static int omap_dmm_ioctl(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long args)
{
struct iodmm_struct *obj;
int ret = 0;
obj = (struct iodmm_struct *)filp->private_data;
if (!obj)
return -EINVAL;
if (_IOC_TYPE(cmd) != DMM_IOC_MAGIC)
return -ENOTTY;
switch (cmd) {
case DMM_IOCSETTLBENT:
/* FIXME: re-visit this check to perform
proper permission checks */
/* if (!capable(CAP_SYS_ADMIN))
return -EPERM; */
ret = program_tlb_entry(obj, (const void __user *)args);
break;
case DMM_IOCCREATEPOOL:
/* FIXME: re-visit this check to perform
proper permission checks */
/* if (!capable(CAP_SYS_ADMIN))
return -EPERM; */
ret = omap_create_dmm_pool(obj, (const void __user *)args);
break;
case DMM_IOCMEMMAP:
ret = dmm_user(obj, (void __user *)args);
break;
case DMM_IOCMEMUNMAP:
ret = user_un_map(obj, (const void __user *)args);
break;
case IOMMU_IOCEVENTREG:
ret = register_mmufault(obj, (const void __user *)args);
break;
case IOMMU_IOCEVENTUNREG:
ret = register_mmufault(obj, (const void __user *)args);
break;
case DMM_IOCMEMFLUSH:
ret = proc_begin_dma(obj, (void __user *)args);
break;
case DMM_IOCMEMINV:
ret = proc_end_dma(obj, (void __user *)args);
break;
/* This ioctl can be deprecated */
case DMM_IOCDELETEPOOL:
break;
case DMM_IOCDATOPA:
default:
return -ENOTTY;
}
return ret;
}
u32 procwrap_end_dma(union trapped_args *args, void *pr_ctxt)
{
int status;
if (args->args_proc_dma.dir >= DMA_NONE)
return -EINVAL;
status = proc_end_dma(pr_ctxt,
args->args_proc_dma.mpu_addr,
args->args_proc_dma.size,
args->args_proc_dma.dir);
return status;
}
