extern IMG_RESULT SYSMEMKM_AddIONMemory(SYSDEVU_sInfo *sysdev, SYS_eMemPool *peMemPool)
{
static SYS_eMemPool memPool;
static IMG_BOOL initialized = IMG_FALSE;
/* Only one system heap is allowed to be inserted - obviously - */
if(initialized)
return memPool;
SYSMEMU_AddMemoryHeap(&ion_ops, sysdev, IMG_FALSE, IMG_NULL, &memPool);
initialized = IMG_TRUE;
*peMemPool = memPool;
return IMG_SUCCESS;
}
IMG_RESULT SYSMEMKM_AddCarveoutMemory(
IMG_UINTPTR vstart,
IMG_PHYSADDR pstart,
IMG_UINT32 size,
SYS_eMemPool * peMemPool
)
{
IMG_RESULT ui32Result;
struct priv_params *prv;
struct gen_pool *pool = gen_pool_create(12, -1);
prv = (struct priv_params *)IMG_MALLOC(sizeof(*prv));
IMG_ASSERT(prv != IMG_NULL);
if(IMG_NULL == prv)
{
ui32Result = IMG_ERROR_OUT_OF_MEMORY;
goto error_priv_alloc;
}
IMG_MEMSET((void *)prv, 0, sizeof(*prv));
IMG_ASSERT(pool != IMG_NULL);
IMG_ASSERT(size != 0);
IMG_ASSERT((vstart & (HOST_MMU_PAGE_SIZE-1)) == 0);
gen_pool_add_virt(pool, (unsigned long)vstart, (unsigned long)pstart, size, -1);
prv->pool = pool;
prv->pstart = pstart;
prv->size = size;
prv->vstart = vstart;
ui32Result = SYSMEMU_AddMemoryHeap(&carveout_ops, IMG_TRUE, (IMG_VOID *)prv, peMemPool);
IMG_ASSERT(IMG_SUCCESS == ui32Result);
if(IMG_SUCCESS != ui32Result)
{
goto error_heap_add;
}
return IMG_SUCCESS;
error_heap_add:
IMG_FREE(prv);
error_priv_alloc:
gen_pool_destroy(pool);
return ui32Result;
}
IMG_RESULT SYSMEMKM_AddDevIFMemory(
SYSDEVU_sInfo *sysdev,
IMG_UINTPTR vstart,
IMG_PHYSADDR pstart,
IMG_UINT32 size,
SYS_eMemPool * peMemPool
)
{
IMG_RESULT ui32Result;
struct priv_params *prv;
IMG_ASSERT(size != 0);
IMG_ASSERT((vstart & (HOST_MMU_PAGE_SIZE - 1)) == 0);
if((0 == size) ||
(0 != (vstart & (HOST_MMU_PAGE_SIZE - 1))))
{
return IMG_ERROR_INVALID_PARAMETERS;
}
prv = (struct priv_params *)IMG_MALLOC(sizeof(*prv));
IMG_ASSERT(IMG_NULL != prv);
if (IMG_NULL == prv)
{
return IMG_ERROR_OUT_OF_MEMORY;
}
IMG_MEMSET((void *)prv, 0, sizeof(*prv));
IMG_ASSERT(size != 0);
IMG_ASSERT((((IMG_UINTPTR)vstart) & (HOST_MMU_PAGE_SIZE-1)) == 0);
// not allowed to use kmalloc for this size of buffer in the kernel.
prv->npages = (size + (HOST_MMU_PAGE_SIZE-1)) / HOST_MMU_PAGE_SIZE;
prv->alloc_pool = IMG_BIGALLOC(prv->npages);
IMG_ASSERT(prv->alloc_pool != IMG_NULL);
if(IMG_NULL == prv->alloc_pool)
{
ui32Result = IMG_ERROR_OUT_OF_MEMORY;
goto error_pool_alloc;
}
IMG_MEMSET(prv->alloc_pool, 0, prv->npages);
prv->pstart = pstart;
prv->size = size;
prv->vstart = vstart;
ui32Result = SYSMEMU_AddMemoryHeap(&devif_ops, sysdev, IMG_TRUE, (IMG_VOID *)prv, peMemPool);
IMG_ASSERT(IMG_SUCCESS == ui32Result);
if(IMG_SUCCESS != ui32Result)
{
goto error_heap_add;
}
return IMG_SUCCESS;
/* Error handling. */
error_heap_add:
IMG_BIGFREE(prv->alloc_pool);
error_pool_alloc:
IMG_FREE(prv);
return ui32Result;
}