~kris/9p

9hist

ref: 725df887ee04f36f44a028091facf2cc698135fa 9hist/mtx/mmu.c -rw-r--r-- 712 bytes
725df887 — David du Colombier Plan 9 from Bell Labs 2001-12-07 24 years ago
                                                                                
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#include	"u.h"
#include	"../port/lib.h"
#include	"mem.h"
#include	"dat.h"
#include	"fns.h"
#include	"io.h"

#define TLBINVLAID	KZERO

void
mmuinit(void)
{
	int i;

	print("mmuinit\n");
}

void
flushmmu(void)
{
	int x;

if(0)print("flushmmu(%ld)\n", up->pid);
	x = splhi();
	up->newtlb = 1;
	mmuswitch(up);
	splx(x);
}

/*
 * called with splhi
 */
void
mmuswitch(Proc *p)
{
	int tp;

if(0)print("mmuswitch()\n");
	if(p->newtlb) {
		memset(p->pidonmach, 0, sizeof p->pidonmach);
		p->newtlb = 0;
	}
	tp = p->pidonmach[m->machno];
//	putcasid(tp);
}

void
mmurelease(Proc* p)
{
if(0)print("mmurelease(%ld)\n", p->pid);
	memset(p->pidonmach, 0, sizeof p->pidonmach);
}

void
putmmu(ulong va, ulong pa, Page *pg)
{
}