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authorLu Baolu <baolu.lu@linux.intel.com>2021-10-14 08:38:33 +0300
committerJoerg Roedel <jroedel@suse.de>2021-10-18 13:31:48 +0300
commitb34380a6d767c54480a937951e6189a7f9699443 (patch)
tree2fe0a6aa68afc423daabef69136048c6c359ee83 /drivers/iommu
parent914ff7719e8adaf87131dd7cd0a3520afcf89516 (diff)
downloadlinux-b34380a6d767c54480a937951e6189a7f9699443.tar.xz
iommu/vt-d: Remove duplicate identity domain flag
The iommu_domain data structure already has the "type" field to keep the type of a domain. It's unnecessary to have the DOMAIN_FLAG_STATIC_IDENTITY flag in the vt-d implementation. This cleans it up with no functionality change. Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Link: https://lore.kernel.org/r/20210926114535.923263-1-baolu.lu@linux.intel.com Link: https://lore.kernel.org/r/20211014053839.727419-4-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.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c
index abb2599998b1..ec9ceb2dcf57 100644
--- a/drivers/iommu/intel/iommu.c
+++ b/drivers/iommu/intel/iommu.c
@@ -528,7 +528,7 @@ static inline void free_devinfo_mem(void *vaddr)
static inline int domain_type_is_si(struct dmar_domain *domain)
{
- return domain->flags & DOMAIN_FLAG_STATIC_IDENTITY;
+ return domain->domain.type == IOMMU_DOMAIN_IDENTITY;
}
static inline bool domain_use_first_level(struct dmar_domain *domain)
@@ -1996,7 +1996,7 @@ static bool first_level_by_default(void)
return scalable_mode_support() && intel_cap_flts_sanity();
}
-static struct dmar_domain *alloc_domain(int flags)
+static struct dmar_domain *alloc_domain(unsigned int type)
{
struct dmar_domain *domain;
@@ -2006,7 +2006,6 @@ static struct dmar_domain *alloc_domain(int flags)
memset(domain, 0, sizeof(*domain));
domain->nid = NUMA_NO_NODE;
- domain->flags = flags;
if (first_level_by_default())
domain->flags |= DOMAIN_FLAG_USE_FIRST_LEVEL;
domain->has_iotlb_device = false;
@@ -2825,7 +2824,7 @@ static int __init si_domain_init(int hw)
struct device *dev;
int i, nid, ret;
- si_domain = alloc_domain(DOMAIN_FLAG_STATIC_IDENTITY);
+ si_domain = alloc_domain(IOMMU_DOMAIN_IDENTITY);
if (!si_domain)
return -EFAULT;
@@ -4634,7 +4633,7 @@ static struct iommu_domain *intel_iommu_domain_alloc(unsigned type)
case IOMMU_DOMAIN_DMA:
case IOMMU_DOMAIN_DMA_FQ:
case IOMMU_DOMAIN_UNMANAGED:
- dmar_domain = alloc_domain(0);
+ dmar_domain = alloc_domain(type);
if (!dmar_domain) {
pr_err("Can't allocate dmar_domain\n");
return NULL;