Add a few call sites where, if SCMI Raw mode access had been enabled in
Kconfig, the needed SCMI Raw initialization and hooks are called.
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
---
v4 --> v5
- rework to use multiple SCMI instances
v3 --> v4
- add call hooks to support polled transports
v1 --> v2
- fixes need to use multiple cinfo if available
---
drivers/firmware/arm_scmi/driver.c | 45 ++++++++++++++++++++++++++++++
1 file changed, 45 insertions(+)
@@ -37,6 +37,8 @@
#include "common.h"
#include "notify.h"
+#include "raw_mode.h"
+
#define CREATE_TRACE_POINTS
#include <trace/events/scmi.h>
@@ -136,6 +138,7 @@ struct scmi_protocol_instance {
* @notify_priv: Pointer to private data structure specific to notifications.
* @node: List head
* @users: Number of users of this instance
+ * @raw: An opaque reference handle used by SCMI Raw mode.
*/
struct scmi_info {
struct device *dev;
@@ -155,6 +158,7 @@ struct scmi_info {
void *notify_priv;
struct list_head node;
int users;
+ void *raw;
};
static struct dentry *scmi_raw_top_dentry;
@@ -772,6 +776,11 @@ static void scmi_handle_notification(struct scmi_chan_info *cinfo,
xfer->hdr.protocol_id, xfer->hdr.seq,
MSG_TYPE_NOTIFICATION);
+ if (IS_ENABLED(CONFIG_ARM_SCMI_RAW_MODE_SUPPORT)) {
+ xfer->hdr.seq = MSG_XTRACT_TOKEN(msg_hdr);
+ scmi_raw_message_report(info->raw, xfer, SCMI_RAW_NOTIF_QUEUE);
+ }
+
__scmi_xfer_put(minfo, xfer);
scmi_clear_channel(info, cinfo);
@@ -785,6 +794,9 @@ static void scmi_handle_response(struct scmi_chan_info *cinfo,
xfer = scmi_xfer_command_acquire(cinfo, msg_hdr);
if (IS_ERR(xfer)) {
+ if (IS_ENABLED(CONFIG_ARM_SCMI_RAW_MODE_SUPPORT))
+ scmi_raw_error_report(info->raw, cinfo, msg_hdr, priv);
+
if (MSG_XTRACT_TYPE(msg_hdr) == MSG_TYPE_DELAYED_RESP)
scmi_clear_channel(info, cinfo);
return;
@@ -817,6 +829,16 @@ static void scmi_handle_response(struct scmi_chan_info *cinfo,
complete(&xfer->done);
}
+ if (IS_ENABLED(CONFIG_ARM_SCMI_RAW_MODE_SUPPORT)) {
+ /*
+ * When in polling mode avoid to queue the Raw xfer on the IRQ
+ * RX path since it will be already queued at the end of the TX
+ * poll loop.
+ */
+ if (!xfer->hdr.poll_completion)
+ scmi_raw_message_report(info->raw, xfer, SCMI_RAW_REPLY_QUEUE);
+ }
+
scmi_xfer_command_release(info, xfer);
}
@@ -927,6 +949,14 @@ static int scmi_wait_for_reply(struct device *dev, const struct scmi_desc *desc,
!xfer->is_raw ? "RESP" : "resp",
xfer->hdr.seq, xfer->hdr.status,
xfer->rx.buf, xfer->rx.len);
+
+ if (IS_ENABLED(CONFIG_ARM_SCMI_RAW_MODE_SUPPORT)) {
+ struct scmi_info *info =
+ handle_to_scmi_info(cinfo->handle);
+
+ scmi_raw_message_report(info->raw, xfer,
+ SCMI_RAW_REPLY_QUEUE);
+ }
}
} else {
/* And we wait for the response. */
@@ -2613,6 +2643,18 @@ static int scmi_probe(struct platform_device *pdev)
if (ret)
goto clear_txrx_setup;
+ if (IS_ENABLED(CONFIG_ARM_SCMI_RAW_MODE_SUPPORT)) {
+ info->raw = scmi_raw_mode_init(handle, scmi_raw_top_dentry,
+ info->desc,
+ info->tx_minfo.max_msg);
+ if (IS_ERR(info->raw)) {
+ dev_err(dev, "Failed to initialize SCMI RAW Mode !\n");
+ return PTR_ERR(info->raw);
+ }
+
+ return 0;
+ }
+
if (scmi_notification_init(handle))
dev_err(dev, "SCMI Notifications NOT available.\n");
@@ -2687,6 +2729,9 @@ static int scmi_remove(struct platform_device *pdev)
struct scmi_info *info = platform_get_drvdata(pdev);
struct device_node *child;
+ if (IS_ENABLED(CONFIG_ARM_SCMI_RAW_MODE_SUPPORT))
+ scmi_raw_mode_cleanup(info->raw);
+
mutex_lock(&scmi_list_mutex);
if (info->users)
dev_warn(&pdev->dev,