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Set up proper cache colors.

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This commit is contained in:
eeh 2001-07-12 23:13:15 +00:00
parent 41a68e94a9
commit 8210f5a2f2
1 changed files with 39 additions and 7 deletions
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46
sys/arch/sparc64/sparc64/pmap.c
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@ -1,4 +1,4 @@
/* $NetBSD: pmap.c,v 1.102 2001/07/11 23:00:02 eeh Exp $ */
/* $NetBSD: pmap.c,v 1.103 2001/07/12 23:13:15 eeh Exp $ */
#undef NO_VCACHE /* Don't forget the locked TLB in dostart */
#define HWREF
/*
@ -534,6 +534,42 @@ pmap_bootdebug()
}
#endif
/*
* Calculate the correct number of page colors to use. This should be the
* size of the E$/NBPG. However, different CPUs can have different sized
* E$, so we need to take the GCM of the E$ size.
*/
static int pmap_calculate_colors __P((void));
static int
pmap_calculate_colors() {
int node = 0;
int size, assoc, color, maxcolor = 1;
char buf[80];
while ((node = OF_peer(node))) {
if ((OF_getprop(node, "device_type", buf, sizeof(buf)) > 0) &&
strcmp("cpu", buf) == 0) {
/* Found a CPU, get the E$ info. */
if (OF_getprop(node,"ecache-size", &size,
sizeof(size)) != sizeof(size)) {
printf("pmap_calculate_colors: node %x has "
"no ecache-size\n", node);
/* If we can't get the E$ size, skip the node */
continue;
}
if (OF_getprop(node, "ecache-associativity", &assoc,
sizeof(assoc)) != sizeof(assoc))
/* Fake asociativity of 1 */
assoc = 1;
color = size/assoc/NBPG;
if (color > maxcolor)
maxcolor = color;
}
}
return (maxcolor);
}
/*
* This is called during bootstrap, before the system is really initialized.
*
@ -582,7 +618,9 @@ pmap_bootstrap(kernelstart, kernelend, maxctx)
* set machine page size
*/
uvmexp.pagesize = NBPG;
uvmexp.ncolors = pmap_calculate_colors();
uvm_setpagesize();
/*
* Find out how big the kernel's virtual address
* space is. The *$#@$ prom loses this info
@ -786,7 +824,6 @@ remap_data:
OF_exit();
}
memsize = OF_getproplen(memh, "reg") + 2 * sizeof(struct mem_region);
printf("size for `memory' %x\n", (int)memsize);
valloc(mem, struct mem_region, memsize);
bzero((caddr_t)mem, memsize);
if (OF_getprop(memh, "reg", mem, memsize) <= 0) {
@ -824,7 +861,6 @@ printf("size for `memory' %x\n", (int)memsize);
* Save the prom translations
*/
sz = OF_getproplen(vmemh, "translations");
printf("size for `translations' %x\n", (int)sz);
valloc(prom_map, struct prom_map, sz);
if (OF_getprop(vmemh, "translations", (void*)prom_map, sz) <= 0) {
prom_printf("no translations installed?");
@ -985,7 +1021,6 @@ printf("size for `translations' %x\n", (int)sz);
* find out how much memory really is free.
*/
sz = OF_getproplen(memh, "available") + sizeof(struct mem_region);
printf("size for orig `available' %x\n", (int)sz);
valloc(orig, struct mem_region, sz);
bzero((caddr_t)orig, sz);
if (OF_getprop(memh, "available", orig, sz) <= 0) {
@ -1003,7 +1038,6 @@ printf("size for orig `available' %x\n", (int)sz);
prom_printf("End of available physical memory\r\n");
}
#endif
printf("size for new `available' %x\n", (int)sz);
valloc(avail, struct mem_region, sz);
bzero((caddr_t)avail, sz);
for (pcnt = 0, mp = orig, mp1 = avail; (mp1->size = mp->size);
@ -1016,7 +1050,6 @@ printf("size for new `available' %x\n", (int)sz);
* Allocate and initialize a context table
*/
numctx = maxctx;
printf("size for orig `ctxbusy' %x\n", (int)CTXSIZE);
valloc(ctxbusy, paddr_t, CTXSIZE);
bzero((caddr_t)ctxbusy, CTXSIZE);
@ -1040,7 +1073,6 @@ printf("size for orig `ctxbusy' %x\n", (int)CTXSIZE);
#endif
BDPRINTF(PDB_BOOT, ("frobbed i, firstaddr before TSB=%x, %lx\r\n",
(int)i, (u_long)firstaddr));
printf("size for orig `tsb' %x\n", (int)TSBSIZE);
valloc(tsb, pte_t, TSBSIZE);
bzero(tsb, TSBSIZE);