Patchwork [PATCHv3,11/13] Documentation/ABI: Add node cache attributes

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Submitter Keith Busch
Date Jan. 9, 2019, 5:43 p.m.
Message ID <20190109174341.19818-12-keith.busch@intel.com>
Download mbox | patch
Permalink /patch/696105/
State New
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Comments

Keith Busch - Jan. 9, 2019, 5:43 p.m.
Add the attributes for the system memory side caches.

Signed-off-by: Keith Busch <keith.busch@intel.com>
---
 Documentation/ABI/stable/sysfs-devices-node | 34 +++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

Patch

diff --git a/Documentation/ABI/stable/sysfs-devices-node b/Documentation/ABI/stable/sysfs-devices-node
index 74cfc80cabf6..e128464691f0 100644
--- a/Documentation/ABI/stable/sysfs-devices-node
+++ b/Documentation/ABI/stable/sysfs-devices-node
@@ -142,3 +142,37 @@  Contact:	Keith Busch <keith.busch@intel.com>
 Description:
 		This node's write latency in nanosecondss available to memory
 		initiators in nodes found in this class's initiators_nodelist.
+
+What:		/sys/devices/system/node/nodeX/side_cache/indexY/associativity
+Date:		December 2018
+Contact:	Keith Busch <keith.busch@intel.com>
+Description:
+		The caches associativity: 0 for direct mapped, non-zero if
+		indexed.
+
+What:		/sys/devices/system/node/nodeX/side_cache/indexY/level
+Date:		December 2018
+Contact:	Keith Busch <keith.busch@intel.com>
+Description:
+		This cache's level in the memory hierarchy. Matches 'Y' in the
+		directory name.
+
+What:		/sys/devices/system/node/nodeX/side_cache/indexY/line_size
+Date:		December 2018
+Contact:	Keith Busch <keith.busch@intel.com>
+Description:
+		The number of bytes accessed from the next cache level on a
+		cache miss.
+
+What:		/sys/devices/system/node/nodeX/side_cache/indexY/size
+Date:		December 2018
+Contact:	Keith Busch <keith.busch@intel.com>
+Description:
+		The size of this memory side cache in bytes.
+
+What:		/sys/devices/system/node/nodeX/side_cache/indexY/write_policy
+Date:		December 2018
+Contact:	Keith Busch <keith.busch@intel.com>
+Description:
+		The cache write policy: 0 for write-back, 1 for write-through,
+		2 for other or unknown.