/* $OpenBSD: machdep.c,v 1.7 2007/06/06 17:15:12 deraadt Exp $ */
/*
* Copyright (c) 2005 Michael Shalayeff
* All rights reserved.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER IN
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/signalvar.h>
#include <sys/kernel.h>
#include <sys/proc.h>
#include <sys/buf.h>
#include <sys/reboot.h>
#include <sys/device.h>
#include <sys/conf.h>
#include <sys/file.h>
#include <sys/timeout.h>
#include <sys/malloc.h>
#include <sys/mbuf.h>
#include <sys/msgbuf.h>
#include <sys/ioctl.h>
#include <sys/tty.h>
#include <sys/user.h>
#include <sys/exec.h>
#include <sys/sysctl.h>
#include <sys/core.h>
#include <sys/kcore.h>
#include <sys/extent.h>
#ifdef SYSVMSG
#include <sys/msg.h>
#endif
#include <sys/mount.h>
#include <sys/syscallargs.h>
#include <uvm/uvm.h>
#include <uvm/uvm_page.h>
#include <dev/cons.h>
#include <dev/clock_subr.h>
#include <machine/pdc.h>
#include <machine/iomod.h>
#include <machine/psl.h>
#include <machine/reg.h>
#include <machine/autoconf.h>
#include <machine/kcore.h>
#ifdef COMPAT_HPUX
#include <compat/hpux/hpux.h>
#endif
#ifdef DDB
#include <machine/db_machdep.h>
#include <ddb/db_access.h>
#include <ddb/db_sym.h>
#include <ddb/db_extern.h>
#endif
#include <hppa/dev/cpudevs.h>
/*
* Patchable buffer cache parameters
*/
#ifndef BUFCACHEPERCENT
#define BUFCACHEPERCENT 10
#endif /* BUFCACHEPERCENT */
#ifdef BUFPAGES
int bufpages = BUFPAGES;
#else
int bufpages = 0;
#endif
int bufcachepercent = BUFCACHEPERCENT;
/*
* Different kinds of flags used throughout the kernel.
*/
int cold = 1; /* unset when engine is up to go */
extern int msgbufmapped; /* set when safe to use msgbuf */
/*
* cache configuration, for most machines is the same
* numbers, so it makes sense to do defines w/ numbers depending
* on configured cpu types in the kernel
*/
int icache_stride, icache_line_mask;
int dcache_stride, dcache_line_mask;
/*
* things to not kill
*/
volatile u_int8_t *machine_ledaddr;
int machine_ledword, machine_leds;
struct cpu_info cpu0_info;
/*
* CPU params (should be the same for all cpus in the system)
*/
struct pdc_cache pdc_cache PDC_ALIGNMENT;
struct pdc_model pdc_model PDC_ALIGNMENT;
/* w/ a little deviation should be the same for all installed cpus */
u_int cpu_ticksnum, cpu_ticksdenom;
/* exported info */
char machine[] = MACHINE;
char cpu_model[128];
int cpu_hvers;
enum hppa_cpu_type cpu_type;
const char *cpu_typename;
u_int fpu_version;
#ifdef COMPAT_HPUX
int cpu_model_hpux; /* contains HPUX_SYSCONF_CPU* kind of value */
#endif
dev_t bootdev;
int physmem, resvmem, resvphysmem, esym;
paddr_t avail_end;
/*
* Things for MI glue to stick on.
*/
struct user *proc0paddr;
long mem_ex_storage[EXTENT_FIXED_STORAGE_SIZE(32) / sizeof(long)];
struct extent *hppa_ex;
struct vm_map *exec_map = NULL;
struct vm_map *phys_map = NULL;
/* Virtual page frame for /dev/mem (see mem.c) */
vaddr_t vmmap;
void delay_init(void);
static __inline void fall(int, int, int, int, int);
void dumpsys(void);
void hpmc_dump(void);
void cpuid(void);
/*
* wide used hardware params
*/
struct pdc_hwtlb pdc_hwtlb PDC_ALIGNMENT;
struct pdc_coproc pdc_coproc PDC_ALIGNMENT;
struct pdc_coherence pdc_coherence PDC_ALIGNMENT;
struct pdc_spidb pdc_spidbits PDC_ALIGNMENT;
struct pdc_model pdc_model PDC_ALIGNMENT;
#ifdef DEBUG
int sigdebug = 0;
pid_t sigpid = 0;
#define SDB_FOLLOW 0x01
#endif
int
hppa_cpuspeed(int *mhz)
{
*mhz = PAGE0->mem_10msec / 10000;
return (0);
}
void
hppa_init(start)
paddr_t start;
{
extern int kernel_text;
int error;
mtctl((long)&cpu0_info, 24);
pdc_init(); /* init PDC iface, so we can call em easy */
delay_init(); /* calculate cpu clock ratio */
cpuid();
/* cache parameters */
if ((error = pdc_call((iodcio_t)pdc, 0, PDC_CACHE, PDC_CACHE_DFLT,
&pdc_cache)) < 0) {
#ifdef DEBUG
printf("WARNING: PDC_CACHE error %d\n", error);
#endif
}
dcache_line_mask = pdc_cache.dc_conf.cc_line * 16 - 1;
dcache_stride = pdc_cache.dc_stride;
icache_line_mask = pdc_cache.ic_conf.cc_line * 16 - 1;
icache_stride = pdc_cache.ic_stride;
/* cache coherence params (pbably available for 8k only) */
error = pdc_call((iodcio_t)pdc, 0, PDC_CACHE, PDC_CACHE_SETCS,
&pdc_coherence, 1, 1, 1, 1);
#ifdef DEBUG
printf ("PDC_CACHE_SETCS: %d, %d, %d, %d (%d)\n",
pdc_coherence.ia_cst, pdc_coherence.da_cst,
pdc_coherence.ita_cst, pdc_coherence.dta_cst, error);
#endif
error = pdc_call((iodcio_t)pdc, 0, PDC_CACHE, PDC_CACHE_GETSPIDB,
&pdc_spidbits, 0, 0, 0, 0);
printf("SPID bits: 0x%x, error = %d\n", pdc_spidbits.spidbits, error);
#if 0
TODO hpmc/toc/pfr
/* setup hpmc handler */
{
extern u_int hpmc_v[]; /* from locore.s */
register u_int *p = hpmc_v;
if (pdc_call((iodcio_t)pdc, 0, PDC_INSTR, PDC_INSTR_DFLT, p))
*p = 0x08000240;
p[6] = (u_int)&hpmc_dump;
p[7] = 32;
p[5] = -(p[0] + p[1] + p[2] + p[3] + p[4] + p[6] + p[7]);
}
{
extern u_int hppa_toc[], hppa_toc_end[];
register u_int cksum, *p;
for (cksum = 0, p = hppa_toc; p < hppa_toc_end; p++)
cksum += *p;
*p = cksum;
PAGE0->ivec_toc = (u_int)&hppa_toc[0];
PAGE0->ivec_toclen = (hppa_toc_end - hppa_toc + 1) * 4;
}
{
extern u_int hppa_pfr[], hppa_pfr_end[];
register u_int cksum, *p;
for (cksum = 0, p = hppa_pfr; p < hppa_pfr_end; p++)
cksum += *p;
*p = cksum;
PAGE0->ivec_mempf = (u_int)&hppa_pfr[0];
PAGE0->ivec_mempflen = (hppa_pfr_end - hppa_pfr + 1) * 4;
}
#endif
avail_end = trunc_page(PAGE0->imm_max_mem);
if (avail_end > 0x4000000)
avail_end = 0x4000000;
physmem = btoc(avail_end);
resvmem = btoc(((vaddr_t)&kernel_text));
/* we hope this won't fail */
hppa_ex = extent_create("mem", 0, HPPA_PHYSMAP, M_DEVBUF,
(caddr_t)mem_ex_storage, sizeof(mem_ex_storage),
EX_NOCOALESCE|EX_NOWAIT);
if (extent_alloc_region(hppa_ex, 0, (vaddr_t)PAGE0->imm_max_mem,
EX_NOWAIT))
panic("cannot reserve main memory");
#ifdef SYSVMSG
{
vaddr_t v;
v = round_page(start);
#define valloc(name, type, num) (name) = (type *)v; v = (vaddr_t)((name)+(num))
valloc(msgpool, char, msginfo.msgmax);
valloc(msgmaps, struct msgmap, msginfo.msgseg);
valloc(msghdrs, struct msg, msginfo.msgtql);
valloc(msqids, struct msqid_ds, msginfo.msgmni);
#undef valloc
v = round_page(v);
bzero ((void *)start, (v - start));
start = v;
}
#endif
/* sets resvphysmem */
pmap_bootstrap(start);
/* space has been reserved in pmap_bootstrap() */
msgbufp = (struct msgbuf *)((vaddr_t)ptoa(physmem) -
round_page(MSGBUFSIZE));
initmsgbuf((caddr_t)msgbufp, round_page(MSGBUFSIZE));
msgbufmapped = 1;
/* they say PDC_COPROC might turn fault light on */
pdc_call((iodcio_t)pdc, 0, PDC_CHASSIS, PDC_CHASSIS_DISP,
PDC_OSTAT(PDC_OSTAT_RUN) | 0xCEC0);
cpu_cpuspeed = &hppa_cpuspeed;
#ifdef DDB
ddb_init();
if (boothowto & RB_KDB)
Debugger();
#endif
ptlball();
ficacheall();
fdcacheall();
printf("out\n");
}
void
cpuid()
{
extern u_int fpu_enable;
struct pdc_cpuid pdc_cpuid PDC_ALIGNMENT;
int error;
/* identify system type */
if ((error = pdc_call((iodcio_t)pdc, 0, PDC_MODEL, PDC_MODEL_INFO,
&pdc_model)) < 0) {
#ifdef DEBUG
printf("WARNING: PDC_MODEL error %d\n", error);
#endif
pdc_model.hvers = 0;
}
bzero(&pdc_cpuid, sizeof(pdc_cpuid));
if (pdc_call((iodcio_t)pdc, 0, PDC_MODEL, PDC_MODEL_CPUID,
&pdc_cpuid, 0, 0, 0, 0) >= 0) {
/* patch for old 8200 */
if (pdc_cpuid.version == HPPA_CPU_PCXU &&
pdc_cpuid.revision > 0x0d)
pdc_cpuid.version = HPPA_CPU_PCXUP;
cpu_type = pdc_cpuid.version;
}
/* locate coprocessors and SFUs */
bzero(&pdc_coproc, sizeof(pdc_coproc));
if ((error = pdc_call((iodcio_t)pdc, 0, PDC_COPROC, PDC_COPROC_DFLT,
&pdc_coproc, 0, 0, 0, 0)) < 0)
printf("WARNING: PDC_COPROC error %d\n", error);
else {
printf("pdc_coproc: 0x%x, 0x%x; model %x rev %x\n",
pdc_coproc.ccr_enable, pdc_coproc.ccr_present,
pdc_coproc.fpu_model, pdc_coproc.fpu_revision);
fpu_enable = pdc_coproc.ccr_enable & 0xc0;
/* a kludge to detect PCXW */
if (pdc_coproc.fpu_model == HPPA_FPU_PCXW)
cpu_type = HPPA_CPU_PCXW;
}
if (!cpu_type)
printf("WARNING: UNKNOWN CPU TYPE; GOOD LUCK\n");
cpu_typename = hppa_mod_info(HPPA_TYPE_CPU, cpu_type);
if (pdc_model.arch_rev != 8)
panic("CANNOT RUN 64BIT KERNEL on 32BIT CPU");
{
const char *p;
char buf[32];
cpu_hvers = pdc_model.hvers >> 4;
if (!cpu_hvers) {
p = "(UNKNOWN)";
} else {
p = hppa_mod_info(HPPA_TYPE_BOARD, cpu_hvers);
if (!p) {
snprintf(buf, sizeof buf, "(UNKNOWN 0x%x)",
cpu_hvers);
p = buf;
}
}
snprintf(cpu_model, sizeof cpu_model,
"HP 9000/%s PA-RISC 2.0", p);
}
#ifdef DEBUG
printf("%s\n", cpu_model);
#endif
}
void
cpu_startup(void)
{
vaddr_t minaddr, maxaddr;
/*
* psychodelic kingdom come
* ... run, run, run
* psychodelic kings and queens
* join me in this one love dream
*/
printf("%s%s\n", version, cpu_model);
printf("real mem = %u (%u reserved for PROM, %u used by OpenBSD)\n",
ctob(physmem), ctob(resvmem), ctob(resvphysmem - resvmem));
/*
* Determine how many buffers to allocate.
* We allocate bufcachepercent% of memory for buffer space.
*/
if (bufpages == 0)
bufpages = physmem * bufcachepercent / 100;
/* Restrict to at most 25% filled kvm */
if (bufpages >
(VM_MAX_KERNEL_ADDRESS-VM_MIN_KERNEL_ADDRESS) / PAGE_SIZE / 4)
bufpages = (VM_MAX_KERNEL_ADDRESS-VM_MIN_KERNEL_ADDRESS) /
PAGE_SIZE / 4;
printf("here3\n");
/*
* Allocate a submap for exec arguments. This map effectively
* limits the number of processes exec'ing at any time.
*/
minaddr = vm_map_min(kernel_map);
exec_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr,
16*NCARGS, VM_MAP_PAGEABLE, FALSE, NULL);
printf("here4\n");
/*
* Allocate a submap for physio
*/
phys_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr,
VM_PHYS_SIZE, 0, FALSE, NULL);
printf("here5\n");
printf("avail mem = %lu\n", ptoa(uvmexp.free));
/*
* Set up buffers, so they can be used to read disk labels.
*/
bufinit();
vmmap = uvm_km_valloc_wait(kernel_map, NBPG);
printf("here6\n");
/*
* Configure the system.
*/
if (boothowto & RB_CONFIG) {
#ifdef BOOT_CONFIG
user_config();
#else
printf("kernel does not support -c; continuing..\n");
#endif
}
printf("here7\n");
}
/*
* initialize the system time from the time of day clock
*/
void
inittodr(t)
time_t t;
{
struct pdc_tod tod PDC_ALIGNMENT;
int error, tbad = 0;
if (t < 12*SECYR) {
printf ("WARNING: preposterous time in file system");
t = 6*SECYR + 186*SECDAY + SECDAY/2;
tbad = 1;
}
if ((error = pdc_call((iodcio_t)pdc,
1, PDC_TOD, PDC_TOD_READ, &tod, 0, 0, 0, 0, 0)))
printf("clock: failed to fetch (%d)\n", error);
time.tv_sec = tod.sec;
time.tv_usec = tod.usec;
if (!tbad) {
u_long dt;
dt = (time.tv_sec < t)? t - time.tv_sec : time.tv_sec - t;
if (dt < 2 * SECDAY)
return;
printf("WARNING: clock %s %ld days",
time.tv_sec < t? "lost" : "gained", dt / SECDAY);
}
printf (" -- CHECK AND RESET THE DATE!\n");
}
/*
* reset the time of day clock to the value in time
*/
void
resettodr()
{
int error;
if ((error = pdc_call((iodcio_t)pdc, 1, PDC_TOD, PDC_TOD_WRITE,
time.tv_sec, time.tv_usec)))
printf("clock: failed to save (%d)\n", error);
}
/*
* compute cpu clock ratio such as:
* cpu_ticksnum / cpu_ticksdenom = t + delta
* delta -> 0
*/
void
delay_init(void)
{
u_long num, denom, delta, mdelta;
mdelta = ULONG_MAX;
for (denom = 1; denom < 1000; denom++) {
num = (PAGE0->mem_10msec * denom) / 10000;
delta = num * 10000 / denom - PAGE0->mem_10msec;
if (!delta) {
cpu_ticksdenom = denom;
cpu_ticksnum = num;
break;
} else if (delta < mdelta) {
cpu_ticksdenom = denom;
cpu_ticksnum = num;
mdelta = delta;
}
}
printf("nom=%lu denom=%lu\n", cpu_ticksnum, cpu_ticksdenom);
}
void
delay(us)
u_int us;
{
u_long start, end, n;
start = mfctl(CR_ITMR);
while (us) {
n = min(1000, us);
end = start + n * cpu_ticksnum / cpu_ticksdenom;
/* N.B. Interval Timer may wrap around */
if (end < start)
do
start = mfctl(CR_ITMR);
while (start > end);
do
start = mfctl(CR_ITMR);
while (start < end);
us -= n;
}
}
static __inline void
fall(c_base, c_count, c_loop, c_stride, data)
int c_base, c_count, c_loop, c_stride, data;
{
int loop;
for (; c_count--; c_base += c_stride)
for (loop = c_loop; loop--; )
if (data)
__asm __volatile("fdce 0(%%sr0,%0)"
:: "r" (c_base));
else
__asm __volatile("fice 0(%%sr0,%0)"
:: "r" (c_base));
}
void
ficacheall(void)
{
/*
* Flush the instruction, then data cache.
*/
fall(pdc_cache.ic_base, pdc_cache.ic_count, pdc_cache.ic_loop,
pdc_cache.ic_stride, 0);
sync_caches();
}
void
fdcacheall(void)
{
fall(pdc_cache.dc_base, pdc_cache.dc_count, pdc_cache.dc_loop,
pdc_cache.dc_stride, 1);
sync_caches();
}
void
ptlball(void)
{
register pa_space_t sp;
register int i, j, k;
/* instruction TLB */
sp = pdc_cache.it_sp_base;
for (i = 0; i < pdc_cache.it_sp_count; i++) {
register vaddr_t off = pdc_cache.it_off_base;
for (j = 0; j < pdc_cache.it_off_count; j++) {
for (k = 0; k < pdc_cache.it_loop; k++)
pitlb(sp, off);
off += pdc_cache.it_off_stride;
}
sp += pdc_cache.it_sp_stride;
}
/* data TLB */
sp = pdc_cache.dt_sp_base;
for (i = 0; i < pdc_cache.dt_sp_count; i++) {
register vaddr_t off = pdc_cache.dt_off_base;
for (j = 0; j < pdc_cache.dt_off_count; j++) {
for (k = 0; k < pdc_cache.dt_loop; k++)
pdtlb(sp, off);
off += pdc_cache.dt_off_stride;
}
sp += pdc_cache.dt_sp_stride;
}
}
void
boot(howto)
int howto;
{
/* If system is cold, just halt. */
if (cold) {
/* (Unless the user explicitly asked for reboot.) */
if ((howto & RB_USERREQ) == 0)
howto |= RB_HALT;
} else {
boothowto = howto | (boothowto & RB_HALT);
if (!(howto & RB_NOSYNC)) {
vfs_shutdown();
/*
* If we've been adjusting the clock, the todr
* will be out of synch; adjust it now unless
* the system was sitting in ddb.
*/
if ((howto & RB_TIMEBAD) == 0)
resettodr();
else
printf("WARNING: not updating battery clock\n");
}
/* XXX probably save howto into stable storage */
splhigh();
if (howto & RB_DUMP)
dumpsys();
doshutdownhooks();
}
/* in case we came on powerfail interrupt */
if (cold_hook)
(*cold_hook)(HPPA_COLD_COLD);
if (howto & RB_HALT) {
if (howto & RB_POWERDOWN && cold_hook) {
printf("Powering off...");
DELAY(2000000);
(*cold_hook)(HPPA_COLD_OFF);
DELAY(1000000);
}
printf("System halted!\n");
DELAY(2000000);
__asm __volatile("stwas %0, 0(%1)"
:: "r" (CMD_STOP), "r" (HPPA_LBCAST + iomod_command));
} else {
printf("rebooting...");
DELAY(2000000);
__asm __volatile(".export hppa_reset, entry\n\t"
".label hppa_reset");
__asm __volatile("stwas %0, 0(%1)"
:: "r" (CMD_RESET), "r" (HPPA_LBCAST + iomod_command));
}
for(;;); /* loop while bus reset is comming up */
/* NOTREACHED */
}
u_long dumpmag = 0x8fca0101; /* magic number */
int dumpsize = 0; /* pages */
long dumplo = 0; /* blocks */
/*
* cpu_dumpsize: calculate size of machine-dependent kernel core dump headers.
*/
int
cpu_dumpsize(void)
{
int size;
size = ALIGN(sizeof(kcore_seg_t)) + ALIGN(sizeof(cpu_kcore_hdr_t));
if (roundup(size, dbtob(1)) != dbtob(1))
return -1;
return 1;
}
/*
* Called from HPMC handler in locore
*/
void
hpmc_dump(void)
{
printf("HPMC\n");
cold = 0;
boot(RB_NOSYNC);
}
int
cpu_dump(void)
{
long buf[dbtob(1) / sizeof (long)];
kcore_seg_t *segp;
cpu_kcore_hdr_t *cpuhdrp;
segp = (kcore_seg_t *)buf;
cpuhdrp = (cpu_kcore_hdr_t *)&buf[ALIGN(sizeof(*segp)) / sizeof (long)];
/*
* Generate a segment header.
*/
CORE_SETMAGIC(*segp, KCORE_MAGIC, MID_MACHINE, CORE_CPU);
segp->c_size = dbtob(1) - ALIGN(sizeof(*segp));
/*
* Add the machine-dependent header info
*/
/* nothing for now */
return (bdevsw[major(dumpdev)].d_dump)
(dumpdev, dumplo, (caddr_t)buf, dbtob(1));
}
/*
* Dump the kernel's image to the swap partition.
*/
#define BYTES_PER_DUMP NBPG
void
dumpsys(void)
{
int psize, bytes, i, n;
caddr_t maddr;
daddr64_t blkno;
int (*dump)(dev_t, daddr64_t, caddr_t, size_t);
int error;
/* Save registers
savectx(&dumppcb); */
if (dumpsize == 0)
dumpconf();
if (dumplo <= 0) {
printf("\ndump to dev %x not possible\n", dumpdev);
return;
}
printf("\ndumping to dev %x, offset %ld\n", dumpdev, dumplo);
psize = (*bdevsw[major(dumpdev)].d_psize)(dumpdev);
printf("dump ");
if (psize == -1) {
printf("area unavailable\n");
return;
}
if (!(error = cpu_dump())) {
bytes = ctob(physmem);
maddr = NULL;
blkno = dumplo + cpu_dumpsize();
dump = bdevsw[major(dumpdev)].d_dump;
for (i = 0; i < bytes; i += n) {
/* Print out how many MBs we are to go. */
n = bytes - i;
if (n && (n % (1024*1024)) == 0)
printf("%d ", n / (1024 * 1024));
/* Limit size for next transfer. */
if (n > BYTES_PER_DUMP)
n = BYTES_PER_DUMP;
if ((error = (*dump)(dumpdev, blkno, maddr, n)))
break;
maddr += n;
blkno += btodb(n);
}
}
switch (error) {
case ENXIO: printf("device bad\n"); break;
case EFAULT: printf("device not ready\n"); break;
case EINVAL: printf("area improper\n"); break;
case EIO: printf("i/o error\n"); break;
case EINTR: printf("aborted from console\n"); break;
case 0: printf("succeeded\n"); break;
default: printf("error %d\n", error); break;
}
}
/* bcopy(), error on fault */
int
kcopy(from, to, size)
const void *from;
void *to;
size_t size;
{
return spcopy(HPPA_SID_KERNEL, from, HPPA_SID_KERNEL, to, size);
}
int
copystr(src, dst, size, lenp)
const void *src;
void *dst;
size_t size;
size_t *lenp;
{
return spstrcpy(HPPA_SID_KERNEL, src, HPPA_SID_KERNEL, dst, size, lenp);
}
int
copyinstr(src, dst, size, lenp)
const void *src;
void *dst;
size_t size;
size_t *lenp;
{
return spstrcpy(curproc->p_addr->u_pcb.pcb_space, src,
HPPA_SID_KERNEL, dst, size, lenp);
}
int
copyoutstr(src, dst, size, lenp)
const void *src;
void *dst;
size_t size;
size_t *lenp;
{
return spstrcpy(HPPA_SID_KERNEL, src,
curproc->p_addr->u_pcb.pcb_space, dst, size, lenp);
}
int
copyin(src, dst, size)
const void *src;
void *dst;
size_t size;
{
return spcopy(curproc->p_addr->u_pcb.pcb_space, src,
HPPA_SID_KERNEL, dst, size);
}
int
copyout(src, dst, size)
const void *src;
void *dst;
size_t size;
{
return spcopy(HPPA_SID_KERNEL, src,
curproc->p_addr->u_pcb.pcb_space, dst, size);
}
/*
* Set registers on exec.
*/
void
setregs(p, pack, stack, retval)
struct proc *p;
struct exec_package *pack;
u_long stack;
register_t *retval;
{
extern paddr_t fpu_curpcb; /* from locore.S */
struct trapframe *tf = p->p_md.md_regs;
struct pcb *pcb = &p->p_addr->u_pcb;
register_t zero;
tf->tf_flags = TFF_SYS|TFF_LAST;
tf->tf_iioq[1] = 4 +
(tf->tf_iioq[0] = pack->ep_entry | HPPA_PC_PRIV_USER);
tf->tf_rp = 0;
tf->tf_args[0] = (u_long)PS_STRINGS;
tf->tf_args[1] = tf->tf_args[2] = 0; /* XXX dynload stuff */
/* setup terminal stack frame */
stack = (stack + 0x1f) & ~0x1f;
tf->tf_r3 = stack;
tf->tf_sp = stack += HPPA_FRAME_SIZE;
tf->tf_ret1 = stack - 16; /* ap */
zero = 0;
copyout(&zero, (caddr_t)(stack - HPPA_FRAME_SIZE), sizeof(register_t));
copyout(&zero, (caddr_t)(stack + HPPA_FRAME_RP), sizeof(register_t));
/* reset any of the pending FPU exceptions */
if (tf->tf_cr30 == fpu_curpcb) {
fpu_exit();
fpu_curpcb = 0;
}
pcb->pcb_fpregs[0] = ((u_int64_t)HPPA_FPU_INIT) << 32;
pcb->pcb_fpregs[1] = 0;
pcb->pcb_fpregs[2] = 0;
pcb->pcb_fpregs[3] = 0;
fdcache(HPPA_SID_KERNEL, (vaddr_t)pcb->pcb_fpregs, 8 * 4);
retval[1] = 0;
}
/*
* Send an interrupt to process.
*/
void
sendsig(catcher, sig, mask, code, type, val)
sig_t catcher;
int sig, mask;
u_long code;
int type;
union sigval val;
{
extern paddr_t fpu_curpcb; /* from locore.S */
extern u_int fpu_enable;
struct proc *p = curproc;
struct trapframe *tf = p->p_md.md_regs;
struct sigacts *psp = p->p_sigacts;
struct sigcontext ksc;
siginfo_t ksi;
register_t scp, sip, zero;
int sss;
/* TODO sendsig */
#ifdef DEBUG
if ((sigdebug & SDB_FOLLOW) && (!sigpid || p->p_pid == sigpid))
printf("sendsig: %s[%d] sig %d catcher %p\n",
p->p_comm, p->p_pid, sig, catcher);
#endif
/* flush the FPU ctx first */
if (tf->tf_cr30 == fpu_curpcb) {
mtctl(fpu_enable, CR_CCR);
fpu_save(fpu_curpcb);
/* fpu_curpcb = 0; only needed if fpregs are preset */
mtctl(0, CR_CCR);
}
ksc.sc_onstack = psp->ps_sigstk.ss_flags & SS_ONSTACK;
/*
* Allocate space for the signal handler context.
*/
if ((psp->ps_flags & SAS_ALTSTACK) && !ksc.sc_onstack &&
(psp->ps_sigonstack & sigmask(sig))) {
scp = (register_t)psp->ps_sigstk.ss_sp;
psp->ps_sigstk.ss_flags |= SS_ONSTACK;
} else
scp = (tf->tf_sp + 63) & ~63;
sss = (sizeof(ksc) + 63) & ~63;
sip = 0;
if (psp->ps_siginfo & sigmask(sig)) {
sip = scp + sizeof(ksc);
sss += (sizeof(ksi) + 63) & ~63;
}
#ifdef DEBUG
if ((tf->tf_iioq[0] & ~PAGE_MASK) == SYSCALLGATE)
printf("sendsig: interrupted syscall at 0x%x:0x%x, flags %b\n",
tf->tf_iioq[0], tf->tf_iioq[1], tf->tf_ipsw, PSL_BITS);
#endif
ksc.sc_mask = mask;
ksc.sc_fp = scp + sss;
ksc.sc_ps = tf->tf_ipsw;
ksc.sc_pcoqh = tf->tf_iioq[0];
ksc.sc_pcoqt = tf->tf_iioq[1];
bcopy(tf, &ksc.sc_regs[0], 32*8);
ksc.sc_regs[0] = tf->tf_sar;
bcopy(p->p_addr->u_pcb.pcb_fpregs, ksc.sc_fpregs,
sizeof(ksc.sc_fpregs));
sss += HPPA_FRAME_SIZE;
tf->tf_args[0] = sig;
tf->tf_args[1] = sip;
tf->tf_args[2] = tf->tf_r4 = scp;
tf->tf_args[3] = (register_t)catcher;
tf->tf_sp = scp + sss;
tf->tf_ipsw &= ~(PSL_N|PSL_B);
tf->tf_iioq[0] = HPPA_PC_PRIV_USER | p->p_sigcode;
tf->tf_iioq[1] = tf->tf_iioq[0] + 4;
/* disable tracing in the trapframe */
#ifdef DEBUG
if ((sigdebug & SDB_FOLLOW) && (!sigpid || p->p_pid == sigpid))
printf("sendsig(%d): sig %d scp %p fp %p sp 0x%x\n",
p->p_pid, sig, scp, ksc.sc_fp, (register_t)scp + sss);
#endif
if (copyout(&ksc, (void *)scp, sizeof(ksc)))
sigexit(p, SIGILL);
if (sip) {
initsiginfo(&ksi, sig, code, type, val);
if (copyout(&ksi, (void *)sip, sizeof(ksi)))
sigexit(p, SIGILL);
}
zero = 0;
if (copyout(&zero, (caddr_t)scp + sss - HPPA_FRAME_SIZE,
sizeof(register_t)))
sigexit(p, SIGILL);
#ifdef DEBUG
if ((sigdebug & SDB_FOLLOW) && (!sigpid || p->p_pid == sigpid))
printf("sendsig(%d): pc 0x%x, catcher 0x%x\n", p->p_pid,
tf->tf_iioq[0], tf->tf_args[3]);
#endif
}
int
sys_sigreturn(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
extern paddr_t fpu_curpcb; /* from locore.S */
struct sys_sigreturn_args /* {
syscallarg(struct sigcontext *) sigcntxp;
} */ *uap = v;
struct sigcontext *scp, ksc;
struct trapframe *tf = p->p_md.md_regs;
int error;
/* TODO sigreturn */
scp = SCARG(uap, sigcntxp);
#ifdef DEBUG
if ((sigdebug & SDB_FOLLOW) && (!sigpid || p->p_pid == sigpid))
printf("sigreturn: pid %d, scp %p\n", p->p_pid, scp);
#endif
/* flush the FPU ctx first */
if (tf->tf_cr30 == fpu_curpcb) {
fpu_exit();
fpu_curpcb = 0;
}
if ((error = copyin((caddr_t)scp, (caddr_t)&ksc, sizeof ksc)))
return (error);
#define PSL_MBS (PSL_C|PSL_Q|PSL_P|PSL_D|PSL_I)
#define PSL_MBZ (PSL_Y|PSL_Z|PSL_S|PSL_X|PSL_M|PSL_R)
if ((ksc.sc_ps & (PSL_MBS|PSL_MBZ)) != PSL_MBS)
return (EINVAL);
if (ksc.sc_onstack)
p->p_sigacts->ps_sigstk.ss_flags |= SS_ONSTACK;
else
p->p_sigacts->ps_sigstk.ss_flags &= ~SS_ONSTACK;
p->p_sigmask = ksc.sc_mask &~ sigcantmask;
tf->tf_sar = ksc.sc_regs[0];
ksc.sc_regs[0] = tf->tf_flags;
bcopy(&ksc.sc_regs[0], tf, 32*8);
bcopy(ksc.sc_fpregs, p->p_addr->u_pcb.pcb_fpregs,
sizeof(ksc.sc_fpregs));
fdcache(HPPA_SID_KERNEL, (vaddr_t)p->p_addr->u_pcb.pcb_fpregs,
sizeof(ksc.sc_fpregs));
tf->tf_iioq[0] = ksc.sc_pcoqh;
tf->tf_iioq[1] = ksc.sc_pcoqt;
tf->tf_ipsw = ksc.sc_ps;
#ifdef DEBUG
if ((sigdebug & SDB_FOLLOW) && (!sigpid || p->p_pid == sigpid))
printf("sigreturn(%d): returns\n", p->p_pid);
#endif
return (EJUSTRETURN);
}
/*
* machine dependent system variables.
*/
int
cpu_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p)
int *name;
u_int namelen;
void *oldp;
size_t *oldlenp;
void *newp;
size_t newlen;
struct proc *p;
{
dev_t consdev;
/* all sysctl names at this level are terminal */
if (namelen != 1)
return (ENOTDIR); /* overloaded */
switch (name[0]) {
case CPU_CONSDEV:
if (cn_tab != NULL)
consdev = cn_tab->cn_dev;
else
consdev = NODEV;
return (sysctl_rdstruct(oldp, oldlenp, newp, &consdev,
sizeof consdev));
default:
return (EOPNOTSUPP);
}
/* NOTREACHED */
}
/*
* consinit:
* initialize the system console.
*/
void
consinit(void)
{
static int initted;
if (!initted) {
initted++;
cninit();
}
}
#ifdef DIAGNOSTIC
void
splassert_check(int wantipl, const char *func)
{
extern int cpl; /* from locoore.s */
if (cpl < wantipl) {
splassert_fail(wantipl, cpl, func);
}
}
#endif
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