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authorPeter Ujfalusi <peter.ujfalusi@ti.com>2020-10-25 22:10:06 +0300
committerSantosh Shilimkar <santosh.shilimkar@oracle.com>2020-11-02 06:38:02 +0300
commit3c2017536f3a122bf246cc87f9327e9ec138db92 (patch)
treed4a6c1f3f55f59192e9c9b76f1ff894a3a8368a4 /drivers/firmware/ti_sci.c
parent4d8ddf673a420aa25668eceeb4fbf33e2521fdf2 (diff)
downloadlinux-3c2017536f3a122bf246cc87f9327e9ec138db92.tar.xz
firmware: ti_sci: rm: Add new ops for ring configuration
The sysfw ring configuration message has been extended to include virtid and asel value for the ring. Add the ASEL_VALID to TI_SCI_MSG_VALUE_RM_ALL_NO_ORDER as it is required for DMA rings. Instead of extending the current .config() ops - which would need same patch change in the ringacc driver - add ti_sci_msg_rm_ring_cfg struct and a new ops using it to configure the ring. This will allow easy update path in case new members are added for the ring configuration. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Diffstat (limited to 'drivers/firmware/ti_sci.c')
-rw-r--r--drivers/firmware/ti_sci.c63
1 files changed, 63 insertions, 0 deletions
diff --git a/drivers/firmware/ti_sci.c b/drivers/firmware/ti_sci.c
index 0b801e67e672..a4d2b318795c 100644
--- a/drivers/firmware/ti_sci.c
+++ b/drivers/firmware/ti_sci.c
@@ -2120,6 +2120,68 @@ fail:
}
/**
+ * ti_sci_cmd_rm_ring_cfg() - Configure a NAVSS ring
+ * @handle: Pointer to TI SCI handle.
+ * @params: Pointer to ti_sci_msg_rm_ring_cfg ring config structure
+ *
+ * Return: 0 if all went well, else returns appropriate error value.
+ *
+ * See @ti_sci_msg_rm_ring_cfg and @ti_sci_msg_rm_ring_cfg_req for
+ * more info.
+ */
+static int ti_sci_cmd_rm_ring_cfg(const struct ti_sci_handle *handle,
+ const struct ti_sci_msg_rm_ring_cfg *params)
+{
+ struct ti_sci_msg_rm_ring_cfg_req *req;
+ struct ti_sci_msg_hdr *resp;
+ struct ti_sci_xfer *xfer;
+ struct ti_sci_info *info;
+ struct device *dev;
+ int ret = 0;
+
+ if (IS_ERR_OR_NULL(handle))
+ return -EINVAL;
+
+ info = handle_to_ti_sci_info(handle);
+ dev = info->dev;
+
+ xfer = ti_sci_get_one_xfer(info, TI_SCI_MSG_RM_RING_CFG,
+ TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
+ sizeof(*req), sizeof(*resp));
+ if (IS_ERR(xfer)) {
+ ret = PTR_ERR(xfer);
+ dev_err(dev, "RM_RA:Message config failed(%d)\n", ret);
+ return ret;
+ }
+ req = (struct ti_sci_msg_rm_ring_cfg_req *)xfer->xfer_buf;
+ req->valid_params = params->valid_params;
+ req->nav_id = params->nav_id;
+ req->index = params->index;
+ req->addr_lo = params->addr_lo;
+ req->addr_hi = params->addr_hi;
+ req->count = params->count;
+ req->mode = params->mode;
+ req->size = params->size;
+ req->order_id = params->order_id;
+ req->virtid = params->virtid;
+ req->asel = params->asel;
+
+ ret = ti_sci_do_xfer(info, xfer);
+ if (ret) {
+ dev_err(dev, "RM_RA:Mbox config send fail %d\n", ret);
+ goto fail;
+ }
+
+ resp = (struct ti_sci_msg_hdr *)xfer->xfer_buf;
+ ret = ti_sci_is_response_ack(resp) ? 0 : -EINVAL;
+
+fail:
+ ti_sci_put_one_xfer(&info->minfo, xfer);
+ dev_dbg(dev, "RM_RA:config ring %u ret:%d\n", params->index, ret);
+ return ret;
+}
+
+/**
* ti_sci_cmd_rm_psil_pair() - Pair PSI-L source to destination thread
* @handle: Pointer to TI SCI handle.
* @nav_id: Device ID of Navigator Subsystem which should be used for
@@ -2847,6 +2909,7 @@ static void ti_sci_setup_ops(struct ti_sci_info *info)
iops->free_event_map = ti_sci_cmd_free_event_map;
rops->config = ti_sci_cmd_ring_config;
+ rops->set_cfg = ti_sci_cmd_rm_ring_cfg;
psilops->pair = ti_sci_cmd_rm_psil_pair;
psilops->unpair = ti_sci_cmd_rm_psil_unpair;