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Just use PAGE_SHIFT from <machine/vmparam.h> instead of going through 

hoops to read and cache the value from the crash dump header.
This commit is contained in:
nathanw 2003-04-09 22:46:39 +00:00
parent 9c04149fde
commit cc1db07645
1 changed files with 4 additions and 33 deletions
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37
lib/libkvm/kvm_alpha.c
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@ -1,4 +1,4 @@
/* $NetBSD: kvm_alpha.c,v 1.20 2001/08/05 17:51:40 matt Exp $ */
/* $NetBSD: kvm_alpha.c,v 1.21 2003/04/09 22:46:39 nathanw Exp $ */
/*
* Copyright (c) 1994, 1995 Carnegie-Mellon University.
@ -49,42 +49,19 @@
#include "kvm_private.h"
struct vmstate {
vsize_t page_shift;
};
/*ARGSUSED*/
void
_kvm_freevtop(kd)
kvm_t *kd;
{
if (kd->vmst != 0)
free(kd->vmst);
return;
}
/*ARGSUSED*/
int
_kvm_initvtop(kd)
kvm_t *kd;
{
cpu_kcore_hdr_t *cpu_kh;
struct vmstate *vm;
vm = (struct vmstate *)_kvm_malloc(kd, sizeof(*vm));
if (vm == NULL)
return (-1);
cpu_kh = kd->cpu_data;
/* Compute page_shift. */
for (vm->page_shift = 0; (1L << vm->page_shift) < cpu_kh->page_size;
vm->page_shift++)
/* nothing */ ;
if ((1L << vm->page_shift) != cpu_kh->page_size) {
free(vm);
return (-1);
}
kd->vmst = vm;
return (0);
}
@ -95,7 +72,6 @@ _kvm_kvatop(kd, va, pa)
u_long *pa;
{
cpu_kcore_hdr_t *cpu_kh;
struct vmstate *vm;
alpha_pt_entry_t pte;
u_long pteoff, page_off;
int rv;
@ -106,11 +82,8 @@ _kvm_kvatop(kd, va, pa)
}
cpu_kh = kd->cpu_data;
vm = kd->vmst;
page_off = va & (cpu_kh->page_size - 1);
#define PAGE_SHIFT vm->page_shift
if (va >= ALPHA_K0SEG_BASE && va <= ALPHA_K0SEG_END) {
/*
* Direct-mapped address: just convert it.
@ -176,8 +149,6 @@ lose:
rv = 0;
}
#undef PAGE_SHIFT
return (rv);
}