8aa125d0c3
kernel and userland. Reviewed by: andrew, imp, kib Sponsored by: DARPA, AFRL Sponsored by: HEIF5 Differential Revision: https://reviews.freebsd.org/D4554
124 lines
3.5 KiB
C
124 lines
3.5 KiB
C
/*-
|
|
* Copyright (c) 2015 Ruslan Bukin <br@bsdpad.com>
|
|
* All rights reserved.
|
|
*
|
|
* Portions of this software were developed by SRI International and the
|
|
* University of Cambridge Computer Laboratory under DARPA/AFRL contract
|
|
* FA8750-10-C-0237 ("CTSRD"), as part of the DARPA CRASH research programme.
|
|
*
|
|
* Portions of this software were developed by the University of Cambridge
|
|
* Computer Laboratory as part of the CTSRD Project, with support from the
|
|
* UK Higher Education Innovation Fund (HEIF).
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _MACHINE_CPUFUNC_H_
|
|
#define _MACHINE_CPUFUNC_H_
|
|
|
|
#ifdef _KERNEL
|
|
|
|
#include <machine/riscvreg.h>
|
|
|
|
static __inline void
|
|
breakpoint(void)
|
|
{
|
|
|
|
__asm("ebreak");
|
|
}
|
|
|
|
static __inline register_t
|
|
intr_disable(void)
|
|
{
|
|
uint64_t ret;
|
|
|
|
__asm __volatile(
|
|
"csrrci %0, sstatus, 1"
|
|
: "=&r" (ret)
|
|
);
|
|
|
|
return (ret & SSTATUS_IE);
|
|
}
|
|
|
|
static __inline void
|
|
intr_restore(register_t s)
|
|
{
|
|
|
|
__asm __volatile(
|
|
"csrs sstatus, %0"
|
|
:: "r" (s)
|
|
);
|
|
}
|
|
|
|
static __inline void
|
|
intr_enable(void)
|
|
{
|
|
|
|
__asm __volatile(
|
|
"csrsi sstatus, 1"
|
|
);
|
|
}
|
|
|
|
static __inline register_t
|
|
machine_command(uint64_t cmd, uint64_t arg)
|
|
{
|
|
uint64_t res;
|
|
|
|
__asm __volatile(
|
|
"mv t5, %2\n"
|
|
"mv t6, %1\n"
|
|
"ecall\n"
|
|
"mv %0, t6" : "=&r"(res) : "r"(arg), "r"(cmd)
|
|
);
|
|
|
|
return (res);
|
|
}
|
|
|
|
#define cpu_nullop() riscv_nullop()
|
|
#define cpufunc_nullop() riscv_nullop()
|
|
#define cpu_setttb(a) riscv_setttb(a)
|
|
|
|
#define cpu_tlb_flushID() riscv_tlb_flushID()
|
|
#define cpu_tlb_flushID_SE(e) riscv_tlb_flushID_SE(e)
|
|
|
|
#define cpu_dcache_wbinv_range(a, s) riscv_dcache_wbinv_range((a), (s))
|
|
#define cpu_dcache_inv_range(a, s) riscv_dcache_inv_range((a), (s))
|
|
#define cpu_dcache_wb_range(a, s) riscv_dcache_wb_range((a), (s))
|
|
|
|
#define cpu_idcache_wbinv_range(a, s) riscv_idcache_wbinv_range((a), (s))
|
|
#define cpu_icache_sync_range(a, s) riscv_icache_sync_range((a), (s))
|
|
|
|
void riscv_nullop(void);
|
|
void riscv_setttb(vm_offset_t);
|
|
void riscv_tlb_flushID(void);
|
|
void riscv_tlb_flushID_SE(vm_offset_t);
|
|
void riscv_icache_sync_range(vm_offset_t, vm_size_t);
|
|
void riscv_idcache_wbinv_range(vm_offset_t, vm_size_t);
|
|
void riscv_dcache_wbinv_range(vm_offset_t, vm_size_t);
|
|
void riscv_dcache_inv_range(vm_offset_t, vm_size_t);
|
|
void riscv_dcache_wb_range(vm_offset_t, vm_size_t);
|
|
|
|
#endif /* _KERNEL */
|
|
#endif /* _MACHINE_CPUFUNC_H_ */
|