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1 /*
2  * \file       trc_pkt_types_etmv4.h
3  * \brief      OpenCSD : ETMv4 packet info
4  *
5  * \copyright  Copyright (c) 2015,2019 ARM Limited. All Rights Reserved.
6  */
7 
8 
9 /*
10  * Redistribution and use in source and binary forms, with or without modification,
11  * are permitted provided that the following conditions are met:
12  *
13  * 1. Redistributions of source code must retain the above copyright notice,
14  * this list of conditions and the following disclaimer.
15  *
16  * 2. Redistributions in binary form must reproduce the above copyright notice,
17  * this list of conditions and the following disclaimer in the documentation
18  * and/or other materials provided with the distribution.
19  *
20  * 3. Neither the name of the copyright holder nor the names of its contributors
21  * may be used to endorse or promote products derived from this software without
22  * specific prior written permission.
23  *
24  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' AND
25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
26  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
27  * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
28  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
29  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
30  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
31  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
32  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
33  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34  */
35 
36 #ifndef ARM_TRC_PKT_TYPES_ETMV4_H_INCLUDED
37 #define ARM_TRC_PKT_TYPES_ETMV4_H_INCLUDED
38 
39 #include "opencsd/trc_pkt_types.h"
40 
41 /** @addtogroup trc_pkts
42 @{*/
43 
44 /** @name ETMv4 Packet Types
45 @{*/
46 
47 /** I stream packets. */
48 typedef enum _ocsd_etmv4_i_pkt_type
49 {
50 /* state of decode markers */
51 		ETM4_PKT_I_NOTSYNC = 0x200,             /*!< no sync found yet.  */
52         ETM4_PKT_I_INCOMPLETE_EOT,              /*!< flushing incomplete/empty packet at end of trace.*/
53         ETM4_PKT_I_NO_ERR_TYPE,                 /*!< error type not set for packet. */
54 
55 /* markers for unknown/bad packets */
56 		ETM4_PKT_I_BAD_SEQUENCE = 0x300,        /*!< invalid sequence for packet type. */
57         ETM4_PKT_I_BAD_TRACEMODE,               /*!< invalid packet type for this trace mode. */
58 		ETM4_PKT_I_RESERVED,                    /*!< packet type reserved. */
59         ETM4_PKT_I_RESERVED_CFG,                /*!< packet type reserved for current configuration */
60 
61 /* I stream packet types. */
62     /* extension header. */
63         ETM4_PKT_I_EXTENSION =          0x00,   /*!< b00000000  */
64 
65    /* sync */
66         ETM4_PKT_I_TRACE_INFO =         0x01,   /*!< b00000001 */
67         // timestamp
68         ETM4_PKT_I_TIMESTAMP =          0x02,   /*!< b0000001x */
69         ETM4_PKT_I_TRACE_ON =           0x04,   /*!< b00000100 */
70         ETM4_PKT_I_FUNC_RET =           0x05,   /*!< b00000101 (V8M only) */
71     // Exceptions
72         ETM4_PKT_I_EXCEPT =             0x06,   /*!< b00000110 */
73         ETM4_PKT_I_EXCEPT_RTN =         0x07,   /*!< b00000111 */
74 
75         /* unused encodings             0x08-0xB     b00001000 to b00001011 */
76 
77     /* cycle count packets */
78         ETM4_PKT_I_CCNT_F2 =            0x0C,   /*!< b0000110x */
79         ETM4_PKT_I_CCNT_F1 =            0x0E,   /*!< b0000111x */
80         ETM4_PKT_I_CCNT_F3 =            0x10,   /*!< b0001xxxx */
81 
82     // data synchronisation markers
83         ETM4_PKT_I_NUM_DS_MKR =         0x20,   /*!< b00100xxx */
84         ETM4_PKT_I_UNNUM_DS_MKR =       0x28,   /*!< b00101000 to b00101100 0x2C */
85 
86     // speculation
87         ETM4_PKT_I_COMMIT =             0x2D,   /*!< b00101101 */
88         ETM4_PKT_I_CANCEL_F1 =          0x2E,   /*!< b00101110 */
89         ETM4_PKT_I_CANCEL_F1_MISPRED =  0x2F,   /*!< b00101111 */
90         ETM4_PKT_I_MISPREDICT =         0x30,   /*!< b001100xx */
91         ETM4_PKT_I_CANCEL_F2 =          0x34,   /*!< b001101xx */
92         ETM4_PKT_I_CANCEL_F3 =          0x38,   /*!< b00111xxx */
93 
94     /* conditional instruction tracing */
95         ETM4_PKT_I_COND_I_F2 =          0x40,   /*!< b01000000 - b01000010 */
96         ETM4_PKT_I_COND_FLUSH =         0x43,   /*!< b01000011 */
97         ETM4_PKT_I_COND_RES_F4 =        0x44,   /*!< b0100010x, b01000110 */
98         /* unused encoding              0x47         b01000111 */
99         ETM4_PKT_I_COND_RES_F2 =        0x48,   /*!< b0100100x, b01001010, b0100110x, b01001110 */
100         /* unused encodings             0x4B,0x4F    b01001011, b01001111 */
101         ETM4_PKT_I_COND_RES_F3 =        0x50,   /*!< b0101xxxx */
102         /* unused encodings             0x60-0x67    b01100xxx */
103         ETM4_PKT_I_COND_RES_F1 =        0x68,   /*!< b011010xx, b0110111x  0x68-0x6B, 0x6e-0x6F */
104         ETM4_PKT_I_COND_I_F1 =          0x6C,   /*!< b01101100 */
105         ETM4_PKT_I_COND_I_F3 =          0x6D,   /*!< b01101101 */
106 
107         // event trace
108         ETM4_PKT_I_IGNORE =             0x70,   /*!< b01110000 */
109         ETM4_PKT_I_EVENT =              0x71,   /*!< b01110001 to 0x01111111 0x7F */
110 
111     /* address and context */
112         ETM4_PKT_I_CTXT =               0x80,   /*!< b1000000x  */
113         ETM4_PKT_I_ADDR_CTXT_L_32IS0 =  0x82,   /*!< b10000010  */
114         ETM4_PKT_I_ADDR_CTXT_L_32IS1,           /*!< b10000011  */
115         /* unused encoding              0x84         b10000100  */
116         ETM4_PKT_I_ADDR_CTXT_L_64IS0 =  0x85,   /*!< b10000101  */
117         ETM4_PKT_I_ADDR_CTXT_L_64IS1,           /*!< b10000110  */
118         /* unused encoding              0x87         b10000111  */
119         /* unused encodings             0x88-0x8F    b10001xxx  */
120         ETM4_PKT_I_ADDR_MATCH =         0x90,   /*!< b10010000 to b10010010 0x92 */
121         /* unused encodings             0x93-0x94    b10010011 to b10010010 */
122         ETM4_PKT_I_ADDR_S_IS0 =         0x95,   /*!< b10010101  */
123         ETM4_PKT_I_ADDR_S_IS1,                  /*!< b10010110  */
124         /* unused encodings             0x97         b10010111 to b10011001 0x99 */
125         ETM4_PKT_I_ADDR_L_32IS0 =       0x9A,   /*!< b10011010  */
126         ETM4_PKT_I_ADDR_L_32IS1,                /*!< b10011011  */
127         /* unused encoding              0x9C         b10011100  */
128         ETM4_PKT_I_ADDR_L_64IS0 =       0x9D,   /*!< b10011101  */
129         ETM4_PKT_I_ADDR_L_64IS1,                /*!< b10011110  */
130         /* unused encoding              0x9F         b10011111  */
131 
132     /* Q packets */
133         ETM4_PKT_I_Q = 0xA0,                    /*!< b1010xxxx  */
134 
135         /* unused encodings             0xB0-0xBF    b1011xxxx  */
136 
137     /* Atom packets */
138         ETM4_PKT_I_ATOM_F6 =            0xC0,   /*!< b11000000 - b11010100 0xC0 - 0xD4, b11100000 - b11110100 0xE0 - 0xF4 */
139         ETM4_PKT_I_ATOM_F5 =            0xD5,   /*!< b11010101 - b11010111 0xD5 - 0xD7, b11110101 0xF5 */
140         ETM4_PKT_I_ATOM_F2 =            0xD8,   /*!< b110110xx to 0xDB */
141         ETM4_PKT_I_ATOM_F4 =            0xDC,   /*!< b110111xx to 0xDF */
142         ETM4_PKT_I_ATOM_F1 =            0xF6,   /*!< b1111011x to 0xF7 */
143         ETM4_PKT_I_ATOM_F3 =            0xF8,   /*!< b11111xxx to 0xFF */
144 
145     // extension packets - follow 0x00 header
146         ETM4_PKT_I_ASYNC = 0x100,              //!< b00000000
147         ETM4_PKT_I_DISCARD = 0x103,            //!< b00000011
148         ETM4_PKT_I_OVERFLOW = 0x105,           //!< b00000101
149 
150 } ocsd_etmv4_i_pkt_type;
151 
152 typedef union _etmv4_trace_info_t {
153     uint32_t val;   //!< trace info full value.
154     struct {
155         uint32_t cc_enabled:1;      //!< 1 if cycle count enabled
156         uint32_t cond_enabled:3;    //!< conditional trace enabeld type
157         uint32_t p0_load:1;         //!< 1 if tracing with P0 load elements (for data trace)
158         uint32_t p0_store:1;        //!< 1 if tracing with P0 store elements (for data trace)
159     } bits;         //!< bitfields for trace info value.
160 } etmv4_trace_info_t;
161 
162 typedef struct _etmv4_context_t {
163     struct {
164         uint32_t EL:2;          //!< exception level.
165         uint32_t SF:1;          //!< sixty four bit
166         uint32_t NS:1;          //!< none secure
167         uint32_t updated:1;     //!< updated this context packet (otherwise same as last time)
168         uint32_t updated_c:1;   //!< updated CtxtID
169         uint32_t updated_v:1;   //!< updated VMID
170     };
171     uint32_t ctxtID;   //!< Current ctxtID
172     uint32_t VMID;     //!< current VMID
173 } etmv4_context_t;
174 
175 /** a broadcast address value. */
176 typedef struct _etmv4_addr_val_t {
177     ocsd_vaddr_t val;  //!< Address value.
178     uint8_t isa;        //!< instruction set.
179 } etmv4_addr_val_t;
180 
181 typedef struct _ocsd_etmv4_i_pkt
182 {
183     ocsd_etmv4_i_pkt_type type;    /**< Trace packet type derived from header byte */
184 
185     //** intra-packet data - valid across packets.
186 
187     ocsd_pkt_vaddr v_addr;         //!< most recently broadcast address packet
188     uint8_t         v_addr_ISA;     //!< ISA for the address packet. (0 = IS0 / 1 = IS1)
189 
190     etmv4_context_t context;        //!< current context for PE
191 
192     struct {
193         uint64_t timestamp;         //!< current timestamp value
194         uint8_t bits_changed;       //!< bits updated in this timestamp packet.
195     } ts;
196 
197     uint32_t cc_threshold;      //!< cycle count threshold - from trace info.
198 
199     // single packet data - only valid for specific packet types on packet instance.
200     ocsd_pkt_atom  atom;       //!< atom elements - number of atoms indicates validity of packet
201     uint32_t cycle_count;       //!< cycle count
202 
203     uint32_t curr_spec_depth;   //!< current speculation depth
204     uint32_t p0_key;            //!< current P0 key value for data packet synchronisation
205 
206     uint32_t commit_elements;  //<! commit elements indicated by this packet - valid dependent on the packet type.
207     uint32_t cancel_elements;  //<! cancel elements indicated by this packet - valid dependent on the packet type.
208 
209     etmv4_trace_info_t trace_info;  //!< trace info structure - programmed configuration of trace capture.
210 
211     struct {
212         uint32_t exceptionType:10;      //!< exception number
213         uint32_t addr_interp:2;         //!< address value interpretation
214         uint32_t m_fault_pending:1;     //!< M class fault pending.
215         uint32_t m_type:1;              //!< 1 if M class exception.
216     } exception_info;
217 
218 
219     uint8_t addr_exact_match_idx;   //!< address match index in this packet.
220     uint8_t dsm_val;    //!<  Data Sync Marker number, or unnumbered atom count - packet type determines.
221     uint8_t event_val;  //!< Event value on event packet.
222 
223     struct {
224         uint32_t cond_c_key;
225         uint8_t num_c_elem;
226         struct {
227             uint32_t cond_key_set:1;
228             uint32_t f3_final_elem:1;
229             uint32_t f2_cond_incr:1;
230         };
231     } cond_instr;
232 
233     struct {
234         uint32_t cond_r_key_0;
235         uint32_t cond_r_key_1;
236         struct {
237             uint32_t res_0:4;
238             uint32_t res_1:4;
239             uint32_t ci_0:1;
240             uint32_t ci_1:1;
241             uint32_t key_res_0_set:1;
242             uint32_t key_res_1_set:1;
243             uint32_t f2_key_incr:2;
244             uint32_t f2f4_token:2;
245             uint32_t f3_tokens:12;
246         };
247     } cond_result;
248 
249     struct {
250         uint32_t q_count;
251         struct {
252             uint32_t addr_present:1;
253             uint32_t addr_match:1;
254             uint32_t count_present:1;
255             uint32_t q_type:4;
256         };
257     } Q_pkt;
258 
259     //! valid bits for packet elements (addresses have their own valid bits).
260     union {
261         uint32_t val;
262         struct {
263             uint32_t context_valid:1;
264             uint32_t ts_valid:1;
265             uint32_t spec_depth_valid:1;
266             uint32_t p0_key_valid:1;
267             uint32_t cond_c_key_valid:1;
268             uint32_t cond_r_key_valid:1;
269             uint32_t trace_info_valid:1;
270             uint32_t cc_thresh_valid:1;
271             uint32_t cc_valid:1;
272             uint32_t commit_elem_valid:1;
273         } bits;
274     } pkt_valid;
275 
276     // original header type when packet type changed to error on decode error.
277     ocsd_etmv4_i_pkt_type err_type;
278     uint8_t err_hdr_val;
279 
280 } ocsd_etmv4_i_pkt;
281 
282 
283 // D stream packets
284 typedef enum _ocsd_etmv4_d_pkt_type
285 {
286 // markers for unknown/bad packets
287 		ETM4_PKT_D_NOTSYNC = 0x200,        //!< no sync found yet
288 		ETM4_PKT_D_BAD_SEQUENCE,   //!< invalid sequence for packet type
289         ETM4_PKT_D_BAD_TRACEMODE,  //!< invalid packet type for this trace mode.
290 		ETM4_PKT_D_RESERVED,       //!< packet type reserved.
291         ETM4_PKT_D_INCOMPLETE_EOT, //!< flushing incomplete packet at end of trace.
292         ETM4_PKT_D_NO_HEADER,      //!< waiting for a header byte
293         ETM4_PKT_D_NO_ERR_TYPE,    //!< error packet has no header based type. Use with unknown/res packet types.
294 
295     // data sync markers
296         ETM4_PKT_DNUM_DS_MKR = 0x111, // ext packet, b0001xxx1
297     // extension header
298         ETM4_PKT_D_EXTENSION = 0x00,           //!< b00000000
299 
300         ETM4_PKT_DUNNUM_DS_MKR = 0x01,    //!< b00000001
301     // event trace
302         ETM4_PKT_DEVENT = 0x04,           //!< b00000100
303     // timestamp
304         ETM4_PKT_DTIMESTAMP = 0x02,       //!< b00000010
305     // P1 Data address
306         ETM4_PKT_DADDR_P1_F1 = 0x70,     //!< b0111xxxx
307         ETM4_PKT_DADDR_P1_F2 = 0x80,     //!< b10xxxxxx
308         ETM4_PKT_DADDR_P1_F3 = 0x14,     //!< b000101xx
309         ETM4_PKT_DADDR_P1_F4 = 0x60,     //!< b0110xxxx
310         ETM4_PKT_DADDR_P1_F5 = 0xF8,     //!< b11111xxx
311         ETM4_PKT_DADDR_P1_F6 = 0xF6,     //!< b1111011x
312         ETM4_PKT_DADDR_P1_F7 = 0xF5,     //!< b11110101
313     // P2 Data value
314         ETM4_PKT_DVAL_P2_F1 = 0x20,      //!< b0010xxxx
315         ETM4_PKT_DVAL_P2_F2 = 0x30,      //!< b00110xxx
316         ETM4_PKT_DVAL_P2_F3 = 0x40,      //!< b010xxxxx
317         ETM4_PKT_DVAL_P2_F4 = 0x10,      //!< b000100xx
318         ETM4_PKT_DVAL_P2_F5 = 0x18,      //!< b00011xxx
319         ETM4_PKT_DVAL_P2_F6 = 0x38,      //!< b00111xxx
320     // suppression
321         ETM4_PKT_DSUPPRESSION = 0x03,     //!< b00000011
322     // synchronisation- extension packets - follow 0x00 header
323         ETM4_PKT_DTRACE_INFO = 0x101,      //!< b00000001
324 
325     // extension packets - follow 0x00 header
326         ETM4_PKT_D_ASYNC = 0x100,              //!< b00000000
327         ETM4_PKT_D_DISCARD = 0x103,            //!< b00000011
328         ETM4_PKT_D_OVERFLOW = 0x105            //!< b00000101
329 
330 } ocsd_etmv4_d_pkt_type;
331 
332 
333 typedef struct _ocsd_etmv4_d_pkt
334 {
335     ocsd_etmv4_d_pkt_type type;
336 
337     ocsd_pkt_vaddr d_addr;
338 
339     uint64_t        pkt_val;    /**< Packet value -> data value, timestamp value, event value */
340 
341     ocsd_etmv4_d_pkt_type err_type;
342 
343 } ocsd_etmv4_d_pkt;
344 
345 typedef struct _ocsd_etmv4_cfg
346 {
347     uint32_t                reg_idr0;    /**< ID0 register */
348     uint32_t                reg_idr1;    /**< ID1 register */
349     uint32_t                reg_idr2;    /**< ID2 register */
350     uint32_t                reg_idr8;
351     uint32_t                reg_idr9;
352     uint32_t                reg_idr10;
353     uint32_t                reg_idr11;
354     uint32_t                reg_idr12;
355     uint32_t                reg_idr13;
356     uint32_t                reg_configr;  /**< Config Register */
357     uint32_t                reg_traceidr;  /**< Trace Stream ID register */
358     ocsd_arch_version_t    arch_ver;   /**< Architecture version */
359     ocsd_core_profile_t    core_prof;  /**< Core Profile */
360 } ocsd_etmv4_cfg;
361 
362 
363 /** @}*/
364 /** @}*/
365 #endif // ARM_TRC_PKT_TYPES_ETMV4_H_INCLUDED
366 
367 /* End of File trc_pkt_types_etmv4.h */
368 
369