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/*
* 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 "etnaviv_priv.h"
#include "etnaviv_drmif.h"
static pthread_mutex_t etna_drm_table_lock = PTHREAD_MUTEX_INITIALIZER;
static uint32_t
u32_hash(const void *key)
{
return _mesa_hash_data(key, sizeof(uint32_t));
}
static bool
u32_equals(const void *key1, const void *key2)
{
return *(const uint32_t *)key1 == *(const uint32_t *)key2;
}
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, u32_hash, u32_equals);
dev->name_table = _mesa_hash_table_create(NULL, u32_hash, u32_equals);
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;
}
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