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>
73 lines
2.5 KiB
C
73 lines
2.5 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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#ifndef PVR_PARAMS_H
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#define PVR_PARAMS_H
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#include "pvr_rogue_fwif.h"
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#include <linux/cache.h>
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#include <linux/compiler_attributes.h>
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/*
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* This is the definitive list of types allowed in the definition of
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* %PVR_DEVICE_PARAMS.
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*/
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#define PVR_PARAM_TYPE_X32_C u32
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/*
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* This macro defines all device-specific parameters; that is parameters which
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* are set independently per device.
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*
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* The X-macro accepts the following arguments. Arguments marked with [debugfs]
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* are ignored when debugfs is disabled; values used for these arguments may
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* safely be gated behind CONFIG_DEBUG_FS.
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*
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* @type_: The definitive list of allowed values is PVR_PARAM_TYPE_*_C.
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* @name_: Name of the parameter. This is used both as the field name in C and
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* stringified as the parameter name.
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* @value_: Initial/default value.
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* @desc_: String literal used as help text to describe the usage of this
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* parameter.
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* @mode_: [debugfs] One of {RO,RW}. The access mode of the debugfs entry for
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* this parameter.
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* @update_: [debugfs] When debugfs support is enabled, parameters may be
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* updated at runtime. When this happens, this function will be
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* called to allow changes to propagate. The signature of this
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* function is:
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*
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* void (*)(struct pvr_device *pvr_dev, T old_val, T new_val)
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*
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* Where T is the C type associated with @type_.
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*
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* If @mode_ does not allow write access, this function will never be
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* called. In this case, or if no update callback is required, you
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* should specify NULL for this argument.
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*/
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#define PVR_DEVICE_PARAMS \
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X(X32, fw_trace_mask, ROGUE_FWIF_LOG_TYPE_NONE, \
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"Enable FW trace for the specified groups. Specifying 0 disables " \
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"all FW tracing.", \
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RW, pvr_fw_trace_mask_update)
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struct pvr_device_params {
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#define X(type_, name_, value_, desc_, ...) \
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PVR_PARAM_TYPE_##type_##_C name_;
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PVR_DEVICE_PARAMS
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#undef X
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};
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int pvr_device_params_init(struct pvr_device_params *params);
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#if defined(CONFIG_DEBUG_FS)
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/* Forward declaration from "pvr_device.h". */
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struct pvr_device;
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/* Forward declaration from <linux/dcache.h>. */
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struct dentry;
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void pvr_params_debugfs_init(struct pvr_device *pvr_dev, struct dentry *dir);
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#endif /* defined(CONFIG_DEBUG_FS) */
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#endif /* PVR_PARAMS_H */
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