b45fdeab45
Add emit mem sync callback for sdma_v5_2 In amdgpu sync object test, three threads created jobs to send GFX IB and SDMA IB in sequence. After the first GFX thread joined, sometimes the third thread will reuse the same physical page to store the SDMA IB. There will be a risk that SDMA will read GFX IB in the previous physical page. So it's better to flush the cache before commit sdma IB. Signed-off-by: Jinzhou Su <Jinzhou.Su@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Acked-by: Christian König <christian.koenig@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.