diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_sgdma.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_sgdma.c | 68 |
1 files changed, 38 insertions, 30 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_sgdma.c b/drivers/gpu/drm/nouveau/nouveau_sgdma.c index 6b9187d7f67..288bacac7e5 100644 --- a/drivers/gpu/drm/nouveau/nouveau_sgdma.c +++ b/drivers/gpu/drm/nouveau/nouveau_sgdma.c @@ -95,9 +95,9 @@ nouveau_sgdma_bind(struct ttm_backend *be, struct ttm_mem_reg *mem) struct nouveau_gpuobj *gpuobj = dev_priv->gart_info.sg_ctxdma; unsigned i, j, pte; - NV_DEBUG(dev, "pg=0x%lx\n", mem->mm_node->start); + NV_DEBUG(dev, "pg=0x%lx\n", mem->start); - pte = nouveau_sgdma_pte(nvbe->dev, mem->mm_node->start << PAGE_SHIFT); + pte = nouveau_sgdma_pte(nvbe->dev, mem->start << PAGE_SHIFT); nvbe->pte_start = pte; for (i = 0; i < nvbe->nr_pages; i++) { dma_addr_t dma_offset = nvbe->pages[i]; @@ -105,11 +105,13 @@ nouveau_sgdma_bind(struct ttm_backend *be, struct ttm_mem_reg *mem) uint32_t offset_h = upper_32_bits(dma_offset); for (j = 0; j < PAGE_SIZE / NV_CTXDMA_PAGE_SIZE; j++) { - if (dev_priv->card_type < NV_50) - nv_wo32(dev, gpuobj, pte++, offset_l | 3); - else { - nv_wo32(dev, gpuobj, pte++, offset_l | 0x21); - nv_wo32(dev, gpuobj, pte++, offset_h & 0xff); + if (dev_priv->card_type < NV_50) { + nv_wo32(gpuobj, (pte * 4) + 0, offset_l | 3); + pte += 1; + } else { + nv_wo32(gpuobj, (pte * 4) + 0, offset_l | 0x21); + nv_wo32(gpuobj, (pte * 4) + 4, offset_h & 0xff); + pte += 2; } dma_offset += NV_CTXDMA_PAGE_SIZE; @@ -145,11 +147,13 @@ nouveau_sgdma_unbind(struct ttm_backend *be) dma_addr_t dma_offset = dev_priv->gart_info.sg_dummy_bus; for (j = 0; j < PAGE_SIZE / NV_CTXDMA_PAGE_SIZE; j++) { - if (dev_priv->card_type < NV_50) - nv_wo32(dev, gpuobj, pte++, dma_offset | 3); - else { - nv_wo32(dev, gpuobj, pte++, dma_offset | 0x21); - nv_wo32(dev, gpuobj, pte++, 0x00000000); + if (dev_priv->card_type < NV_50) { + nv_wo32(gpuobj, (pte * 4) + 0, dma_offset | 3); + pte += 1; + } else { + nv_wo32(gpuobj, (pte * 4) + 0, 0x00000000); + nv_wo32(gpuobj, (pte * 4) + 4, 0x00000000); + pte += 2; } dma_offset += NV_CTXDMA_PAGE_SIZE; @@ -230,7 +234,6 @@ nouveau_sgdma_init(struct drm_device *dev) } ret = nouveau_gpuobj_new(dev, NULL, obj_size, 16, - NVOBJ_FLAG_ALLOW_NO_REFS | NVOBJ_FLAG_ZERO_ALLOC | NVOBJ_FLAG_ZERO_FREE, &gpuobj); if (ret) { @@ -239,9 +242,9 @@ nouveau_sgdma_init(struct drm_device *dev) } dev_priv->gart_info.sg_dummy_page = - alloc_page(GFP_KERNEL|__GFP_DMA32); + alloc_page(GFP_KERNEL|__GFP_DMA32|__GFP_ZERO); if (!dev_priv->gart_info.sg_dummy_page) { - nouveau_gpuobj_del(dev, &gpuobj); + nouveau_gpuobj_ref(NULL, &gpuobj); return -ENOMEM; } @@ -250,29 +253,34 @@ nouveau_sgdma_init(struct drm_device *dev) pci_map_page(pdev, dev_priv->gart_info.sg_dummy_page, 0, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); if (pci_dma_mapping_error(pdev, dev_priv->gart_info.sg_dummy_bus)) { - nouveau_gpuobj_del(dev, &gpuobj); + nouveau_gpuobj_ref(NULL, &gpuobj); return -EFAULT; } if (dev_priv->card_type < NV_50) { + /* special case, allocated from global instmem heap so + * cinst is invalid, we use it on all channels though so + * cinst needs to be valid, set it the same as pinst + */ + gpuobj->cinst = gpuobj->pinst; + /* Maybe use NV_DMA_TARGET_AGP for PCIE? NVIDIA do this, and * confirmed to work on c51. Perhaps means NV_DMA_TARGET_PCIE * on those cards? */ - nv_wo32(dev, gpuobj, 0, NV_CLASS_DMA_IN_MEMORY | - (1 << 12) /* PT present */ | - (0 << 13) /* PT *not* linear */ | - (NV_DMA_ACCESS_RW << 14) | - (NV_DMA_TARGET_PCI << 16)); - nv_wo32(dev, gpuobj, 1, aper_size - 1); + nv_wo32(gpuobj, 0, NV_CLASS_DMA_IN_MEMORY | + (1 << 12) /* PT present */ | + (0 << 13) /* PT *not* linear */ | + (NV_DMA_ACCESS_RW << 14) | + (NV_DMA_TARGET_PCI << 16)); + nv_wo32(gpuobj, 4, aper_size - 1); for (i = 2; i < 2 + (aper_size >> 12); i++) { - nv_wo32(dev, gpuobj, i, - dev_priv->gart_info.sg_dummy_bus | 3); + nv_wo32(gpuobj, i * 4, + dev_priv->gart_info.sg_dummy_bus | 3); } } else { for (i = 0; i < obj_size; i += 8) { - nv_wo32(dev, gpuobj, (i+0)/4, - dev_priv->gart_info.sg_dummy_bus | 0x21); - nv_wo32(dev, gpuobj, (i+4)/4, 0); + nv_wo32(gpuobj, i + 0, 0x00000000); + nv_wo32(gpuobj, i + 4, 0x00000000); } } dev_priv->engine.instmem.flush(dev); @@ -298,7 +306,7 @@ nouveau_sgdma_takedown(struct drm_device *dev) dev_priv->gart_info.sg_dummy_bus = 0; } - nouveau_gpuobj_del(dev, &dev_priv->gart_info.sg_ctxdma); + nouveau_gpuobj_ref(NULL, &dev_priv->gart_info.sg_ctxdma); } int @@ -308,9 +316,9 @@ nouveau_sgdma_get_page(struct drm_device *dev, uint32_t offset, uint32_t *page) struct nouveau_gpuobj *gpuobj = dev_priv->gart_info.sg_ctxdma; int pte; - pte = (offset >> NV_CTXDMA_PAGE_SHIFT); + pte = (offset >> NV_CTXDMA_PAGE_SHIFT) << 2; if (dev_priv->card_type < NV_50) { - *page = nv_ro32(dev, gpuobj, (pte + 2)) & ~NV_CTXDMA_PAGE_MASK; + *page = nv_ro32(gpuobj, (pte + 8)) & ~NV_CTXDMA_PAGE_MASK; return 0; } |