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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omap_debugfs.c (2396B)

      1// SPDX-License-Identifier: GPL-2.0-only
      2/*
      3 * Copyright (C) 2011 Texas Instruments Incorporated - https://www.ti.com/
      4 * Author: Rob Clark <rob.clark@linaro.org>
      5 */
      6
      7#include <linux/seq_file.h>
      8
      9#include <drm/drm_crtc.h>
     10#include <drm/drm_debugfs.h>
     11#include <drm/drm_file.h>
     12#include <drm/drm_fb_helper.h>
     13
     14#include "omap_drv.h"
     15#include "omap_dmm_tiler.h"
     16
     17#ifdef CONFIG_DEBUG_FS
     18
     19static int gem_show(struct seq_file *m, void *arg)
     20{
     21	struct drm_info_node *node = (struct drm_info_node *) m->private;
     22	struct drm_device *dev = node->minor->dev;
     23	struct omap_drm_private *priv = dev->dev_private;
     24
     25	seq_printf(m, "All Objects:\n");
     26	mutex_lock(&priv->list_lock);
     27	omap_gem_describe_objects(&priv->obj_list, m);
     28	mutex_unlock(&priv->list_lock);
     29
     30	return 0;
     31}
     32
     33static int mm_show(struct seq_file *m, void *arg)
     34{
     35	struct drm_info_node *node = (struct drm_info_node *) m->private;
     36	struct drm_device *dev = node->minor->dev;
     37	struct drm_printer p = drm_seq_file_printer(m);
     38
     39	drm_mm_print(&dev->vma_offset_manager->vm_addr_space_mm, &p);
     40
     41	return 0;
     42}
     43
     44#ifdef CONFIG_DRM_FBDEV_EMULATION
     45static int fb_show(struct seq_file *m, void *arg)
     46{
     47	struct drm_info_node *node = (struct drm_info_node *) m->private;
     48	struct drm_device *dev = node->minor->dev;
     49	struct omap_drm_private *priv = dev->dev_private;
     50	struct drm_framebuffer *fb;
     51
     52	seq_printf(m, "fbcon ");
     53	omap_framebuffer_describe(priv->fbdev->fb, m);
     54
     55	mutex_lock(&dev->mode_config.fb_lock);
     56	list_for_each_entry(fb, &dev->mode_config.fb_list, head) {
     57		if (fb == priv->fbdev->fb)
     58			continue;
     59
     60		seq_printf(m, "user ");
     61		omap_framebuffer_describe(fb, m);
     62	}
     63	mutex_unlock(&dev->mode_config.fb_lock);
     64
     65	return 0;
     66}
     67#endif
     68
     69/* list of debufs files that are applicable to all devices */
     70static struct drm_info_list omap_debugfs_list[] = {
     71	{"gem", gem_show, 0},
     72	{"mm", mm_show, 0},
     73#ifdef CONFIG_DRM_FBDEV_EMULATION
     74	{"fb", fb_show, 0},
     75#endif
     76};
     77
     78/* list of debugfs files that are specific to devices with dmm/tiler */
     79static struct drm_info_list omap_dmm_debugfs_list[] = {
     80	{"tiler_map", tiler_map_show, 0},
     81};
     82
     83void omap_debugfs_init(struct drm_minor *minor)
     84{
     85	drm_debugfs_create_files(omap_debugfs_list,
     86				 ARRAY_SIZE(omap_debugfs_list),
     87				 minor->debugfs_root, minor);
     88
     89	if (dmm_is_available())
     90		drm_debugfs_create_files(omap_dmm_debugfs_list,
     91					 ARRAY_SIZE(omap_dmm_debugfs_list),
     92					 minor->debugfs_root, minor);
     93}
     94
     95#endif