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-rw-r--r--drivers/gpu/drm/i915/i915_gem.c6
-rw-r--r--drivers/gpu/drm/ttm/ttm_bo.c6
-rw-r--r--include/drm/drm_vma_manager.h22
3 files changed, 24 insertions, 10 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 859e8bf..b13ffc7 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1421,11 +1421,7 @@ i915_gem_release_mmap(struct drm_i915_gem_object *obj)
if (!obj->fault_mappable)
return;
- if (obj->base.dev->dev_mapping)
- unmap_mapping_range(obj->base.dev->dev_mapping,
- (loff_t)drm_vma_node_offset_addr(&obj->base.vma_node),
- obj->base.size, 1);
-
+ drm_vma_node_unmap(&obj->base.vma_node, obj->base.dev->dev_mapping);
obj->fault_mappable = false;
}
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 9176fe5..0fa6921 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -1672,12 +1672,8 @@ bool ttm_mem_reg_is_pci(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
void ttm_bo_unmap_virtual_locked(struct ttm_buffer_object *bo)
{
struct ttm_bo_device *bdev = bo->bdev;
- loff_t offset = (loff_t) bo->addr_space_offset;
- loff_t holelen = ((loff_t) bo->mem.num_pages) << PAGE_SHIFT;
- if (!bdev->dev_mapping)
- return;
- unmap_mapping_range(bdev->dev_mapping, offset, holelen, 1);
+ drm_vma_node_unmap(&bo->vma_node, bdev->dev_mapping);
ttm_mem_io_free_vm(bo);
}
diff --git a/include/drm/drm_vma_manager.h b/include/drm/drm_vma_manager.h
index 7ee8c4b..22eedac 100644
--- a/include/drm/drm_vma_manager.h
+++ b/include/drm/drm_vma_manager.h
@@ -24,6 +24,7 @@
*/
#include <drm/drm_mm.h>
+#include <linux/mm.h>
#include <linux/module.h>
#include <linux/rbtree.h>
#include <linux/spinlock.h>
@@ -199,4 +200,25 @@ static inline __u64 drm_vma_node_offset_addr(struct drm_vma_offset_node *node)
return ((__u64)node->vm_node.start) << PAGE_SHIFT;
}
+/**
+ * drm_vma_node_unmap() - Unmap offset node
+ * @node: Offset node
+ * @file_mapping: Address space to unmap @node from
+ *
+ * Unmap all userspace mappings for a given offset node. The mappings must be
+ * associated with the @file_mapping address-space. If no offset exists or
+ * the address-space is invalid, nothing is done.
+ *
+ * This call is unlocked. The caller must guarantee that drm_vma_offset_remove()
+ * is not called on this node concurrently.
+ */
+static inline void drm_vma_node_unmap(struct drm_vma_offset_node *node,
+ struct address_space *file_mapping)
+{
+ if (file_mapping && drm_vma_node_has_offset(node))
+ unmap_mapping_range(file_mapping,
+ drm_vma_node_offset_addr(node),
+ drm_vma_node_size(node) << PAGE_SHIFT, 1);
+}
+
#endif /* __DRM_VMA_MANAGER_H__ */