Yandong Lin d4795f4b66 video: rockchip: mpp: Fix rk3368 page fault
Workaround patch for rk3368:
Need to reset iommu for rk3368, when grf changed.

[   64.542569] rk_iommu ff9a0440.iommu: Page fault at 0x00000000fcbdd800
of type write
[   64.542586] rk_iommu ff9a0440.iommu: iova = 0x00000000fcbdd800:
dte_index: 0x3f2 pte_index: 0x3dd page_offset: 0x800
[   64.542599] rk_iommu ff9a0440.iommu: mmu_dte_addr: 0x000000007ad53000
dte@0x000000007ad53fc8: 0x367c9001 valid: 1 pte@0x00000000367c9f74:
0x2a93c007 valid: 1 page@0x000000002a93c800 flags: 0x6
[   64.542627] mpp_rkvdec ff9a0000.hevc_service: fault addr 0xfcbdd800
status 6b

Signed-off-by: Yandong Lin <yandong.lin@rock-chips.com>
Change-Id: I52f3cff4f8a55c2fac3d33f6468024b46eabde41
2021-01-28 19:12:01 +08:00
2019-02-10 00:33:21 +08:00
2019-02-10 00:33:21 +08:00
2019-02-10 00:33:21 +08:00
2019-08-29 19:45:37 +08:00
2019-08-29 19:45:37 +08:00

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.
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