drm/amdgpu: Add a new NPA Address space

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Add a new address space for NPA address management.
This is needed for sharing buffer objects across GPUs
with each running their own OS. The NPA address space
size can change across different HW generations so the
size is initialized during early init of the driver boot
up process.

Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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This commit is contained in:

Mukul Joshi 2026-04-27 19:09:45 -04:00 • committed by Alex Deucher

parent 742beddd51

commit 09152b002f

8 changed files with 45 additions and 3 deletions

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11

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

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2

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

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17

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

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4

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

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1

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

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5

drivers/gpu/drm/amd/amdgpu/gfx_v12_1.c

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2

include/drm/ttm/ttm_resource.h

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6

include/uapi/drm/amdgpu_drm.h

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