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| author | Deepak S <deepak.s@linux.intel.com> | 2014-09-09 19:14:16 +0530 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-09-19 14:41:17 +0200 |
| commit | a01b0e946f6db0a145dd92d7a44babd628d2c7a8 (patch) | |
| tree | 47b85d702b22ffb2e8c73c2a743c67c23d1a47b8 /drivers/gpu | |
| parent | cf303626748e0a5c059e453d025539583d870116 (diff) | |
| download | op-kernel-dev-a01b0e946f6db0a145dd92d7a44babd628d2c7a8.zip op-kernel-dev-a01b0e946f6db0a145dd92d7a44babd628d2c7a8.tar.gz | |
drm/i915: add cherryview specfic forcewake in execlists_elsp_write
In chv, we have two power wells Render & Media. We need to use
corresponsing forcewake count. If we dont follow this we are getting
error "*ERROR*: Timed out waiting for forcewake old ack to clear" due to
multiple entry into __vlv_force_wake_get.
Signed-off-by: Deepak S <deepak.s@linux.intel.com>
Requested-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_lrc.c | 29 |
1 files changed, 25 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index bd1b28d..bafd38b 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -300,8 +300,18 @@ static void execlists_elsp_write(struct intel_engine_cs *ring, * Instead, we do the runtime_pm_get/put when creating/destroying requests. */ spin_lock_irqsave(&dev_priv->uncore.lock, flags); - if (dev_priv->uncore.forcewake_count++ == 0) - dev_priv->uncore.funcs.force_wake_get(dev_priv, FORCEWAKE_ALL); + if (IS_CHERRYVIEW(dev_priv->dev)) { + if (dev_priv->uncore.fw_rendercount++ == 0) + dev_priv->uncore.funcs.force_wake_get(dev_priv, + FORCEWAKE_RENDER); + if (dev_priv->uncore.fw_mediacount++ == 0) + dev_priv->uncore.funcs.force_wake_get(dev_priv, + FORCEWAKE_MEDIA); + } else { + if (dev_priv->uncore.forcewake_count++ == 0) + dev_priv->uncore.funcs.force_wake_get(dev_priv, + FORCEWAKE_ALL); + } spin_unlock_irqrestore(&dev_priv->uncore.lock, flags); I915_WRITE(RING_ELSP(ring), desc[1]); @@ -315,8 +325,19 @@ static void execlists_elsp_write(struct intel_engine_cs *ring, /* Release Force Wakeup (see the big comment above). */ spin_lock_irqsave(&dev_priv->uncore.lock, flags); - if (--dev_priv->uncore.forcewake_count == 0) - dev_priv->uncore.funcs.force_wake_put(dev_priv, FORCEWAKE_ALL); + if (IS_CHERRYVIEW(dev_priv->dev)) { + if (--dev_priv->uncore.fw_rendercount == 0) + dev_priv->uncore.funcs.force_wake_put(dev_priv, + FORCEWAKE_RENDER); + if (--dev_priv->uncore.fw_mediacount == 0) + dev_priv->uncore.funcs.force_wake_put(dev_priv, + FORCEWAKE_MEDIA); + } else { + if (--dev_priv->uncore.forcewake_count == 0) + dev_priv->uncore.funcs.force_wake_put(dev_priv, + FORCEWAKE_ALL); + } + spin_unlock_irqrestore(&dev_priv->uncore.lock, flags); } |
