drm/amdgpu: Reduce VA_RESERVED_BOTTOM to 64KB

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The reservation is there to catch NULL pointer dereferences from the
GPU. Reduce the size to 64KB to make sure that shared virtual address
programming models can map all CPU-accessible virtual addresses for GPU
access. This is also the default for CPU virtual address mappings as
seen in /proc/sys/vm/mmap_min_addr.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Felix Kuehling 2024-01-30 14:34:41 -05:00 • committed by Alex Deucher

parent 876fa5f8a0

commit efe0f34c2b

1 changed files with 2 additions and 2 deletions

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

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