Comment # 3
on bug 102955
from Marek Olšák
Workaround:
diff --git a/src/gallium/drivers/radeonsi/si_blit.c
b/src/gallium/drivers/radeonsi/si_blit.c
index 67972a2..dc71742 100644
--- a/src/gallium/drivers/radeonsi/si_blit.c
+++ b/src/gallium/drivers/radeonsi/si_blit.c
@@ -903,6 +903,14 @@ static void si_clear(struct pipe_context *ctx, unsigned
buffers,
sctx->db_stencil_clear = true;
si_mark_atom_dirty(sctx, &sctx->db_render_state);
}
+
+ /* TODO: Find out what's wrong here. Fast depth clear with
+ * a dirty DB cache causes corruption in ARK: Survival Evolved.
+ * https://bugs.freedesktop.org/show_bug.cgi?id=102955
+ *
+ * This hack massively decreases back-to-back ClearDepth
performance.
+ */
+ sctx->b.flags |= SI_CONTEXT_FLUSH_AND_INV_DB;
}
si_blitter_begin(ctx, SI_CLEAR);
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