diff options
| author | Thomas Daniel <thomas.daniel@intel.com> | 2014-08-19 13:13:36 +0400 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-09-03 13:03:56 +0400 |
| commit | 2d96553613b861d62f28b3eb172f473ca10fea06 (patch) | |
| tree | 5b8ec5ae91f436bb4403d24fedb068a2102bce35 /drivers/gpu/drm/i915/intel_lrc.c | |
| parent | d84a0f3280c48fa28857de59a47e2fbf8753969f (diff) | |
| download | linux-2d96553613b861d62f28b3eb172f473ca10fea06.tar.xz | |
drm/i915/bdw: Populate lrc with aliasing ppgtt if required
A previous commit broke aliasing PPGTT for lrc, resulting in a kernel oops
on boot. Add a check so that is full PPGTT is not in use the context is
populated with the aliasing PPGTT.
Issue: VIZ-4278
Signed-off-by: Thomas Daniel <thomas.daniel@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_lrc.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_lrc.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index c096b9b7f22a..b54f31207cac 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -1452,12 +1452,17 @@ static int populate_lr_context(struct intel_context *ctx, struct drm_i915_gem_object *ctx_obj, struct intel_engine_cs *ring, struct intel_ringbuffer *ringbuf) { + struct drm_device *dev = ring->dev; + struct drm_i915_private *dev_priv = dev->dev_private; struct drm_i915_gem_object *ring_obj = ringbuf->obj; struct i915_hw_ppgtt *ppgtt = ctx->ppgtt; struct page *page; uint32_t *reg_state; int ret; + if (!ppgtt) + ppgtt = dev_priv->mm.aliasing_ppgtt; + ret = i915_gem_object_set_to_cpu_domain(ctx_obj, true); if (ret) { DRM_DEBUG_DRIVER("Could not set to CPU domain\n"); |