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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 <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1448294777-13722-4-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ville Syrjälä 2015-11-23 18:06:17 +02:00
parent fbdedaeaa7
commit 013d37520a
3 changed files with 51 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/gpu/drm/i915/i915_drv.h
View File

@ -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);

41
drivers/gpu/drm/i915/i915_irq.c
View File

@ -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);
}

8
drivers/gpu/drm/i915/intel_fifo_underrun.c
View File

@ -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,