4 * Copyright (c) 2013 Alexander Graf <agraf@suse.de>
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
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;
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;
34 #define PAGE_SIZE 4096
48 typedef struct irb Irb;
49 typedef struct ccw1 Ccw1;
50 typedef struct cmd_orb CmdOrb;
51 typedef struct schib Schib;
52 typedef struct chsc_area_sda ChscAreaSda;
53 typedef struct senseid SenseId;
54 typedef struct subchannel_id SubChannelId;
57 void disabled_wait(void);
58 void consume_sclp_int(void);
61 void panic(const char *string);
62 void write_subsystem_identification(void);
63 extern char stack[PAGE_SIZE * 8] __attribute__((__aligned__(PAGE_SIZE)));
64 extern uint64_t boot_value;
67 void sclp_print(const char *string);
68 void sclp_setup(void);
71 unsigned long virtio_load_direct(ulong rec_list1, ulong rec_list2,
72 ulong subchan_id, void *load_addr);
73 bool virtio_is_supported(SubChannelId schid);
74 void virtio_setup_device(SubChannelId schid);
75 int virtio_read(ulong sector, void *load_addr);
76 int enable_mss_facility(void);
77 ulong get_second(void);
82 static inline void *memset(void *s, int c, size_t n)
87 for (i = 0; i < n; i++) {
94 static inline void fill_hex(char *out, unsigned char val)
96 const char hex[] = "0123456789abcdef";
98 out[0] = hex[(val >> 4) & 0xf];
99 out[1] = hex[val & 0xf];
102 static inline void fill_hex_val(char *out, void *ptr, unsigned size)
104 unsigned char *value = ptr;
107 for (i = 0; i < size; i++) {
108 fill_hex(&out[i*2], value[i]);
112 static inline void print_int(const char *desc, u64 addr)
114 char out[] = ": 0xffffffffffffffff\n";
116 fill_hex_val(&out[4], &addr, sizeof(addr));
122 static inline void debug_print_int(const char *desc, u64 addr)
125 print_int(desc, addr);
129 static inline void debug_print_addr(const char *desc, void *p)
132 debug_print_int(desc, (unsigned int)(unsigned long)p);
136 /***********************************************
137 * Hypercall functions *
138 ***********************************************/
140 #define KVM_S390_VIRTIO_NOTIFY 0
141 #define KVM_S390_VIRTIO_RESET 1
142 #define KVM_S390_VIRTIO_SET_STATUS 2
143 #define KVM_S390_VIRTIO_CCW_NOTIFY 3
145 static inline void yield(void)
147 asm volatile ("diag 0,0,0x44"
152 #define MAX_SECTOR_SIZE 4096
154 static inline void sleep(unsigned int seconds)
156 ulong target = get_second() + seconds;
158 while (get_second() < target) {
163 static inline void *memcpy(void *s1, const void *s2, size_t n)
166 const uint8_t *p2 = s2;
174 static inline void IPL_assert(bool term, const char *message)
179 panic(" !\n"); /* no return */
183 static inline void IPL_check(bool term, const char *message)
186 sclp_print("\n! WARNING: ");
192 #endif /* S390_CCW_H */