diff options
| author | Eugeni Dodonov <eugeni.dodonov@intel.com> | 2012-07-02 18:51:04 +0400 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2012-07-04 00:15:21 +0400 |
| commit | e7911c48a05bc0002616a51e99761dec36110b04 (patch) | |
| tree | c7a371e758fecb36e76c323a41b17b21f24ef417 /drivers/gpu/drm/i915/i915_drv.c | |
| parent | c4de7b0ffda2bb4843fd7f1052d0a2bb90bd08a5 (diff) | |
| download | linux-e7911c48a05bc0002616a51e99761dec36110b04.tar.xz | |
drm/i915: support Haswell force waking
There is a different ACK register for force wake on Haswell, so account
for that.
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_drv.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.c | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index a4ea4a9fc425..3ac414ff7f84 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -451,12 +451,19 @@ static void __gen6_gt_wait_for_thread_c0(struct drm_i915_private *dev_priv) static void __gen6_gt_force_wake_get(struct drm_i915_private *dev_priv) { - if (wait_for_atomic_us((I915_READ_NOTRACE(FORCEWAKE_ACK) & 1) == 0, 500)) + u32 forcewake_ack; + + if (IS_HASWELL(dev_priv->dev)) + forcewake_ack = FORCEWAKE_ACK_HSW; + else + forcewake_ack = FORCEWAKE_ACK; + + if (wait_for_atomic_us((I915_READ_NOTRACE(forcewake_ack) & 1) == 0, 500)) DRM_ERROR("Force wake wait timed out\n"); I915_WRITE_NOTRACE(FORCEWAKE, 1); - if (wait_for_atomic_us((I915_READ_NOTRACE(FORCEWAKE_ACK) & 1), 500)) + if (wait_for_atomic_us((I915_READ_NOTRACE(forcewake_ack) & 1), 500)) DRM_ERROR("Force wake wait timed out\n"); __gen6_gt_wait_for_thread_c0(dev_priv); @@ -464,12 +471,19 @@ static void __gen6_gt_force_wake_get(struct drm_i915_private *dev_priv) static void __gen6_gt_force_wake_mt_get(struct drm_i915_private *dev_priv) { - if (wait_for_atomic_us((I915_READ_NOTRACE(FORCEWAKE_MT_ACK) & 1) == 0, 500)) + u32 forcewake_ack; + + if (IS_HASWELL(dev_priv->dev)) + forcewake_ack = FORCEWAKE_ACK_HSW; + else + forcewake_ack = FORCEWAKE_MT_ACK; + + if (wait_for_atomic_us((I915_READ_NOTRACE(forcewake_ack) & 1) == 0, 500)) DRM_ERROR("Force wake wait timed out\n"); I915_WRITE_NOTRACE(FORCEWAKE_MT, _MASKED_BIT_ENABLE(1)); - if (wait_for_atomic_us((I915_READ_NOTRACE(FORCEWAKE_MT_ACK) & 1), 500)) + if (wait_for_atomic_us((I915_READ_NOTRACE(forcewake_ack) & 1), 500)) DRM_ERROR("Force wake wait timed out\n"); __gen6_gt_wait_for_thread_c0(dev_priv); |