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