| Channagoud Kadabi | 7e8d55a | 2016-08-23 14:04:44 -0700 | [diff] [blame] | 1 | CPU Subsystem Dump Driver |
| 2 | |
| 3 | The CPU Subsystem dump driver is used to dump various hardware entities |
| 4 | like the instruction and data tlbs or the unified tlbs etc. to an |
| 5 | allocated buffer. This allows the data to be analysed in case of corruption. |
| 6 | |
| 7 | Required Properties for the cpuss_dump node: |
| 8 | -compatible = "qcom,cpuss-dump"; |
| 9 | |
| 10 | All child nodes of cpuss_dump node are interpreted as the various hardware |
| 11 | entities which need to be dumped. |
| 12 | |
| 13 | Required properties of the dump nodes |
| 14 | |
| 15 | - qcom,dump-node: phandle to the acutal cpuss hardware entity present |
| 16 | in the cpu map |
| 17 | - qcom,dump-id: The ID within the data dump table where this entry needs to |
| 18 | be added. |
| 19 | |
| 20 | Example: |
| 21 | msm_cpuss_dump { |
| 22 | compatible = "qcom,cpuss-dump"; |
| 23 | qcom,itlb_dump100 { |
| 24 | qcom,dump-node = <&L1_itlb_100>; |
| 25 | qcom,dump-id = <34>; |
| 26 | }; |
| 27 | }; |