rt-thread-official/libcpu/aarch64/common/smccc.h

34 lines
1.1 KiB
C
Raw Normal View History

2022-01-07 13:49:06 +08:00
/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2021-09-09 GuEe-GUI The first version
*/
#include <stdint.h>
/*
* The ARM SMCCC v1.0 calling convention provides the following guarantees about registers:
* Register Modified Return State
* X0...X3 Yes Result values
* X4...X17 Yes Unpredictable
* X18...X30 No Preserved
* SP_EL0 No Preserved
* SP_ELx No Preserved
*/
struct arm_smccc_ret
{
uint64_t x0; /* Parameter registers */
uint64_t x1; /* Parameter registers */
uint64_t x2; /* Parameter registers */
uint64_t x3; /* Parameter registers */
uint64_t x6; /* Parameter register: Optional Session ID register */
};
struct arm_smccc_ret arm_smc_call(uint32_t w0, uint64_t x1, uint64_t x2, uint64_t x3, uint64_t x4, uint64_t x5, uint64_t x6, uint32_t w7);
struct arm_smccc_ret arm_hvc_call(uint32_t w0, uint64_t x1, uint64_t x2, uint64_t x3, uint64_t x4, uint64_t x5, uint64_t x6, uint32_t w7);