cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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pl111_debugfs.c (1322B)

      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}