1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (C) 2010 Google, Inc.
4 * Author: Erik Gilling <konkers@android.com>
5 *
6 * Copyright (C) 2011-2013 NVIDIA Corporation
7 */
8
9#include "../dev.h"
10#include "../debug.h"
11#include "../cdma.h"
12#include "../channel.h"
13
14#define HOST1X_DEBUG_MAX_PAGE_OFFSET 102400
15
16enum {
17	HOST1X_OPCODE_SETCLASS	= 0x00,
18	HOST1X_OPCODE_INCR	= 0x01,
19	HOST1X_OPCODE_NONINCR	= 0x02,
20	HOST1X_OPCODE_MASK	= 0x03,
21	HOST1X_OPCODE_IMM	= 0x04,
22	HOST1X_OPCODE_RESTART	= 0x05,
23	HOST1X_OPCODE_GATHER	= 0x06,
24	HOST1X_OPCODE_SETSTRMID = 0x07,
25	HOST1X_OPCODE_SETAPPID  = 0x08,
26	HOST1X_OPCODE_SETPYLD   = 0x09,
27	HOST1X_OPCODE_INCR_W    = 0x0a,
28	HOST1X_OPCODE_NONINCR_W = 0x0b,
29	HOST1X_OPCODE_GATHER_W  = 0x0c,
30	HOST1X_OPCODE_RESTART_W = 0x0d,
31	HOST1X_OPCODE_EXTEND	= 0x0e,
32};
33
34enum {
35	HOST1X_OPCODE_EXTEND_ACQUIRE_MLOCK	= 0x00,
36	HOST1X_OPCODE_EXTEND_RELEASE_MLOCK	= 0x01,
37};
38
39#define INVALID_PAYLOAD				0xffffffff
40
41static unsigned int show_channel_command(struct output *o, u32 val,
42					 u32 *payload)
43{
44	unsigned int mask, subop, num, opcode;
45
46	opcode = val >> 28;
47
48	switch (opcode) {
49	case HOST1X_OPCODE_SETCLASS:
50		mask = val & 0x3f;
51		if (mask) {
52			host1x_debug_cont(o, "SETCL(class=%03x, offset=%03x, mask=%02x, [",
53					    val >> 6 & 0x3ff,
54					    val >> 16 & 0xfff, mask);
55			return hweight8(mask);
56		}
57
58		host1x_debug_cont(o, "SETCL(class=%03x)\n", val >> 6 & 0x3ff);
59		return 0;
60
61	case HOST1X_OPCODE_INCR:
62		num = val & 0xffff;
63		host1x_debug_cont(o, "INCR(offset=%03x, [",
64				    val >> 16 & 0xfff);
65		if (!num)
66			host1x_debug_cont(o, "])\n");
67
68		return num;
69
70	case HOST1X_OPCODE_NONINCR:
71		num = val & 0xffff;
72		host1x_debug_cont(o, "NONINCR(offset=%03x, [",
73				    val >> 16 & 0xfff);
74		if (!num)
75			host1x_debug_cont(o, "])\n");
76
77		return num;
78
79	case HOST1X_OPCODE_MASK:
80		mask = val & 0xffff;
81		host1x_debug_cont(o, "MASK(offset=%03x, mask=%03x, [",
82				    val >> 16 & 0xfff, mask);
83		if (!mask)
84			host1x_debug_cont(o, "])\n");
85
86		return hweight16(mask);
87
88	case HOST1X_OPCODE_IMM:
89		host1x_debug_cont(o, "IMM(offset=%03x, data=%03x)\n",
90				    val >> 16 & 0xfff, val & 0xffff);
91		return 0;
92
93	case HOST1X_OPCODE_RESTART:
94		host1x_debug_cont(o, "RESTART(offset=%08x)\n", val << 4);
95		return 0;
96
97	case HOST1X_OPCODE_GATHER:
98		host1x_debug_cont(o, "GATHER(offset=%03x, insert=%d, type=%d, count=%04x, addr=[",
99				    val >> 16 & 0xfff, val >> 15 & 0x1,
100				    val >> 14 & 0x1, val & 0x3fff);
101		return 1;
102
103#if HOST1X_HW >= 6
104	case HOST1X_OPCODE_SETSTRMID:
105		host1x_debug_cont(o, "SETSTRMID(offset=%06x)\n",
106				  val & 0x3fffff);
107		return 0;
108
109	case HOST1X_OPCODE_SETAPPID:
110		host1x_debug_cont(o, "SETAPPID(appid=%02x)\n", val & 0xff);
111		return 0;
112
113	case HOST1X_OPCODE_SETPYLD:
114		*payload = val & 0xffff;
115		host1x_debug_cont(o, "SETPYLD(data=%04x)\n", *payload);
116		return 0;
117
118	case HOST1X_OPCODE_INCR_W:
119	case HOST1X_OPCODE_NONINCR_W:
120		host1x_debug_cont(o, "%s(offset=%06x, ",
121				  opcode == HOST1X_OPCODE_INCR_W ?
122					"INCR_W" : "NONINCR_W",
123				  val & 0x3fffff);
124		if (*payload == 0) {
125			host1x_debug_cont(o, "[])\n");
126			return 0;
127		} else if (*payload == INVALID_PAYLOAD) {
128			host1x_debug_cont(o, "unknown)\n");
129			return 0;
130		} else {
131			host1x_debug_cont(o, "[");
132			return *payload;
133		}
134
135	case HOST1X_OPCODE_GATHER_W:
136		host1x_debug_cont(o, "GATHER_W(count=%04x, addr=[",
137				  val & 0x3fff);
138		return 2;
139#endif
140
141	case HOST1X_OPCODE_EXTEND:
142		subop = val >> 24 & 0xf;
143		if (subop == HOST1X_OPCODE_EXTEND_ACQUIRE_MLOCK)
144			host1x_debug_cont(o, "ACQUIRE_MLOCK(index=%d)\n",
145					    val & 0xff);
146		else if (subop == HOST1X_OPCODE_EXTEND_RELEASE_MLOCK)
147			host1x_debug_cont(o, "RELEASE_MLOCK(index=%d)\n",
148					    val & 0xff);
149		else
150			host1x_debug_cont(o, "EXTEND_UNKNOWN(%08x)\n", val);
151		return 0;
152
153	default:
154		host1x_debug_cont(o, "UNKNOWN\n");
155		return 0;
156	}
157}
158
159static void show_gather(struct output *o, dma_addr_t phys_addr,
160			unsigned int words, struct host1x_cdma *cdma,
161			dma_addr_t pin_addr, u32 *map_addr)
162{
163	/* Map dmaget cursor to corresponding mem handle */
164	u32 offset = phys_addr - pin_addr;
165	unsigned int data_count = 0, i;
166	u32 payload = INVALID_PAYLOAD;
167
168	/*
169	 * Sometimes we're given different hardware address to the same
170	 * page - in these cases the offset will get an invalid number and
171	 * we just have to bail out.
172	 */
173	if (offset > HOST1X_DEBUG_MAX_PAGE_OFFSET) {
174		host1x_debug_output(o, "[address mismatch]\n");
175		return;
176	}
177
178	for (i = 0; i < words; i++) {
179		dma_addr_t addr = phys_addr + i * 4;
180		u32 val = *(map_addr + offset / 4 + i);
181
182		if (!data_count) {
183			host1x_debug_output(o, "    %pad: %08x: ", &addr, val);
184			data_count = show_channel_command(o, val, &payload);
185		} else {
186			host1x_debug_cont(o, "%08x%s", val,
187					    data_count > 1 ? ", " : "])\n");
188			data_count--;
189		}
190	}
191}
192
193static void show_channel_gathers(struct output *o, struct host1x_cdma *cdma)
194{
195	struct push_buffer *pb = &cdma->push_buffer;
196	struct host1x_job *job;
197
198	list_for_each_entry(job, &cdma->sync_queue, list) {
199		unsigned int i;
200
201		host1x_debug_output(o, "JOB, syncpt %u: %u timeout: %u num_slots: %u num_handles: %u\n",
202				    job->syncpt->id, job->syncpt_end, job->timeout,
203				    job->num_slots, job->num_unpins);
204
205		show_gather(o, pb->dma + job->first_get, job->num_slots * 2, cdma,
206			    pb->dma + job->first_get, pb->mapped + job->first_get);
207
208		for (i = 0; i < job->num_cmds; i++) {
209			struct host1x_job_gather *g;
210			u32 *mapped;
211
212			if (job->cmds[i].is_wait)
213				continue;
214
215			g = &job->cmds[i].gather;
216
217			if (job->gather_copy_mapped)
218				mapped = (u32 *)job->gather_copy_mapped;
219			else
220				mapped = host1x_bo_mmap(g->bo);
221
222			if (!mapped) {
223				host1x_debug_output(o, "[could not mmap]\n");
224				continue;
225			}
226
227			host1x_debug_output(o, "  GATHER at %pad+%#x, %d words\n",
228					    &g->base, g->offset, g->words);
229
230			show_gather(o, g->base + g->offset, g->words, cdma,
231				    g->base, mapped);
232
233			if (!job->gather_copy_mapped)
234				host1x_bo_munmap(g->bo, mapped);
235		}
236	}
237}
238
239#if HOST1X_HW >= 6
240#include "debug_hw_1x06.c"
241#else
242#include "debug_hw_1x01.c"
243#endif
244
245static const struct host1x_debug_ops host1x_debug_ops = {
246	.show_channel_cdma = host1x_debug_show_channel_cdma,
247	.show_channel_fifo = host1x_debug_show_channel_fifo,
248	.show_mlocks = host1x_debug_show_mlocks,
249};
250