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Provide PMAP_{,UN}MAP_POOLPAGE().

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thorpej 1998-07-24 20:32:07 +00:00
parent 8325d058bf
commit 2385ee5eca
1 changed files with 7 additions and 1 deletions
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8
sys/arch/alpha/include/pmap.h
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@ -1,4 +1,4 @@
/* $NetBSD: pmap.h,v 1.21 1998/06/11 05:10:41 thorpej Exp $ */
/* $NetBSD: pmap.h,v 1.22 1998/07/24 20:32:07 thorpej Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
@ -190,6 +190,12 @@ extern pt_entry_t *VPT; /* Virtual Page Table */
#define PMAP_STEAL_MEMORY /* enable pmap_steal_memory() */
/*
* Alternate mapping hooks for pool pages. Avoids thrashing the TLB.
*/
#define PMAP_MAP_POOLPAGE(pa) ALPHA_PHYS_TO_K0SEG((pa))
#define PMAP_UNMAP_POOLPAGE(va) ALPHA_K0SEG_TO_PHYS((va))
vm_offset_t vtophys __P((vm_offset_t));
/* Machine-specific functions. */