linux-kernel - [PATCH RFC LKMM 7/7] EXP tools/memory-model: Add .cfg and .cat files for s390

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Date:   Wed, 29 Aug 2018 14:10:53 -0700
From:   "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:     linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
        mingo@...nel.org
Cc:     stern@...land.harvard.edu, parri.andrea@...il.com,
        will.deacon@....com, peterz@...radead.org, boqun.feng@...il.com,
        npiggin@...il.com, dhowells@...hat.com, j.alglave@....ac.uk,
        luc.maranget@...ia.fr, akiyks@...il.com,
        "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Subject: [PATCH RFC LKMM 7/7] EXP tools/memory-model: Add .cfg and .cat files for s390

This commit adds s390.cat and s390.cfg files to allow users to check
litmus tests for s390-specific code.  Note that this change only enables
herd7 checking of C-language litmus tests.  Larger changes are required
to enable the litmus7 and klitmus7 tools to check litmus tests on real
hardare.

Suggested-by: Martin Schwidefsky <schwidefsky@...ibm.com>
Suggested-by: Christian Borntraeger <borntraeger@...ibm.com>
Signed-off-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
[ paulmck: Add fixes suggested by Alan Stern. ]
---
 tools/memory-model/s390.cat | 18 ++++++++++++++++++
 tools/memory-model/s390.cfg | 21 +++++++++++++++++++++
 2 files changed, 39 insertions(+)
 create mode 100644 tools/memory-model/s390.cat
 create mode 100644 tools/memory-model/s390.cfg

diff --git a/tools/memory-model/s390.cat b/tools/memory-model/s390.cat
new file mode 100644
index 000000000000..216bf33d3ffe
--- /dev/null
+++ b/tools/memory-model/s390.cat
@@ -0,0 +1,18 @@
+s390
+
+include "fences.cat"
+include "cos.cat"
+
+(* Fundamental coherence ordering *)
+let com = rf | co | fr
+acyclic po-loc | com as coherence
+
+(* Atomic *)
+empty rmw & (fre;coe) as atom
+
+(* Fences *)
+let mb = [M] ; fencerel(Mb) ; [M]
+
+(* TSO with multicopy atomicity (tso-mca) *)
+let po-ghb = ([R] ; po ; [M]) | ([M] ; po ; [W])
+acyclic mb | po-ghb | fr | rf | co as tso-mca
diff --git a/tools/memory-model/s390.cfg b/tools/memory-model/s390.cfg
new file mode 100644
index 000000000000..d77e05d2395c
--- /dev/null
+++ b/tools/memory-model/s390.cfg
@@ -0,0 +1,21 @@
+macros linux-kernel.def
+bell linux-kernel.bell
+model s390.cat
+graph columns
+squished true
+showevents noregs
+movelabel true
+fontsize 8
+xscale 2.0
+yscale 1.5
+arrowsize 0.8
+showinitrf false
+showfinalrf false
+showinitwrites false
+splines spline
+pad 0.1
+edgeattr hb,color,indigo
+edgeattr co,color,blue
+edgeattr mb,color,darkgreen
+edgeattr wmb,color,darkgreen
+edgeattr rmb,color,darkgreen
-- 
2.17.1