diff options
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 29d9d21e941..6ecfd108eff 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -233,7 +233,7 @@ i915_gem_gtt_pwrite(struct drm_device *dev, struct drm_gem_object *obj, if (unwritten) #endif /* CONFIG_HIGHMEM */ { - vaddr = ioremap(pfn << PAGE_SHIFT, PAGE_SIZE); + vaddr = ioremap_wc(pfn << PAGE_SHIFT, PAGE_SIZE); #if WATCH_PWRITE DRM_INFO("pwrite slow i %d o %d l %d " "pfn %ld vaddr %p\n", @@ -1612,9 +1612,10 @@ i915_gem_object_pin_and_relocate(struct drm_gem_object *obj, if (reloc_page != NULL) iounmap(reloc_page); - reloc_page = ioremap(dev->agp->base + - (reloc_offset & ~(PAGE_SIZE - 1)), - PAGE_SIZE); + reloc_page = ioremap_wc(dev->agp->base + + (reloc_offset & + ~(PAGE_SIZE - 1)), + PAGE_SIZE); last_reloc_offset = reloc_offset; if (reloc_page == NULL) { drm_gem_object_unreference(target_obj); @@ -2318,7 +2319,9 @@ i915_gem_init_hws(struct drm_device *dev) dev_priv->hws_map.flags = 0; dev_priv->hws_map.mtrr = 0; - drm_core_ioremap(&dev_priv->hws_map, dev); + /* Ioremapping here is the wrong thing to do. We want cached access. + */ + drm_core_ioremap_wc(&dev_priv->hws_map, dev); if (dev_priv->hws_map.handle == NULL) { DRM_ERROR("Failed to map status page.\n"); memset(&dev_priv->hws_map, 0, sizeof(dev_priv->hws_map)); @@ -2369,7 +2372,7 @@ i915_gem_init_ringbuffer(struct drm_device *dev) dev_priv->ring.map.flags = 0; dev_priv->ring.map.mtrr = 0; - drm_core_ioremap(&dev_priv->ring.map, dev); + drm_core_ioremap_wc(&dev_priv->ring.map, dev); if (dev_priv->ring.map.handle == NULL) { DRM_ERROR("Failed to map ringbuffer.\n"); memset(&dev_priv->ring, 0, sizeof(dev_priv->ring)); |