summaryrefslogtreecommitdiff
path: root/drivers/iommu
diff options
context:
space:
mode:
authorLu Baolu <baolu.lu@linux.intel.com>2024-03-05 20:21:21 +0800
committerJoerg Roedel <jroedel@suse.de>2024-03-06 17:35:59 +0100
commit80ca79f398bff2708ee7a19d5904804415680aad (patch)
tree22302fbb51d652c0639dcfe9189224a48abf92ab /drivers/iommu
parenta016e53843ed8bb9cccb832768e2be9856b0a913 (diff)
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.c15
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,