From 5b0c68c473a131c2acb21abad44b0047b200e185 Mon Sep 17 00:00:00 2001 From: Dave Jiang Date: Tue, 20 Apr 2021 11:46:51 -0700 Subject: dmaengine: idxd: support reporting of halt interrupt Unmask the halt error interrupt so it gets reported to the interrupt handler. When halt state interrupt is received, quiesce the kernel WQs and unmap the portals to stop submission. Signed-off-by: Dave Jiang Link: https://lore.kernel.org/r/161894441167.3202472.9485946398140619501.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul --- drivers/dma/idxd/irq.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/dma/idxd/irq.c') diff --git a/drivers/dma/idxd/irq.c b/drivers/dma/idxd/irq.c index fc0781e3f36d..43eea5c9cbd4 100644 --- a/drivers/dma/idxd/irq.c +++ b/drivers/dma/idxd/irq.c @@ -202,6 +202,8 @@ static int process_misc_interrupts(struct idxd_device *idxd, u32 cause) queue_work(idxd->wq, &idxd->work); } else { spin_lock_bh(&idxd->dev_lock); + idxd_wqs_quiesce(idxd); + idxd_wqs_unmap_portal(idxd); idxd_device_wqs_clear_state(idxd); dev_err(&idxd->pdev->dev, "idxd halted, need %s.\n", -- cgit v1.2.3