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53 | ::: "eax", "ebx", "ecx", "edx", "memory" |
53 | ::: "eax", "ebx", "ecx", "edx", "memory" |
54 | ); |
54 | ); |
55 | } |
55 | } |
56 | 56 | ||
57 | #ifdef CONFIG_FENCES_P4 |
57 | #ifdef CONFIG_FENCES_P4 |
58 | # define memory_barrier() __asm__ volatile ("mfence\n" ::: "memory") |
58 | # define memory_barrier() __asm__ volatile ("mfence\n" ::: "memory") |
59 | # define read_barrier() __asm__ volatile ("lfence\n" ::: "memory") |
59 | # define read_barrier() __asm__ volatile ("lfence\n" ::: "memory") |
- | 60 | # ifdef CONFIG_WEAK_MEMORY |
|
60 | # define write_barrier() __asm__ volatile ("sfence\n" ::: "memory") |
61 | # define write_barrier() __asm__ volatile ("sfence\n" ::: "memory") |
- | 62 | # else |
|
- | 63 | # define write_barrier() |
|
- | 64 | # endif |
|
61 | #elif CONFIG_FENCES_P3 |
65 | #elif CONFIG_FENCES_P3 |
62 | # define memory_barrier() cpuid_serialization() |
66 | # define memory_barrier() cpuid_serialization() |
63 | # define read_barrier() cpuid_serialization() |
67 | # define read_barrier() cpuid_serialization() |
- | 68 | # ifdef CONFIG_WEAK_MEMORY |
|
64 | # define write_barrier() __asm__ volatile ("sfence\n" ::: "memory") |
69 | # define write_barrier() __asm__ volatile ("sfence\n" ::: "memory") |
- | 70 | # else |
|
- | 71 | # define write_barrier() |
|
- | 72 | # endif |
|
65 | #else |
73 | #else |
66 | # define memory_barrier() cpuid_serialization() |
74 | # define memory_barrier() cpuid_serialization() |
67 | # define read_barrier() cpuid_serialization() |
75 | # define read_barrier() cpuid_serialization() |
- | 76 | # ifdef CONFIG_WEAK_MEMORY |
|
68 | # define write_barrier() cpuid_serialization() |
77 | # define write_barrier() cpuid_serialization() |
- | 78 | # else |
|
- | 79 | # define write_barrier() |
|
- | 80 | # endif |
|
69 | #endif |
81 | #endif |
70 | 82 | ||
71 | #endif |
83 | #endif |