Merge "coresight: cti: Add snapshot of CTI driver" into msm-4.8 (6ecf8e25) · Commits · e / devices / android_kernel_fairphone_FP3

drivers/hwtracing/coresight/Kconfig

+7 −0

Original line number	Diff line number	Diff line
		@@ -123,4 +123,11 @@ config CORESIGHT_TPDM_DEFAULT_ENABLE
		If unsure, say 'N' here to avoid potential power and performance
		penalty.

		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

+1 −0

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		@@ -19,3 +19,4 @@ obj-$(CONFIG_CORESIGHT_STM) += coresight-stm.o
		obj-$(CONFIG_CORESIGHT_OST) += coresight-ost.o
		obj-$(CONFIG_CORESIGHT_TPDA) += coresight-tpda.o
		obj-$(CONFIG_CORESIGHT_TPDM) += coresight-tpdm.o
		obj-$(CONFIG_CORESIGHT_CTI) += coresight-cti.o

drivers/hwtracing/coresight/coresight-cti.c

0 → 100644

+1566 −0

File added.

Preview size limit exceeded, changes collapsed.

drivers/hwtracing/coresight/coresight-priv.h

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		@@ -33,6 +33,7 @@
		#define CORESIGHT_DEVTYPE 0xfcc

		#define TIMEOUT_US 100
		#define BM(lsb, msb) ((BIT(msb) - BIT(lsb)) + BIT(msb))
		#define BMVAL(val, lsb, msb) ((val & GENMASK(msb, lsb)) >> lsb)
		#define BVAL(val, n) ((val & BIT(n)) >> n)

include/linux/coresight-cti.h

0 → 100644

+93 −0

Original line number	Diff line number	Diff line
		/* Copyright (c) 2013-2014, 2016 The Linux Foundation. All rights reserved.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 and
		* only version 2 as published by the Free Software Foundation.
		*
		* This program is distributed in the hope that it will be useful,
		* but WITHOUT ANY WARRANTY; without even the implied warranty of
		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		* GNU General Public License for more details.
		*/

		#ifndef _LINUX_CORESIGHT_CTI_H
		#define _LINUX_CORESIGHT_CTI_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