/*
* Copyright (c) 1994 Ludd, University of Lule}, Sweden
* All rights reserved.
*
* 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 ``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 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.
*/
/*
* All cpu-dependent info is kept in this struct. Pointer to the
* struct for the current cpu is set up in locore.c.
*/
struct cpu_info;
struct cpu_dep {
void (*cpu_steal_pages)(void); /* pmap init before mm is on */
int (*cpu_mchk)(void *); /* Machine check handling */
void (*cpu_memerr)(void); /* Memory subsystem errors */
/* Autoconfiguration */
void (*cpu_conf)(void);
int (*cpu_gettime)(struct timeval *); /* Read cpu clock time */
void (*cpu_settime)(struct timeval *); /* Write system time to cpu */
short cpu_vups; /* speed of cpu */
short cpu_scbsz; /* (estimated) size of SCB */
void (*cpu_halt)(void); /* Cpu dependent halt call */
void (*cpu_reboot)(int); /* Cpu dependent reboot call */
void (*cpu_clrf)(void); /* Clear cold/warm start flags */
const char * const *cpu_devs; /* mainbus devices */
void (*cpu_attach_cpu)(device_t); /* print CPU info */
int cpu_flags;
void (*cpu_badaddr)(void); /* cpu-specific badaddr() */
};
#if defined(MULTIPROCESSOR)
/*
* All cpu-dependent calls for multicpu systems goes here.
*/
struct cpu_mp_dep {
void (*cpu_startslave)(struct cpu_info *);
void (*cpu_send_ipi)(struct cpu_info *);
void (*cpu_cnintr)(void);
};
/*
* NOTE: This is not bit mask, this is bit _number_.
*/
#define IPI_START_CNTX 1 /* Start console transmitter, proc out */
#define IPI_SEND_CNCHAR 2 /* Write char to console, kernel printf */
#define IPI_RUNNING 3 /* This CPU just started to run */
#define IPI_TBIA 4 /* Flush the TLB */
#define IPI_DDB 5 /* Jump into the DDB loop */
#define IPI_XCALL 6 /* Helper for xcall(9) */
#define IPI_GENERIC 7 /* Generic ipi(9) call */
#define CPU_RAISEIPL 1 /* Must raise IPL until intr is handled */
extern const struct cpu_dep *dep_call;
/* Holds pointer to current CPU struct. */
struct clockframe {
int pc;
int ps;
};
struct cpu_info {
/*
* Public members.
*/
struct cpu_data ci_data; /* MI per-cpu data */
device_t ci_dev; /* device struct for this cpu */
int ci_mtx_oldspl; /* saved spl */
int ci_mtx_count; /* negative count of mutexes */
int ci_cpuid; /* h/w specific cpu id */
int ci_want_resched; /* Should change process */
/*
* Private members.
*/
#if defined(__HAVE_FAST_SOFTINTS)
lwp_t *ci_softlwps[SOFTINT_COUNT];
#endif
vaddr_t ci_istack; /* Interrupt stack location */
const char *ci_cpustr;
int ci_slotid; /* cpu slot */
struct lwp *ci_onproc; /* current user LWP / kthread */
#if defined(MULTIPROCESSOR)
struct lwp *ci_curlwp; /* current lwp (for other cpus) */
volatile int ci_flags; /* See below */
long ci_ipimsgs; /* Sent IPI bits */
struct trapframe *ci_ddb_regs; /* Used by DDB */
SIMPLEQ_ENTRY(cpu_info) ci_next; /* next cpu_info */
#endif
uintptr_t ci_cas_addr; /* current address doing CAS in a RAS */
#if defined(GPROF) && defined(MULTIPROCESSOR)
struct gmonparam *ci_gmon; /* MI per-cpu GPROF */
#endif
};
#define CI_MASTERCPU 1 /* Set if master CPU */
#define CI_RUNNING 2 /* Set when a slave CPU is running */
#define CI_STOPPED 4 /* Stopped (in debugger) */
/*
* 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 cpu_need_proftick(l) \
do { \
struct pcb *pcb = lwp_getpcb(l); \
(l)->l_pflag |= LP_OWEUPC; \
pcb->P0LR = (pcb->P0LR & ~AST_MASK) | AST_ON; \
mtpr(AST_OK,PR_ASTLVL); \
} while (/*CONSTCOND*/ 0)
/*
* This defines the I/O device register space size in pages.
*/
#define IOSPSZ ((64*1024) / VAX_NBPG) /* 64k == 128 pages */
