diff options
| -rw-r--r-- | drivers/dma/idxd/device.c | 6 | ||||
| -rw-r--r-- | drivers/dma/idxd/idxd.h | 32 | ||||
| -rw-r--r-- | drivers/dma/idxd/init.c | 4 | ||||
| -rw-r--r-- | drivers/dma/idxd/sysfs.c | 2 |
4 files changed, 38 insertions, 6 deletions
diff --git a/drivers/dma/idxd/device.c b/drivers/dma/idxd/device.c index 2c1e6f6daa62..670b71927db0 100644 --- a/drivers/dma/idxd/device.c +++ b/drivers/dma/idxd/device.c @@ -390,7 +390,7 @@ static void idxd_wq_disable_cleanup(struct idxd_wq *wq) clear_bit(WQ_FLAG_ATS_DISABLE, &wq->flags); memset(wq->name, 0, WQ_NAME_SIZE); wq->max_xfer_bytes = WQ_DEFAULT_MAX_XFER; - wq->max_batch_size = WQ_DEFAULT_MAX_BATCH; + idxd_wq_set_max_batch_size(idxd->data->type, wq, WQ_DEFAULT_MAX_BATCH); if (wq->opcap_bmap) bitmap_copy(wq->opcap_bmap, idxd->opcap_bmap, IDXD_MAX_OPCAP_BITS); } @@ -869,7 +869,7 @@ static int idxd_wq_config_write(struct idxd_wq *wq) /* bytes 12-15 */ wq->wqcfg->max_xfer_shift = ilog2(wq->max_xfer_bytes); - wq->wqcfg->max_batch_shift = ilog2(wq->max_batch_size); + idxd_wqcfg_set_max_batch_shift(idxd->data->type, wq->wqcfg, ilog2(wq->max_batch_size)); /* bytes 32-63 */ if (idxd->hw.wq_cap.op_config && wq->opcap_bmap) { @@ -1051,7 +1051,7 @@ static int idxd_wq_load_config(struct idxd_wq *wq) wq->priority = wq->wqcfg->priority; wq->max_xfer_bytes = 1ULL << wq->wqcfg->max_xfer_shift; - wq->max_batch_size = 1ULL << wq->wqcfg->max_batch_shift; + idxd_wq_set_max_batch_size(idxd->data->type, wq, 1U << wq->wqcfg->max_batch_shift); for (i = 0; i < WQCFG_STRIDES(idxd); i++) { wqcfg_offset = WQCFG_OFFSET(idxd, wq->id, i); 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) \ diff --git a/drivers/dma/idxd/init.c b/drivers/dma/idxd/init.c index 2b18d512cbfc..09cbf0c179ba 100644 --- a/drivers/dma/idxd/init.c +++ b/drivers/dma/idxd/init.c @@ -183,7 +183,7 @@ static int idxd_setup_wqs(struct idxd_device *idxd) init_completion(&wq->wq_dead); init_completion(&wq->wq_resurrect); wq->max_xfer_bytes = WQ_DEFAULT_MAX_XFER; - wq->max_batch_size = WQ_DEFAULT_MAX_BATCH; + idxd_wq_set_max_batch_size(idxd->data->type, wq, WQ_DEFAULT_MAX_BATCH); wq->enqcmds_retries = IDXD_ENQCMDS_RETRIES; wq->wqcfg = kzalloc_node(idxd->wqcfg_size, GFP_KERNEL, dev_to_node(dev)); if (!wq->wqcfg) { @@ -418,7 +418,7 @@ static void idxd_read_caps(struct idxd_device *idxd) idxd->max_xfer_bytes = 1ULL << idxd->hw.gen_cap.max_xfer_shift; dev_dbg(dev, "max xfer size: %llu bytes\n", idxd->max_xfer_bytes); - idxd->max_batch_size = 1U << idxd->hw.gen_cap.max_batch_shift; + idxd_set_max_batch_size(idxd->data->type, idxd, 1U << idxd->hw.gen_cap.max_batch_shift); dev_dbg(dev, "max batch size: %u\n", idxd->max_batch_size); if (idxd->hw.gen_cap.config_en) set_bit(IDXD_FLAG_CONFIGURABLE, &idxd->flags); diff --git a/drivers/dma/idxd/sysfs.c b/drivers/dma/idxd/sysfs.c index bdaccf9e0436..7269bd54554f 100644 --- a/drivers/dma/idxd/sysfs.c +++ b/drivers/dma/idxd/sysfs.c @@ -1046,7 +1046,7 @@ static ssize_t wq_max_batch_size_store(struct device *dev, struct device_attribu if (batch_size > idxd->max_batch_size) return -EINVAL; - wq->max_batch_size = (u32)batch_size; + idxd_wq_set_max_batch_size(idxd->data->type, wq, (u32)batch_size); return count; } |