#ifndef _MALLOC_H
#define _MALLOC_H
#include <stdint.h>
/** @file
*
* Dynamic memory allocation
*/
/*
* Prototypes for the standard functions (malloc() et al) are in
* stdlib.h. Include <malloc.h> only if you need the non-standard
* functions, such as malloc_dma().
#include <stdlib.h>
extern void * alloc_memblock ( size_t size, size_t align );
extern void free_memblock ( void *ptr, size_t size );
extern void mpopulate ( void *start, size_t len );
extern void mdumpfree ( void );
/**
* Allocate memory for DMA
* @v size Requested size
* @v align Physical alignment
* @ret ptr Memory, or NULL
* Allocates physically-aligned memory for DMA.
* @c align must be a power of two. @c size may not be zero.
static inline void * malloc_dma ( size_t size, size_t phys_align ) {
return alloc_memblock ( size, phys_align );
}
* Free memory allocated with malloc_dma()
* @v ptr Memory allocated by malloc_dma(), or NULL
* @v size Size of memory, as passed to malloc_dma()
* Memory allocated with malloc_dma() can only be freed with
* free_dma(); it cannot be freed with the standard free().
* If @c ptr is NULL, no action is taken.
static inline void free_dma ( void *ptr, size_t size ) {
free_memblock ( ptr, size );
#endif /* _MALLOC_H */