Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging
[qemu.git] / pc-bios / s390-ccw / s390-ccw.h
1 /*
2 * S390 CCW boot loader
3 *
4 * Copyright (c) 2013 Alexander Graf <agraf@suse.de>
5 *
6 * This work is licensed under the terms of the GNU GPL, version 2 or (at
7 * your option) any later version. See the COPYING file in the top-level
8 * directory.
9 */
10
11 #ifndef S390_CCW_H
12 #define S390_CCW_H
13
14 /* #define DEBUG */
15
16 typedef unsigned char u8;
17 typedef unsigned short u16;
18 typedef unsigned int u32;
19 typedef unsigned long long u64;
20 typedef unsigned long ulong;
21 typedef long size_t;
22 typedef int bool;
23 typedef unsigned char uint8_t;
24 typedef unsigned short uint16_t;
25 typedef unsigned int uint32_t;
26 typedef unsigned long long uint64_t;
27 typedef unsigned char __u8;
28 typedef unsigned short __u16;
29 typedef unsigned int __u32;
30 typedef unsigned long long __u64;
31
32 #define true 1
33 #define false 0
34 #define PAGE_SIZE 4096
35
36 #ifndef EIO
37 #define EIO 1
38 #endif
39 #ifndef EBUSY
40 #define EBUSY 2
41 #endif
42 #ifndef NULL
43 #define NULL 0
44 #endif
45
46 #include "cio.h"
47
48 /* start.s */
49 void disabled_wait(void);
50
51 /* main.c */
52 void virtio_panic(const char *string);
53
54 /* sclp-ascii.c */
55 void sclp_print(const char *string);
56 void sclp_setup(void);
57
58 /* virtio.c */
59 unsigned long virtio_load_direct(ulong rec_list1, ulong rec_list2,
60 ulong subchan_id, void *load_addr);
61 bool virtio_is_blk(struct subchannel_id schid);
62 void virtio_setup_block(struct subchannel_id schid);
63 int virtio_read(ulong sector, void *load_addr);
64 int enable_mss_facility(void);
65
66 /* bootmap.c */
67 int zipl_load(void);
68
69 static inline void *memset(void *s, int c, size_t n)
70 {
71 int i;
72 unsigned char *p = s;
73
74 for (i = 0; i < n; i++) {
75 p[i] = c;
76 }
77
78 return s;
79 }
80
81 static inline void fill_hex(char *out, unsigned char val)
82 {
83 const char hex[] = "0123456789abcdef";
84
85 out[0] = hex[(val >> 4) & 0xf];
86 out[1] = hex[val & 0xf];
87 }
88
89 static inline void print_int(const char *desc, u64 addr)
90 {
91 unsigned char *addr_c = (unsigned char*)&addr;
92 char out[] = ": 0xffffffffffffffff\n";
93 unsigned int i;
94
95 for (i = 0; i < sizeof(addr); i++) {
96 fill_hex(&out[4 + (i*2)], addr_c[i]);
97 }
98
99 sclp_print(desc);
100 sclp_print(out);
101 }
102
103 static inline void debug_print_int(const char *desc, u64 addr)
104 {
105 #ifdef DEBUG
106 print_int(desc, addr);
107 #endif
108 }
109
110 static inline void debug_print_addr(const char *desc, void *p)
111 {
112 #ifdef DEBUG
113 debug_print_int(desc, (unsigned int)(unsigned long)p);
114 #endif
115 }
116
117 /***********************************************
118 * Hypercall functions *
119 ***********************************************/
120
121 #define KVM_S390_VIRTIO_NOTIFY 0
122 #define KVM_S390_VIRTIO_RESET 1
123 #define KVM_S390_VIRTIO_SET_STATUS 2
124 #define KVM_S390_VIRTIO_CCW_NOTIFY 3
125
126 static inline void yield(void)
127 {
128 asm volatile ("diag 0,0,0x44"
129 : :
130 : "memory", "cc");
131 }
132
133 #define SECTOR_SIZE 512
134
135 #endif /* S390_CCW_H */