cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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ttm_sys_manager.c (1184B)

      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}