@@ -386,8 +386,7 @@ nouveau_bo_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
break;
case TTM_PL_VRAM:
man->flags = TTM_MEMTYPE_FLAG_FIXED |
- TTM_MEMTYPE_FLAG_MAPPABLE |
- TTM_MEMTYPE_FLAG_NEEDS_IOREMAP;
+ TTM_MEMTYPE_FLAG_MAPPABLE;
man->available_caching = TTM_PL_FLAG_UNCACHED |
TTM_PL_FLAG_WC;
man->default_caching = TTM_PL_FLAG_WC;
@@ -403,8 +402,7 @@ nouveau_bo_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
case TTM_PL_TT:
switch (dev_priv->gart_info.type) {
case NOUVEAU_GART_AGP:
- man->flags = TTM_MEMTYPE_FLAG_MAPPABLE |
- TTM_MEMTYPE_FLAG_NEEDS_IOREMAP;
+ man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
man->available_caching = TTM_PL_FLAG_UNCACHED;
man->default_caching = TTM_PL_FLAG_UNCACHED;
break;
@@ -761,6 +759,63 @@ nouveau_bo_verify_access(struct ttm_buffer_object *bo, struct file *filp)
return 0;
}
+static int
+nouveau_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
+{
+ struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
+ struct drm_nouveau_private *dev_priv = nouveau_bdev(bdev);
+ struct drm_device *dev = dev_priv->dev;
+
+ mem->bus.addr = NULL;
+ mem->bus.offset = 0;
+ mem->bus.size = mem->num_pages << PAGE_SHIFT;
+ mem->bus.base = 0;
+ mem->bus.is_iomem = false;
+ if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE))
+ return -EINVAL;
+ switch (mem->mem_type) {
+ case TTM_PL_SYSTEM:
+ /* System memory */
+ return 0;
+ case TTM_PL_TT:
+#if __OS_HAS_AGP
+ if (dev_priv->gart_info.type == NOUVEAU_GART_AGP) {
+ mem->bus.offset = mem->mm_node->start << PAGE_SHIFT;
+ mem->bus.base = dev_priv->gart_info.aper_base;
+ mem->bus.is_iomem = true;
+ mem->bus.addr = ioremap_wc(mem->bus.base + mem->bus.offset, mem->bus.size);
+ if (mem->bus.addr == NULL)
+ return -ENOMEM;
+ }
+#endif
+ break;
+ case TTM_PL_VRAM:
+ mem->bus.offset = mem->mm_node->start << PAGE_SHIFT;
+ mem->bus.base = drm_get_resource_start(dev, 1);
+ mem->bus.is_iomem = true;
+ mem->bus.addr = ioremap_wc(mem->bus.base + mem->bus.offset, mem->bus.size);
+ if (mem->bus.addr == NULL)
+ return -ENOMEM;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static void
+nouveau_ttm_io_mem_free(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
+{
+ if (mem->bus.addr)
+ iounmap(mem->bus.addr);
+}
+
+static int
+nouveau_ttm_fault_reserve_notify(struct ttm_buffer_object *bo)
+{
+ return 0;
+}
+
struct ttm_bo_driver nouveau_bo_driver = {
.create_ttm_backend_entry = nouveau_bo_create_ttm_backend_entry,
.invalidate_caches = nouveau_bo_invalidate_caches,
@@ -773,5 +828,8 @@ struct ttm_bo_driver nouveau_bo_driver = {
.sync_obj_flush = nouveau_fence_flush,
.sync_obj_unref = nouveau_fence_unref,
.sync_obj_ref = nouveau_fence_ref,
+ .fault_reserve_notify = &nouveau_ttm_fault_reserve_notify,
+ .io_mem_reserve = &nouveau_ttm_io_mem_reserve,
+ .io_mem_free = &nouveau_ttm_io_mem_free,
};