Change-Id: I963598ba6eb44bc8620d70e026c0175d1a1de120
Signed-off-by: Chunming Zhou <David1.Zhou at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 28 +++++++++++++++++++++++++++-
1 file changed, 27 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 9247aca..75bec57 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2202,13 +2202,39 @@ 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;
+
+ DRM_INFO("recover vram bo from shadow\n");
+ spin_lock(&adev->shadow_list_lock);
+ list_for_each_entry_safe(bo, tmp, &adev->shadow_list, shadow_list) {
+ spin_unlock(&adev->shadow_list_lock);
+ amdgpu_bo_recover_vram_from_shadow(adev, ring, bo, &fence);
+ spin_lock(&adev->shadow_list_lock);
+ }
+ spin_unlock(&adev->shadow_list_lock);
+ if (fence) {
+ r = fence_wait(fence, true);
+ 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;
+
+ DRM_INFO("ring:%d recover jobs\n", ring->idx);
amd_sched_job_recovery(&ring->sched);
kthread_unpark(ring->sched.thread);
}
--
1.9.1
