From: Cornelia Huck <[email protected]>
[patch 4/14] s390: documentation update.
Fix typos and add a section about cpus in the driver-model documentation.
Signed-off-by: Cornelia Huck <[email protected]>
Signed-off-by: Martin Schwidefsky <[email protected]>
---
Documentation/s390/driver-model.txt | 21 ++++++++++++---------
1 files changed, 12 insertions(+), 9 deletions(-)
diff -urpN linux-2.6/Documentation/s390/driver-model.txt linux-2.6-patched/Documentation/s390/driver-model.txt
--- linux-2.6/Documentation/s390/driver-model.txt 2005-10-28 02:02:08.000000000 +0200
+++ linux-2.6-patched/Documentation/s390/driver-model.txt 2005-10-28 14:04:46.000000000 +0200
@@ -8,11 +8,10 @@ All devices which can be addressed by me
even if they aren't actually driven by ccws.
All ccw devices are accessed via a subchannel, this is reflected in the
-structures under root/:
+structures under devices/:
-root/
- - sys
- - legacy
+devices/
+ - system/
- css0/
- 0.0.0000/0.0.0815/
- 0.0.0001/0.0.4711/
@@ -36,7 +35,7 @@ availability: Can be 'good' or 'boxed';
online: An interface to set the device online and offline.
In the special case of the device being disconnected (see the
- notify function under 1.2), piping 0 to online will focibly delete
+ notify function under 1.2), piping 0 to online will forcibly delete
the device.
The device drivers can add entries to export per-device data and interfaces.
@@ -222,7 +221,7 @@ and are called 'chp0.<chpid>'. They have
Please note, that unlike /proc/chpids in 2.4, the channel path objects reflect
only the logical state and not the physical state, since we cannot track the
latter consistently due to lacking machine support (we don't need to be aware
-of anyway).
+of it anyway).
status - Can be 'online' or 'offline'.
Piping 'on' or 'off' sets the chpid logically online/offline.
@@ -235,12 +234,16 @@ status - Can be 'online' or 'offline'.
3. System devices
-----------------
-Note: cpus may yet be added here.
-
3.1 xpram
---------
-xpram shows up under sys/ as 'xpram'.
+xpram shows up under devices/system/ as 'xpram'.
+
+3.2 cpus
+--------
+
+For each cpu, a directory is created under devices/system/cpu/. Each cpu has an
+attribute 'online' which can be 0 or 1.
4. Other devices