From: Suravee Suthikulpanit <suravee.suthikulpa...@amd.com>
commit 4165bf015ba9454f45beaad621d16c516d5c5afe upstream.
According to the AMD IOMMU spec, the commit 73db2fc595f3
("iommu/amd: Increase interrupt remapping table limit to 512 entries")
also requires the interrupt table length (IntTabLen) to be set to 9
(power of 2) in the device table mapping entry (DTE).
Fixes: 73db2fc595f3 ("iommu/amd: Increase interrupt remapping table limit to
512 entries")
Reported-by: Jerry Snitselaar <jsnit...@redhat.com>
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpa...@amd.com>
Reviewed-by: Jerry Snitselaar <jsnit...@redhat.com>
Link:
https://lore.kernel.org/r/20201207091920.3052-1-suravee.suthikulpa...@amd.com
Signed-off-by: Will Deacon <w...@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/iommu/amd/amd_iommu_types.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/iommu/amd/amd_iommu_types.h
+++ b/drivers/iommu/amd/amd_iommu_types.h
@@ -254,7 +254,7 @@
#define DTE_IRQ_REMAP_INTCTL_MASK (0x3ULL << 60)
#define DTE_IRQ_TABLE_LEN_MASK (0xfULL << 1)
#define DTE_IRQ_REMAP_INTCTL (2ULL << 60)
-#define DTE_IRQ_TABLE_LEN (8ULL << 1)
+#define DTE_IRQ_TABLE_LEN (9ULL << 1)
#define DTE_IRQ_REMAP_ENABLE 1ULL
#define PAGE_MODE_NONE 0x00
