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/* $OpenBSD: cpu.h,v 1.33 2005/11/11 16:50:19 miod Exp $ */
/* $NetBSD: cpu.h,v 1.28 2001/06/14 22:56:58 thorpej Exp $ */
/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* 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, Lawrence Berkeley Laboratory.
*
* 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. 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.
*
* @(#)cpu.h 8.4 (Berkeley) 1/5/94
*/
#ifndef _CPU_H_
#define _CPU_H_
/*
* CTL_MACHDEP definitions.
*/
#define CPU_LED_BLINK 2 /* int: blink leds? */
#define CPU_ALLOWAPERTURE 3 /* allow xf86 operations */
#define CPU_CPUTYPE 4 /* cpu type */
#define CPU_CECCERRORS 5 /* Correctable ECC errors */
#define CPU_CECCLAST 6 /* Correctable ECC last fault addr */
#define CPU_MAXID 7 /* number of valid machdep ids */
#define CTL_MACHDEP_NAMES { \
{ 0, 0 }, \
{ 0, 0 }, \
{ "led_blink", CTLTYPE_INT }, \
{ "allowaperture", CTLTYPE_INT }, \
{ "cputype", CTLTYPE_INT }, \
{ "ceccerrs", CTLTYPE_INT }, \
{ "cecclast", CTLTYPE_QUAD }, \
}
#ifdef _KERNEL
/*
* Exported definitions unique to SPARC cpu support.
*/
#include <machine/ctlreg.h>
#include <machine/psl.h>
#include <machine/reg.h>
#include <machine/intr.h>
#include <sys/sched.h>
/*
* The cpu_info structure is part of a 64KB structure mapped both the kernel
* pmap and a single locked TTE a CPUINFO_VA for that particular processor.
* Each processor's cpu_info is accessible at CPUINFO_VA only for that
* processor. Other processors can access that through an additional mapping
* in the kernel pmap.
*
* The 64KB page contains:
*
* cpu_info
* interrupt stack (all remaining space)
* idle PCB
* idle stack (STACKSPACE - sizeof(PCB))
* 32KB TSB
*/
struct cpu_info {
/* Most important fields first */
struct proc *ci_curproc;
struct pcb *ci_cpcb; /* also initial stack */
struct cpu_info *ci_next;
struct proc *ci_fpproc;
int ci_number;
int ci_upaid;
struct schedstate_percpu ci_schedstate; /* scheduler state */
/* DEBUG/DIAGNOSTIC stuff */
u_long ci_spin_locks; /* # of spin locks held */
u_long ci_simple_locks;/* # of simple locks held */
/* Spinning up the CPU */
void (*ci_spinup)(void); /* spinup routine */
void *ci_initstack;
paddr_t ci_paddr; /* Phys addr of this structure. */
};
extern struct cpu_info *cpus;
extern struct cpu_info cpu_info_store;
#if 1
#define curcpu() (&cpu_info_store)
#else
#define curcpu() ((struct cpu_info *)CPUINFO_VA)
#endif
/*
* definitions of cpu-dependent requirements
* referenced in generic code
*/
#define cpu_swapin(p) /* nothing */
#define cpu_swapout(p) /* nothing */
#define cpu_wait(p) /* nothing */
#if 1
#define cpu_number() 0
#else
#define cpu_number() (curcpu()->ci_number)
#endif
/*
* Arguments to hardclock, softclock and gatherstats encapsulate the
* previous machine state in an opaque clockframe. The ipl is here
* as well for strayintr (see locore.s:interrupt and intr.c:strayintr).
* Note that CLKF_INTR is valid only if CLKF_USERMODE is false.
*/
extern int intstack[];
extern int eintstack[];
struct clockframe {
struct trapframe64 t;
};
#define CLKF_USERMODE(framep) (((framep)->t.tf_tstate & TSTATE_PRIV) == 0)
#define CLKF_PC(framep) ((framep)->t.tf_pc)
#define CLKF_INTR(framep) ((!CLKF_USERMODE(framep))&&\
(((framep)->t.tf_kstack < (vaddr_t)EINTSTACK)&&\
((framep)->t.tf_kstack > (vaddr_t)INTSTACK)))
void setsoftnet(void);
extern int want_ast;
/*
* Preempt the current process if in interrupt from user mode,
* or after the current trap/syscall if in system mode.
*/
extern int want_resched; /* resched() was called */
#define need_resched(ci) (want_resched = 1, want_ast = 1)
/*
* Give a profiling tick to the current process when the user profiling
* buffer pages are invalid. On the sparc, request an ast to send us
* through trap(), marking the proc as needing a profiling tick.
*/
#define need_proftick(p) ((p)->p_flag |= P_OWEUPC, want_ast = 1)
/*
* Notify the current process (p) that it has a signal pending,
* process as soon as possible.
*/
#define signotify(p) (want_ast = 1)
/*
* Only one process may own the FPU state.
*
* XXX this must be per-cpu (eventually)
*/
extern struct proc *fpproc; /* FPU owner */
extern int foundfpu; /* true => we have an FPU */
/* machdep.c */
int ldcontrolb(caddr_t);
void dumpconf(void);
caddr_t reserve_dumppages(caddr_t);
/* clock.c */
struct timeval;
int tickintr(void *); /* level 10 (tick) interrupt code */
int clockintr(void *);/* level 10 (clock) interrupt code */
int statintr(void *); /* level 14 (statclock) interrupt code */
/* locore.s */
struct fpstate64;
void savefpstate(struct fpstate64 *);
void loadfpstate(struct fpstate64 *);
u_int64_t probeget(paddr_t, int, int);
int probeset(paddr_t, int, int, u_int64_t);
#define write_all_windows() __asm __volatile("flushw" : : )
#define write_user_windows() __asm __volatile("flushw" : : )
void proc_trampoline(void);
struct pcb;
void snapshot(struct pcb *);
struct frame *getfp(void);
int xldcontrolb(caddr_t, struct pcb *);
void copywords(const void *, void *, size_t);
void qcopy(const void *, void *, size_t);
void qzero(void *, size_t);
void switchtoctx(int);
/* locore2.c */
void remrq(struct proc *);
/* trap.c */
void pmap_unuse_final(struct proc *);
int rwindow_save(struct proc *);
/* amd7930intr.s */
void amd7930_trap(void);
/* cons.c */
int cnrom(void);
/* zs.c */
void zsconsole(struct tty *, int, int, void (**)(struct tty *, int));
#ifdef KGDB
void zs_kgdb_init(void);
#endif
/* fb.c */
void fb_unblank(void);
/* kgdb_stub.c */
#ifdef KGDB
void kgdb_attach(int (*)(void *), void (*)(void *, int), void *);
void kgdb_connect(int);
void kgdb_panic(void);
#endif
/* emul.c */
int fixalign(struct proc *, struct trapframe64 *);
int emulinstr(vaddr_t, struct trapframe64 *);
int emul_qf(int32_t, struct proc *, union sigval, struct trapframe64 *);
int emul_popc(int32_t, struct proc *, union sigval, struct trapframe64 *);
/*
*
* The SPARC has a Trap Base Register (TBR) which holds the upper 20 bits
* of the trap vector table. The next eight bits are supplied by the
* hardware when the trap occurs, and the bottom four bits are always
* zero (so that we can shove up to 16 bytes of executable code---exactly
* four instructions---into each trap vector).
*
* The hardware allocates half the trap vectors to hardware and half to
* software.
*
* Traps have priorities assigned (lower number => higher priority).
*/
struct trapvec {
int tv_instr[8]; /* the eight instructions */
};
extern struct trapvec *trapbase; /* the 256 vectors */
extern void wzero(void *, u_int);
extern void wcopy(const void *, void *, u_int);
struct blink_led {
void (*bl_func)(void *, int);
void *bl_arg;
SLIST_ENTRY(blink_led) bl_next;
};
extern void blink_led_register(struct blink_led *);
#endif /* _KERNEL */
#endif /* _CPU_H_ */
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