powerpc: enable HPT superpages by default

It's time to flip these on and see if anything happens in -HEAD.
It can be turned back off before 16.0-RELEASE if there are problems.

Reviewed by:	jhibbits
Differential Revision:	https://reviews.freebsd.org/D55071

This commit is contained in:

Adrian Chadd

2026-02-16 09:49:46 -08:00

parent e5213ca4a3

commit f412a5c565

1 changed files with 2 additions and 7 deletions

									
										sys/powerpc/aim/mmu_oea64.c
									
		+2
		-7
	
												View File
												
				@@ -1921,13 +1921,8 @@ moea64_init(void)

					    NULL, NULL, NULL, NULL, UMA_ALIGN_PTR,

					    UMA_ZONE_VM | UMA_ZONE_NOFREE);

					/*

					 * Are large page mappings enabled?

					 *

					 * While HPT superpages are not better tested, leave it disabled by

					 * default.

					 */

					superpages_enabled = 0;

					/* Are large page mappings enabled? */

					superpages_enabled = 1;

					TUNABLE_INT_FETCH("vm.pmap.superpages_enabled", &superpages_enabled);

					if (superpages_enabled) {

						KASSERT(MAXPAGESIZES > 1 && pagesizes[1] == 0,