diff options
Diffstat (limited to 'shared-core/i915_init.c')
| -rw-r--r-- | shared-core/i915_init.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/shared-core/i915_init.c b/shared-core/i915_init.c index b9e7e17b..7183f81f 100644 --- a/shared-core/i915_init.c +++ b/shared-core/i915_init.c @@ -252,6 +252,38 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags) memset(dev_priv->hw_status_page, 0, PAGE_SIZE); I915_WRITE(I915REG_HWS_PGA, dev_priv->dma_status_page); + } else { + size = 4 * 1024; + ret = drm_buffer_object_create(dev, size, + drm_bo_type_kernel, + DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE | + DRM_BO_FLAG_MEM_VRAM | + DRM_BO_FLAG_NO_EVICT, + DRM_BO_HINT_DONT_FENCE, 0x1, 0, + &dev_priv->hws_bo); + if (ret < 0) { + DRM_ERROR("Unable to allocate or pin ring buffer\n"); + return -EINVAL; + } + dev_priv->status_gfx_addr = + dev_priv->hws_bo->offset & (0x1ffff << 12); + dev_priv->hws_map.offset = dev->agp->base + + dev_priv->hws_bo->offset; + dev_priv->hws_map.size = size; + dev_priv->hws_map.type = 0; + dev_priv->hws_map.flags = 0; + dev_priv->hws_map.mtrr = 0; + + drm_core_ioremap(&dev_priv->hws_map, dev); + if (dev_priv->hws_map.handle == NULL) { + dev_priv->status_gfx_addr = 0; + DRM_ERROR("can not ioremap virtual addr" + " for G33 hw status page\n"); + return -ENOMEM; + } + dev_priv->hw_status_page = dev_priv->hws_map.handle; + memset(dev_priv->hw_status_page, 0, size); + I915_WRITE(I915REG_HWS_PGA, dev_priv->status_gfx_addr); } DRM_DEBUG("Enabled hardware status page\n"); @@ -324,6 +356,7 @@ int i915_driver_unload(struct drm_device *dev) if (dev_priv->status_gfx_addr) { dev_priv->status_gfx_addr = 0; drm_core_ioremapfree(&dev_priv->hws_map, dev); + drm_bo_usage_deref_unlocked(&dev_priv->hws_bo); I915_WRITE(I915REG_HWS_PGA, 0x1ffff000); } |