drm/amdgpu: guard zero divisors in soc_v1_0 partition code

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Abort driver load when num_mem_partitions is zero since operation is
unreliable without valid memory partition info. Skip absent resources
in soc_v1_0_get_xcp_res_info() to avoid divide-by-zero on firmware-
reported zero instance counts.

v2: Remove redundant checks (Lijo)
v3: Return error instead when num_mem_partitions is zero (Lijo)

Signed-off-by: Asad Kamal <asad.kamal@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Asad Kamal 2026-06-16 22:25:08 +08:00 • committed by Alex Deucher

parent 0eda57ee30

commit a101cfbd27

2 changed files with 10 additions and 3 deletions

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9

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

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4

drivers/gpu/drm/amd/amdgpu/soc_v1_0.c

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