/*
* Copyright (c) 2006 Jakub Jermar
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - 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.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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.
*/
#ifndef BOOT_BALLOC_H_
#define BOOT_BALLOC_H_
#include <types.h>
/*
* SmartFirmware unfortunatelly fails to claim physical memory
* for the boot allocator if the requested memory is too big
* (roughly 512 kB and more). SmartFirmware runs on machines
* containing newer versions of UltraSPARC processors. It
* has been observed that the OFW tree is small enough for these
* machines so that it can fit into 256 kB. This is a workaround how
* to get rid of the memory claiming failure.
*/
#if defined (SMART_FIRMWARE)
#define BALLOC_MAX_SIZE (256 * 1024)
#else
#define BALLOC_MAX_SIZE (1024 * 1024)
#endif
typedef struct {
uintptr_t base;
size_t size;
} ballocs_t;
extern void balloc_init(ballocs_t *b, uintptr_t base);
extern void *balloc(size_t size, size_t alignment);
#endif