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| Filename | Latest commit message | Latest commit date |
|---|---|---|
a4233cc944
Reading the sysfs files pp_sclk_od and pp_mclk_od return the percentage difference between the VBIOS-provided default frequency and the current (possibly user-set) frequency in the highest SCLK and MCLK DPM states, respectively. Writing to these files provides an easy mechanism for setting a higher-than-default maximum frequency. We normally only allow values >= 0 to be written here. However, with the addition of pp_od_clk_voltage, we now allow users to set custom DPM tables. If they then set the maximum DPM state to something less than the default, later reads of pp_*_od should return a negative value. The highest DPM state is now less than the VBIOS-provided default, so the percentage is negative. The math to calculate this was originally performed with unsigned values, meaning reads that should return negative values returned meaningless data. This patch corrects that issue and normalizes how all of the calculations are done across the various hwmgr types. Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Joseph Greathouse <Joseph.Greathouse@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.