/* $FreeBSD$ */ /* From: NetBSD: cpu.h,v 1.18 1997/09/23 23:17:49 mjacob Exp */ /* * Copyright (c) 1988 University of Utah. * Copyright (c) 1982, 1990, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * the Systems Programming Group of the University of Utah Computer * Science Department. * * 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. * * from: Utah $Hdr: cpu.h 1.16 91/03/25$ * * @(#)cpu.h 8.4 (Berkeley) 1/5/94 */ #ifndef _MACHINE_CPU_H_ #define _MACHINE_CPU_H_ /* * Exported definitions unique to Alpha cpu support. */ #include #define cpu_getstack(p) ((p)->p_md.md_tf->tf_r[FRAME_SP]) /* * Arguments to hardclock and gatherstats encapsulate the previous * machine state in an opaque clockframe. One the Alpha, we use * what we push on an interrupt (a trapframe). */ struct clockframe { struct trapframe cf_tf; }; #define TRAPF_USERMODE(framep) \ (((framep)->tf_cr_ipsr & IA64_PSR_CPL) == IA64_PSR_CPL_USER) #define TRAPF_PC(framep) ((framep)->tf_cr_iip) #define CLKF_USERMODE(framep) TRAPF_USERMODE(&(framep)->cf_tf) #define CLKF_PC(framep) TRAPF_PC(&(framep)->ct_tf) #define CLKF_BASEPRI(framep) \ (((framep)->cf_tf.tf_cr_ipsr & IA64_PSR_I) == 0) #define CLKF_INTR(framep) (curproc->p_intr_nesting_level >= 2) /* * Give a profiling tick to the current process when the user profiling * buffer pages are invalid. On the hp300, request an ast to send us * through trap, marking the proc as needing a profiling tick. */ #define need_proftick(p) do { \ mtx_lock_spin(&sched_lock); \ (p)->p_sflag |= PS_OWEUPC; \ aston(); \ mtx_unlock_spin(&sched_lock); \ } while (0) /* * CTL_MACHDEP definitions. */ #define CPU_CONSDEV 1 /* dev_t: console terminal device */ #define CPU_ROOT_DEVICE 2 /* string: root device name */ #define CPU_UNALIGNED_PRINT 3 /* int: print unaligned accesses */ #define CPU_UNALIGNED_FIX 4 /* int: fix unaligned accesses */ #define CPU_UNALIGNED_SIGBUS 5 /* int: SIGBUS unaligned accesses */ #define CPU_BOOTED_KERNEL 6 /* string: booted kernel name */ #define CPU_ADJKERNTZ 7 /* int: timezone offset (seconds) */ #define CPU_DISRTCSET 8 /* int: disable resettodr() call */ #define CPU_WALLCLOCK 9 /* int: indicates wall CMOS clock */ #define CPU_MAXID 9 /* 9 valid machdep IDs */ #define CTL_MACHDEP_NAMES { \ { 0, 0 }, \ { "console_device", CTLTYPE_STRUCT }, \ { "root_device", CTLTYPE_STRING }, \ { "unaligned_print", CTLTYPE_INT }, \ { "unaligned_fix", CTLTYPE_INT }, \ { "unaligned_sigbus", CTLTYPE_INT }, \ { "booted_kernel", CTLTYPE_STRING }, \ { "adjkerntz", CTLTYPE_INT }, \ { "disable_rtc_set", CTLTYPE_INT }, \ { "wall_cmos_clock", CTLTYPE_INT }, \ } #ifdef _KERNEL struct pcb; struct proc; struct reg; struct rpb; struct trapframe; extern struct rpb *hwrpb; extern volatile int mc_expected, mc_received; void ast __P((struct trapframe *)); int badaddr __P((void *, size_t)); int badaddr_read __P((void *, size_t, void *)); void child_return __P((struct proc *p)); u_int64_t console_restart __P((u_int64_t, u_int64_t, u_int64_t)); void do_sir __P((void)); void dumpconf __P((void)); void exception_restore __P((void)); /* MAGIC */ void frametoreg __P((struct trapframe *, struct reg *)); long fswintrberr __P((void)); /* MAGIC */ int ia64_pa_access __P((u_long)); void ia64_init __P((void)); void ia64_fpstate_check __P((struct proc *p)); void ia64_fpstate_save __P((struct proc *p, int write)); void ia64_fpstate_drop __P((struct proc *p)); void ia64_fpstate_switch __P((struct proc *p)); void init_prom_interface __P((struct rpb*)); void interrupt __P((u_int64_t, struct trapframe *)); void machine_check __P((unsigned long, struct trapframe *, unsigned long, unsigned long)); u_int64_t hwrpb_checksum __P((void)); void hwrpb_restart_setup __P((void)); void regdump __P((struct trapframe *)); void regtoframe __P((struct reg *, struct trapframe *)); int savectx __P((struct pcb *)); void restorectx __P((struct pcb *)); void set_iointr __P((void (*)(void *, unsigned long))); void switch_exit __P((struct proc *)); /* MAGIC */ void switch_trampoline __P((void)); /* MAGIC */ void syscall __P((int, u_int64_t *, struct trapframe *)); void trap __P((int vector, int imm, struct trapframe *framep)); /* * Return contents of in-cpu fast counter as a sort of "bogo-time" * for non-critical timing. */ static __inline u_int64_t get_cyclecount(void) { return (ia64_get_itc()); } #endif /* _KERNEL */ #endif /* _MACHINE_CPU_H_ */