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7b87c93c8b
Pull all the calculations for building the CD table entry for a mmu_struct into arm_smmu_make_sva_cd(). Call it in the two places installing the SVA CD table entry. Open code the last caller of arm_smmu_update_ctx_desc_devices() and remove the function. Remove arm_smmu_write_ctx_desc() since all callers are gone. Add the locking assertions to arm_smmu_alloc_cd_ptr() since arm_smmu_update_ctx_desc_devices() was the last problematic caller. Remove quiet_cd since all users are gone, arm_smmu_make_sva_cd() creates the same value. The behavior of quiet_cd changes slightly, the old implementation edited the CD in place to set CTXDESC_CD_0_TCR_EPD0 assuming it was a SVA CD entry. This version generates a full CD entry with a 0 TTB0 and relies on arm_smmu_write_cd_entry() to install it hitlessly. Tested-by: Nicolin Chen <nicolinc@nvidia.com> Tested-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com> Reviewed-by: Nicolin Chen <nicolinc@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Link: https://lore.kernel.org/r/7-v9-5040dc602008+177d7-smmuv3_newapi_p2_jgg@nvidia.com Signed-off-by: Will Deacon <will@kernel.org> |
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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 reStructuredText 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.