drm/amdgpu: reserve/unreserve vmid by vm ioctl v4

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add reserve/unreserve vmid funtions. Used to reserve
vmids for certain shader debugging functionality that
required a fixed vmid for the life of the debug.

v3:
only reserve vmid from gfxhub
v4:
fix racy condition

Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Chunming Zhou 2017-04-20 16:18:48 +08:00 • committed by Alex Deucher

parent 36bbf3bf9b

commit 1e9ef26fb3

1 changed files with 51 additions and 13 deletions

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

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