diff options
Diffstat (limited to 'drivers/gpu/drm/msm/msm_gem.c')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gem.c | 65 |
1 files changed, 39 insertions, 26 deletions
diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c index 20cfd86d2b32..db1e748daa75 100644 --- a/drivers/gpu/drm/msm/msm_gem.c +++ b/drivers/gpu/drm/msm/msm_gem.c @@ -222,9 +222,7 @@ static void put_pages(struct drm_gem_object *obj) static struct page **msm_gem_pin_pages_locked(struct drm_gem_object *obj, unsigned madv) { - struct msm_drm_private *priv = obj->dev->dev_private; struct msm_gem_object *msm_obj = to_msm_bo(obj); - struct page **p; msm_gem_assert_locked(obj); @@ -234,16 +232,29 @@ static struct page **msm_gem_pin_pages_locked(struct drm_gem_object *obj, return ERR_PTR(-EBUSY); } - p = get_pages(obj); - if (IS_ERR(p)) - return p; + return get_pages(obj); +} + +/* + * Update the pin count of the object, call under lru.lock + */ +void msm_gem_pin_obj_locked(struct drm_gem_object *obj) +{ + struct msm_drm_private *priv = obj->dev->dev_private; + + msm_gem_assert_locked(obj); + + to_msm_bo(obj)->pin_count++; + drm_gem_lru_move_tail_locked(&priv->lru.pinned, obj); +} + +static void pin_obj_locked(struct drm_gem_object *obj) +{ + struct msm_drm_private *priv = obj->dev->dev_private; mutex_lock(&priv->lru.lock); - msm_obj->pin_count++; - update_lru_locked(obj); + msm_gem_pin_obj_locked(obj); mutex_unlock(&priv->lru.lock); - - return p; } struct page **msm_gem_pin_pages(struct drm_gem_object *obj) @@ -252,6 +263,8 @@ struct page **msm_gem_pin_pages(struct drm_gem_object *obj) msm_gem_lock(obj); p = msm_gem_pin_pages_locked(obj, MSM_MADV_WILLNEED); + if (!IS_ERR(p)) + pin_obj_locked(obj); msm_gem_unlock(obj); return p; @@ -463,7 +476,7 @@ int msm_gem_pin_vma_locked(struct drm_gem_object *obj, struct msm_gem_vma *vma) { struct msm_gem_object *msm_obj = to_msm_bo(obj); struct page **pages; - int ret, prot = IOMMU_READ; + int prot = IOMMU_READ; if (!(msm_obj->flags & MSM_BO_GPU_READONLY)) prot |= IOMMU_WRITE; @@ -480,11 +493,7 @@ int msm_gem_pin_vma_locked(struct drm_gem_object *obj, struct msm_gem_vma *vma) if (IS_ERR(pages)) return PTR_ERR(pages); - ret = msm_gem_vma_map(vma, prot, msm_obj->sgt, obj->size); - if (ret) - msm_gem_unpin_locked(obj); - - return ret; + return msm_gem_vma_map(vma, prot, msm_obj->sgt, obj->size); } void msm_gem_unpin_locked(struct drm_gem_object *obj) @@ -509,14 +518,11 @@ void msm_gem_unpin_locked(struct drm_gem_object *obj) */ void msm_gem_unpin_active(struct drm_gem_object *obj) { - struct msm_drm_private *priv = obj->dev->dev_private; struct msm_gem_object *msm_obj = to_msm_bo(obj); - mutex_lock(&priv->lru.lock); msm_obj->pin_count--; GEM_WARN_ON(msm_obj->pin_count < 0); update_lru_active(obj); - mutex_unlock(&priv->lru.lock); } struct msm_gem_vma *msm_gem_get_vma_locked(struct drm_gem_object *obj, @@ -539,8 +545,10 @@ static int get_and_pin_iova_range_locked(struct drm_gem_object *obj, return PTR_ERR(vma); ret = msm_gem_pin_vma_locked(obj, vma); - if (!ret) + if (!ret) { *iova = vma->iova; + pin_obj_locked(obj); + } return ret; } @@ -599,9 +607,6 @@ static int clear_iova(struct drm_gem_object *obj, if (!vma) return 0; - if (msm_gem_vma_inuse(vma)) - return -EBUSY; - msm_gem_vma_purge(vma); msm_gem_vma_close(vma); del_vma(vma); @@ -652,7 +657,6 @@ void msm_gem_unpin_iova(struct drm_gem_object *obj, msm_gem_lock(obj); vma = lookup_vma(obj, aspace); if (!GEM_WARN_ON(!vma)) { - msm_gem_vma_unpin(vma); msm_gem_unpin_locked(obj); } msm_gem_unlock(obj); @@ -703,6 +707,8 @@ static void *get_vaddr(struct drm_gem_object *obj, unsigned madv) if (IS_ERR(pages)) return ERR_CAST(pages); + pin_obj_locked(obj); + /* increment vmap_count *before* vmap() call, so shrinker can * check vmap_count (is_vunmapable()) outside of msm_obj lock. * This guarantees that we won't try to msm_gem_vunmap() this @@ -981,11 +987,10 @@ void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m, } else { name = comm = NULL; } - seq_printf(m, " [%s%s%s: aspace=%p, %08llx,%s,inuse=%d]", + seq_printf(m, " [%s%s%s: aspace=%p, %08llx,%s]", name, comm ? ":" : "", comm ? comm : "", vma->aspace, vma->iova, - vma->mapped ? "mapped" : "unmapped", - msm_gem_vma_inuse(vma)); + vma->mapped ? "mapped" : "unmapped"); kfree(comm); } @@ -1234,6 +1239,10 @@ struct drm_gem_object *msm_gem_new(struct drm_device *dev, uint32_t size, uint32 list_add_tail(&msm_obj->node, &priv->objects); mutex_unlock(&priv->obj_lock); + ret = drm_gem_create_mmap_offset(obj); + if (ret) + goto fail; + return obj; fail: @@ -1290,6 +1299,10 @@ struct drm_gem_object *msm_gem_import(struct drm_device *dev, list_add_tail(&msm_obj->node, &priv->objects); mutex_unlock(&priv->obj_lock); + ret = drm_gem_create_mmap_offset(obj); + if (ret) + goto fail; + return obj; fail: |