/*
 * Freescale QUICC Engine USB Host Controller Driver
 *
 * Copyright (c) Freescale Semicondutor, Inc. 2006.
 *               Shlomi Gridish <gridish@freescale.com>
 *               Jerry Huang <Chang-Ming.Huang@freescale.com>
 * Copyright (c) Logic Product Development, Inc. 2007
 *               Peter Barada <peterb@logicpd.com>
 * Copyright (c) MontaVista Software, Inc. 2008.
 *               Anton Vorontsov <avorontsov@ru.mvista.com>
 *
 * This program is free software; you can redistribute  it and/or modify it
 * under  the terms of  the GNU General  Public License as published by the
 * Free Software Foundation;  either version 2 of the  License, or (at your
 * option) any later version.
 */

#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include <linux/usb.h>
#include <linux/usb/hcd.h>
#include "fhci.h"

void fhci_dbg_isr(struct fhci_hcd *fhci, int usb_er)
{
	int i;

	if (usb_er == -1) {
		fhci->usb_irq_stat[12]++;
		return;
	}

	for (i = 0; i < 12; ++i) {
		if (usb_er & (1 << i))
			fhci->usb_irq_stat[i]++;
	}
}

static int fhci_dfs_regs_show(struct seq_file *s, void *v)
{
	struct fhci_hcd *fhci = s->private;
	struct qe_usb_ctlr __iomem *regs = fhci->regs;

	seq_printf(s,
		"mode: 0x%x\n" "addr: 0x%x\n"
		"command: 0x%x\n" "ep0: 0x%x\n"
		"event: 0x%x\n" "mask: 0x%x\n"
		"status: 0x%x\n" "SOF timer: %d\n"
		"frame number: %d\n"
		"lines status: 0x%x\n",
		in_8(&regs->usb_usmod), in_8(&regs->usb_usadr),
		in_8(&regs->usb_uscom), in_be16(&regs->usb_usep[0]),
		in_be16(&regs->usb_usber), in_be16(&regs->usb_usbmr),
		in_8(&regs->usb_usbs), in_be16(&regs->usb_ussft),
		in_be16(&regs->usb_usfrn),
		fhci_ioports_check_bus_state(fhci));

	return 0;
}

static int fhci_dfs_irq_stat_show(struct seq_file *s, void *v)
{
	struct fhci_hcd *fhci = s->private;
	int *usb_irq_stat = fhci->usb_irq_stat;

	seq_printf(s,
		"RXB: %d\n" "TXB: %d\n" "BSY: %d\n"
		"SOF: %d\n" "TXE0: %d\n" "TXE1: %d\n"
		"TXE2: %d\n" "TXE3: %d\n" "IDLE: %d\n"
		"RESET: %d\n" "SFT: %d\n" "MSF: %d\n"
		"IDLE_ONLY: %d\n",
		usb_irq_stat[0], usb_irq_stat[1], usb_irq_stat[2],
		usb_irq_stat[3], usb_irq_stat[4], usb_irq_stat[5],
		usb_irq_stat[6], usb_irq_stat[7], usb_irq_stat[8],
		usb_irq_stat[9], usb_irq_stat[10], usb_irq_stat[11],
		usb_irq_stat[12]);

	return 0;
}

static int fhci_dfs_regs_open(struct inode *inode, struct file *file)
{
	return single_open(file, fhci_dfs_regs_show, inode->i_private);
}

static int fhci_dfs_irq_stat_open(struct inode *inode, struct file *file)
{
	return single_open(file, fhci_dfs_irq_stat_show, inode->i_private);
}

static const struct file_operations fhci_dfs_regs_fops = {
	.open = fhci_dfs_regs_open,
	.read = seq_read,
	.llseek = seq_lseek,
	.release = single_release,
};

static const struct file_operations fhci_dfs_irq_stat_fops = {
	.open = fhci_dfs_irq_stat_open,
	.read = seq_read,
	.llseek = seq_lseek,
	.release = single_release,
};

void fhci_dfs_create(struct fhci_hcd *fhci)
{
	struct device *dev = fhci_to_hcd(fhci)->self.controller;

	fhci->dfs_root = debugfs_create_dir(dev_name(dev), usb_debug_root);
	if (!fhci->dfs_root) {
		WARN_ON(1);
		return;
	}

	fhci->dfs_regs = debugfs_create_file("regs", S_IFREG | S_IRUGO,
		fhci->dfs_root, fhci, &fhci_dfs_regs_fops);

	fhci->dfs_irq_stat = debugfs_create_file("irq_stat",
		S_IFREG | S_IRUGO, fhci->dfs_root, fhci,
		&fhci_dfs_irq_stat_fops);

	WARN_ON(!fhci->dfs_regs || !fhci->dfs_irq_stat);
}

void fhci_dfs_destroy(struct fhci_hcd *fhci)
{
	if (!fhci->dfs_root)
		return;

	debugfs_remove(fhci->dfs_irq_stat);
	debugfs_remove(fhci->dfs_regs);
	debugfs_remove(fhci->dfs_root);
}
iff options</b><form method='get'><input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='dfef358bd1beb4e7b5c94eca944be9cd23dfc752'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Christoph Hellwig &lt;hch@lst.de&gt;</td><td class='right'>2017-01-30 13:15:41 +0100</td></tr>
<tr><th>committer</th><td>Bjorn Helgaas &lt;bhelgaas@google.com&gt;</td><td class='right'>2017-02-02 10:35:46 -0600</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/bench/numa.c?h=nds-private-remove&amp;id=dfef358bd1beb4e7b5c94eca944be9cd23dfc752'>dfef358bd1beb4e7b5c94eca944be9cd23dfc752</a> (<a href='/cgit.cgi/linux/net-next.git/patch/tools/perf/bench/numa.c?id=dfef358bd1beb4e7b5c94eca944be9cd23dfc752'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&amp;id=dfef358bd1beb4e7b5c94eca944be9cd23dfc752'>b9a2afb38a4c2ac8ad31f49ec0d71fe9e5b1994c</a> /<a href='/cgit.cgi/linux/net-next.git/tree/tools/perf/bench/numa.c?h=nds-private-remove&amp;id=dfef358bd1beb4e7b5c94eca944be9cd23dfc752'>tools/perf/bench/numa.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/bench/numa.c?h=nds-private-remove&amp;id=030305d69fc6963c16003f50d7e8d74b02d0a143'>030305d69fc6963c16003f50d7e8d74b02d0a143</a> (<a href='/cgit.cgi/linux/net-next.git/diff/tools/perf/bench/numa.c?h=nds-private-remove&amp;id=dfef358bd1beb4e7b5c94eca944be9cd23dfc752&amp;id2=030305d69fc6963c16003f50d7e8d74b02d0a143'>diff</a>)</td></tr></table>
<div class='commit-subject'>PCI/MSI: Don't apply affinity if there aren't enough vectors left</div><div class='commit-msg'>Bart reported a problem wіth an out of bounds access in the low-level IRQ
affinity code, which we root caused to the qla2xxx driver assigning all its
MSI-X vectors to the pre and post vectors, and not having any left for the
actually spread IRQs.

Fix this issue by not asking for affinity assignment when there are no
vectors to assign left.

Fixes: 402723ad5c62 ("PCI/MSI: Provide pci_alloc_irq_vectors_affinity()")
Link: https://lkml.kernel.org/r/1485359225.3093.3.camel@sandisk.com
Reported-by: Bart Van Assche &lt;bart.vanassche@sandisk.com&gt;
Tested-by: Bart Van Assche &lt;bart.vanassche@sandisk.com&gt;
Signed-off-by: Christoph Hellwig &lt;hch@lst.de&gt;
Signed-off-by: Bjorn Helgaas &lt;bhelgaas@google.com&gt;</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=dfef358bd1beb4e7b5c94eca944be9cd23dfc752'>Diffstat</a> (limited to 'tools/perf/bench/numa.c')</div><table summary='diffstat' class='diffstat'>