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path: root/drivers/dma/idxd/idxd.h
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Diffstat (limited to 'drivers/dma/idxd/idxd.h')
-rw-r--r--drivers/dma/idxd/idxd.h32
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/dma/idxd/idxd.h b/drivers/dma/idxd/idxd.h
index 1196ab342f01..7ced8d283d98 100644
--- a/drivers/dma/idxd/idxd.h
+++ b/drivers/dma/idxd/idxd.h
@@ -548,6 +548,38 @@ static inline int idxd_wq_refcount(struct idxd_wq *wq)
return wq->client_count;
};
+/*
+ * Intel IAA does not support batch processing.
+ * The max batch size of device, max batch size of wq and
+ * max batch shift of wqcfg should be always 0 on IAA.
+ */
+static inline void idxd_set_max_batch_size(int idxd_type, struct idxd_device *idxd,
+ u32 max_batch_size)
+{
+ if (idxd_type == IDXD_TYPE_IAX)
+ idxd->max_batch_size = 0;
+ else
+ idxd->max_batch_size = max_batch_size;
+}
+
+static inline void idxd_wq_set_max_batch_size(int idxd_type, struct idxd_wq *wq,
+ u32 max_batch_size)
+{
+ if (idxd_type == IDXD_TYPE_IAX)
+ wq->max_batch_size = 0;
+ else
+ wq->max_batch_size = max_batch_size;
+}
+
+static inline void idxd_wqcfg_set_max_batch_shift(int idxd_type, union wqcfg *wqcfg,
+ u32 max_batch_shift)
+{
+ if (idxd_type == IDXD_TYPE_IAX)
+ wqcfg->max_batch_shift = 0;
+ else
+ wqcfg->max_batch_shift = max_batch_shift;
+}
+
int __must_check __idxd_driver_register(struct idxd_device_driver *idxd_drv,
struct module *module, const char *mod_name);
#define idxd_driver_register(driver) \