drm/amd/pm: smu_v14_0_0: use find_clk_level() for DPM level marking

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Replace the simple exact-match loop in emit_clk_levels with a call
to smu_v14_0_0_find_clk_level() introduced in patch 1.  The helper
already handles both exact and closest-match semantics.

Build a stack-local frequency table from the DPM levels (using
reverse index for SMU_MCLK since MemPstateTable stores levels
high-to-low), then call the helper once to find the active level.

The SMU reports time-filtered average frequencies that often do not
match any DPM table entry exactly.  Without closest-match fallback,
MCLK, FCLK and other clocks show DPM levels but never display the
* marker, breaking userspace tools that rely on it to identify the
active frequency.

Signed-off-by: Priya Hosur <Priya.Hosur@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Priya Hosur 2026-06-15 10:33:12 +05:30 • committed by Alex Deucher

parent ae60a2b05f

commit 39dfe8a7d7

1 changed files with 22 additions and 7 deletions

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drivers/gpu/drm/amd/pm/swsmu/smu14/smu_v14_0_0_ppt.c

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