coreboot-kgpe-d16/src/commonlib/mem_pool.c
Aaron Durbin ca0a67624b commonlib: Prepare code to be included in cbfstool builds.
Some of the files need to be adjusted so that they can be used
both in cbfstool as well as coreboot proper. For coreboot,
add a <sys/types.h> file such that proper types can be included
from both the tools and coreboot. The other chanes are to accomodate
stricter checking in cbfstool.

BUG=chrome-os-partner:48412
BUG=chromium:445938
BRANCH=None
TEST=Built on glados including tools. Booted.

Change-Id: I771c6675c64b8837f775427721dd3300a8fa1bc0
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/12784
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2016-01-06 01:11:32 +01:00

47 lines
1.2 KiB
C

/*
* This file is part of the coreboot project.
*
* Copyright 2015 Google Inc.
*
* 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; version 2 of the License.
*
* 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.
*/
#include <commonlib/helpers.h>
#include <commonlib/mem_pool.h>
void *mem_pool_alloc(struct mem_pool *mp, size_t sz)
{
void *p;
/* Make all allocations be at least 8 byte aligned. */
sz = ALIGN_UP(sz, 8);
/* Determine if any space available. */
if ((mp->size - mp->free_offset) < sz)
return NULL;
p = &mp->buf[mp->free_offset];
mp->free_offset += sz;
mp->last_alloc = p;
return p;
}
void mem_pool_free(struct mem_pool *mp, void *p)
{
/* Determine if p was the most recent allocation. */
if (p == NULL || mp->last_alloc != p)
return;
mp->free_offset = mp->last_alloc - mp->buf;
/* No way to track allocation before this one. */
mp->last_alloc = NULL;
}