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6236451d TB |
1 | /* |
2 | * Copyright (C) 2010 Google, Inc. | |
3 | * Author: Erik Gilling <konkers@android.com> | |
4 | * | |
5 | * Copyright (C) 2011-2013 NVIDIA Corporation | |
6 | * | |
7 | * This software is licensed under the terms of the GNU General Public | |
8 | * License version 2, as published by the Free Software Foundation, and | |
9 | * may be copied, distributed, and modified under those terms. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | */ | |
17 | ||
18 | #include <linux/debugfs.h> | |
19 | #include <linux/seq_file.h> | |
20 | #include <linux/mm.h> | |
21 | #include <linux/scatterlist.h> | |
22 | ||
23 | #include <linux/io.h> | |
24 | ||
25 | #include "dev.h" | |
26 | #include "debug.h" | |
27 | #include "cdma.h" | |
28 | #include "channel.h" | |
29 | #include "host1x_bo.h" | |
30 | ||
31 | #define HOST1X_DEBUG_MAX_PAGE_OFFSET 102400 | |
32 | ||
33 | enum { | |
34 | HOST1X_OPCODE_SETCLASS = 0x00, | |
35 | HOST1X_OPCODE_INCR = 0x01, | |
36 | HOST1X_OPCODE_NONINCR = 0x02, | |
37 | HOST1X_OPCODE_MASK = 0x03, | |
38 | HOST1X_OPCODE_IMM = 0x04, | |
39 | HOST1X_OPCODE_RESTART = 0x05, | |
40 | HOST1X_OPCODE_GATHER = 0x06, | |
41 | HOST1X_OPCODE_EXTEND = 0x0e, | |
42 | }; | |
43 | ||
44 | enum { | |
45 | HOST1X_OPCODE_EXTEND_ACQUIRE_MLOCK = 0x00, | |
46 | HOST1X_OPCODE_EXTEND_RELEASE_MLOCK = 0x01, | |
47 | }; | |
48 | ||
49 | static unsigned int show_channel_command(struct output *o, u32 val) | |
50 | { | |
51 | unsigned mask; | |
52 | unsigned subop; | |
53 | ||
54 | switch (val >> 28) { | |
55 | case HOST1X_OPCODE_SETCLASS: | |
56 | mask = val & 0x3f; | |
57 | if (mask) { | |
58 | host1x_debug_output(o, "SETCL(class=%03x, offset=%03x, mask=%02x, [", | |
59 | val >> 6 & 0x3ff, | |
60 | val >> 16 & 0xfff, mask); | |
61 | return hweight8(mask); | |
62 | } else { | |
63 | host1x_debug_output(o, "SETCL(class=%03x)\n", | |
64 | val >> 6 & 0x3ff); | |
65 | return 0; | |
66 | } | |
67 | ||
68 | case HOST1X_OPCODE_INCR: | |
69 | host1x_debug_output(o, "INCR(offset=%03x, [", | |
70 | val >> 16 & 0xfff); | |
71 | return val & 0xffff; | |
72 | ||
73 | case HOST1X_OPCODE_NONINCR: | |
74 | host1x_debug_output(o, "NONINCR(offset=%03x, [", | |
75 | val >> 16 & 0xfff); | |
76 | return val & 0xffff; | |
77 | ||
78 | case HOST1X_OPCODE_MASK: | |
79 | mask = val & 0xffff; | |
80 | host1x_debug_output(o, "MASK(offset=%03x, mask=%03x, [", | |
81 | val >> 16 & 0xfff, mask); | |
82 | return hweight16(mask); | |
83 | ||
84 | case HOST1X_OPCODE_IMM: | |
85 | host1x_debug_output(o, "IMM(offset=%03x, data=%03x)\n", | |
86 | val >> 16 & 0xfff, val & 0xffff); | |
87 | return 0; | |
88 | ||
89 | case HOST1X_OPCODE_RESTART: | |
90 | host1x_debug_output(o, "RESTART(offset=%08x)\n", val << 4); | |
91 | return 0; | |
92 | ||
93 | case HOST1X_OPCODE_GATHER: | |
94 | host1x_debug_output(o, "GATHER(offset=%03x, insert=%d, type=%d, count=%04x, addr=[", | |
95 | val >> 16 & 0xfff, val >> 15 & 0x1, | |
96 | val >> 14 & 0x1, val & 0x3fff); | |
97 | return 1; | |
98 | ||
99 | case HOST1X_OPCODE_EXTEND: | |
100 | subop = val >> 24 & 0xf; | |
101 | if (subop == HOST1X_OPCODE_EXTEND_ACQUIRE_MLOCK) | |
102 | host1x_debug_output(o, "ACQUIRE_MLOCK(index=%d)\n", | |
103 | val & 0xff); | |
104 | else if (subop == HOST1X_OPCODE_EXTEND_RELEASE_MLOCK) | |
105 | host1x_debug_output(o, "RELEASE_MLOCK(index=%d)\n", | |
106 | val & 0xff); | |
107 | else | |
108 | host1x_debug_output(o, "EXTEND_UNKNOWN(%08x)\n", val); | |
109 | return 0; | |
110 | ||
111 | default: | |
112 | return 0; | |
113 | } | |
114 | } | |
115 | ||
116 | static void show_gather(struct output *o, phys_addr_t phys_addr, | |
117 | unsigned int words, struct host1x_cdma *cdma, | |
118 | phys_addr_t pin_addr, u32 *map_addr) | |
119 | { | |
120 | /* Map dmaget cursor to corresponding mem handle */ | |
121 | u32 offset = phys_addr - pin_addr; | |
122 | unsigned int data_count = 0, i; | |
123 | ||
124 | /* | |
125 | * Sometimes we're given different hardware address to the same | |
126 | * page - in these cases the offset will get an invalid number and | |
127 | * we just have to bail out. | |
128 | */ | |
129 | if (offset > HOST1X_DEBUG_MAX_PAGE_OFFSET) { | |
130 | host1x_debug_output(o, "[address mismatch]\n"); | |
131 | return; | |
132 | } | |
133 | ||
134 | for (i = 0; i < words; i++) { | |
135 | u32 addr = phys_addr + i * 4; | |
136 | u32 val = *(map_addr + offset / 4 + i); | |
137 | ||
138 | if (!data_count) { | |
139 | host1x_debug_output(o, "%08x: %08x:", addr, val); | |
140 | data_count = show_channel_command(o, val); | |
141 | } else { | |
142 | host1x_debug_output(o, "%08x%s", val, | |
143 | data_count > 0 ? ", " : "])\n"); | |
144 | data_count--; | |
145 | } | |
146 | } | |
147 | } | |
148 | ||
149 | static void show_channel_gathers(struct output *o, struct host1x_cdma *cdma) | |
150 | { | |
151 | struct host1x_job *job; | |
152 | ||
153 | list_for_each_entry(job, &cdma->sync_queue, list) { | |
154 | int i; | |
155 | host1x_debug_output(o, "\n%p: JOB, syncpt_id=%d, syncpt_val=%d, first_get=%08x, timeout=%d num_slots=%d, num_handles=%d\n", | |
156 | job, job->syncpt_id, job->syncpt_end, | |
157 | job->first_get, job->timeout, | |
158 | job->num_slots, job->num_unpins); | |
159 | ||
160 | for (i = 0; i < job->num_gathers; i++) { | |
161 | struct host1x_job_gather *g = &job->gathers[i]; | |
162 | u32 *mapped; | |
163 | ||
164 | if (job->gather_copy_mapped) | |
165 | mapped = (u32 *)job->gather_copy_mapped; | |
166 | else | |
167 | mapped = host1x_bo_mmap(g->bo); | |
168 | ||
169 | if (!mapped) { | |
170 | host1x_debug_output(o, "[could not mmap]\n"); | |
171 | continue; | |
172 | } | |
173 | ||
174 | host1x_debug_output(o, " GATHER at %08x+%04x, %d words\n", | |
175 | g->base, g->offset, g->words); | |
176 | ||
177 | show_gather(o, g->base + g->offset, g->words, cdma, | |
178 | g->base, mapped); | |
179 | ||
180 | if (!job->gather_copy_mapped) | |
181 | host1x_bo_munmap(g->bo, mapped); | |
182 | } | |
183 | } | |
184 | } | |
185 | ||
186 | static void host1x_debug_show_channel_cdma(struct host1x *host, | |
187 | struct host1x_channel *ch, | |
188 | struct output *o) | |
189 | { | |
190 | struct host1x_cdma *cdma = &ch->cdma; | |
191 | u32 dmaput, dmaget, dmactrl; | |
192 | u32 cbstat, cbread; | |
193 | u32 val, base, baseval; | |
194 | ||
195 | dmaput = host1x_ch_readl(ch, HOST1X_CHANNEL_DMAPUT); | |
196 | dmaget = host1x_ch_readl(ch, HOST1X_CHANNEL_DMAGET); | |
197 | dmactrl = host1x_ch_readl(ch, HOST1X_CHANNEL_DMACTRL); | |
198 | cbread = host1x_sync_readl(host, HOST1X_SYNC_CBREAD(ch->id)); | |
199 | cbstat = host1x_sync_readl(host, HOST1X_SYNC_CBSTAT(ch->id)); | |
200 | ||
201 | host1x_debug_output(o, "%d-%s: ", ch->id, dev_name(ch->dev)); | |
202 | ||
203 | if (HOST1X_CHANNEL_DMACTRL_DMASTOP_V(dmactrl) || | |
204 | !ch->cdma.push_buffer.mapped) { | |
205 | host1x_debug_output(o, "inactive\n\n"); | |
206 | return; | |
207 | } | |
208 | ||
209 | if (HOST1X_SYNC_CBSTAT_CBCLASS_V(cbstat) == HOST1X_CLASS_HOST1X && | |
210 | HOST1X_SYNC_CBSTAT_CBOFFSET_V(cbstat) == | |
211 | HOST1X_UCLASS_WAIT_SYNCPT) | |
212 | host1x_debug_output(o, "waiting on syncpt %d val %d\n", | |
213 | cbread >> 24, cbread & 0xffffff); | |
214 | else if (HOST1X_SYNC_CBSTAT_CBCLASS_V(cbstat) == | |
215 | HOST1X_CLASS_HOST1X && | |
216 | HOST1X_SYNC_CBSTAT_CBOFFSET_V(cbstat) == | |
217 | HOST1X_UCLASS_WAIT_SYNCPT_BASE) { | |
218 | ||
219 | base = (cbread >> 16) & 0xff; | |
220 | baseval = | |
221 | host1x_sync_readl(host, HOST1X_SYNC_SYNCPT_BASE(base)); | |
222 | val = cbread & 0xffff; | |
223 | host1x_debug_output(o, "waiting on syncpt %d val %d (base %d = %d; offset = %d)\n", | |
224 | cbread >> 24, baseval + val, base, | |
225 | baseval, val); | |
226 | } else | |
227 | host1x_debug_output(o, "active class %02x, offset %04x, val %08x\n", | |
228 | HOST1X_SYNC_CBSTAT_CBCLASS_V(cbstat), | |
229 | HOST1X_SYNC_CBSTAT_CBOFFSET_V(cbstat), | |
230 | cbread); | |
231 | ||
232 | host1x_debug_output(o, "DMAPUT %08x, DMAGET %08x, DMACTL %08x\n", | |
233 | dmaput, dmaget, dmactrl); | |
234 | host1x_debug_output(o, "CBREAD %08x, CBSTAT %08x\n", cbread, cbstat); | |
235 | ||
236 | show_channel_gathers(o, cdma); | |
237 | host1x_debug_output(o, "\n"); | |
238 | } | |
239 | ||
240 | static void host1x_debug_show_channel_fifo(struct host1x *host, | |
241 | struct host1x_channel *ch, | |
242 | struct output *o) | |
243 | { | |
244 | u32 val, rd_ptr, wr_ptr, start, end; | |
245 | unsigned int data_count = 0; | |
246 | ||
247 | host1x_debug_output(o, "%d: fifo:\n", ch->id); | |
248 | ||
249 | val = host1x_ch_readl(ch, HOST1X_CHANNEL_FIFOSTAT); | |
250 | host1x_debug_output(o, "FIFOSTAT %08x\n", val); | |
251 | if (HOST1X_CHANNEL_FIFOSTAT_CFEMPTY_V(val)) { | |
252 | host1x_debug_output(o, "[empty]\n"); | |
253 | return; | |
254 | } | |
255 | ||
256 | host1x_sync_writel(host, 0x0, HOST1X_SYNC_CFPEEK_CTRL); | |
257 | host1x_sync_writel(host, HOST1X_SYNC_CFPEEK_CTRL_ENA_F(1) | | |
258 | HOST1X_SYNC_CFPEEK_CTRL_CHANNR_F(ch->id), | |
259 | HOST1X_SYNC_CFPEEK_CTRL); | |
260 | ||
261 | val = host1x_sync_readl(host, HOST1X_SYNC_CFPEEK_PTRS); | |
262 | rd_ptr = HOST1X_SYNC_CFPEEK_PTRS_CF_RD_PTR_V(val); | |
263 | wr_ptr = HOST1X_SYNC_CFPEEK_PTRS_CF_WR_PTR_V(val); | |
264 | ||
265 | val = host1x_sync_readl(host, HOST1X_SYNC_CF_SETUP(ch->id)); | |
266 | start = HOST1X_SYNC_CF_SETUP_BASE_V(val); | |
267 | end = HOST1X_SYNC_CF_SETUP_LIMIT_V(val); | |
268 | ||
269 | do { | |
270 | host1x_sync_writel(host, 0x0, HOST1X_SYNC_CFPEEK_CTRL); | |
271 | host1x_sync_writel(host, HOST1X_SYNC_CFPEEK_CTRL_ENA_F(1) | | |
272 | HOST1X_SYNC_CFPEEK_CTRL_CHANNR_F(ch->id) | | |
273 | HOST1X_SYNC_CFPEEK_CTRL_ADDR_F(rd_ptr), | |
274 | HOST1X_SYNC_CFPEEK_CTRL); | |
275 | val = host1x_sync_readl(host, HOST1X_SYNC_CFPEEK_READ); | |
276 | ||
277 | if (!data_count) { | |
278 | host1x_debug_output(o, "%08x:", val); | |
279 | data_count = show_channel_command(o, val); | |
280 | } else { | |
281 | host1x_debug_output(o, "%08x%s", val, | |
282 | data_count > 0 ? ", " : "])\n"); | |
283 | data_count--; | |
284 | } | |
285 | ||
286 | if (rd_ptr == end) | |
287 | rd_ptr = start; | |
288 | else | |
289 | rd_ptr++; | |
290 | } while (rd_ptr != wr_ptr); | |
291 | ||
292 | if (data_count) | |
293 | host1x_debug_output(o, ", ...])\n"); | |
294 | host1x_debug_output(o, "\n"); | |
295 | ||
296 | host1x_sync_writel(host, 0x0, HOST1X_SYNC_CFPEEK_CTRL); | |
297 | } | |
298 | ||
299 | static void host1x_debug_show_mlocks(struct host1x *host, struct output *o) | |
300 | { | |
301 | int i; | |
302 | ||
303 | host1x_debug_output(o, "---- mlocks ----\n"); | |
304 | for (i = 0; i < host1x_syncpt_nb_mlocks(host); i++) { | |
305 | u32 owner = | |
306 | host1x_sync_readl(host, HOST1X_SYNC_MLOCK_OWNER(i)); | |
307 | if (HOST1X_SYNC_MLOCK_OWNER_CH_OWNS_V(owner)) | |
308 | host1x_debug_output(o, "%d: locked by channel %d\n", | |
309 | i, HOST1X_SYNC_MLOCK_OWNER_CHID_F(owner)); | |
310 | else if (HOST1X_SYNC_MLOCK_OWNER_CPU_OWNS_V(owner)) | |
311 | host1x_debug_output(o, "%d: locked by cpu\n", i); | |
312 | else | |
313 | host1x_debug_output(o, "%d: unlocked\n", i); | |
314 | } | |
315 | host1x_debug_output(o, "\n"); | |
316 | } | |
317 | ||
318 | static const struct host1x_debug_ops host1x_debug_ops = { | |
319 | .show_channel_cdma = host1x_debug_show_channel_cdma, | |
320 | .show_channel_fifo = host1x_debug_show_channel_fifo, | |
321 | .show_mlocks = host1x_debug_show_mlocks, | |
322 | }; |