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Remove some old, unused, major UGLY code.

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This commit is contained in:
David Greenman 1994-01-21 17:11:38 +00:00
parent 2ae37484c6
commit df8d467a49
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=991
2 changed files with 2 additions and 186 deletions
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94
sys/amd64/amd64/vm_machdep.c
View File

@ -37,7 +37,7 @@
*
* from: @(#)vm_machdep.c 7.3 (Berkeley) 5/13/91
* Utah $Hdr: vm_machdep.c 1.16.1.1 89/06/23$
* $Id: vm_machdep.c,v 1.8 1993/12/19 00:50:10 wollman Exp $
* $Id: vm_machdep.c,v 1.9 1994/01/14 16:23:42 davidg Exp $
*/
#include "npx.h"
@ -252,98 +252,6 @@ kvtop(void *addr)
return((int)va);
}
#ifdef notdef
/*
* The probe[rw] routines should probably be redone in assembler
* for efficiency.
*/
prober(addr)
register u_int addr;
{
register int page;
register struct proc *p;
if (addr >= USRSTACK)
return(0);
p = u.u_procp;
page = btop(addr);
if (page < dptov(p, p->p_dsize) || page > sptov(p, p->p_ssize))
return(1);
return(0);
}
probew(addr)
register u_int addr;
{
register int page;
register struct proc *p;
if (addr >= USRSTACK)
return(0);
p = u.u_procp;
page = btop(addr);
if (page < dptov(p, p->p_dsize) || page > sptov(p, p->p_ssize))
return((*(int *)vtopte(p, page) & PG_PROT) == PG_UW);
return(0);
}
/*
* NB: assumes a physically contiguous kernel page table
* (makes life a LOT simpler).
*/
int
kernacc(addr, count, rw)
register u_int addr;
int count, rw;
{
register struct pde *pde;
register struct pte *pte;
register int ix, cnt;
extern long Syssize;
if (count <= 0)
return(0);
pde = (struct pde *)((u_int)u.u_procp->p_p0br + u.u_procp->p_szpt * NBPG);
ix = (addr & PD_MASK) >> PD_SHIFT;
cnt = ((addr + count + (1 << PD_SHIFT) - 1) & PD_MASK) >> PD_SHIFT;
cnt -= ix;
for (pde += ix; cnt; cnt--, pde++)
if (pde->pd_v == 0)
return(0);
ix = btop(addr-KERNBASE);
cnt = btop(addr-KERNBASE+count+NBPG-1);
if (cnt > (int)&Syssize)
return(0);
cnt -= ix;
for (pte = &Sysmap[ix]; cnt; cnt--, pte++)
if (pte->pg_v == 0 /*|| (rw == B_WRITE && pte->pg_prot == 1)*/)
return(0);
return(1);
}
int
useracc(addr, count, rw)
register u_int addr;
int count, rw;
{
register int (*func)();
register u_int addr2;
extern int prober(), probew();
if (count <= 0)
return(0);
addr2 = addr;
addr += count;
func = (rw == B_READ) ? prober : probew;
do {
if ((*func)(addr2) == 0)
return(0);
addr2 = (addr2 + NBPG) & ~PGOFSET;
} while (addr2 < addr);
return(1);
}
#endif
extern vm_map_t phys_map;
/*

94
sys/i386/i386/vm_machdep.c
View File

@ -37,7 +37,7 @@
*
* from: @(#)vm_machdep.c 7.3 (Berkeley) 5/13/91
* Utah $Hdr: vm_machdep.c 1.16.1.1 89/06/23$
* $Id: vm_machdep.c,v 1.8 1993/12/19 00:50:10 wollman Exp $
* $Id: vm_machdep.c,v 1.9 1994/01/14 16:23:42 davidg Exp $
*/
#include "npx.h"
@ -252,98 +252,6 @@ kvtop(void *addr)
return((int)va);
}
#ifdef notdef
/*
* The probe[rw] routines should probably be redone in assembler
* for efficiency.
*/
prober(addr)
register u_int addr;
{
register int page;
register struct proc *p;
if (addr >= USRSTACK)
return(0);
p = u.u_procp;
page = btop(addr);
if (page < dptov(p, p->p_dsize) || page > sptov(p, p->p_ssize))
return(1);
return(0);
}
probew(addr)
register u_int addr;
{
register int page;
register struct proc *p;
if (addr >= USRSTACK)
return(0);
p = u.u_procp;
page = btop(addr);
if (page < dptov(p, p->p_dsize) || page > sptov(p, p->p_ssize))
return((*(int *)vtopte(p, page) & PG_PROT) == PG_UW);
return(0);
}
/*
* NB: assumes a physically contiguous kernel page table
* (makes life a LOT simpler).
*/
int
kernacc(addr, count, rw)
register u_int addr;
int count, rw;
{
register struct pde *pde;
register struct pte *pte;
register int ix, cnt;
extern long Syssize;
if (count <= 0)
return(0);
pde = (struct pde *)((u_int)u.u_procp->p_p0br + u.u_procp->p_szpt * NBPG);
ix = (addr & PD_MASK) >> PD_SHIFT;
cnt = ((addr + count + (1 << PD_SHIFT) - 1) & PD_MASK) >> PD_SHIFT;
cnt -= ix;
for (pde += ix; cnt; cnt--, pde++)
if (pde->pd_v == 0)
return(0);
ix = btop(addr-KERNBASE);
cnt = btop(addr-KERNBASE+count+NBPG-1);
if (cnt > (int)&Syssize)
return(0);
cnt -= ix;
for (pte = &Sysmap[ix]; cnt; cnt--, pte++)
if (pte->pg_v == 0 /*|| (rw == B_WRITE && pte->pg_prot == 1)*/)
return(0);
return(1);
}
int
useracc(addr, count, rw)
register u_int addr;
int count, rw;
{
register int (*func)();
register u_int addr2;
extern int prober(), probew();
if (count <= 0)
return(0);
addr2 = addr;
addr += count;
func = (rw == B_READ) ? prober : probew;
do {
if ((*func)(addr2) == 0)
return(0);
addr2 = (addr2 + NBPG) & ~PGOFSET;
} while (addr2 < addr);
return(1);
}
#endif
extern vm_map_t phys_map;
/*