From 7d967b9b7c08aea2a471c5bf6aced8bfafdae874 Mon Sep 17 00:00:00 2001 From: Christoph Bumiller Date: Wed, 28 Oct 2009 00:30:45 +0100 Subject: nv50: activate more lanes in a warp MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Some cards have crippling defaults set and use only 4 of 32 lanes. This should activate 16 on these. Those that allow 32 by default should still do so. Found out by Marcin Kościelnicki. --- src/gallium/drivers/nv50/nv50_screen.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/src/gallium/drivers/nv50/nv50_screen.c b/src/gallium/drivers/nv50/nv50_screen.c index c672ea471a..c8d0f1e4d8 100644 --- a/src/gallium/drivers/nv50/nv50_screen.c +++ b/src/gallium/drivers/nv50/nv50_screen.c @@ -309,6 +309,10 @@ nv50_screen_create(struct pipe_winsys *ws, struct nouveau_device *dev) so_method(so, screen->tesla, 0x121c, 1); so_data (so, 1); + /* try to activate all/more lanes (threads) in a warp */ + so_method(so, screen->tesla, 0x1400, 1); + so_data (so, 0xf); + so_method(so, screen->tesla, 0x13bc, 1); so_data (so, 0x54); /* origin is top left (set to 1 for bottom left) */ -- cgit v1.2.3