| /* |
| * 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 <christian.gmeiner@gmail.com> |
| */ |
| |
| #include "util/hash_table.h" |
| #include "util/os_file.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 = os_dupfd_cloexec(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; |
| } |