diff options
| author | Jens Axboe <jaxboe@fusionio.com> | 2011-07-01 16:17:13 +0200 |
|---|---|---|
| committer | Jens Axboe <jaxboe@fusionio.com> | 2011-07-01 16:17:13 +0200 |
| commit | 04bf7869ca0fd12009aee301cac2264a36df4d98 (patch) | |
| tree | 66cb81ebf8b76560a31433c2c493dc430c914af9 /drivers/gpu/drm/i915/i915_irq.c | |
| parent | d2f31a5fd60d168b00fc4f7617b68a1287b21e90 (diff) | |
| parent | 7b28afe01ab6ffb5f152f47831b44933facd2328 (diff) | |
Merge branch 'for-linus' into for-3.1/core
Conflicts:
block/blk-throttle.c
block/cfq-iosched.c
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_irq.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_irq.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index b79619a7b788..ae2b49969b99 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -517,7 +517,7 @@ irqreturn_t ivybridge_irq_handler(DRM_IRQ_ARGS) if (de_iir & DE_PIPEA_VBLANK_IVB) drm_handle_vblank(dev, 0); - if (de_iir & DE_PIPEB_VBLANK_IVB); + if (de_iir & DE_PIPEB_VBLANK_IVB) drm_handle_vblank(dev, 1); /* check event from PCH */ @@ -1740,6 +1740,17 @@ void ironlake_irq_preinstall(struct drm_device *dev) INIT_WORK(&dev_priv->rps_work, gen6_pm_rps_work); I915_WRITE(HWSTAM, 0xeffe); + if (IS_GEN6(dev)) { + /* Workaround stalls observed on Sandy Bridge GPUs by + * making the blitter command streamer generate a + * write to the Hardware Status Page for + * MI_USER_INTERRUPT. This appears to serialize the + * previous seqno write out before the interrupt + * happens. + */ + I915_WRITE(GEN6_BLITTER_HWSTAM, ~GEN6_BLITTER_USER_INTERRUPT); + I915_WRITE(GEN6_BSD_HWSTAM, ~GEN6_BSD_USER_INTERRUPT); + } /* XXX hotplug from PCH */ |