diff options
| author | Francisco Jerez <currojerez@riseup.net> | 2011-02-03 03:49:33 +0300 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2011-02-17 02:39:45 +0300 |
| commit | 812f219a0f8a74a558c35be7942a07232ba348a5 (patch) | |
| tree | 48c35be1a67f9068c1c771a6dddd9698959a1234 | |
| parent | c4534fdf5603ef53fce2f418df7b5a19e71281e3 (diff) | |
| download | linux-812f219a0f8a74a558c35be7942a07232ba348a5.tar.xz | |
drm/nv10: Fix crash when allocating a BO larger than half the available VRAM.
Reported-by: Alex Buell <alex.buell@munted.org.uk>
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_bo.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c index a7fae26f4654..98dd970cea24 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bo.c +++ b/drivers/gpu/drm/nouveau/nouveau_bo.c @@ -128,6 +128,7 @@ nouveau_bo_new(struct drm_device *dev, struct nouveau_channel *chan, } } + nvbo->bo.mem.num_pages = size >> PAGE_SHIFT; nouveau_bo_placement_set(nvbo, flags, 0); nvbo->channel = chan; @@ -166,17 +167,17 @@ static void set_placement_range(struct nouveau_bo *nvbo, uint32_t type) { struct drm_nouveau_private *dev_priv = nouveau_bdev(nvbo->bo.bdev); + int vram_pages = dev_priv->vram_size >> PAGE_SHIFT; if (dev_priv->card_type == NV_10 && - nvbo->tile_mode && (type & TTM_PL_FLAG_VRAM)) { + nvbo->tile_mode && (type & TTM_PL_FLAG_VRAM) && + nvbo->bo.mem.num_pages < vram_pages / 2) { /* * Make sure that the color and depth buffers are handled * by independent memory controller units. Up to a 9x * speed up when alpha-blending and depth-test are enabled * at the same time. */ - int vram_pages = dev_priv->vram_size >> PAGE_SHIFT; - if (nvbo->tile_flags & NOUVEAU_GEM_TILE_ZETA) { nvbo->placement.fpfn = vram_pages / 2; nvbo->placement.lpfn = ~0; |