svc.h

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#ifndef PSP_VERSTAGE_SVC_H
#define PSP_VERSTAGE_SVC_H
 
#define SVC_CALL4(SVC_ID, R0, R1, R2, R3, Ret) \
        __asm__ __volatile__ ( \
        "mov r0, %[reg0]\n\t" \
        "mov r1, %[reg1]\n\t" \
        "mov r2, %[reg2]\n\t" \
        "mov r3, %[reg3]\n\t" \
        "svc %[id]\n\t" \
        "mov %[result], r0\n\t" \
        : [result] "=r" (Ret) /* output */ \
        : [id] "i" (SVC_ID), [reg0] "r" (R0), [reg1] "r" (R1), [reg2] "r" (R2), \
                [reg3] "r" (R3) /* input(s) */ \
        : "r0", "r1", "r2", "r3", "memory", "cc" /* list of clobbered registers */)
 
#define SVC_CALL3(SVC_ID, R0,  R1, R2, Ret) \
        __asm__ __volatile__ ( \
        "mov r0, %[reg0]\n\t" \
        "mov r1, %[reg1]\n\t" \
        "mov r2, %[reg2]\n\t" \
        "svc %[id]\n\t" \
        "mov %[result], r0\n\t" \
        : [result] "=r" (Ret) /* output */ \
        : [id] "i" (SVC_ID), [reg0] "r" (R0), [reg1] "r" (R1), [reg2] "r" (R2) \
        : "r0", "r1", "r2", "memory", "cc" /* list of clobbered registers */)
 
#define SVC_CALL2(SVC_ID, R0, R1, Ret) \
        __asm__ __volatile__ ( \
        "mov r0, %[reg0]\n\t" \
        "mov r1, %[reg1]\n\t" \
        "svc %[id]\n\t" \
        "mov %[result], r0\n\t" \
        : [result] "=r" (Ret) /* output */ \
        : [id] "i" (SVC_ID), [reg0] "r" (R0), [reg1] "r" (R1)/* input(s) */ \
        : "r0", "r1", "memory", "cc" /* list of clobbered registers */)
 
#define SVC_CALL1(SVC_ID, R0, Ret) \
        __asm__ __volatile__ ( \
        "mov r0, %[reg0]\n\t" \
        "svc %[id]\n\t" \
        "mov %[result], r0\n\t" \
        : [result] "=r" (Ret) /* output */ \
        : [id] "i" (SVC_ID), [reg0] "r" (R0) /* input(s) */ \
        : "r0", "memory", "cc" /* list of clobbered registers */)
 
#define SVC_CALL0(SVC_ID, Ret) \
        __asm__ __volatile__ ( \
        "svc %[id]\n\t" \
        "mov %[result], r0\n\t" \
        : [result] "=r" (Ret) /* output */ \
        : [id] "I" (SVC_ID) /* input(s) */ \
        : "memory", "cc" /* list of clobbered registers */)
 
#endif /* PSP_VERSTAGE_SVC_H */