From 23084545dbb0ac0d1f0acad915bdeed7bd5f48cd Mon Sep 17 00:00:00 2001 From: Dave Jiang Date: Mon, 11 Apr 2022 15:11:16 -0700 Subject: [PATCH] dmaengine: idxd: set max_xfer and max_batch for RO device Load the max_xfer_size and max_batch_size values from the values read from registers to the shadow variables. This will allow the read-only device to display the correct values for the sysfs attributes. Signed-off-by: Dave Jiang Link: https://lore.kernel.org/r/164971507673.2201761.11244446608988838897.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul --- drivers/dma/idxd/device.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/dma/idxd/device.c b/drivers/dma/idxd/device.c index 2903f8b..4f5c236 100644 --- a/drivers/dma/idxd/device.c +++ b/drivers/dma/idxd/device.c @@ -1031,6 +1031,9 @@ 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; + for (i = 0; i < WQCFG_STRIDES(idxd); i++) { wqcfg_offset = WQCFG_OFFSET(idxd, wq->id, i); dev_dbg(dev, "WQ[%d][%d][%#x]: %#x\n", wq->id, i, wqcfg_offset, wq->wqcfg->bits[i]); -- 2.7.4