X-Git-Url: https://git.subgeniuskitty.com/unix-history/.git/blobdiff_plain/f86df66c1575304c08a6fd0716bcfdba12f5d593..934e4ecf9018991ee10ed5a0a6116db88acb7c42:/usr/src/sys/kern/init_main.c

diff --git a/usr/src/sys/kern/init_main.c b/usr/src/sys/kern/init_main.c
index 570b58a16e..a3f5660df9 100644
--- a/usr/src/sys/kern/init_main.c
+++ b/usr/src/sys/kern/init_main.c
@@ -1,4 +1,4 @@
-/*	init_main.c	3.5	%G%	*/
+/*	init_main.c	4.2	%G%	*/
 
 #include "../h/param.h"
 #include "../h/systm.h"
@@ -17,6 +17,8 @@
 #include "../h/clock.h"
 #include "../h/vm.h"
 #include "../h/cmap.h"
+#include "../h/text.h"
+#include "../h/vlimit.h"
 
 /*
  * Initialization code.
@@ -37,6 +39,7 @@
  */
 main(firstaddr)
 {
+	register int i;
 
 	cpusid = mfpr(SID);		/* get system identification */
 #ifdef FASTVAX
@@ -58,6 +61,19 @@ main(firstaddr)
 	proc[0].p_nice = NZERO;
 	u.u_procp = &proc[0];
 	u.u_cmask = CMASK;
+	for (i = 1; i < sizeof(u.u_limit)/sizeof(u.u_limit[0]); i++)
+		switch (i) {
+
+		case LIM_STACK:
+			u.u_limit[i] = 512*1024;
+			continue;
+		case LIM_DATA:
+			u.u_limit[i] = ctob(MAXDSIZ);
+			continue;
+		default:
+			u.u_limit[i] = INFINITY;
+			continue;
+		}
 	clkstart();
 
 	/*
@@ -105,6 +121,7 @@ main(firstaddr)
 	proc[0].p_szpt = CLSIZE;
 	if (newproc(0)) {
 		expand(clrnd((int)btoc(szicode)), P0BR);
+		(void) swpexpand(u.u_dsize, 0, &u.u_dmap, &u.u_smap);
 		(void) copyout((caddr_t)icode, (caddr_t)0, (unsigned)szicode);
 		/*
 		 * Return goes to loc. 0 of user init
@@ -130,7 +147,6 @@ iinit()
 {
 	register struct buf *cp, *bp;
 	register struct filsys *fp;
-	register unsigned i, j;
 
 	(*bdevsw[major(rootdev)].d_open)(rootdev, 1);
 	bp = bread(rootdev, SUPERB);
@@ -147,13 +163,7 @@ iinit()
 	fp->s_ronly = 0;
 	fp->s_lasti = 1;
 	fp->s_nbehind = 0;
-	/* on boot, read VAX TODR register (GMT 10 ms.
-	*	clicks into current year) and set software time
-	*	in 'int time' (GMT seconds since year YRREF)
-	*/
-	for (i = 0 , j = YRREF ; j < YRCURR ; j++)
-		i += (SECYR + (j%4?0:SECDAY)) ;
-	time = udiv(mfpr(TODR),100) + i ;
+	clkinit(fp->s_time);
 	bootime = time;
 }
 
@@ -164,14 +174,15 @@ iinit()
  * as arguments to the I/O routines to describe
  * I/O to be done-- e.g. swap headers swbuf[] for
  * swapping.
+ *
+ * These are actually allocated kernel map slots and space is
+ * allocated in locore.s for them.
  */
 char	buffers[NBUF][BSIZE];
 
 /*
  * Initialize the buffer I/O system by freeing
  * all buffers and setting all device buffer lists to empty.
- *
- * SHOULD USE MEMALL HERE!!!
  */
 binit()
 {
@@ -179,6 +190,7 @@ binit()
 	register struct buf *dp;
 	register int i;
 	struct bdevsw *bdp;
+	struct swdevt *swp;
 
 	bfreelist.b_forw = bfreelist.b_back =
 	    bfreelist.av_forw = bfreelist.av_back = &bfreelist;
@@ -201,6 +213,19 @@ binit()
 		}
 		nblkdev++;
 	}
+	/*
+	 * Count swap devices, and adjust total swap space available.
+	 * Some of this space will not be available until a vswapon()
+	 * system is issued, usually when the system goes multi-user.
+	 */
+	nswdev = 0;
+	for (swp = swdevt; swp->sw_dev; swp++)
+		nswdev++;
+	if (nswdev == 0)
+		panic("binit");
+	nswap *= nswdev;
+	maxpgio *= nswdev;
+	swfree(0);
 }
 
 /*