1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
/******************************************************************************
* acpi.h
* acpi file for domain 0 kernel
*
* Copyright (c) 2011 Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* Copyright (c) 2011 Yu Ke <ke.yu@intel.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation; or, when distributed
* separately from the Linux kernel or incorporated into other
* software packages, subject to the following license:
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this source file (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy, modify,
* merge, publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#ifndef _XEN_ACPI_H
#define _XEN_ACPI_H
#include <linux/types.h>
typedef int (*get_gsi_from_sbdf_t)(u32 sbdf);
#ifdef CONFIG_XEN_DOM0
#include <asm/xen/hypervisor.h>
#include <xen/xen.h>
#include <linux/acpi.h>
int xen_acpi_notify_hypervisor_sleep(u8 sleep_state,
u32 pm1a_cnt, u32 pm1b_cnd);
int xen_acpi_notify_hypervisor_extended_sleep(u8 sleep_state,
u32 val_a, u32 val_b);
static inline int xen_acpi_suspend_lowlevel(void)
{
/*
* Xen will save and restore CPU context, so
* we can skip that and just go straight to
* the suspend.
*/
acpi_enter_sleep_state(ACPI_STATE_S3);
return 0;
}
static inline void xen_acpi_sleep_register(void)
{
if (xen_initial_domain()) {
acpi_os_set_prepare_sleep(
&xen_acpi_notify_hypervisor_sleep);
acpi_os_set_prepare_extended_sleep(
&xen_acpi_notify_hypervisor_extended_sleep);
acpi_suspend_lowlevel = xen_acpi_suspend_lowlevel;
}
}
int xen_pvh_setup_gsi(int gsi, int trigger, int polarity);
int xen_acpi_get_gsi_info(struct pci_dev *dev,
int *gsi_out,
int *trigger_out,
int *polarity_out);
void xen_acpi_register_get_gsi_func(get_gsi_from_sbdf_t func);
int xen_acpi_get_gsi_from_sbdf(u32 sbdf);
#else
static inline void xen_acpi_sleep_register(void)
{
}
static inline int xen_pvh_setup_gsi(int gsi, int trigger, int polarity)
{
return -1;
}
static inline int xen_acpi_get_gsi_info(struct pci_dev *dev,
int *gsi_out,
int *trigger_out,
int *polarity_out)
{
return -1;
}
static inline void xen_acpi_register_get_gsi_func(get_gsi_from_sbdf_t func)
{
}
static inline int xen_acpi_get_gsi_from_sbdf(u32 sbdf)
{
return -1;
}
#endif
#endif /* _XEN_ACPI_H */
|
