diff options
Diffstat (limited to 'shared-core/i915_dma.c')
| -rw-r--r-- | shared-core/i915_dma.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/shared-core/i915_dma.c b/shared-core/i915_dma.c index 608723f4..9619525d 100644 --- a/shared-core/i915_dma.c +++ b/shared-core/i915_dma.c @@ -128,8 +128,14 @@ static int i915_initialize(struct drm_device * dev, drm_i915_init_t * init) dev_priv->max_validate_buffers = I915_MAX_VALIDATE_BUFFERS; #endif - dev_priv->sarea_priv = (drm_i915_sarea_t *) - ((u8 *) dev_priv->sarea->handle + init->sarea_priv_offset); + if (init->sarea_priv_offset) + dev_priv->sarea_priv = (drm_i915_sarea_t *) + ((u8 *) dev_priv->sarea->handle + + init->sarea_priv_offset); + else { + /* No sarea_priv for you! */ + dev_priv->sarea_priv = NULL; + } dev_priv->ring.Start = init->ring_start; dev_priv->ring.End = init->ring_end; @@ -154,7 +160,9 @@ static int i915_initialize(struct drm_device * dev, drm_i915_init_t * init) dev_priv->ring.virtual_start = dev_priv->ring.map.handle; dev_priv->cpp = init->cpp; - dev_priv->sarea_priv->pf_current_page = 0; + + if (dev_priv->sarea_priv) + dev_priv->sarea_priv->pf_current_page = 0; /* We are using separate values as placeholders for mechanisms for * private backbuffer/depthbuffer usage. @@ -426,7 +434,8 @@ void i915_emit_breadcrumb(struct drm_device *dev) DRM_DEBUG("Breadcrumb counter wrapped around\n"); } - dev_priv->sarea_priv->last_enqueue = dev_priv->counter; + if (dev_priv->sarea_priv) + dev_priv->sarea_priv->last_enqueue = dev_priv->counter; BEGIN_LP_RING(4); OUT_RING(CMD_STORE_DWORD_IDX); @@ -1101,7 +1110,8 @@ static int i915_execbuffer(struct drm_device *dev, void *data, if (ret) goto out_err0; - sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv); + if (sarea_priv) + sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv); /* fence */ ret = drm_fence_buffer_objects(dev, NULL, fence_arg->flags, |