/* * Copyright (C) 2014 Etnaviv Project * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the next * paragraph) shall be included in all copies or substantial portions of the * Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. * * Authors: * Christian Gmeiner */ #include "util/hash_table.h" #include "etnaviv_priv.h" #include "etnaviv_drmif.h" static pthread_mutex_t etna_drm_table_lock = PTHREAD_MUTEX_INITIALIZER; struct etna_device *etna_device_new(int fd) { struct etna_device *dev = calloc(sizeof(*dev), 1); struct drm_etnaviv_param req = { .param = ETNAVIV_PARAM_SOFTPIN_START_ADDR, }; int ret; if (!dev) return NULL; p_atomic_set(&dev->refcnt, 1); dev->fd = fd; dev->handle_table = _mesa_hash_table_create(NULL, _mesa_hash_u32, _mesa_key_u32_equal); dev->name_table = _mesa_hash_table_create(NULL, _mesa_hash_u32, _mesa_key_u32_equal); etna_bo_cache_init(&dev->bo_cache); ret = drmCommandWriteRead(dev->fd, DRM_ETNAVIV_GET_PARAM, &req, sizeof(req)); if (!ret && req.value != ~0ULL) { const uint64_t _4GB = 1ull << 32; util_vma_heap_init(&dev->address_space, req.value, _4GB - req.value); dev->use_softpin = 1; } return dev; } /* like etna_device_new() but creates it's own private dup() of the fd * which is close()d when the device is finalized. */ struct etna_device *etna_device_new_dup(int fd) { int dup_fd = dup(fd); struct etna_device *dev = etna_device_new(dup_fd); if (dev) dev->closefd = 1; else close(dup_fd); return dev; } struct etna_device *etna_device_ref(struct etna_device *dev) { p_atomic_inc(&dev->refcnt); return dev; } static void etna_device_del_impl(struct etna_device *dev) { etna_bo_cache_cleanup(&dev->bo_cache, 0); if (dev->use_softpin) util_vma_heap_finish(&dev->address_space); _mesa_hash_table_destroy(dev->handle_table, NULL); _mesa_hash_table_destroy(dev->name_table, NULL); if (dev->closefd) close(dev->fd); free(dev); } void etna_device_del_locked(struct etna_device *dev) { if (!p_atomic_dec_zero(&dev->refcnt)) return; etna_device_del_impl(dev); } void etna_device_del(struct etna_device *dev) { if (!p_atomic_dec_zero(&dev->refcnt)) return; pthread_mutex_lock(&etna_drm_table_lock); etna_device_del_impl(dev); pthread_mutex_unlock(&etna_drm_table_lock); } int etna_device_fd(struct etna_device *dev) { return dev->fd; } bool etnaviv_device_softpin_capable(struct etna_device *dev) { return !!dev->use_softpin; }