LXR linux/drivers/gpu/drm/pl111/pl111

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 *  Copyright © 2017 Broadcom
   4 */
   5
   6#include <linux/seq_file.h>
   7
   8#include <drm/drm_debugfs.h>
   9#include <drm/drm_file.h>
  10
  11#include "pl111_drm.h"
  12
  13#define REGDEF(reg) { reg, #reg }
  14static const struct {
  15        u32 reg;
  16        const char *name;
  17} pl111_reg_defs[] = {
  18        REGDEF(CLCD_TIM0),
  19        REGDEF(CLCD_TIM1),
  20        REGDEF(CLCD_TIM2),
  21        REGDEF(CLCD_TIM3),
  22        REGDEF(CLCD_UBAS),
  23        REGDEF(CLCD_LBAS),
  24        REGDEF(CLCD_PL111_CNTL),
  25        REGDEF(CLCD_PL111_IENB),
  26        REGDEF(CLCD_PL111_RIS),
  27        REGDEF(CLCD_PL111_MIS),
  28        REGDEF(CLCD_PL111_ICR),
  29        REGDEF(CLCD_PL111_UCUR),
  30        REGDEF(CLCD_PL111_LCUR),
  31};
  32
  33static int pl111_debugfs_regs(struct seq_file *m, void *unused)
  34{
  35        struct drm_info_node *node = (struct drm_info_node *)m->private;
  36        struct drm_device *dev = node->minor->dev;
  37        struct pl111_drm_dev_private *priv = dev->dev_private;
  38        int i;
  39
  40        for (i = 0; i < ARRAY_SIZE(pl111_reg_defs); i++) {
  41                seq_printf(m, "%s (0x%04x): 0x%08x\n",
  42                           pl111_reg_defs[i].name, pl111_reg_defs[i].reg,
  43                           readl(priv->regs + pl111_reg_defs[i].reg));
  44        }
  45
  46        return 0;
  47}
  48
  49static const struct drm_info_list pl111_debugfs_list[] = {
  50        {"regs", pl111_debugfs_regs, 0},
  51};
  52
  53void
  54pl111_debugfs_init(struct drm_minor *minor)
  55{
  56        drm_debugfs_create_files(pl111_debugfs_list,
  57                                 ARRAY_SIZE(pl111_debugfs_list),
  58                                 minor->debugfs_root, minor);
  59}
  60