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7e99a68e34
Add basic recovery messages that describe what's happening during the recovery process. Hide this under a new recovery specific GPU debug log flag. The logs look like: [ 276.000733] nvgpu: 17000000.gv11b gv11b_fifo_recover:162 [DBG] REC | Recovery starting [ 276.000737] nvgpu: 17000000.gv11b gv11b_fifo_recover:163 [DBG] REC | ID = 0 [ 276.000741] nvgpu: 17000000.gv11b gv11b_fifo_recover:164 [DBG] REC | id_type = TSG [ 276.000745] nvgpu: 17000000.gv11b gv11b_fifo_recover:165 [DBG] REC | rc_type = MMU fault [ 276.000748] nvgpu: 17000000.gv11b gv11b_fifo_recover:166 [DBG] REC | Engine bitmask: 0x0 [ 276.000753] nvgpu: 17000000.gv11b gv11b_fifo_recover:170 [DBG] REC | Acquiring engines_reset_mutex [ 276.000756] nvgpu: 17000000.gv11b gv11b_fifo_recover:174 [DBG] REC | Acquiring runlist_lock for active runlists [ 276.000764] nvgpu: 17000000.gv11b gv11b_fifo_recover:185 [DBG] REC | Channels bound to this TSG: [ 276.000767] nvgpu: 17000000.gv11b gv11b_fifo_recover:190 [DBG] REC | 0 | chid 511 [ 276.001098] nvgpu: 17000000.gv11b gv11b_fifo_recover:222 [DBG] REC | PBDMA Bitmask: 0x1 [ 276.001102] nvgpu: 17000000.gv11b gv11b_fifo_recover:228 [DBG] REC | Runlist Bitmask: 0x1 [ 276.001106] nvgpu: 17000000.gv11b gv11b_fifo_recover:240 [DBG] REC | Disabling RL scheduler now [ 276.001126] nvgpu: 17000000.gv11b gv11b_fifo_recover:246 [DBG] REC | Disabling CG/PG now [ 276.189348] nvgpu: 17000000.gv11b gv11b_fifo_recover:259 [DBG] REC | Clearing PBDMA_FAULTED, ENG_FAULTED in CCSR register [ 276.191972] nvgpu: 17000000.gv11b gv11b_fifo_recover:264 [DBG] REC | Disabling TSG [ 276.191983] nvgpu: 17000000.gv11b gv11b_fifo_recover:279 [DBG] REC | Preempting runlists for RC [ 276.192001] nvgpu: 17000000.gv11b gv11b_fifo_recover:288 [DBG] REC | Polling for TSG to be off PBDMA [ 276.192012] nvgpu: 17000000.gv11b gv11b_fifo_recover:296 [DBG] REC | Done! [ 276.192016] nvgpu: 17000000.gv11b gv11b_fifo_recover:306 [DBG] REC | Resetting relevant engines [ 276.192020] nvgpu: 17000000.gv11b gv11b_fifo_recover:318 [DBG] REC | Engine bitmask for RL 0: 0xd [ 276.192024] nvgpu: 17000000.gv11b gv11b_fifo_recover:323 [DBG] REC | > Restting engine: ID=0 [ 276.209567] nvgpu: 17000000.gv11b gv11b_fifo_recover:347 [DBG] REC | Done! [ 276.209572] nvgpu: 17000000.gv11b gv11b_fifo_recover:323 [DBG] REC | > Restting engine: ID=2 [ 276.214290] nvgpu: 17000000.gv11b gv11b_fifo_recover:347 [DBG] REC | Done! [ 276.214295] nvgpu: 17000000.gv11b gv11b_fifo_recover:323 [DBG] REC | > Restting engine: ID=3 [ 276.224986] nvgpu: 17000000.gv11b gv11b_fifo_recover:347 [DBG] REC | Done! [ 276.225013] nvgpu: 17000000.gv11b gv11b_fifo_recover:377 [DBG] REC | Re-enabling runlists [ 276.225034] nvgpu: 17000000.gv11b gv11b_fifo_recover:383 [DBG] REC | Re-enabling CG/PG [ 276.225134] nvgpu: 17000000.gv11b gv11b_fifo_recover:394 [DBG] REC | Releasing engines reset mutex Note the "REC |" which lets one easily do: $ dmesg | grep "REC |" To get a clear ubobstrructed view of the recovery progress in the dmesg log. JIRA NVGPU-5606 Change-Id: I183f2b5ac54edc60ee894a82111723e27aa5c46b Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2392991 Reviewed-by: automaticguardword <automaticguardword@nvidia.com> Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com> Reviewed-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-by: Tejal Kudav <tkudav@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> GVS: Gerrit_Virtual_Submit