diff options
| author | Jesse Barnes | 2013-03-08 19:45:53 +0100 |
|---|---|---|
| committer | Daniel Vetter | 2013-03-19 09:38:32 +0100 |
| commit | d62b4892f3d9f7dd2002e5309be10719d6805b0f (patch) | |
| tree | a617424e8666f2a236d3de2fe92fa25bf055e49b /drivers/gpu/drm/i915/i915_gem.c | |
| parent | drm/i915: Remove unneeded dev argument (diff) | |
| download | kernel-qcow2-linux-d62b4892f3d9f7dd2002e5309be10719d6805b0f.tar.gz kernel-qcow2-linux-d62b4892f3d9f7dd2002e5309be10719d6805b0f.tar.xz kernel-qcow2-linux-d62b4892f3d9f7dd2002e5309be10719d6805b0f.zip | |
drm/i915: allow force wake at init time on VLV v2
We need to set the 'allow force wake' bit to enable forcewake handling
later on.
v2: split from clock gating patch (Jani)
check for allowwakeack (Ville)
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 1417fc6c28ee..d554b2171df0 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -4010,7 +4010,16 @@ int i915_gem_init(struct drm_device *dev) int ret; mutex_lock(&dev->struct_mutex); + + if (IS_VALLEYVIEW(dev)) { + /* VLVA0 (potential hack), BIOS isn't actually waking us */ + I915_WRITE(VLV_GTLC_WAKE_CTRL, 1); + if (wait_for((I915_READ(VLV_GTLC_PW_STATUS) & 1) == 1, 10)) + DRM_DEBUG_DRIVER("allow wake ack timed out\n"); + } + i915_gem_init_global_gtt(dev); + ret = i915_gem_init_hw(dev); mutex_unlock(&dev->struct_mutex); if (ret) { |