On 2018年05月10日 13:07, Zhang, Jerry (Junwei) wrote:
On 05/09/2018 02:45 PM, Chunming Zhou wrote:
move implemenation from ttm to amdgpu driver. (suggested by Christian) per-vm-lru is because of per-vm-bo, which has no chance to refresh lru, the nagtive effect is game performance isn't stable. so all per-vm-bo should have a default order, every per-vm-bo has its priority, relying on its creation index. When doing CS, if any normal bo is used, then all per-vm-bo should be used, so per-vm-bo prioirty >= normal bo priority.
Above is per-vm-lru starting point.
How do you think that we create the per vm bo as priority 1 and kernel bo as priority 2 accordingly?
Yeah, then how to fix per-vm-bo order? I think we need set priority for every per-vm-bo. Because of lacking bo list, the per-vm-bo lru can only depend on priority.
Regards, David Zhou
Will that help to make some improvement?
Jerry
Chunming Zhou (13): ttm: abstruct evictable bo ttm: allow driver has own lru policy drm/amdgpu: add lru backend for amdgpu driver drm/amdgpu: init/fini vm lru drm/amdgpu: pass vm lru to buffer object drm/amdgpu: add amdgpu lru implementation drm/ttm: export ttm_bo_ref_bug drm/amdgpu: use RB tree instead of link list drm/amdgpu: add bo index counter drm/amdgpu: bulk move per vm bo ttm: export ttm_transfered_destroy drm/amdgpu: transferred bo doesn't use vm lru drm/amdgpu: free vm lru when vm fini
drivers/gpu/drm/amd/amdgpu/amdgpu.h | 5 +- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 1 + drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 14 +- drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 9 +- drivers/gpu/drm/amd/amdgpu/amdgpu_object.h | 4 + drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 7 + drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 242 ++++++++++++++++++++++++++++- drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 25 +++ drivers/gpu/drm/ttm/ttm_bo.c | 92 +++++++---- drivers/gpu/drm/ttm/ttm_bo_util.c | 3 +- include/drm/ttm/ttm_bo_driver.h | 52 +++++++ 12 files changed, 419 insertions(+), 37 deletions(-)
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