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9e3a2a6436
In previous mt2712, Both IOMMUs are MM IOMMU, and they will share pgtable. However in the latest SoC, another is infra IOMMU, there is no reason to share pgtable between MM with INFRA IOMMU. This patch manage to implement the two case(sharing and non-sharing pgtable). Currently we use for_each_m4u to loop the 2 HWs. Add the list_head into this macro. In the sharing pgtable case, the list_head is the global "m4ulist". In the non-sharing pgtable case, the list_head is hw_list_head which is a variable in the "data". then for_each_m4u will only loop itself. Signed-off-by: Yong Wu <yong.wu@mediatek.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com> Link: https://lore.kernel.org/r/20220503071427.2285-10-yong.wu@mediatek.com Signed-off-by: Joerg Roedel <jroedel@suse.de> |
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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.
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.