diff options
| author | Jimmy Rentz <jb17bsome@gmail.com> | 2011-04-17 16:15:09 -0400 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2011-05-16 10:50:04 +1000 |
| commit | 976661093dab143f164b81f15133724fa2a4bb86 (patch) | |
| tree | fbeabcef93379eedcff2765a04c92c0a99446695 /drivers | |
| parent | 2abdb057e45ea9b558653a97d979053cfdd1a04a (diff) | |
| download | kernel_samsung_smdk4412-976661093dab143f164b81f15133724fa2a4bb86.zip kernel_samsung_smdk4412-976661093dab143f164b81f15133724fa2a4bb86.tar.gz kernel_samsung_smdk4412-976661093dab143f164b81f15133724fa2a4bb86.tar.bz2 | |
drm/nouveau: Fix a crash at card takedown for NV40 and older cards
NV40 and older cards (pre NV50) reserve a vram bo for the vga memory at
card init. This bo is then freed at card shutdown. The problem is that
the ttm bo vram manager was already freed. So a crash occurs when the
vga bo is freed. The fix is to free the vga bo prior to freeing the ttm
bo vram manager. There might be other solutions but this seemed the
simplest to me.
Signed-off-by: Jimmy Rentz <jb17bsome@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_mem.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_state.c | 5 |
2 files changed, 5 insertions, 2 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_mem.c b/drivers/gpu/drm/nouveau/nouveau_mem.c index 9c7bc3f..ce3cb5e 100644 --- a/drivers/gpu/drm/nouveau/nouveau_mem.c +++ b/drivers/gpu/drm/nouveau/nouveau_mem.c @@ -154,8 +154,6 @@ nouveau_mem_vram_fini(struct drm_device *dev) { struct drm_nouveau_private *dev_priv = dev->dev_private; - nouveau_bo_ref(NULL, &dev_priv->vga_ram); - ttm_bo_device_release(&dev_priv->ttm.bdev); nouveau_ttm_global_release(dev_priv); diff --git a/drivers/gpu/drm/nouveau/nouveau_state.c b/drivers/gpu/drm/nouveau/nouveau_state.c index f316157..8771677 100644 --- a/drivers/gpu/drm/nouveau/nouveau_state.c +++ b/drivers/gpu/drm/nouveau/nouveau_state.c @@ -738,6 +738,11 @@ static void nouveau_card_takedown(struct drm_device *dev) engine->mc.takedown(dev); engine->display.late_takedown(dev); + if (dev_priv->vga_ram) { + nouveau_bo_unpin(dev_priv->vga_ram); + nouveau_bo_ref(NULL, &dev_priv->vga_ram); + } + mutex_lock(&dev->struct_mutex); ttm_bo_clean_mm(&dev_priv->ttm.bdev, TTM_PL_VRAM); ttm_bo_clean_mm(&dev_priv->ttm.bdev, TTM_PL_TT); |