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drm/msm: change gem->vmap() to get/put

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Before we can add vmap shrinking, we really need to know which vmap'ings
are currently being used.  So switch to get/put interface.  Stubbed put
fxns for now.

Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Rob Clark
2016-05-26 16:24:35 -04:00
parent 68209390f1
commit 18f23049f6
9 changed files with 41 additions and 14 deletions
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17
drivers/gpu/drm/msm/msm_gem.c
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@@ -408,7 +408,7 @@ fail:
return ret;
}
void *msm_gem_vaddr_locked(struct drm_gem_object *obj)
void *msm_gem_get_vaddr_locked(struct drm_gem_object *obj)
{
struct msm_gem_object *msm_obj = to_msm_bo(obj);
WARN_ON(!mutex_is_locked(&obj->dev->struct_mutex));
@@ -424,15 +424,26 @@ void *msm_gem_vaddr_locked(struct drm_gem_object *obj)
return msm_obj->vaddr;
}
void *msm_gem_vaddr(struct drm_gem_object *obj)
void *msm_gem_get_vaddr(struct drm_gem_object *obj)
{
void *ret;
mutex_lock(&obj->dev->struct_mutex);
ret = msm_gem_vaddr_locked(obj);
ret = msm_gem_get_vaddr_locked(obj);
mutex_unlock(&obj->dev->struct_mutex);
return ret;
}
void msm_gem_put_vaddr_locked(struct drm_gem_object *obj)
{
WARN_ON(!mutex_is_locked(&obj->dev->struct_mutex));
/* no-op for now */
}
void msm_gem_put_vaddr(struct drm_gem_object *obj)
{
/* no-op for now */
}
/* Update madvise status, returns true if not purged, else
* false or -errno.
*/