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brintos / linux-shallow public Read only

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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 10static 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	*res = kzalloc(sizeof(**res), GFP_KERNEL);16	if (!*res)17		return -ENOMEM;18 19	ttm_resource_init(bo, place, *res);20	return 0;21}22 23static void ttm_sys_man_free(struct ttm_resource_manager *man,24			     struct ttm_resource *res)25{26	ttm_resource_fini(man, res);27	kfree(res);28}29 30static const struct ttm_resource_manager_func ttm_sys_manager_func = {31	.alloc = ttm_sys_man_alloc,32	.free = ttm_sys_man_free,33};34 35void ttm_sys_man_init(struct ttm_device *bdev)36{37	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	man->use_tt = true;44	man->func = &ttm_sys_manager_func;45 46	ttm_resource_manager_init(man, bdev, 0);47	ttm_set_driver_manager(bdev, TTM_PL_SYSTEM, man);48	ttm_resource_manager_set_used(man, true);49}50