diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nv50_fb.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv50_fb.c | 51 |
1 files changed, 35 insertions, 16 deletions
diff --git a/drivers/gpu/drm/nouveau/nv50_fb.c b/drivers/gpu/drm/nouveau/nv50_fb.c index 50290dea0ac4..ed411d88451d 100644 --- a/drivers/gpu/drm/nouveau/nv50_fb.c +++ b/drivers/gpu/drm/nouveau/nv50_fb.c @@ -8,31 +8,61 @@ struct nv50_fb_priv { dma_addr_t r100c08; }; +static void +nv50_fb_destroy(struct drm_device *dev) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_fb_engine *pfb = &dev_priv->engine.fb; + struct nv50_fb_priv *priv = pfb->priv; + + if (drm_mm_initialized(&pfb->tag_heap)) + drm_mm_takedown(&pfb->tag_heap); + + if (priv->r100c08_page) { + pci_unmap_page(dev->pdev, priv->r100c08, PAGE_SIZE, + PCI_DMA_BIDIRECTIONAL); + __free_page(priv->r100c08_page); + } + + kfree(priv); + pfb->priv = NULL; +} + static int nv50_fb_create(struct drm_device *dev) { struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_fb_engine *pfb = &dev_priv->engine.fb; struct nv50_fb_priv *priv; + u32 tagmem; + int ret; priv = kzalloc(sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM; + pfb->priv = priv; priv->r100c08_page = alloc_page(GFP_KERNEL | __GFP_ZERO); if (!priv->r100c08_page) { - kfree(priv); + nv50_fb_destroy(dev); return -ENOMEM; } priv->r100c08 = pci_map_page(dev->pdev, priv->r100c08_page, 0, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); if (pci_dma_mapping_error(dev->pdev, priv->r100c08)) { - __free_page(priv->r100c08_page); - kfree(priv); + nv50_fb_destroy(dev); return -EFAULT; } - dev_priv->engine.fb.priv = priv; + tagmem = nv_rd32(dev, 0x100320); + NV_DEBUG(dev, "%d tags available\n", tagmem); + ret = drm_mm_init(&pfb->tag_heap, 0, tagmem); + if (ret) { + nv50_fb_destroy(dev); + return ret; + } + return 0; } @@ -81,18 +111,7 @@ nv50_fb_init(struct drm_device *dev) void nv50_fb_takedown(struct drm_device *dev) { - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nv50_fb_priv *priv; - - priv = dev_priv->engine.fb.priv; - if (!priv) - return; - dev_priv->engine.fb.priv = NULL; - - pci_unmap_page(dev->pdev, priv->r100c08, PAGE_SIZE, - PCI_DMA_BIDIRECTIONAL); - __free_page(priv->r100c08_page); - kfree(priv); + nv50_fb_destroy(dev); } void |