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drm/msm: fb prepare/cleanup

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Atomic wants to split the prepare/pin from where we actually program the
scanout address (so that any part that can fail is done synchronously).
Add some fb/gem apis to make this easier to use from the kms parts.

Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Rob Clark
2014-11-08 09:13:37 -05:00
parent 032f8d5c41
commit 2638d90abb
3 changed files with 51 additions and 0 deletions
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11
drivers/gpu/drm/msm/msm_gem.c
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@@ -309,6 +309,7 @@ int msm_gem_get_iova_locked(struct drm_gem_object *obj, int id,
return ret;
}
/* get iova, taking a reference. Should have a matching put */
int msm_gem_get_iova(struct drm_gem_object *obj, int id, uint32_t *iova)
{
struct msm_gem_object *msm_obj = to_msm_bo(obj);
@@ -328,6 +329,16 @@ int msm_gem_get_iova(struct drm_gem_object *obj, int id, uint32_t *iova)
return ret;
}
/* get iova without taking a reference, used in places where you have
* already done a 'msm_gem_get_iova()'.
*/
uint32_t msm_gem_iova(struct drm_gem_object *obj, int id)
{
struct msm_gem_object *msm_obj = to_msm_bo(obj);
WARN_ON(!msm_obj->domain[id].iova);
return msm_obj->domain[id].iova;
}
void msm_gem_put_iova(struct drm_gem_object *obj, int id)
{
// XXX TODO ..