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author | Takashi Iwai <tiwai@suse.de> | 2024-12-20 14:09:45 +0100 |
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committer | Takashi Iwai <tiwai@suse.de> | 2024-12-20 14:09:45 +0100 |
commit | 8cbd01ba9c38eb16f3a572300da486ac544519b7 (patch) | |
tree | e9a800bcb96bf8e937ddf0d420514dccbc6c1a75 /drivers/iommu/intel/cache.c | |
parent | 66a0a2b0473c39ae85c44628d14e4366fdc0aa0d (diff) | |
parent | 32c9c06adb5b157ef259233775a063a43746d699 (diff) | |
download | linux-8cbd01ba9c38eb16f3a572300da486ac544519b7.tar.gz linux-8cbd01ba9c38eb16f3a572300da486ac544519b7.tar.bz2 linux-8cbd01ba9c38eb16f3a572300da486ac544519b7.zip |
Merge tag 'asoc-fix-v6.13-rc3' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v6.13
A mix of quirks and small fixes, nothing too major anywhere.
Diffstat (limited to 'drivers/iommu/intel/cache.c')
-rw-r--r-- | drivers/iommu/intel/cache.c | 34 |
1 files changed, 27 insertions, 7 deletions
diff --git a/drivers/iommu/intel/cache.c b/drivers/iommu/intel/cache.c index e5b89f728ad3..09694cca8752 100644 --- a/drivers/iommu/intel/cache.c +++ b/drivers/iommu/intel/cache.c @@ -105,12 +105,35 @@ static void cache_tag_unassign(struct dmar_domain *domain, u16 did, spin_unlock_irqrestore(&domain->cache_lock, flags); } +/* domain->qi_batch will be freed in iommu_free_domain() path. */ +static int domain_qi_batch_alloc(struct dmar_domain *domain) +{ + unsigned long flags; + int ret = 0; + + spin_lock_irqsave(&domain->cache_lock, flags); + if (domain->qi_batch) + goto out_unlock; + + domain->qi_batch = kzalloc(sizeof(*domain->qi_batch), GFP_ATOMIC); + if (!domain->qi_batch) + ret = -ENOMEM; +out_unlock: + spin_unlock_irqrestore(&domain->cache_lock, flags); + + return ret; +} + static int __cache_tag_assign_domain(struct dmar_domain *domain, u16 did, struct device *dev, ioasid_t pasid) { struct device_domain_info *info = dev_iommu_priv_get(dev); int ret; + ret = domain_qi_batch_alloc(domain); + if (ret) + return ret; + ret = cache_tag_assign(domain, did, dev, pasid, CACHE_TAG_IOTLB); if (ret || !info->ats_enabled) return ret; @@ -139,6 +162,10 @@ static int __cache_tag_assign_parent_domain(struct dmar_domain *domain, u16 did, struct device_domain_info *info = dev_iommu_priv_get(dev); int ret; + ret = domain_qi_batch_alloc(domain); + if (ret) + return ret; + ret = cache_tag_assign(domain, did, dev, pasid, CACHE_TAG_NESTING_IOTLB); if (ret || !info->ats_enabled) return ret; @@ -190,13 +217,6 @@ int cache_tag_assign_domain(struct dmar_domain *domain, u16 did = domain_get_id_for_dev(domain, dev); int ret; - /* domain->qi_bach will be freed in iommu_free_domain() path. */ - if (!domain->qi_batch) { - domain->qi_batch = kzalloc(sizeof(*domain->qi_batch), GFP_KERNEL); - if (!domain->qi_batch) - return -ENOMEM; - } - ret = __cache_tag_assign_domain(domain, did, dev, pasid); if (ret || domain->domain.type != IOMMU_DOMAIN_NESTED) return ret; |