From: Thomas Hellstrom Date: Thu, 8 Feb 2007 05:14:05 +0000 (+1100) Subject: drm: Allow for 44 bit user-tokens (or drm_file offsets) X-Git-Tag: v2.6.21-rc2~42^2~4^2 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=1545085a28f226b59c243f88b82ea25393b0d63f;p=linux-2.6-omap-h63xx.git drm: Allow for 44 bit user-tokens (or drm_file offsets) --- diff --git a/drivers/char/drm/drm_bufs.c b/drivers/char/drm/drm_bufs.c index d917c8cb8a3..a6828cc14e5 100644 --- a/drivers/char/drm/drm_bufs.c +++ b/drivers/char/drm/drm_bufs.c @@ -79,14 +79,14 @@ static int drm_map_handle(drm_device_t *dev, drm_hash_item_t *hash, if (!use_hashed_handle) { int ret; - hash->key = user_token; + hash->key = user_token >> PAGE_SHIFT; ret = drm_ht_insert_item(&dev->map_hash, hash); if (ret != -EINVAL) return ret; } return drm_ht_just_insert_please(&dev->map_hash, hash, user_token, 32 - PAGE_SHIFT - 3, - PAGE_SHIFT, DRM_MAP_HASH_OFFSET); + 0, DRM_MAP_HASH_OFFSET >> PAGE_SHIFT); } /** @@ -262,7 +262,7 @@ static int drm_addmap_core(drm_device_t * dev, unsigned int offset, return ret; } - list->user_token = list->hash.key; + list->user_token = list->hash.key << PAGE_SHIFT; mutex_unlock(&dev->struct_mutex); *maplist = list; @@ -347,7 +347,8 @@ int drm_rmmap_locked(drm_device_t *dev, drm_local_map_t *map) if (r_list->map == map) { list_del(list); - drm_ht_remove_key(&dev->map_hash, r_list->user_token); + drm_ht_remove_key(&dev->map_hash, + r_list->user_token >> PAGE_SHIFT); drm_free(list, sizeof(*list), DRM_MEM_MAPS); break; } diff --git a/drivers/char/drm/drm_proc.c b/drivers/char/drm/drm_proc.c index 62d5fe15f04..7fd0da71214 100644 --- a/drivers/char/drm/drm_proc.c +++ b/drivers/char/drm/drm_proc.c @@ -500,7 +500,7 @@ static int drm__vma_info(char *buf, char **start, off_t offset, int request, for (pt = dev->vmalist; pt; pt = pt->next) { if (!(vma = pt->vma)) continue; - DRM_PROC_PRINT("\n%5d 0x%08lx-0x%08lx %c%c%c%c%c%c 0x%08lx", + DRM_PROC_PRINT("\n%5d 0x%08lx-0x%08lx %c%c%c%c%c%c 0x%08lx000", pt->pid, vma->vm_start, vma->vm_end, @@ -510,7 +510,7 @@ static int drm__vma_info(char *buf, char **start, off_t offset, int request, vma->vm_flags & VM_MAYSHARE ? 's' : 'p', vma->vm_flags & VM_LOCKED ? 'l' : '-', vma->vm_flags & VM_IO ? 'i' : '-', - vma->vm_pgoff << PAGE_SHIFT); + vma->vm_pgoff); #if defined(__i386__) pgprot = pgprot_val(vma->vm_page_prot); diff --git a/drivers/char/drm/drm_vm.c b/drivers/char/drm/drm_vm.c index 4e480583a27..54a63284895 100644 --- a/drivers/char/drm/drm_vm.c +++ b/drivers/char/drm/drm_vm.c @@ -70,7 +70,7 @@ static __inline__ struct page *drm_do_vm_nopage(struct vm_area_struct *vma, if (!dev->agp || !dev->agp->cant_use_aperture) goto vm_nopage_error; - if (drm_ht_find_item(&dev->map_hash, vma->vm_pgoff << PAGE_SHIFT, &hash)) + if (drm_ht_find_item(&dev->map_hash, vma->vm_pgoff, &hash)) goto vm_nopage_error; r_list = drm_hash_entry(hash, drm_map_list_t, hash); @@ -463,8 +463,8 @@ static int drm_mmap_dma(struct file *filp, struct vm_area_struct *vma) lock_kernel(); dev = priv->head->dev; dma = dev->dma; - DRM_DEBUG("start = 0x%lx, end = 0x%lx, offset = 0x%lx\n", - vma->vm_start, vma->vm_end, vma->vm_pgoff << PAGE_SHIFT); + DRM_DEBUG("start = 0x%lx, end = 0x%lx, page offset = 0x%lx\n", + vma->vm_start, vma->vm_end, vma->vm_pgoff); /* Length must match exact page count */ if (!dma || (length >> PAGE_SHIFT) != dma->page_count) { @@ -537,8 +537,8 @@ int drm_mmap(struct file *filp, struct vm_area_struct *vma) unsigned long offset = 0; drm_hash_item_t *hash; - DRM_DEBUG("start = 0x%lx, end = 0x%lx, offset = 0x%lx\n", - vma->vm_start, vma->vm_end, vma->vm_pgoff << PAGE_SHIFT); + DRM_DEBUG("start = 0x%lx, end = 0x%lx, page offset = 0x%lx\n", + vma->vm_start, vma->vm_end, vma->vm_pgoff); if (!priv->authenticated) return -EACCES; @@ -547,7 +547,7 @@ int drm_mmap(struct file *filp, struct vm_area_struct *vma) * the AGP mapped at physical address 0 * --BenH. */ - if (!(vma->vm_pgoff << PAGE_SHIFT) + if (!vma->vm_pgoff #if __OS_HAS_AGP && (!dev->agp || dev->agp->agp_info.device->vendor != PCI_VENDOR_ID_APPLE) @@ -555,7 +555,7 @@ int drm_mmap(struct file *filp, struct vm_area_struct *vma) ) return drm_mmap_dma(filp, vma); - if (drm_ht_find_item(&dev->map_hash, vma->vm_pgoff << PAGE_SHIFT, &hash)) { + if (drm_ht_find_item(&dev->map_hash, vma->vm_pgoff, &hash)) { DRM_ERROR("Could not find map\n"); return -EINVAL; }