diff options
Diffstat (limited to 'linux-core')
| -rw-r--r-- | linux-core/i915_gem.c | 28 |
1 files changed, 19 insertions, 9 deletions
diff --git a/linux-core/i915_gem.c b/linux-core/i915_gem.c index 4dcfd2b1..e795ee77 100644 --- a/linux-core/i915_gem.c +++ b/linux-core/i915_gem.c @@ -233,6 +233,8 @@ i915_gem_reloc_and_validate_object(struct drm_gem_object *obj, struct drm_i915_gem_relocation_entry __user *relocs; struct drm_i915_gem_object *obj_priv = obj->driver_private; int i; + uint32_t last_reloc_offset = -1; + void *reloc_page = NULL; /* Choose the GTT offset for our buffer and put it there. */ if (obj_priv->gtt_space == NULL) { @@ -249,7 +251,6 @@ i915_gem_reloc_and_validate_object(struct drm_gem_object *obj, for (i = 0; i < entry->relocation_count; i++) { struct drm_gem_object *target_obj; struct drm_i915_gem_object *target_obj_priv; - void *reloc_page; uint32_t reloc_val, reloc_offset, *reloc_entry; int ret; @@ -288,13 +289,20 @@ i915_gem_reloc_and_validate_object(struct drm_gem_object *obj, * perform. */ reloc_offset = obj_priv->gtt_offset + reloc.offset; - reloc_page = ioremap(dev->agp->base + - (reloc_offset & ~(PAGE_SIZE - 1)), - PAGE_SIZE); - if (reloc_page == NULL) - { - drm_gem_object_unreference (target_obj); - return -ENOMEM; + if (reloc_page == NULL || + (last_reloc_offset & ~(PAGE_SIZE - 1)) != + (reloc_offset & ~(PAGE_SIZE - 1))) { + if (reloc_page != NULL) + iounmap(reloc_page); + + reloc_page = ioremap(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); + return -ENOMEM; + } } reloc_entry = (uint32_t *)((char *)reloc_page + @@ -308,10 +316,12 @@ i915_gem_reloc_and_validate_object(struct drm_gem_object *obj, #endif writel (reloc_val, reloc_entry); - iounmap(reloc_page); drm_gem_object_unreference (target_obj); } + if (reloc_page != NULL) + iounmap(reloc_page); + #if WATCH_BUF i915_gem_dump_object (obj, 128, __FUNCTION__, ~0); #endif |