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| author | Anup Patel <anup.patel@wdc.com> | 2018-12-26 07:12:26 +0300 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2018-12-27 06:59:29 +0300 |
| commit | b46970b47e63dce030ef6d4196f7c395a9ea23c1 (patch) | |
| tree | f2c483d2d5e0b9daa5763fe7aa3317b9eaa83e89 /include/sbi/sbi_ecall_interface.h | |
| parent | b5ae8e8a650d8cb0134f03f53472fb026d2ee6e6 (diff) | |
| download | opensbi-b46970b47e63dce030ef6d4196f7c395a9ea23c1.tar.xz | |
lib: Move ECALL defines to sbi_ecall_interface.h
This patch moves all ECALL defines to sbi_ecall_interface.h so
that it can be shared with firmware payloads.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Diffstat (limited to 'include/sbi/sbi_ecall_interface.h')
| -rw-r--r-- | include/sbi/sbi_ecall_interface.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/include/sbi/sbi_ecall_interface.h b/include/sbi/sbi_ecall_interface.h new file mode 100644 index 0000000..53de6a4 --- /dev/null +++ b/include/sbi/sbi_ecall_interface.h @@ -0,0 +1,39 @@ +/* + * Copyright (c) 2018 Western Digital Corporation or its affiliates. + * + * Authors: + * Anup Patel <anup.patel@wdc.com> + * + * SPDX-License-Identifier: BSD-2-Clause + */ + +#ifndef __SBI_ECALL_INTERFACE_H__ +#define __SBI_ECALL_INTERFACE_H__ + +#define SBI_ECALL_SET_TIMER 0 +#define SBI_ECALL_CONSOLE_PUTCHAR 1 +#define SBI_ECALL_CONSOLE_GETCHAR 2 +#define SBI_ECALL_CLEAR_IPI 3 +#define SBI_ECALL_SEND_IPI 4 +#define SBI_ECALL_REMOTE_FENCE_I 5 +#define SBI_ECALL_REMOTE_SFENCE_VMA 6 +#define SBI_ECALL_REMOTE_SFENCE_VMA_ASID 7 +#define SBI_ECALL_SHUTDOWN 8 + +#define SBI_ECALL(__num, __a0, __a1, __a2) ({ \ + register unsigned long a0 asm ("a0") = (unsigned long)(__a0); \ + register unsigned long a1 asm ("a1") = (unsigned long)(__a1); \ + register unsigned long a2 asm ("a2") = (unsigned long)(__a2); \ + register unsigned long a7 asm ("a7") = (unsigned long)(__num);\ + asm volatile ("ecall" \ + : "+r" (a0) \ + : "r" (a1), "r" (a2), "r" (a7) \ + : "memory"); \ + a0; \ +}) + +#define SBI_ECALL_0(__num) SBI_ECALL(__num, 0, 0, 0) +#define SBI_ECALL_1(__num, __a0) SBI_ECALL(__num, __a0, 0, 0) +#define SBI_ECALL_2(__num, __a0, __a1) SBI_ECALL(__num, __a0, __a1, 0) + +#endif |