From: Paulo Zanoni Date: Tue, 6 Aug 2013 21:57:13 +0000 (-0300) Subject: drm/i915: wrap GEN6_PMIMR changes X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=edbfdb456053d0738e6b06a3827ead4158bfc918;p=linux-beck.git drm/i915: wrap GEN6_PMIMR changes Just like we're doing with the other IMR changes. One of the functional changes is that not every caller was doing the POSTING_READ. Signed-off-by: Paulo Zanoni Reviewed-by: Rodrigo Vivi Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 6bd4508666d2..af5c335a69db 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -132,6 +132,41 @@ void ilk_disable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask) ilk_update_gt_irq(dev_priv, mask, 0); } +/** + * snb_update_pm_irq - update GEN6_PMIMR + * @dev_priv: driver private + * @interrupt_mask: mask of interrupt bits to update + * @enabled_irq_mask: mask of interrupt bits to enable + */ +static void snb_update_pm_irq(struct drm_i915_private *dev_priv, + uint32_t interrupt_mask, + uint32_t enabled_irq_mask) +{ + uint32_t pmimr = I915_READ(GEN6_PMIMR); + pmimr &= ~interrupt_mask; + pmimr |= (~enabled_irq_mask & interrupt_mask); + + assert_spin_locked(&dev_priv->irq_lock); + + I915_WRITE(GEN6_PMIMR, pmimr); + POSTING_READ(GEN6_PMIMR); +} + +void snb_enable_pm_irq(struct drm_i915_private *dev_priv, uint32_t mask) +{ + snb_update_pm_irq(dev_priv, mask, mask); +} + +void snb_disable_pm_irq(struct drm_i915_private *dev_priv, uint32_t mask) +{ + snb_update_pm_irq(dev_priv, mask, 0); +} + +static void snb_set_pm_irq(struct drm_i915_private *dev_priv, uint32_t val) +{ + snb_update_pm_irq(dev_priv, 0xffffffff, ~val); +} + static bool ivb_can_enable_err_int(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; @@ -739,15 +774,14 @@ static void gen6_pm_rps_work(struct work_struct *work) { drm_i915_private_t *dev_priv = container_of(work, drm_i915_private_t, rps.work); - u32 pm_iir, pm_imr; + u32 pm_iir; u8 new_delay; spin_lock_irq(&dev_priv->irq_lock); pm_iir = dev_priv->rps.pm_iir; dev_priv->rps.pm_iir = 0; - pm_imr = I915_READ(GEN6_PMIMR); /* Make sure not to corrupt PMIMR state used by ringbuffer code */ - I915_WRITE(GEN6_PMIMR, pm_imr & ~GEN6_PM_RPS_EVENTS); + snb_enable_pm_irq(dev_priv, GEN6_PM_RPS_EVENTS); spin_unlock_irq(&dev_priv->irq_lock); if ((pm_iir & GEN6_PM_RPS_EVENTS) == 0) @@ -921,8 +955,7 @@ static void gen6_rps_irq_handler(struct drm_i915_private *dev_priv, spin_lock(&dev_priv->irq_lock); dev_priv->rps.pm_iir |= pm_iir; - I915_WRITE(GEN6_PMIMR, dev_priv->rps.pm_iir); - POSTING_READ(GEN6_PMIMR); + snb_set_pm_irq(dev_priv, dev_priv->rps.pm_iir); spin_unlock(&dev_priv->irq_lock); queue_work(dev_priv->wq, &dev_priv->rps.work); @@ -1005,8 +1038,8 @@ static void hsw_pm_irq_handler(struct drm_i915_private *dev_priv, if (pm_iir & GEN6_PM_RPS_EVENTS) { spin_lock(&dev_priv->irq_lock); dev_priv->rps.pm_iir |= pm_iir & GEN6_PM_RPS_EVENTS; - I915_WRITE(GEN6_PMIMR, dev_priv->rps.pm_iir); - /* never want to mask useful interrupts. (also posting read) */ + snb_set_pm_irq(dev_priv, dev_priv->rps.pm_iir); + /* never want to mask useful interrupts. */ WARN_ON(I915_READ_NOTRACE(GEN6_PMIMR) & ~GEN6_PM_RPS_EVENTS); spin_unlock(&dev_priv->irq_lock); diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index a8462064714c..8222f2426b47 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -781,5 +781,8 @@ extern void hsw_restore_lcpll(struct drm_i915_private *dev_priv); extern void ilk_enable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask); extern void ilk_disable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask); +extern void snb_enable_pm_irq(struct drm_i915_private *dev_priv, uint32_t mask); +extern void snb_disable_pm_irq(struct drm_i915_private *dev_priv, + uint32_t mask); #endif /* __INTEL_DRV_H__ */ diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 7bc3f1783174..4f0857346bfd 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -3450,7 +3450,7 @@ static void gen6_enable_rps_interrupts(struct drm_device *dev) spin_lock_irq(&dev_priv->irq_lock); WARN_ON(dev_priv->rps.pm_iir); - I915_WRITE(GEN6_PMIMR, I915_READ(GEN6_PMIMR) & ~GEN6_PM_RPS_EVENTS); + snb_enable_pm_irq(dev_priv, GEN6_PM_RPS_EVENTS); I915_WRITE(GEN6_PMIIR, GEN6_PM_RPS_EVENTS); spin_unlock_irq(&dev_priv->irq_lock); /* only unmask PM interrupts we need. Mask all others. */ diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 2e370804248f..7de29d40d1ad 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -1062,10 +1062,8 @@ hsw_vebox_get_irq(struct intel_ring_buffer *ring) spin_lock_irqsave(&dev_priv->irq_lock, flags); if (ring->irq_refcount++ == 0) { - u32 pm_imr = I915_READ(GEN6_PMIMR); I915_WRITE_IMR(ring, ~ring->irq_enable_mask); - I915_WRITE(GEN6_PMIMR, pm_imr & ~ring->irq_enable_mask); - POSTING_READ(GEN6_PMIMR); + snb_enable_pm_irq(dev_priv, ring->irq_enable_mask); } spin_unlock_irqrestore(&dev_priv->irq_lock, flags); @@ -1084,10 +1082,8 @@ hsw_vebox_put_irq(struct intel_ring_buffer *ring) spin_lock_irqsave(&dev_priv->irq_lock, flags); if (--ring->irq_refcount == 0) { - u32 pm_imr = I915_READ(GEN6_PMIMR); I915_WRITE_IMR(ring, ~0); - I915_WRITE(GEN6_PMIMR, pm_imr | ring->irq_enable_mask); - POSTING_READ(GEN6_PMIMR); + snb_disable_pm_irq(dev_priv, ring->irq_enable_mask); } spin_unlock_irqrestore(&dev_priv->irq_lock, flags); }