diff options
author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2009-04-02 23:22:11 +0100 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-04-02 23:22:11 +0100 |
commit | cd02938a828f4b2098a074afb7454f106f2e8df5 (patch) | |
tree | 7b543fd6aa82a62dc3a9614c26f89daca83e77d5 /drivers/gpu/drm/ati_pcigart.c | |
parent | 9d681f3a1b27fdfc17ea251cf8d5f627dab34670 (diff) | |
parent | 172ef275444efa12d834fb9d1b1acdac92db47f7 (diff) | |
download | linux-next-cd02938a828f4b2098a074afb7454f106f2e8df5.tar.gz |
Merge branch 'smsc911x-armplatforms' of git://github.com/steveglen/linux-2.6
Diffstat (limited to 'drivers/gpu/drm/ati_pcigart.c')
-rw-r--r-- | drivers/gpu/drm/ati_pcigart.c | 40 |
1 files changed, 27 insertions, 13 deletions
diff --git a/drivers/gpu/drm/ati_pcigart.c b/drivers/gpu/drm/ati_pcigart.c index c533d0c9ec61..628eae3e9b83 100644 --- a/drivers/gpu/drm/ati_pcigart.c +++ b/drivers/gpu/drm/ati_pcigart.c @@ -77,7 +77,7 @@ int drm_ati_pcigart_cleanup(struct drm_device *dev, struct drm_ati_pcigart_info if (!entry->busaddr[i]) break; pci_unmap_page(dev->pdev, entry->busaddr[i], - PAGE_SIZE, PCI_DMA_TODEVICE); + PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); } if (gart_info->gart_table_location == DRM_ATI_GART_MAIN) @@ -95,13 +95,14 @@ EXPORT_SYMBOL(drm_ati_pcigart_cleanup); int drm_ati_pcigart_init(struct drm_device *dev, struct drm_ati_pcigart_info *gart_info) { + struct drm_local_map *map = &gart_info->mapping; struct drm_sg_mem *entry = dev->sg; void *address = NULL; unsigned long pages; - u32 *pci_gart, page_base; + u32 *pci_gart = NULL, page_base, gart_idx; dma_addr_t bus_address = 0; int i, j, ret = 0; - int max_pages; + int max_ati_pages, max_real_pages; if (!entry) { DRM_ERROR("no scatter/gather memory!\n"); @@ -117,6 +118,7 @@ int drm_ati_pcigart_init(struct drm_device *dev, struct drm_ati_pcigart_info *ga goto done; } + pci_gart = gart_info->table_handle->vaddr; address = gart_info->table_handle->vaddr; bus_address = gart_info->table_handle->busaddr; } else { @@ -127,18 +129,23 @@ int drm_ati_pcigart_init(struct drm_device *dev, struct drm_ati_pcigart_info *ga (unsigned long)address); } - pci_gart = (u32 *) address; - max_pages = (gart_info->table_size / sizeof(u32)); - pages = (entry->pages <= max_pages) - ? entry->pages : max_pages; + max_ati_pages = (gart_info->table_size / sizeof(u32)); + max_real_pages = max_ati_pages / (PAGE_SIZE / ATI_PCIGART_PAGE_SIZE); + pages = (entry->pages <= max_real_pages) + ? entry->pages : max_real_pages; - memset(pci_gart, 0, max_pages * sizeof(u32)); + if (gart_info->gart_table_location == DRM_ATI_GART_MAIN) { + memset(pci_gart, 0, max_ati_pages * sizeof(u32)); + } else { + memset_io((void __iomem *)map->handle, 0, max_ati_pages * sizeof(u32)); + } + gart_idx = 0; for (i = 0; i < pages; i++) { /* we need to support large memory configurations */ entry->busaddr[i] = pci_map_page(dev->pdev, entry->pagelist[i], - 0, PAGE_SIZE, PCI_DMA_TODEVICE); + 0, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); if (entry->busaddr[i] == 0) { DRM_ERROR("unable to map PCIGART pages!\n"); drm_ati_pcigart_cleanup(dev, gart_info); @@ -149,19 +156,26 @@ int drm_ati_pcigart_init(struct drm_device *dev, struct drm_ati_pcigart_info *ga page_base = (u32) entry->busaddr[i]; for (j = 0; j < (PAGE_SIZE / ATI_PCIGART_PAGE_SIZE); j++) { + u32 val; + switch(gart_info->gart_reg_if) { case DRM_ATI_GART_IGP: - *pci_gart = cpu_to_le32((page_base) | 0xc); + val = page_base | 0xc; break; case DRM_ATI_GART_PCIE: - *pci_gart = cpu_to_le32((page_base >> 8) | 0xc); + val = (page_base >> 8) | 0xc; break; default: case DRM_ATI_GART_PCI: - *pci_gart = cpu_to_le32(page_base); + val = page_base; break; } - pci_gart++; + if (gart_info->gart_table_location == + DRM_ATI_GART_MAIN) + pci_gart[gart_idx] = cpu_to_le32(val); + else + DRM_WRITE32(map, gart_idx * sizeof(u32), val); + gart_idx++; page_base += ATI_PCIGART_PAGE_SIZE; } } |