linux-kernel - [PATCH 2/4] Documentation: x86: Remove cdpl2 unspported statement and fix capitalisation

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Message-Id: <20190607151409.15476-3-james.morse@arm.com>
Date:   Fri,  7 Jun 2019 16:14:07 +0100
From:   James Morse <james.morse@....com>
To:     linux-doc@...r.kernel.org, x86@...nel.org
Cc:     Jonathan Corbet <corbet@....net>,
        Reinette Chatre <reinette.chatre@...el.com>,
        Fenghua Yu <fenghua.yu@...el.com>,
        Babu Moger <Babu.Moger@....com>, linux-kernel@...r.kernel.org,
        James Morse <james.morse@....com>
Subject: [PATCH 2/4] Documentation: x86: Remove cdpl2 unspported statement and fix capitalisation

"L2 cache does not support code and data prioritization". This isn't
true, elsewhere the document says it can be enabled with the cdpl2
mount option.

While we're here, these sample strings have lower-case code/data,
which isn't how the kernel exports them.

Signed-off-by: James Morse <james.morse@....com>
---
 Documentation/x86/resctrl_ui.rst | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/Documentation/x86/resctrl_ui.rst b/Documentation/x86/resctrl_ui.rst
index 066f94e53418..638cd987937d 100644
--- a/Documentation/x86/resctrl_ui.rst
+++ b/Documentation/x86/resctrl_ui.rst
@@ -418,16 +418,22 @@ L3 schemata file details (CDP enabled via mount option to resctrl)
 When CDP is enabled L3 control is split into two separate resources
 so you can specify independent masks for code and data like this::
 
-	L3data:<cache_id0>=<cbm>;<cache_id1>=<cbm>;...
-	L3code:<cache_id0>=<cbm>;<cache_id1>=<cbm>;...
+	L3DATA:<cache_id0>=<cbm>;<cache_id1>=<cbm>;...
+	L3CODE:<cache_id0>=<cbm>;<cache_id1>=<cbm>;...
 
 L2 schemata file details
 ------------------------
-L2 cache does not support code and data prioritization, so the
-schemata format is always::
+CDP is supported at L2 using the 'cdpl2' mount option. The schemata
+format is either::
 
 	L2:<cache_id0>=<cbm>;<cache_id1>=<cbm>;...
 
+or
+
+	L2DATA:<cache_id0>=<cbm>;<cache_id1>=<cbm>;...
+	L2CODE:<cache_id0>=<cbm>;<cache_id1>=<cbm>;...
+
+
 Memory bandwidth Allocation (default mode)
 ------------------------------------------
 
-- 
2.20.1