| blob | e08e983dd2d9968bcec20ef4e806bfd9d4fd6f2e |
1 /* Copyright (c) 2014-2015, The Linux Foundation. All rights reserved.
2 *
3 * This program is free software; you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License version 2 and
5 * only version 2 as published by the Free Software Foundation.
6 *
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
11 */
13 #ifndef _CORESIGHT_CORESIGHT_ETM_H
14 #define _CORESIGHT_CORESIGHT_ETM_H
16 #include <linux/spinlock.h>
19 /*
20 * Device registers:
21 * 0x000 - 0x2FC: Trace registers
22 * 0x300 - 0x314: Management registers
23 * 0x318 - 0xEFC: Trace registers
24 * 0xF00: Management registers
25 * 0xFA0 - 0xFA4: Trace registers
26 * 0xFA8 - 0xFFC: Management registers
27 */
28 /* Trace registers (0x000-0x2FC) */
29 /* Main control and configuration registers */
30 #define TRCPRGCTLR 0x004
31 #define TRCPROCSELR 0x008
32 #define TRCSTATR 0x00C
33 #define TRCCONFIGR 0x010
34 #define TRCAUXCTLR 0x018
35 #define TRCEVENTCTL0R 0x020
36 #define TRCEVENTCTL1R 0x024
37 #define TRCSTALLCTLR 0x02C
38 #define TRCTSCTLR 0x030
39 #define TRCSYNCPR 0x034
40 #define TRCCCCTLR 0x038
41 #define TRCBBCTLR 0x03C
42 #define TRCTRACEIDR 0x040
43 #define TRCQCTLR 0x044
44 /* Filtering control registers */
45 #define TRCVICTLR 0x080
46 #define TRCVIIECTLR 0x084
47 #define TRCVISSCTLR 0x088
48 #define TRCVIPCSSCTLR 0x08C
49 #define TRCVDCTLR 0x0A0
50 #define TRCVDSACCTLR 0x0A4
51 #define TRCVDARCCTLR 0x0A8
52 /* Derived resources registers */
53 #define TRCSEQEVRn(n) (0x100 + (n * 4))
54 #define TRCSEQRSTEVR 0x118
55 #define TRCSEQSTR 0x11C
56 #define TRCEXTINSELR 0x120
57 #define TRCCNTRLDVRn(n) (0x140 + (n * 4))
58 #define TRCCNTCTLRn(n) (0x150 + (n * 4))
59 #define TRCCNTVRn(n) (0x160 + (n * 4))
60 /* ID registers */
61 #define TRCIDR8 0x180
62 #define TRCIDR9 0x184
63 #define TRCIDR10 0x188
64 #define TRCIDR11 0x18C
65 #define TRCIDR12 0x190
66 #define TRCIDR13 0x194
67 #define TRCIMSPEC0 0x1C0
68 #define TRCIMSPECn(n) (0x1C0 + (n * 4))
69 #define TRCIDR0 0x1E0
70 #define TRCIDR1 0x1E4
71 #define TRCIDR2 0x1E8
72 #define TRCIDR3 0x1EC
73 #define TRCIDR4 0x1F0
74 #define TRCIDR5 0x1F4
75 #define TRCIDR6 0x1F8
76 #define TRCIDR7 0x1FC
77 /* Resource selection registers */
78 #define TRCRSCTLRn(n) (0x200 + (n * 4))
79 /* Single-shot comparator registers */
80 #define TRCSSCCRn(n) (0x280 + (n * 4))
81 #define TRCSSCSRn(n) (0x2A0 + (n * 4))
82 #define TRCSSPCICRn(n) (0x2C0 + (n * 4))
83 /* Management registers (0x300-0x314) */
84 #define TRCOSLAR 0x300
85 #define TRCOSLSR 0x304
86 #define TRCPDCR 0x310
87 #define TRCPDSR 0x314
88 /* Trace registers (0x318-0xEFC) */
89 /* Comparator registers */
90 #define TRCACVRn(n) (0x400 + (n * 8))
91 #define TRCACATRn(n) (0x480 + (n * 8))
92 #define TRCDVCVRn(n) (0x500 + (n * 16))
93 #define TRCDVCMRn(n) (0x580 + (n * 16))
94 #define TRCCIDCVRn(n) (0x600 + (n * 8))
95 #define TRCVMIDCVRn(n) (0x640 + (n * 8))
96 #define TRCCIDCCTLR0 0x680
97 #define TRCCIDCCTLR1 0x684
98 #define TRCVMIDCCTLR0 0x688
99 #define TRCVMIDCCTLR1 0x68C
100 /* Management register (0xF00) */
101 /* Integration control registers */
102 #define TRCITCTRL 0xF00
103 /* Trace registers (0xFA0-0xFA4) */
104 /* Claim tag registers */
105 #define TRCCLAIMSET 0xFA0
106 #define TRCCLAIMCLR 0xFA4
107 /* Management registers (0xFA8-0xFFC) */
108 #define TRCDEVAFF0 0xFA8
109 #define TRCDEVAFF1 0xFAC
110 #define TRCLAR 0xFB0
111 #define TRCLSR 0xFB4
112 #define TRCAUTHSTATUS 0xFB8
113 #define TRCDEVARCH 0xFBC
114 #define TRCDEVID 0xFC8
115 #define TRCDEVTYPE 0xFCC
116 #define TRCPIDR4 0xFD0
117 #define TRCPIDR5 0xFD4
118 #define TRCPIDR6 0xFD8
119 #define TRCPIDR7 0xFDC
120 #define TRCPIDR0 0xFE0
121 #define TRCPIDR1 0xFE4
122 #define TRCPIDR2 0xFE8
123 #define TRCPIDR3 0xFEC
124 #define TRCCIDR0 0xFF0
125 #define TRCCIDR1 0xFF4
126 #define TRCCIDR2 0xFF8
127 #define TRCCIDR3 0xFFC
129 /* ETMv4 resources */
130 #define ETM_MAX_NR_PE 8
131 #define ETMv4_MAX_CNTR 4
132 #define ETM_MAX_SEQ_STATES 4
133 #define ETM_MAX_EXT_INP_SEL 4
134 #define ETM_MAX_EXT_INP 256
135 #define ETM_MAX_EXT_OUT 4
136 #define ETM_MAX_SINGLE_ADDR_CMP 16
137 #define ETM_MAX_ADDR_RANGE_CMP (ETM_MAX_SINGLE_ADDR_CMP / 2)
138 #define ETM_MAX_DATA_VAL_CMP 8
139 #define ETMv4_MAX_CTXID_CMP 8
140 #define ETM_MAX_VMID_CMP 8
141 #define ETM_MAX_PE_CMP 8
142 #define ETM_MAX_RES_SEL 16
143 #define ETM_MAX_SS_CMP 8
145 #define ETM_ARCH_V4 0x40
146 #define ETMv4_SYNC_MASK 0x1F
147 #define ETM_CYC_THRESHOLD_MASK 0xFFF
148 #define ETMv4_EVENT_MASK 0xFF
149 #define ETM_CNTR_MAX_VAL 0xFFFF
150 #define ETM_TRACEID_MASK 0x3f
152 /* ETMv4 programming modes */
153 #define ETM_MODE_EXCLUDE BIT(0)
154 #define ETM_MODE_LOAD BIT(1)
155 #define ETM_MODE_STORE BIT(2)
156 #define ETM_MODE_LOAD_STORE BIT(3)
157 #define ETM_MODE_BB BIT(4)
158 #define ETMv4_MODE_CYCACC BIT(5)
159 #define ETMv4_MODE_CTXID BIT(6)
160 #define ETM_MODE_VMID BIT(7)
161 #define ETM_MODE_COND(val) BMVAL(val, 8, 10)
162 #define ETMv4_MODE_TIMESTAMP BIT(11)
163 #define ETM_MODE_RETURNSTACK BIT(12)
164 #define ETM_MODE_QELEM(val) BMVAL(val, 13, 14)
165 #define ETM_MODE_DATA_TRACE_ADDR BIT(15)
166 #define ETM_MODE_DATA_TRACE_VAL BIT(16)
167 #define ETM_MODE_ISTALL BIT(17)
168 #define ETM_MODE_DSTALL BIT(18)
169 #define ETM_MODE_ATB_TRIGGER BIT(19)
170 #define ETM_MODE_LPOVERRIDE BIT(20)
171 #define ETM_MODE_ISTALL_EN BIT(21)
172 #define ETM_MODE_DSTALL_EN BIT(22)
173 #define ETM_MODE_INSTPRIO BIT(23)
174 #define ETM_MODE_NOOVERFLOW BIT(24)
175 #define ETM_MODE_TRACE_RESET BIT(25)
176 #define ETM_MODE_TRACE_ERR BIT(26)
177 #define ETM_MODE_VIEWINST_STARTSTOP BIT(27)
178 #define ETMv4_MODE_ALL 0xFFFFFFF
180 #define TRCSTATR_IDLE_BIT 0
182 /**
183 * struct etm4_drvdata - specifics associated to an ETM component
184 * @base: Memory mapped base address for this component.
185 * @dev: The device entity associated to this component.
186 * @csdev: Component vitals needed by the framework.
187 * @spinlock: Only one at a time pls.
188 * @cpu: The cpu this component is affined to.
189 * @arch: ETM version number.
190 * @enable: Is this ETM currently tracing.
191 * @sticky_enable: true if ETM base configuration has been done.
192 * @boot_enable:True if we should start tracing at boot time.
193 * @os_unlock: True if access to management registers is allowed.
194 * @nr_pe: The number of processing entity available for tracing.
195 * @nr_pe_cmp: The number of processing entity comparator inputs that are
196 * available for tracing.
197 * @nr_addr_cmp:Number of pairs of address comparators available
198 * as found in ETMIDR4 0-3.
199 * @nr_cntr: Number of counters as found in ETMIDR5 bit 28-30.
200 * @nr_ext_inp: Number of external input.
201 * @numcidc: Number of contextID comparators.
202 * @numvmidc: Number of VMID comparators.
203 * @nrseqstate: The number of sequencer states that are implemented.
204 * @nr_event: Indicates how many events the trace unit support.
205 * @nr_resource:The number of resource selection pairs available for tracing.
206 * @nr_ss_cmp: Number of single-shot comparator controls that are available.
207 * @mode: Controls various modes supported by this ETM.
208 * @trcid: value of the current ID for this component.
209 * @trcid_size: Indicates the trace ID width.
210 * @instrp0: Tracing of load and store instructions
211 * as P0 elements is supported.
212 * @trccond: If the trace unit supports conditional
213 * instruction tracing.
214 * @retstack: Indicates if the implementation supports a return stack.
215 * @trc_error: Whether a trace unit can trace a system
216 * error exception.
217 * @atbtrig: If the implementation can support ATB triggers
218 * @lpoverride: If the implementation can support low-power state over.
219 * @pe_sel: Controls which PE to trace.
220 * @cfg: Controls the tracing options.
221 * @eventctrl0: Controls the tracing of arbitrary events.
222 * @eventctrl1: Controls the behavior of the events that @event_ctrl0 selects.
223 * @stallctl: If functionality that prevents trace unit buffer overflows
224 * is available.
225 * @sysstall: Does the system support stall control of the PE?
226 * @nooverflow: Indicate if overflow prevention is supported.
227 * @stall_ctrl: Enables trace unit functionality that prevents trace
228 * unit buffer overflows.
229 * @ts_size: Global timestamp size field.
230 * @ts_ctrl: Controls the insertion of global timestamps in the
231 * trace streams.
232 * @syncpr: Indicates if an implementation has a fixed
233 * synchronization period.
234 * @syncfreq: Controls how often trace synchronization requests occur.
235 * @trccci: Indicates if the trace unit supports cycle counting
236 * for instruction.
237 * @ccsize: Indicates the size of the cycle counter in bits.
238 * @ccitmin: minimum value that can be programmed in
239 * the TRCCCCTLR register.
240 * @ccctlr: Sets the threshold value for cycle counting.
241 * @trcbb: Indicates if the trace unit supports branch broadcast tracing.
242 * @q_support: Q element support characteristics.
243 * @vinst_ctrl: Controls instruction trace filtering.
244 * @viiectlr: Set or read, the address range comparators.
245 * @vissctlr: Set, or read, the single address comparators that control the
246 * ViewInst start-stop logic.
247 * @vipcssctlr: Set, or read, which PE comparator inputs can control the
248 * ViewInst start-stop logic.
249 * @seq_idx: Sequencor index selector.
250 * @seq_ctrl: Control for the sequencer state transition control register.
251 * @seq_rst: Moves the sequencer to state 0 when a programmed event occurs.
252 * @seq_state: Set, or read the sequencer state.
253 * @cntr_idx: Counter index seletor.
254 * @cntrldvr: Sets or returns the reload count value for a counter.
255 * @cntr_ctrl: Controls the operation of a counter.
256 * @cntr_val: Sets or returns the value for a counter.
257 * @res_idx: Resource index selector.
258 * @res_ctrl: Controls the selection of the resources in the trace unit.
259 * @ss_ctrl: Controls the corresponding single-shot comparator resource.
260 * @ss_status: The status of the corresponding single-shot comparator.
261 * @ss_pe_cmp: Selects the PE comparator inputs for Single-shot control.
262 * @addr_idx: Address comparator index selector.
263 * @addr_val: Value for address comparator.
264 * @addr_acc: Address comparator access type.
265 * @addr_type: Current status of the comparator register.
266 * @ctxid_idx: Context ID index selector.
267 * @ctxid_size: Size of the context ID field to consider.
268 * @ctxid_val: Value of the context ID comparator.
269 * @ctxid_mask0:Context ID comparator mask for comparator 0-3.
270 * @ctxid_mask1:Context ID comparator mask for comparator 4-7.
271 * @vmid_idx: VM ID index selector.
272 * @vmid_size: Size of the VM ID comparator to consider.
273 * @vmid_val: Value of the VM ID comparator.
274 * @vmid_mask0: VM ID comparator mask for comparator 0-3.
275 * @vmid_mask1: VM ID comparator mask for comparator 4-7.
276 * @s_ex_level: In secure state, indicates whether instruction tracing is
277 * supported for the corresponding Exception level.
278 * @ns_ex_level:In non-secure state, indicates whether instruction tracing is
279 * supported for the corresponding Exception level.
280 * @ext_inp: External input selection.
281 */
286 spinlock_t spinlock;
288 u8 arch;
293 u8 nr_pe;
294 u8 nr_pe_cmp;
295 u8 nr_addr_cmp;
296 u8 nr_cntr;
297 u8 nr_ext_inp;
298 u8 numcidc;
299 u8 numvmidc;
300 u8 nrseqstate;
301 u8 nr_event;
302 u8 nr_resource;
303 u8 nr_ss_cmp;
304 u32 mode;
305 u8 trcid;
306 u8 trcid_size;
313 u32 pe_sel;
314 u32 cfg;
315 u32 eventctrl0;
316 u32 eventctrl1;
320 u32 stall_ctrl;
321 u8 ts_size;
322 u32 ts_ctrl;
324 u32 syncfreq;
326 u8 ccsize;
327 u8 ccitmin;
328 u32 ccctlr;
330 u32 bb_ctrl;
332 u32 vinst_ctrl;
333 u32 viiectlr;
334 u32 vissctlr;
335 u32 vipcssctlr;
336 u8 seq_idx;
338 u32 seq_rst;
339 u32 seq_state;
340 u8 cntr_idx;
344 u8 res_idx;
349 u8 addr_idx;
353 u8 ctxid_idx;
354 u8 ctxid_size;
356 u32 ctxid_mask0;
357 u32 ctxid_mask1;
358 u8 vmid_idx;
359 u8 vmid_size;
361 u32 vmid_mask0;
362 u32 vmid_mask1;
363 u8 s_ex_level;
364 u8 ns_ex_level;
365 u32 ext_inp;
366 };
368 /* Address comparator access types */
370 ETM_INSTR_ADDR,
371 ETM_DATA_LOAD_ADDR,
372 ETM_DATA_STORE_ADDR,
373 ETM_DATA_LOAD_STORE_ADDR,
374 };
376 /* Address comparator context types */
378 ETM_CTX_NONE,
379 ETM_CTX_CTXID,
380 ETM_CTX_VMID,
381 ETM_CTX_CTXID_VMID,
382 };
385 ETM_ADDR_TYPE_NONE,
386 ETM_ADDR_TYPE_SINGLE,
387 ETM_ADDR_TYPE_RANGE,
388 ETM_ADDR_TYPE_START,
389 ETM_ADDR_TYPE_STOP,
390 };
391 #endif