diff options
Diffstat (limited to 'linux/drm_vm.h')
| -rw-r--r-- | linux/drm_vm.h | 52 |
1 files changed, 38 insertions, 14 deletions
diff --git a/linux/drm_vm.h b/linux/drm_vm.h index f01d2081..ae50eda8 100644 --- a/linux/drm_vm.h +++ b/linux/drm_vm.h @@ -56,11 +56,18 @@ struct vm_operations_struct DRM(vm_sg_ops) = { close: DRM(vm_close), }; +#if LINUX_VERSION_CODE < 0x020317 +unsigned long DRM(vm_nopage)(struct vm_area_struct *vma, + unsigned long address, + int write_access) +#else + /* Return type changed in 2.3.23 */ struct page *DRM(vm_nopage)(struct vm_area_struct *vma, unsigned long address, int write_access) +#endif { -#if defined(__alpha__) && __REALLY_HAVE_AGP +#if __REALLY_HAVE_AGP drm_file_t *priv = vma->vm_file->private_data; drm_device_t *dev = priv->dev; drm_map_t *map = NULL; @@ -70,6 +77,9 @@ struct page *DRM(vm_nopage)(struct vm_area_struct *vma, /* * Find the right map */ + + if(!dev->agp->cant_use_aperture) goto vm_nopage_error; + list_for_each(list, &dev->maplist->head) { r_list = (drm_map_list_t *)list; map = r_list->map; @@ -83,10 +93,12 @@ struct page *DRM(vm_nopage)(struct vm_area_struct *vma, struct drm_agp_mem *agpmem; struct page *page; +#if __alpha__ /* - * Make it a bus-relative address + * Adjust to a bus-relative address */ baddr -= dev->hose->mem_space->start; +#endif /* * It's AGP memory - find the real physical page to map @@ -97,35 +109,47 @@ struct page *DRM(vm_nopage)(struct vm_area_struct *vma, break; } - if (!agpmem) { - /* - * Oops - no memory found - */ - return NOPAGE_SIGBUS; /* couldn't find it */ - } + if (!agpmem) goto vm_nopage_error; /* * Get the page, inc the use count, and return it */ offset = (baddr - agpmem->bound) >> PAGE_SHIFT; - agpmem->memory->memory[offset] &= ~1UL; /* HACK */ + agpmem->memory->memory[offset] &= dev->agp->page_mask; page = virt_to_page(__va(agpmem->memory->memory[offset])); -#if 0 - DRM_ERROR("baddr = 0x%lx page = 0x%lx, offset = 0x%lx\n", - baddr, __va(agpmem->memory->memory[offset]), offset); -#endif get_page(page); + + DRM_DEBUG("baddr = 0x%lx page = 0x%p, offset = 0x%lx\n", + baddr, __va(agpmem->memory->memory[offset]), offset); + +#if LINUX_VERSION_CODE < 0x020317 + return page_address(page); +#else return page; - } #endif + } +vm_nopage_error: +#endif /* __REALLY_HAVE_AGP */ + return NOPAGE_SIGBUS; /* Disallow mremap */ } +#if LINUX_VERSION_CODE < 0x020317 +unsigned long DRM(vm_shm_nopage)(struct vm_area_struct *vma, + unsigned long address, + int write_access) +#else + /* Return type changed in 2.3.23 */ struct page *DRM(vm_shm_nopage)(struct vm_area_struct *vma, unsigned long address, int write_access) +#endif { +#if LINUX_VERSION_CODE >= 0x020300 drm_map_t *map = (drm_map_t *)vma->vm_private_data; +#else + drm_map_t *map = (drm_map_t *)vma->vm_pte; +#endif unsigned long offset; unsigned long i; pgd_t *pgd; |