diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nv50_fb.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv50_fb.c | 71 |
1 files changed, 66 insertions, 5 deletions
diff --git a/drivers/gpu/drm/nouveau/nv50_fb.c b/drivers/gpu/drm/nouveau/nv50_fb.c index cd1988b15d2..50290dea0ac 100644 --- a/drivers/gpu/drm/nouveau/nv50_fb.c +++ b/drivers/gpu/drm/nouveau/nv50_fb.c @@ -3,30 +3,75 @@ #include "nouveau_drv.h" #include "nouveau_drm.h" +struct nv50_fb_priv { + struct page *r100c08_page; + dma_addr_t r100c08; +}; + +static int +nv50_fb_create(struct drm_device *dev) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nv50_fb_priv *priv; + + priv = kzalloc(sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->r100c08_page = alloc_page(GFP_KERNEL | __GFP_ZERO); + if (!priv->r100c08_page) { + kfree(priv); + 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); + return -EFAULT; + } + + dev_priv->engine.fb.priv = priv; + return 0; +} + int nv50_fb_init(struct drm_device *dev) { struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nv50_fb_priv *priv; + int ret; + + if (!dev_priv->engine.fb.priv) { + ret = nv50_fb_create(dev); + if (ret) + return ret; + } + priv = dev_priv->engine.fb.priv; /* Not a clue what this is exactly. Without pointing it at a * scratch page, VRAM->GART blits with M2MF (as in DDX DFS) * cause IOMMU "read from address 0" errors (rh#561267) */ - nv_wr32(dev, 0x100c08, dev_priv->gart_info.sg_dummy_bus >> 8); + nv_wr32(dev, 0x100c08, priv->r100c08 >> 8); /* This is needed to get meaningful information from 100c90 * on traps. No idea what these values mean exactly. */ switch (dev_priv->chipset) { case 0x50: - nv_wr32(dev, 0x100c90, 0x0707ff); + nv_wr32(dev, 0x100c90, 0x000707ff); break; case 0xa3: case 0xa5: case 0xa8: - nv_wr32(dev, 0x100c90, 0x0d0fff); + nv_wr32(dev, 0x100c90, 0x000d0fff); + break; + case 0xaf: + nv_wr32(dev, 0x100c90, 0x089d1fff); break; default: - nv_wr32(dev, 0x100c90, 0x1d07ff); + nv_wr32(dev, 0x100c90, 0x001d07ff); break; } @@ -36,12 +81,25 @@ 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); } void nv50_fb_vm_trap(struct drm_device *dev, int display, const char *name) { struct drm_nouveau_private *dev_priv = dev->dev_private; + unsigned long flags; u32 trap[6], idx, chinst; int i, ch; @@ -60,8 +118,10 @@ nv50_fb_vm_trap(struct drm_device *dev, int display, const char *name) return; chinst = (trap[2] << 16) | trap[1]; + + spin_lock_irqsave(&dev_priv->channels.lock, flags); for (ch = 0; ch < dev_priv->engine.fifo.channels; ch++) { - struct nouveau_channel *chan = dev_priv->fifos[ch]; + struct nouveau_channel *chan = dev_priv->channels.ptr[ch]; if (!chan || !chan->ramin) continue; @@ -69,6 +129,7 @@ nv50_fb_vm_trap(struct drm_device *dev, int display, const char *name) if (chinst == chan->ramin->vinst >> 12) break; } + spin_unlock_irqrestore(&dev_priv->channels.lock, flags); NV_INFO(dev, "%s - VM: Trapped %s at %02x%04x%04x status %08x " "channel %d (0x%08x)\n", |