Change-Id: I963598ba6eb44bc8620d70e026c0175d1a1de120
Signed-off-by: Chunming Zhou <David1.Zhou at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 30 +++++++++++++++++++++++++++++-
1 file changed, 29 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index de782ae..e5fde84 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2146,18 +2146,46 @@ retry:
amdgpu_atombios_scratch_regs_restore(adev);
}
if (!r) {
+ struct amdgpu_ring *buffer_ring = adev->mman.buffer_funcs_ring;
+
amdgpu_irq_gpu_reset_resume_helper(adev);
r = amdgpu_ib_ring_tests(adev);
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 no problem
+ * after gpu full reset.
+ */
+ if (need_full_reset && !(adev->flags & AMD_IS_APU)) {
+ struct amdgpu_vm *vm, *tmp;
+
+ DRM_INFO("recover page table from shadow\n");
+ amd_sched_rq_block_entity(
+ &buffer_ring->sched.sched_rq[AMD_SCHED_PRIORITY_NORMAL], true);
+ kthread_unpark(buffer_ring->sched.thread);
+ spin_lock(&adev->vm_list_lock);
+ list_for_each_entry_safe(vm, tmp, &adev->vm_list, list) {
+ spin_unlock(&adev->vm_list_lock);
+ amdgpu_vm_recover_page_table_from_shadow(adev, vm);
+ spin_lock(&adev->vm_list_lock);
+ }
+ spin_unlock(&adev->vm_list_lock);
+ amd_sched_rq_block_entity(
+ &buffer_ring->sched.sched_rq[AMD_SCHED_PRIORITY_NORMAL], false);
+ amd_sched_entity_wait_idle(&buffer_ring->sched, &adev->mman.entity);
+ }
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);
+ if ((ring == buffer_ring) && need_full_reset)
+ kthread_park(buffer_ring->sched.thread);
amd_sched_job_recovery(&ring->sched);
kthread_unpark(ring->sched.thread);
}
--
1.9.1
