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Commit 47b708a4 authored by Lina Iyer's avatar Lina Iyer
Browse files

drivers: mailbox: qti-tcs: add IPC logging support 



Abstract logging for FTrace to generic macros and add IPC logging for
the same FTrace strings.

Change-Id: Iab30e87b3bee594874fe6c5b06371a9ee4016f34
Signed-off-by: default avatarLina Iyer <ilina@codeaurora.org>
parent 3faf7157

drivers/mailbox/qti-tcs.c

+37 −4
Original line number Diff line number Diff line
@@ -17,6 +17,7 @@ 
#include <linux/bitmap.h>

#include <linux/delay.h>

#include <linux/interrupt.h>

#include <linux/ipc_logging.h>

#include <linux/jiffies.h>

#include <linux/kernel.h>

#include <linux/list.h>
@@ -40,6 +41,8 @@ 
#define CREATE_TRACE_POINTS

#include <trace/events/rpmh.h>



#define TCS_DRV_IPC_LOG_SIZE		2



#define MAX_CMDS_PER_TCS		16

#define MAX_TCS_PER_TYPE		3

#define MAX_TCS_SLOTS			(MAX_CMDS_PER_TCS * MAX_TCS_PER_TYPE)
@@ -140,8 +143,35 @@ struct tcs_drv { 
	u64 tcs_last_recv_ts[MAX_POOL_SIZE];

	atomic_t tcs_send_count[MAX_POOL_SIZE];

	atomic_t tcs_irq_count[MAX_POOL_SIZE];

	void *ipc_log_ctx;

};



/* Log to IPC and Ftrace */

#define log_send_msg(drv, m, n, i, a, d, c, t) do {			\

	trace_rpmh_send_msg(drv->name, m, n, i, a, d, c, t);		\

	ipc_log_string(drv->ipc_log_ctx,				\

		"send msg: m=%d n=%d msgid=0x%x addr=0x%x data=0x%x cmpl=%d trigger=%d", \

		m, n, i, a, d, c, t);					\

	} while (0)



#define log_rpmh_notify_irq(drv, m, a, e) do {				\

	trace_rpmh_notify_irq(drv->name, m, a, e);			\

	ipc_log_string(drv->ipc_log_ctx,				\

		"irq response: m=%d addr=0x%x err=%d", m, a, e);	\

	} while (0)



#define log_rpmh_control_msg(drv, d) do {				\

	trace_rpmh_control_msg(drv->name, d);				\

	ipc_log_string(drv->ipc_log_ctx, "ctrlr msg: data=0x%x", d);	\

	} while (0)



#define log_rpmh_notify(drv, m, a, e) do {				\

	trace_rpmh_notify(drv->name, m, a, e);				\

	ipc_log_string(drv->ipc_log_ctx,				\

		"tx done: m=%d addr=0x%x err=%d", m, a, e);		\

	} while (0)





static int tcs_response_pool_init(struct tcs_drv *drv)

{

	struct tcs_response_pool *pool;
@@ -437,7 +467,7 @@ static irqreturn_t tcs_irq_handler(int irq, void *p) 
			mbox_chan_received_data(resp->chan, resp->msg);

		}



		trace_rpmh_notify_irq(drv->name, m, resp->msg->payload[0].addr,

		log_rpmh_notify_irq(drv, m, resp->msg->payload[0].addr,

						resp->err);



		/* Clear the AMC mode for non-ACTIVE TCSes */
@@ -480,7 +510,7 @@ static inline void mbox_notify_tx_done(struct mbox_chan *chan, 
{

	struct tcs_drv *drv = container_of(chan->mbox, struct tcs_drv, mbox);



	trace_rpmh_notify(drv->name, m, msg->payload[0].addr, err);

	log_rpmh_notify(drv, m, msg->payload[0].addr, err);

	mbox_chan_txdone(chan, err);

}
@@ -546,7 +576,7 @@ static void __tcs_buffer_write(struct tcs_drv *drv, int d, int m, int n, 
		write_tcs_reg(base, TCS_DRV_CMD_MSGID, m, n + i, msgid);

		write_tcs_reg(base, TCS_DRV_CMD_ADDR, m, n + i, cmd->addr);

		write_tcs_reg(base, TCS_DRV_CMD_DATA, m, n + i, cmd->data);

		trace_rpmh_send_msg(drv->name, m, n + i, msgid, cmd->addr,

		log_send_msg(drv, m, n + i, msgid, cmd->addr,

					cmd->data, cmd->complete, trigger);

	}
@@ -932,7 +962,7 @@ static void __tcs_write_hidden(struct tcs_drv *drv, int d, 
	for (i = 0; i < msg->num_payload; i++) {

		/* Only data is write capable */

		writel_relaxed(cpu_to_le32(msg->payload[i].data), addr);

		trace_rpmh_control_msg(drv->name, msg->payload[i].data);

		log_rpmh_control_msg(drv, msg->payload[i].data);

		addr += TCS_HIDDEN_CMD_SHIFT;

	}

}
@@ -1200,6 +1230,9 @@ static int tcs_drv_probe(struct platform_device *pdev) 
	for (i = 0; i < ARRAY_SIZE(drv->tcs_in_use); i++)

		atomic_set(&drv->tcs_in_use[i], 0);



	drv->ipc_log_ctx = ipc_log_context_create(TCS_DRV_IPC_LOG_SIZE,

						drv->name, 0);



	ret = mbox_controller_register(&drv->mbox);

	if (ret)

		return ret;