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authorClaire Chang <tientzu@chromium.org>2021-06-19 06:40:34 +0300
committerKonrad Rzeszutek Wilk <konrad@kernel.org>2021-07-14 03:04:37 +0300
commit69031f500865ee3eee19566a1b9c40a189817eaa (patch)
treec14936547a4f2e44f4b9ee89b415766a7975b364 /include/linux/device.h
parent6e675a1c455ea7579c7eaf1a38fe64267039d6fe (diff)
downloadlinux-69031f500865ee3eee19566a1b9c40a189817eaa.tar.xz
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 <tientzu@chromium.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Tested-by: Stefano Stabellini <sstabellini@kernel.org> Tested-by: Will Deacon <will@kernel.org> Acked-by: Stefano Stabellini <sstabellini@kernel.org> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'include/linux/device.h')
-rw-r--r--include/linux/device.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/device.h b/include/linux/device.h
index 59940f1744c1..2a22875238a6 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;