From eecd7fd8bf58d5d59f948d2655e41760d7cf17d9 Mon Sep 17 00:00:00 2001 From: Emil Velikov Date: Fri, 15 May 2020 10:50:51 +0100 Subject: [PATCH] drm/gem: add _locked suffix to drm_gem_object_put Vast majority of DRM (core and drivers) are struct_mutex free. As such we have only a handful of cases where the locked helper should be used. Make that stand out a little bit better. Done via the following script: __from=drm_gem_object_put __to=drm_gem_object_put_locked for __file in $(git grep --name-only --word-regexp $__from); do sed -i "s/\<$__from\>/$__to/g" $__file; done Cc: Rob Clark Cc: Sean Paul Cc: linux-arm-msm@vger.kernel.org Signed-off-by: Emil Velikov Acked-by: Sam Ravnborg Reviewed-by: Steven Price Acked-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20200515095118.2743122-12-emil.l.velikov@gmail.com --- drivers/gpu/drm/drm_gem.c | 6 +++--- drivers/gpu/drm/msm/adreno/a5xx_debugfs.c | 4 ++-- drivers/gpu/drm/msm/msm_drv.c | 2 +- drivers/gpu/drm/msm/msm_gem.c | 6 +++--- drivers/gpu/drm/msm/msm_gem_submit.c | 2 +- drivers/gpu/drm/msm/msm_gpu.c | 2 +- include/drm/drm_gem.h | 4 ++-- 7 files changed, 13 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c index 9ba4b15..d1a7f18 100644 --- a/drivers/gpu/drm/drm_gem.c +++ b/drivers/gpu/drm/drm_gem.c @@ -983,7 +983,7 @@ drm_gem_object_free(struct kref *kref) EXPORT_SYMBOL(drm_gem_object_free); /** - * drm_gem_object_put - release a GEM buffer object reference + * drm_gem_object_put_locked - release a GEM buffer object reference * @obj: GEM buffer object * * This releases a reference to @obj. Callers must hold the @@ -994,7 +994,7 @@ EXPORT_SYMBOL(drm_gem_object_free); * drm_gem_object_put_unlocked() instead. */ void -drm_gem_object_put(struct drm_gem_object *obj) +drm_gem_object_put_locked(struct drm_gem_object *obj) { if (obj) { WARN_ON(!mutex_is_locked(&obj->dev->struct_mutex)); @@ -1002,7 +1002,7 @@ drm_gem_object_put(struct drm_gem_object *obj) kref_put(&obj->refcount, drm_gem_object_free); } } -EXPORT_SYMBOL(drm_gem_object_put); +EXPORT_SYMBOL(drm_gem_object_put_locked); /** * drm_gem_vm_open - vma->ops->open implementation for GEM diff --git a/drivers/gpu/drm/msm/adreno/a5xx_debugfs.c b/drivers/gpu/drm/msm/adreno/a5xx_debugfs.c index 8cae2ca..68eddac 100644 --- a/drivers/gpu/drm/msm/adreno/a5xx_debugfs.c +++ b/drivers/gpu/drm/msm/adreno/a5xx_debugfs.c @@ -124,13 +124,13 @@ reset_set(void *data, u64 val) if (a5xx_gpu->pm4_bo) { msm_gem_unpin_iova(a5xx_gpu->pm4_bo, gpu->aspace); - drm_gem_object_put(a5xx_gpu->pm4_bo); + drm_gem_object_put_locked(a5xx_gpu->pm4_bo); a5xx_gpu->pm4_bo = NULL; } if (a5xx_gpu->pfp_bo) { msm_gem_unpin_iova(a5xx_gpu->pfp_bo, gpu->aspace); - drm_gem_object_put(a5xx_gpu->pfp_bo); + drm_gem_object_put_locked(a5xx_gpu->pfp_bo); a5xx_gpu->pfp_bo = NULL; } diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index 29295de..6baed5b 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -932,7 +932,7 @@ static int msm_ioctl_gem_madvise(struct drm_device *dev, void *data, ret = 0; } - drm_gem_object_put(obj); + drm_gem_object_put_locked(obj); unlock: mutex_unlock(&dev->struct_mutex); diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c index 5a6a79f..8696c40 100644 --- a/drivers/gpu/drm/msm/msm_gem.c +++ b/drivers/gpu/drm/msm/msm_gem.c @@ -879,7 +879,7 @@ void msm_gem_describe_objects(struct list_head *list, struct seq_file *m) } #endif -/* don't call directly! Use drm_gem_object_put() and friends */ +/* don't call directly! Use drm_gem_object_put_locked() and friends */ void msm_gem_free_object(struct drm_gem_object *obj) { struct msm_gem_object *msm_obj = to_msm_bo(obj); @@ -1183,7 +1183,7 @@ static void *_msm_gem_kernel_new(struct drm_device *dev, uint32_t size, return vaddr; err: if (locked) - drm_gem_object_put(obj); + drm_gem_object_put_locked(obj); else drm_gem_object_put_unlocked(obj); @@ -1215,7 +1215,7 @@ void msm_gem_kernel_put(struct drm_gem_object *bo, msm_gem_unpin_iova(bo, aspace); if (locked) - drm_gem_object_put(bo); + drm_gem_object_put_locked(bo); else drm_gem_object_put_unlocked(bo); } diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c index 385d496..8f450a2 100644 --- a/drivers/gpu/drm/msm/msm_gem_submit.c +++ b/drivers/gpu/drm/msm/msm_gem_submit.c @@ -387,7 +387,7 @@ static void submit_cleanup(struct msm_gem_submit *submit) struct msm_gem_object *msm_obj = submit->bos[i].obj; submit_unlock_unpin_bo(submit, i, false); list_del_init(&msm_obj->submit_entry); - drm_gem_object_put(&msm_obj->base); + drm_gem_object_put_locked(&msm_obj->base); } } diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c index 615c5cd..86a68f9 100644 --- a/drivers/gpu/drm/msm/msm_gpu.c +++ b/drivers/gpu/drm/msm/msm_gpu.c @@ -694,7 +694,7 @@ static void retire_submit(struct msm_gpu *gpu, struct msm_ringbuffer *ring, /* move to inactive: */ msm_gem_move_to_inactive(&msm_obj->base); msm_gem_unpin_iova(&msm_obj->base, submit->aspace); - drm_gem_object_put(&msm_obj->base); + drm_gem_object_put_locked(&msm_obj->base); } pm_runtime_mark_last_busy(&gpu->pdev->dev); diff --git a/include/drm/drm_gem.h b/include/drm/drm_gem.h index c3bdade..a231a2b 100644 --- a/include/drm/drm_gem.h +++ b/include/drm/drm_gem.h @@ -187,7 +187,7 @@ struct drm_gem_object { * * Reference count of this object * - * Please use drm_gem_object_get() to acquire and drm_gem_object_put() + * Please use drm_gem_object_get() to acquire and drm_gem_object_put_locked() * or drm_gem_object_put_unlocked() to release a reference to a GEM * buffer object. */ @@ -375,7 +375,7 @@ drm_gem_object_put_unlocked(struct drm_gem_object *obj) kref_put(&obj->refcount, drm_gem_object_free); } -void drm_gem_object_put(struct drm_gem_object *obj); +void drm_gem_object_put_locked(struct drm_gem_object *obj); int drm_gem_handle_create(struct drm_file *file_priv, struct drm_gem_object *obj, -- 2.7.4