diff options
Diffstat (limited to 'drivers/char/drm/ati_pcigart.c')
| -rw-r--r-- | drivers/char/drm/ati_pcigart.c | 102 |
1 files changed, 31 insertions, 71 deletions
diff --git a/drivers/char/drm/ati_pcigart.c b/drivers/char/drm/ati_pcigart.c index d352dbb..141f4df 100644 --- a/drivers/char/drm/ati_pcigart.c +++ b/drivers/char/drm/ati_pcigart.c @@ -35,42 +35,23 @@ # define ATI_PCIGART_PAGE_SIZE 4096 /**< PCI GART page size */ -static void *drm_ati_alloc_pcigart_table(int order) +static int drm_ati_alloc_pcigart_table(struct drm_device *dev, + struct drm_ati_pcigart_info *gart_info) { - unsigned long address; - struct page *page; - int i; - - DRM_DEBUG("%d order\n", order); - - address = __get_free_pages(GFP_KERNEL | __GFP_COMP, - order); - if (address == 0UL) { - return NULL; - } - - page = virt_to_page(address); - - for (i = 0; i < order; i++, page++) - SetPageReserved(page); + gart_info->table_handle = drm_pci_alloc(dev, gart_info->table_size, + PAGE_SIZE, + gart_info->table_mask); + if (gart_info->table_handle == NULL) + return -ENOMEM; - DRM_DEBUG("returning 0x%08lx\n", address); - return (void *)address; + return 0; } -static void drm_ati_free_pcigart_table(void *address, int order) +static void drm_ati_free_pcigart_table(struct drm_device *dev, + struct drm_ati_pcigart_info *gart_info) { - struct page *page; - int i; - int num_pages = 1 << order; - DRM_DEBUG("\n"); - - page = virt_to_page((unsigned long)address); - - for (i = 0; i < num_pages; i++, page++) - ClearPageReserved(page); - - free_pages((unsigned long)address, order); + drm_pci_free(dev, gart_info->table_handle); + gart_info->table_handle = NULL; } int drm_ati_pcigart_cleanup(struct drm_device *dev, struct drm_ati_pcigart_info *gart_info) @@ -78,8 +59,7 @@ int drm_ati_pcigart_cleanup(struct drm_device *dev, struct drm_ati_pcigart_info struct drm_sg_mem *entry = dev->sg; unsigned long pages; int i; - int order; - int num_pages, max_pages; + int max_pages; /* we need to support large memory configurations */ if (!entry) { @@ -87,15 +67,7 @@ int drm_ati_pcigart_cleanup(struct drm_device *dev, struct drm_ati_pcigart_info return 0; } - order = drm_order((gart_info->table_size + (PAGE_SIZE-1)) / PAGE_SIZE); - num_pages = 1 << order; - if (gart_info->bus_addr) { - if (gart_info->gart_table_location == DRM_ATI_GART_MAIN) { - pci_unmap_single(dev->pdev, gart_info->bus_addr, - num_pages * PAGE_SIZE, - PCI_DMA_TODEVICE); - } max_pages = (gart_info->table_size / sizeof(u32)); pages = (entry->pages <= max_pages) @@ -112,10 +84,9 @@ int drm_ati_pcigart_cleanup(struct drm_device *dev, struct drm_ati_pcigart_info 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, order); - gart_info->addr = NULL; + if (gart_info->gart_table_location == DRM_ATI_GART_MAIN && + gart_info->table_handle) { + drm_ati_free_pcigart_table(dev, gart_info); } return 1; @@ -127,11 +98,10 @@ int drm_ati_pcigart_init(struct drm_device *dev, struct drm_ati_pcigart_info *ga struct drm_sg_mem *entry = dev->sg; void *address = NULL; unsigned long pages; - u32 *pci_gart, page_base, bus_address = 0; + u32 *pci_gart, page_base; + dma_addr_t bus_address = 0; int i, j, ret = 0; - int order; int max_pages; - int num_pages; if (!entry) { DRM_ERROR("no scatter/gather memory!\n"); @@ -141,36 +111,20 @@ int drm_ati_pcigart_init(struct drm_device *dev, struct drm_ati_pcigart_info *ga if (gart_info->gart_table_location == DRM_ATI_GART_MAIN) { DRM_DEBUG("PCI: no table in VRAM: using normal RAM\n"); - order = drm_order((gart_info->table_size + - (PAGE_SIZE-1)) / PAGE_SIZE); - num_pages = 1 << order; - address = drm_ati_alloc_pcigart_table(order); - if (!address) { + ret = drm_ati_alloc_pcigart_table(dev, gart_info); + if (ret) { 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, - num_pages * PAGE_SIZE, - PCI_DMA_TODEVICE); - if (bus_address == 0) { - DRM_ERROR("unable to map PCIGART pages!\n"); - order = drm_order((gart_info->table_size + - (PAGE_SIZE-1)) / PAGE_SIZE); - drm_ati_free_pcigart_table(address, order); - address = NULL; - goto done; - } + address = gart_info->table_handle->vaddr; + bus_address = gart_info->table_handle->busaddr; } 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 %08LX mapped at %08lX\n", + (unsigned long long)bus_address, + (unsigned long)address); } pci_gart = (u32 *) address; @@ -214,6 +168,12 @@ int drm_ati_pcigart_init(struct drm_device *dev, struct drm_ati_pcigart_info *ga } } + if (gart_info->gart_table_location == DRM_ATI_GART_MAIN) + dma_sync_single_for_device(&dev->pdev->dev, + bus_address, + max_pages * sizeof(u32), + PCI_DMA_TODEVICE); + ret = 1; #if defined(__i386__) || defined(__x86_64__) |
