diff options
Diffstat (limited to 'drivers/iommu/io-pgtable.h')
| -rw-r--r-- | drivers/iommu/io-pgtable.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/iommu/io-pgtable.h b/drivers/iommu/io-pgtable.h index 2df79093cad9..47d5ae559329 100644 --- a/drivers/iommu/io-pgtable.h +++ b/drivers/iommu/io-pgtable.h @@ -71,12 +71,17 @@ struct io_pgtable_cfg { * be accessed by a fully cache-coherent IOMMU or CPU (e.g. for a * software-emulated IOMMU), such that pagetable updates need not * be treated as explicit DMA data. + * + * IO_PGTABLE_QUIRK_NON_STRICT: Skip issuing synchronous leaf TLBIs + * on unmap, for DMA domains using the flush queue mechanism for + * delayed invalidation. */ #define IO_PGTABLE_QUIRK_ARM_NS BIT(0) #define IO_PGTABLE_QUIRK_NO_PERMS BIT(1) #define IO_PGTABLE_QUIRK_TLBI_ON_MAP BIT(2) #define IO_PGTABLE_QUIRK_ARM_MTK_4GB BIT(3) #define IO_PGTABLE_QUIRK_NO_DMA BIT(4) + #define IO_PGTABLE_QUIRK_NON_STRICT BIT(5) unsigned long quirks; unsigned long pgsize_bitmap; unsigned int ias; |