Add missing files from r354720
MFC with: r354720 Differential Revision: https://reviews.freebsd.org/D22326
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0a0f40c768
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=354721
@ -39,6 +39,9 @@ extern int szsigcode;
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extern uint64_t *vm_page_dump;
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extern int vm_page_dump_size;
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extern u_long elf_hwcap;
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extern register_t mvendorid;
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extern register_t marchid;
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extern register_t mimpid;
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struct dumperinfo;
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@ -1,6 +1,7 @@
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/*-
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* Copyright (c) 2016-2017 Ruslan Bukin <br@bsdpad.com>
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* All rights reserved.
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* Copyright (c) 2019 Mitchell Horne <mhorne@FreeBSD.org>
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*
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* Portions of this software were developed by SRI International and the
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* University of Cambridge Computer Laboratory under DARPA/AFRL contract
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@ -37,6 +38,35 @@
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#ifndef _MACHINE_SBI_H_
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#define _MACHINE_SBI_H_
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/* SBI Specification Version */
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#define SBI_SPEC_VERS_MAJOR_OFFSET 24
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#define SBI_SPEC_VERS_MAJOR_MASK (0x7F << SBI_SPEC_VERS_MAJOR_OFFSET)
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#define SBI_SPEC_VERS_MINOR_OFFSET 0
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#define SBI_SPEC_VERS_MINOR_MASK (0xFFFFFF << SBI_SPEC_VERS_MINOR_OFFSET)
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/* SBI Implementation IDs */
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#define SBI_IMPL_ID_BBL 0
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#define SBI_IMPL_ID_OPENSBI 1
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/* SBI Error Codes */
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#define SBI_SUCCESS 0
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#define SBI_ERR_FAILURE -1
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#define SBI_ERR_NOT_SUPPORTED -2
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#define SBI_ERR_INVALID_PARAM -3
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#define SBI_ERR_DENIED -4
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#define SBI_ERR_INVALID_ADDRESS -5
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/* SBI Base Extension */
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#define SBI_EXT_ID_BASE 0x10
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#define SBI_BASE_GET_SPEC_VERSION 0
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#define SBI_BASE_GET_IMPL_ID 1
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#define SBI_BASE_GET_IMPL_VERSION 2
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#define SBI_BASE_PROBE_EXTENSION 3
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#define SBI_BASE_GET_MVENDORID 4
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#define SBI_BASE_GET_MARCHID 5
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#define SBI_BASE_GET_MIMPID 6
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/* Legacy Extensions */
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#define SBI_SET_TIMER 0
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#define SBI_CONSOLE_PUTCHAR 1
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#define SBI_CONSOLE_GETCHAR 2
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@ -55,13 +85,20 @@
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/*
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* Documentation available at
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* https://github.com/riscv/riscv-sbi-doc/blob/master/riscv-sbi.md
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* https://github.com/riscv/riscv-sbi-doc/blob/master/riscv-sbi.adoc
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*/
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static __inline uint64_t
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struct sbi_ret {
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long error;
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long value;
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};
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static __inline struct sbi_ret
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sbi_call(uint64_t arg7, uint64_t arg6, uint64_t arg0, uint64_t arg1,
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uint64_t arg2, uint64_t arg3)
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{
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struct sbi_ret ret;
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register uintptr_t a0 __asm ("a0") = (uintptr_t)(arg0);
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register uintptr_t a1 __asm ("a1") = (uintptr_t)(arg1);
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register uintptr_t a2 __asm ("a2") = (uintptr_t)(arg2);
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@ -71,13 +108,27 @@ sbi_call(uint64_t arg7, uint64_t arg6, uint64_t arg0, uint64_t arg1,
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__asm __volatile( \
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"ecall" \
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:"+r"(a0) \
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:"r"(a1), "r"(a2), "r"(a3), "r"(a6), "r"(a7) \
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:"+r"(a0), "+r"(a1) \
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:"r"(a2), "r"(a3), "r"(a6), "r"(a7) \
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:"memory");
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return (a0);
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ret.error = a0;
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ret.value = a1;
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return (ret);
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}
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/* Base extension functions and variables. */
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extern u_long sbi_spec_version;
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extern u_long sbi_impl_id;
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extern u_long sbi_impl_version;
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static __inline long
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sbi_probe_extension(long id)
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{
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return (SBI_CALL1(SBI_EXT_ID_BASE, SBI_BASE_PROBE_EXTENSION, id).value);
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}
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/* Legacy extension functions. */
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static __inline void
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sbi_console_putchar(int ch)
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{
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@ -89,7 +140,11 @@ static __inline int
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sbi_console_getchar(void)
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{
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return (SBI_CALL0(SBI_CONSOLE_GETCHAR, 0));
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/*
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* XXX: The "error" is returned here because legacy SBI functions
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* continue to return their value in a0.
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*/
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return (SBI_CALL0(SBI_CONSOLE_GETCHAR, 0).error);
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}
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static __inline void
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@ -146,4 +201,6 @@ sbi_remote_sfence_vma_asid(const unsigned long *hart_mask,
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start, size, asid);
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}
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void sbi_init(void);
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#endif /* !_MACHINE_SBI_H_ */
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