[Mesa-dev] [PATCH 16/16] nvc0: add a note about MP counters on GF100/GF110

Ilia Mirkin imirkin at alum.mit.edu
Fri Oct 16 10:50:02 PDT 2015


Series is Reviewed-by: Ilia Mirkin <imirkin at alum.mit.edu>

I had a couple of very minor comments that you can feel free to accept
or ignore.

On Fri, Oct 16, 2015 at 1:22 PM, Samuel Pitoiset
<samuel.pitoiset at gmail.com> wrote:
> MP counters on GF100/GF110 (compute capability 2.0) are buggy
> because there is a context-switch problem that we need to fix.
> Results might be wrong sometimes, be careful!
>
> Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
> ---
>  src/gallium/drivers/nouveau/nvc0/nvc0_query_hw_sm.c | 5 +++++
>  1 file changed, 5 insertions(+)
>
> diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_query_hw_sm.c b/src/gallium/drivers/nouveau/nvc0/nvc0_query_hw_sm.c
> index c4b40a6..c5ce3e3 100644
> --- a/src/gallium/drivers/nouveau/nvc0/nvc0_query_hw_sm.c
> +++ b/src/gallium/drivers/nouveau/nvc0/nvc0_query_hw_sm.c
> @@ -286,6 +286,11 @@ static const struct nvc0_hw_sm_query_cfg nve4_hw_sm_queries[] =
>  #undef _M2B
>
>  /* === PERFORMANCE MONITORING COUNTERS for NVC0:NVE4 === */
> +/* NOTES:
> + * - MP counters on GF100/GF110 (compute capability 2.0) are buggy
> + *   because there is a context-switch problem that we need to fix.
> + *   Results might be wrong sometimes, be careful!
> + */
>  static const char *nvc0_hw_sm_query_names[] =
>  {
>     /* MP counters */
> --
> 2.6.1
>
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