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disp: msm: snapshot change for mdp driver to support multiple SIs

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This change adds support in mdp and dsi driver to support
multiple SIS.

Change-Id: I432068cea17e1784d7570a472fbadaa86695df07
Signed-off-by: Narendra Muppalla <NarendraM@codeaurora.org>
Signed-off-by: Amine Najahi <anajahi@codeaurora.org>
This commit is contained in:
Narendra Muppalla
2021-11-17 18:45:26 -08:00
committed by Bruce Hoo
parent 88c7d83030
commit 7c5d715673
9 changed files with 112 additions and 0 deletions
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21
msm/msm_gem.c
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@@ -557,6 +557,27 @@ uint64_t msm_gem_iova(struct drm_gem_object *obj,
return vma ? vma->iova : 0;
}
/*
* Unpin a iova by updating the reference counts. The memory isn't actually
* purged until something else (shrinker, mm_notifier, destroy, etc) decides
* to get rid of it
*/
void msm_gem_unpin_iova(struct drm_gem_object *obj,
struct msm_gem_address_space *aspace)
{
struct msm_gem_object *msm_obj = to_msm_bo(obj);
struct msm_gem_vma *vma;
mutex_lock(&msm_obj->lock);
vma = lookup_vma(obj, aspace);
if (!WARN_ON(!vma))
msm_gem_unmap_vma(vma->aspace, vma, msm_obj->sgt,
msm_obj->flags);
mutex_unlock(&msm_obj->lock);
}
void msm_gem_put_iova(struct drm_gem_object *obj,
struct msm_gem_address_space *aspace)
{