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drm/gem: convert to new unified vma manager

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Use the new vma manager instead of the old hashtable. Also convert all
drivers to use the new convenience helpers. This drops all the
(map_list.hash.key << PAGE_SHIFT) non-sense.

Locking and access-management is exactly the same as before with an
additional lock inside of the vma-manager, which strictly wouldn't be
needed for gem.

v2:
 - rebase on drm-next
 - init nodes via drm_vma_node_reset() in drm_gem.c
v3:
 - fix tegra
v4:
 - remove duplicate if (drm_vma_node_has_offset()) checks
 - inline now trivial drm_vma_node_offset_addr() calls
v5:
 - skip node-reset on gem-init due to kzalloc()
 - do not allow mapping gem-objects with offsets (backwards compat)
 - remove unneccessary casts

Cc: Inki Dae <inki.dae@samsung.com>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Acked-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@gmail.com>
This commit is contained in:
David Herrmann
2013-07-24 21:07:52 +02:00
committed by Dave Airlie
parent fe3078fa5c
commit 0de23977cf
11 changed files with 62 additions and 186 deletions
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13
drivers/gpu/drm/udl/udl_gem.c
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@@ -223,8 +223,7 @@ void udl_gem_free_object(struct drm_gem_object *gem_obj)
if (obj->pages)
udl_gem_put_pages(obj);
if (gem_obj->map_list.map)
drm_gem_free_mmap_offset(gem_obj);
drm_gem_free_mmap_offset(gem_obj);
}
/* the dumb interface doesn't work with the GEM straight MMAP
@@ -247,13 +246,11 @@ int udl_gem_mmap(struct drm_file *file, struct drm_device *dev,
ret = udl_gem_get_pages(gobj, GFP_KERNEL);
if (ret)
goto out;
if (!gobj->base.map_list.map) {
ret = drm_gem_create_mmap_offset(obj);
if (ret)
goto out;
}
ret = drm_gem_create_mmap_offset(obj);
if (ret)
goto out;
*offset = (u64)gobj->base.map_list.hash.key << PAGE_SHIFT;
*offset = drm_vma_node_offset_addr(&gobj->base.vma_node);
out:
drm_gem_object_unreference(&gobj->base);