hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

iommu/amd: Set DTE[IntTabLen] to represent 512 IRTEs 

According to the AMD IOMMU spec, the commit 73db2fc595
("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: 73db2fc595 ("iommu/amd: Increase interrupt remapping table limit to 512 entries")
Reported-by: Jerry Snitselaar <jsnitsel@redhat.com>
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Link: https://lore.kernel.org/r/20201207091920.3052-1-suravee.suthikulpanit@amd.com
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Suravee Suthikulpanit 2020-12-07 03:19:20 -06:00 committed by Will Deacon
parent d76b42e927
commit 4165bf015b
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/iommu/amd/amd_iommu_types.h
View File

@ -257,7 +257,7 @@
#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