update uvm_pagealloc() and uvmspace_exec() arguments.
add "void" to functions which take no arguments. untabify flags lists.
This commit is contained in:
chs
parent
17ecd4e41a
commit
6bc3e72dcd
@ -1,4 +1,4 @@
|
||||
.\" $NetBSD: uvm.9,v 1.25 2001/07/28 15:31:29 chs Exp $
|
||||
.\" $NetBSD: uvm.9,v 1.26 2001/07/28 15:55:14 chs Exp $
|
||||
.\"
|
||||
.\" Copyright (c) 1998 Matthew R. Green
|
||||
.\" All rights reserved.
|
||||
@ -72,13 +72,13 @@ There are also several miscellaneous functions.
|
||||
.nr nS 1
|
||||
.Pp
|
||||
.Ft void
|
||||
.Fn uvm_init
|
||||
.Fn uvm_init "void"
|
||||
.Ft void
|
||||
.Fn uvm_init_limits "struct proc *p"
|
||||
.Ft void
|
||||
.Fn uvm_setpagesize
|
||||
.Fn uvm_setpagesize "void"
|
||||
.Ft void
|
||||
.Fn uvm_swap_init
|
||||
.Fn uvm_swap_init "void"
|
||||
.nr nS 0
|
||||
.Pp
|
||||
.Fn uvm_init
|
||||
@ -121,7 +121,7 @@ initialises the swap sub-system.
|
||||
.Ft struct vmspace *
|
||||
.Fn uvmspace_alloc "vaddr_t min" "vaddr_t max" "int pageable"
|
||||
.Ft void
|
||||
.Fn uvmspace_exec "struct proc *p"
|
||||
.Fn uvmspace_exec "struct proc *p" "vaddr_t start" "vaddr_t end"
|
||||
.Ft struct vmspace *
|
||||
.Fn uvmspace_fork "struct vmspace *vm"
|
||||
.Ft void
|
||||
@ -217,10 +217,10 @@ The values that
|
||||
.Fa advice
|
||||
can take are:
|
||||
.Bd -literal
|
||||
#define UVM_ADV_NORMAL 0x0 /* 'normal' */
|
||||
#define UVM_ADV_RANDOM 0x1 /* 'random' */
|
||||
#define UVM_ADV_NORMAL 0x0 /* 'normal' */
|
||||
#define UVM_ADV_RANDOM 0x1 /* 'random' */
|
||||
#define UVM_ADV_SEQUENTIAL 0x2 /* 'sequential' */
|
||||
#define UVM_ADV_MASK 0x7 /* mask */
|
||||
#define UVM_ADV_MASK 0x7 /* mask */
|
||||
.Ed
|
||||
.Pp
|
||||
The values that
|
||||
@ -315,6 +315,10 @@ either reuses the address space of process
|
||||
if there are no other references to it, or creates
|
||||
a new one with
|
||||
.Fn uvmspace_alloc .
|
||||
The range of valid addresses in the address space is reset to
|
||||
.Fa start
|
||||
through
|
||||
.Fa end .
|
||||
.Pp
|
||||
.Fn uvmspace_fork
|
||||
creates and returns a new address space based upon the
|
||||
@ -396,8 +400,8 @@ but the actual mapping may be smaller than this.
|
||||
is updated to contain the actual length mapped.
|
||||
The flags must be one of
|
||||
.Bd -literal
|
||||
#define UBC_READ 0x01 /* mapping will be accessed for read */
|
||||
#define UBC_WRITE 0x02 /* mapping will be accessed for write */
|
||||
#define UBC_READ 0x01 /* mapping will be accessed for read */
|
||||
#define UBC_WRITE 0x02 /* mapping will be accessed for write */
|
||||
.Ed
|
||||
.Pp
|
||||
Currently,
|
||||
@ -548,7 +552,7 @@ is non-zero, entries in the map may be paged out.
|
||||
.Pp
|
||||
.nr nS 1
|
||||
.Ft struct vm_page *
|
||||
.Fn uvm_pagealloc "struct uvm_object *uobj" "voff_t off" "struct vm_anon *anon"
|
||||
.Fn uvm_pagealloc "struct uvm_object *uobj" "voff_t off" "struct vm_anon *anon" "int flags"
|
||||
.Ft void
|
||||
.Fn uvm_pagerealloc "struct vm_page *pg" "struct uvm_object *newobj" "voff_t newoff"
|
||||
.Ft void
|
||||
@ -568,15 +572,26 @@ in either the object
|
||||
.Fa uobj
|
||||
or the anonymous memory
|
||||
.Fa anon ,
|
||||
which must be locked by the caller. Only one of
|
||||
.Fa off
|
||||
and
|
||||
.Fa uobj
|
||||
can be non
|
||||
.Dv NULL .
|
||||
which must be locked by the caller.
|
||||
Returns
|
||||
.Dv NULL
|
||||
when no page can be found.
|
||||
The flags can be any of
|
||||
.Bd -literal
|
||||
#define UVM_PGA_USERESERVE 0x0001 /* ok to use reserve pages */
|
||||
#define UVM_PGA_ZERO 0x0002 /* returned page must be zero'd */
|
||||
.Ed
|
||||
.Pp
|
||||
.Dv UVM_PGA_USERESERVE
|
||||
means to allocate a page even if that will result in the number of free pages
|
||||
being lower than
|
||||
.Dv uvmexp.reserve_pagedaemon
|
||||
(if the current thread is the pagedaemon) or
|
||||
.Dv uvmexp.reserve_kernel
|
||||
(if the current thread is not the pagedaemon).
|
||||
.Dv UVM_PGA_ZERO
|
||||
causes the returned page to be filled with zeroes, either by allocating it
|
||||
from a pool of pre-zeroed pages or by zeroing it in-line as necessary.
|
||||
.Pp
|
||||
.Fn uvm_pagerealloc
|
||||
reallocates page
|
||||
@ -628,9 +643,9 @@ addresses of pages not already in use.
|
||||
.Pp
|
||||
.nr nS 1
|
||||
.Ft void
|
||||
.Fn uvm_pageout
|
||||
.Fn uvm_pageout "void"
|
||||
.Ft void
|
||||
.Fn uvm_scheduler
|
||||
.Fn uvm_scheduler "void"
|
||||
.Ft void
|
||||
.Fn uvm_swapin "struct proc *p"
|
||||
.nr nS 0
|
||||
@ -669,7 +684,7 @@ swaps in the named process.
|
||||
.Fn uvm_vsunlock "struct proc *p" "caddr_t addr" "size_t len"
|
||||
|
||||
.Ft void
|
||||
.Fn uvm_meter
|
||||
.Fn uvm_meter "void"
|
||||
.Ft int
|
||||
.Fn uvm_sysctl "int *name" "u_int namelen" "void *oldp" "size_t *oldlenp" "void *newp " "size_t newlen" "struct proc *p"
|
||||
|
||||
@ -890,11 +905,11 @@ The number of pages requested is pointed to by
|
||||
and this value is updated with the actual number of pages returned.
|
||||
The flags can be
|
||||
.Bd -literal
|
||||
#define UFP_ALL 0x00 /* return all pages requested */
|
||||
#define UFP_NOWAIT 0x01 /* don't sleep */
|
||||
#define UFP_NOALLOC 0x02 /* don't allocate new pages */
|
||||
#define UFP_NOCACHE 0x04 /* don't return pages which already exist */
|
||||
#define UFP_NORDONLY 0x08 /* don't return PG_READONLY pages */
|
||||
#define UFP_ALL 0x00 /* return all pages requested */
|
||||
#define UFP_NOWAIT 0x01 /* don't sleep */
|
||||
#define UFP_NOALLOC 0x02 /* don't allocate new pages */
|
||||
#define UFP_NOCACHE 0x04 /* don't return pages which already exist */
|
||||
#define UFP_NORDONLY 0x08 /* don't return PG_READONLY pages */
|
||||
.Ed
|
||||
.Pp
|
||||
.Dv UFP_ALL
|
||||
|
||||
Loading…
Reference in New Issue
Block a user