diff options
| author | Jerry Snitselaar <jsnitsel@redhat.com> | 2022-09-28 08:48:56 -0700 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2022-09-29 13:02:38 +0530 |
| commit | de5819b994893197c71c86d21af10f85f50d6499 (patch) | |
| tree | e6389ac7a5b01c38f82455e92f2cd28e503b02b3 /drivers/dma/idxd/device.c | |
| parent | 8e527aac055557897d43a3d74d7970ef5cf6a8bb (diff) | |
| download | linux-de5819b994893197c71c86d21af10f85f50d6499.tar.bz2 | |
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 <fenghua.yu@intel.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Jerry Snitselaar <jsnitsel@redhat.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/20220928154856.623545-3-jsnitsel@redhat.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/idxd/device.c')
| -rw-r--r-- | drivers/dma/idxd/device.c | 2 |
1 files changed, 2 insertions, 0 deletions
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; |