static u32 omap2_iommu_fault_isr(struct iommu *obj, u32 *ra)
{
int i;
u32 stat, da;
const char *err_msg[] = {
"tlb miss",
"translation fault",
"emulation miss",
"table walk fault",
"multi hit fault",
};
stat = iommu_read_reg(obj, MMU_IRQSTATUS);
stat &= MMU_IRQ_MASK;
if (!stat)
return 0;
da = iommu_read_reg(obj, MMU_FAULT_AD);
*ra = da;
dev_err(obj->dev, "%s:\tda:%08x ", __func__, da);
for (i = 0; i < ARRAY_SIZE(err_msg); i++) {
if (stat & (1 << i))
printk("%s ", err_msg[i]);
}
printk("\n");
iommu_write_reg(obj, stat, MMU_IRQSTATUS);
omap2_iommu_disable(obj);
return stat;
}
static void iommu_disable(struct omap_iommu *obj)
{
struct platform_device *pdev = to_platform_device(obj->dev);
struct iommu_platform_data *pdata = dev_get_platdata(&pdev->dev);
omap2_iommu_disable(obj);
pm_runtime_put_sync(obj->dev);
if (pdata && pdata->assert_reset)
pdata->assert_reset(pdev, pdata->reset_name);
}