diff options
| author | Michael Shalayeff <mickey@cvs.openbsd.org> | 2006-08-17 17:09:52 +0000 |
|---|---|---|
| committer | Michael Shalayeff <mickey@cvs.openbsd.org> | 2006-08-17 17:09:52 +0000 |
| commit | 539eb3d08d49f8c3f76ec55fc083154e9e7995b9 (patch) | |
| tree | 166d520f1844690f5d245377155ac11979330b0b /sys | |
| parent | fbacccb0496e1b88832873ee5de456339c78a7c0 (diff) | |
prefer higher phys memory for page tables
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/arch/i386/i386/pmapae.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/sys/arch/i386/i386/pmapae.c b/sys/arch/i386/i386/pmapae.c index 6f3ed0c844c..3a8256929cc 100644 --- a/sys/arch/i386/i386/pmapae.c +++ b/sys/arch/i386/i386/pmapae.c @@ -1,4 +1,4 @@ -/* $OpenBSD: pmapae.c,v 1.3 2006/05/19 20:53:31 brad Exp $ */ +/* $OpenBSD: pmapae.c,v 1.4 2006/08/17 17:09:51 mickey Exp $ */ /* * Copyright (c) 2006 Michael Shalayeff @@ -364,7 +364,7 @@ * is a void function. * * [B] new page tables pages (PTP) - * call uvm_pagealloc() + * call pae_pagealloc() * => success: zero page, add to pm_pdir * => failure: we are out of free vm_pages, let pmap_enter() * tell UVM about it. @@ -590,6 +590,13 @@ extern struct pmap_head pmaps; extern struct pmap *pmaps_hand; /* + * a towards larger memory prioritised version opf uvm_pagealloc() + */ +#define pae_pagealloc(obj, off, anon, flags) \ + uvm_pagealloc_strat((obj), (off), (anon), (flags), \ + UVM_PGA_STRAT_FALLBACK, VM_FREELIST_ABOVE4G) + +/* * local prototypes */ @@ -830,7 +837,7 @@ pmap_bootstrap_pae() for (va = KERNBASE, eva = va + (nkpde << 22); va < eva; va += PAGE_SIZE) { if (!pmap_valid_entry(PDE(kpm, pdei(va)))) { - ptp = uvm_pagealloc(&kpm->pm_obj, va, NULL, + ptp = pae_pagealloc(&kpm->pm_obj, va, NULL, UVM_PGA_ZERO); ptaddr = VM_PAGE_TO_PHYS(ptp); PDE(kpm, pdei(va)) = ptaddr | PG_KW | PG_V; @@ -861,7 +868,6 @@ pmap_bootstrap_pae() nkptp_max = 2048 - PDSLOT_KERN - 4; vm_max_address = (PDSLOT_PTE << PDSHIFT) + (PDSLOT_PTE << PGSHIFT); - avail_end = avail_end2; pmap_pte_set_p = pmap_pte_set_pae; pmap_pte_setbits_p = pmap_pte_setbits_pae; @@ -1007,7 +1013,7 @@ pmap_alloc_ptp_pae(struct pmap *pmap, int pde_index, boolean_t just_try) { struct vm_page *ptp; - ptp = uvm_pagealloc(&pmap->pm_obj, ptp_i2o(pde_index), NULL, + ptp = pae_pagealloc(&pmap->pm_obj, ptp_i2o(pde_index), NULL, UVM_PGA_USERESERVE|UVM_PGA_ZERO); if (ptp == NULL) { if (just_try) |