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/* SPDX-License-Identifier: GPL-2.0 OR MIT */
/*
* Copyright 2021 VMware, Inc.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*/
#include "vmwgfx_drv.h"
#include <drm/ttm/ttm_device.h>
#include <drm/ttm/ttm_placement.h>
#include <drm/ttm/ttm_resource.h>
#include <linux/slab.h>
static int vmw_sys_man_alloc(struct ttm_resource_manager *man,
struct ttm_buffer_object *bo,
const struct ttm_place *place,
struct ttm_resource **res)
{
*res = kzalloc(sizeof(**res), GFP_KERNEL);
if (!*res)
return -ENOMEM;
ttm_resource_init(bo, place, *res);
return 0;
}
static void vmw_sys_man_free(struct ttm_resource_manager *man,
struct ttm_resource *res)
{
ttm_resource_fini(man, res);
kfree(res);
}
static const struct ttm_resource_manager_func vmw_sys_manager_func = {
.alloc = vmw_sys_man_alloc,
.free = vmw_sys_man_free,
};
int vmw_sys_man_init(struct vmw_private *dev_priv)
{
struct ttm_device *bdev = &dev_priv->bdev;
struct ttm_resource_manager *man =
kzalloc(sizeof(*man), GFP_KERNEL);
if (!man)
return -ENOMEM;
man->use_tt = true;
man->func = &vmw_sys_manager_func;
ttm_resource_manager_init(man, bdev, 0);
ttm_set_driver_manager(bdev, VMW_PL_SYSTEM, man);
ttm_resource_manager_set_used(man, true);
return 0;
}
void vmw_sys_man_fini(struct vmw_private *dev_priv)
{
struct ttm_resource_manager *man = ttm_manager_type(&dev_priv->bdev,
VMW_PL_SYSTEM);
ttm_resource_manager_evict_all(&dev_priv->bdev, man);
ttm_resource_manager_set_used(man, false);
ttm_resource_manager_cleanup(man);
ttm_set_driver_manager(&dev_priv->bdev, VMW_PL_SYSTEM, NULL);
kfree(man);
}
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