1// SPDX-License-Identifier: GPL-2.0
2/* Copyright(c) 2023 Advanced Micro Devices, Inc */
3
4#include <linux/pci.h>
5
6#include "core.h"
7
8static struct dentry *pdsc_dir;
9
10void pdsc_debugfs_create(void)
11{
12	pdsc_dir = debugfs_create_dir(PDS_CORE_DRV_NAME, NULL);
13}
14
15void pdsc_debugfs_destroy(void)
16{
17	debugfs_remove_recursive(pdsc_dir);
18}
19
20void pdsc_debugfs_add_dev(struct pdsc *pdsc)
21{
22	pdsc->dentry = debugfs_create_dir(pci_name(pdsc->pdev), pdsc_dir);
23
24	debugfs_create_ulong("state", 0400, pdsc->dentry, &pdsc->state);
25}
26
27void pdsc_debugfs_del_dev(struct pdsc *pdsc)
28{
29	debugfs_remove_recursive(pdsc->dentry);
30	pdsc->dentry = NULL;
31}
32
33static int identity_show(struct seq_file *seq, void *v)
34{
35	struct pds_core_dev_identity *ident;
36	struct pdsc *pdsc = seq->private;
37	int vt;
38
39	ident = &pdsc->dev_ident;
40
41	seq_printf(seq, "fw_heartbeat:     0x%x\n",
42		   ioread32(&pdsc->info_regs->fw_heartbeat));
43
44	seq_printf(seq, "nlifs:            %d\n",
45		   le32_to_cpu(ident->nlifs));
46	seq_printf(seq, "nintrs:           %d\n",
47		   le32_to_cpu(ident->nintrs));
48	seq_printf(seq, "ndbpgs_per_lif:   %d\n",
49		   le32_to_cpu(ident->ndbpgs_per_lif));
50	seq_printf(seq, "intr_coal_mult:   %d\n",
51		   le32_to_cpu(ident->intr_coal_mult));
52	seq_printf(seq, "intr_coal_div:    %d\n",
53		   le32_to_cpu(ident->intr_coal_div));
54
55	seq_puts(seq, "vif_types:        ");
56	for (vt = 0; vt < PDS_DEV_TYPE_MAX; vt++)
57		seq_printf(seq, "%d ",
58			   le16_to_cpu(pdsc->dev_ident.vif_types[vt]));
59	seq_puts(seq, "\n");
60
61	return 0;
62}
63DEFINE_SHOW_ATTRIBUTE(identity);
64
65void pdsc_debugfs_add_ident(struct pdsc *pdsc)
66{
67	/* This file will already exist in the reset flow */
68	if (debugfs_lookup("identity", pdsc->dentry))
69		return;
70
71	debugfs_create_file("identity", 0400, pdsc->dentry,
72			    pdsc, &identity_fops);
73}
74
75static int viftype_show(struct seq_file *seq, void *v)
76{
77	struct pdsc *pdsc = seq->private;
78	int vt;
79
80	for (vt = 0; vt < PDS_DEV_TYPE_MAX; vt++) {
81		if (!pdsc->viftype_status[vt].name)
82			continue;
83
84		seq_printf(seq, "%s\t%d supported %d enabled\n",
85			   pdsc->viftype_status[vt].name,
86			   pdsc->viftype_status[vt].supported,
87			   pdsc->viftype_status[vt].enabled);
88	}
89	return 0;
90}
91DEFINE_SHOW_ATTRIBUTE(viftype);
92
93void pdsc_debugfs_add_viftype(struct pdsc *pdsc)
94{
95	debugfs_create_file("viftypes", 0400, pdsc->dentry,
96			    pdsc, &viftype_fops);
97}
98
99static const struct debugfs_reg32 intr_ctrl_regs[] = {
100	{ .name = "coal_init", .offset = 0, },
101	{ .name = "mask", .offset = 4, },
102	{ .name = "credits", .offset = 8, },
103	{ .name = "mask_on_assert", .offset = 12, },
104	{ .name = "coal_timer", .offset = 16, },
105};
106
107void pdsc_debugfs_add_qcq(struct pdsc *pdsc, struct pdsc_qcq *qcq)
108{
109	struct dentry *qcq_dentry, *q_dentry, *cq_dentry, *intr_dentry;
110	struct debugfs_regset32 *intr_ctrl_regset;
111	struct pdsc_queue *q = &qcq->q;
112	struct pdsc_cq *cq = &qcq->cq;
113
114	qcq_dentry = debugfs_create_dir(q->name, pdsc->dentry);
115	if (IS_ERR_OR_NULL(qcq_dentry))
116		return;
117	qcq->dentry = qcq_dentry;
118
119	debugfs_create_x64("q_base_pa", 0400, qcq_dentry, &qcq->q_base_pa);
120	debugfs_create_x32("q_size", 0400, qcq_dentry, &qcq->q_size);
121	debugfs_create_x64("cq_base_pa", 0400, qcq_dentry, &qcq->cq_base_pa);
122	debugfs_create_x32("cq_size", 0400, qcq_dentry, &qcq->cq_size);
123	debugfs_create_x32("accum_work", 0400, qcq_dentry, &qcq->accum_work);
124
125	q_dentry = debugfs_create_dir("q", qcq->dentry);
126	if (IS_ERR_OR_NULL(q_dentry))
127		return;
128
129	debugfs_create_u32("index", 0400, q_dentry, &q->index);
130	debugfs_create_u32("num_descs", 0400, q_dentry, &q->num_descs);
131	debugfs_create_u32("desc_size", 0400, q_dentry, &q->desc_size);
132	debugfs_create_u32("pid", 0400, q_dentry, &q->pid);
133
134	debugfs_create_u16("tail", 0400, q_dentry, &q->tail_idx);
135	debugfs_create_u16("head", 0400, q_dentry, &q->head_idx);
136
137	cq_dentry = debugfs_create_dir("cq", qcq->dentry);
138	if (IS_ERR_OR_NULL(cq_dentry))
139		return;
140
141	debugfs_create_x64("base_pa", 0400, cq_dentry, &cq->base_pa);
142	debugfs_create_u32("num_descs", 0400, cq_dentry, &cq->num_descs);
143	debugfs_create_u32("desc_size", 0400, cq_dentry, &cq->desc_size);
144	debugfs_create_bool("done_color", 0400, cq_dentry, &cq->done_color);
145	debugfs_create_u16("tail", 0400, cq_dentry, &cq->tail_idx);
146
147	if (qcq->flags & PDS_CORE_QCQ_F_INTR) {
148		struct pdsc_intr_info *intr = &pdsc->intr_info[qcq->intx];
149
150		intr_dentry = debugfs_create_dir("intr", qcq->dentry);
151		if (IS_ERR_OR_NULL(intr_dentry))
152			return;
153
154		debugfs_create_u32("index", 0400, intr_dentry, &intr->index);
155		debugfs_create_u32("vector", 0400, intr_dentry, &intr->vector);
156
157		intr_ctrl_regset = kzalloc(sizeof(*intr_ctrl_regset),
158					   GFP_KERNEL);
159		if (!intr_ctrl_regset)
160			return;
161		intr_ctrl_regset->regs = intr_ctrl_regs;
162		intr_ctrl_regset->nregs = ARRAY_SIZE(intr_ctrl_regs);
163		intr_ctrl_regset->base = &pdsc->intr_ctrl[intr->index];
164
165		debugfs_create_regset32("intr_ctrl", 0400, intr_dentry,
166					intr_ctrl_regset);
167	}
168};
169
170void pdsc_debugfs_del_qcq(struct pdsc_qcq *qcq)
171{
172	debugfs_remove_recursive(qcq->dentry);
173	qcq->dentry = NULL;
174}
175