +void intel_hpd_cancel_work(struct drm_i915_private *dev_priv) +{ + spin_lock_irq(&dev_priv->irq_lock); + + dev_priv->long_hpd_port_mask = 0; + dev_priv->short_hpd_port_mask = 0; + dev_priv->hpd_event_bits = 0; + + spin_unlock_irq(&dev_priv->irq_lock); + + cancel_work_sync(&dev_priv->dig_port_work); + cancel_work_sync(&dev_priv->hotplug_work); + cancel_delayed_work_sync(&dev_priv->hotplug_reenable_work); +} + +static void intel_suspend_encoders(struct drm_i915_private *dev_priv) +{ + struct drm_device *dev = dev_priv->dev; + struct drm_encoder *encoder; + + drm_modeset_lock_all(dev); + list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { + struct intel_encoder *intel_encoder = to_intel_encoder(encoder); + + if (intel_encoder->suspend) + intel_encoder->suspend(intel_encoder); + } + drm_modeset_unlock_all(dev); +} + static int i915_drm_freeze(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; @@ -538,6 +568,9 @@ static int i915_drm_freeze(struct drm_device *dev) flush_delayed_work(&dev_priv->rps.delayed_resume_work); intel_runtime_pm_disable_interrupts(dev); + intel_hpd_cancel_work(dev_priv); + + intel_suspend_encoders(dev_priv); intel_suspend_gt_powersave(dev); diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 4412f6a4383b..7a830eac5ba3 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1458,7 +1458,7 @@ struct drm_i915_private { } hpd_mark; } hpd_stats[HPD_NUM_PINS]; u32 hpd_event_bits; - struct timer_list hotplug_reenable_timer; + struct delayed_work hotplug_reenable_work; struct i915_fbc fbc; struct i915_drrs drrs; @@ -2178,6 +2178,7 @@ extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv); extern unsigned long i915_gfx_val(struct drm_i915_private *dev_priv); extern void i915_update_gfx_val(struct drm_i915_private *dev_priv); int vlv_force_gfx_clock(struct drm_i915_private *dev_priv, bool on); +void intel_hpd_cancel_work(struct drm_i915_private *dev_priv); extern void intel_console_resume(struct work_struct *work); diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 390ccc2a3096..0050ee9470f1 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -1189,8 +1189,8 @@ static void i915_hotplug_work_func(struct work_struct *work) * some connectors */ if (hpd_disabled) { drm_kms_helper_poll_enable(dev); - mod_timer(&dev_priv->hotplug_reenable_timer, - jiffies + msecs_to_jiffies(I915_REENABLE_HOTPLUG_DELAY)); + mod_delayed_work(system_wq, &dev_priv->hotplug_reenable_work, + msecs_to_jiffies(I915_REENABLE_HOTPLUG_DELAY)); } spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); @@ -1213,11 +1213,6 @@ static void i915_hotplug_work_func(struct work_struct *work) drm_kms_helper_hotplug_event(dev); } -static void intel_hpd_irq_uninstall(struct drm_i915_private *dev_priv) -{ - del_timer_sync(&dev_priv->hotplug_reenable_timer); -} - static void ironlake_rps_change_irq_handler(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; @@ -3892,8 +3887,6 @@ static void gen8_irq_uninstall(struct drm_device *dev) if (!dev_priv) return; - intel_hpd_irq_uninstall(dev_priv); - gen8_irq_reset(dev); } @@ -3908,8 +3901,6 @@ static void valleyview_irq_uninstall(struct drm_device *dev) I915_WRITE(VLV_MASTER_IER, 0); - intel_hpd_irq_uninstall(dev_priv); - for_each_pipe(pipe) I915_WRITE(PIPESTAT(pipe), 0xffff); @@ -3988,8 +3979,6 @@ static void ironlake_irq_uninstall(struct drm_device *dev) if (!dev_priv) return; - intel_hpd_irq_uninstall(dev_priv); - ironlake_irq_reset(dev); } @@ -4360,8 +4349,6 @@ static void i915_irq_uninstall(struct drm_device * dev) struct drm_i915_private *dev_priv = dev->dev_private; int pipe; - intel_hpd_irq_uninstall(dev_priv); - if (I915_HAS_HOTPLUG(dev)) { I915_WRITE(PORT_HOTPLUG_EN, 0); I915_WRITE(PORT_HOTPLUG_STAT, I915_READ(PORT_HOTPLUG_STAT)); @@ -4598,8 +4585,6 @@ static void i965_irq_uninstall(struct drm_device * dev) if (!dev_priv) return; - intel_hpd_irq_uninstall(dev_priv); - I915_WRITE(PORT_HOTPLUG_EN, 0); I915_WRITE(PORT_HOTPLUG_STAT, I915_READ(PORT_HOTPLUG_STAT)); @@ -4615,14 +4600,18 @@ static void i965_irq_uninstall(struct drm_device * dev) I915_WRITE(IIR, I915_READ(IIR)); } -static void intel_hpd_irq_reenable(unsigned long data) +static void intel_hpd_irq_reenable(struct work_struct *work) { - struct drm_i915_private *dev_priv = (struct drm_i915_private *)data; + struct drm_i915_private *dev_priv = + container_of(work, typeof(*dev_priv), + hotplug_reenable_work.work); struct drm_device *dev = dev_priv->dev; struct drm_mode_config *mode_config = &dev->mode_config; unsigned long irqflags; int i; + intel_runtime_pm_get(dev_priv); + spin_lock_irqsave(&dev_priv->irq_lock, irqflags); for (i = (HPD_NONE + 1); i < HPD_NUM_PINS; i++) { struct drm_connector *connector; @@ -4648,6 +4637,8 @@ static void intel_hpd_irq_reenable(unsigned long data) if (dev_priv->display.hpd_irq_setup) dev_priv->display.hpd_irq_setup(dev); spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); + + intel_runtime_pm_put(dev_priv); } void intel_irq_init(struct drm_device *dev) @@ -4670,8 +4661,8 @@ void intel_irq_init(struct drm_device *dev) setup_timer(&dev_priv->gpu_error.hangcheck_timer, i915_hangcheck_elapsed, (unsigned long) dev); - setup_timer(&dev_priv->hotplug_reenable_timer, intel_hpd_irq_reenable, - (unsigned long) dev_priv); + INIT_DELAYED_WORK(&dev_priv->hotplug_reenable_work, + intel_hpd_irq_reenable); pm_qos_add_request(&dev_priv->pm_qos, PM_QOS_CPU_DMA_LATENCY, PM_QOS_DEFAULT_VALUE); diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c index 2efaf8e8d9c4..e8abfce40976 100644 --- a/drivers/gpu/drm/i915/intel_crt.c +++ b/drivers/gpu/drm/i915/intel_crt.c @@ -699,16 +699,21 @@ intel_crt_detect(struct drm_connector *connector, bool force) goto out; } + drm_modeset_acquire_init(&ctx, 0); + /* for pre-945g platforms use load detect */ if (intel_get_load_detect_pipe(connector, NULL, &tmp, &ctx)) { if (intel_crt_detect_ddc(connector)) status = connector_status_connected; else status = intel_crt_load_detect(crt); - intel_release_load_detect_pipe(connector, &tmp, &ctx); + intel_release_load_detect_pipe(connector, &tmp); } else status = connector_status_unknown; + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); + out: intel_display_power_put(dev_priv, power_domain); return status; diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 018fb7222f60..d074d704f458 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -8462,8 +8462,6 @@ bool intel_get_load_detect_pipe(struct drm_connector *connector, connector->base.id, connector->name, encoder->base.id, encoder->name); - drm_modeset_acquire_init(ctx, 0); - retry: ret = drm_modeset_lock(&config->connection_mutex, ctx); if (ret) @@ -8502,10 +8500,14 @@ retry: i++; if (!(encoder->possible_crtcs & (1 << i))) continue; - if (!possible_crtc->enabled) { - crtc = possible_crtc; - break; - } + if (possible_crtc->enabled) + continue; + /* This can occur when applying the pipe A quirk on resume. */ + if (to_intel_crtc(possible_crtc)->new_enabled) + continue; + + crtc = possible_crtc; + break; } /* @@ -8574,15 +8576,11 @@ fail_unlock: goto retry; } - drm_modeset_drop_locks(ctx); - drm_modeset_acquire_fini(ctx); - return false; } void intel_release_load_detect_pipe(struct drm_connector *connector, - struct intel_load_detect_pipe *old, - struct drm_modeset_acquire_ctx *ctx) + struct intel_load_detect_pipe *old) { struct intel_encoder *intel_encoder = intel_attached_encoder(connector); @@ -8606,17 +8604,12 @@ void intel_release_load_detect_pipe(struct drm_connector *connector, drm_framebuffer_unreference(old->release_fb); } - goto unlock; return; } /* Switch crtc and encoder back off if necessary */ if (old->dpms_mode != DRM_MODE_DPMS_ON) connector->funcs->dpms(connector, old->dpms_mode); - -unlock: - drm_modeset_drop_locks(ctx); - drm_modeset_acquire_fini(ctx); } static int i9xx_pll_refclk(struct drm_device *dev, @@ -11700,8 +11693,8 @@ intel_cursor_plane_update(struct drm_plane *plane, struct drm_crtc *crtc, }; const struct drm_rect clip = { /* integer pixels */ - .x2 = intel_crtc->config.pipe_src_w, - .y2 = intel_crtc->config.pipe_src_h, + .x2 = intel_crtc->active ? intel_crtc->config.pipe_src_w : 0, + .y2 = intel_crtc->active ? intel_crtc->config.pipe_src_h : 0, }; bool visible; int ret; @@ -12659,7 +12652,7 @@ static void intel_enable_pipe_a(struct drm_device *dev) struct intel_connector *connector; struct drm_connector *crt = NULL; struct intel_load_detect_pipe load_detect_temp; - struct drm_modeset_acquire_ctx ctx; + struct drm_modeset_acquire_ctx *ctx = dev->mode_config.acquire_ctx; /* We can't just switch on the pipe A, we need to set things up with a * proper mode and output configuration. As a gross hack, enable pipe A @@ -12676,10 +12669,8 @@ static void intel_enable_pipe_a(struct drm_device *dev) if (!crt) return; - if (intel_get_load_detect_pipe(crt, NULL, &load_detect_temp, &ctx)) - intel_release_load_detect_pipe(crt, &load_detect_temp, &ctx); - - + if (intel_get_load_detect_pipe(crt, NULL, &load_detect_temp, ctx)) + intel_release_load_detect_pipe(crt, &load_detect_temp); } static bool @@ -13112,7 +13103,7 @@ void intel_modeset_cleanup(struct drm_device *dev) * experience fancy races otherwise. */ drm_irq_uninstall(dev); - cancel_work_sync(&dev_priv->hotplug_work); + intel_hpd_cancel_work(dev_priv); dev_priv->pm._irqs_disabled = true; /* diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index ee3942f0b068..67cfed6d911a 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -3553,6 +3553,9 @@ intel_dp_check_link_status(struct intel_dp *intel_dp) if (WARN_ON(!intel_encoder->base.crtc)) return; + if (!to_intel_crtc(intel_encoder->base.crtc)->active) + return; + /* Try to read receiver status if the link appears to be up */ if (!intel_dp_get_link_status(intel_dp, link_status)) { return; @@ -4003,6 +4006,16 @@ void intel_dp_encoder_destroy(struct drm_encoder *encoder) kfree(intel_dig_port); } +static void intel_dp_encoder_suspend(struct intel_encoder *intel_encoder) +{ + struct intel_dp *intel_dp = enc_to_intel_dp(&intel_encoder->base); + + if (!is_edp(intel_dp)) + return; + + edp_panel_vdd_off_sync(intel_dp); +} + static void intel_dp_encoder_reset(struct drm_encoder *encoder) { intel_edp_panel_vdd_sanitize(to_intel_encoder(encoder)); @@ -4037,15 +4050,21 @@ bool intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port, bool long_hpd) { struct intel_dp *intel_dp = &intel_dig_port->dp; + struct intel_encoder *intel_encoder = &intel_dig_port->base; struct drm_device *dev = intel_dig_port->base.base.dev; struct drm_i915_private *dev_priv = dev->dev_private; - int ret; + enum intel_display_power_domain power_domain; + bool ret = true; + if (intel_dig_port->base.type != INTEL_OUTPUT_EDP) intel_dig_port->base.type = INTEL_OUTPUT_DISPLAYPORT; DRM_DEBUG_KMS("got hpd irq on port %d - %s\n", intel_dig_port->port, long_hpd ? "long" : "short"); + power_domain = intel_display_port_power_domain(intel_encoder); + intel_display_power_get(dev_priv, power_domain); + if (long_hpd) { if (!ibx_digital_port_connected(dev_priv, intel_dig_port)) goto mst_fail; @@ -4061,8 +4080,7 @@ intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port, bool long_hpd) } else { if (intel_dp->is_mst) { - ret = intel_dp_check_mst_status(intel_dp); - if (ret == -EINVAL) + if (intel_dp_check_mst_status(intel_dp) == -EINVAL) goto mst_fail; } @@ -4076,7 +4094,8 @@ intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port, bool long_hpd) drm_modeset_unlock(&dev->mode_config.connection_mutex); } } - return false; + ret = false; + goto put_power; mst_fail: /* if we were in MST mode, and device is not there get out of MST mode */ if (intel_dp->is_mst) { @@ -4084,7 +4103,10 @@ mst_fail: intel_dp->is_mst = false; drm_dp_mst_topology_mgr_set_mst(&intel_dp->mst_mgr, intel_dp->is_mst); } - return true; +put_power: + intel_display_power_put(dev_priv, power_domain); + + return ret; } /* Return which DP Port should be selected for Transcoder DP control */ @@ -4722,6 +4744,7 @@ intel_dp_init(struct drm_device *dev, int output_reg, enum port port) intel_encoder->disable = intel_disable_dp; intel_encoder->get_hw_state = intel_dp_get_hw_state; intel_encoder->get_config = intel_dp_get_config; + intel_encoder->suspend = intel_dp_encoder_suspend; if (IS_CHERRYVIEW(dev)) { intel_encoder->pre_pll_enable = chv_dp_pre_pll_enable; intel_encoder->pre_enable = chv_pre_enable_dp; diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 4b2664bd5b81..b8c8bbd8e5f9 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -153,6 +153,12 @@ struct intel_encoder { * be set correctly before calling this function. */ void (*get_config)(struct intel_encoder *, struct intel_crtc_config *pipe_config); + /* + * Called during system suspend after all pending requests for the + * encoder are flushed (for example for DP AUX transactions) and + * device interrupts are disabled. + */ + void (*suspend)(struct intel_encoder *); int crtc_mask; enum hpd_pin hpd_pin; }; @@ -830,8 +836,7 @@ bool intel_get_load_detect_pipe(struct drm_connector *connector, struct intel_load_detect_pipe *old, struct drm_modeset_acquire_ctx *ctx); void intel_release_load_detect_pipe(struct drm_connector *connector, - struct intel_load_detect_pipe *old, - struct drm_modeset_acquire_ctx *ctx); + struct intel_load_detect_pipe *old); int intel_pin_and_fence_fb_obj(struct drm_device *dev, struct drm_i915_gem_object *obj, struct intel_engine_cs *pipelined); diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c index e211eef4b7e4..32186a656816 100644 --- a/drivers/gpu/drm/i915/intel_tv.c +++ b/drivers/gpu/drm/i915/intel_tv.c @@ -1323,11 +1323,16 @@ intel_tv_detect(struct drm_connector *connector, bool force) struct intel_load_detect_pipe tmp; struct drm_modeset_acquire_ctx ctx; + drm_modeset_acquire_init(&ctx, 0); + if (intel_get_load_detect_pipe(connector, &mode, &tmp, &ctx)) { type = intel_tv_detect_type(intel_tv, connector); - intel_release_load_detect_pipe(connector, &tmp, &ctx); + intel_release_load_detect_pipe(connector, &tmp); } else return connector_status_unknown; + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); } else return connector->status;