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arm-trusted-firmware / include / std_svc.h
@Jeenu Viswambharan Jeenu Viswambharan on 20 Mar 2014 2 KB Implement ARM Standard Service
/*
 * Copyright (c) 2014, ARM Limited and Contributors. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * Redistributions of source code must retain the above copyright 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.
 *
 * Neither the name of ARM nor the names of its contributors may be used
 * to endorse or promote products derived from this software without specific
 * prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef __STD_SVC_H__
#define __STD_SVC_H__

/* SMC function IDs for Standard Service queries */

#define ARM_STD_SVC_CALL_COUNT		0x8400ff00
#define ARM_STD_SVC_UID			0x8400ff01
/*					0x8400ff02 is reserved */
#define ARM_STD_SVC_VERSION		0x8400ff03

/* ARM Standard Service Calls version numbers */
#define STD_SVC_VERSION_MAJOR		0x0
#define STD_SVC_VERSION_MINOR		0x1

/* The macros below are used to identify PSCI calls from the SMC function ID */
#define PSCI_FID_MASK			0xffe0u
#define PSCI_FID_VALUE			0u
#define is_psci_fid(_fid) \
	(((_fid) & PSCI_FID_MASK) == PSCI_FID_VALUE)

#endif /* __STD_SVC_H__ */