drm/amdgpu: use user provided hmm_range buffer in amdgpu_ttm_tt_get_user_pages

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update the amdgpu_ttm_tt_get_user_pages and all dependent function
along with it callers to use a user allocated hmm_range buffer instead
hmm layer allocates the buffer.

This is a need to get hmm_range pointers easily accessible
without accessing the bo and that is a requirement for the
userqueue to lock the userptrs effectively.

Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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This commit is contained in:

Sunil Khatri 2025-09-24 12:23:26 +05:30 • committed by Alex Deucher

parent 079ae5118e

commit e095b55155

8 changed files with 38 additions and 26 deletions

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16

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

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6

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

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10

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

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11

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

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2

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

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8

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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7

drivers/gpu/drm/amd/amdkfd/kfd_svm.c

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