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Date:   Mon, 06 Jul 2020 11:22:01 -0700
From:   Dave Jiang <>
Cc:     Jing Lin <>, Tony Luck <>,
        Dan Williams <>,,,,,,,,
Subject: [PATCH v3 6/6] dmaengine: idxd: add ABI documentation for shared wq

Add the sysfs attribute bits in ABI/stable for shared wq support.

Signed-off-by: Jing Lin <>
Signed-off-by: Dave Jiang <>
Reviewed-by: Tony Luck <>
Reviewed-by: Dan Williams <>
 Documentation/ABI/stable/sysfs-driver-dma-idxd |   14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/Documentation/ABI/stable/sysfs-driver-dma-idxd b/Documentation/ABI/stable/sysfs-driver-dma-idxd
index 1af9c4175213..a336d2b2009a 100644
--- a/Documentation/ABI/stable/sysfs-driver-dma-idxd
+++ b/Documentation/ABI/stable/sysfs-driver-dma-idxd
@@ -77,6 +77,13 @@ Contact:
 Description:    The operation capability bit mask specify the operation types
 		supported by the this device.
+What:		/sys/bus/dsa/devices/dsa<m>/pasid_enabled
+Date:		Jul 5, 2020
+KernelVersion:	5.9.0
+Description:	To indicate if PASID (process address space identifier) is
+		enabled or not for this device.
 What:           /sys/bus/dsa/devices/dsa<m>/state
 Date:           Oct 25, 2019
 KernelVersion:  5.6.0
@@ -116,6 +123,13 @@ Description:    The maximum number of bandwidth tokens that may be in use at
 		one time by operations that access low bandwidth memory in the
+What:		/sys/bus/dsa/devices/wq<m>.<n>/block_on_fault
+Date:		Jul 5, 2020
+KernelVersion:	5.9.0
+Description:	To indicate block on fault is allowed or not for the work queue
+		to support on demand paging.
 What:           /sys/bus/dsa/devices/wq<m>.<n>/group_id
 Date:           Oct 25, 2019
 KernelVersion:  5.6.0

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