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sna/gen7: Eliminate the pipeline stall after a non-pipelined operation 

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2012-06-21 10:31:24 +01:00
parent 3ef05a8d08
commit 4f2dde1fa3
1 changed files with 4 additions and 4 deletions
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8
src/sna/gen7_render.c
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@ -955,12 +955,12 @@ gen7_emit_vertex_elements(struct sna *sna,
}
inline static void
gen7_emit_pipe_invalidate(struct sna *sna)
gen7_emit_pipe_invalidate(struct sna *sna, bool stall)
{
OUT_BATCH(GEN7_PIPE_CONTROL | (4 - 2));
OUT_BATCH(GEN7_PIPE_CONTROL_WC_FLUSH |
GEN7_PIPE_CONTROL_TC_FLUSH |
GEN7_PIPE_CONTROL_CS_STALL);
(stall ? GEN7_PIPE_CONTROL_CS_STALL : 0));
OUT_BATCH(0);
OUT_BATCH(0);
}
@ -1020,7 +1020,7 @@ gen7_emit_state(struct sna *sna,
need_stall &= gen7_emit_drawing_rectangle(sna, op);
if (kgem_bo_is_dirty(op->src.bo) || kgem_bo_is_dirty(op->mask.bo)) {
gen7_emit_pipe_invalidate(sna);
gen7_emit_pipe_invalidate(sna, need_stall);
kgem_clear_dirty(&sna->kgem);
kgem_bo_mark_dirty(op->dst.bo);
need_stall = false;
@ -1042,7 +1042,7 @@ static void gen7_magic_ca_pass(struct sna *sna,
DBG(("%s: CA fixup (%d -> %d)\n", __FUNCTION__,
sna->render.vertex_start, sna->render.vertex_index));
gen7_emit_pipe_invalidate(sna);
gen7_emit_pipe_invalidate(sna, true);
gen7_emit_cc(sna, gen7_get_blend(PictOpAdd, TRUE, op->dst.format));
gen7_emit_wm(sna,