diff options
author | Peter Ujfalusi <peter.ujfalusi@ti.com> | 2020-10-25 12:10:06 -0700 |
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committer | Santosh Shilimkar <santosh.shilimkar@oracle.com> | 2020-11-01 19:38:02 -0800 |
commit | 3c2017536f3a122bf246cc87f9327e9ec138db92 (patch) | |
tree | d4a6c1f3f55f59192e9c9b76f1ff894a3a8368a4 /drivers/firmware/ti_sci.c | |
parent | 4d8ddf673a420aa25668eceeb4fbf33e2521fdf2 (diff) | |
download | linux-3c2017536f3a122bf246cc87f9327e9ec138db92.tar.bz2 |
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.c | 63 |
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; |