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