summaryrefslogtreecommitdiffstats
path: root/drivers/gpu/host1x/hw/debug_hw_1x01.c
blob: 85242a59fa6a666f16da805e1344f3dd522847ac (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (C) 2010 Google, Inc.
 * Author: Erik Gilling <konkers@android.com>
 *
 * Copyright (C) 2011-2013 NVIDIA Corporation
 */

#include "../dev.h"
#include "../debug.h"
#include "../cdma.h"
#include "../channel.h"

static void host1x_debug_show_channel_cdma(struct host1x *host,
					   struct host1x_channel *ch,
					   struct output *o)
{
	struct host1x_cdma *cdma = &ch->cdma;
	dma_addr_t dmastart, dmaend;
	u32 dmaput, dmaget, dmactrl;
	u32 cbstat, cbread;
	u32 val, base, baseval;

	dmastart = host1x_ch_readl(ch, HOST1X_CHANNEL_DMASTART);
	dmaend = host1x_ch_readl(ch, HOST1X_CHANNEL_DMAEND);
	dmaput = host1x_ch_readl(ch, HOST1X_CHANNEL_DMAPUT);
	dmaget = host1x_ch_readl(ch, HOST1X_CHANNEL_DMAGET);
	dmactrl = host1x_ch_readl(ch, HOST1X_CHANNEL_DMACTRL);
	cbread = host1x_sync_readl(host, HOST1X_SYNC_CBREAD(ch->id));
	cbstat = host1x_sync_readl(host, HOST1X_SYNC_CBSTAT(ch->id));

	host1x_debug_output(o, "%u-%s: ", ch->id, dev_name(ch->dev));

	if (HOST1X_CHANNEL_DMACTRL_DMASTOP_V(dmactrl) ||
	    !ch->cdma.push_buffer.mapped) {
		host1x_debug_output(o, "inactive\n\n");
		return;
	}

	if (HOST1X_SYNC_CBSTAT_CBCLASS_V(cbstat) == HOST1X_CLASS_HOST1X &&
	    HOST1X_SYNC_CBSTAT_CBOFFSET_V(cbstat) ==
			HOST1X_UCLASS_WAIT_SYNCPT)
		host1x_debug_output(o, "waiting on syncpt %d val %d\n",
				    cbread >> 24, cbread & 0xffffff);
	else if (HOST1X_SYNC_CBSTAT_CBCLASS_V(cbstat) ==
				HOST1X_CLASS_HOST1X &&
		 HOST1X_SYNC_CBSTAT_CBOFFSET_V(cbstat) ==
				HOST1X_UCLASS_WAIT_SYNCPT_BASE) {
		base = (cbread >> 16) & 0xff;
		baseval =
			host1x_sync_readl(host, HOST1X_SYNC_SYNCPT_BASE(base));
		val = cbread & 0xffff;
		host1x_debug_output(o, "waiting on syncpt %d val %d (base %d = %d; offset = %d)\n",
				    cbread >> 24, baseval + val, base,
				    baseval, val);
	} else
		host1x_debug_output(o, "active class %02x, offset %04x, val %08x\n",
				    HOST1X_SYNC_CBSTAT_CBCLASS_V(cbstat),
				    HOST1X_SYNC_CBSTAT_CBOFFSET_V(cbstat),
				    cbread);

	host1x_debug_output(o, "DMASTART %pad, DMAEND %pad\n", &dmastart, &dmaend);
	host1x_debug_output(o, "DMAPUT %08x DMAGET %08x DMACTL %08x\n",
			    dmaput, dmaget, dmactrl);
	host1x_debug_output(o, "CBREAD %08x CBSTAT %08x\n", cbread, cbstat);

	show_channel_gathers(o, cdma);
	host1x_debug_output(o, "\n");
}

static void host1x_debug_show_channel_fifo(struct host1x *host,
					   struct host1x_channel *ch,
					   struct output *o)
{
	u32 val, rd_ptr, wr_ptr, start, end;
	unsigned int data_count = 0;

	host1x_debug_output(o, "%u: fifo:\n", ch->id);

	val = host1x_ch_readl(ch, HOST1X_CHANNEL_FIFOSTAT);
	host1x_debug_output(o, "FIFOSTAT %08x\n", val);
	if (HOST1X_CHANNEL_FIFOSTAT_CFEMPTY_V(val)) {
		host1x_debug_output(o, "[empty]\n");
		return;
	}

	host1x_sync_writel(host, 0x0, HOST1X_SYNC_CFPEEK_CTRL);
	host1x_sync_writel(host, HOST1X_SYNC_CFPEEK_CTRL_ENA_F(1) |
			   HOST1X_SYNC_CFPEEK_CTRL_CHANNR_F(ch->id),
			   HOST1X_SYNC_CFPEEK_CTRL);

	val = host1x_sync_readl(host, HOST1X_SYNC_CFPEEK_PTRS);
	rd_ptr = HOST1X_SYNC_CFPEEK_PTRS_CF_RD_PTR_V(val);
	wr_ptr = HOST1X_SYNC_CFPEEK_PTRS_CF_WR_PTR_V(val);

	val = host1x_sync_readl(host, HOST1X_SYNC_CF_SETUP(ch->id));
	start = HOST1X_SYNC_CF_SETUP_BASE_V(val);
	end = HOST1X_SYNC_CF_SETUP_LIMIT_V(val);

	do {
		host1x_sync_writel(host, 0x0, HOST1X_SYNC_CFPEEK_CTRL);
		host1x_sync_writel(host, HOST1X_SYNC_CFPEEK_CTRL_ENA_F(1) |
				   HOST1X_SYNC_CFPEEK_CTRL_CHANNR_F(ch->id) |
				   HOST1X_SYNC_CFPEEK_CTRL_ADDR_F(rd_ptr),
				   HOST1X_SYNC_CFPEEK_CTRL);
		val = host1x_sync_readl(host, HOST1X_SYNC_CFPEEK_READ);

		if (!data_count) {
			host1x_debug_output(o, "%08x: ", val);
			data_count = show_channel_command(o, val, NULL);
		} else {
			host1x_debug_cont(o, "%08x%s", val,
					  data_count > 1 ? ", " : "])\n");
			data_count--;
		}

		if (rd_ptr == end)
			rd_ptr = start;
		else
			rd_ptr++;
	} while (rd_ptr != wr_ptr);

	if (data_count)
		host1x_debug_cont(o, ", ...])\n");
	host1x_debug_output(o, "\n");

	host1x_sync_writel(host, 0x0, HOST1X_SYNC_CFPEEK_CTRL);
}

static void host1x_debug_show_mlocks(struct host1x *host, struct output *o)
{
	unsigned int i;

	host1x_debug_output(o, "---- mlocks ----\n");

	for (i = 0; i < host1x_syncpt_nb_mlocks(host); i++) {
		u32 owner =
			host1x_sync_readl(host, HOST1X_SYNC_MLOCK_OWNER(i));
		if (HOST1X_SYNC_MLOCK_OWNER_CH_OWNS_V(owner))
			host1x_debug_output(o, "%u: locked by channel %u\n",
				i, HOST1X_SYNC_MLOCK_OWNER_CHID_V(owner));
		else if (HOST1X_SYNC_MLOCK_OWNER_CPU_OWNS_V(owner))
			host1x_debug_output(o, "%u: locked by cpu\n", i);
		else
			host1x_debug_output(o, "%u: unlocked\n", i);
	}

	host1x_debug_output(o, "\n");
}