Mathieu Poirier | 7a25ec8 | 2014-11-10 14:06:42 -0700 | [diff] [blame] | 1 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/enable_source |
| 2 | Date: November 2014 |
| 3 | KernelVersion: 3.19 |
| 4 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 5 | Description: (RW) Enable/disable tracing on this specific trace entiry. |
| 6 | Enabling a source implies the source has been configured |
| 7 | properly and a sink has been identidifed for it. The path |
| 8 | of coresight components linking the source to the sink is |
| 9 | configured and managed automatically by the coresight framework. |
| 10 | |
| 11 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/status |
| 12 | Date: November 2014 |
| 13 | KernelVersion: 3.19 |
| 14 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 15 | Description: (R) List various control and status registers. The specific |
| 16 | layout and content is driver specific. |
| 17 | |
| 18 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/addr_idx |
| 19 | Date: November 2014 |
| 20 | KernelVersion: 3.19 |
| 21 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 22 | Description: Select which address comparator or pair (of comparators) to |
| 23 | work with. |
| 24 | |
| 25 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/addr_acctype |
| 26 | Date: November 2014 |
| 27 | KernelVersion: 3.19 |
| 28 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 29 | Description: (RW) Used in conjunction with @addr_idx. Specifies |
| 30 | characteristics about the address comparator being configure, |
| 31 | for example the access type, the kind of instruction to trace, |
| 32 | processor contect ID to trigger on, etc. Individual fields in |
| 33 | the access type register may vary on the version of the trace |
| 34 | entity. |
| 35 | |
| 36 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/addr_range |
| 37 | Date: November 2014 |
| 38 | KernelVersion: 3.19 |
| 39 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 40 | Description: (RW) Used in conjunction with @addr_idx. Specifies the range of |
| 41 | addresses to trigger on. Inclusion or exclusion is specificed |
| 42 | in the corresponding access type register. |
| 43 | |
| 44 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/addr_single |
| 45 | Date: November 2014 |
| 46 | KernelVersion: 3.19 |
| 47 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 48 | Description: (RW) Used in conjunction with @addr_idx. Specifies the single |
| 49 | address to trigger on, highly influenced by the configuration |
| 50 | options of the corresponding access type register. |
| 51 | |
| 52 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/addr_start |
| 53 | Date: November 2014 |
| 54 | KernelVersion: 3.19 |
| 55 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 56 | Description: (RW) Used in conjunction with @addr_idx. Specifies the single |
| 57 | address to start tracing on, highly influenced by the |
| 58 | configuration options of the corresponding access type register. |
| 59 | |
| 60 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/addr_stop |
| 61 | Date: November 2014 |
| 62 | KernelVersion: 3.19 |
| 63 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 64 | Description: (RW) Used in conjunction with @addr_idx. Specifies the single |
| 65 | address to stop tracing on, highly influenced by the |
| 66 | configuration options of the corresponding access type register. |
| 67 | |
| 68 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/cntr_idx |
| 69 | Date: November 2014 |
| 70 | KernelVersion: 3.19 |
| 71 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 72 | Description: (RW) Specifies the counter to work on. |
| 73 | |
| 74 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/cntr_event |
| 75 | Date: November 2014 |
| 76 | KernelVersion: 3.19 |
| 77 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 78 | Description: (RW) Used in conjunction with cntr_idx, give access to the |
| 79 | counter event register. |
| 80 | |
| 81 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/cntr_val |
| 82 | Date: November 2014 |
| 83 | KernelVersion: 3.19 |
| 84 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 85 | Description: (RW) Used in conjunction with cntr_idx, give access to the |
| 86 | counter value register. |
| 87 | |
| 88 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/cntr_rld_val |
| 89 | Date: November 2014 |
| 90 | KernelVersion: 3.19 |
| 91 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 92 | Description: (RW) Used in conjunction with cntr_idx, give access to the |
| 93 | counter reload value register. |
| 94 | |
| 95 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/cntr_rld_event |
| 96 | Date: November 2014 |
| 97 | KernelVersion: 3.19 |
| 98 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 99 | Description: (RW) Used in conjunction with cntr_idx, give access to the |
| 100 | counter reload event register. |
| 101 | |
| 102 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/ctxid_idx |
| 103 | Date: November 2014 |
| 104 | KernelVersion: 3.19 |
| 105 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 106 | Description: (RW) Specifies the index of the context ID register to be |
| 107 | selected. |
| 108 | |
| 109 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/ctxid_mask |
| 110 | Date: November 2014 |
| 111 | KernelVersion: 3.19 |
| 112 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 113 | Description: (RW) Mask to apply to all the context ID comparator. |
| 114 | |
Chunyan Zhang | 414a141 | 2015-07-31 09:37:24 -0600 | [diff] [blame] | 115 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/ctxid_pid |
Mathieu Poirier | 7a25ec8 | 2014-11-10 14:06:42 -0700 | [diff] [blame] | 116 | Date: November 2014 |
| 117 | KernelVersion: 3.19 |
| 118 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 119 | Description: (RW) Used with the ctxid_idx, specify with context ID to trigger |
| 120 | on. |
| 121 | |
| 122 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/enable_event |
| 123 | Date: November 2014 |
| 124 | KernelVersion: 3.19 |
| 125 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 126 | Description: (RW) Defines which event triggers a trace. |
| 127 | |
| 128 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/etmsr |
| 129 | Date: November 2014 |
| 130 | KernelVersion: 3.19 |
| 131 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 132 | Description: (RW) Gives access to the ETM status register, which holds |
| 133 | programming information and status on certains events. |
| 134 | |
| 135 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/fifofull_level |
| 136 | Date: November 2014 |
| 137 | KernelVersion: 3.19 |
| 138 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 139 | Description: (RW) Number of byte left in the fifo before considering it full. |
| 140 | Depending on the tracer's version, can also hold threshold for |
| 141 | data suppression. |
| 142 | |
| 143 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/mode |
| 144 | Date: November 2014 |
| 145 | KernelVersion: 3.19 |
| 146 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 147 | Description: (RW) Interface with the driver's 'mode' field, controlling |
| 148 | various aspect of the trace entity such as time stamping, |
| 149 | context ID size and cycle accurate tracing. Driver specific |
| 150 | and bound to change depending on the driver. |
| 151 | |
| 152 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/nr_addr_cmp |
| 153 | Date: November 2014 |
| 154 | KernelVersion: 3.19 |
| 155 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 156 | Description: (R) Provides the number of address comparators pairs accessible |
| 157 | on a trace unit, as specified by bit 3:0 of register ETMCCR. |
| 158 | |
| 159 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/nr_cntr |
| 160 | Date: November 2014 |
| 161 | KernelVersion: 3.19 |
| 162 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 163 | Description: (R) Provides the number of counters accessible on a trace unit, |
| 164 | as specified by bit 15:13 of register ETMCCR. |
| 165 | |
| 166 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/nr_ctxid_cmp |
| 167 | Date: November 2014 |
| 168 | KernelVersion: 3.19 |
| 169 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 170 | Description: (R) Provides the number of context ID comparator available on a |
| 171 | trace unit, as specified by bit 25:24 of register ETMCCR. |
| 172 | |
| 173 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/reset |
| 174 | Date: November 2014 |
| 175 | KernelVersion: 3.19 |
| 176 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 177 | Description: (W) Cancels all configuration on a trace unit and set it back |
| 178 | to its boot configuration. |
| 179 | |
| 180 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/seq_12_event |
| 181 | Date: November 2014 |
| 182 | KernelVersion: 3.19 |
| 183 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 184 | Description: (RW) Defines the event that causes the sequencer to transition |
| 185 | from state 1 to state 2. |
| 186 | |
| 187 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/seq_13_event |
| 188 | Date: November 2014 |
| 189 | KernelVersion: 3.19 |
| 190 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 191 | Description: (RW) Defines the event that causes the sequencer to transition |
| 192 | from state 1 to state 3. |
| 193 | |
| 194 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/seq_21_event |
| 195 | Date: November 2014 |
| 196 | KernelVersion: 3.19 |
| 197 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 198 | Description: (RW) Defines the event that causes the sequencer to transition |
| 199 | from state 2 to state 1. |
| 200 | |
| 201 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/seq_23_event |
| 202 | Date: November 2014 |
| 203 | KernelVersion: 3.19 |
| 204 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 205 | Description: (RW) Defines the event that causes the sequencer to transition |
| 206 | from state 2 to state 3. |
| 207 | |
| 208 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/seq_31_event |
| 209 | Date: November 2014 |
| 210 | KernelVersion: 3.19 |
| 211 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 212 | Description: (RW) Defines the event that causes the sequencer to transition |
| 213 | from state 3 to state 1. |
| 214 | |
| 215 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/seq_32_event |
| 216 | Date: November 2014 |
| 217 | KernelVersion: 3.19 |
| 218 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 219 | Description: (RW) Defines the event that causes the sequencer to transition |
| 220 | from state 3 to state 2. |
| 221 | |
| 222 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/curr_seq_state |
| 223 | Date: November 2014 |
| 224 | KernelVersion: 3.19 |
| 225 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 226 | Description: (R) Holds the current state of the sequencer. |
| 227 | |
| 228 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/sync_freq |
| 229 | Date: November 2014 |
| 230 | KernelVersion: 3.19 |
| 231 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 232 | Description: (RW) Holds the trace synchronization frequency value - must be |
| 233 | programmed with the various implementation behavior in mind. |
| 234 | |
| 235 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/timestamp_event |
| 236 | Date: November 2014 |
| 237 | KernelVersion: 3.19 |
| 238 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 239 | Description: (RW) Defines an event that requests the insertion of a timestamp |
| 240 | into the trace stream. |
| 241 | |
| 242 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/traceid |
| 243 | Date: November 2014 |
| 244 | KernelVersion: 3.19 |
| 245 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 246 | Description: (RW) Holds the trace ID that will appear in the trace stream |
| 247 | coming from this trace entity. |
| 248 | |
| 249 | What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/trigger_event |
| 250 | Date: November 2014 |
| 251 | KernelVersion: 3.19 |
| 252 | Contact: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 253 | Description: (RW) Define the event that controls the trigger. |