[PATCH v2 01/11] firmware: ti_sci: rm: Add support for tx_tdtype parameter for tx channel
From: Peter Ujfalusi
Date: Thu Oct 08 2020 - 07:52:18 EST
The system controller's resource manager have support for configuring the
TDTYPE of TCHAN_CFG register on j721e.
With this parameter the teardown completion can be controlled:
TDTYPE == 0: Return without waiting for peer to complete the teardown
TDTYPE == 1: Wait for peer to complete the teardown
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxx>
Reviewed-by: Tero Kristo <t-kristo@xxxxxx>
Tested-by: Keerthy <j-keerthy@xxxxxx>
Reviewed-by: Grygorii Strashko <grygorii.strashko@xxxxxx>
---
drivers/firmware/ti_sci.c | 1 +
drivers/firmware/ti_sci.h | 7 +++++++
include/linux/soc/ti/ti_sci_protocol.h | 2 ++
3 files changed, 10 insertions(+)
diff --git a/drivers/firmware/ti_sci.c b/drivers/firmware/ti_sci.c
index 896f53ec7857..65a8c2e82093 100644
--- a/drivers/firmware/ti_sci.c
+++ b/drivers/firmware/ti_sci.c
@@ -2362,6 +2362,7 @@ static int ti_sci_cmd_rm_udmap_tx_ch_cfg(const struct ti_sci_handle *handle,
req->fdepth = params->fdepth;
req->tx_sched_priority = params->tx_sched_priority;
req->tx_burst_size = params->tx_burst_size;
+ req->tx_tdtype = params->tx_tdtype;
ret = ti_sci_do_xfer(info, xfer);
if (ret) {
diff --git a/drivers/firmware/ti_sci.h b/drivers/firmware/ti_sci.h
index 57cd04062994..dca19ca5fc49 100644
--- a/drivers/firmware/ti_sci.h
+++ b/drivers/firmware/ti_sci.h
@@ -910,6 +910,7 @@ struct rm_ti_sci_msg_udmap_rx_flow_opt_cfg {
* 12 - Valid bit for @ref ti_sci_msg_rm_udmap_tx_ch_cfg::tx_credit_count
* 13 - Valid bit for @ref ti_sci_msg_rm_udmap_tx_ch_cfg::fdepth
* 14 - Valid bit for @ref ti_sci_msg_rm_udmap_tx_ch_cfg::tx_burst_size
+ * 15 - Valid bit for @ref ti_sci_msg_rm_udmap_tx_ch_cfg::tx_tdtype
*
* @nav_id: SoC device ID of Navigator Subsystem where tx channel is located
*
@@ -973,6 +974,11 @@ struct rm_ti_sci_msg_udmap_rx_flow_opt_cfg {
*
* @tx_burst_size: UDMAP transmit channel burst size configuration to be
* programmed into the tx_burst_size field of the TCHAN_TCFG register.
+ *
+ * @tx_tdtype: UDMAP transmit channel teardown type configuration to be
+ * programmed into the tdtype field of the TCHAN_TCFG register:
+ * 0 - Return immediately
+ * 1 - Wait for completion message from remote peer
*/
struct ti_sci_msg_rm_udmap_tx_ch_cfg_req {
struct ti_sci_msg_hdr hdr;
@@ -994,6 +1000,7 @@ struct ti_sci_msg_rm_udmap_tx_ch_cfg_req {
u16 fdepth;
u8 tx_sched_priority;
u8 tx_burst_size;
+ u8 tx_tdtype;
} __packed;
/**
diff --git a/include/linux/soc/ti/ti_sci_protocol.h b/include/linux/soc/ti/ti_sci_protocol.h
index cf27b080e148..d254d99fd45b 100644
--- a/include/linux/soc/ti/ti_sci_protocol.h
+++ b/include/linux/soc/ti/ti_sci_protocol.h
@@ -345,6 +345,7 @@ struct ti_sci_msg_rm_udmap_tx_ch_cfg {
#define TI_SCI_MSG_VALUE_RM_UDMAP_CH_TX_SUPR_TDPKT_VALID BIT(11)
#define TI_SCI_MSG_VALUE_RM_UDMAP_CH_TX_CREDIT_COUNT_VALID BIT(12)
#define TI_SCI_MSG_VALUE_RM_UDMAP_CH_TX_FDEPTH_VALID BIT(13)
+#define TI_SCI_MSG_VALUE_RM_UDMAP_CH_TX_TDTYPE_VALID BIT(15)
u16 nav_id;
u16 index;
u8 tx_pause_on_err;
@@ -362,6 +363,7 @@ struct ti_sci_msg_rm_udmap_tx_ch_cfg {
u16 fdepth;
u8 tx_sched_priority;
u8 tx_burst_size;
+ u8 tx_tdtype;
};
/**
--
Peter
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki