Ping... > -----Original Message----- > From: Chunming Zhou [mailto:David1.Zhou at amd.com] > Sent: Monday, August 15, 2016 2:07 PM > To: amd-gfx at lists.freedesktop.org > Cc: Zhou, David(ChunMing) <David1.Zhou at amd.com> > Subject: [PATCH 00/10] shadow page table support V4 > > Since we cannot ensure VRAM is consistent after a GPU reset, page table > shadowing is necessary. Shadowed page tables are, in a sense, a method to > recover the consistent state of the page tables before the reset occurred. > > We need to allocate GTT bo as the shadow of VRAM bo when creating page > table, and make them the same. After gpu reset, we will need to use SDMA > to copy GTT bo content to VRAM bo, then page table will be recoveried. > > > V2: > Shadow bo uses a shadow entity running on normal run queue, after gpu > reset, we need to wait for all shadow jobs finished first, then recovery page > table from shadow. > > V3: > Addressed Christian comments for shadow bo part. > > V4: > Switch back to update page table twice (one of two is for shadow) > > Chunming Zhou (10): > drm/amdgpu: add direct submision option for copy_buffer > drm/amdgpu: sync bo and shadow V2 > drm/amdgpu: implement vm recovery function from shadow V2 > drm/amdgpu: update pd shadow while updating pd > drm/amdgpu: update pt shadow while updating pt > drm/amdgpu: link all vm clients > drm/amdgpu: add vm_list_lock > drm/amdgpu: recover page tables after gpu reset > drm/amdgpu: add need backup function > drm/amdgpu: add backup condition for vm > > drivers/gpu/drm/amd/amdgpu/amdgpu.h | 14 ++- > drivers/gpu/drm/amd/amdgpu/amdgpu_benchmark.c | 3 +- > drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 6 + > drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 38 +++++- > drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 43 +++++++ > drivers/gpu/drm/amd/amdgpu/amdgpu_object.h | 5 + > drivers/gpu/drm/amd/amdgpu/amdgpu_test.c | 4 +- > drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 21 +++- > drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 163 > +++++++++++++++++++++----- > 9 files changed, 257 insertions(+), 40 deletions(-) > > -- > 1.9.1