diff options
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 76fd2dec7b42..c38dc47cd767 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -2060,6 +2060,35 @@ bool amdgpu_need_backup(struct amdgpu_device *adev) return amdgpu_lockup_timeout > 0 ? true : false; } +static int amdgpu_recover_vram_from_shadow(struct amdgpu_device *adev, + struct amdgpu_ring *ring, + struct amdgpu_bo *bo, + struct fence **fence) +{ + uint32_t domain; + int r; + + if (!bo->shadow) + return 0; + + r = amdgpu_bo_reserve(bo, false); + if (r) + return r; + domain = amdgpu_mem_type_to_domain(bo->tbo.mem.mem_type); + /* if bo has been evicted, then no need to recover */ + if (domain == AMDGPU_GEM_DOMAIN_VRAM) { + r = amdgpu_bo_restore_from_shadow(adev, ring, bo, + NULL, fence, true); + if (r) { + DRM_ERROR("recover page table failed!\n"); + goto err; + } + } +err: + amdgpu_bo_unreserve(bo); + return r; +} + /** * amdgpu_gpu_reset - reset the asic * @@ -2138,13 +2167,46 @@ retry: if (r) { dev_err(adev->dev, "ib ring test failed (%d).\n", r); r = amdgpu_suspend(adev); + need_full_reset = true; goto retry; } + /** + * recovery vm page tables, since we cannot depend on VRAM is + * consistent after gpu full reset. + */ + if (need_full_reset && amdgpu_need_backup(adev)) { + struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring; + struct amdgpu_bo *bo, *tmp; + struct fence *fence = NULL, *next = NULL; + + DRM_INFO("recover vram bo from shadow\n"); + mutex_lock(&adev->shadow_list_lock); + list_for_each_entry_safe(bo, tmp, &adev->shadow_list, shadow_list) { + amdgpu_recover_vram_from_shadow(adev, ring, bo, &next); + if (fence) { + r = fence_wait(fence, false); + if (r) { + WARN(r, "recovery from shadow isn't comleted\n"); + break; + } + } + fence_put(fence); + fence = next; + } + mutex_unlock(&adev->shadow_list_lock); + if (fence) { + r = fence_wait(fence, false); + if (r) + WARN(r, "recovery from shadow isn't comleted\n"); + } + fence_put(fence); + } for (i = 0; i < AMDGPU_MAX_RINGS; ++i) { struct amdgpu_ring *ring = adev->rings[i]; if (!ring) continue; + amd_sched_job_recovery(&ring->sched); kthread_unpark(ring->sched.thread); } |