Invalidate the caching of the intermediate L1ST descriptor after it has been updated.
Signed-off-by: Zhen Lei <thunder.leiz...@huawei.com> --- drivers/iommu/arm-smmu-v3.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c index 0d28402..2072897 100644 --- a/drivers/iommu/arm-smmu-v3.c +++ b/drivers/iommu/arm-smmu-v3.c @@ -1072,13 +1072,14 @@ static void arm_smmu_write_ctx_desc(struct arm_smmu_device *smmu, *dst = cpu_to_le64(val); } -static void arm_smmu_sync_ste_for_sid(struct arm_smmu_device *smmu, u32 sid) +static void +__arm_smmu_sync_ste_for_sid(struct arm_smmu_device *smmu, u32 sid, bool leaf) { struct arm_smmu_cmdq_ent cmd = { .opcode = CMDQ_OP_CFGI_STE, .cfgi = { .sid = sid, - .leaf = true, + .leaf = leaf, }, }; @@ -1086,6 +1087,16 @@ static void arm_smmu_sync_ste_for_sid(struct arm_smmu_device *smmu, u32 sid) arm_smmu_cmdq_issue_sync(smmu); } +static void arm_smmu_sync_ste_for_sid(struct arm_smmu_device *smmu, u32 sid) +{ + __arm_smmu_sync_ste_for_sid(smmu, sid, true); +} + +static void arm_smmu_sync_std_for_sid(struct arm_smmu_device *smmu, u32 sid) +{ + __arm_smmu_sync_ste_for_sid(smmu, sid, false); +} + static void arm_smmu_write_strtab_ent(struct arm_smmu_device *smmu, u32 sid, __le64 *dst, struct arm_smmu_strtab_ent *ste) { @@ -1233,6 +1244,7 @@ static int arm_smmu_init_l2_strtab(struct arm_smmu_device *smmu, u32 sid) arm_smmu_init_bypass_stes(desc->l2ptr, 1 << STRTAB_SPLIT); arm_smmu_write_strtab_l1_desc(strtab, desc); + arm_smmu_sync_std_for_sid(smmu, sid); return 0; } -- 1.8.3