From ee508b821c2042fb852a078e594bd36606973780 Mon Sep 17 00:00:00 2001 From: Francisco Jerez Date: Wed, 25 Aug 2010 12:54:53 +0200 Subject: [PATCH] drm/nv20: Don't use pushbuf calls on the original nv20. The "return" command is buggy on the original nv20, it jumps back to the caller address as expected, but it doesn't clear the subroutine active bit making the subsequent pushbuf calls fail with a "stack" overflow. Signed-off-by: Francisco Jerez Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nouveau_gem.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c index a915dcdd9a4..613f878e6d0 100644 --- a/drivers/gpu/drm/nouveau/nouveau_gem.c +++ b/drivers/gpu/drm/nouveau/nouveau_gem.c @@ -663,7 +663,7 @@ nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data, push[i].length); } } else - if (dev_priv->card_type >= NV_20) { + if (dev_priv->chipset >= 0x25) { ret = RING_SPACE(chan, req->nr_push * 2); if (ret) { NV_ERROR(dev, "cal_space: %d\n", ret); @@ -738,7 +738,7 @@ out_next: req->suffix0 = 0x00000000; req->suffix1 = 0x00000000; } else - if (dev_priv->card_type >= NV_20) { + if (dev_priv->chipset >= 0x25) { req->suffix0 = 0x00020000; req->suffix1 = 0x00000000; } else { -- 2.20.1