mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-30 12:04:07 +00:00
b6de32bd9b
for allocation of fictitious pages, for which PHYS_TO_VM_PAGE() returns proper fictitious vm_page_t. The range should be de-registered after consumer stopped using it. De-inline the PHYS_TO_VM_PAGE() since it now carries code to iterate over registered ranges. A hash container might be developed instead of range registration interface, and fake pages could be put automatically into the hash, were PHYS_TO_VM_PAGE() could look them up later. This should be considered before the MFC of the commit is done. Sponsored by: The FreeBSD Foundation Reviewed by: alc MFC after: 1 month
73 lines
2.7 KiB
C
73 lines
2.7 KiB
C
/*-
|
|
* Copyright (c) 2002-2006 Rice University
|
|
* Copyright (c) 2007 Alan L. Cox <alc@cs.rice.edu>
|
|
* All rights reserved.
|
|
*
|
|
* This software was developed for the FreeBSD Project by Alan L. Cox,
|
|
* Olivier Crameri, Peter Druschel, Sitaram Iyer, and Juan Navarro.
|
|
*
|
|
* 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 COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* ``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 COPYRIGHT
|
|
* HOLDERS OR CONTRIBUTORS 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/*
|
|
* Physical memory system definitions
|
|
*/
|
|
|
|
#ifndef _VM_PHYS_H_
|
|
#define _VM_PHYS_H_
|
|
|
|
#ifdef _KERNEL
|
|
|
|
/* Domains must be dense (non-sparse) and zero-based. */
|
|
struct mem_affinity {
|
|
vm_paddr_t start;
|
|
vm_paddr_t end;
|
|
int domain;
|
|
};
|
|
|
|
extern struct mem_affinity *mem_affinity;
|
|
|
|
/*
|
|
* The following functions are only to be used by the virtual memory system.
|
|
*/
|
|
void vm_phys_add_page(vm_paddr_t pa);
|
|
vm_page_t vm_phys_alloc_contig(u_long npages, vm_paddr_t low, vm_paddr_t high,
|
|
u_long alignment, vm_paddr_t boundary);
|
|
vm_page_t vm_phys_alloc_freelist_pages(int flind, int pool, int order);
|
|
vm_page_t vm_phys_alloc_pages(int pool, int order);
|
|
int vm_phys_fictitious_reg_range(vm_paddr_t start, vm_paddr_t end,
|
|
vm_memattr_t memattr);
|
|
void vm_phys_fictitious_unreg_range(vm_paddr_t start, vm_paddr_t end);
|
|
vm_page_t vm_phys_fictitious_to_vm_page(vm_paddr_t pa);
|
|
void vm_phys_free_contig(vm_page_t m, u_long npages);
|
|
void vm_phys_free_pages(vm_page_t m, int order);
|
|
void vm_phys_init(void);
|
|
void vm_phys_set_pool(int pool, vm_page_t m, int order);
|
|
boolean_t vm_phys_unfree_page(vm_page_t m);
|
|
boolean_t vm_phys_zero_pages_idle(void);
|
|
|
|
#endif /* _KERNEL */
|
|
#endif /* !_VM_PHYS_H_ */
|