drm/amd/pm: add GFXCLK/SCLK clocks level print support for APUs

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add support that allow the userspace tool like RGP to get the GFX clock
value at runtime, the fix follow the old way to show the min/current/max
clocks level for compatible consideration.

=== Test ===
$ cat /sys/class/drm/card0/device/pp_dpm_sclk
0: 200Mhz *
1: 1100Mhz
2: 1600Mhz

then run stress test on one APU system.
$ cat /sys/class/drm/card0/device/pp_dpm_sclk
0: 200Mhz
1: 1040Mhz *
2: 1600Mhz

The current GFXCLK value is updated at runtime.

BugLink: https://gitlab.freedesktop.org/mesa/mesa/-/issues/5260
Reviewed-by: Huang Ray <Ray.Huang@amd.com>
Signed-off-by: Perry Yuan <Perry.Yuan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Perry Yuan 2021-10-28 06:05:42 -04:00 • committed by Alex Deucher

parent 7eb0502ac0

commit 48c19a95f1

4 changed files with 74 additions and 2 deletions

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22

drivers/gpu/drm/amd/pm/swsmu/smu11/cyan_skillfish_ppt.c

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26

drivers/gpu/drm/amd/pm/swsmu/smu11/vangogh_ppt.c

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27

drivers/gpu/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c

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1

drivers/gpu/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.h

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