mirror of https://gitee.com/openkylin/linux.git
169 lines
4.1 KiB
C
169 lines
4.1 KiB
C
/*
|
|
* Intel MIC Platform Software Stack (MPSS)
|
|
*
|
|
* Copyright(c) 2013 Intel Corporation.
|
|
*
|
|
* 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".
|
|
*
|
|
* Intel MIC Host driver.
|
|
*
|
|
*/
|
|
#include <linux/debugfs.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/seq_file.h>
|
|
|
|
#include <linux/mic_common.h>
|
|
#include "../common/mic_dev.h"
|
|
#include "mic_device.h"
|
|
#include "mic_smpt.h"
|
|
|
|
/* Debugfs parent dir */
|
|
static struct dentry *mic_dbg;
|
|
|
|
static int mic_smpt_show(struct seq_file *s, void *pos)
|
|
{
|
|
int i;
|
|
struct mic_device *mdev = s->private;
|
|
unsigned long flags;
|
|
|
|
seq_printf(s, "MIC %-2d |%-10s| %-14s %-10s\n",
|
|
mdev->id, "SMPT entry", "SW DMA addr", "RefCount");
|
|
seq_puts(s, "====================================================\n");
|
|
|
|
if (mdev->smpt) {
|
|
struct mic_smpt_info *smpt_info = mdev->smpt;
|
|
spin_lock_irqsave(&smpt_info->smpt_lock, flags);
|
|
for (i = 0; i < smpt_info->info.num_reg; i++) {
|
|
seq_printf(s, "%9s|%-10d| %-#14llx %-10lld\n",
|
|
" ", i, smpt_info->entry[i].dma_addr,
|
|
smpt_info->entry[i].ref_count);
|
|
}
|
|
spin_unlock_irqrestore(&smpt_info->smpt_lock, flags);
|
|
}
|
|
seq_puts(s, "====================================================\n");
|
|
return 0;
|
|
}
|
|
|
|
DEFINE_SHOW_ATTRIBUTE(mic_smpt);
|
|
|
|
static int mic_post_code_show(struct seq_file *s, void *pos)
|
|
{
|
|
struct mic_device *mdev = s->private;
|
|
u32 reg = mdev->ops->get_postcode(mdev);
|
|
|
|
seq_printf(s, "%c%c", reg & 0xff, (reg >> 8) & 0xff);
|
|
return 0;
|
|
}
|
|
|
|
DEFINE_SHOW_ATTRIBUTE(mic_post_code);
|
|
|
|
static int mic_msi_irq_info_show(struct seq_file *s, void *pos)
|
|
{
|
|
struct mic_device *mdev = s->private;
|
|
int reg;
|
|
int i, j;
|
|
u16 entry;
|
|
u16 vector;
|
|
struct pci_dev *pdev = mdev->pdev;
|
|
|
|
if (pci_dev_msi_enabled(pdev)) {
|
|
for (i = 0; i < mdev->irq_info.num_vectors; i++) {
|
|
if (pdev->msix_enabled) {
|
|
entry = mdev->irq_info.msix_entries[i].entry;
|
|
vector = mdev->irq_info.msix_entries[i].vector;
|
|
} else {
|
|
entry = 0;
|
|
vector = pdev->irq;
|
|
}
|
|
|
|
reg = mdev->intr_ops->read_msi_to_src_map(mdev, entry);
|
|
|
|
seq_printf(s, "%s %-10d %s %-10d MXAR[%d]: %08X\n",
|
|
"IRQ:", vector, "Entry:", entry, i, reg);
|
|
|
|
seq_printf(s, "%-10s", "offset:");
|
|
for (j = (MIC_NUM_OFFSETS - 1); j >= 0; j--)
|
|
seq_printf(s, "%4d ", j);
|
|
seq_puts(s, "\n");
|
|
|
|
|
|
seq_printf(s, "%-10s", "count:");
|
|
for (j = (MIC_NUM_OFFSETS - 1); j >= 0; j--)
|
|
seq_printf(s, "%4d ",
|
|
(mdev->irq_info.mic_msi_map[i] &
|
|
BIT(j)) ? 1 : 0);
|
|
seq_puts(s, "\n\n");
|
|
}
|
|
} else {
|
|
seq_puts(s, "MSI/MSIx interrupts not enabled\n");
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
DEFINE_SHOW_ATTRIBUTE(mic_msi_irq_info);
|
|
|
|
/**
|
|
* mic_create_debug_dir - Initialize MIC debugfs entries.
|
|
*/
|
|
void mic_create_debug_dir(struct mic_device *mdev)
|
|
{
|
|
char name[16];
|
|
|
|
if (!mic_dbg)
|
|
return;
|
|
|
|
scnprintf(name, sizeof(name), "mic%d", mdev->id);
|
|
mdev->dbg_dir = debugfs_create_dir(name, mic_dbg);
|
|
if (!mdev->dbg_dir)
|
|
return;
|
|
|
|
debugfs_create_file("smpt", 0444, mdev->dbg_dir, mdev,
|
|
&mic_smpt_fops);
|
|
|
|
debugfs_create_file("post_code", 0444, mdev->dbg_dir, mdev,
|
|
&mic_post_code_fops);
|
|
|
|
debugfs_create_file("msi_irq_info", 0444, mdev->dbg_dir, mdev,
|
|
&mic_msi_irq_info_fops);
|
|
}
|
|
|
|
/**
|
|
* mic_delete_debug_dir - Uninitialize MIC debugfs entries.
|
|
*/
|
|
void mic_delete_debug_dir(struct mic_device *mdev)
|
|
{
|
|
if (!mdev->dbg_dir)
|
|
return;
|
|
|
|
debugfs_remove_recursive(mdev->dbg_dir);
|
|
}
|
|
|
|
/**
|
|
* mic_init_debugfs - Initialize global debugfs entry.
|
|
*/
|
|
void __init mic_init_debugfs(void)
|
|
{
|
|
mic_dbg = debugfs_create_dir(KBUILD_MODNAME, NULL);
|
|
if (!mic_dbg)
|
|
pr_err("can't create debugfs dir\n");
|
|
}
|
|
|
|
/**
|
|
* mic_exit_debugfs - Uninitialize global debugfs entry
|
|
*/
|
|
void mic_exit_debugfs(void)
|
|
{
|
|
debugfs_remove(mic_dbg);
|
|
}
|