/* $NetBSD: cpu.h,v 1.106.2.2 2023/12/19 12:28:01 martin Exp $ */ /* * 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. */ #ifndef _VAX_CPU_H_ #define _VAX_CPU_H_ #if defined(_KERNEL_OPT) #include "opt_gprof.h" #include "opt_multiprocessor.h" #include "opt_lockdebug.h" #endif #define CPU_PRINTFATALTRAPS 1 #define CPU_CONSDEV 2 #define CPU_BOOTED_DEVICE 3 #define CPU_BOOTED_KERNEL 4 #ifdef _KERNEL #include #include #include #include #include #include #include #include #define enablertclock() /* * 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 IPI_DEST_MASTER -1 /* Destination is mastercpu */ #define IPI_DEST_ALL -2 /* Broadcast */ extern const struct cpu_mp_dep *mp_dep_call; #endif /* defined(MULTIPROCESSOR) */ #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) */ extern int cpu_printfataltraps; #define curcpu() (curlwp->l_cpu + 0) #define curlwp ((struct lwp *)mfpr(PR_SSP)) #define cpu_number() (curcpu()->ci_cpuid) #define cpu_need_resched(ci, l, flags) \ do { \ struct pcb *pcb = lwp_getpcb(curlwp); \ __USE(flags); \ pcb->P0LR = (pcb->P0LR & ~AST_MASK) | AST_ON; \ mtpr(AST_OK,PR_ASTLVL); \ } while (/*CONSTCOND*/ 0) #define cpu_proc_fork(x, y) do { } while (/*CONSCOND*/0) /* * This allows SIMH to recognize the kernel wants to sleep. */ static inline void cpu_idle(void) { int ipl = mfpr(PR_IPL); mtpr(1, PR_IPL); mtpr(ipl, PR_IPL); } static inline bool cpu_intr_p(void) { register_t psl; __asm("movpsl %0" : "=g"(psl)); return (psl & PSL_IS) != 0; } #if defined(MULTIPROCESSOR) #define CPU_IS_PRIMARY(ci) ((ci)->ci_flags & CI_MASTERCPU) #define CPU_INFO_ITERATOR int __unused #define CPU_INFO_FOREACH(cii, ci) ci = SIMPLEQ_FIRST(&cpus); \ ci != NULL; \ ci = SIMPLEQ_NEXT(ci, ci_next) extern SIMPLEQ_HEAD(cpu_info_qh, cpu_info) cpus; extern char vax_mp_tramp; #endif /* * Notify the current process (p) that it has a signal pending, * process as soon as possible. */ #define cpu_signotify(l) \ do { \ struct pcb *pcb = lwp_getpcb(l); \ pcb->P0LR = (pcb->P0LR & ~AST_MASK) | AST_ON; \ mtpr(AST_OK,PR_ASTLVL); \ } while (/*CONSTCOND*/ 0) /* * 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 */ #define LWP_PC(l) cpu_lwp_pc(l) struct buf; struct pte; #include /* Some low-level prototypes */ #if defined(MULTIPROCESSOR) void cpu_slavesetup(device_t, int); void cpu_boot_secondary_processors(void); void cpu_send_ipi(int, int); void cpu_handle_ipi(void); #endif vaddr_t cpu_lwp_pc(struct lwp *); int badaddr(volatile void *, int); void dumpsys(void); void swapconf(void); void disk_printtype(int, int); void disk_reallymapin(struct buf *, struct pte *, int, int); vaddr_t vax_map_physmem(paddr_t, size_t); void vax_unmap_physmem(vaddr_t, size_t); void ioaccess(vaddr_t, paddr_t, size_t); void iounaccess(vaddr_t, size_t); void findcpu(void); #ifdef DDB int kdbrint(int); #endif #endif /* _KERNEL */ #ifdef _STANDALONE void findcpu(void); #endif #endif /* _VAX_CPU_H_ */