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• This comparison shows the changes necessary to convert path

  → /trunk/kernel/arch/ia32/include/barrier.h @ 2081

  → /trunk/kernel/arch/ia32/include/barrier.h @ 2082

  ↔ Reverse comparison

• Compare Path:	Rev

  With Path:	Rev

Ignore whitespace Rev 2081 → Rev 2082

/trunk/kernel/arch/ia32/include/barrier.h
46,12 → 46,12
* Provisions are made to prevent compiler from reordering instructions itself.
*/
#define CS_ENTER_BARRIER() __asm__ volatile ("" ::: "memory")
#define CS_LEAVE_BARRIER() __asm__ volatile ("" ::: "memory")
#define CS_ENTER_BARRIER() asm volatile ("" ::: "memory")
#define CS_LEAVE_BARRIER() asm volatile ("" ::: "memory")
static inline void cpuid_serialization(void)
{
__asm__ volatile (
asm volatile (
"xorl %%eax, %%eax\n"
"cpuid\n"
::: "eax", "ebx", "ecx", "edx", "memory"
59,20 → 59,20
}
#ifdef CONFIG_FENCES_P4
# define memory_barrier() __asm__ volatile ("mfence\n" ::: "memory")
# define read_barrier() __asm__ volatile ("lfence\n" ::: "memory")
# define memory_barrier() asm volatile ("mfence\n" ::: "memory")
# define read_barrier() asm volatile ("lfence\n" ::: "memory")
# ifdef CONFIG_WEAK_MEMORY
# define write_barrier() __asm__ volatile ("sfence\n" ::: "memory")
# define write_barrier() asm volatile ("sfence\n" ::: "memory")
# else
# define write_barrier() __asm__ volatile( "" ::: "memory");
# define write_barrier() asm volatile( "" ::: "memory");
# endif
#elif CONFIG_FENCES_P3
# define memory_barrier() cpuid_serialization()
# define read_barrier() cpuid_serialization()
# ifdef CONFIG_WEAK_MEMORY
# define write_barrier() __asm__ volatile ("sfence\n" ::: "memory")
# define write_barrier() asm volatile ("sfence\n" ::: "memory")
# else
# define write_barrier() __asm__ volatile( "" ::: "memory");
# define write_barrier() asm volatile( "" ::: "memory");
# endif
#else
# define memory_barrier() cpuid_serialization()
80,7 → 80,7
# ifdef CONFIG_WEAK_MEMORY
# define write_barrier() cpuid_serialization()
# else
# define write_barrier() __asm__ volatile( "" ::: "memory");
# define write_barrier() asm volatile( "" ::: "memory");
# endif
#endif