perf/x86/intel/pt: Clean up the control flow in pt_pmu_hw_init()
[sfrench/cifs-2.6.git] / drivers / staging / unisys / common-spar / include / vmcallinterface.h
1 /* Copyright (C) 2010 - 2013 UNISYS CORPORATION
2  * All rights reserved.
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation; either version 2 of the License, or (at
7  * your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful, but
10  * WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
12  * NON INFRINGEMENT.  See the GNU General Public License for more
13  * details.
14  */
15
16 #ifndef __IOMONINTF_H__
17 #define __IOMONINTF_H__
18
19 /*
20 * This file contains all structures needed to support the VMCALLs for IO
21 * Virtualization.  The VMCALLs are provided by Monitor and used by IO code
22 * running on IO Partitions.
23 */
24
25 #ifdef __GNUC__
26 #include "iovmcall_gnuc.h"
27 #endif  /*  */
28 #include "diagchannel.h"
29
30 #ifdef VMCALL_IO_CONTROLVM_ADDR
31 #undef VMCALL_IO_CONTROLVM_ADDR
32 #endif  /*  */
33
34 /* define subsystem number for AppOS, used in uislib driver  */
35 #define MDS_APPOS 0x4000000000000000L   /* subsystem = 62 - AppOS */
36 enum vmcall_monitor_interface_method_tuple { /* VMCALL identification tuples  */
37             /* Note: when a new VMCALL is added:
38              * - the 1st 2 hex digits correspond to one of the
39              *   VMCALL_MONITOR_INTERFACE types and
40              * - the next 2 hex digits are the nth relative instance of within a
41              *   type
42              * E.G. for VMCALL_VIRTPART_RECYCLE_PART,
43              * - the 0x02 identifies it as a VMCALL_VIRTPART type and
44              * - the 0x01 identifies it as the 1st instance of a VMCALL_VIRTPART
45              *   type of VMCALL
46              */
47
48         VMCALL_IO_CONTROLVM_ADDR = 0x0501,      /* used by all Guests, not just
49                                                  * IO */
50         VMCALL_IO_DIAG_ADDR = 0x0508,
51         VMCALL_IO_VISORSERIAL_ADDR = 0x0509,
52         VMCALL_QUERY_GUEST_VIRTUAL_TIME_OFFSET = 0x0708, /* Allow caller to
53                                                           * query virtual time
54                                                           * offset */
55         VMCALL_CHANNEL_VERSION_MISMATCH = 0x0709,
56         VMCALL_POST_CODE_LOGEVENT = 0x070B,     /* LOGEVENT Post Code (RDX) with
57                                                  * specified subsystem mask (RCX
58                                                  * - monitor_subsystems.h) and
59                                                  * severity (RDX) */
60         VMCALL_GENERIC_SURRENDER_QUANTUM_FOREVER = 0x0802, /* Yield the
61                                                             * remainder & all
62                                                             * future quantums of
63                                                             * the caller */
64         VMCALL_MEASUREMENT_DO_NOTHING = 0x0901,
65         VMCALL_UPDATE_PHYSICAL_TIME = 0x0a02    /* Allow
66                                                  * ULTRA_SERVICE_CAPABILITY_TIME
67                                                  * capable guest to make
68                                                  * VMCALL */
69 };
70
71 #define VMCALL_SUCCESS 0
72 #define VMCALL_SUCCESSFUL(result)       (result == 0)
73
74 #ifdef __GNUC__
75 #define unisys_vmcall(tuple, reg_ebx, reg_ecx) \
76         __unisys_vmcall_gnuc(tuple, reg_ebx, reg_ecx)
77 #define unisys_extended_vmcall(tuple, reg_ebx, reg_ecx, reg_edx) \
78         __unisys_extended_vmcall_gnuc(tuple, reg_ebx, reg_ecx, reg_edx)
79 #define ISSUE_IO_VMCALL(method, param, result) \
80         (result = unisys_vmcall(method, (param) & 0xFFFFFFFF,   \
81                                 (param) >> 32))
82 #define ISSUE_IO_EXTENDED_VMCALL(method, param1, param2,        \
83                                  param3, result)                        \
84         (result = unisys_extended_vmcall(method, param1,        \
85                                          param2, param3))
86
87     /* The following uses VMCALL_POST_CODE_LOGEVENT interface but is currently
88      * not used much */
89 #define ISSUE_IO_VMCALL_POSTCODE_SEVERITY(postcode, severity)           \
90 do {                                                                    \
91         u32 _tempresult = VMCALL_SUCCESS;                               \
92         ISSUE_IO_EXTENDED_VMCALL(VMCALL_POST_CODE_LOGEVENT, severity,   \
93                                  MDS_APPOS, postcode, _tempresult);     \
94 } while (0)
95 #endif
96
97 /* Structures for IO VMCALLs */
98
99 /* ///////////// BEGIN PRAGMA PACK PUSH 1 ///////////////////////// */
100 /* ///////////// ONLY STRUCT TYPE SHOULD BE BELOW */
101 #pragma pack(push, 1)
102 struct phys_info {
103         u64 pi_pfn;
104         u16 pi_off;
105         u16 pi_len;
106 };
107
108 #pragma pack(pop)
109 /* ///////////// END PRAGMA PACK PUSH 1 /////////////////////////// */
110
111 /* ///////////// BEGIN PRAGMA PACK PUSH 1 ///////////////////////// */
112 /* ///////////// ONLY STRUCT TYPE SHOULD BE BELOW */
113 #pragma pack(push, 1)
114 /* Parameters to VMCALL_IO_CONTROLVM_ADDR interface */
115 struct vmcall_io_controlvm_addr_params {
116             /* The Guest-relative physical address of the ControlVm channel.
117             * This VMCall fills this in with the appropriate address. */
118         u64 address;    /* contents provided by this VMCALL (OUT) */
119             /* the size of the ControlVm channel in bytes This VMCall fills this
120             * in with the appropriate address. */
121         u32 channel_bytes;      /* contents provided by this VMCALL (OUT) */
122         u8 unused[4];           /* Unused Bytes in the 64-Bit Aligned Struct */
123 };
124
125 #pragma pack(pop)
126 /* ///////////// END PRAGMA PACK PUSH 1 /////////////////////////// */
127
128 /* ///////////// BEGIN PRAGMA PACK PUSH 1 ///////////////////////// */
129 /* ///////////// ONLY STRUCT TYPE SHOULD BE BELOW */
130 #pragma pack(push, 1)
131 /* Parameters to VMCALL_IO_DIAG_ADDR interface */
132 struct vmcall_io_diag_addr_params {
133             /* The Guest-relative physical address of the diagnostic channel.
134             * This VMCall fills this in with the appropriate address. */
135         u64 address;    /* contents provided by this VMCALL (OUT) */
136 };
137
138 #pragma pack(pop)
139 /* ///////////// END PRAGMA PACK PUSH 1 /////////////////////////// */
140
141 /* ///////////// BEGIN PRAGMA PACK PUSH 1 ///////////////////////// */
142 /* ///////////// ONLY STRUCT TYPE SHOULD BE BELOW */
143 #pragma pack(push, 1)
144 /* Parameters to VMCALL_IO_VISORSERIAL_ADDR interface */
145 struct vmcall_io_visorserial_addr_params {
146             /* The Guest-relative physical address of the serial console
147             * channel.  This VMCall fills this in with the appropriate
148             * address. */
149         u64 address;    /* contents provided by this VMCALL (OUT) */
150 };
151
152 #pragma pack(pop)
153 /* ///////////// END PRAGMA PACK PUSH 1 /////////////////////////// */
154
155 /* Parameters to VMCALL_CHANNEL_MISMATCH interface */
156 struct vmcall_channel_version_mismatch_params {
157         u8 chname[32];  /* Null terminated string giving name of channel
158                                  * (IN) */
159         u8 item_name[32];       /* Null terminated string giving name of
160                                  * mismatched item (IN) */
161         u32 line_no;            /* line# where invoked. (IN) */
162         u8 file_name[36];       /* source code where invoked - Null terminated
163                                  * string (IN) */
164 };
165
166 #endif /* __IOMONINTF_H__ */