dmar_detect_dsm 1942 drivers/iommu/dmar.c if (!dmar_detect_dsm(handle, func)) dmar_detect_dsm 2092 drivers/iommu/dmar.c if (dmar_detect_dsm(handle, DMAR_DSM_FUNC_DRHD)) { dmar_detect_dsm 2109 drivers/iommu/dmar.c if (dmar_detect_dsm(handle, DMAR_DSM_FUNC_DRHD)) {