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