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| author | Manoj Kumar <manoj.kumar3@arm.com> | 2019-08-13 11:43:11 +0100 |
|---|---|---|
| committer | Deepak Pandey <Deepak.Pandey@arm.com> | 2019-08-28 11:11:59 +0530 |
| commit | 5691250385b540d405f386a0d318894e7b8c4ad0 (patch) | |
| tree | 9d8ff410a73a1d640eda009dbab72e4ccda759dc | |
| parent | d16a38b0ae9ed4445820e1e700260f0e054399a7 (diff) | |
iommu/arm-smmu-v3: workaround for ATC_INV_SIZE_ALL in N1SDPN1SDP-2019.09.13
ATC_INV_SIZE_ALL request should automatically translate to ATS
address which is not happening in SMMUv3 version gone into
N1SDP platform. This workaround manually sets the ATS address
field to proper value for ATC_INV_SIZE_ALL command.
Change-Id: If89465be94720a62be85e1e6612f17e93fa9b8a5
Signed-off-by: Manoj Kumar <manoj.kumar3@arm.com>
| -rw-r--r-- | drivers/iommu/arm-smmu-v3.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c index 0fee8f7957ec..7896133231af 100644 --- a/drivers/iommu/arm-smmu-v3.c +++ b/drivers/iommu/arm-smmu-v3.c @@ -443,6 +443,7 @@ struct arm_smmu_cmdq_ent { } tlbi; #define CMDQ_OP_ATC_INV 0x40 + #define ATC_INV_ADDR_ALL 0x7FFFFFFFFFFFF000UL #define ATC_INV_SIZE_ALL 52 struct { u32 sid; @@ -1461,6 +1462,7 @@ arm_smmu_atc_inv_to_cmd(int ssid, unsigned long iova, size_t size, }; if (!size) { + cmd->atc.addr = ATC_INV_ADDR_ALL; cmd->atc.size = ATC_INV_SIZE_ALL; return; } |