68f73a1bef
Since 987d65d013 (drm: debugfs: make
drm_debugfs_create_files() never fail), there is no need to ever check
the return value for drm_debugfs_create_files(). Therefore remove the
checks for the return value and subsequent error handling in
omap_debugfs_init().
These changes also enables the changing of omap_debugfs_init() to return
0 directly.
v2: convert omap_debugfs_init() to return 0 instead of void to avoid
introduction of build issues and enable individual driver compilation.
References: https://lists.freedesktop.org/archives/dri-devel/2020-February/257183.html
Signed-off-by: Wambui Karuga <wambui.karugax@gmail.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200310133121.27913-14-wambui.karugax@gmail.com
98 lines
2.3 KiB
C
98 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
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* Author: Rob Clark <rob.clark@linaro.org>
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*/
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#include <linux/seq_file.h>
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#include <drm/drm_crtc.h>
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#include <drm/drm_debugfs.h>
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#include <drm/drm_file.h>
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#include <drm/drm_fb_helper.h>
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#include "omap_drv.h"
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#include "omap_dmm_tiler.h"
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#ifdef CONFIG_DEBUG_FS
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static int gem_show(struct seq_file *m, void *arg)
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{
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struct drm_info_node *node = (struct drm_info_node *) m->private;
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struct drm_device *dev = node->minor->dev;
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struct omap_drm_private *priv = dev->dev_private;
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seq_printf(m, "All Objects:\n");
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mutex_lock(&priv->list_lock);
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omap_gem_describe_objects(&priv->obj_list, m);
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mutex_unlock(&priv->list_lock);
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return 0;
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}
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static int mm_show(struct seq_file *m, void *arg)
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{
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struct drm_info_node *node = (struct drm_info_node *) m->private;
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struct drm_device *dev = node->minor->dev;
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struct drm_printer p = drm_seq_file_printer(m);
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drm_mm_print(&dev->vma_offset_manager->vm_addr_space_mm, &p);
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return 0;
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}
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#ifdef CONFIG_DRM_FBDEV_EMULATION
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static int fb_show(struct seq_file *m, void *arg)
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{
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struct drm_info_node *node = (struct drm_info_node *) m->private;
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struct drm_device *dev = node->minor->dev;
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struct omap_drm_private *priv = dev->dev_private;
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struct drm_framebuffer *fb;
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seq_printf(m, "fbcon ");
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omap_framebuffer_describe(priv->fbdev->fb, m);
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mutex_lock(&dev->mode_config.fb_lock);
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list_for_each_entry(fb, &dev->mode_config.fb_list, head) {
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if (fb == priv->fbdev->fb)
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continue;
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seq_printf(m, "user ");
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omap_framebuffer_describe(fb, m);
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}
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mutex_unlock(&dev->mode_config.fb_lock);
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return 0;
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}
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#endif
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/* list of debufs files that are applicable to all devices */
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static struct drm_info_list omap_debugfs_list[] = {
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{"gem", gem_show, 0},
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{"mm", mm_show, 0},
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#ifdef CONFIG_DRM_FBDEV_EMULATION
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{"fb", fb_show, 0},
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#endif
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};
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/* list of debugfs files that are specific to devices with dmm/tiler */
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static struct drm_info_list omap_dmm_debugfs_list[] = {
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{"tiler_map", tiler_map_show, 0},
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};
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int omap_debugfs_init(struct drm_minor *minor)
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{
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drm_debugfs_create_files(omap_debugfs_list,
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ARRAY_SIZE(omap_debugfs_list),
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minor->debugfs_root, minor);
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if (dmm_is_available())
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drm_debugfs_create_files(omap_dmm_debugfs_list,
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ARRAY_SIZE(omap_dmm_debugfs_list),
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minor->debugfs_root, minor);
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return 0;
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}
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#endif
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