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sna/gen4: Check for sufficient batch space before emitting pipelined pointers 

For the broken shader workaround, we need to reset the pipeline state
before every blt as the state is changed by the magic CA pass. So we
need to check that we actually have sufficient space to emit the
pipelined pointers before doing so.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2011-06-20 15:22:57 +01:00
parent 84bd6e5119
commit 88d840b53d
1 changed files with 7 additions and 3 deletions
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10
src/sna/gen4_render.c
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@ -1453,10 +1453,14 @@ gen4_render_composite_blt(struct sna *sna,
r->dst.x, r->dst.y, op->dst.x, op->dst.y,
r->width, r->height));
if (FLUSH_EVERY_VERTEX && op->need_magic_ca_pass)
if (FLUSH_EVERY_VERTEX && op->need_magic_ca_pass) {
/* We have to reset the state after every FLUSH */
gen4_emit_pipelined_pointers(sna, op,
op->op, op->u.gen4.wm_kernel);
if (kgem_check_batch(&sna->kgem, 20)) {
gen4_emit_pipelined_pointers(sna, op, op->op,
op->u.gen4.wm_kernel);
} else
gen4_bind_surfaces(sna, op);
}
if (!gen4_get_rectangles(sna, op, 1)) {
gen4_bind_surfaces(sna, op);