diff options
| author | Rob Clark <robdclark@chromium.org> | 2021-04-05 10:45:30 -0700 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org> | 2021-04-07 11:05:48 -0700 |
| commit | 81d4d597d4faadb1d4eb6d464362f675b5775289 (patch) | |
| tree | 7919cf834e60fd81237628f23ff0d8c41e82facf /drivers/gpu/drm/msm/msm_gem.c | |
| parent | 64fcbde772c72af81e96189d748a4bc8950b08d3 (diff) | |
drm/msm: Small msm_gem_purge() fix
Shoot down any mmap's *first* before put_pages(). Also add a WARN_ON
that the object is locked (to make it clear that this doesn't race with
msm_gem_fault()) and remove a redundant WARN_ON (since is_purgable()
already covers that case).
Fixes: 68209390f116 ("drm/msm: shrinker support")
Signed-off-by: Rob Clark <robdclark@chromium.org>
Link: https://lore.kernel.org/r/20210405174532.1441497-8-robdclark@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
Diffstat (limited to 'drivers/gpu/drm/msm/msm_gem.c')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gem.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c index 58051bc54a9c..f0cd8b9c189b 100644 --- a/drivers/gpu/drm/msm/msm_gem.c +++ b/drivers/gpu/drm/msm/msm_gem.c @@ -729,14 +729,16 @@ void msm_gem_purge(struct drm_gem_object *obj) struct drm_device *dev = obj->dev; struct msm_gem_object *msm_obj = to_msm_bo(obj); + GEM_WARN_ON(!msm_gem_is_locked(obj)); GEM_WARN_ON(!is_purgeable(msm_obj)); - GEM_WARN_ON(obj->import_attach); /* Get rid of any iommu mapping(s): */ put_iova_spaces(obj, true); msm_gem_vunmap(obj); + drm_vma_node_unmap(&obj->vma_node, dev->anon_inode->i_mapping); + put_pages(obj); put_iova_vmas(obj); @@ -744,7 +746,6 @@ void msm_gem_purge(struct drm_gem_object *obj) msm_obj->madv = __MSM_MADV_PURGED; update_inactive(msm_obj); - drm_vma_node_unmap(&obj->vma_node, dev->anon_inode->i_mapping); drm_gem_free_mmap_offset(obj); /* Our goal here is to return as much of the memory as |