static void radeon_winsys_destroy(struct radeon_winsys *rws)
{
struct radeon_drm_winsys *ws = (struct radeon_drm_winsys*)rws;
if (ws->thread) {
ws->kill_thread = 1;
pipe_semaphore_signal(&ws->cs_queued);
pipe_thread_wait(ws->thread);
}
pipe_semaphore_destroy(&ws->cs_queued);
pipe_condvar_destroy(ws->cs_queue_empty);
if (!pipe_reference(&ws->base.reference, NULL)) {
return;
}
pipe_mutex_destroy(ws->hyperz_owner_mutex);
pipe_mutex_destroy(ws->cmask_owner_mutex);
pipe_mutex_destroy(ws->cs_stack_lock);
ws->cman->destroy(ws->cman);
ws->kman->destroy(ws->kman);
if (ws->gen >= DRV_R600) {
radeon_surface_manager_free(ws->surf_man);
}
if (fd_tab) {
util_hash_table_remove(fd_tab, intptr_to_pointer(ws->fd));
}
FREE(rws);
}
struct pipe_screen *
virgl_drm_screen_create(int fd)
{
struct pipe_screen *pscreen = NULL;
mtx_lock(&virgl_screen_mutex);
if (!fd_tab) {
fd_tab = util_hash_table_create(hash_fd, compare_fd);
if (!fd_tab)
goto unlock;
}
pscreen = util_hash_table_get(fd_tab, intptr_to_pointer(fd));
if (pscreen) {
virgl_screen(pscreen)->refcnt++;
} else {
struct virgl_winsys *vws;
int dup_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3);
vws = virgl_drm_winsys_create(dup_fd);
pscreen = virgl_create_screen(vws);
if (pscreen) {
util_hash_table_set(fd_tab, intptr_to_pointer(dup_fd), pscreen);
/* Bit of a hack, to avoid circular linkage dependency,
* ie. pipe driver having to call in to winsys, we
* override the pipe drivers screen->destroy():
*/
virgl_screen(pscreen)->winsys_priv = pscreen->destroy;
pscreen->destroy = virgl_drm_screen_destroy;
}
}
unlock:
mtx_unlock(&virgl_screen_mutex);
return pscreen;
}
bool nouveau_drm_screen_unref(struct nouveau_screen *screen)
{
int ret;
if (screen->refcount == -1)
return true;
pipe_mutex_lock(nouveau_screen_mutex);
ret = --screen->refcount;
assert(ret >= 0);
if (ret == 0)
util_hash_table_remove(fd_tab, intptr_to_pointer(screen->drm->fd));
pipe_mutex_unlock(nouveau_screen_mutex);
return ret == 0;
}
static bool radeon_winsys_unref(struct radeon_winsys *ws)
{
struct radeon_drm_winsys *rws = (struct radeon_drm_winsys*)ws;
bool destroy;
/* When the reference counter drops to zero, remove the fd from the table.
* This must happen while the mutex is locked, so that
* radeon_drm_winsys_create in another thread doesn't get the winsys
* from the table when the counter drops to 0. */
pipe_mutex_lock(fd_tab_mutex);
destroy = pipe_reference(&rws->reference, NULL);
if (destroy && fd_tab)
util_hash_table_remove(fd_tab, intptr_to_pointer(rws->fd));
pipe_mutex_unlock(fd_tab_mutex);
return destroy;
}
PUBLIC struct pipe_screen *
nouveau_drm_screen_create(int fd)
{
struct nouveau_drm *drm = NULL;
struct nouveau_device *dev = NULL;
struct nouveau_screen *(*init)(struct nouveau_device *);
struct nouveau_screen *screen = NULL;
int ret, dupfd;
pipe_mutex_lock(nouveau_screen_mutex);
if (!fd_tab) {
fd_tab = util_hash_table_create(hash_fd, compare_fd);
if (!fd_tab) {
pipe_mutex_unlock(nouveau_screen_mutex);
return NULL;
}
}
screen = util_hash_table_get(fd_tab, intptr_to_pointer(fd));
if (screen) {
screen->refcount++;
pipe_mutex_unlock(nouveau_screen_mutex);
return &screen->base;
}
/* Since the screen re-use is based on the device node and not the fd,
* create a copy of the fd to be owned by the device. Otherwise a
* scenario could occur where two screens are created, and the first
* one is shut down, along with the fd being closed. The second
* (identical) screen would now have a reference to the closed fd. We
* avoid this by duplicating the original fd. Note that
* nouveau_device_wrap does not close the fd in case of a device
* creation error.
*/
dupfd = dup(fd);
ret = nouveau_drm_new(dupfd, &drm);
if (ret)
goto err;
ret = nouveau_device_new(&drm->client, NV_DEVICE,
&(struct nv_device_v0) {
.device = ~0ULL,
}, sizeof(struct nv_device_v0), &dev);
static void
virgl_drm_screen_destroy(struct pipe_screen *pscreen)
{
struct virgl_screen *screen = virgl_screen(pscreen);
boolean destroy;
mtx_lock(&virgl_screen_mutex);
destroy = --screen->refcnt == 0;
if (destroy) {
int fd = virgl_drm_winsys(screen->vws)->fd;
util_hash_table_remove(fd_tab, intptr_to_pointer(fd));
}
mtx_unlock(&virgl_screen_mutex);
if (destroy) {
pscreen->destroy = screen->winsys_priv;
pscreen->destroy(pscreen);
}
}
PUBLIC struct radeon_winsys *
radeon_drm_winsys_create(int fd, radeon_screen_create_t screen_create)
{
struct radeon_drm_winsys *ws;
pipe_mutex_lock(fd_tab_mutex);
if (!fd_tab) {
fd_tab = util_hash_table_create(hash_fd, compare_fd);
}
ws = util_hash_table_get(fd_tab, intptr_to_pointer(fd));
if (ws) {
pipe_reference(NULL, &ws->reference);
pipe_mutex_unlock(fd_tab_mutex);
return &ws->base;
}
ws = CALLOC_STRUCT(radeon_drm_winsys);
if (!ws) {
pipe_mutex_unlock(fd_tab_mutex);
return NULL;
}
ws->fd = dup(fd);
if (!do_winsys_init(ws))
goto fail;
/* Create managers. */
ws->kman = radeon_bomgr_create(ws);
if (!ws->kman)
goto fail;
ws->cman = pb_cache_manager_create(ws->kman, 500000, 2.0f, 0,
MIN2(ws->info.vram_size, ws->info.gart_size));
if (!ws->cman)
goto fail;
if (ws->gen >= DRV_R600) {
ws->surf_man = radeon_surface_manager_new(ws->fd);
if (!ws->surf_man)
goto fail;
}
/* init reference */
pipe_reference_init(&ws->reference, 1);
/* Set functions. */
ws->base.unref = radeon_winsys_unref;
ws->base.destroy = radeon_winsys_destroy;
ws->base.query_info = radeon_query_info;
ws->base.cs_request_feature = radeon_cs_request_feature;
ws->base.query_value = radeon_query_value;
ws->base.read_registers = radeon_read_registers;
radeon_bomgr_init_functions(ws);
radeon_drm_cs_init_functions(ws);
radeon_surface_init_functions(ws);
pipe_mutex_init(ws->hyperz_owner_mutex);
pipe_mutex_init(ws->cmask_owner_mutex);
pipe_mutex_init(ws->cs_stack_lock);
ws->ncs = 0;
pipe_semaphore_init(&ws->cs_queued, 0);
if (ws->num_cpus > 1 && debug_get_option_thread())
ws->thread = pipe_thread_create(radeon_drm_cs_emit_ioctl, ws);
/* Create the screen at the end. The winsys must be initialized
* completely.
*
* Alternatively, we could create the screen based on "ws->gen"
* and link all drivers into one binary blob. */
ws->base.screen = screen_create(&ws->base);
if (!ws->base.screen) {
radeon_winsys_destroy(&ws->base);
pipe_mutex_unlock(fd_tab_mutex);
return NULL;
}
util_hash_table_set(fd_tab, intptr_to_pointer(ws->fd), ws);
/* We must unlock the mutex once the winsys is fully initialized, so that
* other threads attempting to create the winsys from the same fd will
* get a fully initialized winsys and not just half-way initialized. */
pipe_mutex_unlock(fd_tab_mutex);
return &ws->base;
fail:
pipe_mutex_unlock(fd_tab_mutex);
if (ws->cman)
ws->cman->destroy(ws->cman);
if (ws->kman)
ws->kman->destroy(ws->kman);
if (ws->surf_man)
radeon_surface_manager_free(ws->surf_man);
if (ws->fd >= 0)
close(ws->fd);
FREE(ws);
return NULL;
}
PUBLIC struct pipe_screen *
nouveau_drm_screen_create(int fd)
{
struct nouveau_device *dev = NULL;
struct pipe_screen *(*init)(struct nouveau_device *);
struct nouveau_screen *screen;
int ret, dupfd = -1;
pipe_mutex_lock(nouveau_screen_mutex);
if (!fd_tab) {
fd_tab = util_hash_table_create(hash_fd, compare_fd);
if (!fd_tab)
goto err;
}
screen = util_hash_table_get(fd_tab, intptr_to_pointer(fd));
if (screen) {
screen->refcount++;
pipe_mutex_unlock(nouveau_screen_mutex);
return &screen->base;
}
/* Since the screen re-use is based on the device node and not the fd,
* create a copy of the fd to be owned by the device. Otherwise a
* scenario could occur where two screens are created, and the first
* one is shut down, along with the fd being closed. The second
* (identical) screen would now have a reference to the closed fd. We
* avoid this by duplicating the original fd. Note that
* nouveau_device_wrap does not close the fd in case of a device
* creation error.
*/
dupfd = dup(fd);
ret = nouveau_device_wrap(dupfd, 1, &dev);
if (ret)
goto err;
switch (dev->chipset & ~0xf) {
case 0x30:
case 0x40:
case 0x60:
init = nv30_screen_create;
break;
case 0x50:
case 0x80:
case 0x90:
case 0xa0:
init = nv50_screen_create;
break;
case 0xc0:
case 0xd0:
case 0xe0:
case 0xf0:
case 0x100:
init = nvc0_screen_create;
break;
default:
debug_printf("%s: unknown chipset nv%02x\n", __func__,
dev->chipset);
goto err;
}
screen = (struct nouveau_screen*)init(dev);
if (!screen)
goto err;
util_hash_table_set(fd_tab, intptr_to_pointer(fd), screen);
screen->refcount = 1;
pipe_mutex_unlock(nouveau_screen_mutex);
return &screen->base;
err:
if (dev)
nouveau_device_del(&dev);
else if (dupfd >= 0)
close(dupfd);
pipe_mutex_unlock(nouveau_screen_mutex);
return NULL;
}
struct radeon_winsys *radeon_drm_winsys_create(int fd)
{
struct radeon_drm_winsys *ws;
if (!fd_tab) {
fd_tab = util_hash_table_create(hash_fd, compare_fd);
}
ws = util_hash_table_get(fd_tab, intptr_to_pointer(fd));
if (ws) {
pipe_reference(NULL, &ws->base.reference);
return &ws->base;
}
ws = CALLOC_STRUCT(radeon_drm_winsys);
if (!ws) {
return NULL;
}
ws->fd = fd;
util_hash_table_set(fd_tab, intptr_to_pointer(fd), ws);
if (!do_winsys_init(ws))
goto fail;
/* Create managers. */
ws->kman = radeon_bomgr_create(ws);
if (!ws->kman)
goto fail;
ws->cman = pb_cache_manager_create(ws->kman, 1000000);
if (!ws->cman)
goto fail;
if (ws->gen >= DRV_R600) {
ws->surf_man = radeon_surface_manager_new(fd);
if (!ws->surf_man)
goto fail;
}
/* init reference */
pipe_reference_init(&ws->base.reference, 1);
/* Set functions. */
ws->base.destroy = radeon_winsys_destroy;
ws->base.query_info = radeon_query_info;
ws->base.cs_request_feature = radeon_cs_request_feature;
ws->base.surface_init = radeon_drm_winsys_surface_init;
ws->base.surface_best = radeon_drm_winsys_surface_best;
ws->base.query_value = radeon_query_value;
radeon_bomgr_init_functions(ws);
radeon_drm_cs_init_functions(ws);
pipe_mutex_init(ws->hyperz_owner_mutex);
pipe_mutex_init(ws->cmask_owner_mutex);
pipe_mutex_init(ws->cs_stack_lock);
p_atomic_set(&ws->ncs, 0);
pipe_semaphore_init(&ws->cs_queued, 0);
pipe_condvar_init(ws->cs_queue_empty);
if (ws->num_cpus > 1 && debug_get_option_thread())
ws->thread = pipe_thread_create(radeon_drm_cs_emit_ioctl, ws);
return &ws->base;
fail:
if (ws->cman)
ws->cman->destroy(ws->cman);
if (ws->kman)
ws->kman->destroy(ws->kman);
if (ws->surf_man)
radeon_surface_manager_free(ws->surf_man);
FREE(ws);
return NULL;
}
