diff options
Diffstat (limited to 'drivers/gpu/drm/msm/msm_gem_submit.c')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gem_submit.c | 29 |
1 files changed, 18 insertions, 11 deletions
diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c index 348f8c2be806..385d4965a8d0 100644 --- a/drivers/gpu/drm/msm/msm_gem_submit.c +++ b/drivers/gpu/drm/msm/msm_gem_submit.c @@ -4,7 +4,11 @@ * Author: Rob Clark <robdclark@gmail.com> */ +#include <linux/file.h> #include <linux/sync_file.h> +#include <linux/uaccess.h> + +#include <drm/drm_file.h> #include "msm_drv.h" #include "msm_gpu.h" @@ -26,8 +30,8 @@ static struct msm_gem_submit *submit_create(struct drm_device *dev, uint32_t nr_cmds) { struct msm_gem_submit *submit; - uint64_t sz = sizeof(*submit) + ((u64)nr_bos * sizeof(submit->bos[0])) + - ((u64)nr_cmds * sizeof(submit->cmd[0])); + uint64_t sz = struct_size(submit, bos, nr_bos) + + ((u64)nr_cmds * sizeof(submit->cmd[0])); if (sz > SIZE_MAX) return NULL; @@ -50,7 +54,6 @@ static struct msm_gem_submit *submit_create(struct drm_device *dev, INIT_LIST_HEAD(&submit->node); INIT_LIST_HEAD(&submit->bo_list); - ww_acquire_init(&submit->ticket, &reservation_ww_class); return submit; } @@ -154,7 +157,7 @@ static void submit_unlock_unpin_bo(struct msm_gem_submit *submit, msm_gem_unpin_iova(&msm_obj->base, submit->aspace); if (submit->bos[i].flags & BO_LOCKED) - ww_mutex_unlock(&msm_obj->base.resv->lock); + dma_resv_unlock(msm_obj->base.resv); if (backoff && !(submit->bos[i].flags & BO_VALID)) submit->bos[i].iova = 0; @@ -177,8 +180,8 @@ retry: contended = i; if (!(submit->bos[i].flags & BO_LOCKED)) { - ret = ww_mutex_lock_interruptible(&msm_obj->base.resv->lock, - &submit->ticket); + ret = dma_resv_lock_interruptible(msm_obj->base.resv, + &submit->ticket); if (ret) goto fail; submit->bos[i].flags |= BO_LOCKED; @@ -199,8 +202,8 @@ fail: if (ret == -EDEADLK) { struct msm_gem_object *msm_obj = submit->bos[contended].obj; /* we lost out in a seqno race, lock and retry.. */ - ret = ww_mutex_lock_slow_interruptible(&msm_obj->base.resv->lock, - &submit->ticket); + ret = dma_resv_lock_slow_interruptible(msm_obj->base.resv, + &submit->ticket); if (!ret) { submit->bos[contended].flags |= BO_LOCKED; slow_locked = contended; @@ -225,7 +228,7 @@ static int submit_fence_sync(struct msm_gem_submit *submit, bool no_implicit) * strange place to call it. OTOH this is a * convenient can-fail point to hook it in. */ - ret = reservation_object_reserve_shared(msm_obj->base.resv, + ret = dma_resv_reserve_shared(msm_obj->base.resv, 1); if (ret) return ret; @@ -386,8 +389,6 @@ static void submit_cleanup(struct msm_gem_submit *submit) list_del_init(&msm_obj->submit_entry); drm_gem_object_put(&msm_obj->base); } - - ww_acquire_fini(&submit->ticket); } int msm_ioctl_gem_submit(struct drm_device *dev, void *data, @@ -404,6 +405,7 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data, struct msm_ringbuffer *ring; int out_fence_fd = -1; struct pid *pid = get_pid(task_pid(current)); + bool has_ww_ticket = false; unsigned i; int ret, submitid; if (!gpu) @@ -485,6 +487,9 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data, if (ret) goto out; + /* copy_*_user while holding a ww ticket upsets lockdep */ + ww_acquire_init(&submit->ticket, &reservation_ww_class); + has_ww_ticket = true; ret = submit_lock_objects(submit); if (ret) goto out; @@ -584,6 +589,8 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data, out: submit_cleanup(submit); + if (has_ww_ticket) + ww_acquire_fini(&submit->ticket); if (ret) msm_gem_submit_free(submit); out_unlock: |
