iommu hack for DCP

This is not safe but it should work... Signed-off-by: Asahi Lina <lina@asahilina.net>
AsahiLinux · Mar 21, 2023 · 61599c1 · 61599c1
1 parent bebe37f
commit 61599c1
Showing 1 changed file with 0 additions and 3 deletions.
diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c
@@ -1605,9 +1605,6 @@ static int iommu_dma_get_sgtable(struct device *dev, struct sg_table *sgt,
 	struct page *page;
 	int ret;
 
-	if (iovad->granule > PAGE_SIZE)
-		return -ENXIO;
-
 	if (is_vmalloc_addr(cpu_addr)) {
 		struct page **pages = dma_common_find_pages(cpu_addr);