struct ocmem_buf *ocmem_allocate_nb(int client_id, unsigned long size)
{
bool can_block = true;
bool can_wait = false;
if (!check_id(client_id)) {
pr_err("ocmem: Invalid client id: %d\n", client_id);
return NULL;
}
/* Asynchronous API requires notifier registration */
if (!check_notifier(client_id)) {
pr_err("ocmem: No notifier registered for client %d\n",
client_id);
return NULL;
}
if (size < OCMEM_MIN_ALLOC) {
pr_err("ocmem: requested size %lx must be at least %x\n",
size, OCMEM_MIN_ALLOC);
return NULL;
}
if (!IS_ALIGNED(size, OCMEM_MIN_ALIGN)) {
pr_err("ocmem: Invalid alignment, args must be %x aligned\n",
OCMEM_MIN_ALIGN);
return NULL;
}
return __ocmem_allocate_range(client_id, 0, size, size,
can_block, can_wait);
}
int ocmem_map(int client_id, struct ocmem_buf *buffer,
struct ocmem_map_list *list)
{
int ret = 0;
struct ocmem_handle *handle = NULL;
if (!check_id(client_id)) {
pr_err("ocmem: Invalid client id: %d\n", client_id);
return -EINVAL;
}
if (!zone_active(client_id)) {
pr_err("ocmem: Client id: %s (id: %d) not allowed to use OCMEM\n",
get_name(client_id), client_id);
return -EINVAL;
}
/* Asynchronous API requires notifier registration */
if (!check_notifier(client_id)) {
pr_err("ocmem: No notifier registered for client %d\n",
client_id);
return -EINVAL;
}
if (!buffer) {
pr_err("ocmem: Invalid buffer\n");
return -EINVAL;
}
if (pre_validate_chunk_list(list) != 0)
return -EINVAL;
handle = buffer_to_handle(buffer);
if (!handle)
return -EINVAL;
mutex_lock(&handle->handle_mutex);
ret = process_xfer(client_id, handle, list, TO_OCMEM);
mutex_unlock(&handle->handle_mutex);
return ret;
}
struct ocmem_buf *ocmem_allocate_range(int client_id, unsigned long min,
unsigned long goal, unsigned long step)
{
bool can_block = true;
bool can_wait = false;
if (!check_id(client_id)) {
pr_err("ocmem: Invalid client id: %d\n", client_id);
return NULL;
}
if (!zone_active(client_id)) {
pr_err("ocmem: Client %s (id: %d) not allowed to use OCMEM\n",
get_name(client_id), client_id);
return NULL;
}
/* Asynchronous API requires notifier registration */
if (!check_notifier(client_id)) {
pr_err("ocmem: No notifier registered for client %d\n",
client_id);
return NULL;
}
if (min < OCMEM_MIN_ALLOC) {
pr_err("ocmem: requested min size %lx must be at least %x\n",
min, OCMEM_MIN_ALLOC);
return NULL;
}
if (!IS_ALIGNED(min | goal | step, OCMEM_MIN_ALIGN)) {
pr_err("ocmem: Invalid alignment, args must be %x aligned\n",
OCMEM_MIN_ALIGN);
return NULL;
}
return __ocmem_allocate_range(client_id, min, goal,
step, can_block, can_wait);
}
