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https://github.com/projectacrn/acrn-hypervisor.git
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c492a14e53
It's not necessary to specify priority for dynamic allocated vector, because
nested irq is not supported on HV, and irq of any priority would cause VM exit.
This commit makes the following changes:
- remove the argument indicating priority in struct irq_request_info and
following functions:
ptdev_activate_entry()
find_available_vector()
irq_desc_alloc_vector()
normal_register_handler()
- change the macro of vector ranges:
VECTOR_DYNAMIC_START/END for dynamically allocable vectors;
VECTOR_FIXED_START/END for fixed allocated vectors, such as vector for
timer etc.
Signed-off-by: Yan, Like <like.yan@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
89 lines
2.1 KiB
C
89 lines
2.1 KiB
C
/*
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* Copyright (C) 2018 Intel Corporation. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef COMMON_IRQ_H
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#define COMMON_IRQ_H
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enum irq_mode {
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IRQ_PULSE,
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IRQ_ASSERT,
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IRQ_DEASSERT,
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};
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enum irq_state {
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IRQ_NOT_ASSIGNED = 0,
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IRQ_ASSIGNED_SHARED,
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IRQ_ASSIGNED_NOSHARE,
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};
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enum irq_desc_state {
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IRQ_DESC_PENDING,
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IRQ_DESC_IN_PROCESS,
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};
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typedef int (*dev_handler_t)(int irq, void *dev_data);
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struct irq_request_info {
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/* vector set to 0xE0 ~ 0xFF for pri_register_handler
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* and set to VECTOR_INVALID for normal_register_handler
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*/
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uint32_t vector;
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dev_handler_t func;
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void *dev_data;
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bool share;
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char *name;
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};
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/* any field change in below required irq_lock protection with irqsave */
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struct irq_desc {
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uint32_t irq; /* index to irq_desc_base */
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enum irq_state used; /* this irq have assigned to device */
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enum irq_desc_state state; /* irq_desc status */
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uint32_t vector; /* assigned vector */
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void *handler_data; /* irq_handler private data */
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int (*irq_handler)(struct irq_desc *irq_desc, void *handler_data);
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struct dev_handler_node *dev_list;
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spinlock_t irq_lock;
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uint64_t *irq_cnt; /* this irq cnt happened on CPUs */
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uint64_t irq_lost_cnt;
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};
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struct dev_handler_node {
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char name[32];
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void *dev_data;
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dev_handler_t dev_handler;
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struct dev_handler_node *next;
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struct irq_desc *desc;
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};
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uint32_t irq_mark_used(uint32_t irq);
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uint32_t irq_desc_alloc_vector(uint32_t irq);
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void irq_desc_try_free_vector(uint32_t irq);
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uint32_t irq_to_vector(uint32_t irq);
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uint32_t dev_to_irq(struct dev_handler_node *node);
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uint32_t dev_to_vector(struct dev_handler_node *node);
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struct dev_handler_node*
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pri_register_handler(uint32_t irq,
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uint32_t vector,
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dev_handler_t func,
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void *dev_data,
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const char *name);
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struct dev_handler_node*
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normal_register_handler(uint32_t irq,
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dev_handler_t func,
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void *dev_data,
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bool share,
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const char *name);
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void unregister_handler_common(struct dev_handler_node *node);
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typedef int (*irq_handler_t)(struct irq_desc *desc, void *handler_data);
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void update_irq_handler(uint32_t irq, irq_handler_t func);
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#endif /* COMMON_IRQ_H */
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