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      1 /*	$NetBSD: amdgpu_bo_list.h,v 1.2 2021/12/18 23:44:58 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright 2018 Advanced Micro Devices, Inc.
      5  *
      6  * Permission is hereby granted, free of charge, to any person obtaining a
      7  * copy of this software and associated documentation files (the "Software"),
      8  * to deal in the Software without restriction, including without limitation
      9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     10  * and/or sell copies of the Software, and to permit persons to whom the
     11  * Software is furnished to do so, subject to the following conditions:
     12  *
     13  * The above copyright notice and this permission notice shall be included in
     14  * all copies or substantial portions of the Software.
     15  *
     16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     22  * OTHER DEALINGS IN THE SOFTWARE.
     23  *
     24  */
     25 #ifndef __AMDGPU_BO_LIST_H__
     26 #define __AMDGPU_BO_LIST_H__
     27 
     28 #include <drm/ttm/ttm_execbuf_util.h>
     29 #include <drm/amdgpu_drm.h>
     30 
     31 struct amdgpu_device;
     32 struct amdgpu_bo;
     33 struct amdgpu_bo_va;
     34 struct amdgpu_fpriv;
     35 
     36 struct amdgpu_bo_list_entry {
     37 	struct ttm_validate_buffer	tv;
     38 	struct amdgpu_bo_va		*bo_va;
     39 	uint32_t			priority;
     40 	struct page			**user_pages;
     41 	bool				user_invalidated;
     42 };
     43 
     44 struct amdgpu_bo_list {
     45 	struct rcu_head rhead;
     46 	struct kref refcount;
     47 	struct amdgpu_bo *gds_obj;
     48 	struct amdgpu_bo *gws_obj;
     49 	struct amdgpu_bo *oa_obj;
     50 	unsigned first_userptr;
     51 	unsigned num_entries;
     52 };
     53 
     54 int amdgpu_bo_list_get(struct amdgpu_fpriv *fpriv, int id,
     55 		       struct amdgpu_bo_list **result);
     56 void amdgpu_bo_list_get_list(struct amdgpu_bo_list *list,
     57 			     struct list_head *validated);
     58 void amdgpu_bo_list_put(struct amdgpu_bo_list *list);
     59 int amdgpu_bo_create_list_entry_array(struct drm_amdgpu_bo_list_in *in,
     60 				      struct drm_amdgpu_bo_list_entry **info_param);
     61 
     62 int amdgpu_bo_list_create(struct amdgpu_device *adev,
     63 				 struct drm_file *filp,
     64 				 struct drm_amdgpu_bo_list_entry *info,
     65 				 unsigned num_entries,
     66 				 struct amdgpu_bo_list **list);
     67 
     68 static inline struct amdgpu_bo_list_entry *
     69 amdgpu_bo_list_array_entry(struct amdgpu_bo_list *list, unsigned index)
     70 {
     71 	struct amdgpu_bo_list_entry *array = (void *)&list[1];
     72 
     73 	return &array[index];
     74 }
     75 
     76 #define amdgpu_bo_list_for_each_entry(e, list) \
     77 	for (e = amdgpu_bo_list_array_entry(list, 0); \
     78 	     e != amdgpu_bo_list_array_entry(list, (list)->num_entries); \
     79 	     ++e)
     80 
     81 #define amdgpu_bo_list_for_each_userptr_entry(e, list) \
     82 	for (e = amdgpu_bo_list_array_entry(list, (list)->first_userptr); \
     83 	     e != amdgpu_bo_list_array_entry(list, (list)->num_entries); \
     84 	     ++e)
     85 
     86 #endif
     87