diff options
| -rw-r--r-- | drivers/gpu/drm/i915/i915_irq.c | 124 |
1 files changed, 84 insertions, 40 deletions
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 71293893482a..755d9ceb26a2 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -1262,6 +1262,16 @@ static bool bxt_port_hotplug_long_detect(enum port port, u32 val) } } +static bool spt_port_hotplug2_long_detect(enum port port, u32 val) +{ + switch (port) { + case PORT_E: + return val & PORTE_HOTPLUG_LONG_DETECT; + default: + return false; + } +} + static bool pch_port_hotplug_long_detect(enum port port, u32 val) { switch (port) { @@ -1271,8 +1281,6 @@ static bool pch_port_hotplug_long_detect(enum port port, u32 val) return val & PORTC_HOTPLUG_LONG_DETECT; case PORT_D: return val & PORTD_HOTPLUG_LONG_DETECT; - case PORT_E: - return val & PORTE_HOTPLUG_LONG_DETECT; default: return false; } @@ -1776,12 +1784,7 @@ static void cpt_irq_handler(struct drm_device *dev, u32 pch_iir) { struct drm_i915_private *dev_priv = dev->dev_private; int pipe; - u32 hotplug_trigger; - - if (HAS_PCH_SPT(dev)) - hotplug_trigger = pch_iir & SDE_HOTPLUG_MASK_SPT; - else - hotplug_trigger = pch_iir & SDE_HOTPLUG_MASK_CPT; + u32 hotplug_trigger = pch_iir & SDE_HOTPLUG_MASK_CPT; if (hotplug_trigger) { u32 dig_hotplug_reg, pin_mask = 0, long_mask = 0; @@ -1789,22 +1792,10 @@ static void cpt_irq_handler(struct drm_device *dev, u32 pch_iir) dig_hotplug_reg = I915_READ(PCH_PORT_HOTPLUG); I915_WRITE(PCH_PORT_HOTPLUG, dig_hotplug_reg); - if (HAS_PCH_SPT(dev)) { - intel_get_hpd_pins(&pin_mask, &long_mask, - hotplug_trigger, - dig_hotplug_reg, hpd_spt, - pch_port_hotplug_long_detect); - - /* detect PORTE HP event */ - dig_hotplug_reg = I915_READ(PCH_PORT_HOTPLUG2); - if (pch_port_hotplug_long_detect(PORT_E, - dig_hotplug_reg)) - long_mask |= 1 << HPD_PORT_E; - } else - intel_get_hpd_pins(&pin_mask, &long_mask, - hotplug_trigger, - dig_hotplug_reg, hpd_cpt, - pch_port_hotplug_long_detect); + intel_get_hpd_pins(&pin_mask, &long_mask, + hotplug_trigger, + dig_hotplug_reg, hpd_cpt, + pch_port_hotplug_long_detect); intel_hpd_irq_handler(dev, pin_mask, long_mask); } @@ -1838,6 +1829,43 @@ static void cpt_irq_handler(struct drm_device *dev, u32 pch_iir) cpt_serr_int_handler(dev); } +static void spt_irq_handler(struct drm_device *dev, u32 pch_iir) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + u32 hotplug_trigger = pch_iir & SDE_HOTPLUG_MASK_SPT & + ~SDE_PORTE_HOTPLUG_SPT; + u32 hotplug2_trigger = pch_iir & SDE_PORTE_HOTPLUG_SPT; + u32 pin_mask = 0, long_mask = 0; + + if (hotplug_trigger) { + u32 dig_hotplug_reg; + + dig_hotplug_reg = I915_READ(PCH_PORT_HOTPLUG); + I915_WRITE(PCH_PORT_HOTPLUG, dig_hotplug_reg); + + intel_get_hpd_pins(&pin_mask, &long_mask, hotplug_trigger, + dig_hotplug_reg, hpd_spt, + pch_port_hotplug_long_detect); + } + + if (hotplug2_trigger) { + u32 dig_hotplug_reg; + + dig_hotplug_reg = I915_READ(PCH_PORT_HOTPLUG2); + I915_WRITE(PCH_PORT_HOTPLUG2, dig_hotplug_reg); + + intel_get_hpd_pins(&pin_mask, &long_mask, hotplug2_trigger, + dig_hotplug_reg, hpd_spt, + spt_port_hotplug2_long_detect); + } + + if (pin_mask) + intel_hpd_irq_handler(dev, pin_mask, long_mask); + + if (pch_iir & SDE_GMBUS_CPT) + gmbus_irq_handler(dev); +} + static void ilk_display_irq_handler(struct drm_device *dev, u32 de_iir) { struct drm_i915_private *dev_priv = dev->dev_private; @@ -2156,7 +2184,11 @@ static irqreturn_t gen8_irq_handler(int irq, void *arg) if (pch_iir) { I915_WRITE(SDEIIR, pch_iir); ret = IRQ_HANDLED; - cpt_irq_handler(dev, pch_iir); + + if (HAS_PCH_SPT(dev_priv)) + spt_irq_handler(dev, pch_iir); + else + cpt_irq_handler(dev, pch_iir); } else DRM_ERROR("The master control interrupt lied (SDE)!\n"); @@ -3038,9 +3070,6 @@ static void ibx_hpd_irq_setup(struct drm_device *dev) if (HAS_PCH_IBX(dev)) { hotplug_irqs = SDE_HOTPLUG_MASK; enabled_irqs = intel_hpd_enabled_irqs(dev, hpd_ibx); - } else if (HAS_PCH_SPT(dev)) { - hotplug_irqs = SDE_HOTPLUG_MASK_SPT; - enabled_irqs = intel_hpd_enabled_irqs(dev, hpd_spt); } else { hotplug_irqs = SDE_HOTPLUG_MASK_CPT; enabled_irqs = intel_hpd_enabled_irqs(dev, hpd_cpt); @@ -3050,9 +3079,8 @@ static void ibx_hpd_irq_setup(struct drm_device *dev) /* * Enable digital hotplug on the PCH, and configure the DP short pulse - * duration to 2ms (which is the minimum in the Display Port spec) - * - * This register is the same on all known PCH chips. + * duration to 2ms (which is the minimum in the Display Port spec). + * The pulse duration bits are reserved on LPT+. */ hotplug = I915_READ(PCH_PORT_HOTPLUG); hotplug &= ~(PORTD_PULSE_DURATION_MASK|PORTC_PULSE_DURATION_MASK|PORTB_PULSE_DURATION_MASK); @@ -3060,13 +3088,27 @@ static void ibx_hpd_irq_setup(struct drm_device *dev) hotplug |= PORTC_HOTPLUG_ENABLE | PORTC_PULSE_DURATION_2ms; hotplug |= PORTB_HOTPLUG_ENABLE | PORTB_PULSE_DURATION_2ms; I915_WRITE(PCH_PORT_HOTPLUG, hotplug); +} - /* enable SPT PORTE hot plug */ - if (HAS_PCH_SPT(dev)) { - hotplug = I915_READ(PCH_PORT_HOTPLUG2); - hotplug |= PORTE_HOTPLUG_ENABLE; - I915_WRITE(PCH_PORT_HOTPLUG2, hotplug); - } +static void spt_hpd_irq_setup(struct drm_device *dev) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + u32 hotplug_irqs, hotplug, enabled_irqs; + + hotplug_irqs = SDE_HOTPLUG_MASK_SPT; + enabled_irqs = intel_hpd_enabled_irqs(dev, hpd_spt); + + ibx_display_interrupt_update(dev_priv, hotplug_irqs, enabled_irqs); + + /* Enable digital hotplug on the PCH */ + hotplug = I915_READ(PCH_PORT_HOTPLUG); + hotplug |= PORTD_HOTPLUG_ENABLE | PORTC_HOTPLUG_ENABLE | + PORTB_HOTPLUG_ENABLE; + I915_WRITE(PCH_PORT_HOTPLUG, hotplug); + + hotplug = I915_READ(PCH_PORT_HOTPLUG2); + hotplug |= PORTE_HOTPLUG_ENABLE; + I915_WRITE(PCH_PORT_HOTPLUG2, hotplug); } static void bxt_hpd_irq_setup(struct drm_device *dev) @@ -4171,10 +4213,12 @@ void intel_irq_init(struct drm_i915_private *dev_priv) dev->driver->irq_uninstall = gen8_irq_uninstall; dev->driver->enable_vblank = gen8_enable_vblank; dev->driver->disable_vblank = gen8_disable_vblank; - if (HAS_PCH_SPLIT(dev)) - dev_priv->display.hpd_irq_setup = ibx_hpd_irq_setup; - else + if (IS_BROXTON(dev)) dev_priv->display.hpd_irq_setup = bxt_hpd_irq_setup; + else if (HAS_PCH_SPT(dev)) + dev_priv->display.hpd_irq_setup = spt_hpd_irq_setup; + else + dev_priv->display.hpd_irq_setup = ibx_hpd_irq_setup; } else if (HAS_PCH_SPLIT(dev)) { dev->driver->irq_handler = ironlake_irq_handler; dev->driver->irq_preinstall = ironlake_irq_reset; |