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- #ifndef _GPXE_MALLOC_H
- #define _GPXE_MALLOC_H
-
- #include <stdint.h>
-
- /** @file
- *
- * Dynamic memory allocation
- *
- */
-
- /*
- * Prototypes for the standard functions (malloc() et al) are in
- * stdlib.h. Include <gpxe/malloc.h> only if you need the
- * non-standard functions, such as malloc_dma().
- *
- */
- #include <stdlib.h>
-
- extern size_t freemem;
-
- extern void * __malloc 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 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 /* _GPXE_MALLOC_H */
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