/*- * Copyright (c) 2015-2018 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_CPU_H_ #define _MACHINE_CPU_H_ #include <machine/atomic.h> #include <machine/cpufunc.h> #include <machine/frame.h> #define TRAPF_PC(tfp) ((tfp)->tf_ra) #define TRAPF_USERMODE(tfp) (((tfp)->tf_sstatus & SSTATUS_SPP) == 0) #define cpu_getstack(td) ((td)->td_frame->tf_sp) #define cpu_setstack(td, sp) ((td)->td_frame->tf_sp = (sp)) #define cpu_spinwait() /* nothing */ #define cpu_lock_delay() DELAY(1) #ifdef _KERNEL /* * 0x0000 CPU ID unimplemented * 0x0001 UC Berkeley Rocket repo * 0x00020x7FFE Reserved for open-source repos * 0x7FFF Reserved for extension * 0x8000 Reserved for anonymous source * 0x80010xFFFE Reserved for proprietary implementations * 0xFFFF Reserved for extension */ #define CPU_IMPL_SHIFT 0 #define CPU_IMPL_MASK (0xffff << CPU_IMPL_SHIFT) #define CPU_IMPL(mimpid) ((mimpid & CPU_IMPL_MASK) >> CPU_IMPL_SHIFT) #define CPU_IMPL_UNIMPLEMEN 0x0 #define CPU_IMPL_UCB_ROCKET 0x1 #define CPU_PART_SHIFT 62 #define CPU_PART_MASK (0x3ul << CPU_PART_SHIFT) #define CPU_PART(misa) ((misa & CPU_PART_MASK) >> CPU_PART_SHIFT) #define CPU_PART_RV32 0x1 #define CPU_PART_RV64 0x2 #define CPU_PART_RV128 0x3 extern char btext[]; extern char etext[]; void cpu_halt(void) __dead2; void cpu_reset(void) __dead2; void fork_trampoline(void); void identify_cpu(void); void swi_vm(void *v); static __inline uint64_t get_cyclecount(void) { return (rdcycle()); } #endif #endif /* !_MACHINE_CPU_H_ */ |