// SPDX-License-Identifier: GPL-2.0-only /* * Intel MIC Platform Software Stack (MPSS) * * Copyright(c) 2013 Intel Corporation. * * Disclaimer: The codes contained in these modules may be specific to * the Intel Software Development Platform codenamed: Knights Ferry, and * the Intel product codenamed: Knights Corner, and are not backward * compatible with other Intel products. Additionally, Intel will NOT * support the codes or instruction set in future products. * * Intel MIC Card driver. */ #include <linux/debugfs.h> #include <linux/delay.h> #include <linux/seq_file.h> #include <linux/interrupt.h> #include <linux/device.h> #include "../common/mic_dev.h" #include "mic_device.h" /* Debugfs parent dir */ static struct dentry *mic_dbg; /** * mic_intr_show - Send interrupts to host. */ static int mic_intr_show(struct seq_file *s, void *unused) { struct mic_driver *mdrv = s->private; struct mic_device *mdev = &mdrv->mdev; mic_send_intr(mdev, 0); msleep(1000); mic_send_intr(mdev, 1); msleep(1000); mic_send_intr(mdev, 2); msleep(1000); mic_send_intr(mdev, 3); msleep(1000); return 0; } DEFINE_SHOW_ATTRIBUTE(mic_intr); /** * mic_create_card_debug_dir - Initialize MIC debugfs entries. */ void __init mic_create_card_debug_dir(struct mic_driver *mdrv) { struct dentry *d; if (!mic_dbg) return; mdrv->dbg_dir = debugfs_create_dir(mdrv->name, mic_dbg); if (!mdrv->dbg_dir) { dev_err(mdrv->dev, "Cant create dbg_dir %s\n", mdrv->name); return; } d = debugfs_create_file("intr_test", 0444, mdrv->dbg_dir, mdrv, &mic_intr_fops); if (!d) { dev_err(mdrv->dev, "Cant create dbg intr_test %s\n", mdrv->name); return; } } /** * mic_delete_card_debug_dir - Uninitialize MIC debugfs entries. */ void mic_delete_card_debug_dir(struct mic_driver *mdrv) { if (!mdrv->dbg_dir) return; debugfs_remove_recursive(mdrv->dbg_dir); } /** * mic_init_card_debugfs - Initialize global debugfs entry. */ void __init mic_init_card_debugfs(void) { mic_dbg = debugfs_create_dir(KBUILD_MODNAME, NULL); if (!mic_dbg) pr_err("can't create debugfs dir\n"); } /** * mic_exit_card_debugfs - Uninitialize global debugfs entry */ void mic_exit_card_debugfs(void) { debugfs_remove(mic_dbg); }