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We have slightly changed the architecture interfaces to support htirq PCI driver. It's safe because currently Hypertransport interrupt is only enabled on x86 platforms. Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: David Cohen <david.a.cohen@linux.intel.com> Cc: Sander Eikelenboom <linux@eikelenboom.it> Cc: David Vrabel <david.vrabel@citrix.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Joerg Roedel <joro@8bytes.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Rafael J. Wysocki <rjw@rjwysocki.net> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Dimitri Sivanich <sivanich@sgi.com> Link: http://lkml.kernel.org/r/1428905519-23704-22-git-send-email-jiang.liu@linux.intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
39 lines
1.0 KiB
C
39 lines
1.0 KiB
C
#ifndef LINUX_HTIRQ_H
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#define LINUX_HTIRQ_H
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struct pci_dev;
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struct irq_data;
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struct ht_irq_msg {
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u32 address_lo; /* low 32 bits of the ht irq message */
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u32 address_hi; /* high 32 bits of the it irq message */
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};
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typedef void (ht_irq_update_t)(struct pci_dev *dev, int irq,
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struct ht_irq_msg *msg);
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struct ht_irq_cfg {
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struct pci_dev *dev;
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/* Update callback used to cope with buggy hardware */
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ht_irq_update_t *update;
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unsigned pos;
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unsigned idx;
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struct ht_irq_msg msg;
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};
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/* Helper functions.. */
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void fetch_ht_irq_msg(unsigned int irq, struct ht_irq_msg *msg);
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void write_ht_irq_msg(unsigned int irq, struct ht_irq_msg *msg);
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void mask_ht_irq(struct irq_data *data);
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void unmask_ht_irq(struct irq_data *data);
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/* The arch hook for getting things started */
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int arch_setup_ht_irq(int idx, int pos, struct pci_dev *dev,
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ht_irq_update_t *update);
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void arch_teardown_ht_irq(unsigned int irq);
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/* For drivers of buggy hardware */
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int __ht_create_irq(struct pci_dev *dev, int idx, ht_irq_update_t *update);
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#endif /* LINUX_HTIRQ_H */
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