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Currently, vc4 has its own debugfs infrastructure that adds the debugfs files on drm_dev_register(). With the introduction of the new debugfs, functions, replace the vc4 debugfs structure with the DRM debugfs device-centered function, drm_debugfs_add_file(). Moreover, remove the explicit error handling of debugfs related functions, considering that the only failure mode is -ENOMEM and also that error handling is not recommended for debugfs functions, as pointed out in [1]. [1] https://lore.kernel.org/all/YWAmZdRwnAt6wh9B@kroah.com/ Signed-off-by: Maíra Canal <mcanal@igalia.com> Reviewed-by: Maxime Ripard <maxime@cerno.tech> Reviewed-by: Melissa Wen <mwen@igalia.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Maíra Canal <mairacanal@riseup.net> Link: https://patchwork.freedesktop.org/patch/msgid/20221219120621.15086-5-mcanal@igalia.com
58 lines
1.3 KiB
C
58 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright © 2014 Broadcom
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*/
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#include <drm/drm_drv.h>
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#include <linux/seq_file.h>
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#include <linux/circ_buf.h>
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#include <linux/ctype.h>
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#include <linux/debugfs.h>
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#include <linux/platform_device.h>
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#include "vc4_drv.h"
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#include "vc4_regs.h"
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/*
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* Called at drm_dev_register() time on each of the minors registered
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* by the DRM device, to attach the debugfs files.
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*/
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void
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vc4_debugfs_init(struct drm_minor *minor)
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{
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struct vc4_dev *vc4 = to_vc4_dev(minor->dev);
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struct drm_device *drm = &vc4->base;
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drm_WARN_ON(drm, vc4_hvs_debugfs_init(minor));
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if (vc4->v3d) {
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drm_WARN_ON(drm, vc4_bo_debugfs_init(minor));
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drm_WARN_ON(drm, vc4_v3d_debugfs_init(minor));
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}
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}
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static int vc4_debugfs_regset32(struct seq_file *m, void *unused)
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{
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struct drm_debugfs_entry *entry = m->private;
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struct drm_device *drm = entry->dev;
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struct debugfs_regset32 *regset = entry->file.data;
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struct drm_printer p = drm_seq_file_printer(m);
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int idx;
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if (!drm_dev_enter(drm, &idx))
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return -ENODEV;
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drm_print_regset32(&p, regset);
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drm_dev_exit(idx);
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return 0;
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}
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void vc4_debugfs_add_regset32(struct drm_device *drm,
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const char *name,
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struct debugfs_regset32 *regset)
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{
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drm_debugfs_add_file(drm, name, vc4_debugfs_regset32, regset);
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}
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