From de5819b994893197c71c86d21af10f85f50d6499 Mon Sep 17 00:00:00 2001 From: Jerry Snitselaar Date: Wed, 28 Sep 2022 08:48:56 -0700 Subject: dmaengine: idxd: track enabled workqueues in bitmap Now that idxd_wq_disable_cleanup() sets the workqueue state to IDXD_WQ_DISABLED, use a bitmap to track which workqueues have been enabled. This will then be used to determine which workqueues should be re-enabled when attempting a software reset to recover from a device halt state. Cc: Fenghua Yu Cc: Dave Jiang Cc: Vinod Koul Signed-off-by: Jerry Snitselaar Reviewed-by: Dave Jiang Link: https://lore.kernel.org/r/20220928154856.623545-3-jsnitsel@redhat.com Signed-off-by: Vinod Koul --- drivers/dma/idxd/device.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/dma/idxd/device.c') diff --git a/drivers/dma/idxd/device.c b/drivers/dma/idxd/device.c index 31911e255ac1..f0c7d6d348e3 100644 --- a/drivers/dma/idxd/device.c +++ b/drivers/dma/idxd/device.c @@ -196,6 +196,7 @@ int idxd_wq_enable(struct idxd_wq *wq) } wq->state = IDXD_WQ_ENABLED; + set_bit(wq->id, idxd->wq_enable_map); dev_dbg(dev, "WQ %d enabled\n", wq->id); return 0; } @@ -223,6 +224,7 @@ int idxd_wq_disable(struct idxd_wq *wq, bool reset_config) if (reset_config) idxd_wq_disable_cleanup(wq); + clear_bit(wq->id, idxd->wq_enable_map); wq->state = IDXD_WQ_DISABLED; dev_dbg(dev, "WQ %d disabled\n", wq->id); return 0; -- cgit v1.2.3