diff options
| author | Jean-Philippe Brucker <jean-philippe@linaro.org> | 2020-02-24 17:58:45 +0100 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2020-03-18 22:32:25 +0100 |
| commit | edd0351e7bc49555d8b5ad8438a65a7ca262c9f0 (patch) | |
| tree | b5fb39cdb40ceafed79eeeac4b2481b44f45a83c /drivers/iommu/arm-smmu-v3.c | |
| parent | iommu/arm-smmu-v3: Add command queue batching helpers (diff) | |
| download | linux-edd0351e7bc49555d8b5ad8438a65a7ca262c9f0.tar.xz linux-edd0351e7bc49555d8b5ad8438a65a7ca262c9f0.zip | |
iommu/arm-smmu-v3: Batch context descriptor invalidation
Rather than publishing one command at a time when invalidating a context
descriptor, batch the commands for all SIDs in the domain.
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'drivers/iommu/arm-smmu-v3.c')
| -rw-r--r-- | drivers/iommu/arm-smmu-v3.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c index beeec366bc41..12b2a0fa747e 100644 --- a/drivers/iommu/arm-smmu-v3.c +++ b/drivers/iommu/arm-smmu-v3.c @@ -1512,6 +1512,7 @@ static void arm_smmu_sync_cd(struct arm_smmu_domain *smmu_domain, size_t i; unsigned long flags; struct arm_smmu_master *master; + struct arm_smmu_cmdq_batch cmds = {}; struct arm_smmu_device *smmu = smmu_domain->smmu; struct arm_smmu_cmdq_ent cmd = { .opcode = CMDQ_OP_CFGI_CD, @@ -1525,12 +1526,12 @@ static void arm_smmu_sync_cd(struct arm_smmu_domain *smmu_domain, list_for_each_entry(master, &smmu_domain->devices, domain_head) { for (i = 0; i < master->num_sids; i++) { cmd.cfgi.sid = master->sids[i]; - arm_smmu_cmdq_issue_cmd(smmu, &cmd); + arm_smmu_cmdq_batch_add(smmu, &cmds, &cmd); } } spin_unlock_irqrestore(&smmu_domain->devices_lock, flags); - arm_smmu_cmdq_issue_sync(smmu); + arm_smmu_cmdq_batch_submit(smmu, &cmds); } static int arm_smmu_alloc_cd_leaf_table(struct arm_smmu_device *smmu, |