drm/amdgpu: fix xgmi perfmon a-b-a problem

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Mapping hw counters per event config will cause ABA problems so map per
event instead.

v2: Discontinue starting perf counters if add fails.  Make it clear what's
happening with pmc_start.

Signed-off-by: Jonathan Kim <jonathan.kim@amd.com>
Reviewed-by: Harish Kasiviswanathan <harish.kasiviswanathan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

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Jonathan Kim 2020-06-18 10:40:14 -04:00 • committed by Alex Deucher

parent 4b74ed75ae

commit 576e0ec26b

3 changed files with 78 additions and 75 deletions

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6

drivers/gpu/drm/amd/amdgpu/amdgpu_df.h

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42

drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.c

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105

drivers/gpu/drm/amd/amdgpu/df_v3_6.c

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