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-rw-r--r--include/linux/device.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/device.h b/include/linux/device.h
index 580e3eed4b7..af424acd393 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -692,6 +692,7 @@ struct acpi_dev_node {
* @coherent_dma_mask: Like dma_mask, but for alloc_coherent mapping as not all
* hardware supports 64-bit addresses for consistent allocations
* such descriptors.
+ * @dma_pfn_offset: offset of DMA memory range relatively of RAM
* @dma_parms: A low level driver may set these to teach IOMMU code about
* segment limitations.
* @dma_pools: Dma pools (if dma'ble device).
@@ -759,6 +760,7 @@ struct device {
not all hardware supports
64 bit addresses for consistent
allocations such descriptors. */
+ unsigned long dma_pfn_offset;
struct device_dma_parameters *dma_parms;