diff options
| author | Lucas De Marchi <lucas.demarchi@intel.com> | 2025-02-28 06:54:14 -0800 |
|---|---|---|
| committer | Lucas De Marchi <lucas.demarchi@intel.com> | 2025-02-28 06:54:14 -0800 |
| commit | 0410c6121529409b08e81a77ae3ee58c657e2243 (patch) | |
| tree | bc9da8b17b25dba10227dd658fce2dbf8adaad7c /drivers/iommu/intel/cache.c | |
| parent | ba757a65d2a28d46a8ccf50538f4f05036983f1b (diff) | |
| parent | 33e26f3544a558e7476eb221ff33173759b3a116 (diff) | |
Merge drm/drm-next into drm-xe-next
Sync to fix conlicts between drm-xe-next and drm-intel-next.
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Diffstat (limited to 'drivers/iommu/intel/cache.c')
| -rw-r--r-- | drivers/iommu/intel/cache.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/iommu/intel/cache.c b/drivers/iommu/intel/cache.c index 09694cca8752..fc35cba59145 100644 --- a/drivers/iommu/intel/cache.c +++ b/drivers/iommu/intel/cache.c @@ -47,6 +47,7 @@ static int cache_tag_assign(struct dmar_domain *domain, u16 did, struct device_domain_info *info = dev_iommu_priv_get(dev); struct intel_iommu *iommu = info->iommu; struct cache_tag *tag, *temp; + struct list_head *prev; unsigned long flags; tag = kzalloc(sizeof(*tag), GFP_KERNEL); @@ -65,6 +66,7 @@ static int cache_tag_assign(struct dmar_domain *domain, u16 did, tag->dev = iommu->iommu.dev; spin_lock_irqsave(&domain->cache_lock, flags); + prev = &domain->cache_tags; list_for_each_entry(temp, &domain->cache_tags, node) { if (cache_tage_match(temp, did, iommu, dev, pasid, type)) { temp->users++; @@ -73,8 +75,15 @@ static int cache_tag_assign(struct dmar_domain *domain, u16 did, trace_cache_tag_assign(temp); return 0; } + if (temp->iommu == iommu) + prev = &temp->node; } - list_add_tail(&tag->node, &domain->cache_tags); + /* + * Link cache tags of same iommu unit together, so corresponding + * flush ops can be batched for iommu unit. + */ + list_add(&tag->node, prev); + spin_unlock_irqrestore(&domain->cache_lock, flags); trace_cache_tag_assign(tag); |