From 80ca79f398bff2708ee7a19d5904804415680aad Mon Sep 17 00:00:00 2001 From: Lu Baolu Date: Tue, 5 Mar 2024 20:21:21 +0800 Subject: 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 Reviewed-by: Kevin Tian Link: https://lore.kernel.org/r/20240305013305.204605-6-baolu.lu@linux.intel.com Signed-off-by: Joerg Roedel --- drivers/iommu/intel/iommu.c | 15 +-------------- 1 file changed, 1 insertion(+), 14 deletions(-) (limited to 'drivers/iommu') 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, -- cgit v1.2.3