1 /* 2 * Copyright(c) 2016 Intel Corporation. 3 * 4 * This file is provided under a dual BSD/GPLv2 license. When using or 5 * redistributing this file, you may do so under either license. 6 * 7 * GPL LICENSE SUMMARY 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of version 2 of the GNU General Public License as 11 * published by the Free Software Foundation. 12 * 13 * This program is distributed in the hope that it will be useful, but 14 * WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * General Public License for more details. 17 * 18 * BSD LICENSE 19 * 20 * Redistribution and use in source and binary forms, with or without 21 * modification, are permitted provided that the following conditions 22 * are met: 23 * 24 * - Redistributions of source code must retain the above copyright 25 * notice, this list of conditions and the following disclaimer. 26 * - Redistributions in binary form must reproduce the above copyright 27 * notice, this list of conditions and the following disclaimer in 28 * the documentation and/or other materials provided with the 29 * distribution. 30 * - Neither the name of Intel Corporation nor the names of its 31 * contributors may be used to endorse or promote products derived 32 * from this software without specific prior written permission. 33 * 34 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 35 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 36 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 37 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 38 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 39 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 40 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 41 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 42 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 43 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 44 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 45 * 46 */ 47 #ifndef _HFI1_MMU_RB_H 48 #define _HFI1_MMU_RB_H 49 50 #include "hfi.h" 51 52 struct mmu_rb_node { 53 unsigned long addr; 54 unsigned long len; 55 unsigned long __last; 56 struct rb_node node; 57 }; 58 59 struct mmu_rb_ops { 60 bool (*filter)(struct mmu_rb_node *, unsigned long, unsigned long); 61 int (*insert)(struct rb_root *, struct mmu_rb_node *); 62 void (*remove)(struct rb_root *, struct mmu_rb_node *, 63 struct mm_struct *); 64 int (*invalidate)(struct rb_root *, struct mmu_rb_node *); 65 }; 66 67 int hfi1_mmu_rb_register(struct rb_root *root, struct mmu_rb_ops *ops); 68 void hfi1_mmu_rb_unregister(struct rb_root *); 69 int hfi1_mmu_rb_insert(struct rb_root *, struct mmu_rb_node *); 70 void hfi1_mmu_rb_remove(struct rb_root *, struct mmu_rb_node *); 71 struct mmu_rb_node *hfi1_mmu_rb_search(struct rb_root *, unsigned long, 72 unsigned long); 73 struct mmu_rb_node *hfi1_mmu_rb_extract(struct rb_root *, unsigned long, 74 unsigned long); 75 76 #endif /* _HFI1_MMU_RB_H */ 77