From 50a212ec906f7524620675f0c57357691c26c81f Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 16 Oct 2024 01:20:19 +0000
Subject: [PATCH] 修改GPIO导出默认初始值
---
kernel/drivers/xen/events/events_internal.h | 104 +++++++++++-----------------------------------------
1 files changed, 22 insertions(+), 82 deletions(-)
diff --git a/kernel/drivers/xen/events/events_internal.h b/kernel/drivers/xen/events/events_internal.h
index cc37b71..4d3398e 100644
--- a/kernel/drivers/xen/events/events_internal.h
+++ b/kernel/drivers/xen/events/events_internal.h
@@ -1,70 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Xen Event Channels (internal header)
*
* Copyright (C) 2013 Citrix Systems R&D Ltd.
- *
- * This source code is licensed under the GNU General Public License,
- * Version 2 or later. See the file COPYING for more details.
*/
#ifndef __EVENTS_INTERNAL_H__
#define __EVENTS_INTERNAL_H__
-
-/* Interrupt types. */
-enum xen_irq_type {
- IRQT_UNBOUND = 0,
- IRQT_PIRQ,
- IRQT_VIRQ,
- IRQT_IPI,
- IRQT_EVTCHN
-};
-
-/*
- * Packed IRQ information:
- * type - enum xen_irq_type
- * event channel - irq->event channel mapping
- * cpu - cpu this event channel is bound to
- * index - type-specific information:
- * PIRQ - vector, with MSB being "needs EIO", or physical IRQ of the HVM
- * guest, or GSI (real passthrough IRQ) of the device.
- * VIRQ - virq number
- * IPI - IPI vector
- * EVTCHN -
- */
-struct irq_info {
- struct list_head list;
- struct list_head eoi_list;
- short refcnt;
- short spurious_cnt;
- short type; /* type */
- u8 mask_reason; /* Why is event channel masked */
-#define EVT_MASK_REASON_EXPLICIT 0x01
-#define EVT_MASK_REASON_TEMPORARY 0x02
-#define EVT_MASK_REASON_EOI_PENDING 0x04
- u8 is_active; /* Is event just being handled? */
- unsigned irq;
- unsigned int evtchn; /* event channel */
- unsigned short cpu; /* cpu bound */
- unsigned short eoi_cpu; /* EOI must happen on this cpu */
- unsigned int irq_epoch; /* If eoi_cpu valid: irq_epoch of event */
- u64 eoi_time; /* Time in jiffies when to EOI. */
- raw_spinlock_t lock;
-
- union {
- unsigned short virq;
- enum ipi_vector ipi;
- struct {
- unsigned short pirq;
- unsigned short gsi;
- unsigned char vector;
- unsigned char flags;
- uint16_t domid;
- } pirq;
- } u;
-};
-
-#define PIRQ_NEEDS_EOI (1 << 0)
-#define PIRQ_SHAREABLE (1 << 1)
-#define PIRQ_MSI_GROUP (1 << 2)
struct evtchn_loop_ctrl;
@@ -72,15 +13,16 @@
unsigned (*max_channels)(void);
unsigned (*nr_channels)(void);
- int (*setup)(struct irq_info *info);
+ int (*setup)(evtchn_port_t port);
void (*remove)(evtchn_port_t port, unsigned int cpu);
- void (*bind_to_cpu)(struct irq_info *info, unsigned cpu);
+ void (*bind_to_cpu)(evtchn_port_t evtchn, unsigned int cpu,
+ unsigned int old_cpu);
- void (*clear_pending)(unsigned port);
- void (*set_pending)(unsigned port);
- bool (*is_pending)(unsigned port);
- void (*mask)(unsigned port);
- void (*unmask)(unsigned port);
+ void (*clear_pending)(evtchn_port_t port);
+ void (*set_pending)(evtchn_port_t port);
+ bool (*is_pending)(evtchn_port_t port);
+ void (*mask)(evtchn_port_t port);
+ void (*unmask)(evtchn_port_t port);
void (*handle_events)(unsigned cpu, struct evtchn_loop_ctrl *ctrl);
void (*resume)(void);
@@ -91,13 +33,10 @@
extern const struct evtchn_ops *evtchn_ops;
-extern int **evtchn_to_irq;
-int get_evtchn_to_irq(unsigned int evtchn);
+int get_evtchn_to_irq(evtchn_port_t evtchn);
void handle_irq_for_port(evtchn_port_t port, struct evtchn_loop_ctrl *ctrl);
-struct irq_info *info_for_irq(unsigned irq);
-unsigned cpu_from_irq(unsigned irq);
-unsigned cpu_from_evtchn(unsigned int evtchn);
+unsigned int cpu_from_evtchn(evtchn_port_t evtchn);
static inline unsigned xen_evtchn_max_channels(void)
{
@@ -108,10 +47,10 @@
* Do any ABI specific setup for a bound event channel before it can
* be unmasked and used.
*/
-static inline int xen_evtchn_port_setup(struct irq_info *info)
+static inline int xen_evtchn_port_setup(evtchn_port_t evtchn)
{
if (evtchn_ops->setup)
- return evtchn_ops->setup(info);
+ return evtchn_ops->setup(evtchn);
return 0;
}
@@ -122,33 +61,34 @@
evtchn_ops->remove(evtchn, cpu);
}
-static inline void xen_evtchn_port_bind_to_cpu(struct irq_info *info,
- unsigned cpu)
+static inline void xen_evtchn_port_bind_to_cpu(evtchn_port_t evtchn,
+ unsigned int cpu,
+ unsigned int old_cpu)
{
- evtchn_ops->bind_to_cpu(info, cpu);
+ evtchn_ops->bind_to_cpu(evtchn, cpu, old_cpu);
}
-static inline void clear_evtchn(unsigned port)
+static inline void clear_evtchn(evtchn_port_t port)
{
evtchn_ops->clear_pending(port);
}
-static inline void set_evtchn(unsigned port)
+static inline void set_evtchn(evtchn_port_t port)
{
evtchn_ops->set_pending(port);
}
-static inline bool test_evtchn(unsigned port)
+static inline bool test_evtchn(evtchn_port_t port)
{
return evtchn_ops->is_pending(port);
}
-static inline void mask_evtchn(unsigned port)
+static inline void mask_evtchn(evtchn_port_t port)
{
return evtchn_ops->mask(port);
}
-static inline void unmask_evtchn(unsigned port)
+static inline void unmask_evtchn(evtchn_port_t port)
{
return evtchn_ops->unmask(port);
}
--
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