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Filename Latest commit message Latest commit date
Rex Zhu 5d24af846e drm/amd/pp: Implement get/set_power_profile_mode on smu7
It show what parameters can be configured to tune
the behavior of natural dpm for perf/watt on smu7.

user can select the mode per workload, but even the default per
workload settings are not bulletproof.

user can configure custom settings per different use case
for better perf or better perf/watt.

cat pp_power_profile_mode
NUM        MODE_NAME     SCLK_UP_HYST   SCLK_DOWN_HYST SCLK_ACTIVE_LEVEL     MCLK_UP_HYST   MCLK_DOWN_HYST MCLK_ACTIVE_LEVEL
  0   3D_FULL_SCREEN:        0              100               30                0              100               10
  1     POWER_SAVING:       10                0               30                -                -                -
  2            VIDEO:        -                -                -               10               16               31
  3               VR:        0               11               50                0              100               10
  4          COMPUTE:        0                5               30                -                -                -
  5           CUSTOM:        0                0                0                0                0                0
  *          CURRENT:        0              100               30                0              100               10

Under manual dpm level,

user can echo "0/1/2/3/4">pp_power_profile_mode
to select 3D_FULL_SCREEN/POWER_SAVING/VIDEO/VR/COMPUTE
mode.

echo "5 * * * * * * * *">pp_power_profile_mode
to set custom settings.
"5 * * * * * * * *" mean "CUSTOM enable_sclk SCLK_UP_HYST
SCLK_DOWN_HYST SCLK_ACTIVE_LEVEL enable_mclk MCLK_UP_HYST
MCLK_DOWN_HYST MCLK_ACTIVE_LEVEL"

if the parameter enable_sclk/enable_mclk is true,
driver will update the following parameters to dpm table.
if false, ignore the following parameters.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-06 13:12:13 -05:00
arch unify {de,}mangle_poll(), get rid of kernel-side POLL... 2018-02-11 14:37:22 -08:00
block vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
certs
crypto vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
Documentation drm-misc-next for 4.17: 2018-02-16 09:29:27 +10:00
drivers drm/amd/pp: Implement get/set_power_profile_mode on smu7 2018-03-06 13:12:13 -05:00
firmware
fs vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
include drm/ttm: move ttm_tt_create into ttm_tt.c v2 2018-02-26 23:09:46 -05:00
init
ipc vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
kernel vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
lib Kbuild updates for v4.16 (2nd) 2018-02-09 19:32:41 -08:00
LICENSES
mm vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
net vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
samples
scripts Kbuild updates for v4.16 (2nd) 2018-02-09 19:32:41 -08:00
security vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
sound vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
tools
usr
virt vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS drm-misc-next for 4.17: 2018-02-16 09:29:27 +10:00
Makefile Linux 4.16-rc1 2018-02-11 15:04:29 -08:00
README

Linux kernel
============

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

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.