diff options
author | Bjoern B. Brandenburg <bbb@cs.unc.edu> | 2010-11-06 16:36:31 -0400 |
---|---|---|
committer | Bjoern B. Brandenburg <bbb@cs.unc.edu> | 2010-11-09 16:35:32 -0500 |
commit | f8585fe1fc6f0830f900dad7c8ccc40e17f79644 (patch) | |
tree | a89c87d7f2b2002e4ac77ca34b63209ed98d66a1 | |
parent | 42e747e4fe5648967c1ead5ae327b5fbbe66f2e5 (diff) |
refactor: use architecture-specific includes for cycles.h
-rw-r--r-- | arch/sparc64/include/asm/cycles.h | 16 | ||||
-rw-r--r-- | arch/x86/include/asm/cycles.h | 30 | ||||
-rw-r--r-- | bin/cycles.c | 2 | ||||
-rw-r--r-- | bin/null_call.c | 1 | ||||
-rw-r--r-- | include/cycles.h | 63 | ||||
-rw-r--r-- | include/litmus.h | 2 |
6 files changed, 48 insertions, 66 deletions
diff --git a/arch/sparc64/include/asm/cycles.h b/arch/sparc64/include/asm/cycles.h new file mode 100644 index 0000000..ce0e8ce --- /dev/null +++ b/arch/sparc64/include/asm/cycles.h | |||
@@ -0,0 +1,16 @@ | |||
1 | #ifndef ASM_CYCLES_H | ||
2 | #define ASM_CYCLES_H | ||
3 | |||
4 | #define NPT_BIT 63 | ||
5 | |||
6 | typedef unsigned long cycles_t; | ||
7 | |||
8 | #define CYCLES_FMT "lu" | ||
9 | |||
10 | static inline cycles_t get_cycles(void) { | ||
11 | cycles_t cycles = 0; | ||
12 | __asm__ __volatile__("rd %%asr24, %0" : "=r" (cycles)); | ||
13 | return cycles & ~(1UL << NPT_BIT); | ||
14 | } | ||
15 | |||
16 | #endif | ||
diff --git a/arch/x86/include/asm/cycles.h b/arch/x86/include/asm/cycles.h new file mode 100644 index 0000000..00a7593 --- /dev/null +++ b/arch/x86/include/asm/cycles.h | |||
@@ -0,0 +1,30 @@ | |||
1 | #ifndef ASM_CYCLES_H | ||
2 | #define ASM_CYCLES_H | ||
3 | |||
4 | #define rdtscll(val) do { \ | ||
5 | unsigned int __a,__d; \ | ||
6 | __asm__ __volatile__("rdtsc" : "=a" (__a), "=d" (__d)); \ | ||
7 | (val) = ((unsigned long long)__a) | (((unsigned long long)__d)<<32); \ | ||
8 | } while(0) | ||
9 | |||
10 | static __inline__ unsigned long long native_read_tsc(void) | ||
11 | { | ||
12 | unsigned long long val; | ||
13 | |||
14 | __asm__ __volatile__("mfence":::"memory"); | ||
15 | rdtscll(val); | ||
16 | __asm__ __volatile__("mfence":::"memory"); | ||
17 | |||
18 | return val; | ||
19 | } | ||
20 | |||
21 | #define CYCLES_FMT "llu" | ||
22 | |||
23 | typedef unsigned long long cycles_t; | ||
24 | |||
25 | static inline cycles_t get_cycles(void) | ||
26 | { | ||
27 | return native_read_tsc(); | ||
28 | } | ||
29 | |||
30 | #endif | ||
diff --git a/bin/cycles.c b/bin/cycles.c index a6b9308..babd073 100644 --- a/bin/cycles.c +++ b/bin/cycles.c | |||
@@ -2,7 +2,7 @@ | |||
2 | #include <stdlib.h> | 2 | #include <stdlib.h> |
3 | #include <unistd.h> | 3 | #include <unistd.h> |
4 | 4 | ||
5 | #include "cycles.h" | 5 | #include "asm/cycles.h" |
6 | 6 | ||
7 | int main(int argc, char** argv) | 7 | int main(int argc, char** argv) |
8 | { | 8 | { |
diff --git a/bin/null_call.c b/bin/null_call.c index 94ba866..61c4629 100644 --- a/bin/null_call.c +++ b/bin/null_call.c | |||
@@ -5,7 +5,6 @@ | |||
5 | #include <math.h> | 5 | #include <math.h> |
6 | 6 | ||
7 | #include "litmus.h" | 7 | #include "litmus.h" |
8 | #include "cycles.h" | ||
9 | 8 | ||
10 | static void time_null_call(void) | 9 | static void time_null_call(void) |
11 | { | 10 | { |
diff --git a/include/cycles.h b/include/cycles.h deleted file mode 100644 index e9b0e11..0000000 --- a/include/cycles.h +++ /dev/null | |||
@@ -1,63 +0,0 @@ | |||
1 | #ifndef CYCLES_H | ||
2 | #define CYCLES_H | ||
3 | |||
4 | #ifdef __x86_64__ | ||
5 | |||
6 | #define rdtscll(val) do { \ | ||
7 | unsigned int __a,__d; \ | ||
8 | __asm__ __volatile__("rdtsc" : "=a" (__a), "=d" (__d)); \ | ||
9 | (val) = ((unsigned long)__a) | (((unsigned long)__d)<<32); \ | ||
10 | } while(0) | ||
11 | |||
12 | static __inline__ unsigned long long native_read_tsc(void) | ||
13 | { | ||
14 | unsigned long long val; | ||
15 | |||
16 | __asm__ __volatile__("mfence":::"memory"); | ||
17 | rdtscll(val); | ||
18 | __asm__ __volatile__("mfence":::"memory"); | ||
19 | |||
20 | return val; | ||
21 | } | ||
22 | |||
23 | |||
24 | #define CYCLES_FMT "llu" | ||
25 | |||
26 | typedef unsigned long long cycles_t; | ||
27 | |||
28 | static inline cycles_t get_cycles(void) | ||
29 | { | ||
30 | return native_read_tsc(); | ||
31 | } | ||
32 | #elif defined __i386__ | ||
33 | static inline unsigned long long native_read_tsc(void) { | ||
34 | unsigned long long val; | ||
35 | __asm__ __volatile__("rdtsc" : "=A" (val)); | ||
36 | return val; | ||
37 | } | ||
38 | |||
39 | typedef unsigned long long cycles_t; | ||
40 | |||
41 | #define CYCLES_FMT "llu" | ||
42 | |||
43 | static inline cycles_t get_cycles(void) | ||
44 | { | ||
45 | return native_read_tsc(); | ||
46 | } | ||
47 | #elif defined __sparc__ | ||
48 | |||
49 | #define NPT_BIT 63 | ||
50 | |||
51 | typedef unsigned long cycles_t; | ||
52 | |||
53 | #define CYCLES_FMT "lu" | ||
54 | |||
55 | static inline cycles_t get_cycles(void) { | ||
56 | unsigned long cycles = 0; | ||
57 | __asm__ __volatile__("rd %%asr24, %0" : "=r" (cycles)); | ||
58 | return cycles & ~(1UL << NPT_BIT); | ||
59 | } | ||
60 | |||
61 | #endif | ||
62 | |||
63 | #endif | ||
diff --git a/include/litmus.h b/include/litmus.h index c4c4129..2a26a4a 100644 --- a/include/litmus.h +++ b/include/litmus.h | |||
@@ -13,7 +13,7 @@ extern "C" { | |||
13 | */ | 13 | */ |
14 | #include "litmus/rt_param.h" | 14 | #include "litmus/rt_param.h" |
15 | 15 | ||
16 | #include "cycles.h" /* for null_call() */ | 16 | #include "asm/cycles.h" /* for null_call() */ |
17 | 17 | ||
18 | typedef int pid_t; /* PID of a task */ | 18 | typedef int pid_t; /* PID of a task */ |
19 | 19 | ||