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authorDavid Herrmann <dh.herrmann@gmail.com>2013-07-24 23:08:53 +0400
committerDave Airlie <airlied@gmail.com>2013-07-25 14:47:07 +0400
commit72525b3f333de54fa0c42ef87f27861e41478f1e (patch)
tree33f5a2435f0b15396702aa0a0ee36e8b73b5a897 /drivers/gpu/drm/radeon/radeon_object.h
parent0de23977cfeb5b357ec884ba15417ae118ff9e9b (diff)
downloadlinux-72525b3f333de54fa0c42ef87f27861e41478f1e.tar.xz
drm/ttm: convert to unified vma offset manager
Use the new vma-manager infrastructure. This doesn't change any implementation details as the vma-offset-manager is nearly copied 1-to-1 from TTM. The vm_lock is moved into the offset manager so we can drop it from TTM. During lookup, we use the vma locking helpers to take a reference to the found object. In all other scenarios, locking stays the same as before. We always guarantee that drm_vma_offset_remove() is called only during destruction. Hence, helpers like drm_vma_node_offset_addr() are always safe as long as the node has a valid offset. This also drops the addr_space_offset member as it is a copy of vm_start in vma_node objects. Use the accessor functions instead. v4: - remove vm_lock - use drm_vma_offset_lock_lookup() to protect lookup (instead of vm_lock) Cc: Dave Airlie <airlied@redhat.com> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com> Cc: Martin Peres <martin.peres@labri.fr> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: David Herrmann <dh.herrmann@gmail.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_object.h')
-rw-r--r--drivers/gpu/drm/radeon/radeon_object.h5
1 files changed, 1 insertions, 4 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_object.h b/drivers/gpu/drm/radeon/radeon_object.h
index 49c82c480013..209b11150263 100644
--- a/drivers/gpu/drm/radeon/radeon_object.h
+++ b/drivers/gpu/drm/radeon/radeon_object.h
@@ -113,13 +113,10 @@ static inline unsigned radeon_bo_gpu_page_alignment(struct radeon_bo *bo)
* @bo: radeon object for which we query the offset
*
* Returns mmap offset of the object.
- *
- * Note: addr_space_offset is constant after ttm bo init thus isn't protected
- * by any lock.
*/
static inline u64 radeon_bo_mmap_offset(struct radeon_bo *bo)
{
- return bo->tbo.addr_space_offset;
+ return drm_vma_node_offset_addr(&bo->tbo.vma_node);
}
extern int radeon_bo_wait(struct radeon_bo *bo, u32 *mem_type,