I would like to ask the same thing, since this there are some patches that
improves ppc64el arch.
These are the important patches that made 2.18 version, and are important for
ppc64el:
* 2ede65360abc62cb0cef72d67fa456d69d5516f4
* 954c051dbb8580b8b22f2fb32dbefd724fe491a2
* e5f15ae459fbe880efbf20e25252e7310af363ab
There is also a missing patch that improves device tree reading, but it is
still not accepted upstream. Not sure if you would accept it.
>From 2c38e1c6a9dd4e35685be5ba7f64e51fd0e31c1a Mon Sep 17 00:00:00 2001
From: Jeremy Kerr <[email protected]>
Date: Mon, 8 Jun 2015 12:35:00 +0800
Subject: [PATCH] lshw: Parse OPAL firmware properties from the device
tree
OPAL-firmware-based Power machines expose a firmware device tree node in
/ibm,opal, containing version information and available interfaces.
This change adds a function to parse information about OPAL firmware and
add it to lshw's machine information. With a current OpenPower machine,
we get something like this:
*-firmware
product: OPAL firmware
physical id: 1
version: skiboot-5.0.2
capabilities: opal-v2 opal-v3 prd ipmi
Signed-off-by: Jeremy Kerr <[email protected]>
---
src/core/device-tree.cc | 59
+++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 59 insertions(+)
diff --git a/src/core/device-tree.cc b/src/core/device-tree.cc
index 8908fd1..73a98a9 100644
--- a/src/core/device-tree.cc
+++ b/src/core/device-tree.cc
@@ -168,6 +168,64 @@ static void scan_devtree_bootrom(hwNode & core)
}
}
+static void scan_devtree_opal_firmware(hwNode & core)
+{
+ vector < string >::iterator it;
+ vector < string > compat;
+ struct dirent **namelist;
+ int i, n;
+
+ if (!exists(DEVICETREE "/ibm,opal"))
+ return;
+
+ hwNode opal("firmware", hw::memory);
+
+ opal.setProduct("OPAL firmware");
+ if (exists(DEVICETREE "/ibm,opal/firmware/version"))
+ opal.setVersion(get_string(DEVICETREE
"/ibm,opal/firmware/version"));
+
+ compat = get_strings(DEVICETREE "/ibm,opal/compatible");
+
+ for (it = compat.begin(); it != compat.end(); ++it) {
+ if (matches(*it, "^ibm,opal-v2"))
+ opal.addCapability("opal-v2");
+ if (matches(*it, "^ibm,opal-v3"))
+ opal.addCapability("opal-v3");
+ }
+
+ /* collect compatible strings from firmware sub-nodes */
+ compat.clear();
+ pushd(DEVICETREE "/ibm,opal");
+ n = scandir(".", &namelist, selectdir, alphasort);
+ popd();
+ for (i = 0; i < n; i++) {
+ string path = string(DEVICETREE "/ibm,opal/")
+ + string(namelist[i]->d_name)
+ + string("/compatible");
+
+ vector < string > tmp = get_strings(path);
+ compat.insert(compat.end(), tmp.begin(), tmp.end());
+
+ free(namelist[i]);
+ }
+
+ if (n >= 0)
+ free(namelist);
+
+ /* check our collected compatible strings for known capabilities */
+ for (it = compat.begin(); it != compat.end(); ++it) {
+
+ if (*it == "ibm,opal-prd")
+ opal.addCapability("prd");
+
+ if (*it == "ibm,opal-ipmi")
+ opal.addCapability("ipmi");
+ }
+
+ opal.claim();
+ core.addChild(opal);
+}
+
static string cpubusinfo(int cpu)
{
@@ -696,6 +754,7 @@ bool scan_device_tree(hwNode & n)
scan_devtree_root(*core);
scan_devtree_memory_powernv(*core);
scan_devtree_cpu(*core);
+ scan_devtree_opal_firmware(*core);
n.addCapability("powernv", "Non-virtualized");
n.addCapability("opal", "OPAL firmware");
}
--
1.9.1
