From: Ville Syrjälä Date: Mon, 23 Nov 2015 16:06:17 +0000 (+0200) Subject: drm/i915: Introduce bdw_{update,enable,disable}_pipe_irq() X-Git-Tag: MMI-PSA29.97-13-9~7427^2~45^2~1055 X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=013d37520af735fd55f78e33edf55cc6fb3858eb;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git drm/i915: Introduce bdw_{update,enable,disable}_pipe_irq() Pull the BDW+ DE pipe interrupt mask frobbing into a central place, like we have for other platforms. v2: Fix the kerneldoc (Daniel) Signed-off-by: Ville Syrjälä Link: http://patchwork.freedesktop.org/patch/msgid/1448294777-13722-4-git-send-email-ville.syrjala@linux.intel.com Reviewed-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index e0a2f9fcc8d8..256a3bcc5f70 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -2764,6 +2764,20 @@ ilk_disable_display_irq(struct drm_i915_private *dev_priv, uint32_t bits) { ilk_update_display_irq(dev_priv, bits, 0); } +void bdw_update_pipe_irq(struct drm_i915_private *dev_priv, + enum pipe pipe, + uint32_t interrupt_mask, + uint32_t enabled_irq_mask); +static inline void bdw_enable_pipe_irq(struct drm_i915_private *dev_priv, + enum pipe pipe, uint32_t bits) +{ + bdw_update_pipe_irq(dev_priv, pipe, bits, bits); +} +static inline void bdw_disable_pipe_irq(struct drm_i915_private *dev_priv, + enum pipe pipe, uint32_t bits) +{ + bdw_update_pipe_irq(dev_priv, pipe, bits, 0); +} void ibx_display_interrupt_update(struct drm_i915_private *dev_priv, uint32_t interrupt_mask, uint32_t enabled_irq_mask); diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index db69bf54801a..62d885fa321a 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -437,6 +437,38 @@ static void bdw_update_port_irq(struct drm_i915_private *dev_priv, } } +/** + * bdw_update_pipe_irq - update DE pipe interrupt + * @dev_priv: driver private + * @pipe: pipe whose interrupt to update + * @interrupt_mask: mask of interrupt bits to update + * @enabled_irq_mask: mask of interrupt bits to enable + */ +void bdw_update_pipe_irq(struct drm_i915_private *dev_priv, + enum pipe pipe, + uint32_t interrupt_mask, + uint32_t enabled_irq_mask) +{ + uint32_t new_val; + + assert_spin_locked(&dev_priv->irq_lock); + + WARN_ON(enabled_irq_mask & ~interrupt_mask); + + if (WARN_ON(!intel_irqs_enabled(dev_priv))) + return; + + new_val = dev_priv->de_irq_mask[pipe]; + new_val &= ~interrupt_mask; + new_val |= (~enabled_irq_mask & interrupt_mask); + + if (new_val != dev_priv->de_irq_mask[pipe]) { + dev_priv->de_irq_mask[pipe] = new_val; + I915_WRITE(GEN8_DE_PIPE_IMR(pipe), dev_priv->de_irq_mask[pipe]); + POSTING_READ(GEN8_DE_PIPE_IMR(pipe)); + } +} + /** * ibx_display_interrupt_update - update SDEIMR * @dev_priv: driver private @@ -2668,10 +2700,9 @@ static int gen8_enable_vblank(struct drm_device *dev, unsigned int pipe) unsigned long irqflags; spin_lock_irqsave(&dev_priv->irq_lock, irqflags); - dev_priv->de_irq_mask[pipe] &= ~GEN8_PIPE_VBLANK; - I915_WRITE(GEN8_DE_PIPE_IMR(pipe), dev_priv->de_irq_mask[pipe]); - POSTING_READ(GEN8_DE_PIPE_IMR(pipe)); + bdw_enable_pipe_irq(dev_priv, pipe, GEN8_PIPE_VBLANK); spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); + return 0; } @@ -2719,9 +2750,7 @@ static void gen8_disable_vblank(struct drm_device *dev, unsigned int pipe) unsigned long irqflags; spin_lock_irqsave(&dev_priv->irq_lock, irqflags); - dev_priv->de_irq_mask[pipe] |= GEN8_PIPE_VBLANK; - I915_WRITE(GEN8_DE_PIPE_IMR(pipe), dev_priv->de_irq_mask[pipe]); - POSTING_READ(GEN8_DE_PIPE_IMR(pipe)); + bdw_disable_pipe_irq(dev_priv, pipe, GEN8_PIPE_VBLANK); spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); } diff --git a/drivers/gpu/drm/i915/intel_fifo_underrun.c b/drivers/gpu/drm/i915/intel_fifo_underrun.c index 48bd079bdb06..bda526660e20 100644 --- a/drivers/gpu/drm/i915/intel_fifo_underrun.c +++ b/drivers/gpu/drm/i915/intel_fifo_underrun.c @@ -178,14 +178,10 @@ static void broadwell_set_fifo_underrun_reporting(struct drm_device *dev, { struct drm_i915_private *dev_priv = dev->dev_private; - assert_spin_locked(&dev_priv->irq_lock); - if (enable) - dev_priv->de_irq_mask[pipe] &= ~GEN8_PIPE_FIFO_UNDERRUN; + bdw_enable_pipe_irq(dev_priv, pipe, GEN8_PIPE_FIFO_UNDERRUN); else - dev_priv->de_irq_mask[pipe] |= GEN8_PIPE_FIFO_UNDERRUN; - I915_WRITE(GEN8_DE_PIPE_IMR(pipe), dev_priv->de_irq_mask[pipe]); - POSTING_READ(GEN8_DE_PIPE_IMR(pipe)); + bdw_disable_pipe_irq(dev_priv, pipe, GEN8_PIPE_FIFO_UNDERRUN); } static void ibx_set_fifo_underrun_reporting(struct drm_device *dev,