1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2011 The FreeBSD Foundation 5 * All rights reserved. 6 * 7 * This software was developed by Konstantin Belousov under sponsorship from 8 * the FreeBSD Foundation. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * $FreeBSD$ 32 * 33 */ 34 35 #ifndef DRM_GEM_NAMES_H 36 #define DRM_GEM_NAMES_H 37 38 #include <sys/types.h> 39 #include <sys/lock.h> 40 #include <sys/mutex.h> 41 #include <sys/queue.h> 42 43 struct drm_gem_name { 44 uint32_t name; 45 void *ptr; 46 LIST_ENTRY(drm_gem_name) link; 47 }; 48 49 struct drm_gem_names { 50 struct mtx lock; 51 LIST_HEAD(drm_gem_names_head, drm_gem_name) *names_hash; 52 u_long hash_mask; 53 struct unrhdr *unr; 54 }; 55 56 void drm_gem_names_init(struct drm_gem_names *names); 57 void drm_gem_names_fini(struct drm_gem_names *names); 58 uint32_t drm_gem_find_name(struct drm_gem_names *names, void *ptr); 59 void *drm_gem_find_ptr(struct drm_gem_names *names, uint32_t name); 60 void *drm_gem_name_ref(struct drm_gem_names *names, uint32_t name, 61 void (*ref)(void *)); 62 int drm_gem_name_create(struct drm_gem_names *names, void *obj, uint32_t *name); 63 void drm_gem_names_foreach(struct drm_gem_names *names, 64 int (*f)(uint32_t, void *, void *), void *arg); 65 void *drm_gem_names_remove(struct drm_gem_names *names, uint32_t name); 66 67 #endif 68