35 void shmem_tx_prepare(struct scmi_shared_mem __iomem *shmem,  in shmem_tx_prepare()  argument
55 	spin_until_cond((ioread32(&shmem->channel_status) &  in shmem_tx_prepare()
58 	if (!(ioread32(&shmem->channel_status) &  in shmem_tx_prepare()
67 	iowrite32(0x0, &shmem->channel_status);  in shmem_tx_prepare()
69 		  &shmem->flags);  in shmem_tx_prepare()
70 	iowrite32(sizeof(shmem->msg_header) + xfer->tx.len, &shmem->length);  in shmem_tx_prepare()
71 	iowrite32(pack_scmi_header(&xfer->hdr), &shmem->msg_header);  in shmem_tx_prepare()
73 		memcpy_toio(shmem->msg_payload, xfer->tx.buf, xfer->tx.len);  in shmem_tx_prepare()
76 u32 shmem_read_header(struct scmi_shared_mem __iomem *shmem)  in shmem_read_header()  argument
78 	return ioread32(&shmem->msg_header);  in shmem_read_header()
81 void shmem_fetch_response(struct scmi_shared_mem __iomem *shmem,  in shmem_fetch_response()  argument
84 	size_t len = ioread32(&shmem->length);  in shmem_fetch_response()
86 	xfer->hdr.status = ioread32(shmem->msg_payload);  in shmem_fetch_response()
87 	/* Skip the length of header and status in shmem area i.e 8 bytes */  in shmem_fetch_response()
91 	memcpy_fromio(xfer->rx.buf, shmem->msg_payload + 4, xfer->rx.len);  in shmem_fetch_response()
94 void shmem_fetch_notification(struct scmi_shared_mem __iomem *shmem,  in shmem_fetch_notification()  argument
97 	size_t len = ioread32(&shmem->length);  in shmem_fetch_notification()
99 	/* Skip only the length of header in shmem area i.e 4 bytes */  in shmem_fetch_notification()
103 	memcpy_fromio(xfer->rx.buf, shmem->msg_payload, xfer->rx.len);  in shmem_fetch_notification()
106 void shmem_clear_channel(struct scmi_shared_mem __iomem *shmem)  in shmem_clear_channel()  argument
108 	iowrite32(SCMI_SHMEM_CHAN_STAT_CHANNEL_FREE, &shmem->channel_status);  in shmem_clear_channel()
111 bool shmem_poll_done(struct scmi_shared_mem __iomem *shmem,  in shmem_poll_done()  argument
116 	xfer_id = MSG_XTRACT_TOKEN(ioread32(&shmem->msg_header));  in shmem_poll_done()
121 	return ioread32(&shmem->channel_status) &  in shmem_poll_done()
126 bool shmem_channel_free(struct scmi_shared_mem __iomem *shmem)  in shmem_channel_free()  argument
128 	return (ioread32(&shmem->channel_status) &  in shmem_channel_free()