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cb56cd6108
Firmware trace is exposed at /sys/debug/dri/<dev_nr>/pvr_fw/trace_0.
Trace is enabled via the group mask at
/sys/debug/dri/<dev_nr>/pvr_params/fw_trace_mask.
Changes since v8:
- Corrected license identifiers
Changes since v3:
- Use drm_dev_{enter,exit}
Co-developed-by: Matt Coster <matt.coster@imgtec.com>
Signed-off-by: Matt Coster <matt.coster@imgtec.com>
Signed-off-by: Sarah Walker <sarah.walker@imgtec.com>
Signed-off-by: Donald Robson <donald.robson@imgtec.com>
Link: https://lore.kernel.org/r/009cf9fee347fa96c8a665dc368fc54a5ffceff0.1700668843.git.donald.robson@imgtec.com
Signed-off-by: Maxime Ripard <mripard@kernel.org>
53 lines
1.3 KiB
C
53 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-only OR MIT
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/* Copyright (c) 2023 Imagination Technologies Ltd. */
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#include "pvr_debugfs.h"
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#include "pvr_device.h"
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#include "pvr_fw_trace.h"
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#include "pvr_params.h"
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#include <linux/dcache.h>
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#include <linux/debugfs.h>
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#include <linux/err.h>
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <drm/drm_device.h>
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#include <drm/drm_file.h>
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#include <drm/drm_print.h>
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static const struct pvr_debugfs_entry pvr_debugfs_entries[] = {
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{"pvr_params", pvr_params_debugfs_init},
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{"pvr_fw", pvr_fw_trace_debugfs_init},
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};
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void
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pvr_debugfs_init(struct drm_minor *minor)
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{
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struct drm_device *drm_dev = minor->dev;
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struct pvr_device *pvr_dev = to_pvr_device(drm_dev);
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struct dentry *root = minor->debugfs_root;
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size_t i;
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for (i = 0; i < ARRAY_SIZE(pvr_debugfs_entries); ++i) {
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const struct pvr_debugfs_entry *entry = &pvr_debugfs_entries[i];
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struct dentry *dir;
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dir = debugfs_create_dir(entry->name, root);
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if (IS_ERR(dir)) {
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drm_warn(drm_dev,
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"failed to create debugfs dir '%s' (err=%d)",
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entry->name, (int)PTR_ERR(dir));
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continue;
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}
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entry->init(pvr_dev, dir);
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}
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}
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/*
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* Since all entries are created under &drm_minor->debugfs_root, there's no
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* need for a pvr_debugfs_fini() as DRM will clean up everything under its root
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* automatically.
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*/
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