search for: r100c08_page

...using the default DMA mask of 32, which may cause + * problems on systems with no RAM below the 4 GB mark. So set + * the streaming DMA mask here as well. + */ + dma_set_mask(device->dev, DMA_BIT_MASK(device->mmu->dma_bits)); + + fb->r100c08 = dma_map_page(device->dev, fb->r100c08_page, 0, + PAGE_SIZE, DMA_BIDIRECTIONAL); + if (dma_mapping_error(device->dev, fb->r100c08)) { + nvkm_warn(&fb->base.subdev, + "dma_map_page() failed on 100c08 page\n"); + } + } + /* Not a clue what this is exactly. Without pointing it at a * scratch page, VR...

.../fb/nv50.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/nv50.c @@ -216,11 +216,23 @@ nv50_fb_init(struct nvkm_fb *base) struct nv50_fb *fb = nv50_fb(base); struct nvkm_device *device = fb->base.subdev.device; + if (!fb->r100c08) { + dma_addr_t addr = dma_map_page(device->dev, fb->r100c08_page, 0, + PAGE_SIZE, DMA_BIDIRECTIONAL); + if (!dma_mapping_error(device->dev, addr)) { + fb->r100c08 = addr; + } else { + nvkm_warn(&fb->base.subdev, + "dma_map_page() failed on 100c08 page\n"); + } + } + /* Not a clue what this is exactly. Without poin...

...fault DMA mask of 32, which may cause + * problems on systems with no RAM below the 4 GB mark. So set + * the streaming DMA mask here as well. + */ + dma_addr_t addr; + + dma_set_mask(device->dev, DMA_BIT_MASK(device->mmu->dma_bits)); + + addr = dma_map_page(device->dev, fb->r100c08_page, 0, PAGE_SIZE, + DMA_BIDIRECTIONAL); + if (!dma_mapping_error(device->dev, addr)) { + fb->r100c08 = addr; + } else { + nvkm_warn(&fb->base.subdev, + "dma_map_page() failed on 100c08 page\n"); + } + } + /* Not a clue what this is exactly. Without pointing...

...uveau_device *device, bool stall); diff --git a/nvkm/subdev/fb/nv50.c b/nvkm/subdev/fb/nv50.c index 1fc55c1e91a1..7d88e17fa927 100644 --- a/nvkm/subdev/fb/nv50.c +++ b/nvkm/subdev/fb/nv50.c @@ -250,7 +250,9 @@ nv50_fb_ctor(struct nouveau_object *parent, struct nouveau_object *engine, priv->r100c08_page = alloc_page(GFP_KERNEL | __GFP_ZERO); if (priv->r100c08_page) { - priv->r100c08 = nv_device_map_page(device, priv->r100c08_page); + priv->r100c08 = dma_map_page(nv_device_base(device), + priv->r100c08_page, 0, PAGE_SIZE, + DMA_BIDIRECTIONAL); if (!priv->r...

...using the default DMA mask of 32, which may cause + * problems on systems with no RAM below the 4 GB mark. So set + * the streaming DMA mask here as well. + */ + dma_set_mask(device->dev, DMA_BIT_MASK(device->mmu->dma_bits)); + + fb->r100c08 = dma_map_page(device->dev, fb->r100c08_page, 0, + PAGE_SIZE, DMA_BIDIRECTIONAL); + if (dma_mapping_error(device->dev, fb->r100c08)) { + nvkm_warn(&fb->base.subdev, + "dma_map_page() failed on 100c08 page\n"); + } + } + /* Not a clue what this is exactly. Without pointing it at a * scratch page, VR...

...> diff --git a/nvkm/subdev/fb/nv50.c b/nvkm/subdev/fb/nv50.c > index 1fc55c1e91a1..7d88e17fa927 100644 > --- a/nvkm/subdev/fb/nv50.c > +++ b/nvkm/subdev/fb/nv50.c > @@ -250,7 +250,9 @@ nv50_fb_ctor(struct nouveau_object *parent, struct nouveau_object *engine, > > priv->r100c08_page = alloc_page(GFP_KERNEL | __GFP_ZERO); > if (priv->r100c08_page) { > - priv->r100c08 = nv_device_map_page(device, priv->r100c08_page); > + priv->r100c08 = dma_map_page(nv_device_base(device), > + priv->r100c08_page, 0, PAGE_SIZE, > + DMA_BIDIRECTI...

This v4 is now a 3 piece series, after Alexandre pointed out that both GF 100 and NV50 are affected by the same issue, and that a related issue has been solved already for Tegra in commit 9d0394c6bed5 ("drm/nouveau/instmem/gk20a: set DMA mask early"). The issue that this series addresses is the fact that the Nouveau driver invokes the DMA API before setting the DMA mask. In both cases

This v4 is now a 3 piece series (since v4), after Alexandre pointed out that both GF 100 and NV50 are affected by the same issue, and that a related issue has been solved already for Tegra in commit 9d0394c6bed5 ("drm/nouveau/instmem/gk20a: set DMA mask early"). The issue that this series addresses is the fact that the Nouveau driver invokes the DMA API before setting the DMA mask. In

.../drivers/gpu/drm/nouveau/core/subdev/fb/nv50.c index cbc7f00c1278..1fc55c1e91a1 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/fb/nv50.c +++ b/drivers/gpu/drm/nouveau/core/subdev/fb/nv50.c @@ -250,10 +250,8 @@ nv50_fb_ctor(struct nouveau_object *parent, struct nouveau_object *engine, priv->r100c08_page = alloc_page(GFP_KERNEL | __GFP_ZERO); if (priv->r100c08_page) { - priv->r100c08 = pci_map_page(device->pdev, priv->r100c08_page, - 0, PAGE_SIZE, - PCI_DMA_BIDIRECTIONAL); - if (pci_dma_mapping_error(device->pdev, priv->r100c08)) + priv->r100c08 = nv_devi...

On 12/02/14 05:38, Alexandre Courbot wrote: > Upcoming mobile Kepler GPUs (such as GK20A) use the platform bus instead > of PCI to which Nouveau is tightly dependent. This patch allows Nouveau > to handle platform devices by: > > - abstracting PCI-dependent functions that were typically used for > resource querying and page mapping, > - introducing a nv_device_is_pci()

On Mon, Feb 10, 2014 at 8:50 PM, Thierry Reding <thierry.reding at gmail.com> wrote: > On Mon, Feb 10, 2014 at 02:53:00PM +0900, Alexandre Courbot wrote: > [...] >> diff --git a/drivers/gpu/drm/nouveau/core/engine/device/base.c b/drivers/gpu/drm/nouveau/core/engine/device/base.c > [...] >> +resource_size_t >> +nv_device_resource_start(struct nouveau_device *device,

.../drivers/gpu/drm/nouveau/core/subdev/fb/nv50.c index cbc7f00c1278..1fc55c1e91a1 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/fb/nv50.c +++ b/drivers/gpu/drm/nouveau/core/subdev/fb/nv50.c @@ -250,10 +250,8 @@ nv50_fb_ctor(struct nouveau_object *parent, struct nouveau_object *engine, priv->r100c08_page = alloc_page(GFP_KERNEL | __GFP_ZERO); if (priv->r100c08_page) { - priv->r100c08 = pci_map_page(device->pdev, priv->r100c08_page, - 0, PAGE_SIZE, - PCI_DMA_BIDIRECTIONAL); - if (pci_dma_mapping_error(device->pdev, priv->r100c08)) + priv->r100c08 = nv_devi...