MMIO_REGION_LENGTH 272 arch/x86/kernel/amd_iommu_init.c if (!request_mem_region(address, MMIO_REGION_LENGTH, "amd_iommu")) MMIO_REGION_LENGTH 275 arch/x86/kernel/amd_iommu_init.c ret = ioremap_nocache(address, MMIO_REGION_LENGTH); MMIO_REGION_LENGTH 279 arch/x86/kernel/amd_iommu_init.c release_mem_region(address, MMIO_REGION_LENGTH); MMIO_REGION_LENGTH 288 arch/x86/kernel/amd_iommu_init.c release_mem_region(iommu->mmio_phys, MMIO_REGION_LENGTH);