/* Generic I/O port emulation, based on MN10300 code
*
* Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public Licence
* as published by the Free Software Foundation; either version
* 2 of the Licence, or (at your option) any later version.
*/
#ifndef __ASM_GENERIC_PCI_IOMAP_H
#define __ASM_GENERIC_PCI_IOMAP_H
struct pci_dev;
#ifdef CONFIG_PCI
/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
extern void __iomem *pci_iomap_wc(struct pci_dev *dev, int bar, unsigned long max);
extern void __iomem *pci_iomap_range(struct pci_dev *dev, int bar,
unsigned long offset,
unsigned long maxlen);
extern void __iomem *pci_iomap_wc_range(struct pci_dev *dev, int bar,
unsigned long offset,
unsigned long maxlen);
/* Create a virtual mapping cookie for a port on a given PCI device.
* Do not call this directly, it exists to make it easier for architectures
* to override */
#ifdef CONFIG_NO_GENERIC_PCI_IOPORT_MAP
extern void __iomem *__pci_ioport_map(struct pci_dev *dev, unsigned long port,
unsigned int nr);
#else
#define __pci_ioport_map(dev, port, nr) ioport_map((port), (nr))
#endif
#elif defined(CONFIG_GENERIC_PCI_IOMAP)
static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
{
return NULL;
}
static inline void __iomem *pci_iomap_wc(struct pci_dev *dev, int bar, unsigned long max)
{
return NULL;
}
static inline void __iomem *pci_iomap_range(struct pci_dev *dev, int bar,
unsigned long offset,
unsigned long maxlen)
{
return NULL;
}
static inline void __iomem *pci_iomap_wc_range(struct pci_dev *dev, int bar,
unsigned long offset,
unsigned long maxlen)
{
return NULL;
}
#endif
#endif /* __ASM_GENERIC_IO_H */
lass='active' href='/cgit.cgi/linux/net-next.git/diff/include/dt-bindings/soc/qcom,gsbi.h?id=30103b5b6432a51c3822a26dc340e35d91237f39'>diff
|
x86/irq: Make irq activate operations symmetric
The recent commit which prevents double activation of interrupts unearthed
interesting code in x86. The code (ab)uses irq_domain_activate_irq() to
reconfigure an already activated interrupt. That trips over the prevention
code now.
Fix it by deactivating the interrupt before activating the new configuration.
Fixes: 08d85f3ea99f1 "irqdomain: Avoid activating interrupts more than once"
Reported-and-tested-by: Mike Galbraith <efault@gmx.de>
Reported-and-tested-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1701311901580.3457@nanos