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This commit is contained in:
Bernhard Stoeckner
2024-10-22 17:35:00 +02:00
parent c588c3877f
commit 60d85c464b
92 changed files with 1189 additions and 1226 deletions
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24
kernel-open/nvidia-uvm/uvm_channel.c
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@@ -722,7 +722,17 @@ static void internal_channel_submit_work_wlc(uvm_push_t *push)
// Wait for the WLC/LCIC to be primed. This means that PUT == GET + 2
// and a WLC doorbell ring is enough to start work.
UVM_SPIN_WHILE(!uvm_gpu_tracking_semaphore_is_completed(&lcic_channel->tracking_sem), &spin);
UVM_SPIN_WHILE(!uvm_gpu_tracking_semaphore_is_completed(&lcic_channel->tracking_sem), &spin) {
NV_STATUS status = uvm_channel_check_errors(lcic_channel);
if (status != NV_OK) {
UVM_ASSERT(uvm_global_get_status() != NV_OK);
// If there's a global fatal error we can't communicate with the GPU
// and the below launch sequence doesn't work.
UVM_ERR_PRINT_NV_STATUS("Failed to wait for LCIC channel (%s) completion.", status, lcic_channel->name);
return;
}
}
// Executing WLC adds an extra job to LCIC
++lcic_channel->tracking_sem.queued_value;
@@ -3250,7 +3260,17 @@ static void channel_manager_stop_wlc(uvm_channel_manager_t *manager)
// Wait for the WLC/LCIC to be primed. This means that PUT == GET + 2
// and a WLC doorbell ring is enough to start work.
UVM_SPIN_WHILE(!uvm_gpu_tracking_semaphore_is_completed(&channel->tracking_sem), &spin);
UVM_SPIN_WHILE(!uvm_gpu_tracking_semaphore_is_completed(&channel->tracking_sem), &spin) {
status = uvm_channel_check_errors(channel);
if (status != NV_OK) {
UVM_ERR_PRINT_NV_STATUS("Failed to wait for LCIC channel (%s) completion", status, channel->name);
break;
}
}
// Continue on error and attempt to stop WLC below. This can lead to
// channel destruction with mismatched GET and PUT pointers. RM will
// print errors if that's the case, but channel destruction succeeeds.
}
status = uvm_push_begin(manager, UVM_CHANNEL_TYPE_SEC2, &push, "Stop WLC channels");