From: Matthew Rosato <mjrosato@linux.ibm.com>
To: joro@8bytes.org, will@kernel.org, robin.murphy@arm.com,
gerald.schaefer@linux.ibm.com, schnelle@linux.ibm.com
Cc: hca@linux.ibm.com, gor@linux.ibm.com, agordeev@linux.ibm.com,
svens@linux.ibm.com, borntraeger@linux.ibm.com,
farman@linux.ibm.com, clegoate@redhat.com, iommu@lists.linux.dev,
linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org
Subject: [PATCH 5/6] iommu: document missing def_domain_type return
Date: Mon, 9 Dec 2024 14:24:02 -0500 [thread overview]
Message-ID: <20241209192403.107090-6-mjrosato@linux.ibm.com> (raw)
In-Reply-To: <20241209192403.107090-1-mjrosato@linux.ibm.com>
In addition to IOMMU_DOMAIN_DMA, def_domain_type can also return
IOMMU_DOMAIN_DMA_FQ when applicable, else flush queues will never be
used.
Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
---
include/linux/iommu.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 05279109c732..d0da1918d2de 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -585,6 +585,7 @@ iommu_copy_struct_from_full_user_array(void *kdst, size_t kdst_entry_size,
* @def_domain_type: device default domain type, return value:
* - IOMMU_DOMAIN_IDENTITY: must use an identity domain
* - IOMMU_DOMAIN_DMA: must use a dma domain
+ * - IOMMU_DOMAIN_DMA_FQ: dma domain with batch invalidation
* - 0: use the default setting
* @default_domain_ops: the default ops for domains
* @remove_dev_pasid: Remove any translation configurations of a specific
--
2.47.0
next prev parent reply other threads:[~2024-12-09 19:24 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-09 19:23 [PATCH 0/6] iommu/s390: add support for IOMMU passthrough Matthew Rosato
2024-12-09 19:23 ` [PATCH 1/6] s390/pci: check for relaxed translation capability Matthew Rosato
2024-12-09 19:23 ` [PATCH 2/6] s390: enable ARCH_HAS_PHYS_TO_DMA Matthew Rosato
2024-12-10 4:33 ` Christoph Hellwig
2024-12-10 21:23 ` Matthew Rosato
2024-12-09 19:24 ` [PATCH 3/6] iommu/s390: implement iommu passthrough via identity domain Matthew Rosato
2024-12-09 19:24 ` [PATCH 4/6] iommu: add routine to check strict setting Matthew Rosato
2024-12-09 19:24 ` Matthew Rosato [this message]
2024-12-10 2:57 ` [PATCH 5/6] iommu: document missing def_domain_type return Baolu Lu
2024-12-10 16:26 ` Matthew Rosato
2024-12-10 18:42 ` Robin Murphy
2024-12-10 22:06 ` Matthew Rosato
2024-12-11 18:42 ` Robin Murphy
2024-12-09 19:24 ` [PATCH 6/6] iommu/s390: implement def_domain_type Matthew Rosato
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