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| Filename | Latest commit message | Latest commit date |
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07fdef34d2
.flush_iotlb_all is currently stubbed to arm_smmu_iotlb_sync() since the only time it would ever need to actually do anything is for callers doing their own explicit batching, e.g.: iommu_unmap_fast(domain, ...); iommu_unmap_fast(domain, ...); iommu_iotlb_flush_all(domain, ...); where since io-pgtable still issues the TLBI commands implicitly in the unmap instead of implementing .iotlb_range_add, the "flush" only needs to ensure completion of those already-in-flight invalidations. However, we're about to start using it in anger with flush queues, so let's get a proper implementation wired up. Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com> Reviewed-by: Robin Murphy <robin.murphy@arm.com> [rm: document why it wasn't a bug] Signed-off-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> |
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| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.