From 7c7a49958286fee9a2b18baffc9c626304a00843 Mon Sep 17 00:00:00 2001 From: James Morse <james.morse@arm.com> Date: Fri, 7 Jun 2019 16:14:07 +0100 Subject: [PATCH] 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@arm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net> --- 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 066f94e534180..638cd987937d5 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) ------------------------------------------ -- GitLab