diff options
| author | Vivek Gautam <vivek.gautam@codeaurora.org> | 2019-04-22 12:40:36 +0530 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2019-04-23 12:23:16 +0100 |
| commit | bc580b56cb7888d1f09fff8a50270228fb834ae8 (patch) | |
| tree | d98cab92214aa7770dad659d7aa27341b5b4b04b /drivers/iommu/arm-smmu-regs.h | |
| parent | 3f54c447df34ff9efac7809a4a80fd3208efc619 (diff) | |
| download | linux-bc580b56cb7888d1f09fff8a50270228fb834ae8.tar.gz linux-bc580b56cb7888d1f09fff8a50270228fb834ae8.tar.bz2 linux-bc580b56cb7888d1f09fff8a50270228fb834ae8.zip | |
iommu/arm-smmu: Log CBFRSYNRA register on context fault
Bits[15:0] in CBFRSYNRA register contain information about
StreamID of the incoming transaction that generated the
fault. Dump CBFRSYNRA register to get this info.
This is specially useful in a distributed SMMU architecture
where multiple masters are connected to the SMMU.
SID information helps to quickly identify the faulting
master device.
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'drivers/iommu/arm-smmu-regs.h')
| -rw-r--r-- | drivers/iommu/arm-smmu-regs.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/iommu/arm-smmu-regs.h b/drivers/iommu/arm-smmu-regs.h index a1226e4ab5f8..e9132a926761 100644 --- a/drivers/iommu/arm-smmu-regs.h +++ b/drivers/iommu/arm-smmu-regs.h @@ -147,6 +147,8 @@ enum arm_smmu_s2cr_privcfg { #define CBAR_IRPTNDX_SHIFT 24 #define CBAR_IRPTNDX_MASK 0xff +#define ARM_SMMU_GR1_CBFRSYNRA(n) (0x400 + ((n) << 2)) + #define ARM_SMMU_GR1_CBA2R(n) (0x800 + ((n) << 2)) #define CBA2R_RW64_32BIT (0 << 0) #define CBA2R_RW64_64BIT (1 << 0) |