1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  *  Copyright © 2017 Broadcom
4  */
5 
6 #include <linux/amba/clcd-regs.h>
7 #include <linux/seq_file.h>
8 #include <drm/drm_debugfs.h>
9 #include <drm/drmP.h>
10 #include "pl111_drm.h"
11 
12 #define REGDEF(reg) { reg, #reg }
13 static const struct {
14 	u32 reg;
15 	const char *name;
16 } pl111_reg_defs[] = {
17 	REGDEF(CLCD_TIM0),
18 	REGDEF(CLCD_TIM1),
19 	REGDEF(CLCD_TIM2),
20 	REGDEF(CLCD_TIM3),
21 	REGDEF(CLCD_UBAS),
22 	REGDEF(CLCD_LBAS),
23 	REGDEF(CLCD_PL111_CNTL),
24 	REGDEF(CLCD_PL111_IENB),
25 	REGDEF(CLCD_PL111_RIS),
26 	REGDEF(CLCD_PL111_MIS),
27 	REGDEF(CLCD_PL111_ICR),
28 	REGDEF(CLCD_PL111_UCUR),
29 	REGDEF(CLCD_PL111_LCUR),
30 };
31 
32 int pl111_debugfs_regs(struct seq_file *m, void *unused)
33 {
34 	struct drm_info_node *node = (struct drm_info_node *)m->private;
35 	struct drm_device *dev = node->minor->dev;
36 	struct pl111_drm_dev_private *priv = dev->dev_private;
37 	int i;
38 
39 	for (i = 0; i < ARRAY_SIZE(pl111_reg_defs); i++) {
40 		seq_printf(m, "%s (0x%04x): 0x%08x\n",
41 			   pl111_reg_defs[i].name, pl111_reg_defs[i].reg,
42 			   readl(priv->regs + pl111_reg_defs[i].reg));
43 	}
44 
45 	return 0;
46 }
47 
48 static const struct drm_info_list pl111_debugfs_list[] = {
49 	{"regs", pl111_debugfs_regs, 0},
50 };
51 
52 int
53 pl111_debugfs_init(struct drm_minor *minor)
54 {
55 	return drm_debugfs_create_files(pl111_debugfs_list,
56 					ARRAY_SIZE(pl111_debugfs_list),
57 					minor->debugfs_root, minor);
58 }
59