drm/amdgpu: validate user queue size constraints

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[ Upstream commit 8079b87c02 ]

Add validation to ensure user queue sizes meet hardware requirements:
- Size must be a power of two for efficient ring buffer wrapping
- Size must be at least AMDGPU_GPU_PAGE_SIZE to prevent undersized allocations

This prevents invalid configurations that could lead to GPU faults or
unexpected behavior.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Jesse Zhang <jesse.zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Jesse.Zhang 2026-01-28 11:35:57 +08:00 • committed by Sasha Levin

parent 25c5065bb6

commit cf2a37be89

1 changed files with 11 additions and 0 deletions

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

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