drm/vma: Add a driver_private member to vma_node.

This allows drivers to distinguish between different types of vma_node's. The readonly flag was unused and is thus removed. This is a temporary solution, until i915 is converted completely to use ttm for bo's. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Acked-by: Daniel Vetter <daniel@ffwll.ch> #irc Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210610070152.572423-4-thomas.hellstrom@linux.intel.com
mariux64 · Jun 11, 2021 · f425821 · f425821
1 parent 2e53d7c
commit f425821
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Showing 2 changed files with 1 addition and 10 deletions.
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
@@ -1148,15 +1148,6 @@ int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma)
 		return -EACCES;
 	}
 
-	if (node->readonly) {
-		if (vma->vm_flags & VM_WRITE) {
-			drm_gem_object_put(obj);
-			return -EINVAL;
-		}
-
-		vma->vm_flags &= ~VM_MAYWRITE;
-	}
-
 	ret = drm_gem_mmap_obj(obj, drm_vma_node_size(node) << PAGE_SHIFT,
 			       vma);
 

diff --git a/include/drm/drm_vma_manager.h b/include/drm/drm_vma_manager.h
@@ -53,7 +53,7 @@ struct drm_vma_offset_node {
 	rwlock_t vm_lock;
 	struct drm_mm_node vm_node;
 	struct rb_root vm_files;
-	bool readonly:1;
+	void *driver_private;
 };
 
 struct drm_vma_offset_manager {