diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-11 13:33:36 -0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-11 13:33:36 -0400 |
commit | c29f5ec022451546be1e0b24c330a0368e63e4a7 (patch) | |
tree | af3c2fc0ba3236fd4c1c2d1a4303fb5a3dc396ab /arch/x86/lib/msr-on-cpu.c | |
parent | d3d07d941fd80c173b6d690ded00ee5fb8302e06 (diff) | |
parent | c476c23b45a41eb4e3ea63af786cc4d74762fe11 (diff) |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp: (26 commits)
amd64_edac: add MAINTAINERS entry
EDAC: do not enable modules by default
amd64_edac: do not enable module by default
amd64_edac: add module registration routines
amd64_edac: add ECC reporting initializers
amd64_edac: add EDAC core-related initializers
amd64_edac: add error decoding logic
amd64_edac: add ECC chipkill syndrome mapping table
amd64_edac: add per-family descriptors
amd64_edac: add F10h-and-later methods-p3
amd64_edac: add F10h-and-later methods-p2
amd64_edac: add F10h-and-later methods-p1
amd64_edac: add k8-specific methods
amd64_edac: assign DRAM chip select base and mask in a family-specific way
amd64_edac: add helper to dump relevant registers
amd64_edac: add DRAM address type conversion facilities
amd64_edac: add functionality to compute the DRAM hole
amd64_edac: add sys addr to memory controller mapping helpers
amd64_edac: add memory scrubber interface
amd64_edac: add MCA error types
...
Diffstat (limited to 'arch/x86/lib/msr-on-cpu.c')
-rw-r--r-- | arch/x86/lib/msr-on-cpu.c | 97 |
1 files changed, 0 insertions, 97 deletions
diff --git a/arch/x86/lib/msr-on-cpu.c b/arch/x86/lib/msr-on-cpu.c deleted file mode 100644 index 321cf720dbb6..000000000000 --- a/arch/x86/lib/msr-on-cpu.c +++ /dev/null | |||
@@ -1,97 +0,0 @@ | |||
1 | #include <linux/module.h> | ||
2 | #include <linux/preempt.h> | ||
3 | #include <linux/smp.h> | ||
4 | #include <asm/msr.h> | ||
5 | |||
6 | struct msr_info { | ||
7 | u32 msr_no; | ||
8 | u32 l, h; | ||
9 | int err; | ||
10 | }; | ||
11 | |||
12 | static void __rdmsr_on_cpu(void *info) | ||
13 | { | ||
14 | struct msr_info *rv = info; | ||
15 | |||
16 | rdmsr(rv->msr_no, rv->l, rv->h); | ||
17 | } | ||
18 | |||
19 | static void __wrmsr_on_cpu(void *info) | ||
20 | { | ||
21 | struct msr_info *rv = info; | ||
22 | |||
23 | wrmsr(rv->msr_no, rv->l, rv->h); | ||
24 | } | ||
25 | |||
26 | int rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h) | ||
27 | { | ||
28 | int err; | ||
29 | struct msr_info rv; | ||
30 | |||
31 | rv.msr_no = msr_no; | ||
32 | err = smp_call_function_single(cpu, __rdmsr_on_cpu, &rv, 1); | ||
33 | *l = rv.l; | ||
34 | *h = rv.h; | ||
35 | |||
36 | return err; | ||
37 | } | ||
38 | |||
39 | int wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h) | ||
40 | { | ||
41 | int err; | ||
42 | struct msr_info rv; | ||
43 | |||
44 | rv.msr_no = msr_no; | ||
45 | rv.l = l; | ||
46 | rv.h = h; | ||
47 | err = smp_call_function_single(cpu, __wrmsr_on_cpu, &rv, 1); | ||
48 | |||
49 | return err; | ||
50 | } | ||
51 | |||
52 | /* These "safe" variants are slower and should be used when the target MSR | ||
53 | may not actually exist. */ | ||
54 | static void __rdmsr_safe_on_cpu(void *info) | ||
55 | { | ||
56 | struct msr_info *rv = info; | ||
57 | |||
58 | rv->err = rdmsr_safe(rv->msr_no, &rv->l, &rv->h); | ||
59 | } | ||
60 | |||
61 | static void __wrmsr_safe_on_cpu(void *info) | ||
62 | { | ||
63 | struct msr_info *rv = info; | ||
64 | |||
65 | rv->err = wrmsr_safe(rv->msr_no, rv->l, rv->h); | ||
66 | } | ||
67 | |||
68 | int rdmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h) | ||
69 | { | ||
70 | int err; | ||
71 | struct msr_info rv; | ||
72 | |||
73 | rv.msr_no = msr_no; | ||
74 | err = smp_call_function_single(cpu, __rdmsr_safe_on_cpu, &rv, 1); | ||
75 | *l = rv.l; | ||
76 | *h = rv.h; | ||
77 | |||
78 | return err ? err : rv.err; | ||
79 | } | ||
80 | |||
81 | int wrmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h) | ||
82 | { | ||
83 | int err; | ||
84 | struct msr_info rv; | ||
85 | |||
86 | rv.msr_no = msr_no; | ||
87 | rv.l = l; | ||
88 | rv.h = h; | ||
89 | err = smp_call_function_single(cpu, __wrmsr_safe_on_cpu, &rv, 1); | ||
90 | |||
91 | return err ? err : rv.err; | ||
92 | } | ||
93 | |||
94 | EXPORT_SYMBOL(rdmsr_on_cpu); | ||
95 | EXPORT_SYMBOL(wrmsr_on_cpu); | ||
96 | EXPORT_SYMBOL(rdmsr_safe_on_cpu); | ||
97 | EXPORT_SYMBOL(wrmsr_safe_on_cpu); | ||