<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-2022-jp"> <meta name="Generator" content="Microsoft Exchange Server"> <style></style> </head> <body> <div> <div name="x_smartisanmessageid" id="x_smartisan1522151762126"></div> then how to keep unique lru order? any ideas? To stable performance, we have to keep unique lru order, otherwise like the issue I look into, sometimes F1game is 40fps, sometimes 28fps...even re-validate allowed domains BO. The left root cause is the moved BOs are not same. send from Smartisan Pro <style type="text/css">  </style> <div class="x_quote"> <div style="margin:0 0px; font-size:105%">Christian K$BrY(Big <ckoenig.leichtzumerken@gmail.com> $BP2(B 2018$BG/(B3$B7n(B27$BF|(B $B2<8a(B6:50$B<LF;!'(B</div> </div> </div> <div class="PlainText">NAK, we already tried that and it is really not a good idea because it massively increases the per submission overhead. Christian. Am 27.03.2018 um 12:16 schrieb Chunming Zhou: > Change-Id: Ibad84ed585b0746867a5f4cd1eadc2273e7cf596 > Signed-off-by: Chunming Zhou <david1.zhou@amd.com> > --- > drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 2 ++ > drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 15 +++++++++++++++ > drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 1 + > 3 files changed, 18 insertions(+) > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c > index 383bf2d31c92..414e61799236 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c > @@ -919,6 +919,8 @@ static int amdgpu_bo_vm_update_pte(struct amdgpu_cs_parser *p) > } > } > > + amdgpu_vm_refresh_lru(adev, vm); > + > return r; > } > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c > index 5e35e23511cf..8ad2bb705765 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c > @@ -1902,6 +1902,21 @@ struct amdgpu_bo_va *amdgpu_vm_bo_add(struct amdgpu_device *adev, > return bo_va; > } > > +void amdgpu_vm_refresh_lru(struct amdgpu_device *adev, struct amdgpu_vm *vm) > +{ > + struct ttm_bo_global *glob = adev->mman.bdev.glob; > + struct amdgpu_vm_bo_base *bo_base; > + > + spin_lock(&vm->status_lock); > + list_for_each_entry(bo_base, &vm->vm_bo_list, vm_bo) { > + spin_lock(&glob->lru_lock); > + ttm_bo_move_to_lru_tail(&bo_base->bo->tbo); > + if (bo_base->bo->shadow) > + ttm_bo_move_to_lru_tail(&bo_base->bo->shadow->tbo); > + spin_unlock(&glob->lru_lock); > + } > + spin_unlock(&vm->status_lock); > +} > > /** > * amdgpu_vm_bo_insert_mapping - insert a new mapping > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h > index 1886a561c84e..e01895581489 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h > @@ -285,6 +285,7 @@ int amdgpu_vm_clear_freed(struct amdgpu_device *adev, > struct dma_fence **fence); > int amdgpu_vm_handle_moved(struct amdgpu_device *adev, > struct amdgpu_vm *vm); > +void amdgpu_vm_refresh_lru(struct amdgpu_device *adev, struct amdgpu_vm *vm); > int amdgpu_vm_bo_update(struct amdgpu_device *adev, > struct amdgpu_bo_va *bo_va, > bool clear); </div> </body> </html>