include/linux/arm-smccc.h

1 /* SPDX-License-Identifier: GPL-2.0-only */
13  * This file provides common defines for ARM SMC Calling Convention as
17  * This code is up-to-date with version DEN 0028 C
109 /* KVM UID value: 28b46fb6-2ec5-11e9-a9ca-4b564d003a74 */
196  * this hypercall ID.
228 /* ptp_kvm counter type ID */
281 #define SMCCC_RET_NOT_SUPPORTED			-1
282 #define SMCCC_RET_NOT_REQUIRED			-2
283 #define SMCCC_RET_INVALID_PARAMETER		-3
321  * Returns the SOC ID version.
330  * Returns the SOC ID revision.
337  * struct arm_smccc_res - Result from SMC/HVC call
338  * @a0-a3 result values from registers 0 to 3
349  * struct arm_smccc_1_2_regs - Arguments for or Results from SMC/HVC call
350  * @a0-a17 argument values from registers 0 to 17
374  * arm_smccc_1_2_hvc() - make HVC calls
378  * This function is used to make HVC calls following SMC Calling Convention
388  * arm_smccc_1_2_smc() - make SMC calls
392  * This function is used to make SMC calls following SMC Calling Convention
394  * structure to registers prior to the SMC instruction. The return values
395  * are updated with the content from registers on return from the SMC
403  * struct arm_smccc_quirk - Contains quirk information
404  * @id: quirk identification
406  * @a6: Qualcomm quirk entry for returning post-smc call contents of a6
409 	int	id;  member
416  * __arm_smccc_smc() - make SMC calls
417  * @a0-a7: arguments passed in registers 0 to 7
421  * This function is used to make SMC calls following SMC Calling Convention.
423  * to the SMC instruction. The return values are updated with the content
424  * from register 0 to 3 on return from the SMC instruction.  An optional
443  * __arm_smccc_hvc() - make HVC calls
444  * @a0-a7: arguments passed in registers 0 to 7
448  * This function is used to make HVC calls following SMC Calling
470 #define SMCCC_SMC_INST	"smc	#0"
474 #include <asm/opcodes-sec.h>
475 #include <asm/opcodes-virt.h>
562  * arm_smccc_1_1_smc() - make an SMCCC v1.1 compliant SMC call
567  * @a0-a7: arguments passed in registers 0 to 7
570  * This macro is used to make SMC calls following SMC Calling Convention v1.1.
572  * to the SMC instruction. The return values are updated with the content
573  * from register 0 to 3 on return from the SMC instruction if not NULL.
578  * arm_smccc_1_1_hvc() - make an SMCCC v1.1 compliant HVC call
583  * @a0-a7: arguments passed in registers 0 to 7
586  * This macro is used to make HVC calls following SMC Calling Convention v1.1.
607 			___res->a0 = SMCCC_RET_NOT_SUPPORTED;		\
611  * arm_smccc_1_1_invoke() - make an SMCCC v1.1 compliant call
616  * @a0-a7: arguments passed in registers 0 to 7
619  * This macro will make either an HVC call or an SMC call depending on the
620  * current SMCCC conduit. If no valid conduit is available then -1