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| author |  Lu Baolu <baolu.lu@linux.intel.com>
| 2024-03-05 20:21:21 +0800 |
|---|---|---|
| committer |  Joerg Roedel <jroedel@suse.de>
| 2024-03-06 17:35:59 +0100 |
| commit | 80ca79f398bff2708ee7a19d5904804415680aad (patch) | |
| tree | 22302fbb51d652c0639dcfe9189224a48abf92ab /drivers/iommu | |
| parent | iommu/vt-d: Remove scalable mode context entry setup from attach_dev (diff) | |
| download | linux-80ca79f398bff2708ee7a19d5904804415680aad.tar.gz linux-80ca79f398bff2708ee7a19d5904804415680aad.tar.bz2 linux-80ca79f398bff2708ee7a19d5904804415680aad.zip | |
iommu/vt-d: Remove scalabe mode in domain_context_clear_one()
domain_context_clear_one() only handles the context entry teardown in
legacy mode. Remove the scalable mode check in it to avoid dead code.
Remove an unnecessary check in the code as well.
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/20240305013305.204605-6-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/intel/iommu.c | 15 |
1 files changed, 1 insertions, 14 deletions
diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c index e752258d42b0..6fb1eb7a78ab 100644 --- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -2124,9 +2124,6 @@ static void domain_context_clear_one(struct device_domain_info *info, u8 bus, u8 struct context_entry *context; u16 did_old; - if (!iommu) - return; - spin_lock(&iommu->lock); context = iommu_context_addr(iommu, bus, devfn, 0); if (!context) { @@ -2134,14 +2131,7 @@ static void domain_context_clear_one(struct device_domain_info *info, u8 bus, u8 return; } - if (sm_supported(iommu)) { - if (hw_pass_through && domain_type_is_si(info->domain)) - did_old = FLPT_DEFAULT_DID; - else - did_old = domain_id_iommu(info->domain, iommu); - } else { - did_old = context_domain_id(context); - } + did_old = context_domain_id(context); context_clear_entry(context); __iommu_flush_cache(iommu, context, sizeof(*context)); @@ -2152,9 +2142,6 @@ static void domain_context_clear_one(struct device_domain_info *info, u8 bus, u8 DMA_CCMD_MASK_NOBIT, DMA_CCMD_DEVICE_INVL); - if (sm_supported(iommu)) - qi_flush_pasid_cache(iommu, did_old, QI_PC_ALL_PASIDS, 0); - iommu->flush.flush_iotlb(iommu, did_old, 0, |