[PATCH] xfree86: correctly define barriers for FreeBSD amd64

[Maarten Maathuis]

Perhaps this should be expanded to cover all amd64 systems?

Maarten.

On Thu, Feb 26, 2009 at 8:17 AM, Benjamin Close
<Benjamin.Close at clearchain.com> wrote:
> Previously when compiling on freebsd amd64 we'd end up at xi86
> block (line 1315) which would define mem_barrier and write_mem_barrier
> to be NOP's. Instead they should be valid, as per the linux amd64 setup.
>
> This stops the hangs experienced by many when using the nv driver
> which would hang due to out of order dma requests as noticed in
> http://bugs.freedesktop.org/show_bug.cgi?id=3168
>
> Signed-off-by: Benjamin Close <Benjamin.Close at clearchain.com>
> ---
>  hw/xfree86/common/compiler.h |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/hw/xfree86/common/compiler.h b/hw/xfree86/common/compiler.h
> index 2601693..afb44ad 100644
> --- a/hw/xfree86/common/compiler.h
> +++ b/hw/xfree86/common/compiler.h
> @@ -461,7 +461,7 @@ extern _X_EXPORT unsigned int inb(unsigned long port);
>  extern _X_EXPORT unsigned int inw(unsigned long port);
>  extern _X_EXPORT unsigned int inl(unsigned long port);
>
> -#   elif defined(linux) && defined(__amd64__)
> +#   elif (defined(linux) || defined(__FreeBSD__)) && defined(__amd64__)
>
>  #    include <inttypes.h>
>
> --
> 1.6.0.2
>
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