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Message-Id: <1468371785-53231-17-git-send-email-fenghua.yu@intel.com>
Date:	Tue, 12 Jul 2016 18:02:49 -0700
From:	"Fenghua Yu" <fenghua.yu@...el.com>
To:	"Thomas Gleixner" <tglx@...utronix.de>,
	"Ingo Molnar" <mingo@...e.hu>,
	"H. Peter Anvin" <h.peter.anvin@...el.com>,
	"Tony Luck" <tony.luck@...el.com>, "Tejun Heo" <tj@...nel.org>,
	"Borislav Petkov" <bp@...e.de>,
	"Stephane Eranian" <eranian@...gle.com>,
	"Peter Zijlstra" <peterz@...radead.org>,
	"Marcelo Tosatti" <mtosatti@...hat.com>,
	"David Carrillo-Cisneros" <davidcc@...gle.com>,
	"Ravi V Shankar" <ravi.v.shankar@...el.com>,
	"Vikas Shivappa" <vikas.shivappa@...ux.intel.com>,
	"Sai Prakhya" <sai.praneeth.prakhya@...el.com>
Cc:	"linux-kernel" <linux-kernel@...r.kernel.org>,
	"x86" <x86@...nel.org>, "Fenghua Yu" <fenghua.yu@...el.com>
Subject: [PATCH 16/32] Documentation, ABI: Add a document entry for cache id

From: Fenghua Yu <fenghua.yu@...el.com>

Add an ABI document entry for /sys/devices/system/cpu/cpu*/cache/index*/id.

Signed-off-by: Fenghua Yu <fenghua.yu@...el.com>
Reviewed-by: Tony Luck <tony.luck@...el.com>
Acked-by: Borislav Petkov <bp@...e.com>
---
 Documentation/ABI/testing/sysfs-devices-system-cpu | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu
index 1650133..ecd82e4 100644
--- a/Documentation/ABI/testing/sysfs-devices-system-cpu
+++ b/Documentation/ABI/testing/sysfs-devices-system-cpu
@@ -272,6 +272,23 @@ Description:	Parameters for the CPU cache attributes
 				     the modified cache line is written to main
 				     memory only when it is replaced
 
+
+What:		/sys/devices/system/cpu/cpu*/cache/index*/id
+Date:		July 2016
+Contact:	Linux kernel mailing list <linux-kernel@...r.kernel.org>
+Description:	Cache id
+
+		The id identifies a hardware cache of the system within a given
+		cache index in a set of cache indices. The "index" name is
+		simply a nomenclature from CPUID's leaf 4 which enumerates all
+		caches on the system by referring to each one as a cache index.
+		The (cache index, cache id) pair is unique for the whole
+		system.
+
+		Currently id is implemented on x86. On other platforms, id is
+		not enabled yet.
+
+
 What:		/sys/devices/system/cpu/cpuX/cpufreq/throttle_stats
 		/sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/turbo_stat
 		/sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/sub_turbo_stat
-- 
2.5.0

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