#include <drm/ttm/ttm_resource.h>
#include <drm/ttm/ttm_bo_driver.h>
+void ttm_resource_init(struct ttm_buffer_object *bo,
+ const struct ttm_place *place,
+ struct ttm_resource *res)
+{
+ res->mm_node = NULL;
+ res->start = 0;
+ res->num_pages = PFN_UP(bo->base.size);
+ res->mem_type = place->mem_type;
+ res->placement = place->flags;
+ res->bus.addr = NULL;
+ res->bus.offset = 0;
+ res->bus.is_iomem = false;
+ res->bus.caching = ttm_cached;
+}
+EXPORT_SYMBOL(ttm_resource_init);
+
int ttm_resource_alloc(struct ttm_buffer_object *bo,
const struct ttm_place *place,
- struct ttm_resource *res)
+ struct ttm_resource **res_ptr)
{
struct ttm_resource_manager *man =
- ttm_manager_type(bo->bdev, res->mem_type);
-
- res->mm_node = NULL;
- if (!man->func || !man->func->alloc)
- return 0;
+ ttm_manager_type(bo->bdev, place->mem_type);
+ struct ttm_resource *res;
+ int r;
+
+ res = kmalloc(sizeof(*res), GFP_KERNEL);
+ if (!res)
+ return -ENOMEM;
+
+ ttm_resource_init(bo, place, res);
+ r = man->func->alloc(man, bo, place, res);
+ if (r) {
+ kfree(res);
+ return r;
+ }
- return man->func->alloc(man, bo, place, res);
+ *res_ptr = res;
+ return 0;
}
-void ttm_resource_free(struct ttm_buffer_object *bo, struct ttm_resource *res)
+void ttm_resource_free(struct ttm_buffer_object *bo, struct ttm_resource **res)
{
- struct ttm_resource_manager *man =
- ttm_manager_type(bo->bdev, res->mem_type);
+ struct ttm_resource_manager *man;
- if (man->func && man->func->free)
- man->func->free(man, res);
+ if (!*res)
+ return;
- res->mm_node = NULL;
- res->mem_type = TTM_PL_SYSTEM;
+ man = ttm_manager_type(bo->bdev, (*res)->mem_type);
+ man->func->free(man, *res);
+ kfree(*res);
+ *res = NULL;
}
EXPORT_SYMBOL(ttm_resource_free);
drm_printf(p, " use_type: %d\n", man->use_type);
drm_printf(p, " use_tt: %d\n", man->use_tt);
drm_printf(p, " size: %llu\n", man->size);
- if (man->func && man->func->debug)
- (*man->func->debug)(man, p);
+ if (man->func->debug)
+ man->func->debug(man, p);
}
EXPORT_SYMBOL(ttm_resource_manager_debug);