Thread (21 messages) 21 messages, 5 authors, 2020-07-13
STALE2157d LANDED: 2 (2M)
Revisions (5)
  1. v1 [diff vs current]
  2. resend [diff vs current]
  3. v2 [diff vs current]
  4. v5 [diff vs current]
  5. v6 current

[PATCH v6 08/10] iommu/mediatek: Extend protect pa alignment value

From: Chao Hao <hidden>
Date: 2020-07-03 04:43:10
Also in: linux-devicetree, linux-iommu, linux-mediatek, lkml
Subsystem: iommu subsystem, mediatek iommu driver, the rest · Maintainers: Joerg Roedel, Will Deacon, Yong Wu, Linus Torvalds

Starting with mt6779, iommu needs to extend to 256 bytes from 128
bytes which can send the max number of data for memory protection
pa alignment. So we can use a separate patch to modify it.

Signed-off-by: Chao Hao <redacted>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
---
 drivers/iommu/mtk_iommu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 5c8e141668fc..e71003037ffa 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -98,7 +98,7 @@
 #define F_MMU_INT_ID_LARB_ID(a)			(((a) >> 7) & 0x7)
 #define F_MMU_INT_ID_PORT_ID(a)			(((a) >> 2) & 0x1f)
 
-#define MTK_PROTECT_PA_ALIGN			128
+#define MTK_PROTECT_PA_ALIGN			256
 
 /*
  * Get the local arbiter ID and the portid within the larb arbiter
-- 
2.18.0
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