diff options
Diffstat (limited to 'include/linux/uacce.h')
| -rw-r--r-- | include/linux/uacce.h | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/include/linux/uacce.h b/include/linux/uacce.h index 48e319f40275..e290c0269944 100644 --- a/include/linux/uacce.h +++ b/include/linux/uacce.h @@ -8,6 +8,7 @@ #define UACCE_NAME "uacce" #define UACCE_MAX_REGION 2 #define UACCE_MAX_NAME_SIZE 64 +#define UACCE_MAX_ERR_THRESHOLD 65535 struct uacce_queue; struct uacce_device; @@ -30,6 +31,9 @@ struct uacce_qfile_region { * @is_q_updated: check whether the task is finished * @mmap: mmap addresses of queue to user space * @ioctl: ioctl for user space users of the queue + * @get_isolate_state: get the device state after set the isolate strategy + * @isolate_err_threshold_write: stored the isolate error threshold to the device + * @isolate_err_threshold_read: read the isolate error threshold value from the device */ struct uacce_ops { int (*get_available_instances)(struct uacce_device *uacce); @@ -43,6 +47,9 @@ struct uacce_ops { struct uacce_qfile_region *qfr); long (*ioctl)(struct uacce_queue *q, unsigned int cmd, unsigned long arg); + enum uacce_dev_state (*get_isolate_state)(struct uacce_device *uacce); + int (*isolate_err_threshold_write)(struct uacce_device *uacce, u32 num); + u32 (*isolate_err_threshold_read)(struct uacce_device *uacce); }; /** @@ -57,6 +64,11 @@ struct uacce_interface { const struct uacce_ops *ops; }; +enum uacce_dev_state { + UACCE_DEV_NORMAL, + UACCE_DEV_ISOLATE, +}; + enum uacce_q_state { UACCE_Q_ZOMBIE = 0, UACCE_Q_INIT, @@ -70,9 +82,11 @@ enum uacce_q_state { * @wait: wait queue head * @list: index into uacce queues list * @qfrs: pointer of qfr regions + * @mutex: protects queue state * @state: queue state machine * @pasid: pasid associated to the mm * @handle: iommu_sva handle returned by iommu_sva_bind_device() + * @mapping: user space mapping of the queue */ struct uacce_queue { struct uacce_device *uacce; @@ -80,9 +94,11 @@ struct uacce_queue { wait_queue_head_t wait; struct list_head list; struct uacce_qfile_region *qfrs[UACCE_MAX_REGION]; + struct mutex mutex; enum uacce_q_state state; u32 pasid; struct iommu_sva *handle; + struct address_space *mapping; }; /** @@ -97,10 +113,9 @@ struct uacce_queue { * @dev_id: id of the uacce device * @cdev: cdev of the uacce * @dev: dev of the uacce + * @mutex: protects uacce operation * @priv: private pointer of the uacce * @queues: list of queues - * @queues_lock: lock for queues list - * @inode: core vfs */ struct uacce_device { const char *algs; @@ -113,10 +128,9 @@ struct uacce_device { u32 dev_id; struct cdev *cdev; struct device dev; + struct mutex mutex; void *priv; struct list_head queues; - struct mutex queues_lock; - struct inode *inode; }; #if IS_ENABLED(CONFIG_UACCE) |