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72fef4980d
[Why] Accessing GRBM_GFX_CNTL in full access time has risk when VF is doing MMIO attacking. Therefore, VF writing GRBM_GFX_CNTL are blocked by L1 Policy. For RLCG interface, RLCG use SCRATCH_REG2 which is copied from GRBM_GFX_CNTL. [How] Remove writing GRBM_GFX_CNTL in amdgpu_virt_rlcg_reg_rw. v2: Remove directly writing GRBM_GFX_INDEX in amdgpu_virt_rlcg_reg_rw as RLCG interface no need to use it. Signed-off-by: Yifan Zha <Yifan.Zha@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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.