diff options
| -rw-r--r-- | shared-core/i915_init.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/shared-core/i915_init.c b/shared-core/i915_init.c index 4f2d3a4f..b21351c0 100644 --- a/shared-core/i915_init.c +++ b/shared-core/i915_init.c @@ -100,6 +100,32 @@ int i915_probe_agp(struct pci_dev *pdev, unsigned long *aperture_size, return 0; } +static int +i915_init_hws_phys(struct drm_device *dev) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + int ret = 0; + + dev_priv->status_page_dmah = drm_pci_alloc(dev, PAGE_SIZE, PAGE_SIZE, + 0xffffffff); + + if (!dev_priv->status_page_dmah) { + DRM_ERROR("Can not allocate hardware status page\n"); + ret = -ENOMEM; + goto out; + } + dev_priv->hw_status_page = dev_priv->status_page_dmah->vaddr; + dev_priv->dma_status_page = dev_priv->status_page_dmah->busaddr; + + memset(dev_priv->hw_status_page, 0, PAGE_SIZE); + + I915_WRITE(HWS_PGA, dev_priv->dma_status_page); + DRM_DEBUG("hws kernel virt: 0x%p\n", dev_priv->hw_status_page); + +out: + return ret; +} + static int i915_load_modeset_init(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; @@ -113,6 +139,9 @@ static int i915_load_modeset_init(struct drm_device *dev) /* Let GEM Manage from end of prealloc space to end of aperture */ i915_gem_do_init(dev, prealloc_size, agp_size); + if (!I915_NEED_GFX_HWS(dev)) + i915_init_hws_phys(dev); + ret = i915_gem_init_ringbuffer(dev); if (ret) goto out; @@ -354,6 +383,8 @@ int i915_driver_unload(struct drm_device *dev) mutex_unlock(&dev->struct_mutex); drm_mm_takedown(&dev_priv->vram); i915_gem_lastclose(dev); + if (!I915_NEED_GFX_HWS(dev)) + drm_pci_free(dev, dev_priv->status_page_dmah); } drm_rmmap(dev, dev_priv->mmio_map); |