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radeonsi/gfx9: add a scissor bug workaround 

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
This commit is contained in:
Marek Olšák 2017-01-09 16:32:12 +01:00
parent b576df4017
commit 71eca0780a
1 changed files with 6 additions and 0 deletions
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6
src/gallium/drivers/radeonsi/si_state_draw.c
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@ -1169,6 +1169,12 @@ void si_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info *info)
if (!si_upload_vertex_buffer_descriptors(sctx))
return;
/* GFX9 scissor bug workaround. There is also a more efficient but
* more involved alternative workaround. */
if (sctx->b.chip_class == GFX9 &&
si_is_atom_dirty(sctx, &sctx->b.scissors.atom))
sctx->b.flags |= SI_CONTEXT_PS_PARTIAL_FLUSH;
/* Flush caches before the first state atom, which does L2 prefetches. */
if (sctx->b.flags)
si_emit_cache_flush(sctx);