diff options
Diffstat (limited to 'linux-core')
| -rw-r--r-- | linux-core/ati_pcigart.c | 98 |
1 files changed, 49 insertions, 49 deletions
diff --git a/linux-core/ati_pcigart.c b/linux-core/ati_pcigart.c index 404c5b73..06868cb6 100644 --- a/linux-core/ati_pcigart.c +++ b/linux-core/ati_pcigart.c @@ -91,6 +91,49 @@ static void drm_ati_free_pcigart_table(void *address) free_pages((unsigned long)address, ATI_PCIGART_TABLE_ORDER); } +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; +} +EXPORT_SYMBOL(drm_ati_pcigart_cleanup); + int drm_ati_pcigart_init(drm_device_t * dev, drm_ati_pcigart_info *gart_info) { drm_sg_mem_t *entry = dev->sg; @@ -104,7 +147,7 @@ int drm_ati_pcigart_init(drm_device_t * dev, drm_ati_pcigart_info *gart_info) goto done; } - if (gart_info->gart_table_location==DRM_ATI_GART_MAIN) + if (gart_info->gart_table_location == DRM_ATI_GART_MAIN) { DRM_DEBUG("PCI: no table in VRAM: using normal RAM\n"); @@ -120,20 +163,19 @@ int drm_ati_pcigart_init(drm_device_t * dev, drm_ati_pcigart_info *gart_info) } bus_address = pci_map_single(dev->pdev, address, - ATI_PCIGART_TABLE_PAGES * PAGE_SIZE, - PCI_DMA_TODEVICE); + 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 - { + } 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); + DRM_DEBUG("PCI: Gart Table: VRAM %08X mapped at %08lX\n", + bus_address, (unsigned long)address); } pci_gart = (u32 *) address; @@ -183,46 +225,4 @@ int drm_ati_pcigart_init(drm_device_t * dev, drm_ati_pcigart_info *gart_info) } EXPORT_SYMBOL(drm_ati_pcigart_init); -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; -} -EXPORT_SYMBOL(drm_ati_pcigart_cleanup); |