void *rx_buffer;
void *tx_buffer;
bool mem_ops_native;
+ bool msg_direct_req2_supp;
bool bitmap_created;
bool notif_enabled;
unsigned int sched_recv_irq;
return retval;
}
+static int ffa_msg_send_direct_req2(u16 src_id, u16 dst_id, const uuid_t *uuid,
+ struct ffa_send_direct_data2 *data)
+{
+ u32 src_dst_ids = PACK_TARGET_INFO(src_id, dst_id);
+ ffa_value_t ret, args = {
+ .a0 = FFA_MSG_SEND_DIRECT_REQ2, .a1 = src_dst_ids,
+ };
+
+ export_uuid((u8 *)&args.a2, uuid);
+ memcpy((void *)&args + offsetof(ffa_value_t, a4), data, sizeof(*data));
+
+ invoke_ffa_fn(args, &ret);
+
+ while (ret.a0 == FFA_INTERRUPT)
+ invoke_ffa_fn((ffa_value_t){
+ .a0 = FFA_RUN, .a1 = ret.a1,
+ }, &ret);
+
+ if (ret.a0 == FFA_ERROR)
+ return ffa_to_linux_errno((int)ret.a2);
+
+ if (ret.a0 == FFA_MSG_SEND_DIRECT_RESP2) {
+ memcpy(data, &ret.a4, sizeof(*data));
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
static int ffa_mem_first_frag(u32 func_id, phys_addr_t buf, u32 buf_sz,
u32 frag_len, u32 len, u64 *handle)
{
return 0;
}
-static void ffa_set_up_mem_ops_native_flag(void)
+static void ffa_drvinfo_flags_init(void)
{
if (!ffa_features(FFA_FN_NATIVE(MEM_LEND), 0, NULL, NULL) ||
!ffa_features(FFA_FN_NATIVE(MEM_SHARE), 0, NULL, NULL))
drv_info->mem_ops_native = true;
+
+ if (!ffa_features(FFA_MSG_SEND_DIRECT_REQ2, 0, NULL, NULL) ||
+ !ffa_features(FFA_MSG_SEND_DIRECT_RESP2, 0, NULL, NULL))
+ drv_info->msg_direct_req2_supp = true;
}
static u32 ffa_api_version_get(void)
return ffa_msg_send2(drv_info->vm_id, dev->vm_id, buf, sz);
}
+static int ffa_sync_send_receive2(struct ffa_device *dev, const uuid_t *uuid,
+ struct ffa_send_direct_data2 *data)
+{
+ if (!drv_info->msg_direct_req2_supp)
+ return -EOPNOTSUPP;
+
+ return ffa_msg_send_direct_req2(drv_info->vm_id, dev->vm_id,
+ uuid, data);
+}
+
static int ffa_memory_share(struct ffa_mem_ops_args *args)
{
if (drv_info->mem_ops_native)
.mode_32bit_set = ffa_mode_32bit_set,
.sync_send_receive = ffa_sync_send_receive,
.indirect_send = ffa_indirect_msg_send,
+ .sync_send_receive2 = ffa_sync_send_receive2,
};
static const struct ffa_mem_ops ffa_drv_mem_ops = {
mutex_init(&drv_info->rx_lock);
mutex_init(&drv_info->tx_lock);
- ffa_set_up_mem_ops_native_flag();
+ ffa_drvinfo_flags_init();
ffa_notifications_setup();
u32 size;
};
+/* For use with FFA_MSG_SEND_DIRECT_{REQ,RESP}2 which pass data via registers */
+struct ffa_send_direct_data2 {
+ unsigned long data[14]; /* x4-x17 */
+};
+
struct ffa_mem_region_addr_range {
/* The base IPA of the constituent memory region, aligned to 4 kiB */
u64 address;
int (*sync_send_receive)(struct ffa_device *dev,
struct ffa_send_direct_data *data);
int (*indirect_send)(struct ffa_device *dev, void *buf, size_t sz);
+ int (*sync_send_receive2)(struct ffa_device *dev, const uuid_t *uuid,
+ struct ffa_send_direct_data2 *data);
};
struct ffa_mem_ops {