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| author | Paulo Zanoni <paulo.r.zanoni@intel.com> | 2013-08-06 18:57:15 -0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-08-23 14:52:28 +0200 |
| commit | 605cd25b1ffa09a2f86b5c4bd120086dd5ea10a7 (patch) | |
| tree | 1594fd024de2076832c5529b4980c8e560fb0c21 /drivers/gpu/drm/i915 | |
| parent | f52ecbcf8009ef18cda86b30efd837338cd25392 (diff) | |
| download | linux-605cd25b1ffa09a2f86b5c4bd120086dd5ea10a7.tar.gz linux-605cd25b1ffa09a2f86b5c4bd120086dd5ea10a7.tar.bz2 linux-605cd25b1ffa09a2f86b5c4bd120086dd5ea10a7.zip | |
drm/i915: add dev_priv->pm_irq_mask
Just like irq_mask and gt_irq_mask, use it to track the status of
GEN6_PMIMR so we don't need to read it again every time we call
snb_update_pm_irq.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_irq.c | 12 |
2 files changed, 8 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 9bf28010c231..f423a94c1b25 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1123,6 +1123,7 @@ typedef struct drm_i915_private { /** Cached value of IMR to avoid reads in updating the bitfield */ u32 irq_mask; u32 gt_irq_mask; + u32 pm_irq_mask; struct work_struct hotplug_work; bool enable_hotplug_processing; diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index efe3fc671e1e..8872e1955c45 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -142,16 +142,17 @@ static void snb_update_pm_irq(struct drm_i915_private *dev_priv, uint32_t interrupt_mask, uint32_t enabled_irq_mask) { - uint32_t pmimr, new_val; + uint32_t new_val; assert_spin_locked(&dev_priv->irq_lock); - pmimr = new_val = I915_READ(GEN6_PMIMR); + new_val = dev_priv->pm_irq_mask; new_val &= ~interrupt_mask; new_val |= (~enabled_irq_mask & interrupt_mask); - if (new_val != pmimr) { - I915_WRITE(GEN6_PMIMR, new_val); + if (new_val != dev_priv->pm_irq_mask) { + dev_priv->pm_irq_mask = new_val; + I915_WRITE(GEN6_PMIMR, dev_priv->pm_irq_mask); POSTING_READ(GEN6_PMIMR); } } @@ -2217,8 +2218,9 @@ static void gen5_gt_irq_postinstall(struct drm_device *dev) if (HAS_VEBOX(dev)) pm_irqs |= PM_VEBOX_USER_INTERRUPT; + dev_priv->pm_irq_mask = 0xffffffff; I915_WRITE(GEN6_PMIIR, I915_READ(GEN6_PMIIR)); - I915_WRITE(GEN6_PMIMR, 0xffffffff); + I915_WRITE(GEN6_PMIMR, dev_priv->pm_irq_mask); I915_WRITE(GEN6_PMIER, pm_irqs); POSTING_READ(GEN6_PMIER); } |