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