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radeonsi: do VGT_FLUSH when switching NGG -> legacy on Sienna Cichlid 

Other chips don't need this.

Fixes: 9538b9a68e - radeonsi: add support for Sienna Cichlid

Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7542>
This commit is contained in:
Marek Olšák 2020-11-09 17:54:44 -05:00 committed by Marge Bot
parent 74ea26f613
commit c4ebdf9ee7
1 changed files with 1 additions and 1 deletions
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2
src/gallium/drivers/radeonsi/si_state_shaders.c
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@ -3032,7 +3032,7 @@ bool si_update_ngg(struct si_context *sctx)
* VGT_FLUSH is also emitted at the beginning of IBs when legacy GS ring
* pointers are set.
*/
if (sctx->chip_class == GFX10 && !new_ngg)
if ((sctx->chip_class == GFX10 || sctx->family == CHIP_SIENNA_CICHLID) && !new_ngg)
sctx->flags |= SI_CONTEXT_VGT_FLUSH;
sctx->ngg = new_ngg;