ARM: 8478/2: arm/arm64: add arm-smccc

	def_bool y

	depends on QCOM_SCM && ARM64

config HAVE_ARM_SMCCC

	bool

source "drivers/firmware/broadcom/Kconfig"

source "drivers/firmware/google/Kconfig"

source "drivers/firmware/efi/Kconfig"

/*

 * Copyright (c) 2015, Linaro Limited

 *

 * This software is licensed under the terms of the GNU General Public

 * License version 2, as published by the Free Software Foundation, and

 * may be copied, distributed, and modified under those terms.

 *

 * 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_ARM_SMCCC_H

#define __LINUX_ARM_SMCCC_H

#include <linux/linkage.h>

#include <linux/types.h>

/*

 * This file provides common defines for ARM SMC Calling Convention as

 * specified in

 * http://infocenter.arm.com/help/topic/com.arm.doc.den0028a/index.html

 */

#define ARM_SMCCC_STD_CALL		0

#define ARM_SMCCC_FAST_CALL		1

#define ARM_SMCCC_TYPE_SHIFT		31

#define ARM_SMCCC_SMC_32		0

#define ARM_SMCCC_SMC_64		1

#define ARM_SMCCC_CALL_CONV_SHIFT	30

#define ARM_SMCCC_OWNER_MASK		0x3F

#define ARM_SMCCC_OWNER_SHIFT		24

#define ARM_SMCCC_FUNC_MASK		0xFFFF

#define ARM_SMCCC_IS_FAST_CALL(smc_val)	\

	((smc_val) & (ARM_SMCCC_FAST_CALL << ARM_SMCCC_TYPE_SHIFT))

#define ARM_SMCCC_IS_64(smc_val) \

	((smc_val) & (ARM_SMCCC_SMC_64 << ARM_SMCCC_CALL_CONV_SHIFT))

#define ARM_SMCCC_FUNC_NUM(smc_val)	((smc_val) & ARM_SMCCC_FUNC_MASK)

#define ARM_SMCCC_OWNER_NUM(smc_val) \

	(((smc_val) >> ARM_SMCCC_OWNER_SHIFT) & ARM_SMCCC_OWNER_MASK)

#define ARM_SMCCC_CALL_VAL(type, calling_convention, owner, func_num) \

	(((type) << ARM_SMCCC_TYPE_SHIFT) | \

	((calling_convention) << ARM_SMCCC_CALL_CONV_SHIFT) | \

	(((owner) & ARM_SMCCC_OWNER_MASK) << ARM_SMCCC_OWNER_SHIFT) | \

	((func_num) & ARM_SMCCC_FUNC_MASK))

#define ARM_SMCCC_OWNER_ARCH		0

#define ARM_SMCCC_OWNER_CPU		1

#define ARM_SMCCC_OWNER_SIP		2

#define ARM_SMCCC_OWNER_OEM		3

#define ARM_SMCCC_OWNER_STANDARD	4

#define ARM_SMCCC_OWNER_TRUSTED_APP	48

#define ARM_SMCCC_OWNER_TRUSTED_APP_END	49

#define ARM_SMCCC_OWNER_TRUSTED_OS	50

#define ARM_SMCCC_OWNER_TRUSTED_OS_END	63

/**

 * struct arm_smccc_res - Result from SMC/HVC call

 * @a0-a3 result values from registers 0 to 3

 */

struct arm_smccc_res {

	unsigned long a0;

	unsigned long a1;

	unsigned long a2;

	unsigned long a3;

};

/**

 * arm_smccc_smc() - make SMC calls

 * @a0-a7: arguments passed in registers 0 to 7

 * @res: result values from registers 0 to 3

 *

 * This function is used to make SMC calls following SMC Calling Convention.

 * The content of the supplied param are copied to registers 0 to 7 prior

 * to the SMC instruction. The return values are updated with the content

 * from register 0 to 3 on return from the SMC instruction.

 */

asmlinkage void arm_smccc_smc(unsigned long a0, unsigned long a1,

			unsigned long a2, unsigned long a3, unsigned long a4,

			unsigned long a5, unsigned long a6, unsigned long a7,

			struct arm_smccc_res *res);

/**

 * arm_smccc_hvc() - make HVC calls

 * @a0-a7: arguments passed in registers 0 to 7

 * @res: result values from registers 0 to 3

 *

 * This function is used to make HVC calls following SMC Calling

 * Convention.  The content of the supplied param are copied to registers 0

 * to 7 prior to the HVC instruction. The return values are updated with

 * the content from register 0 to 3 on return from the HVC instruction.

 */

asmlinkage void arm_smccc_hvc(unsigned long a0, unsigned long a1,

			unsigned long a2, unsigned long a3, unsigned long a4,

			unsigned long a5, unsigned long a6, unsigned long a7,

			struct arm_smccc_res *res);

#endif /*__LINUX_ARM_SMCCC_H*/