Sarah Walker cb56cd6108
drm/imagination: Add firmware trace to debugfs
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>
2023-11-23 09:01:47 +01:00

30 lines
757 B
C

/* SPDX-License-Identifier: GPL-2.0-only OR MIT */
/* Copyright (c) 2023 Imagination Technologies Ltd. */
#ifndef PVR_DEBUGFS_H
#define PVR_DEBUGFS_H
/* Forward declaration from <drm/drm_drv.h>. */
struct drm_minor;
#if defined(CONFIG_DEBUG_FS)
/* Forward declaration from "pvr_device.h". */
struct pvr_device;
/* Forward declaration from <linux/dcache.h>. */
struct dentry;
struct pvr_debugfs_entry {
const char *name;
void (*init)(struct pvr_device *pvr_dev, struct dentry *dir);
};
void pvr_debugfs_init(struct drm_minor *minor);
#else /* defined(CONFIG_DEBUG_FS) */
#include <linux/compiler_attributes.h>
static __always_inline void pvr_debugfs_init(struct drm_minor *minor) {}
#endif /* defined(CONFIG_DEBUG_FS) */
#endif /* PVR_DEBUGFS_H */