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| author | Nadav Amit <namit@vmware.com> | 2021-07-23 02:32:03 -0700 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2021-08-02 11:26:05 +0200 |
| commit | fc65d0acaf23179b94de399c204328fa259acb90 (patch) | |
| tree | c18bd9e40c6e6c214f18e34f7b74cc8699c189bc /include/linux/phy | |
| parent | ee974d9625c405977ef5d9aedc476be1d0362ebf (diff) | |
| download | kernel-fc65d0acaf23179b94de399c204328fa259acb90.tar.gz | |
iommu/amd: Selective flush on unmap
Recent patch attempted to enable selective page flushes on AMD IOMMU but
neglected to adapt amd_iommu_iotlb_sync() to use the selective flushes.
Adapt amd_iommu_iotlb_sync() to use selective flushes and change
amd_iommu_unmap() to collect the flushes. As a defensive measure, to
avoid potential issues as those that the Intel IOMMU driver encountered
recently, flush the page-walk caches by always setting the "pde"
parameter. This can be removed later.
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Will Deacon <will@kernel.org>
Cc: Jiajun Cao <caojiajun@vmware.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Lu Baolu <baolu.lu@linux.intel.com>
Cc: iommu@lists.linux-foundation.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Nadav Amit <namit@vmware.com>
Link: https://lore.kernel.org/r/20210723093209.714328-2-namit@vmware.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'include/linux/phy')
0 files changed, 0 insertions, 0 deletions