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authorWill Deacon <will@kernel.org>2019-07-02 18:44:06 +0300
committerWill Deacon <will@kernel.org>2019-07-29 19:22:52 +0300
commit56f8af5e9d38f120cba2c2adb0786fa2dbc901a4 (patch)
treeb46a5f01874bd1543e610949be6171296cd6300e /drivers/iommu/s390-iommu.c
parent4fcf8544fc677fc8af135f1d86b3ba69c4ad429d (diff)
downloadlinux-56f8af5e9d38f120cba2c2adb0786fa2dbc901a4.tar.xz
iommu: Pass struct iommu_iotlb_gather to ->unmap() and ->iotlb_sync()
To allow IOMMU drivers to batch up TLB flushing operations and postpone them until ->iotlb_sync() is called, extend the prototypes for the ->unmap() and ->iotlb_sync() IOMMU ops callbacks to take a pointer to the current iommu_iotlb_gather structure. All affected IOMMU drivers are updated, but there should be no functional change since the extra parameter is ignored for now. Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'drivers/iommu/s390-iommu.c')
-rw-r--r--drivers/iommu/s390-iommu.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/iommu/s390-iommu.c b/drivers/iommu/s390-iommu.c
index 22d4db302c1c..3b0b18e23187 100644
--- a/drivers/iommu/s390-iommu.c
+++ b/drivers/iommu/s390-iommu.c
@@ -314,7 +314,8 @@ static phys_addr_t s390_iommu_iova_to_phys(struct iommu_domain *domain,
}
static size_t s390_iommu_unmap(struct iommu_domain *domain,
- unsigned long iova, size_t size)
+ unsigned long iova, size_t size,
+ struct iommu_iotlb_gather *gather)
{
struct s390_domain *s390_domain = to_s390_domain(domain);
int flags = ZPCI_PTE_INVALID;