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From: Peter Ujfalusi <peter.ujfalusi@ti.com>
To: <vkoul@kernel.org>, <robh+dt@kernel.org>, <nm@ti.com>,
	<ssantosh@kernel.org>
Cc: <dan.j.williams@intel.com>, <dmaengine@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<grygorii.strashko@ti.com>, <lokeshvutla@ti.com>,
	<t-kristo@ti.com>, <tony@atomide.com>, <j-keerthy@ti.com>
Subject: [PATCH v6 16/17] firmware: ti_sci: rm: Add support for tx_tdtype parameter for tx channel
Date: Thu, 28 Nov 2019 12:59:44 +0200
Message-ID: <20191128105945.13071-17-peter.ujfalusi@ti.com> (raw)
In-Reply-To: <20191128105945.13071-1-peter.ujfalusi@ti.com>

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@ti.com>
Reviewed-by: Tero Kristo <t-kristo@ti.com>
---
 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 4126be9e3216..f13e4a96f3b7 100644
--- a/drivers/firmware/ti_sci.c
+++ b/drivers/firmware/ti_sci.c
@@ -2412,6 +2412,7 @@ 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 f0d068c03944..255327171dae 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 9531ec823298..f3aed0b91564 100644
--- a/include/linux/soc/ti/ti_sci_protocol.h
+++ b/include/linux/soc/ti/ti_sci_protocol.h
@@ -342,6 +342,7 @@ 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;
@@ -359,6 +360,7 @@ 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


  parent reply index

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-28 10:59 [PATCH v6 00/17] dmaengine/soc: Add Texas Instruments UDMA support Peter Ujfalusi
2019-11-28 10:59 ` [PATCH v6 01/17] bindings: soc: ti: add documentation for k3 ringacc Peter Ujfalusi
2019-11-28 10:59 ` [PATCH v6 02/17] soc: ti: k3: add navss ringacc driver Peter Ujfalusi
2019-11-28 10:59 ` [PATCH v6 03/17] dmaengine: doc: Add sections for per descriptor metadata support Peter Ujfalusi
2019-11-28 10:59 ` [PATCH v6 04/17] dmaengine: Add metadata_ops for dma_async_tx_descriptor Peter Ujfalusi
2019-11-28 10:59 ` [PATCH v6 05/17] dmaengine: Add support for reporting DMA cached data amount Peter Ujfalusi
2019-11-28 10:59 ` [PATCH v6 06/17] dmaengine: ti: Add cppi5 header for K3 NAVSS/UDMA Peter Ujfalusi
2019-11-28 10:59 ` [PATCH v6 07/17] dmaengine: ti: k3 PSI-L remote endpoint configuration Peter Ujfalusi
2019-11-28 10:59 ` [PATCH v6 08/17] dt-bindings: dma: ti: Add document for K3 UDMA Peter Ujfalusi
2019-11-28 10:59 ` [PATCH v6 09/17] dmaengine: ti: New driver for K3 UDMA - split#1: defines, structs, io func Peter Ujfalusi
2019-11-28 10:59 ` [PATCH v6 10/17] dmaengine: ti: New driver for K3 UDMA - split#2: probe/remove, xlate and filter_fn Peter Ujfalusi
2019-11-28 10:59 ` [PATCH v6 11/17] dmaengine: ti: New driver for K3 UDMA - split#3: alloc/free chan_resources Peter Ujfalusi
2019-11-28 10:59 ` [PATCH v6 12/17] dmaengine: ti: New driver for K3 UDMA - split#4: dma_device callbacks 1 Peter Ujfalusi
2019-11-28 10:59 ` [PATCH v6 13/17] dmaengine: ti: New driver for K3 UDMA - split#5: dma_device callbacks 2 Peter Ujfalusi
2019-11-28 10:59 ` [PATCH v6 14/17] dmaengine: ti: New driver for K3 UDMA - split#6: Kconfig and Makefile Peter Ujfalusi
2019-11-28 10:59 ` [PATCH v6 15/17] dmaengine: ti: k3-udma: Add glue layer for non DMAengine users Peter Ujfalusi
2019-11-28 10:59 ` Peter Ujfalusi [this message]
2019-11-28 10:59 ` [PATCH v6 17/17] dmaengine: ti: k3-udma: Wait for peer teardown completion if supported Peter Ujfalusi

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