mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-20 11:11:24 +00:00
Added four pattern memory test routine that is done at startup.
This commit is contained in:
David Greenman
parent
6405a87b09
commit
8f64d25d15
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=1055
@ -34,7 +34,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)autoconf.c 7.1 (Berkeley) 5/9/91
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* $Id: autoconf.c,v 1.6 1993/12/19 00:49:57 wollman Exp $
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* $Id: autoconf.c,v 1.7 1994/01/16 02:21:56 martin Exp $
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*/
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/*
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@ -104,7 +104,7 @@ swapconf()
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{
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register struct swdevt *swp;
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register int nblks;
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extern int Maxmem;
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extern int Maxmem;
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for (swp = swdevt; swp->sw_dev > 0; swp++)
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{
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@ -122,7 +122,6 @@ extern int Maxmem;
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swp->sw_nblks = ctod(dtoc(swp->sw_nblks));
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}
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if (dumplo == 0 && bdevsw[major(dumpdev)].d_psize)
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/*dumplo = (*bdevsw[major(dumpdev)].d_psize)(dumpdev) - physmem;*/
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dumplo = (*bdevsw[major(dumpdev)].d_psize)(dumpdev) -
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Maxmem*NBPG/512;
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if (dumplo < 0)
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@ -35,7 +35,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)machdep.c 7.4 (Berkeley) 6/3/91
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* $Id: machdep.c,v 1.30 1994/01/31 04:18:32 davidg Exp $
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* $Id: machdep.c,v 1.31 1994/01/31 10:26:55 davidg Exp $
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*/
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#include "npx.h"
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@ -93,6 +93,7 @@ extern vm_offset_t avail_start, avail_end;
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static void identifycpu(void);
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static void initcpu(void);
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static int test_page(int *, int);
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#ifndef PANIC_REBOOT_WAIT_TIME
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#define PANIC_REBOOT_WAIT_TIME 15 /* default to 15 seconds */
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@ -119,9 +120,8 @@ int _udatasel, _ucodesel;
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/*
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* Machine-dependent startup code
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*/
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int boothowto = 0, Maxmem = 0;
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int boothowto = 0, Maxmem = 0, maxmem = 0, badpages = 0, physmem = 0;
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long dumplo;
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int physmem, maxmem;
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extern int bootdev;
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#ifdef SMALL
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extern int forcemaxmem;
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@ -154,7 +154,7 @@ cpu_startup()
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* Initialize error message buffer (at end of core).
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*/
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/* avail_end was pre-decremented in pmap_bootstrap to compensate */
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/* avail_end was pre-decremented in init_386() to compensate */
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for (i = 0; i < btoc(sizeof (struct msgbuf)); i++)
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pmap_enter(pmap_kernel(), (vm_offset_t)msgbufp,
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avail_end + i * NBPG,
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@ -166,7 +166,9 @@ cpu_startup()
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*/
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printf(version);
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identifycpu();
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printf("real mem = %d\n", ctob(physmem));
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printf("real memory = %d (%d pages)\n", ptoa(physmem), physmem);
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if (badpages)
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printf("bad memory = %d (%d pages)\n", ptoa(badpages), badpages);
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/*
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* Allocate space for system data structures.
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@ -284,7 +286,7 @@ cpu_startup()
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for (i = 1; i < ncallout; i++)
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callout[i-1].c_next = &callout[i];
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printf("avail mem = %d\n", ptoa(vm_page_free_count));
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printf("avail memory = %d (%d pages)\n", ptoa(vm_page_free_count), vm_page_free_count);
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printf("using %d buffers containing %d bytes of memory\n",
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nbuf, bufpages * CLBYTES);
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@ -673,7 +675,7 @@ dumpsys()
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return;
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if ((minor(dumpdev)&07) != 1)
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return;
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dumpsize = physmem;
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dumpsize = Maxmem;
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printf("\ndumping to dev %x, offset %d\n", dumpdev, dumplo);
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printf("dump ");
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switch ((*bdevsw[major(dumpdev)].d_dump)(dumpdev)) {
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@ -961,7 +963,7 @@ init386(first)
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/* table descriptors - used to load tables by microp */
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struct region_descriptor r_gdt, r_idt;
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int pagesinbase, pagesinext;
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int target_page;
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proc0.p_addr = proc0paddr;
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@ -1106,28 +1108,84 @@ init386(first)
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* Maxmem isn't the "maximum memory", it's the highest page of
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* of the physical address space. It should be "Maxphyspage".
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*/
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Maxmem = pagesinext + 0x100000/NBPG;
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Maxmem = pagesinext + 0x100000/PAGE_SIZE;
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#ifdef MAXMEM
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if (MAXMEM/4 < Maxmem)
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Maxmem = MAXMEM/4;
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#endif
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maxmem = Maxmem - 1; /* highest page of usable memory */
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physmem = maxmem; /* number of pages of physmem addr space */
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if (Maxmem < 2048/4) {
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panic("Too little memory (2MB required)");
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/* NOT REACHED */
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}
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physmem = pagesinbase + pagesinext;
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/* call pmap initialization to make new kernel address space */
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pmap_bootstrap (first, 0);
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/*
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* Do simple memory test over range of extended memory that BIOS
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* indicates exists. Adjust Maxmem to the highest page of
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* good memory.
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*/
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printf("Testing memory (%dMB)...", ptoa(Maxmem)/1024/1024);
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for (target_page = Maxmem - 1; target_page >= atop(first); target_page--) {
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extern struct pte *CMAP1;
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extern caddr_t CADDR1;
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/*
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* map page into kernel: valid, read/write, non-cacheable
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*/
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*(int *)CMAP1 = PG_V | PG_KW | PG_N | ptoa(target_page);
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tlbflush();
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/*
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* Test for alternating 1's and 0's
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*/
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filli(0xaaaaaaaa, CADDR1, PAGE_SIZE/sizeof(int));
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if (test_page((int *)CADDR1, 0xaaaaaaaa)) {
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Maxmem = target_page;
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badpages++;
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continue;
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}
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/*
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* Test for alternating 0's and 1's
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*/
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filli(0x55555555, CADDR1, PAGE_SIZE/sizeof(int));
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if (test_page((int *)CADDR1, 0x55555555)) {
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Maxmem = target_page;
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badpages++;
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continue;
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}
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/*
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* Test for all 1's
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*/
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filli(0xffffffff, CADDR1, PAGE_SIZE/sizeof(int));
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if (test_page((int *)CADDR1, 0xffffffff)) {
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Maxmem = target_page;
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badpages++;
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continue;
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}
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/*
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* Test zeroing of page
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*/
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bzero(CADDR1, PAGE_SIZE);
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if (test_page((int *)CADDR1, 0)) {
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/*
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* test of page failed
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*/
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Maxmem = target_page;
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badpages++;
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continue;
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}
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}
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printf("done.\n");
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maxmem = Maxmem - 1; /* highest page of usable memory */
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avail_end = (maxmem << PAGE_SHIFT) - i386_round_page(sizeof(struct msgbuf));
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/*
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* Initialize pointers to the two chunks of memory; for use
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* later in vm_page_startup.
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*/
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/* avail_start and avail_end are initialized in pmap_bootstrap */
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/* avail_start is initialized in pmap_bootstrap */
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x = 0;
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if (pagesinbase > 1) {
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phys_avail[x++] = NBPG; /* skip first page of memory */
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@ -1173,6 +1231,20 @@ init386(first)
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proc0.p_addr->u_pcb.pcb_ptd = IdlePTD;
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}
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int
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test_page(address, pattern)
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int *address;
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int pattern;
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{
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int *x;
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for (x = address; x < (int *)((char *)address + PAGE_SIZE); x++) {
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if (*x != pattern)
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return (1);
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}
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return(0);
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}
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/*aston() {
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schednetisr(NETISR_AST);
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}*/
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@ -35,7 +35,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)pmap.c 7.7 (Berkeley) 5/12/91
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* $Id: pmap.c,v 1.14 1994/01/27 03:35:42 davidg Exp $
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* $Id: pmap.c,v 1.15 1994/01/31 04:18:37 davidg Exp $
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*/
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/*
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@ -371,16 +371,10 @@ pmap_bootstrap(firstaddr, loadaddr)
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vm_offset_t va;
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struct pte *pte;
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#endif
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extern vm_offset_t maxmem, physmem;
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extern int IdlePTD;
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extern int IdlePTD;
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avail_start = firstaddr + DMAPAGES*NBPG;
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avail_end = maxmem << PG_SHIFT;
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/* XXX: allow for msgbuf */
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avail_end -= i386_round_page(sizeof(struct msgbuf));
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mem_size = physmem << PG_SHIFT;
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virtual_avail = (vm_offset_t) KERNBASE + avail_start;
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virtual_end = VM_MAX_KERNEL_ADDRESS;
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i386pagesperpage = PAGE_SIZE / NBPG;
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@ -30,7 +30,7 @@
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: support.s,v 1.1 1993/11/13 02:25:05 davidg Exp $
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* $Id: support.s,v 1.2 1994/01/14 16:23:39 davidg Exp $
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*/
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#include "assym.s" /* system definitions */
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@ -184,6 +184,19 @@ ENTRY(fillw)
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popl %edi
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ret
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/* filli(pat, base, cnt) */
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ENTRY(filli)
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filli:
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pushl %edi
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movl 8(%esp),%eax
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movl 12(%esp),%edi
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movl 16(%esp),%ecx
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cld
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rep
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stosl
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popl %edi
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ret
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ENTRY(bcopyb)
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bcopyb:
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pushl %esi
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@ -30,7 +30,7 @@
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: support.s,v 1.1 1993/11/13 02:25:05 davidg Exp $
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* $Id: support.s,v 1.2 1994/01/14 16:23:39 davidg Exp $
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*/
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#include "assym.s" /* system definitions */
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@ -184,6 +184,19 @@ ENTRY(fillw)
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popl %edi
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ret
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/* filli(pat, base, cnt) */
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ENTRY(filli)
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filli:
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pushl %edi
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movl 8(%esp),%eax
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movl 12(%esp),%edi
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movl 16(%esp),%ecx
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cld
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rep
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stosl
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popl %edi
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ret
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ENTRY(bcopyb)
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bcopyb:
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pushl %esi
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@ -34,7 +34,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)autoconf.c 7.1 (Berkeley) 5/9/91
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* $Id: autoconf.c,v 1.6 1993/12/19 00:49:57 wollman Exp $
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* $Id: autoconf.c,v 1.7 1994/01/16 02:21:56 martin Exp $
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*/
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/*
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@ -104,7 +104,7 @@ swapconf()
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{
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register struct swdevt *swp;
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register int nblks;
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extern int Maxmem;
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extern int Maxmem;
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for (swp = swdevt; swp->sw_dev > 0; swp++)
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{
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@ -122,7 +122,6 @@ extern int Maxmem;
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swp->sw_nblks = ctod(dtoc(swp->sw_nblks));
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}
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if (dumplo == 0 && bdevsw[major(dumpdev)].d_psize)
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/*dumplo = (*bdevsw[major(dumpdev)].d_psize)(dumpdev) - physmem;*/
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dumplo = (*bdevsw[major(dumpdev)].d_psize)(dumpdev) -
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Maxmem*NBPG/512;
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if (dumplo < 0)
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@ -35,7 +35,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)machdep.c 7.4 (Berkeley) 6/3/91
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* $Id: machdep.c,v 1.30 1994/01/31 04:18:32 davidg Exp $
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* $Id: machdep.c,v 1.31 1994/01/31 10:26:55 davidg Exp $
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*/
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#include "npx.h"
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@ -93,6 +93,7 @@ extern vm_offset_t avail_start, avail_end;
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static void identifycpu(void);
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static void initcpu(void);
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static int test_page(int *, int);
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#ifndef PANIC_REBOOT_WAIT_TIME
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#define PANIC_REBOOT_WAIT_TIME 15 /* default to 15 seconds */
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@ -119,9 +120,8 @@ int _udatasel, _ucodesel;
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/*
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* Machine-dependent startup code
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*/
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int boothowto = 0, Maxmem = 0;
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int boothowto = 0, Maxmem = 0, maxmem = 0, badpages = 0, physmem = 0;
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long dumplo;
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int physmem, maxmem;
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extern int bootdev;
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#ifdef SMALL
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extern int forcemaxmem;
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@ -154,7 +154,7 @@ cpu_startup()
|
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* Initialize error message buffer (at end of core).
|
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*/
|
||||
|
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/* avail_end was pre-decremented in pmap_bootstrap to compensate */
|
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/* avail_end was pre-decremented in init_386() to compensate */
|
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for (i = 0; i < btoc(sizeof (struct msgbuf)); i++)
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pmap_enter(pmap_kernel(), (vm_offset_t)msgbufp,
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avail_end + i * NBPG,
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@ -166,7 +166,9 @@ cpu_startup()
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*/
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printf(version);
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identifycpu();
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printf("real mem = %d\n", ctob(physmem));
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printf("real memory = %d (%d pages)\n", ptoa(physmem), physmem);
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if (badpages)
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printf("bad memory = %d (%d pages)\n", ptoa(badpages), badpages);
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|
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/*
|
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* Allocate space for system data structures.
|
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@ -284,7 +286,7 @@ cpu_startup()
|
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for (i = 1; i < ncallout; i++)
|
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callout[i-1].c_next = &callout[i];
|
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|
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printf("avail mem = %d\n", ptoa(vm_page_free_count));
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printf("avail memory = %d (%d pages)\n", ptoa(vm_page_free_count), vm_page_free_count);
|
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printf("using %d buffers containing %d bytes of memory\n",
|
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nbuf, bufpages * CLBYTES);
|
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|
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@ -673,7 +675,7 @@ dumpsys()
|
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return;
|
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if ((minor(dumpdev)&07) != 1)
|
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return;
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dumpsize = physmem;
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dumpsize = Maxmem;
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printf("\ndumping to dev %x, offset %d\n", dumpdev, dumplo);
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printf("dump ");
|
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switch ((*bdevsw[major(dumpdev)].d_dump)(dumpdev)) {
|
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@ -961,7 +963,7 @@ init386(first)
|
||||
/* table descriptors - used to load tables by microp */
|
||||
struct region_descriptor r_gdt, r_idt;
|
||||
int pagesinbase, pagesinext;
|
||||
|
||||
int target_page;
|
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|
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proc0.p_addr = proc0paddr;
|
||||
|
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@ -1106,28 +1108,84 @@ init386(first)
|
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* Maxmem isn't the "maximum memory", it's the highest page of
|
||||
* of the physical address space. It should be "Maxphyspage".
|
||||
*/
|
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Maxmem = pagesinext + 0x100000/NBPG;
|
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Maxmem = pagesinext + 0x100000/PAGE_SIZE;
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|
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#ifdef MAXMEM
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if (MAXMEM/4 < Maxmem)
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Maxmem = MAXMEM/4;
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#endif
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maxmem = Maxmem - 1; /* highest page of usable memory */
|
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physmem = maxmem; /* number of pages of physmem addr space */
|
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|
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if (Maxmem < 2048/4) {
|
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panic("Too little memory (2MB required)");
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/* NOT REACHED */
|
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}
|
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physmem = pagesinbase + pagesinext;
|
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|
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/* call pmap initialization to make new kernel address space */
|
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pmap_bootstrap (first, 0);
|
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|
||||
/*
|
||||
* Do simple memory test over range of extended memory that BIOS
|
||||
* indicates exists. Adjust Maxmem to the highest page of
|
||||
* good memory.
|
||||
*/
|
||||
printf("Testing memory (%dMB)...", ptoa(Maxmem)/1024/1024);
|
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|
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for (target_page = Maxmem - 1; target_page >= atop(first); target_page--) {
|
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extern struct pte *CMAP1;
|
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extern caddr_t CADDR1;
|
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|
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/*
|
||||
* map page into kernel: valid, read/write, non-cacheable
|
||||
*/
|
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*(int *)CMAP1 = PG_V | PG_KW | PG_N | ptoa(target_page);
|
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tlbflush();
|
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|
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/*
|
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* Test for alternating 1's and 0's
|
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*/
|
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filli(0xaaaaaaaa, CADDR1, PAGE_SIZE/sizeof(int));
|
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if (test_page((int *)CADDR1, 0xaaaaaaaa)) {
|
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Maxmem = target_page;
|
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badpages++;
|
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continue;
|
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}
|
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/*
|
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* Test for alternating 0's and 1's
|
||||
*/
|
||||
filli(0x55555555, CADDR1, PAGE_SIZE/sizeof(int));
|
||||
if (test_page((int *)CADDR1, 0x55555555)) {
|
||||
Maxmem = target_page;
|
||||
badpages++;
|
||||
continue;
|
||||
}
|
||||
/*
|
||||
* Test for all 1's
|
||||
*/
|
||||
filli(0xffffffff, CADDR1, PAGE_SIZE/sizeof(int));
|
||||
if (test_page((int *)CADDR1, 0xffffffff)) {
|
||||
Maxmem = target_page;
|
||||
badpages++;
|
||||
continue;
|
||||
}
|
||||
/*
|
||||
* Test zeroing of page
|
||||
*/
|
||||
bzero(CADDR1, PAGE_SIZE);
|
||||
if (test_page((int *)CADDR1, 0)) {
|
||||
/*
|
||||
* test of page failed
|
||||
*/
|
||||
Maxmem = target_page;
|
||||
badpages++;
|
||||
continue;
|
||||
}
|
||||
}
|
||||
printf("done.\n");
|
||||
|
||||
maxmem = Maxmem - 1; /* highest page of usable memory */
|
||||
avail_end = (maxmem << PAGE_SHIFT) - i386_round_page(sizeof(struct msgbuf));
|
||||
|
||||
/*
|
||||
* Initialize pointers to the two chunks of memory; for use
|
||||
* later in vm_page_startup.
|
||||
*/
|
||||
/* avail_start and avail_end are initialized in pmap_bootstrap */
|
||||
/* avail_start is initialized in pmap_bootstrap */
|
||||
x = 0;
|
||||
if (pagesinbase > 1) {
|
||||
phys_avail[x++] = NBPG; /* skip first page of memory */
|
||||
@ -1173,6 +1231,20 @@ init386(first)
|
||||
proc0.p_addr->u_pcb.pcb_ptd = IdlePTD;
|
||||
}
|
||||
|
||||
int
|
||||
test_page(address, pattern)
|
||||
int *address;
|
||||
int pattern;
|
||||
{
|
||||
int *x;
|
||||
|
||||
for (x = address; x < (int *)((char *)address + PAGE_SIZE); x++) {
|
||||
if (*x != pattern)
|
||||
return (1);
|
||||
}
|
||||
return(0);
|
||||
}
|
||||
|
||||
/*aston() {
|
||||
schednetisr(NETISR_AST);
|
||||
}*/
|
||||
|
||||
@ -35,7 +35,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* from: @(#)pmap.c 7.7 (Berkeley) 5/12/91
|
||||
* $Id: pmap.c,v 1.14 1994/01/27 03:35:42 davidg Exp $
|
||||
* $Id: pmap.c,v 1.15 1994/01/31 04:18:37 davidg Exp $
|
||||
*/
|
||||
|
||||
/*
|
||||
@ -371,16 +371,10 @@ pmap_bootstrap(firstaddr, loadaddr)
|
||||
vm_offset_t va;
|
||||
struct pte *pte;
|
||||
#endif
|
||||
extern vm_offset_t maxmem, physmem;
|
||||
extern int IdlePTD;
|
||||
extern int IdlePTD;
|
||||
|
||||
avail_start = firstaddr + DMAPAGES*NBPG;
|
||||
avail_end = maxmem << PG_SHIFT;
|
||||
|
||||
/* XXX: allow for msgbuf */
|
||||
avail_end -= i386_round_page(sizeof(struct msgbuf));
|
||||
|
||||
mem_size = physmem << PG_SHIFT;
|
||||
virtual_avail = (vm_offset_t) KERNBASE + avail_start;
|
||||
virtual_end = VM_MAX_KERNEL_ADDRESS;
|
||||
i386pagesperpage = PAGE_SIZE / NBPG;
|
||||
|
||||
@ -30,7 +30,7 @@
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* $Id: support.s,v 1.1 1993/11/13 02:25:05 davidg Exp $
|
||||
* $Id: support.s,v 1.2 1994/01/14 16:23:39 davidg Exp $
|
||||
*/
|
||||
|
||||
#include "assym.s" /* system definitions */
|
||||
@ -184,6 +184,19 @@ ENTRY(fillw)
|
||||
popl %edi
|
||||
ret
|
||||
|
||||
/* filli(pat, base, cnt) */
|
||||
ENTRY(filli)
|
||||
filli:
|
||||
pushl %edi
|
||||
movl 8(%esp),%eax
|
||||
movl 12(%esp),%edi
|
||||
movl 16(%esp),%ecx
|
||||
cld
|
||||
rep
|
||||
stosl
|
||||
popl %edi
|
||||
ret
|
||||
|
||||
ENTRY(bcopyb)
|
||||
bcopyb:
|
||||
pushl %esi
|
||||
|
||||
Loading…
Reference in New Issue
Block a user