drm/amd/pm: reverse mclk and fclk clocks levels for SMU v13.0.4
authorTim Huang <Tim.Huang@amd.com>
Sun, 21 May 2023 01:24:00 +0000 (09:24 +0800)
committerAlex Deucher <alexander.deucher@amd.com>
Wed, 31 May 2023 20:47:40 +0000 (16:47 -0400)
commit6a07826f2057b5fa1c479ba56460195882464270
treedfd4b0bdea2d2d0dfc9a5aa0dc1e69c6c693de72
parent7877cb91f1081754a1487c144d85dc0d2e2e7fc4
drm/amd/pm: reverse mclk and fclk clocks levels for SMU v13.0.4

This patch reverses the DPM clocks levels output of pp_dpm_mclk
and pp_dpm_fclk.

On dGPUs and older APUs we expose the levels from lowest clocks
to highest clocks. But for some APUs, the clocks levels that from
the DFPstateTable are given the reversed orders by PMFW. Like the
memory DPM clocks that are exposed by pp_dpm_mclk.

It's not intuitive that they are reversed on these APUs. All tools
and software that talks to the driver then has to know different ways
to interpret the data depending on the asic.

So we need to reverse them to expose the clocks levels from the
driver consistently.

Signed-off-by: Tim Huang <Tim.Huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_4_ppt.c