From: Rob Clark <robdclark@xxxxxxxxxxxx> Now that we've dropped vram carveout support, we can collapse vma allocation and initialization. This better matches how things work with drm_gpuvm. Signed-off-by: Rob Clark <robdclark@xxxxxxxxxxxx> --- drivers/gpu/drm/msm/msm_gem.c | 30 +++----------------------- drivers/gpu/drm/msm/msm_gem.h | 4 ++-- drivers/gpu/drm/msm/msm_gem_vma.c | 36 +++++++++++++------------------ 3 files changed, 20 insertions(+), 50 deletions(-) diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c index f42bfa70502a..6f11ce1d0191 100644 --- a/drivers/gpu/drm/msm/msm_gem.c +++ b/drivers/gpu/drm/msm/msm_gem.c @@ -333,23 +333,6 @@ uint64_t msm_gem_mmap_offset(struct drm_gem_object *obj) return offset; } -static struct msm_gem_vma *add_vma(struct drm_gem_object *obj, - struct msm_gem_vm *vm) -{ - struct msm_gem_object *msm_obj = to_msm_bo(obj); - struct msm_gem_vma *vma; - - msm_gem_assert_locked(obj); - - vma = msm_gem_vma_new(vm); - if (!vma) - return ERR_PTR(-ENOMEM); - - list_add_tail(&vma->list, &msm_obj->vmas); - - return vma; -} - static struct msm_gem_vma *lookup_vma(struct drm_gem_object *obj, struct msm_gem_vm *vm) { @@ -416,6 +399,7 @@ static struct msm_gem_vma *get_vma_locked(struct drm_gem_object *obj, struct msm_gem_vm *vm, u64 range_start, u64 range_end) { + struct msm_gem_object *msm_obj = to_msm_bo(obj); struct msm_gem_vma *vma; msm_gem_assert_locked(obj); @@ -423,18 +407,10 @@ static struct msm_gem_vma *get_vma_locked(struct drm_gem_object *obj, vma = lookup_vma(obj, vm); if (!vma) { - int ret; - - vma = add_vma(obj, vm); + vma = msm_gem_vma_new(vm, obj, range_start, range_end); if (IS_ERR(vma)) return vma; - - ret = msm_gem_vma_init(vma, obj->size, - range_start, range_end); - if (ret) { - del_vma(vma); - return ERR_PTR(ret); - } + list_add_tail(&vma->list, &msm_obj->vmas); } else { GEM_WARN_ON(vma->iova < range_start); GEM_WARN_ON((vma->iova + obj->size) > range_end); diff --git a/drivers/gpu/drm/msm/msm_gem.h b/drivers/gpu/drm/msm/msm_gem.h index c16b11182831..9bd78642671c 100644 --- a/drivers/gpu/drm/msm/msm_gem.h +++ b/drivers/gpu/drm/msm/msm_gem.h @@ -66,8 +66,8 @@ struct msm_gem_vma { bool mapped; }; -struct msm_gem_vma *msm_gem_vma_new(struct msm_gem_vm *vm); -int msm_gem_vma_init(struct msm_gem_vma *vma, int size, +struct msm_gem_vma * +msm_gem_vma_new(struct msm_gem_vm *vm, struct drm_gem_object *obj, u64 range_start, u64 range_end); void msm_gem_vma_purge(struct msm_gem_vma *vma); int msm_gem_vma_map(struct msm_gem_vma *vma, int prot, struct sg_table *sgt, int size); diff --git a/drivers/gpu/drm/msm/msm_gem_vma.c b/drivers/gpu/drm/msm/msm_gem_vma.c index 9419692f0cc8..6d18364f321c 100644 --- a/drivers/gpu/drm/msm/msm_gem_vma.c +++ b/drivers/gpu/drm/msm/msm_gem_vma.c @@ -106,47 +106,41 @@ void msm_gem_vma_close(struct msm_gem_vma *vma) msm_gem_vm_put(vm); } -struct msm_gem_vma *msm_gem_vma_new(struct msm_gem_vm *vm) +/* Create a new vma and allocate an iova for it */ +struct msm_gem_vma * +msm_gem_vma_new(struct msm_gem_vm *vm, struct drm_gem_object *obj, + u64 range_start, u64 range_end) { struct msm_gem_vma *vma; + int ret; vma = kzalloc(sizeof(*vma), GFP_KERNEL); if (!vma) - return NULL; + return ERR_PTR(-ENOMEM); vma->vm = vm; - return vma; -} - -/* Initialize a new vma and allocate an iova for it */ -int msm_gem_vma_init(struct msm_gem_vma *vma, int size, - u64 range_start, u64 range_end) -{ - struct msm_gem_vm *vm = vma->vm; - int ret; - - if (GEM_WARN_ON(!vm)) - return -EINVAL; - - if (GEM_WARN_ON(vma->iova)) - return -EBUSY; - spin_lock(&vm->lock); ret = drm_mm_insert_node_in_range(&vm->mm, &vma->node, - size, PAGE_SIZE, 0, + obj->size, PAGE_SIZE, 0, range_start, range_end, 0); spin_unlock(&vm->lock); if (ret) - return ret; + goto err_free_vma; vma->iova = vma->node.start; vma->mapped = false; + INIT_LIST_HEAD(&vma->list); + kref_get(&vm->kref); - return 0; + return vma; + +err_free_vma: + kfree(vma); + return ERR_PTR(ret); } struct msm_gem_vm * -- 2.47.1