Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit c6996176 authored by Tingwei Zhang's avatar Tingwei Zhang Committed by Gerrit - the friendly Code Review server
Browse files

coresight: Add snapshot of Coresight cti driver 



Add snapshot for coresight cti driver from msm-4.19
commit b92521c1 ("net: qrtr: Add node assignment on new server").
Make necessary change to adopt coresight framework change.

Change-Id: I12fb53e9fcaeb59eb748376ab6d8ed469b921f16
Signed-off-by: default avatarTingwei Zhang <tingwei@codeaurora.org>
parent 22d49bcc

drivers/hwtracing/coresight/Kconfig

+63 −0
Original line number Diff line number Diff line
@@ -119,6 +119,69 @@ config CORESIGHT_CPU_DEBUG 
	  properly, please refer Documentation/trace/coresight-cpu-debug.rst

	  for detailed description and the example for usage.



config CORESIGHT_CTI

	bool "CoreSight Cross Trigger Interface driver"

	help

	  This driver provides support for Cross Trigger Interface that is

	  used to input or output i.e. pass cross trigger events from one

	  hardware component to another. It can also be used to pass

	  software generated events.



config CORESIGHT_CTI_SAVE_DISABLE

	bool "Turn off CTI save and restore"

	depends on CORESIGHT_CTI

	help

	  Turns off CoreSight CTI save and restore support for cpu CTIs. This

	  avoids voting for the clocks during probe as well as the associated

	  save and restore latency at the cost of breaking cpu CTI support on

	  targets where cpu CTIs have to be preserved across power collapse.



	  If unsure, say 'N' here to avoid breaking cpu CTI support.



config CORESIGHT_TPDA

	bool "CoreSight Trace, Profiling & Diagnostics Aggregator driver"

	help

	  This driver provides support for configuring aggregator. This is

	  primarily useful for pulling the data sets from one or more

	  attached monitors and pushing the resultant data out. Multiple

	  monitors are connected on different input ports of TPDA.



config CORESIGHT_TPDM

	bool "CoreSight Trace, Profiling & Diagnostics Monitor driver"

	help

	  This driver provides support for configuring monitor. Monitors are

	  primarily responsible for data set collection and support the

	  ability to collect any permutation of data set types. Monitors are

	  also responsible for interaction with system cross triggering.



config CORESIGHT_TPDM_DEFAULT_ENABLE

	bool "Turn on TPDM tracing by default"

	depends on CORESIGHT_TPDM

	help

	  Turns on CoreSight TPDM tracing for different data set types by

	  default. Otherwise, tracing is disabled by default but can be

	  enabled via sysfs.



	  If unsure, say 'N' here to avoid potential power and performance

	  penalty.



config CORESIGHT_CSR

	bool "CoreSight Slave Register driver"

	help

	  This driver provides support for CoreSight Slave Register block

	  that hosts miscellaneous configuration registers.

	  Those configuration registers can be used to control, various

	  coresight configurations.



config CORESIGHT_HWEVENT

	bool "CoreSight Hardware Event driver"

	depends on CORESIGHT_STM

	select CORESIGHT_CSR

	help

	  This driver provides support for monitoring and tracing CoreSight

	  Hardware Event across STM interface. It configures Coresight

	  Hardware Event mux control registers to select hardware events

	  based on user input.

config CORESIGHT_TPDA

	bool "CoreSight Trace, Profiling & Diagnostics Aggregator driver"

	help

drivers/hwtracing/coresight/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ obj-$(CONFIG_CORESIGHT_SOURCE_ETM4X) += coresight-etm4x.o \ 
obj-$(CONFIG_CORESIGHT_STM) += coresight-stm.o

obj-$(CONFIG_CORESIGHT_CPU_DEBUG) += coresight-cpu-debug.o

obj-$(CONFIG_CORESIGHT_CATU) += coresight-catu.o

obj-$(CONFIG_CORESIGHT_CTI) += coresight-cti.o

obj-$(CONFIG_CORESIGHT_TPDA) += coresight-tpda.o

obj-$(CONFIG_CORESIGHT_TPDM) += coresight-tpdm.o

obj-$(CONFIG_CORESIGHT_HWEVENT) += coresight-hwevent.o

drivers/hwtracing/coresight/coresight-cti.c

0 → 100644
+1566 −0

File added.

Preview size limit exceeded, changes collapsed.

include/linux/coresight-cti.h

0 → 100644
+87 −0
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0-only */

/*

 * Copyright (c) 2013-2014, 2019, The Linux Foundation. All rights reserved.

 */



#ifndef _LINUX_CORESIGHT_CTI_H

#define _LINUX_CORESIGHT_CTI_H



#include <linux/pinctrl/consumer.h>

#include <linux/list.h>



struct coresight_cti_data {

	int nr_ctis;

	const char **names;

};



struct coresight_cti {

	const char *name;

	struct list_head link;

};



#ifdef CONFIG_CORESIGHT_CTI

extern struct coresight_cti *coresight_cti_get(const char *name);

extern void coresight_cti_put(struct coresight_cti *cti);

extern int coresight_cti_map_trigin(

			struct coresight_cti *cti, int trig, int ch);

extern int coresight_cti_map_trigout(

			struct coresight_cti *cti, int trig, int ch);

extern void coresight_cti_unmap_trigin(

			struct coresight_cti *cti, int trig, int ch);

extern void coresight_cti_unmap_trigout(

			struct coresight_cti *cti, int trig, int ch);

extern void coresight_cti_reset(struct coresight_cti *cti);

extern int coresight_cti_set_trig(struct coresight_cti *cti, int ch);

extern void coresight_cti_clear_trig(struct coresight_cti *cti, int ch);

extern int coresight_cti_pulse_trig(struct coresight_cti *cti, int ch);

extern int coresight_cti_enable_gate(struct coresight_cti *cti, int ch);

extern void coresight_cti_disable_gate(struct coresight_cti *cti, int ch);

extern void coresight_cti_ctx_save(void);

extern void coresight_cti_ctx_restore(void);

extern int coresight_cti_ack_trig(struct coresight_cti *cti, int trig);

#else

static inline struct coresight_cti *coresight_cti_get(const char *name)

{

	return NULL;

}

static inline void coresight_cti_put(struct coresight_cti *cti) {}

static inline int coresight_cti_map_trigin(

			struct coresight_cti *cti, int trig, int ch)

{

	return -ENODEV;

}

static inline int coresight_cti_map_trigout(

			struct coresight_cti *cti, int trig, int ch)

{

	return -ENODEV;

}

static inline void coresight_cti_unmap_trigin(

			struct coresight_cti *cti, int trig, int ch) {}

static inline void coresight_cti_unmap_trigout(

			struct coresight_cti *cti, int trig, int ch) {}

static inline void coresight_cti_reset(struct coresight_cti *cti) {}

static inline int coresight_cti_set_trig(struct coresight_cti *cti, int ch)

{

	return -ENODEV;

}

static inline void coresight_cti_clear_trig(struct coresight_cti *cti, int ch)

{}

static inline int coresight_cti_pulse_trig(struct coresight_cti *cti, int ch)

{

	return -ENODEV;

}

static inline int coresight_cti_enable_gate(struct coresight_cti *cti, int ch)

{

	return -ENODEV;

}

static inline void coresight_cti_disable_gate(struct coresight_cti *cti, int ch)

{}

static inline void coresight_cti_ctx_save(void){}

static inline void coresight_cti_ctx_restore(void){}

static inline int coresight_cti_ack_trig(struct coresight_cti *cti, int trig)

{

	return -ENODEV;

}

#endif



#endif