On 15.10.07 13:00:27, Barry Kasindorf wrote:
>
> oProfile Driver Module Patch for AMD Family10h Kernel 2.6.23
> This patch is for controlling the upper 32bits of the event ctrl msrs.
> This includes the upper 4 bits of the event select and the Guest Only
> and Host Only bits
> This patch is necessary to make Event Based Profiling work reliably on a
> Family10h processor
>
> ---
> op_model_athlon.c | 22 ++++++++++++++++------
> 1 file changed, 16 insertions(+), 6 deletions(-)
> ---
>
> Signed-off-by: Barry Kasindorf <[email protected]>
> Signed-off-by: Robert Richter <[email protected]>
>
> diff -Naur linux-2.6.23.orig/arch/i386/oprofile/op_model_athlon.c
> linux-2.6.23.pmc/arch/i386/oprofile/op_model_athlon.c
> --- linux-2.6.23.orig/arch/i386/oprofile/op_model_athlon.c 2007-10-09
> 16:31:38.000000000 -0400
> +++ linux-2.6.23.pmc/arch/i386/oprofile/op_model_athlon.c 2007-10-15
> 11:02:39.000000000 -0400
[]
> @@ -70,7 +74,8 @@
> if (unlikely(!CTRL_IS_RESERVED(msrs,i)))
> continue;
> CTRL_READ(low, high, msrs, i);
> - CTRL_CLEAR(low);
> + CTRL_CLEAR_LO(low);
> + CTRL_CLEAR_HI(low);
Should be probably this:
CTRL_CLEAR_HI(high);
> CTRL_WRITE(low, high, msrs, i);
> }
>
[]
--
Advanced Micro Devices, Inc.
Operating System Research Center
email: [email protected]
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