drm/amd/pm: add get_dpm_ultimate_freq function for cyan skillfish

Some clients(e.g., kfd) query sclk/mclk through this function.
As cyan skillfish doesn't support dpm, for sclk, set min/max
to CYAN_SKILLFISH_SCLK_MIN/CYAN_SKILLFISH_SCLK_MAX(to maintain the
existing logic).For others, set both min and max to current value.

Before this patch:
 # /opt/rocm/opencl/bin/clinfo

 Max clock frequency:                           0Mhz

After this patch:
 # /opt/rocm/opencl/bin/clinfo

 Max clock frequency:                           2000Mhz

v2:
 - Maintain the existing min/max sclk logic.(Lijo)
v3:
 - Avoid fetching metrics table twice.(Lijo)

Signed-off-by: Lang Yu <[email protected]>
Reviewed-by: Lijo Lazar <[email protected]>
Reviewed-by: Huang Rui <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

0 files changed, 0 insertions, 0 deletions