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
host1x_debug_show_channel_cdma(struct host1x * host,struct host1x_channel * ch,struct output * o)14 static void host1x_debug_show_channel_cdma(struct host1x *host,
15 struct host1x_channel *ch,
16 struct output *o)
17 {
18 struct host1x_cdma *cdma = &ch->cdma;
19 dma_addr_t dmastart, dmaend;
20 u32 dmaput, dmaget, dmactrl;
21 u32 cbstat, cbread;
22 u32 val, base, baseval;
23
24 dmastart = host1x_ch_readl(ch, HOST1X_CHANNEL_DMASTART);
25 dmaend = host1x_ch_readl(ch, HOST1X_CHANNEL_DMAEND);
26 dmaput = host1x_ch_readl(ch, HOST1X_CHANNEL_DMAPUT);
27 dmaget = host1x_ch_readl(ch, HOST1X_CHANNEL_DMAGET);
28 dmactrl = host1x_ch_readl(ch, HOST1X_CHANNEL_DMACTRL);
29 cbread = host1x_sync_readl(host, HOST1X_SYNC_CBREAD(ch->id));
30 cbstat = host1x_sync_readl(host, HOST1X_SYNC_CBSTAT(ch->id));
31
32 host1x_debug_output(o, "%u-%s: ", ch->id, dev_name(ch->dev));
33
34 if (HOST1X_CHANNEL_DMACTRL_DMASTOP_V(dmactrl) ||
35 !ch->cdma.push_buffer.mapped) {
36 host1x_debug_output(o, "inactive\n\n");
37 return;
38 }
39
40 if (HOST1X_SYNC_CBSTAT_CBCLASS_V(cbstat) == HOST1X_CLASS_HOST1X &&
41 HOST1X_SYNC_CBSTAT_CBOFFSET_V(cbstat) ==
42 HOST1X_UCLASS_WAIT_SYNCPT)
43 host1x_debug_output(o, "waiting on syncpt %d val %d\n",
44 cbread >> 24, cbread & 0xffffff);
45 else if (HOST1X_SYNC_CBSTAT_CBCLASS_V(cbstat) ==
46 HOST1X_CLASS_HOST1X &&
47 HOST1X_SYNC_CBSTAT_CBOFFSET_V(cbstat) ==
48 HOST1X_UCLASS_WAIT_SYNCPT_BASE) {
49 base = (cbread >> 16) & 0xff;
50 baseval =
51 host1x_sync_readl(host, HOST1X_SYNC_SYNCPT_BASE(base));
52 val = cbread & 0xffff;
53 host1x_debug_output(o, "waiting on syncpt %d val %d (base %d = %d; offset = %d)\n",
54 cbread >> 24, baseval + val, base,
55 baseval, val);
56 } else
57 host1x_debug_output(o, "active class %02x, offset %04x, val %08x\n",
58 HOST1X_SYNC_CBSTAT_CBCLASS_V(cbstat),
59 HOST1X_SYNC_CBSTAT_CBOFFSET_V(cbstat),
60 cbread);
61
62 host1x_debug_output(o, "DMASTART %pad, DMAEND %pad\n", &dmastart, &dmaend);
63 host1x_debug_output(o, "DMAPUT %08x DMAGET %08x DMACTL %08x\n",
64 dmaput, dmaget, dmactrl);
65 host1x_debug_output(o, "CBREAD %08x CBSTAT %08x\n", cbread, cbstat);
66
67 show_channel_gathers(o, cdma);
68 host1x_debug_output(o, "\n");
69 }
70
host1x_debug_show_channel_fifo(struct host1x * host,struct host1x_channel * ch,struct output * o)71 static void host1x_debug_show_channel_fifo(struct host1x *host,
72 struct host1x_channel *ch,
73 struct output *o)
74 {
75 u32 val, rd_ptr, wr_ptr, start, end;
76 unsigned int data_count = 0;
77
78 host1x_debug_output(o, "%u: fifo:\n", ch->id);
79
80 val = host1x_ch_readl(ch, HOST1X_CHANNEL_FIFOSTAT);
81 host1x_debug_output(o, "FIFOSTAT %08x\n", val);
82 if (HOST1X_CHANNEL_FIFOSTAT_CFEMPTY_V(val)) {
83 host1x_debug_output(o, "[empty]\n");
84 return;
85 }
86
87 host1x_sync_writel(host, 0x0, HOST1X_SYNC_CFPEEK_CTRL);
88 host1x_sync_writel(host, HOST1X_SYNC_CFPEEK_CTRL_ENA_F(1) |
89 HOST1X_SYNC_CFPEEK_CTRL_CHANNR_F(ch->id),
90 HOST1X_SYNC_CFPEEK_CTRL);
91
92 val = host1x_sync_readl(host, HOST1X_SYNC_CFPEEK_PTRS);
93 rd_ptr = HOST1X_SYNC_CFPEEK_PTRS_CF_RD_PTR_V(val);
94 wr_ptr = HOST1X_SYNC_CFPEEK_PTRS_CF_WR_PTR_V(val);
95
96 val = host1x_sync_readl(host, HOST1X_SYNC_CF_SETUP(ch->id));
97 start = HOST1X_SYNC_CF_SETUP_BASE_V(val);
98 end = HOST1X_SYNC_CF_SETUP_LIMIT_V(val);
99
100 do {
101 host1x_sync_writel(host, 0x0, HOST1X_SYNC_CFPEEK_CTRL);
102 host1x_sync_writel(host, HOST1X_SYNC_CFPEEK_CTRL_ENA_F(1) |
103 HOST1X_SYNC_CFPEEK_CTRL_CHANNR_F(ch->id) |
104 HOST1X_SYNC_CFPEEK_CTRL_ADDR_F(rd_ptr),
105 HOST1X_SYNC_CFPEEK_CTRL);
106 val = host1x_sync_readl(host, HOST1X_SYNC_CFPEEK_READ);
107
108 if (!data_count) {
109 host1x_debug_output(o, "%08x: ", val);
110 data_count = show_channel_command(o, val, NULL);
111 } else {
112 host1x_debug_cont(o, "%08x%s", val,
113 data_count > 1 ? ", " : "])\n");
114 data_count--;
115 }
116
117 if (rd_ptr == end)
118 rd_ptr = start;
119 else
120 rd_ptr++;
121 } while (rd_ptr != wr_ptr);
122
123 if (data_count)
124 host1x_debug_cont(o, ", ...])\n");
125 host1x_debug_output(o, "\n");
126
127 host1x_sync_writel(host, 0x0, HOST1X_SYNC_CFPEEK_CTRL);
128 }
129
host1x_debug_show_mlocks(struct host1x * host,struct output * o)130 static void host1x_debug_show_mlocks(struct host1x *host, struct output *o)
131 {
132 unsigned int i;
133
134 host1x_debug_output(o, "---- mlocks ----\n");
135
136 for (i = 0; i < host1x_syncpt_nb_mlocks(host); i++) {
137 u32 owner =
138 host1x_sync_readl(host, HOST1X_SYNC_MLOCK_OWNER(i));
139 if (HOST1X_SYNC_MLOCK_OWNER_CH_OWNS_V(owner))
140 host1x_debug_output(o, "%u: locked by channel %u\n",
141 i, HOST1X_SYNC_MLOCK_OWNER_CHID_V(owner));
142 else if (HOST1X_SYNC_MLOCK_OWNER_CPU_OWNS_V(owner))
143 host1x_debug_output(o, "%u: locked by cpu\n", i);
144 else
145 host1x_debug_output(o, "%u: unlocked\n", i);
146 }
147
148 host1x_debug_output(o, "\n");
149 }
150