[Libva] [Libva-intel-driver][PATCH] vdenc: Always use the 1st VCS ring

[Xiang, Haihao]

Sorry, the bug URL is wrong, I will update it.


> VDEnc/HuC only works with the 1st VCS ring, however SKL GT3+ has 2
> VCS rings.
> To avoid executing the corresponding batch buffer from the 2nd VCS
> ring in i915, we
> have to specify the 1st ring in the driver.
> 
> SKL GT1/GT2 has only one VCS ring, so specifying the 1st ring in the
> driver has no
> any impact to GT1/GT2
> 
> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98033
> Signed-off-by: Xiang, Haihao <haihao.xiang at intel.com>
> ---
>  src/gen9_vdenc.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/src/gen9_vdenc.c b/src/gen9_vdenc.c
> index 46da334..2bc15b7 100644
> --- a/src/gen9_vdenc.c
> +++ b/src/gen9_vdenc.c
> @@ -3567,7 +3567,8 @@ gen9_vdenc_avc_encode_picture(VADriverContextP
> ctx,
>          vdenc_context->is_first_pass = (vdenc_context->current_pass
> == 0);
>          vdenc_context->is_last_pass = (vdenc_context->current_pass
> == (vdenc_context->num_passes - 1));
>  
> -        intel_batchbuffer_start_atomic_bcs(batch, 0x1000);
> +        intel_batchbuffer_start_atomic_bcs_override(batch, 0x1000,
> BSD_RING0);
> +
>          intel_batchbuffer_emit_mi_flush(batch);
>  
>          if (vdenc_context->brc_enabled) {