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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2015-02-20 11:54:53 -0800 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2015-02-20 11:54:53 -0800 |
| commit | 4c971aa78314253cce914ed29e3d90df3326d646 (patch) | |
| tree | a9dcf0b1fdc9e1aacff90afb5b3ab79983115dcc /drivers/gpu/drm/i915/i915_irq.c | |
| parent | 4ba24fef3eb3b142197135223b90ced2f319cd53 (diff) | |
| parent | 290b799c390d77d27effee3ce312203aaa32ee74 (diff) | |
Merge branch 'next' into for-linus
Second round of updates for 3.20.
Diffstat (limited to 'drivers/gpu/drm/i915/i915_irq.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_irq.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index d0d3dfbe6d2..b051a238baf 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -292,6 +292,23 @@ void gen6_enable_rps_interrupts(struct drm_device *dev) spin_unlock_irq(&dev_priv->irq_lock); } +u32 gen6_sanitize_rps_pm_mask(struct drm_i915_private *dev_priv, u32 mask) +{ + /* + * SNB,IVB can while VLV,CHV may hard hang on looping batchbuffer + * if GEN6_PM_UP_EI_EXPIRED is masked. + * + * TODO: verify if this can be reproduced on VLV,CHV. + */ + if (INTEL_INFO(dev_priv)->gen <= 7 && !IS_HASWELL(dev_priv)) + mask &= ~GEN6_PM_RP_UP_EI_EXPIRED; + + if (INTEL_INFO(dev_priv)->gen >= 8) + mask &= ~GEN8_PMINTR_REDIRECT_TO_NON_DISP; + + return mask; +} + void gen6_disable_rps_interrupts(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; @@ -304,8 +321,7 @@ void gen6_disable_rps_interrupts(struct drm_device *dev) spin_lock_irq(&dev_priv->irq_lock); - I915_WRITE(GEN6_PMINTRMSK, INTEL_INFO(dev_priv)->gen >= 8 ? - ~GEN8_PMINTR_REDIRECT_TO_NON_DISP : ~0); + I915_WRITE(GEN6_PMINTRMSK, gen6_sanitize_rps_pm_mask(dev_priv, ~0)); __gen6_disable_pm_irq(dev_priv, dev_priv->pm_rps_events); I915_WRITE(gen6_pm_ier(dev_priv), I915_READ(gen6_pm_ier(dev_priv)) & |