platform/msm7x30/include/platform/remote_spinlock.h

/* Copyright (c) 2012, The Linux Foundation. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
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 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 *       copyright notice, this list of conditions and the following
 *       disclaimer in the documentation and/or other materials provided
 *       with the distribution.
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 *       contributors may be used to endorse or promote products derived
 *       from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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 */

#include <sys/types.h>

#define RLOCK_CHUNK_NAME_LENGTH 10
#define RLOCK_CHUNK_NAME        "PMIC_SSBI"
#define DEK_LOCK_REQUEST        1
#define DEK_LOCK_YIELD          (!DEK_LOCK_REQUEST)
#define DEK_YIELD_TURN_SELF     0

struct rlock_chunk_header {
	uint32_t size;
	char name[RLOCK_CHUNK_NAME_LENGTH];
	uint32_t lock;
	uint32_t reserved;
	uint32_t type;
	uint32_t version;
};
struct dek_spinlock {
	volatile uint8_t self_lock;
	volatile uint8_t other_lock;
	volatile uint8_t next_yield;
	uint8_t pad;
};

typedef union {
	volatile uint32_t lock;
	struct dek_spinlock dek;
} raw_remote_spinlock_t;

typedef raw_remote_spinlock_t *remote_spinlock_t;

remote_spinlock_t rlock;