diff options
Diffstat (limited to 'roms/u-boot/arch/riscv/include/asm/sbi.h')
| -rw-r--r-- | roms/u-boot/arch/riscv/include/asm/sbi.h | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/roms/u-boot/arch/riscv/include/asm/sbi.h b/roms/u-boot/arch/riscv/include/asm/sbi.h new file mode 100644 index 000000000..53ca31618 --- /dev/null +++ b/roms/u-boot/arch/riscv/include/asm/sbi.h @@ -0,0 +1,122 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2015 Regents of the University of California + * Copyright (c) 2020 Western Digital Corporation or its affiliates. + * + * Taken from Linux arch/riscv/include/asm/sbi.h + */ + +#ifndef _ASM_RISCV_SBI_H +#define _ASM_RISCV_SBI_H + +#include <linux/types.h> + +enum sbi_ext_id { +#ifdef CONFIG_SBI_V01 + SBI_EXT_0_1_SET_TIMER = 0x0, + SBI_EXT_0_1_CONSOLE_PUTCHAR = 0x1, + SBI_EXT_0_1_CONSOLE_GETCHAR = 0x2, + SBI_EXT_0_1_CLEAR_IPI = 0x3, + SBI_EXT_0_1_SEND_IPI = 0x4, + SBI_EXT_0_1_REMOTE_FENCE_I = 0x5, + SBI_EXT_0_1_REMOTE_SFENCE_VMA = 0x6, + SBI_EXT_0_1_REMOTE_SFENCE_VMA_ASID = 0x7, + SBI_EXT_0_1_SHUTDOWN = 0x8, +#endif + SBI_EXT_BASE = 0x10, + SBI_EXT_TIME = 0x54494D45, + SBI_EXT_IPI = 0x735049, + SBI_EXT_RFENCE = 0x52464E43, +}; + +enum sbi_ext_base_fid { + SBI_EXT_BASE_GET_SPEC_VERSION = 0, + SBI_EXT_BASE_GET_IMP_ID, + SBI_EXT_BASE_GET_IMP_VERSION, + SBI_EXT_BASE_PROBE_EXT, + SBI_EXT_BASE_GET_MVENDORID, + SBI_EXT_BASE_GET_MARCHID, + SBI_EXT_BASE_GET_MIMPID, +}; + +enum sbi_ext_time_fid { + SBI_EXT_TIME_SET_TIMER = 0, +}; + +enum sbi_ext_ipi_fid { + SBI_EXT_IPI_SEND_IPI = 0, +}; + +enum sbi_ext_rfence_fid { + SBI_EXT_RFENCE_REMOTE_FENCE_I = 0, + SBI_EXT_RFENCE_REMOTE_SFENCE_VMA, + SBI_EXT_RFENCE_REMOTE_SFENCE_VMA_ASID, +}; + +#ifdef CONFIG_SBI_V01 +#define SBI_EXT_SET_TIMER SBI_EXT_0_1_SET_TIMER +#define SBI_FID_SET_TIMER 0 +#define SBI_EXT_SEND_IPI SBI_EXT_0_1_SEND_IPI +#define SBI_FID_SEND_IPI 0 +#define SBI_EXT_REMOTE_FENCE_I SBI_EXT_0_1_REMOTE_FENCE_I +#define SBI_FID_REMOTE_FENCE_I 0 +#define SBI_EXT_REMOTE_SFENCE_VMA SBI_EXT_0_1_REMOTE_SFENCE_VMA +#define SBI_FID_REMOTE_SFENCE_VMA 0 +#define SBI_EXT_REMOTE_SFENCE_VMA_ASID SBI_EXT_0_1_REMOTE_SFENCE_VMA_ASID +#define SBI_FID_REMOTE_SFENCE_VMA_ASID 0 +#else +#define SBI_EXT_SET_TIMER SBI_EXT_TIME +#define SBI_FID_SET_TIMER SBI_EXT_TIME_SET_TIMER +#define SBI_EXT_SEND_IPI SBI_EXT_IPI +#define SBI_FID_SEND_IPI SBI_EXT_IPI_SEND_IPI +#define SBI_EXT_REMOTE_FENCE_I SBI_EXT_RFENCE +#define SBI_FID_REMOTE_FENCE_I SBI_EXT_RFENCE_REMOTE_FENCE_I +#define SBI_EXT_REMOTE_SFENCE_VMA SBI_EXT_RFENCE +#define SBI_FID_REMOTE_SFENCE_VMA SBI_EXT_RFENCE_REMOTE_SFENCE_VMA +#define SBI_EXT_REMOTE_SFENCE_VMA_ASID SBI_EXT_RFENCE +#define SBI_FID_REMOTE_SFENCE_VMA_ASID SBI_EXT_RFENCE_REMOTE_SFENCE_VMA_ASID +#endif + +#define SBI_SPEC_VERSION_MAJOR_SHIFT 24 +#define SBI_SPEC_VERSION_MAJOR_MASK 0x7f +#define SBI_SPEC_VERSION_MINOR_MASK 0xffffff + +/* SBI return error codes */ +#define SBI_SUCCESS 0 +#define SBI_ERR_FAILURE -1 +#define SBI_ERR_NOT_SUPPORTED -2 +#define SBI_ERR_INVALID_PARAM -3 +#define SBI_ERR_DENIED -4 +#define SBI_ERR_INVALID_ADDRESS -5 + +struct sbiret { + long error; + long value; +}; + +struct sbiret sbi_ecall(int ext, int fid, unsigned long arg0, + unsigned long arg1, unsigned long arg2, + unsigned long arg3, unsigned long arg4, + unsigned long arg5); + +#ifdef CONFIG_SBI_V01 +void sbi_console_putchar(int ch); +int sbi_console_getchar(void); +void sbi_clear_ipi(void); +void sbi_shutdown(void); +void sbi_send_ipi(const unsigned long *hart_mask); +void sbi_remote_fence_i(const unsigned long *hart_mask); +void sbi_remote_sfence_vma(const unsigned long *hart_mask, + unsigned long start, + unsigned long size); +void sbi_remote_sfence_vma_asid(const unsigned long *hart_mask, + unsigned long start, + unsigned long size, + unsigned long asid); +#endif +void sbi_set_timer(uint64_t stime_value); +long sbi_get_spec_version(void); +int sbi_get_impl_id(void); +int sbi_probe_extension(int ext); + +#endif |