u-boot/common/malloc_simple.c
Simon Glass 401d1c4f5d common: Drop asm/global_data.h from common header
Move this out of the common header and include it only where needed.  In
a number of cases this requires adding "struct udevice;" to avoid adding
another large header or in other cases replacing / adding missing header
files that had been pulled in, very indirectly.   Finally, we have a few
cases where we did not need to include <asm/global_data.h> at all, so
remove that include.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
2021-02-02 15:33:42 -05:00

83 lines
1.5 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Simple malloc implementation
*
* Copyright (c) 2014 Google, Inc
*/
#define LOG_CATEGORY LOGC_ALLOC
#include <common.h>
#include <log.h>
#include <malloc.h>
#include <mapmem.h>
#include <asm/global_data.h>
#include <asm/io.h>
DECLARE_GLOBAL_DATA_PTR;
static void *alloc_simple(size_t bytes, int align)
{
ulong addr, new_ptr;
void *ptr;
addr = ALIGN(gd->malloc_base + gd->malloc_ptr, align);
new_ptr = addr + bytes - gd->malloc_base;
log_debug("size=%zx, ptr=%lx, limit=%lx: ", bytes, new_ptr,
gd->malloc_limit);
if (new_ptr > gd->malloc_limit) {
log_err("alloc space exhausted\n");
return NULL;
}
ptr = map_sysmem(addr, bytes);
gd->malloc_ptr = ALIGN(new_ptr, sizeof(new_ptr));
return ptr;
}
void *malloc_simple(size_t bytes)
{
void *ptr;
ptr = alloc_simple(bytes, 1);
if (!ptr)
return ptr;
log_debug("%lx\n", (ulong)ptr);
return ptr;
}
void *memalign_simple(size_t align, size_t bytes)
{
void *ptr;
ptr = alloc_simple(bytes, align);
if (!ptr)
return ptr;
log_debug("aligned to %lx\n", (ulong)ptr);
return ptr;
}
#if CONFIG_IS_ENABLED(SYS_MALLOC_SIMPLE)
void *calloc(size_t nmemb, size_t elem_size)
{
size_t size = nmemb * elem_size;
void *ptr;
ptr = malloc(size);
if (!ptr)
return ptr;
memset(ptr, '\0', size);
return ptr;
}
#endif
void malloc_simple_info(void)
{
log_info("malloc_simple: %lx bytes used, %lx remain\n", gd->malloc_ptr,
CONFIG_VAL(SYS_MALLOC_F_LEN) - gd->malloc_ptr);
}