swiotlb: Set dev->dma_io_tlb_mem to the swiotlb pool used
Always have the pointer to the swiotlb pool used in struct device. This
could help simplify the code for other pools.
Signed-off-by: Claire Chang <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Tested-by: Stefano Stabellini <[email protected]>
Tested-by: Will Deacon <[email protected]>
Acked-by: Stefano Stabellini <[email protected]>
Signed-off-by: Konrad Rzeszutek Wilk <[email protected]>
diff --git a/include/linux/device.h b/include/linux/device.h
index 59940f1..2a22875 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -423,6 +423,7 @@ struct dev_links_info {
* @dma_pools: Dma pools (if dma'ble device).
* @dma_mem: Internal for coherent mem override.
* @cma_area: Contiguous memory area for dma allocations
+ * @dma_io_tlb_mem: Pointer to the swiotlb pool used. Not for driver use.
* @archdata: For arch-specific additions.
* @of_node: Associated device tree node.
* @fwnode: Associated device node supplied by platform firmware.
@@ -532,6 +533,9 @@ struct device {
struct cma *cma_area; /* contiguous memory area for dma
allocations */
#endif
+#ifdef CONFIG_SWIOTLB
+ struct io_tlb_mem *dma_io_tlb_mem;
+#endif
/* arch specific additions */
struct dev_archdata archdata;
