 @@ -1,194 +1,195 @@
-/*	$NetBSD: uvm.h,v 1.65 2015/04/13 16:46:33 riastradh Exp $	*/
+/*	$NetBSD: uvm.h,v 1.66 2015/04/13 22:04:44 riastradh Exp $	*/
 /*
  * Copyright (c) 1997 Charles D. Cranor and Washington University.
  * All rights reserved.
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
+ *
  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
  * from: Id: uvm.h,v 1.1.2.14 1998/02/02 20:07:19 chuck Exp
  */
 #ifndef _UVM_UVM_H_
 #define _UVM_UVM_H_
 #if defined(_KERNEL_OPT)
 #include "opt_lockdebug.h"
 #include "opt_multiprocessor.h"
 #include "opt_uvmhist.h"
 #include "opt_uvm_page_trkown.h"
 #endif
 #include <uvm/uvm_extern.h>
 #ifdef _KERNEL
 #include <uvm/uvm_stat.h>
 #endif
 /*
  * pull in prototypes
  */
 #include <uvm/uvm_amap.h>
 #include <uvm/uvm_aobj.h>
 #include <uvm/uvm_fault.h>
 #include <uvm/uvm_glue.h>
 #include <uvm/uvm_km.h>
 #include <uvm/uvm_loan.h>
 #include <uvm/uvm_map.h>
 #include <uvm/uvm_object.h>
 #include <uvm/uvm_page.h>
 #include <uvm/uvm_pager.h>
 #include <uvm/uvm_pdaemon.h>
 #include <uvm/uvm_swap.h>
 #include <sys/rndsource.h>
 #ifdef _KERNEL
 #include <sys/rndsource.h>
 /*
  * pull in VM_NFREELIST
  */
 #include <machine/vmparam.h>
 struct workqueue;
 /*
  * per-cpu data
  */
 struct uvm_cpu {
 	struct pgfreelist page_free[VM_NFREELIST]; /* unallocated pages */
 	int page_free_nextcolor;	/* next color to allocate from */
 	int page_idlezero_next;		/* which color to zero next */
 	bool page_idle_zero;		/* TRUE if we should try to zero
 					   pages in the idle loop */
 	int pages[PGFL_NQUEUES];	/* total of pages in page_free */
 	u_int emap_gen;			/* emap generation number */
 	krndsource_t rs;		/* entropy source */
 };
 /*
  * uvm structure (vm global state: collected in one structure for ease
  * of reference...)
  */
 struct uvm {
 	/* vm_page related parameters */
 		/* vm_page queues */
 	struct pgfreelist page_free[VM_NFREELIST]; /* unallocated pages */
 	bool page_init_done;		/* TRUE if uvm_page_init() finished */
 		/* page daemon trigger */
 	int pagedaemon;			/* daemon sleeps on this */
 	struct lwp *pagedaemon_lwp;	/* daemon's lid */
 		/* aiodone daemon */
 	struct workqueue *aiodone_queue;
 	/* aio_done is locked by uvm.pagedaemon_lock and splbio! */
 	TAILQ_HEAD(, buf) aio_done;		/* done async i/o reqs */
 	/* per-cpu data */
 	struct uvm_cpu *cpus[MAXCPUS];
 };
 /*
  * kernel object: to support anonymous pageable kernel memory
  */
 extern struct uvm_object *uvm_kernel_object;
 /*
  * locks (made globals for lockstat).
  */
 extern kmutex_t uvm_pageqlock;		/* lock for active/inactive page q */
 extern kmutex_t uvm_fpageqlock;		/* lock for free page q */
 extern kmutex_t uvm_kentry_lock;
 extern kmutex_t uvm_swap_data_lock;
 #endif /* _KERNEL */
 /*
  * vm_map_entry etype bits:
  */
 #define UVM_ET_OBJ		0x01	/* it is a uvm_object */
 #define UVM_ET_SUBMAP		0x02	/* it is a vm_map submap */
 #define UVM_ET_COPYONWRITE 	0x04	/* copy_on_write */
 #define UVM_ET_NEEDSCOPY	0x08	/* needs_copy */
 #define UVM_ET_ISOBJ(E)		(((E)->etype & UVM_ET_OBJ) != 0)
 #define UVM_ET_ISSUBMAP(E)	(((E)->etype & UVM_ET_SUBMAP) != 0)
 #define UVM_ET_ISCOPYONWRITE(E)	(((E)->etype & UVM_ET_COPYONWRITE) != 0)
 #define UVM_ET_ISNEEDSCOPY(E)	(((E)->etype & UVM_ET_NEEDSCOPY) != 0)
 #ifdef _KERNEL
 /*
  * holds all the internal UVM data
  */
 extern struct uvm uvm;
 /*
  * historys
  */
 #ifdef UVMHIST
 UVMHIST_DECL(maphist);
 UVMHIST_DECL(pdhist);
 UVMHIST_DECL(ubchist);
 UVMHIST_DECL(loanhist);
 #endif
 extern struct evcnt uvm_ra_total;
 extern struct evcnt uvm_ra_hit;
 extern struct evcnt uvm_ra_miss;
 /*
  * UVM_UNLOCK_AND_WAIT: atomic unlock+wait... wrapper around the
  * interlocked tsleep() function.
  */
 #define	UVM_UNLOCK_AND_WAIT(event, slock, intr, msg, timo)		\
 do {									\
 	(void) mtsleep(event, PVM | PNORELOCK | (intr ? PCATCH : 0),	\
 	    msg, timo, slock);						\
 } while (/*CONSTCOND*/ 0)
 void uvm_kick_pdaemon(void);
 /*
  * UVM_PAGE_OWN: track page ownership (only if UVM_PAGE_TRKOWN)
  */
 #if defined(UVM_PAGE_TRKOWN)
 #define UVM_PAGE_OWN(PG, TAG) uvm_page_own(PG, TAG)
 #else
 #define UVM_PAGE_OWN(PG, TAG) /* nothing */
 #endif /* UVM_PAGE_TRKOWN */
 #include <uvm/uvm_fault_i.h>
 #endif /* _KERNEL */
 #endif /* _UVM_UVM_H_ */