diff options
Diffstat (limited to 'linux-core/ati_pcigart.c')
-rw-r--r-- | linux-core/ati_pcigart.c | 84 |
1 files changed, 48 insertions, 36 deletions
diff --git a/linux-core/ati_pcigart.c b/linux-core/ati_pcigart.c index c9ace516..1dde5ab3 100644 --- a/linux-core/ati_pcigart.c +++ b/linux-core/ati_pcigart.c @@ -91,9 +91,7 @@ static void drm_ati_free_pcigart_table(unsigned long address) free_pages(address, ATI_PCIGART_TABLE_ORDER); } -int drm_ati_pcigart_init(drm_device_t * dev, - unsigned long *addr, dma_addr_t * bus_addr, - int is_pcie) +int drm_ati_pcigart_init(drm_device_t * dev, drm_ati_pcigart_info *gart_info) { drm_sg_mem_t *entry = dev->sg; unsigned long address = 0; @@ -106,25 +104,36 @@ int drm_ati_pcigart_init(drm_device_t * dev, goto done; } - 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; + 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, (void *)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; + } } - - bus_address = pci_map_single(dev->pdev, (void *)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, address); } pci_gart = (u32 *) address; @@ -142,7 +151,7 @@ int drm_ati_pcigart_init(drm_device_t * dev, PAGE_SIZE, PCI_DMA_TODEVICE); if (entry->busaddr[i] == 0) { DRM_ERROR("unable to map PCIGART pages!\n"); - drm_ati_pcigart_cleanup(dev, address, bus_address); + drm_ati_pcigart_cleanup(dev, gart_info); address = 0; bus_address = 0; goto done; @@ -150,11 +159,8 @@ int drm_ati_pcigart_init(drm_device_t * dev, page_base = (u32) entry->busaddr[i]; for (j = 0; j < (PAGE_SIZE / ATI_PCIGART_PAGE_SIZE); j++) { - if (is_pcie) - { + if (gart_info->is_pcie) *pci_gart = (cpu_to_le32(page_base)>>8) | 0xc; -// DRM_DEBUG("PCIE: %d %08X %08X to %p\n", i, page_base, (cpu_to_le32(page_base)>>8)|0xc, pci_gart); - } else *pci_gart = cpu_to_le32(page_base); pci_gart++; @@ -171,14 +177,13 @@ int drm_ati_pcigart_init(drm_device_t * dev, #endif done: - *addr = address; - *bus_addr = bus_address; + gart_info->addr = address; + gart_info->bus_addr = bus_address; return ret; } EXPORT_SYMBOL(drm_ati_pcigart_init); -int drm_ati_pcigart_cleanup(drm_device_t * dev, - unsigned long addr, dma_addr_t bus_addr) +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; @@ -190,10 +195,12 @@ int drm_ati_pcigart_cleanup(drm_device_t * dev, return 0; } - if (bus_addr) { - pci_unmap_single(dev->pdev, bus_addr, - ATI_PCIGART_TABLE_PAGES * PAGE_SIZE, - PCI_DMA_TODEVICE); + 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; @@ -204,10 +211,15 @@ int drm_ati_pcigart_cleanup(drm_device_t * dev, 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 (addr) { - drm_ati_free_pcigart_table(addr); + + 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; |