Line data    Source code

       1             : /* SPDX-License-Identifier: GPL-2.0 OR MIT */
       2             : 
       3             : #include <drm/ttm/ttm_resource.h>
       4             : #include <drm/ttm/ttm_device.h>
       5             : #include <drm/ttm/ttm_placement.h>
       6             : #include <linux/slab.h>
       7             : 
       8             : #include "ttm_module.h"
       9             : 
      10           0 : static int ttm_sys_man_alloc(struct ttm_resource_manager *man,
      11             :                              struct ttm_buffer_object *bo,
      12             :                              const struct ttm_place *place,
      13             :                              struct ttm_resource **res)
      14             : {
      15           0 :         *res = kzalloc(sizeof(**res), GFP_KERNEL);
      16           0 :         if (!*res)
      17             :                 return -ENOMEM;
      18             : 
      19           0 :         ttm_resource_init(bo, place, *res);
      20           0 :         return 0;
      21             : }
      22             : 
      23           0 : static void ttm_sys_man_free(struct ttm_resource_manager *man,
      24             :                              struct ttm_resource *res)
      25             : {
      26           0 :         ttm_resource_fini(man, res);
      27           0 :         kfree(res);
      28           0 : }
      29             : 
      30             : static const struct ttm_resource_manager_func ttm_sys_manager_func = {
      31             :         .alloc = ttm_sys_man_alloc,
      32             :         .free = ttm_sys_man_free,
      33             : };
      34             : 
      35           0 : void ttm_sys_man_init(struct ttm_device *bdev)
      36             : {
      37           0 :         struct ttm_resource_manager *man = &bdev->sysman;
      38             : 
      39             :         /*
      40             :          * Initialize the system memory buffer type.
      41             :          * Other types need to be driver / IOCTL initialized.
      42             :          */
      43           0 :         man->use_tt = true;
      44           0 :         man->func = &ttm_sys_manager_func;
      45             : 
      46           0 :         ttm_resource_manager_init(man, bdev, 0);
      47           0 :         ttm_set_driver_manager(bdev, TTM_PL_SYSTEM, man);
      48           0 :         ttm_resource_manager_set_used(man, true);
      49           0 : }