diff options
Diffstat (limited to 'drivers/gpu/drm/vc4/vc4_drv.h')
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_drv.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_drv.h b/drivers/gpu/drm/vc4/vc4_drv.h index 87f2d8e5c134..9c0d380c96f2 100644 --- a/drivers/gpu/drm/vc4/vc4_drv.h +++ b/drivers/gpu/drm/vc4/vc4_drv.h @@ -74,6 +74,19 @@ struct vc4_dev { /* Protects bo_cache and bo_labels. */ struct mutex bo_lock; + /* Purgeable BO pool. All BOs in this pool can have their memory + * reclaimed if the driver is unable to allocate new BOs. We also + * keep stats related to the purge mechanism here. + */ + struct { + struct list_head list; + unsigned int num; + size_t size; + unsigned int purged_num; + size_t purged_size; + struct mutex lock; + } purgeable; + uint64_t dma_fence_context; /* Sequence number for the last job queued in bin_job_list. @@ -192,6 +205,16 @@ struct vc4_bo { * for user-allocated labels. */ int label; + + /* Count the number of active users. This is needed to determine + * whether we can move the BO to the purgeable list or not (when the BO + * is used by the GPU or the display engine we can't purge it). + */ + refcount_t usecnt; + + /* Store purgeable/purged state here */ + u32 madv; + struct mutex madv_lock; }; static inline struct vc4_bo * @@ -503,6 +526,7 @@ int vc4_get_hang_state_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); int vc4_label_bo_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); +int vc4_fault(struct vm_fault *vmf); int vc4_mmap(struct file *filp, struct vm_area_struct *vma); struct reservation_object *vc4_prime_res_obj(struct drm_gem_object *obj); int vc4_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma); @@ -513,6 +537,10 @@ void *vc4_prime_vmap(struct drm_gem_object *obj); int vc4_bo_cache_init(struct drm_device *dev); void vc4_bo_cache_destroy(struct drm_device *dev); int vc4_bo_stats_debugfs(struct seq_file *m, void *arg); +int vc4_bo_inc_usecnt(struct vc4_bo *bo); +void vc4_bo_dec_usecnt(struct vc4_bo *bo); +void vc4_bo_add_to_purgeable_pool(struct vc4_bo *bo); +void vc4_bo_remove_from_purgeable_pool(struct vc4_bo *bo); /* vc4_crtc.c */ extern struct platform_driver vc4_crtc_driver; @@ -557,6 +585,8 @@ void vc4_job_handle_completed(struct vc4_dev *vc4); int vc4_queue_seqno_cb(struct drm_device *dev, struct vc4_seqno_cb *cb, uint64_t seqno, void (*func)(struct vc4_seqno_cb *cb)); +int vc4_gem_madvise_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); /* vc4_hdmi.c */ extern struct platform_driver vc4_hdmi_driver; |