[Mesa-dev] [PATCH 09/13] r600g: fix buffer copying on R600-R700

[Alex Deucher]

On Sun, Apr 20, 2014 at 9:59 PM, Marek Olšák <maraeo at gmail.com> wrote:
> From: Marek Olšák <marek.olsak at amd.com>
>
> This fixes broken rendering in DOTA 2.
>
> Cc: 10.0 10.1 mesa-stable at lists.freedesktop.org

Reviewed-by: Alex Deucher <alexander.deucher at amd.com>

> ---
>  src/gallium/drivers/r600/r600_blit.c | 6 ++++++
>  1 file changed, 6 insertions(+)
>
> diff --git a/src/gallium/drivers/r600/r600_blit.c b/src/gallium/drivers/r600/r600_blit.c
> index 98c07b5..1a2a911 100644
> --- a/src/gallium/drivers/r600/r600_blit.c
> +++ b/src/gallium/drivers/r600/r600_blit.c
> @@ -500,6 +500,12 @@ static void r600_copy_buffer(struct pipe_context *ctx, struct pipe_resource *dst
>         } else {
>                 util_resource_copy_region(ctx, dst, 0, dstx, 0, 0, src, 0, src_box);
>         }
> +
> +       /* The index buffer (VGT) doesn't seem to see the result of the copying.
> +        * Can we somehow flush the index buffer cache? Starting a new IB seems
> +        * to do the trick. */
> +       if (rctx->b.chip_class <= R700)
> +               rctx->b.rings.gfx.flush(ctx, RADEON_FLUSH_ASYNC, NULL);
>  }
>
>  /**
> --
> 1.8.3.2
>
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