C++ (Cpp) hp_zx1_ioc_owner示例

示例#1

static int __init
hp_zx1_ioc_init (u64 hpa)
{
	struct _hp_private *hp = &hp_private;

	hp->ioc_regs = ioremap(hpa, 1024);
	if (!hp->ioc_regs)
		return -ENOMEM;

	
	hp->io_pdir_owner = (readq(hp->ioc_regs+HP_ZX1_IBASE) & 0x1) == 0;

	if (hp->io_pdir_owner)
		return hp_zx1_ioc_owner();

	return hp_zx1_ioc_shared();
}

示例#2

文件： hp-agp.c 项目： 12019/kernel_zte_u880

static int __init
hp_zx1_ioc_init (u64 hpa)
{
	struct _hp_private *hp = &hp_private;

	hp->ioc_regs = ioremap(hpa, 1024);
	if (!hp->ioc_regs)
		return -ENOMEM;

	/*
	 * If the IOTLB is currently disabled, we can take it over.
	 * Otherwise, we have to share with sba_iommu.
	 */
	hp->io_pdir_owner = (readq(hp->ioc_regs+HP_ZX1_IBASE) & 0x1) == 0;

	if (hp->io_pdir_owner)
		return hp_zx1_ioc_owner();

	return hp_zx1_ioc_shared();
}