drm/amdgpu: add an option to allow gpu partition allocate all available memory

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Current driver reports and limits memory allocation for each partition equally
among partitions using same memory partition. Application may not be able to
use all available memory when run on a partitioned gpu though system still has
enough free memory.

Add an option that app can use to have gpu partition allocate all available
memory.

Signed-off-by: Xiaogang Chen <xiaogang.chen@amd.com>
Reviewed-by: Philip Yang <philip.yang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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This commit is contained in:

Xiaogang Chen 2026-03-31 13:24:17 -05:00 • committed by Alex Deucher

parent f315099fd2

commit e0e9792ea2

5 changed files with 63 additions and 1 deletions

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5

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

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39

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

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17

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

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1

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

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2

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

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