diff options
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/msm_iommu-v1.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/drivers/iommu/msm_iommu-v1.c b/drivers/iommu/msm_iommu-v1.c index 9691770ee38d..3ff30e5c3aeb 100644 --- a/drivers/iommu/msm_iommu-v1.c +++ b/drivers/iommu/msm_iommu-v1.c @@ -1299,6 +1299,9 @@ irqreturn_t msm_iommu_fault_handler_v2(int irq, void *dev_id) unsigned int fsr; int ret; + phys_addr_t pagetable_phys; + u64 faulty_iova = 0; + mutex_lock(&msm_iommu_lock); BUG_ON(!pdev); @@ -1333,11 +1336,14 @@ irqreturn_t msm_iommu_fault_handler_v2(int irq, void *dev_id) if (!ctx_drvdata->attached_domain) { pr_err("Bad domain in interrupt handler\n"); ret = -ENOSYS; - } else + } else { + faulty_iova = + GET_FAR(drvdata->cb_base, ctx_drvdata->num); ret = report_iommu_fault(ctx_drvdata->attached_domain, &ctx_drvdata->pdev->dev, - GET_FAR(drvdata->cb_base, ctx_drvdata->num), 0); + faulty_iova, 0); + } if (ret == -ENOSYS) { pr_err("Unexpected IOMMU page fault!\n"); pr_err("name = %s\n", drvdata->name); @@ -1346,6 +1352,14 @@ irqreturn_t msm_iommu_fault_handler_v2(int irq, void *dev_id) pr_err("Interesting registers:\n"); __print_ctx_regs(drvdata->cb_base, ctx_drvdata->num, fsr); + + if (ctx_drvdata->attached_domain) { + pagetable_phys = msm_iommu_iova_to_phys_soft( + ctx_drvdata->attached_domain, + faulty_iova); + pr_err("Page table in DDR shows PA = %x\n", + (unsigned int) pagetable_phys); + } } if (ret != -EBUSY) |