diff options
| author | Francisco Jerez <currojerez@riseup.net> | 2010-12-08 02:37:12 +0100 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2010-12-08 15:53:04 +1000 |
| commit | fd70b6cd780742b97f525415bf5e4fb24a4bb6d8 (patch) | |
| tree | 1f4dd8e185b53aace76c17b44b9c4bb839fc09d7 /drivers/gpu/drm/nouveau/nouveau_sgdma.c | |
| parent | 60d2a88ae896ae51c76f8b15c2f4b762d5b00864 (diff) | |
drm/nv04-nv40: Fix up PCI(E) GART DMA object bus address calculation.
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_sgdma.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_sgdma.c | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_sgdma.c b/drivers/gpu/drm/nouveau/nouveau_sgdma.c index b57201ab538..9a250eb5309 100644 --- a/drivers/gpu/drm/nouveau/nouveau_sgdma.c +++ b/drivers/gpu/drm/nouveau/nouveau_sgdma.c @@ -267,19 +267,15 @@ nouveau_sgdma_takedown(struct drm_device *dev) nouveau_vm_put(&dev_priv->gart_info.vma); } -int -nouveau_sgdma_get_page(struct drm_device *dev, uint32_t offset, uint32_t *page) +uint32_t +nouveau_sgdma_get_physical(struct drm_device *dev, uint32_t offset) { struct drm_nouveau_private *dev_priv = dev->dev_private; struct nouveau_gpuobj *gpuobj = dev_priv->gart_info.sg_ctxdma; - int pte; + int pte = (offset >> NV_CTXDMA_PAGE_SHIFT) + 2; - pte = (offset >> NV_CTXDMA_PAGE_SHIFT) << 2; - if (dev_priv->card_type < NV_50) { - *page = nv_ro32(gpuobj, (pte + 8)) & ~NV_CTXDMA_PAGE_MASK; - return 0; - } + BUG_ON(dev_priv->card_type >= NV_50); - NV_ERROR(dev, "Unimplemented on NV50\n"); - return -EINVAL; + return (nv_ro32(gpuobj, 4 * pte) & ~NV_CTXDMA_PAGE_MASK) | + (offset & NV_CTXDMA_PAGE_MASK); } |