diff options
Diffstat (limited to 'src/soc/amd/sabrina/psp_verstage/svc.h')
| -rw-r--r-- | src/soc/amd/sabrina/psp_verstage/svc.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/src/soc/amd/sabrina/psp_verstage/svc.h b/src/soc/amd/sabrina/psp_verstage/svc.h new file mode 100644 index 000000000000..86e533a88daa --- /dev/null +++ b/src/soc/amd/sabrina/psp_verstage/svc.h @@ -0,0 +1,59 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +/* TODO: Check if this is still correct */ + +#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 */ |