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Allow platform modules to set the size of large pizes, as potentially

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discovered from firmware, and better handle highly-discontiguous memory
and CPU maps.

MFC after:	3 weeks
This commit is contained in:
Nathan Whitehorn 2017-11-25 22:13:19 +00:00
parent 312fb3d8dd
commit 5bcc3e4277
1 changed files with 7 additions and 5 deletions
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12
sys/powerpc/aim/mmu_oea64.c
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@ -572,8 +572,10 @@ moea64_probe_large_page(void)
/* FALLTHROUGH */
default:
moea64_large_page_size = 0x1000000; /* 16 MB */
moea64_large_page_shift = 24;
if (moea64_large_page_size == 0) {
moea64_large_page_size = 0x1000000; /* 16 MB */
moea64_large_page_shift = 24;
}
}
moea64_large_page_mask = moea64_large_page_size - 1;
@ -873,9 +875,9 @@ moea64_late_bootstrap(mmu_t mmup, vm_offset_t kernelstart, vm_offset_t kernelend
/*
* Calculate the last available physical address.
*/
Maxmem = 0;
for (i = 0; phys_avail[i + 2] != 0; i += 2)
;
Maxmem = powerpc_btop(phys_avail[i + 1]);
Maxmem = max(Maxmem, powerpc_btop(phys_avail[i + 1]));
/*
* Initialize MMU and remap early physical mappings
@ -956,7 +958,7 @@ moea64_late_bootstrap(mmu_t mmup, vm_offset_t kernelstart, vm_offset_t kernelend
pa += PAGE_SIZE;
va += PAGE_SIZE;
}
dpcpu_init(dpcpu, 0);
dpcpu_init(dpcpu, curcpu);
/*
* Allocate some things for page zeroing. We put this directly