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dmaengine: idxd: fix misc interrupt handler thread unmasking

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Fix unmasking of misc interrupt handler when completing normal. It exits
early and skips the unmasking with the current implementation. Fix to
unmask interrupt when exiting normally.

Fixes: bfe1d56091 ("dmaengine: idxd: Init and probe for Intel data accelerators")
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/159311256528.855.11527922406329728512.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Dave Jiang 2020-06-25 12:16:54 -07:00 • committed by Vinod Koul
parent da32b28c95
commit e3122822a7
1 changed files with 2 additions and 1 deletions
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3
drivers/dma/idxd/irq.c
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@ -141,7 +141,7 @@ irqreturn_t idxd_misc_thread(int vec, void *data)
iowrite32(cause, idxd->reg_base + IDXD_INTCAUSE_OFFSET);
if (!err)
return IRQ_HANDLED;
goto out;
gensts.bits = ioread32(idxd->reg_base + IDXD_GENSTATS_OFFSET);
if (gensts.state == IDXD_DEVICE_STATE_HALT) {
@ -162,6 +162,7 @@ irqreturn_t idxd_misc_thread(int vec, void *data)
spin_unlock_bh(&idxd->dev_lock);
}
out:
idxd_unmask_msix_vector(idxd, irq_entry->id);
return IRQ_HANDLED;
}