4e43d779e5
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details the full gnu general public license is included in this distribution in the file called copying extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 39 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141901.397680977@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
157 lines
3.6 KiB
C
157 lines
3.6 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Intel MIC Platform Software Stack (MPSS)
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*
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* Copyright(c) 2013 Intel Corporation.
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*
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* Intel MIC Host driver.
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*/
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#include <linux/debugfs.h>
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#include <linux/pci.h>
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#include <linux/seq_file.h>
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#include <linux/mic_common.h>
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#include "../common/mic_dev.h"
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#include "mic_device.h"
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#include "mic_smpt.h"
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/* Debugfs parent dir */
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static struct dentry *mic_dbg;
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static int mic_smpt_show(struct seq_file *s, void *pos)
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{
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int i;
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struct mic_device *mdev = s->private;
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unsigned long flags;
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seq_printf(s, "MIC %-2d |%-10s| %-14s %-10s\n",
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mdev->id, "SMPT entry", "SW DMA addr", "RefCount");
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seq_puts(s, "====================================================\n");
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if (mdev->smpt) {
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struct mic_smpt_info *smpt_info = mdev->smpt;
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spin_lock_irqsave(&smpt_info->smpt_lock, flags);
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for (i = 0; i < smpt_info->info.num_reg; i++) {
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seq_printf(s, "%9s|%-10d| %-#14llx %-10lld\n",
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" ", i, smpt_info->entry[i].dma_addr,
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smpt_info->entry[i].ref_count);
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}
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spin_unlock_irqrestore(&smpt_info->smpt_lock, flags);
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}
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seq_puts(s, "====================================================\n");
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return 0;
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}
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DEFINE_SHOW_ATTRIBUTE(mic_smpt);
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static int mic_post_code_show(struct seq_file *s, void *pos)
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{
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struct mic_device *mdev = s->private;
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u32 reg = mdev->ops->get_postcode(mdev);
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seq_printf(s, "%c%c", reg & 0xff, (reg >> 8) & 0xff);
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return 0;
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}
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DEFINE_SHOW_ATTRIBUTE(mic_post_code);
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static int mic_msi_irq_info_show(struct seq_file *s, void *pos)
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{
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struct mic_device *mdev = s->private;
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int reg;
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int i, j;
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u16 entry;
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u16 vector;
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struct pci_dev *pdev = mdev->pdev;
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if (pci_dev_msi_enabled(pdev)) {
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for (i = 0; i < mdev->irq_info.num_vectors; i++) {
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if (pdev->msix_enabled) {
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entry = mdev->irq_info.msix_entries[i].entry;
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vector = mdev->irq_info.msix_entries[i].vector;
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} else {
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entry = 0;
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vector = pdev->irq;
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}
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reg = mdev->intr_ops->read_msi_to_src_map(mdev, entry);
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seq_printf(s, "%s %-10d %s %-10d MXAR[%d]: %08X\n",
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"IRQ:", vector, "Entry:", entry, i, reg);
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seq_printf(s, "%-10s", "offset:");
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for (j = (MIC_NUM_OFFSETS - 1); j >= 0; j--)
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seq_printf(s, "%4d ", j);
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seq_puts(s, "\n");
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seq_printf(s, "%-10s", "count:");
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for (j = (MIC_NUM_OFFSETS - 1); j >= 0; j--)
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seq_printf(s, "%4d ",
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(mdev->irq_info.mic_msi_map[i] &
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BIT(j)) ? 1 : 0);
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seq_puts(s, "\n\n");
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}
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} else {
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seq_puts(s, "MSI/MSIx interrupts not enabled\n");
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}
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return 0;
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}
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DEFINE_SHOW_ATTRIBUTE(mic_msi_irq_info);
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/**
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* mic_create_debug_dir - Initialize MIC debugfs entries.
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*/
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void mic_create_debug_dir(struct mic_device *mdev)
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{
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char name[16];
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if (!mic_dbg)
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return;
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scnprintf(name, sizeof(name), "mic%d", mdev->id);
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mdev->dbg_dir = debugfs_create_dir(name, mic_dbg);
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if (!mdev->dbg_dir)
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return;
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debugfs_create_file("smpt", 0444, mdev->dbg_dir, mdev,
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&mic_smpt_fops);
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debugfs_create_file("post_code", 0444, mdev->dbg_dir, mdev,
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&mic_post_code_fops);
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debugfs_create_file("msi_irq_info", 0444, mdev->dbg_dir, mdev,
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&mic_msi_irq_info_fops);
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}
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/**
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* mic_delete_debug_dir - Uninitialize MIC debugfs entries.
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*/
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void mic_delete_debug_dir(struct mic_device *mdev)
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{
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if (!mdev->dbg_dir)
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return;
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debugfs_remove_recursive(mdev->dbg_dir);
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}
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/**
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* mic_init_debugfs - Initialize global debugfs entry.
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*/
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void __init mic_init_debugfs(void)
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{
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mic_dbg = debugfs_create_dir(KBUILD_MODNAME, NULL);
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if (!mic_dbg)
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pr_err("can't create debugfs dir\n");
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}
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/**
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* mic_exit_debugfs - Uninitialize global debugfs entry
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*/
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void mic_exit_debugfs(void)
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{
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debugfs_remove(mic_dbg);
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}
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