diff options
| author | Zenghui Yu <yuzenghui@huawei.com> | 2021-04-07 11:44:48 +0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2021-04-07 13:30:40 +0300 |
| commit | e0bb4b73540495111ff2723e41cf5add2f031021 (patch) | |
| tree | b56a9383fbf8066dc79764fa58c337f330805c50 /drivers/iommu | |
| parent | 6cc7e5a9c6b02507b9be5a99b51e970afa91c85f (diff) | |
| download | linux-e0bb4b73540495111ff2723e41cf5add2f031021.tar.xz | |
iommu/arm-smmu-v3: Remove the unused fields for PREFETCH_CONFIG command
Per SMMUv3 spec, there is no Size and Addr field in the PREFETCH_CONFIG
command and they're not used by the driver. Remove them.
We can add them back if we're going to use PREFETCH_ADDR in the future.
Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Link: https://lore.kernel.org/r/20210407084448.1838-1-yuzenghui@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 2 | ||||
| -rw-r--r-- | drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 2 |
2 files changed, 0 insertions, 4 deletions
diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c index 941ba5484731..b9552120b708 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -245,8 +245,6 @@ static int arm_smmu_cmdq_build_cmd(u64 *cmd, struct arm_smmu_cmdq_ent *ent) break; case CMDQ_OP_PREFETCH_CFG: cmd[0] |= FIELD_PREP(CMDQ_PREFETCH_0_SID, ent->prefetch.sid); - cmd[1] |= FIELD_PREP(CMDQ_PREFETCH_1_SIZE, ent->prefetch.size); - cmd[1] |= ent->prefetch.addr & CMDQ_PREFETCH_1_ADDR_MASK; break; case CMDQ_OP_CFGI_CD: cmd[0] |= FIELD_PREP(CMDQ_CFGI_0_SSID, ent->cfgi.ssid); diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h index 230b6f6b3901..49b11582519a 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h @@ -410,8 +410,6 @@ struct arm_smmu_cmdq_ent { #define CMDQ_OP_PREFETCH_CFG 0x1 struct { u32 sid; - u8 size; - u64 addr; } prefetch; #define CMDQ_OP_CFGI_STE 0x3 |