Commit edde4cae authored by Stanislaw Gruszka's avatar Stanislaw Gruszka
Browse files

accel/ivpu: Initial debugfs support 



Add initial debugfs support. Provide below functionality:

- print buffer objects
- print latest boot mode
- trigger vpu engine reset

Signed-off-by: default avatarStanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Reviewed-by: default avatarJacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230524074847.866711-2-stanislaw.gruszka@linux.intel.com
parent 949ab38a

drivers/accel/ivpu/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -2,6 +2,7 @@ 
# Copyright (C) 2023 Intel Corporation



intel_vpu-y := \

	ivpu_debugfs.o \

	ivpu_drv.o \

	ivpu_fw.o \

	ivpu_gem.o \

drivers/accel/ivpu/ivpu_debugfs.c

0 → 100644
+74 −0
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// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (C) 2020-2023 Intel Corporation

 */



#include <drm/drm_debugfs.h>

#include <drm/drm_file.h>

#include <drm/drm_print.h>



#include <uapi/drm/ivpu_accel.h>



#include "ivpu_debugfs.h"

#include "ivpu_drv.h"

#include "ivpu_gem.h"

#include "ivpu_jsm_msg.h"

#include "ivpu_pm.h"



static int bo_list_show(struct seq_file *s, void *v)

{

	struct drm_info_node *node = (struct drm_info_node *)s->private;

	struct drm_printer p = drm_seq_file_printer(s);



	ivpu_bo_list(node->minor->dev, &p);



	return 0;

}



static int last_bootmode_show(struct seq_file *s, void *v)

{

	struct drm_info_node *node = (struct drm_info_node *)s->private;

	struct ivpu_device *vdev = to_ivpu_device(node->minor->dev);



	seq_printf(s, "%s\n", (vdev->pm->is_warmboot) ? "warmboot" : "coldboot");



	return 0;

}



static const struct drm_info_list vdev_debugfs_list[] = {

	{"bo_list", bo_list_show, 0},

	{"last_bootmode", last_bootmode_show, 0},

};



static ssize_t

ivpu_reset_engine_fn(struct file *file, const char __user *user_buf, size_t size, loff_t *pos)

{

	struct ivpu_device *vdev = file->private_data;



	if (!size)

		return -EINVAL;



	if (ivpu_jsm_reset_engine(vdev, DRM_IVPU_ENGINE_COMPUTE))

		return -ENODEV;

	if (ivpu_jsm_reset_engine(vdev, DRM_IVPU_ENGINE_COPY))

		return -ENODEV;



	return size;

}



static const struct file_operations ivpu_reset_engine_fops = {

	.owner = THIS_MODULE,

	.open = simple_open,

	.write = ivpu_reset_engine_fn,

};



void ivpu_debugfs_init(struct drm_minor *minor)

{

	struct ivpu_device *vdev = to_ivpu_device(minor->dev);



	drm_debugfs_create_files(vdev_debugfs_list, ARRAY_SIZE(vdev_debugfs_list),

				 minor->debugfs_root, minor);



	debugfs_create_file("reset_engine", 0200, minor->debugfs_root, vdev,

			    &ivpu_reset_engine_fops);

}

drivers/accel/ivpu/ivpu_debugfs.h

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/* SPDX-License-Identifier: GPL-2.0-only */

/*

 * Copyright (C) 2020-2023 Intel Corporation

 */



#ifndef __IVPU_DEBUGFS_H__

#define __IVPU_DEBUGFS_H__



struct drm_minor;



void ivpu_debugfs_init(struct drm_minor *minor);



#endif /* __IVPU_DEBUGFS_H__ */

drivers/accel/ivpu/ivpu_drv.c

+5 −0
Original line number Diff line number Diff line
@@ -14,6 +14,7 @@ 
#include <drm/drm_prime.h>



#include "vpu_boot_api.h"

#include "ivpu_debugfs.h"

#include "ivpu_drv.h"

#include "ivpu_fw.h"

#include "ivpu_gem.h"
@@ -375,6 +376,10 @@ static const struct drm_driver driver = { 
	.postclose = ivpu_postclose,

	.gem_prime_import = ivpu_gem_prime_import,



#if defined(CONFIG_DEBUG_FS)

	.debugfs_init = ivpu_debugfs_init,

#endif



	.ioctls = ivpu_drm_ioctls,

	.num_ioctls = ARRAY_SIZE(ivpu_drm_ioctls),

	.fops = &ivpu_fops,