From 304424e17dd904cef048ef8966d9f54618a915cc Mon Sep 17 00:00:00 2001 From: Marcin Kościelnicki Date: Mon, 1 Mar 2010 00:18:39 +0000 Subject: drm/nv50: Improve PGRAPH interrupt handling. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This makes nouveau recognise and report more kinds of PGRAPH errors, as well as prevent GPU lockups resulting from some of them. Lots of guesswork was involved and some part of this is probably incorrect. Some potential-lockuop situations are handled by just resetting a whole PGRAPH subunit, which doesn't sound like a "proper" solution, but seems to work just fine... for now. Signed-off-by: Marcin Kościelnicki Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nv50_graph.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'drivers/gpu/drm/nouveau/nv50_graph.c') diff --git a/drivers/gpu/drm/nouveau/nv50_graph.c b/drivers/gpu/drm/nouveau/nv50_graph.c index 08d87b749a52..c62b33a02f88 100644 --- a/drivers/gpu/drm/nouveau/nv50_graph.c +++ b/drivers/gpu/drm/nouveau/nv50_graph.c @@ -56,6 +56,10 @@ nv50_graph_init_intr(struct drm_device *dev) static void nv50_graph_init_regs__nv(struct drm_device *dev) { + struct drm_nouveau_private *dev_priv = dev->dev_private; + uint32_t units = nv_rd32(dev, 0x1540); + int i; + NV_DEBUG(dev, "\n"); nv_wr32(dev, 0x400804, 0xc0000000); @@ -65,6 +69,20 @@ nv50_graph_init_regs__nv(struct drm_device *dev) nv_wr32(dev, 0x405018, 0xc0000000); nv_wr32(dev, 0x402000, 0xc0000000); + for (i = 0; i < 16; i++) { + if (units & 1 << i) { + if (dev_priv->chipset < 0xa0) { + nv_wr32(dev, 0x408900 + (i << 12), 0xc0000000); + nv_wr32(dev, 0x408e08 + (i << 12), 0xc0000000); + nv_wr32(dev, 0x408314 + (i << 12), 0xc0000000); + } else { + nv_wr32(dev, 0x408600 + (i << 11), 0xc0000000); + nv_wr32(dev, 0x408708 + (i << 11), 0xc0000000); + nv_wr32(dev, 0x40831c + (i << 11), 0xc0000000); + } + } + } + nv_wr32(dev, 0x400108, 0xffffffff); nv_wr32(dev, 0x400824, 0x00004000); -- cgit v1.2.3-59-g8ed1b