VCHIQ_STATUS_T
vchiq_prepare_bulk_data(VCHIQ_BULK_T *bulk, VCHI_MEM_HANDLE_T memhandle,
void *offset, int size, int dir)
{
PAGELIST_T *pagelist;
int ret;
WARN_ON(memhandle != VCHI_MEM_HANDLE_INVALID);
ret = create_pagelist((char __user *)offset, size,
(dir == VCHIQ_BULK_RECEIVE)
? PAGELIST_READ
: PAGELIST_WRITE,
current,
&pagelist);
if (ret != 0)
return VCHIQ_ERROR;
bulk->handle = memhandle;
bulk->data = VCHIQ_ARM_ADDRESS(pagelist);
/* Store the pagelist address in remote_data, which isn't used by the
slave. */
bulk->remote_data = pagelist;
return VCHIQ_SUCCESS;
}
VCHIQ_STATUS_T
vchiq_prepare_bulk_data(VCHIQ_BULK_T *bulk, VCHI_MEM_HANDLE_T memhandle,
void *offset, int size, int dir)
{
PAGELIST_T *pagelist;
BULKINFO_T *bi;
int ret;
WARN_ON(memhandle != VCHI_MEM_HANDLE_INVALID);
bi = malloc(sizeof(*bi), M_VCPAGELIST, M_WAITOK | M_ZERO);
if (bi == NULL)
return VCHIQ_ERROR;
ret = create_pagelist((char __user *)offset, size,
(dir == VCHIQ_BULK_RECEIVE)
? PAGELIST_READ
: PAGELIST_WRITE,
current,
bi);
if (ret != 0)
return VCHIQ_ERROR;
bulk->handle = memhandle;
bulk->data = VCHIQ_ARM_ADDRESS(bi->pagelist);
/* Store the pagelist address in remote_data, which isn't used by the
slave. */
bulk->remote_data = bi;
return VCHIQ_SUCCESS;
}
