[BACK]Return to uvm_pager_i.h CVS log [TXT][DIR] Up to [cvs.NetBSD.org] / src / sys / uvm

Annotation of src/sys/uvm/uvm_pager_i.h, Revision 1.9

1.9     ! thorpej     1: /*     $NetBSD: uvm_pager_i.h,v 1.8 1999/07/08 18:11:03 thorpej Exp $  */
1.1       mrg         2:
                      3: /*
                      4:  *
                      5:  * Copyright (c) 1997 Charles D. Cranor and Washington University.
                      6:  * All rights reserved.
                      7:  *
                      8:  * Redistribution and use in source and binary forms, with or without
                      9:  * modification, are permitted provided that the following conditions
                     10:  * are met:
                     11:  * 1. Redistributions of source code must retain the above copyright
                     12:  *    notice, this list of conditions and the following disclaimer.
                     13:  * 2. Redistributions in binary form must reproduce the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer in the
                     15:  *    documentation and/or other materials provided with the distribution.
                     16:  * 3. All advertising materials mentioning features or use of this software
                     17:  *    must display the following acknowledgement:
                     18:  *      This product includes software developed by Charles D. Cranor and
                     19:  *      Washington University.
                     20:  * 4. The name of the author may not be used to endorse or promote products
                     21:  *    derived from this software without specific prior written permission.
                     22:  *
                     23:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
                     24:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
                     25:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
                     26:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
                     27:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
                     28:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
                     29:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
                     30:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
                     31:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
                     32:  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.3       mrg        33:  *
                     34:  * from: Id: uvm_pager_i.h,v 1.1.2.2 1997/10/09 23:05:46 chuck Exp
1.1       mrg        35:  */
1.4       perry      36:
                     37: #ifndef _UVM_UVM_PAGER_I_H_
                     38: #define _UVM_UVM_PAGER_I_H_
                     39:
1.1       mrg        40: /*
                     41:  * uvm_pager_i.h
                     42:  */
                     43:
                     44: /*
                     45:  * inline functions [maybe]
                     46:  */
                     47:
                     48: #if defined(UVM_PAGER_INLINE) || defined(UVM_PAGER)
                     49:
                     50: /*
                     51:  * uvm_pageratop: convert KVAs in the pager map back to their page
                     52:  * structures.
                     53:  */
                     54:
1.5       mrg        55: PAGER_INLINE struct vm_page *
                     56: uvm_pageratop(kva)
1.6       eeh        57:        vaddr_t kva;
1.1       mrg        58: {
1.6       eeh        59:        paddr_t pa;
1.1       mrg        60:
1.9     ! thorpej    61:        if (__predict_false(pmap_extract(pmap_kernel(), kva, &pa) == FALSE))
1.5       mrg        62:                panic("uvm_pageratop");
                     63:        return (PHYS_TO_VM_PAGE(pa));
1.1       mrg        64: }
                     65:
                     66: #endif /* defined(UVM_PAGER_INLINE) || defined(UVM_PAGER) */
1.4       perry      67:
                     68: #endif /* _UVM_UVM_PAGER_I_H_ */

CVSweb <webmaster@jp.NetBSD.org>