diff options
| -rw-r--r-- | shared-core/i915_dma.c | 40 |
1 files changed, 21 insertions, 19 deletions
diff --git a/shared-core/i915_dma.c b/shared-core/i915_dma.c index 66d1b13d..68505dca 100644 --- a/shared-core/i915_dma.c +++ b/shared-core/i915_dma.c @@ -110,27 +110,29 @@ static int i915_initialize(struct drm_device * dev, drm_i915_init_t * init) dev_priv->sarea_priv = (drm_i915_sarea_t *) ((u8 *) dev_priv->sarea->handle + init->sarea_priv_offset); - dev_priv->ring.Start = init->ring_start; - dev_priv->ring.End = init->ring_end; - dev_priv->ring.Size = init->ring_size; - dev_priv->ring.tail_mask = dev_priv->ring.Size - 1; - - dev_priv->ring.map.offset = init->ring_start; - dev_priv->ring.map.size = init->ring_size; - dev_priv->ring.map.type = 0; - dev_priv->ring.map.flags = 0; - dev_priv->ring.map.mtrr = 0; - - drm_core_ioremap(&dev_priv->ring.map, dev); - - if (dev_priv->ring.map.handle == NULL) { - i915_dma_cleanup(dev); - DRM_ERROR("can not ioremap virtual address for" - " ring buffer\n"); - return -ENOMEM; + if (!dev_priv->ring.Size) { + dev_priv->ring.Start = init->ring_start; + dev_priv->ring.End = init->ring_end; + dev_priv->ring.Size = init->ring_size; + dev_priv->ring.tail_mask = dev_priv->ring.Size - 1; + + dev_priv->ring.map.offset = init->ring_start; + dev_priv->ring.map.size = init->ring_size; + dev_priv->ring.map.type = 0; + dev_priv->ring.map.flags = 0; + dev_priv->ring.map.mtrr = 0; + + drm_core_ioremap(&dev_priv->ring.map, dev); + + if (dev_priv->ring.map.handle == NULL) { + i915_dma_cleanup(dev); + DRM_ERROR("can not ioremap virtual address for" + " ring buffer\n"); + return -ENOMEM; + } + dev_priv->ring.virtual_start = dev_priv->ring.map.handle; } - dev_priv->ring.virtual_start = dev_priv->ring.map.handle; dev_priv->cpp = init->cpp; dev_priv->sarea_priv->pf_current_page = 0; |