Ignore:
Timestamp:
2013-12-29T14:32:55Z (10 years ago)
Author:
Martin Decky <martin@…>
Branches:
lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
Children:
4c14b88, 6fa9a99d, 9be30cdf, aacdb8e
Parents:
2a13328
Message:

cherrypick important fixes and updates from lp:~jceel/helenos/leon3

File:
1 edited

Legend:

Unmodified
Added
Removed

  • kernel/arch/sparc32/include/arch/barrier.h

    r2a13328 r208b5f5  
    3636#define KERN_sparc32_BARRIER_H_
    3737
    38 // FIXME TODO
     38/*
     39 * Provisions are made to prevent compiler from reordering instructions itself.
     40 */
    3941
    40 #define CS_ENTER_BARRIER()
    41 #define CS_LEAVE_BARRIER()
     42#define CS_ENTER_BARRIER() \
     43        asm volatile ( \
     44                "stbar\n" \
     45                ::: "memory" \
     46        )
    4247
    43 #define memory_barrier()
    44 #define read_barrier()
    45 #define write_barrier()
     48#define CS_LEAVE_BARRIER() \
     49        asm volatile ( \
     50                "stbar\n" \
     51                ::: "memory" \
     52        )
     53
     54#define memory_barrier() \
     55        asm volatile ( \
     56                "stbar\n" \
     57                ::: "memory" \
     58        )
     59
     60#define read_barrier() \
     61        asm volatile ( \
     62                "stbar\n" \
     63                ::: "memory" \
     64        )
     65
     66#define write_barrier() \
     67        asm volatile ( \
     68                "stbar\n" \
     69                ::: "memory" \
     70        )
    4671
    4772#define smc_coherence(addr)
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