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MFi386: revision 1.615 (change kernel crashdump format to ELF).

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Approved by:	re (scottl)
This commit is contained in:
nyan 2005-06-30 15:26:03 +00:00
parent 9149713184
commit b2cdc9829c
1 changed files with 38 additions and 20 deletions
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58
sys/pc98/pc98/machdep.c
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@ -191,9 +191,11 @@ long Maxmem = 0;
long realmem = 0;
vm_paddr_t phys_avail[10];
vm_paddr_t dump_avail[10];
/* must be 2 less so 0 0 can signal end of chunks */
#define PHYS_AVAIL_ARRAY_END ((sizeof(phys_avail) / sizeof(vm_offset_t)) - 2)
#define PHYS_AVAIL_ARRAY_END ((sizeof(phys_avail) / sizeof(phys_avail[0])) - 2)
#define DUMP_AVAIL_ARRAY_END ((sizeof(dump_avail) / sizeof(dump_avail[0])) - 2)
struct kva_md_info kmi;
@ -1617,13 +1619,16 @@ sdtossd(sd, ssd)
static void
getmemsize(int first)
{
int i, physmap_idx, pa_indx, pg_n;
int i, physmap_idx, pa_indx, da_indx;
int pg_n;
u_long physmem_tunable;
u_int extmem, under16;
vm_offset_t pa, physmap[PHYSMAP_SIZE];
vm_paddr_t pa, physmap[PHYSMAP_SIZE];
pt_entry_t *pte;
quad_t dcons_addr, dcons_size;
bzero(physmap, sizeof(physmap));
/* XXX - some of EPSON machines can't use PG_N */
pg_n = PG_N;
if (pc98_machine_type & M_EPSON_PC98) {
@ -1638,7 +1643,6 @@ getmemsize(int first)
break;
}
}
bzero(physmap, sizeof(physmap));
/*
* Perform "base memory" related probes & setup
@ -1745,8 +1749,10 @@ getmemsize(int first)
*/
physmap[0] = PAGE_SIZE; /* mask off page 0 */
pa_indx = 0;
da_indx = 1;
phys_avail[pa_indx++] = physmap[0];
phys_avail[pa_indx] = physmap[0];
dump_avail[da_indx] = physmap[0];
pte = CMAP1;
/*
@ -1767,14 +1773,15 @@ getmemsize(int first)
if (physmap[i + 1] < end)
end = trunc_page(physmap[i + 1]);
for (pa = round_page(physmap[i]); pa < end; pa += PAGE_SIZE) {
int tmp, page_bad;
int tmp, page_bad, full;
int *ptr = (int *)CADDR1;
full = FALSE;
/*
* block out kernel memory as not available.
*/
if (pa >= KERNLOAD && pa < first)
continue;
goto do_dump_avail;
/*
* block out dcons buffer
@ -1782,7 +1789,7 @@ getmemsize(int first)
if (dcons_addr > 0
&& pa >= trunc_page(dcons_addr)
&& pa < dcons_addr + dcons_size)
continue;
goto do_dump_avail;
page_bad = FALSE;
@ -1797,30 +1804,26 @@ getmemsize(int first)
* Test for alternating 1's and 0's
*/
*(volatile int *)ptr = 0xaaaaaaaa;
if (*(volatile int *)ptr != 0xaaaaaaaa) {
if (*(volatile int *)ptr != 0xaaaaaaaa)
page_bad = TRUE;
}
/*
* Test for alternating 0's and 1's
*/
*(volatile int *)ptr = 0x55555555;
if (*(volatile int *)ptr != 0x55555555) {
page_bad = TRUE;
}
if (*(volatile int *)ptr != 0x55555555)
page_bad = TRUE;
/*
* Test for all 1's
*/
*(volatile int *)ptr = 0xffffffff;
if (*(volatile int *)ptr != 0xffffffff) {
if (*(volatile int *)ptr != 0xffffffff)
page_bad = TRUE;
}
/*
* Test for all 0's
*/
*(volatile int *)ptr = 0x0;
if (*(volatile int *)ptr != 0x0) {
if (*(volatile int *)ptr != 0x0)
page_bad = TRUE;
}
/*
* Restore original value.
*/
@ -1829,9 +1832,8 @@ getmemsize(int first)
/*
* Adjust array of valid/good pages.
*/
if (page_bad == TRUE) {
if (page_bad == TRUE)
continue;
}
/*
* If this good page is a continuation of the
* previous set of good pages, then just increase
@ -1851,12 +1853,28 @@ getmemsize(int first)
printf(
"Too many holes in the physical address space, giving up\n");
pa_indx--;
break;
full = TRUE;
goto do_dump_avail;
}
phys_avail[pa_indx++] = pa; /* start */
phys_avail[pa_indx] = pa + PAGE_SIZE; /* end */
phys_avail[pa_indx] = pa + PAGE_SIZE; /* end */
}
physmem++;
do_dump_avail:
if (dump_avail[da_indx] == pa) {
dump_avail[da_indx] += PAGE_SIZE;
} else {
da_indx++;
if (da_indx == DUMP_AVAIL_ARRAY_END) {
da_indx--;
goto do_next;
}
dump_avail[da_indx++] = pa; /* start */
dump_avail[da_indx] = pa + PAGE_SIZE; /* end */
}
do_next:
if (full)
break;
}
}
*pte = 0;