void mm_pginitialize(FAR void *heap_start, size_t heap_size)
{
#ifdef CONFIG_GRAN_SINGLE
int ret;
ret = gran_initialize(heap_start, heap_size, MM_PGSHIFT, MM_PGSHIFT);
DEBUGASSERT(ret == OK);
UNUSED(ret);
#else
g_pgalloc = gran_initialize(heap_start, heap_size, MM_PGSHIFT, MM_PGSHIFT);
DEBUGASSERT(pg_alloc != NULL);
#endif
}
int up_mmuinit(void)
{
/* Here we use the granule allocator as a page allocator. We lie and
* say that 1 page is 1 byte.
*/
#ifdef CONFIG_GRAN_SINGLE
return gran_initialize((FAR void *)Z180_PHYSHEAP_STARTPAGE,
Z180_PHYSHEAP_NPAGES, 0, 0);
#else
g_physhandle = gran_initialize((FAR void *)Z180_PHYSHEAP_STARTPAGE,
Z180_PHYSHEAP_NPAGES, 0, 0);
return g_physhandle ? OK : -ENOMEM;
#endif
}
static void
dma_alloc_init(void)
{
dma_allocator = gran_initialize(g_dma_heap,
sizeof(g_dma_heap),
7, /* 128B granule - must be > alignment (XXX bug?) */
6); /* 64B alignment */
if (dma_allocator == NULL) {
message("[boot] DMA allocator setup FAILED");
} else {
g_dma_perf = perf_alloc(PC_COUNT, "DMA allocations");
}
}
int stm32_dma_alloc_init(void)
{
dma_allocator = gran_initialize(g_dma_heap,
sizeof(g_dma_heap),
7, /* 128B granule - must be > alignment (XXX bug?) */
6); /* 64B alignment */
if (dma_allocator == NULL)
{
return -ENOMEM;
}
return OK;
}
/****************************************************************************
* Public Functions
****************************************************************************/
__EXPORT int board_dma_alloc_init(void)
{
dma_allocator = gran_initialize(g_dma_heap,
sizeof(g_dma_heap),
7, /* 128B granule - must be > alignment (XXX bug?) */
6); /* 64B alignment */
if (dma_allocator == NULL) {
return -ENOMEM;
} else {
dma_heap_inuse = 0;
dma_heap_peak_use = 0;
g_dma_perf = perf_alloc(PC_COUNT, "dma_alloc");
}
return OK;
}
