From 01bb4a6c21c225e55a84ac606a3b213909023ba0 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Tue, 9 Apr 2024 11:59:14 +0200 Subject: Adding upstream version 2.4.120. Signed-off-by: Daniel Baumann --- etnaviv/etnaviv_device.c | 115 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 115 insertions(+) create mode 100644 etnaviv/etnaviv_device.c (limited to 'etnaviv/etnaviv_device.c') diff --git a/etnaviv/etnaviv_device.c b/etnaviv/etnaviv_device.c new file mode 100644 index 0000000..699df25 --- /dev/null +++ b/etnaviv/etnaviv_device.c @@ -0,0 +1,115 @@ +/* + * 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 +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#include "etnaviv_priv.h" +#include "etnaviv_drmif.h" + +static pthread_mutex_t table_lock = PTHREAD_MUTEX_INITIALIZER; + +drm_public struct etna_device *etna_device_new(int fd) +{ + struct etna_device *dev = calloc(sizeof(*dev), 1); + + if (!dev) + return NULL; + + atomic_set(&dev->refcnt, 1); + dev->fd = fd; + dev->handle_table = drmHashCreate(); + dev->name_table = drmHashCreate(); + etna_bo_cache_init(&dev->bo_cache); + + 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. */ +drm_public 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; +} + +drm_public struct etna_device *etna_device_ref(struct etna_device *dev) +{ + atomic_inc(&dev->refcnt); + + return dev; +} + +static void etna_device_del_impl(struct etna_device *dev) +{ + etna_bo_cache_cleanup(&dev->bo_cache, 0); + drmHashDestroy(dev->handle_table); + drmHashDestroy(dev->name_table); + + if (dev->closefd) + close(dev->fd); + + free(dev); +} + +drm_private void etna_device_del_locked(struct etna_device *dev) +{ + if (!atomic_dec_and_test(&dev->refcnt)) + return; + + etna_device_del_impl(dev); +} + +drm_public void etna_device_del(struct etna_device *dev) +{ + if (!atomic_dec_and_test(&dev->refcnt)) + return; + + pthread_mutex_lock(&table_lock); + etna_device_del_impl(dev); + pthread_mutex_unlock(&table_lock); +} + +drm_public int etna_device_fd(struct etna_device *dev) +{ + return dev->fd; +} -- cgit v1.2.3