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72e71a82d6
This patch adds a new trace event to track the PTE update
events. This specific event will provide information like:
- start and end of virtual memory mapping
- HW engine flags for the map
- physical address for mapping
This will be particularly useful for memory profiling tools
(like RMV) which are monitoring the page table update events.
V2: Added physical address lookup logic in trace point
V3: switch to use __dynamic_array
added nptes int the TPprint arguments list
added page size in the arg list
V4: Addressed Christian's review comments
add start/end instead of seg
use incr instead of page_sz to be accurate
V5: Addressed Christian's review comments:
add pid and vm context information in the event
V6: Re-sequence the variables (put pid and ctx_id first)
Cc: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Shashank Sharma <shashank.sharma@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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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.