diff options
| author |   Shameer Kolothum <shameerali.kolothum.thodi@huawei.com> | 2022-06-15 11:10:36 +0100 |
|---|---|---|
| committer |   Joerg Roedel <jroedel@suse.de> | 2022-07-06 12:51:10 +0200 |
| commit | 3b7e2482f9a3f2e99628048b945c9c6cc53bd38e (patch) | |
| tree | edeb0f7c7f4ff00e5aab01c902bf5ea967b8d1c0 /include/linux/iommu.h | |
| parent | iommu/dma: Fix race condition during iova_domain initialization (diff) | |
| download | wireguard-linux-3b7e2482f9a3f2e99628048b945c9c6cc53bd38e.tar.xz wireguard-linux-3b7e2482f9a3f2e99628048b945c9c6cc53bd38e.zip | |
iommu: Introduce a callback to struct iommu_resv_region
A callback is introduced to struct iommu_resv_region to free memory
allocations associated with the reserved region. This will be useful
when we introduce support for IORT RMR based reserved regions.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Steven Price <steven.price@arm.com>
Tested-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Tested-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
Acked-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/20220615101044.1972-2-shameerali.kolothum.thodi@huawei.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'include/linux/iommu.h')
| -rw-r--r-- | include/linux/iommu.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 5e1afe169549..b22ffa6bc4a9 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -135,6 +135,7 @@ enum iommu_resv_type { * @length: Length of the region in bytes * @prot: IOMMU Protection flags (READ/WRITE/...) * @type: Type of the reserved region + * @free: Callback to free associated memory allocations */ struct iommu_resv_region { struct list_head list; @@ -142,6 +143,7 @@ struct iommu_resv_region { size_t length; int prot; enum iommu_resv_type type; + void (*free)(struct device *dev, struct iommu_resv_region *region); }; /** |