C++ (Cpp) drm_ati_free_pcigart_table Examples

Example #1

int drm_ati_pcigart_cleanup(struct drm_device *dev, struct drm_ati_pcigart_info *gart_info)
{
	/* we need to support large memory configurations */
	if (dev->sg == NULL) {
		DRM_ERROR("no scatter/gather memory!\n");
		return 0;
	}

	if (gart_info->bus_addr) {
		if (gart_info->gart_table_location == DRM_ATI_GART_MAIN) {
			gart_info->bus_addr = 0;
			if (dev->sg->dmah)
				drm_ati_free_pcigart_table(dev, gart_info);
		}
	}

	return 1;
}

Example #2

File: ati_pcigart.c Project: Ionic/nx-libs

int drm_ati_pcigart_cleanup(drm_device_t * dev, drm_ati_pcigart_info *gart_info)
{
	drm_sg_mem_t *entry = dev->sg;
	unsigned long pages;
	int i;

	/* we need to support large memory configurations */
	if (!entry) {
		DRM_ERROR("no scatter/gather memory!\n");
		return 0;
	}

	if (gart_info->bus_addr) {
		if (gart_info->gart_table_location==DRM_ATI_GART_MAIN) {
			pci_unmap_single(dev->pdev, gart_info->bus_addr,
					 ATI_PCIGART_TABLE_PAGES * PAGE_SIZE,
					 PCI_DMA_TODEVICE);
		}

		pages = (entry->pages <= ATI_MAX_PCIGART_PAGES)
		    ? entry->pages : ATI_MAX_PCIGART_PAGES;

		for (i = 0; i < pages; i++) {
			if (!entry->busaddr[i])
				break;
			pci_unmap_single(dev->pdev, entry->busaddr[i],
					 PAGE_SIZE, PCI_DMA_TODEVICE);
		}

		if (gart_info->gart_table_location==DRM_ATI_GART_MAIN)
			gart_info->bus_addr=0;
	}


	if (gart_info->gart_table_location==DRM_ATI_GART_MAIN && gart_info->addr) {
		drm_ati_free_pcigart_table(gart_info->addr);
		gart_info->addr=0;
	}

	return 1;
}

Example #3

File: ati_pcigart.c Project: Ionic/nx-libs

int drm_ati_pcigart_init(drm_device_t * dev, drm_ati_pcigart_info *gart_info)
{
	drm_sg_mem_t *entry = dev->sg;
	void *address = NULL;
	unsigned long pages;
	u32 *pci_gart, page_base, bus_address = 0;
	int i, j, ret = 0;

	if (!entry) {
		DRM_ERROR("no scatter/gather memory!\n");
		goto done;
	}

	if (gart_info->gart_table_location==DRM_ATI_GART_MAIN)
	{
		DRM_DEBUG("PCI: no table in VRAM: using normal RAM\n");
		
		address = drm_ati_alloc_pcigart_table();
		if (!address) {
			DRM_ERROR("cannot allocate PCI GART page!\n");
			goto done;
		}
		
		if (!dev->pdev) {
			DRM_ERROR("PCI device unknown!\n");
			goto done;
		}
		
		bus_address = pci_map_single(dev->pdev, address,
					     ATI_PCIGART_TABLE_PAGES * PAGE_SIZE,
					     PCI_DMA_TODEVICE);
		if (bus_address == 0) {
			DRM_ERROR("unable to map PCIGART pages!\n");
			drm_ati_free_pcigart_table(address);
			address = 0;
			goto done;
		}
	}
	else
	{
		address = gart_info->addr;
		bus_address = gart_info->bus_addr;
		DRM_DEBUG("PCI: Gart Table: VRAM %08X mapped at %08lX\n", bus_address, (unsigned long)address);
	}

	pci_gart = (u32 *) address;

	pages = (entry->pages <= ATI_MAX_PCIGART_PAGES)
	    ? entry->pages : ATI_MAX_PCIGART_PAGES;

	memset(pci_gart, 0, ATI_MAX_PCIGART_PAGES * sizeof(u32));

	for (i = 0; i < pages; i++) {
		/* we need to support large memory configurations */
		entry->busaddr[i] = pci_map_single(dev->pdev,
						   page_address(entry->
								pagelist[i]),
						   PAGE_SIZE, PCI_DMA_TODEVICE);
		if (entry->busaddr[i] == 0) {
			DRM_ERROR("unable to map PCIGART pages!\n");
			drm_ati_pcigart_cleanup(dev, gart_info);
			address = NULL;
			bus_address = 0;
			goto done;
		}
		page_base = (u32) entry->busaddr[i];

		for (j = 0; j < (PAGE_SIZE / ATI_PCIGART_PAGE_SIZE); j++) {
			if (gart_info->is_pcie)
				*pci_gart = (cpu_to_le32(page_base)>>8) | 0xc;
			else
				*pci_gart = cpu_to_le32(page_base);
			pci_gart++;
			page_base += ATI_PCIGART_PAGE_SIZE;
		}
	}