Root/
1 | /* |
2 | * Implementation of s390 diagnose codes |
3 | * |
4 | * Copyright IBM Corp. 2007 |
5 | * Author(s): Michael Holzheu <holzheu@de.ibm.com> |
6 | */ |
7 | |
8 | #include <linux/module.h> |
9 | #include <asm/diag.h> |
10 | |
11 | /* |
12 | * Diagnose 10: Release pages |
13 | */ |
14 | void diag10(unsigned long addr) |
15 | { |
16 | if (addr >= 0x7ff00000) |
17 | return; |
18 | asm volatile( |
19 | #ifdef CONFIG_64BIT |
20 | " sam31\n" |
21 | " diag %0,%0,0x10\n" |
22 | "0: sam64\n" |
23 | #else |
24 | " diag %0,%0,0x10\n" |
25 | "0:\n" |
26 | #endif |
27 | EX_TABLE(0b, 0b) |
28 | : : "a" (addr)); |
29 | } |
30 | EXPORT_SYMBOL(diag10); |
31 | |
32 | /* |
33 | * Diagnose 14: Input spool file manipulation |
34 | */ |
35 | int diag14(unsigned long rx, unsigned long ry1, unsigned long subcode) |
36 | { |
37 | register unsigned long _ry1 asm("2") = ry1; |
38 | register unsigned long _ry2 asm("3") = subcode; |
39 | int rc = 0; |
40 | |
41 | asm volatile( |
42 | #ifdef CONFIG_64BIT |
43 | " sam31\n" |
44 | " diag %2,2,0x14\n" |
45 | " sam64\n" |
46 | #else |
47 | " diag %2,2,0x14\n" |
48 | #endif |
49 | " ipm %0\n" |
50 | " srl %0,28\n" |
51 | : "=d" (rc), "+d" (_ry2) |
52 | : "d" (rx), "d" (_ry1) |
53 | : "cc"); |
54 | |
55 | return rc; |
56 | } |
57 | EXPORT_SYMBOL(diag14); |
58 | |
59 | /* |
60 | * Diagnose 210: Get information about a virtual device |
61 | */ |
62 | int diag210(struct diag210 *addr) |
63 | { |
64 | /* |
65 | * diag 210 needs its data below the 2GB border, so we |
66 | * use a static data area to be sure |
67 | */ |
68 | static struct diag210 diag210_tmp; |
69 | static DEFINE_SPINLOCK(diag210_lock); |
70 | unsigned long flags; |
71 | int ccode; |
72 | |
73 | spin_lock_irqsave(&diag210_lock, flags); |
74 | diag210_tmp = *addr; |
75 | |
76 | #ifdef CONFIG_64BIT |
77 | asm volatile( |
78 | " lhi %0,-1\n" |
79 | " sam31\n" |
80 | " diag %1,0,0x210\n" |
81 | "0: ipm %0\n" |
82 | " srl %0,28\n" |
83 | "1: sam64\n" |
84 | EX_TABLE(0b, 1b) |
85 | : "=&d" (ccode) : "a" (&diag210_tmp) : "cc", "memory"); |
86 | #else |
87 | asm volatile( |
88 | " lhi %0,-1\n" |
89 | " diag %1,0,0x210\n" |
90 | "0: ipm %0\n" |
91 | " srl %0,28\n" |
92 | "1:\n" |
93 | EX_TABLE(0b, 1b) |
94 | : "=&d" (ccode) : "a" (&diag210_tmp) : "cc", "memory"); |
95 | #endif |
96 | |
97 | *addr = diag210_tmp; |
98 | spin_unlock_irqrestore(&diag210_lock, flags); |
99 | |
100 | return ccode; |
101 | } |
102 | EXPORT_SYMBOL(diag210); |
103 |
Branches:
ben-wpan
ben-wpan-stefan
javiroman/ks7010
jz-2.6.34
jz-2.6.34-rc5
jz-2.6.34-rc6
jz-2.6.34-rc7
jz-2.6.35
jz-2.6.36
jz-2.6.37
jz-2.6.38
jz-2.6.39
jz-3.0
jz-3.1
jz-3.11
jz-3.12
jz-3.13
jz-3.15
jz-3.16
jz-3.18-dt
jz-3.2
jz-3.3
jz-3.4
jz-3.5
jz-3.6
jz-3.6-rc2-pwm
jz-3.9
jz-3.9-clk
jz-3.9-rc8
jz47xx
jz47xx-2.6.38
master
Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9