In compiler.h, is defined mem_barrier() which is used if I understand
correctly when accessing the memory mapped IO, to force the CPU to
ensure previous writes/reads are commited to the bus before the
following ones (gcc being independantly informed to keep the source code
reads/writes ordering by
On Thu, Feb 4, 2010 at 2:57 PM, ri...@happyleptic.org wrote:
In compiler.h, is defined mem_barrier() which is used if I understand
correctly when accessing the memory mapped IO, to force the CPU to
ensure previous writes/reads are commited to the bus before the
following ones (gcc being
You must be looking at old source code. I changed this code in commit
52aa0495218d to use the sync instruction you mention.
Arg, I'm working on xserver 1.6.5 and forget to check on git.
Sorry for the noise.
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