1 /*
2  *  Copyright © 2017 Broadcom
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License version 2 as
6  * published by the Free Software Foundation.
7  */
8 
9 #include <linux/amba/clcd-regs.h>
10 #include <linux/seq_file.h>
11 
12 #include <drm/drm_debugfs.h>
13 #include <drm/drm_file.h>
14 
15 #include "pl111_drm.h"
16 
17 #define REGDEF(reg) { reg, #reg }
18 static const struct {
19 	u32 reg;
20 	const char *name;
21 } pl111_reg_defs[] = {
22 	REGDEF(CLCD_TIM0),
23 	REGDEF(CLCD_TIM1),
24 	REGDEF(CLCD_TIM2),
25 	REGDEF(CLCD_TIM3),
26 	REGDEF(CLCD_UBAS),
27 	REGDEF(CLCD_LBAS),
28 	REGDEF(CLCD_PL111_CNTL),
29 	REGDEF(CLCD_PL111_IENB),
30 	REGDEF(CLCD_PL111_RIS),
31 	REGDEF(CLCD_PL111_MIS),
32 	REGDEF(CLCD_PL111_ICR),
33 	REGDEF(CLCD_PL111_UCUR),
34 	REGDEF(CLCD_PL111_LCUR),
35 };
36 
37 int pl111_debugfs_regs(struct seq_file *m, void *unused)
38 {
39 	struct drm_info_node *node = (struct drm_info_node *)m->private;
40 	struct drm_device *dev = node->minor->dev;
41 	struct pl111_drm_dev_private *priv = dev->dev_private;
42 	int i;
43 
44 	for (i = 0; i < ARRAY_SIZE(pl111_reg_defs); i++) {
45 		seq_printf(m, "%s (0x%04x): 0x%08x\n",
46 			   pl111_reg_defs[i].name, pl111_reg_defs[i].reg,
47 			   readl(priv->regs + pl111_reg_defs[i].reg));
48 	}
49 
50 	return 0;
51 }
52 
53 static const struct drm_info_list pl111_debugfs_list[] = {
54 	{"regs", pl111_debugfs_regs, 0},
55 };
56 
57 int
58 pl111_debugfs_init(struct drm_minor *minor)
59 {
60 	return drm_debugfs_create_files(pl111_debugfs_list,
61 					ARRAY_SIZE(pl111_debugfs_list),
62 					minor->debugfs_root, minor);
63 }
64