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3a93261f70
The Freescale ePAPR reference hypervisor provides interrupt controller
services via a hypercall interface, instead of emulating the MPIC
controller. This is called the VMPIC.
The ePAPR "virtual interrupt controller" provides interrupt controller
services for external interrupts. External interrupts received by a
partition can come from two sources:
- Hardware interrupts - hardware interrupts come from external
interrupt lines or on-chip I/O devices.
- Virtual interrupts - virtual interrupts are generated by the hypervisor
as part of some hypervisor service or hypervisor-created virtual device.
Both types of interrupts are processed using the same programming model and
same set of hypercalls.
Signed-off-by: Ashish Kalra <ashish.kalra@freescale.com>
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
40 lines
961 B
C
40 lines
961 B
C
/*
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* EHV_PIC private definitions and structure.
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*
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* Copyright 2008-2010 Freescale Semiconductor, Inc.
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*
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* This file is licensed under the terms of the GNU General Public License
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* version 2. This program is licensed "as is" without any warranty of any
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* kind, whether express or implied.
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*/
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#ifndef __EHV_PIC_H__
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#define __EHV_PIC_H__
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#include <linux/irq.h>
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#define NR_EHV_PIC_INTS 1024
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#define EHV_PIC_INFO(name) EHV_PIC_##name
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#define EHV_PIC_VECPRI_POLARITY_NEGATIVE 0
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#define EHV_PIC_VECPRI_POLARITY_POSITIVE 1
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#define EHV_PIC_VECPRI_SENSE_EDGE 0
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#define EHV_PIC_VECPRI_SENSE_LEVEL 0x2
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#define EHV_PIC_VECPRI_POLARITY_MASK 0x1
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#define EHV_PIC_VECPRI_SENSE_MASK 0x2
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struct ehv_pic {
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/* The remapper for this EHV_PIC */
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struct irq_host *irqhost;
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/* The "linux" controller struct */
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struct irq_chip hc_irq;
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/* core int flag */
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int coreint_flag;
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};
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void ehv_pic_init(void);
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unsigned int ehv_pic_get_irq(void);
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#endif /* __EHV_PIC_H__ */
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