[PATCH 3/5] iommu/dart: Set DMA domain for locked DARTs
From: Alyssa Rosenzweig <hidden>
Date: 2025-02-10 19:40:26
Also in:
asahi, linux-iommu, lkml
Subsystem:
arm/apple machine support, iommu subsystem, the rest · Maintainers:
Sven Peter, Janne Grunau, Joerg Roedel, Will Deacon, Linus Torvalds
This is required. Signed-off-by: Alyssa Rosenzweig <redacted> --- drivers/iommu/apple-dart.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/iommu/apple-dart.c b/drivers/iommu/apple-dart.c
index 9c74a95eb7e819e94ab2fb47ed0d411a1eba8bf7..9c6f780dc7220096ed6bba692fa1a4bd859b0d61 100644
--- a/drivers/iommu/apple-dart.c
+++ b/drivers/iommu/apple-dart.c@@ -941,6 +941,8 @@ static int apple_dart_def_domain_type(struct device *dev) return IOMMU_DOMAIN_IDENTITY; if (!cfg->stream_maps[0].dart->supports_bypass) return IOMMU_DOMAIN_DMA; + if (cfg->stream_maps[0].dart->locked) + return IOMMU_DOMAIN_DMA; return 0; }
--
2.48.1