Merge "coresight: cti: Add snapshot of Coresight CTI driver" (b5c7af4c) · Commits · e / devices / android_kernel_oneplus_sm7250

drivers/hwtracing/coresight/Kconfig

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		@@ -114,4 +114,11 @@ config CORESIGHT_CPU_DEBUG
		properly, please refer Documentation/trace/coresight-cpu-debug.txt
		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.
		endif

drivers/hwtracing/coresight/Makefile

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		@@ -19,3 +19,4 @@ obj-$(CONFIG_CORESIGHT_DYNAMIC_REPLICATOR) += coresight-dynamic-replicator.o
		obj-$(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

drivers/hwtracing/coresight/coresight-cti.c

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+1552 −0

File added.

Preview size limit exceeded, changes collapsed.

include/linux/coresight-cti.h

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		/* SPDX-License-Identifier: GPL-2.0 */
		/*
		* Copyright (c) 2013-2012, 2017, 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