search for: platformdev

...rm/nouveau/core/engine/device/base.c > @@ -489,7 +489,10 @@ nv_device_map_page(struct nouveau_device *device, struct page *page) > if (pci_dma_mapping_error(device->pdev, ret)) > ret = 0; > } else { > - ret = page_to_phys(page); > + ret = dma_map_page(&device->platformdev->dev, page, 0, > + PAGE_SIZE, DMA_BIDIRECTIONAL); > + if (dma_mapping_error(&device->platformdev->dev, ret)) > + ret = 0; > } > > return ret; > @@ -501,6 +504,9 @@ nv_device_unmap_page(struct nouveau_device *device, dma_addr_t addr) > if (nv_dev...

...> +resource_size_t > +nv_device_resource_start(struct nouveau_device *device, unsigned int bar) > +{ > + if (nv_device_is_pci(device)) { > + return pci_resource_start(device->pdev, bar); > + } else { > + struct resource *res; > + res = platform_get_resource(device->platformdev, > + IORESOURCE_MEM, bar); > + if (!res) > + return 0; > + return res->start; > + } > +} > + > +resource_size_t > +nv_device_resource_len(struct nouveau_device *device, unsigned int bar) > +{ > + if (nv_device_is_pci(device)) { > + return pci_reso...

...gine_destroy(&device->base); } +resource_size_t +nv_device_resource_start(struct nouveau_device *device, unsigned int bar) +{ + if (nv_device_is_pci(device)) { + return pci_resource_start(device->pdev, bar); + } else { + struct resource *res; + res = platform_get_resource(device->platformdev, + IORESOURCE_MEM, bar); + if (!res) + return 0; + return res->start; + } +} + +resource_size_t +nv_device_resource_len(struct nouveau_device *device, unsigned int bar) +{ + if (nv_device_is_pci(device)) { + return pci_resource_len(device->pdev, bar); + } else { + struct resourc...

...ice/base.c +++ b/drivers/gpu/drm/nouveau/core/engine/device/base.c @@ -489,7 +489,10 @@ nv_device_map_page(struct nouveau_device *device, struct page *page) if (pci_dma_mapping_error(device->pdev, ret)) ret = 0; } else { - ret = page_to_phys(page); + ret = dma_map_page(&device->platformdev->dev, page, 0, + PAGE_SIZE, DMA_BIDIRECTIONAL); + if (dma_mapping_error(&device->platformdev->dev, ret)) + ret = 0; } return ret; @@ -501,6 +504,9 @@ nv_device_unmap_page(struct nouveau_device *device, dma_addr_t addr) if (nv_device_is_pci(device)) pci_unmap_page(de...

...eau_device *device, unsigned int bar) >> +{ >> + if (nv_device_is_pci(device)) { >> + return pci_resource_start(device->pdev, bar); >> + } else { >> + struct resource *res; >> + res = platform_get_resource(device->platformdev, >> + IORESOURCE_MEM, bar); >> + if (!res) >> + return 0; >> + return res->start; >> + } >> +} >> + >> +resource_size_t >> +nv_device_resource_len(struct...

...gt;> struct page *page) >>> if (pci_dma_mapping_error(device->pdev, ret)) >>> ret = 0; >>> } else { >>> - ret = page_to_phys(page); >>> + ret = dma_map_page(&device->platformdev->dev, page, 0, >>> + PAGE_SIZE, DMA_BIDIRECTIONAL); >>> + if (dma_mapping_error(&device->platformdev->dev, ret)) >>> + ret = 0; >>> } >>> >>> retur...

...gine_destroy(&device->base); } +resource_size_t +nv_device_resource_start(struct nouveau_device *device, unsigned int bar) +{ + if (nv_device_is_pci(device)) { + return pci_resource_start(device->pdev, bar); + } else { + struct resource *res; + res = platform_get_resource(device->platformdev, + IORESOURCE_MEM, bar); + if (!res) + return 0; + return res->start; + } +} + +resource_size_t +nv_device_resource_len(struct nouveau_device *device, unsigned int bar) +{ + if (nv_device_is_pci(device)) { + return pci_resource_len(device->pdev, bar); + } else { + struct resourc...

...ce/base.c >> @@ -489,7 +489,10 @@ nv_device_map_page(struct nouveau_device *device, struct page *page) >> if (pci_dma_mapping_error(device->pdev, ret)) >> ret = 0; >> } else { >> - ret = page_to_phys(page); >> + ret = dma_map_page(&device->platformdev->dev, page, 0, >> + PAGE_SIZE, DMA_BIDIRECTIONAL); >> + if (dma_mapping_error(&device->platformdev->dev, ret)) >> + ret = 0; >> } >> >> return ret; >> @@ -501,6 +504,9 @@ nv_device_unmap_page(struct nouveau_device *device, dma_ad...

...gine_destroy(&device->base); } +resource_size_t +nv_device_resource_start(struct nouveau_device *device, unsigned int bar) +{ + if (nv_device_is_pci(device)) { + return pci_resource_start(device->pdev, bar); + } else { + struct resource *res; + res = platform_get_resource(device->platformdev, + IORESOURCE_MEM, bar); + if (!res) + return 0; + return res->start; + } +} + +resource_size_t +nv_device_resource_len(struct nouveau_device *device, unsigned int bar) +{ + if (nv_device_is_pci(device)) { + return pci_resource_len(device->pdev, bar); + } else { + struct resourc...

...ge) >>>> if (pci_dma_mapping_error(device->pdev, ret)) >>>> ret = 0; >>>> } else { >>>> - ret = page_to_phys(page); >>>> + ret = dma_map_page(&device->platformdev->dev, page, 0, >>>> + PAGE_SIZE, DMA_BIDIRECTIONAL); >>>> + if (dma_mapping_error(&device->platformdev->dev, ret)) >>>> + ret = 0; >>>> } >>>> >&...

Another revision of this patchset critical for GK20A to operate. Previous attempts were exclusively using either TTM's regular page allocator or the DMA API one. Both have their advantages and drawbacks: the page allocator is fast but requires explicit synchronization on non-coherent architectures, whereas the DMA allocator always returns coherent memory, but is also slower, creates a

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()

...entry(device, &nv_devices, head) { + if (device->handle == name) + goto done; + } + + ret = nouveau_engine_create_(NULL, NULL, &nouveau_device_oclass, true, + "DEVICE", "device", length, pobject); + device = *pobject; + if (ret) + goto done; + + device->platformdev = pdev; + device->handle = name; + device->cfgopt = cfg; + device->dbgopt = dbg; + device->name = sname; + + nv_subdev(device)->debug = nouveau_dbgopt(device->dbgopt, "DEVICE"); + nv_engine(device)->sclass = nouveau_device_sclass; + list_add(&device->head, &amp...

This patch series is the final (?) step towards the initial support of GK20A, allowing it to be probed and used (currently at a very slow speed, and for offscreen rendering only) on the Jetson TK1 and Venice 2 boards. The main piece if the first patch which adds platform devices probing support to Nouveau. There are probably lots of things that need to be discussed about it, e.g.: * The way the

Hello everyone, GK20A is the Kepler-based GPU used in the upcoming Tegra K1 chips. The following patches perform architectural changes to Nouveau that are necessary to support non-PCI GPUs and add initial support for GK20A. Although the support is still very basic and more user-space changes will be needed to make the full graphics stack run on top of it, we were able to successfully open

..., pobject); + if (err) + return ERR_PTR(err); + + drm = drm_dev_alloc(&driver, &pdev->dev); + if (!drm) { + err = -ENOMEM; + goto err_free; } - return ret; + err = drm_dev_set_unique(drm, "%s", dev_name(&pdev->dev)); + if (err < 0) + goto err_free; + + drm->platformdev = pdev; + platform_set_drvdata(pdev, drm); + + return drm; + +err_free: + nouveau_object_ref(NULL, (struct nouveau_object **)pobject); + + return ERR_PTR(err); } +EXPORT_SYMBOL(nouveau_platform_device_create_); static int __init nouveau_drm_init(void) diff --git a/drivers/gpu/drm/nouveau/nouve...

This series adds support for probing platform devices on Nouveau, as well as the DT bindings for GK20A. It doesn't enable the GPU yet on Tegra boards since a few extra things need to be supported before that. This version is mostly identical to v2 but fixes an important issue: the drvdata must be set to the drm_device for sysfs to work, so the platform device structure now includes the

This series adds support for probing platform devices on Nouveau, as well as the DT bindings for GK20A. It doesn't enable the GPU yet on Tegra boards since a few extra things need to be supported before that. Thanks to the input received for v1, this version is more self-contained and shares less stuff between nouveau_drm and nouveau_platform. The major change is that nouveau_platform is now

...drm_dev_alloc(&driver, &pdev->dev); > + if (!drm) { > + err = -ENOMEM; > + goto err_free; > } > > - return ret; > + err = drm_dev_set_unique(drm, "%s", dev_name(&pdev->dev)); > + if (err < 0) > + goto err_free; > + > + drm->platformdev = pdev; > + platform_set_drvdata(pdev, drm); > + > + return drm; > + > +err_free: > + nouveau_object_ref(NULL, (struct nouveau_object **)pobject); > + > + return ERR_PTR(err); > } > +EXPORT_SYMBOL(nouveau_platform_device_create_); > > static int __init &gt...

...gt;> 8) != PCI_CLASS_DISPLAY_VGA)) goto err_request_regions; if (force_legacy) { diff --git a/include/drm/drmP.h b/include/drm/drmP.h index e928625..a1067c4 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -799,6 +799,7 @@ struct drm_device { #endif struct platform_device *platformdev; /**< Platform device struture */ + struct virtio_device *virtdev; struct drm_sg_mem *sg; /**< Scatter gather memory */ unsigned int num_crtcs; /**< Number of CRTCs on this device */ diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild index 68ceb97..97...