64 lines
2.0 KiB
C
64 lines
2.0 KiB
C
/* Copyright (C) 2004 David Decotigny
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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USA.
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*/
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#ifndef _SOS_KMALLOC_H_
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#define _SOS_KMALLOC_H_
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/**
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* @file kmalloc.h
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*
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* Simple malloc-style wrapper to kmem_vmm.h and kmem_slab.h for
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* "anonymous" objects (ie not associated to any precise slab cache).
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*/
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#include <sos/types.h>
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#include <sos/errno.h>
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/**
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* Iniatilize the kmalloc subsystem, ie pre-allocate a series of caches.
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*/
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sos_ret_t sos_kmalloc_subsystem_setup(void);
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/*
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* sos_kmalloc flags
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*/
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/** sos_kmalloc() should succeed without blocking, or return NULL */
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#define SOS_KMALLOC_ATOMIC 1
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/**
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* Allocate a kernel object of the given size in the most suited slab
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* cache if size can be handled by one of the pre-allocated caches, or
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* using directly the range allocator otherwise. The object will
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* allways be mapped in physical memory (ie implies
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* SOS_KSLAB_CREATE_MAP and SOS_KMEM_VMM_MAP).
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*
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* @param size The size of the object
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* @param flags The allocation flags (SOS_KMALLOC_* flags)
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*/
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sos_vaddr_t sos_kmalloc(sos_size_t size, sos_ui32_t flags);
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/**
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* @note you are perfectly allowed to give the address of the
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* kernel image, or the address of the bios area here, it will work:
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* the kernel/bios WILL be "deallocated". But if you really want to do
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* this, well..., do expect some "surprises" ;)
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*/
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sos_ret_t sos_kfree(sos_vaddr_t vaddr);
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#endif /* _SOS_KMALLOC_H_ */
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