struct fd_bo * fd_bo_from_name(struct fd_device *dev, uint32_t name)
{
struct drm_gem_open req = {
.name = name,
};
struct fd_bo *bo;
pthread_mutex_lock(&table_lock);
/* check name table first, to see if bo is already open: */
bo = lookup_bo(dev->name_table, name);
if (bo)
goto out_unlock;
if (drmIoctl(dev->fd, DRM_IOCTL_GEM_OPEN, &req)) {
ERROR_MSG("gem-open failed: %s", strerror(errno));
goto out_unlock;
}
bo = lookup_bo(dev->handle_table, req.handle);
if (bo)
goto out_unlock;
bo = bo_from_handle(dev, req.size, req.handle);
if (bo)
set_name(bo, name);
out_unlock:
pthread_mutex_unlock(&table_lock);
return bo;
}
struct fd_bo *
fd_bo_from_dmabuf(struct fd_device *dev, int fd)
{
int ret, size;
uint32_t handle;
struct fd_bo *bo;
pthread_mutex_lock(&table_lock);
ret = drmPrimeFDToHandle(dev->fd, fd, &handle);
if (ret) {
return NULL;
}
bo = lookup_bo(dev->handle_table, handle);
if (bo)
goto out_unlock;
/* lseek() to get bo size */
size = lseek(fd, 0, SEEK_END);
lseek(fd, 0, SEEK_CUR);
bo = bo_from_handle(dev, size, handle);
VG_BO_ALLOC(bo);
out_unlock:
pthread_mutex_unlock(&table_lock);
return bo;
}
drm_public struct fd_bo *
fd_bo_from_handle(struct fd_device *dev, uint32_t handle, uint32_t size)
{
struct fd_bo *bo = NULL;
pthread_mutex_lock(&table_lock);
bo = lookup_bo(dev->handle_table, handle);
if (bo)
goto out_unlock;
bo = bo_from_handle(dev, size, handle);
out_unlock:
pthread_mutex_unlock(&table_lock);
return bo;
}
drm_public int drm_tegra_bo_wrap(struct drm_tegra_bo **bop, struct drm_tegra *drm,
uint32_t handle, uint32_t flags, uint32_t size)
{
struct drm_tegra_bo *bo;
int err = 0;
if (!drm || !bop)
return -EINVAL;
pthread_mutex_lock(&table_lock);
/* check handle table to see if BO is already open */
bo = lookup_bo(drm->handle_table, handle);
if (bo)
goto unlock;
bo = calloc(1, sizeof(*bo));
if (!bo) {
err = -ENOMEM;
goto unlock;
}
DRMINITLISTHEAD(&bo->push_list);
DRMINITLISTHEAD(&bo->bo_list);
atomic_set(&bo->ref, 1);
bo->handle = handle;
bo->flags = flags;
bo->size = size;
bo->drm = drm;
VG_BO_ALLOC(bo);
/* add ourselves into the handle table */
drmHashInsert(drm->handle_table, handle, bo);
DBG_BO(bo, "success\n");
unlock:
pthread_mutex_unlock(&table_lock);
*bop = bo;
return err;
}
/* get buffer info */
static int get_buffer_info(struct etna_bo *bo)
{
struct drm_vivante_gem_info req = {
.handle = bo->handle,
};
int ret = drmCommandWriteRead(bo->dev->fd, DRM_VIVANTE_GEM_INFO,
&req, sizeof(req));
if (ret) {
return ret;
}
/* really all we need for now is mmap offset */
bo->offset = req.offset;
return 0;
}
/* import a buffer object from DRI2 name */
struct etna_bo * etna_bo_from_name(struct etna_device *dev, uint32_t name)
{
struct drm_gem_open req = {
.name = name,
};
struct etna_bo *bo;
pthread_mutex_lock(&table_lock);
/* check name table first, to see if bo is already open: */
bo = lookup_bo(dev, req.handle);
if (bo)
goto out_unlock;
if (drmIoctl(dev->fd, DRM_IOCTL_GEM_OPEN, &req)) {
ERROR_MSG("gem-open failed: %s", strerror(errno));
goto out_unlock;
}
bo = lookup_bo(dev, req.handle);
if (bo)
goto out_unlock;
bo = bo_from_handle(dev, req.size, req.handle);
if (bo)
set_name(bo, name);
out_unlock:
pthread_mutex_unlock(&table_lock);
return bo;
}
/* import a buffer from dmabuf fd, does not take ownership of the
* fd so caller should close() the fd when it is otherwise done
* with it (even if it is still using the 'struct etna_bo *')
*/
struct etna_bo * etna_bo_from_dmabuf(struct etna_device *dev, int fd)
{
#if 0
struct etna_bo *bo = NULL;
struct drm_prime_handle req = {
.fd = fd,
};
int ret;
pthread_mutex_lock(&table_lock);
ret = drmIoctl(dev->fd, DRM_IOCTL_PRIME_FD_TO_HANDLE, &req);
if (ret) {
goto fail;
}
bo = lookup_bo(dev, req.handle);
if (!bo) {
bo = bo_from_handle(dev, req.handle);
}
pthread_mutex_unlock(&table_lock);
return bo;
fail:
pthread_mutex_unlock(&table_lock);
free(bo);
#endif
return NULL;
}
/* destroy a buffer object */
void etna_bo_del(struct etna_bo *bo)
{
if (!bo)
return;
if (!atomic_dec_and_test(&bo->refcnt))
return;
if (bo->map)
munmap(bo->map, bo->size);
if (bo->fd)
close(bo->fd);
if (bo->handle) {
struct drm_gem_close req = {
.handle = bo->handle,
};
pthread_mutex_lock(&table_lock);
drmHashDelete(bo->dev->handle_table, bo->handle);
drmIoctl(bo->dev->fd, DRM_IOCTL_GEM_CLOSE, &req);
pthread_mutex_unlock(&table_lock);
}
etna_device_del(bo->dev);
free(bo);
}
/* get the global flink/DRI2 buffer name */
int etna_bo_get_name(struct etna_bo *bo, uint32_t *name)
{
if (!bo->name) {
struct drm_gem_flink req = {
.handle = bo->handle,
};
int ret;
ret = drmIoctl(bo->dev->fd, DRM_IOCTL_GEM_FLINK, &req);
if (ret) {
return ret;
}
bo->name = req.name;
}
*name = bo->name;
return 0;
}
uint32_t etna_bo_handle(struct etna_bo *bo)
{
return bo->handle;
}
/* caller owns the dmabuf fd that is returned and is responsible
* to close() it when done
*/
int etna_bo_dmabuf(struct etna_bo *bo)
{
if (!bo->fd) {
struct drm_prime_handle req = {
.handle = bo->handle,
.flags = DRM_CLOEXEC,
};
int ret;
ret = drmIoctl(bo->dev->fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &req);
if (ret) {
return ret;
}
bo->fd = req.fd;
}
return dup(bo->fd);
}
uint32_t etna_bo_size(struct etna_bo *bo)
{
if (!bo->size) {
get_buffer_info(bo);
}
return bo->size;
}
void * etna_bo_map(struct etna_bo *bo)
{
if (!bo->map) {
if (!bo->offset) {
get_buffer_info(bo);
}
bo->map = mmap(0, bo->size, PROT_READ | PROT_WRITE,
MAP_SHARED, bo->dev->fd, bo->offset);
if (bo->map == MAP_FAILED) {
bo->map = NULL;
}
}
return bo->map;
}
int etna_bo_cpu_prep(struct etna_bo *bo, uint32_t op)
{
return 0;
}
void etna_bo_cpu_fini(struct etna_bo *bo)
{
}
drm_public
int drm_tegra_bo_from_dmabuf(struct drm_tegra_bo **bop, struct drm_tegra *drm,
int fd, uint32_t flags)
{
struct drm_tegra_bo *dup;
struct drm_tegra_bo *bo;
uint32_t handle;
uint32_t size;
int err;
if (!drm || !bop)
return -EINVAL;
pthread_mutex_lock(&table_lock);
bo = calloc(1, sizeof(*bo));
if (!bo) {
err = -ENOMEM;
goto unlock;
}
err = drmPrimeFDToHandle(drm->fd, fd, &handle);
if (err) {
free(bo);
bo = NULL;
goto unlock;
}
/* check handle table to see if BO is already open */
dup = lookup_bo(drm->handle_table, handle);
if (dup) {
DBG_BO(dup, "success reused\n");
free(bo);
bo = dup;
goto unlock;
}
errno = 0;
/* lseek() to get bo size */
size = lseek(fd, 0, SEEK_END);
lseek(fd, 0, SEEK_CUR);
/* store lseek() error number */
err = -errno;
atomic_set(&bo->ref, 1);
bo->handle = handle;
bo->flags = flags;
bo->size = size;
bo->drm = drm;
VG_BO_ALLOC(bo);
/* add ourself into the handle table: */
drmHashInsert(drm->handle_table, handle, bo);
/* handle lseek() error */
if (err) {
VDBG_BO(bo, "lseek failed %d (%s)\n", err, strerror(-err));
drm_tegra_bo_free(bo);
bo = NULL;
} else {
DBG_BO(bo, "success\n");
}
unlock:
pthread_mutex_unlock(&table_lock);
*bop = bo;
return err;
}
drm_public
int drm_tegra_bo_from_name(struct drm_tegra_bo **bop, struct drm_tegra *drm,
uint32_t name, uint32_t flags)
{
struct drm_gem_open args;
struct drm_tegra_bo *dup;
struct drm_tegra_bo *bo;
int err = 0;
if (!drm || !name || !bop)
return -EINVAL;
pthread_mutex_lock(&table_lock);
/* check name table first, to see if BO is already open */
bo = lookup_bo(drm->name_table, name);
if (bo)
goto unlock;
bo = calloc(1, sizeof(*bo));
if (!bo) {
err = -ENOMEM;
goto unlock;
}
memset(&args, 0, sizeof(args));
args.name = name;
err = drmIoctl(drm->fd, DRM_IOCTL_GEM_OPEN, &args);
if (err < 0) {
VDBG_DRM(drm, "failed name 0x%08X err %d strerror(%s)\n",
name, err, strerror(-err));
err = -errno;
free(bo);
bo = NULL;
goto unlock;
}
/* check handle table second, to see if BO is already open */
dup = lookup_bo(drm->handle_table, args.handle);
if (dup) {
VDBG_BO(dup, "success reused name 0x%08X\n", name);
free(bo);
bo = dup;
goto unlock;
}
drmHashInsert(drm->name_table, name, bo);
atomic_set(&bo->ref, 1);
bo->name = name;
bo->handle = args.handle;
bo->flags = flags;
bo->size = args.size;
bo->drm = drm;
DBG_BO(bo, "success\n");
VG_BO_ALLOC(bo);
unlock:
pthread_mutex_unlock(&table_lock);
*bop = bo;
return err;
}
/* get buffer info */
static int get_buffer_info(struct omap_bo *bo)
{
struct drm_omap_gem_info req = {
.handle = bo->handle,
};
int ret = drmCommandWriteRead(bo->dev->fd, DRM_OMAP_GEM_INFO,
&req, sizeof(req));
if (ret) {
return ret;
}
/* really all we need for now is mmap offset */
bo->offset = req.offset;
bo->size = req.size;
return 0;
}
/* import a buffer object from DRI2 name */
drm_public struct omap_bo *
omap_bo_from_name(struct omap_device *dev, uint32_t name)
{
struct omap_bo *bo = NULL;
struct drm_gem_open req = {
.name = name,
};
pthread_mutex_lock(&table_lock);
if (drmIoctl(dev->fd, DRM_IOCTL_GEM_OPEN, &req)) {
goto fail;
}
bo = lookup_bo(dev, req.handle);
if (!bo) {
bo = bo_from_handle(dev, req.handle);
bo->name = name;
}
pthread_mutex_unlock(&table_lock);
return bo;
fail:
pthread_mutex_unlock(&table_lock);
free(bo);
return NULL;
}
/* import a buffer from dmabuf fd, does not take ownership of the
* fd so caller should close() the fd when it is otherwise done
* with it (even if it is still using the 'struct omap_bo *')
*/
drm_public struct omap_bo *
omap_bo_from_dmabuf(struct omap_device *dev, int fd)
{
struct omap_bo *bo = NULL;
struct drm_prime_handle req = {
.fd = fd,
};
int ret;
pthread_mutex_lock(&table_lock);
ret = drmIoctl(dev->fd, DRM_IOCTL_PRIME_FD_TO_HANDLE, &req);
if (ret) {
goto fail;
}
bo = lookup_bo(dev, req.handle);
if (!bo) {
bo = bo_from_handle(dev, req.handle);
}
pthread_mutex_unlock(&table_lock);
return bo;
fail:
pthread_mutex_unlock(&table_lock);
free(bo);
return NULL;
}
/* destroy a buffer object */
drm_public void omap_bo_del(struct omap_bo *bo)
{
if (!bo) {
return;
}
if (!atomic_dec_and_test(&bo->refcnt))
return;
if (bo->map) {
munmap(bo->map, bo->size);
}
if (bo->fd >= 0) {
close(bo->fd);
}
if (bo->handle) {
struct drm_gem_close req = {
.handle = bo->handle,
};
pthread_mutex_lock(&table_lock);
drmHashDelete(bo->dev->handle_table, bo->handle);
drmIoctl(bo->dev->fd, DRM_IOCTL_GEM_CLOSE, &req);
pthread_mutex_unlock(&table_lock);
}
omap_device_del(bo->dev);
free(bo);
}
/* get the global flink/DRI2 buffer name */
drm_public int omap_bo_get_name(struct omap_bo *bo, uint32_t *name)
{
if (!bo->name) {
struct drm_gem_flink req = {
.handle = bo->handle,
};
int ret;
ret = drmIoctl(bo->dev->fd, DRM_IOCTL_GEM_FLINK, &req);
if (ret) {
return ret;
}
bo->name = req.name;
}
*name = bo->name;
return 0;
}
drm_public uint32_t omap_bo_handle(struct omap_bo *bo)
{
return bo->handle;
}
/* caller owns the dmabuf fd that is returned and is responsible
* to close() it when done
*/
drm_public int omap_bo_dmabuf(struct omap_bo *bo)
{
if (bo->fd < 0) {
struct drm_prime_handle req = {
.handle = bo->handle,
.flags = DRM_CLOEXEC,
};
int ret;
ret = drmIoctl(bo->dev->fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &req);
if (ret) {
return ret;
}
bo->fd = req.fd;
}
return dup(bo->fd);
}
drm_public uint32_t omap_bo_size(struct omap_bo *bo)
{
if (!bo->size) {
get_buffer_info(bo);
}
return bo->size;
}
drm_public void *omap_bo_map(struct omap_bo *bo)
{
if (!bo->map) {
if (!bo->offset) {
get_buffer_info(bo);
}
bo->map = mmap(0, bo->size, PROT_READ | PROT_WRITE,
MAP_SHARED, bo->dev->fd, bo->offset);
if (bo->map == MAP_FAILED) {
bo->map = NULL;
}
}
return bo->map;
}
drm_public int omap_bo_cpu_prep(struct omap_bo *bo, enum omap_gem_op op)
{
struct drm_omap_gem_cpu_prep req = {
.handle = bo->handle,
.op = op,
};
return drmCommandWrite(bo->dev->fd,
DRM_OMAP_GEM_CPU_PREP, &req, sizeof(req));
}
drm_public int omap_bo_cpu_fini(struct omap_bo *bo, enum omap_gem_op op)
{
struct drm_omap_gem_cpu_fini req = {
.handle = bo->handle,
.op = op,
.nregions = 0,
};
return drmCommandWrite(bo->dev->fd,
DRM_OMAP_GEM_CPU_FINI, &req, sizeof(req));
}