From: Puranjay Mohan <puranjay@kernel.org>
To: Alan Stern <stern@rowland.harvard.edu>,
Andrea Parri <parri.andrea@gmail.com>,
Will Deacon <will@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Boqun Feng <boqun.feng@gmail.com>,
Nicholas Piggin <npiggin@gmail.com>,
David Howells <dhowells@redhat.com>,
Jade Alglave <j.alglave@ucl.ac.uk>,
Luc Maranget <luc.maranget@inria.fr>,
"Paul E. McKenney" <paulmck@kernel.org>,
Akira Yokosawa <akiyks@gmail.com>,
Daniel Lustig <dlustig@nvidia.com>,
Joel Fernandes <joel@joelfernandes.org>,
linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org
Cc: puranjay12@gmail.com
Subject: [PATCH] tools/memory-model: Add atomic_and()/or()/xor() and add_negative
Date: Wed, 8 May 2024 14:34:00 +0000 [thread overview]
Message-ID: <20240508143400.36256-1-puranjay@kernel.org> (raw)
Pull-849[1] added the support of '&', '|', and '^' to the herd7 tool's
atomics operations.
Use these in linux-kernel.def to implement atomic_and()/or()/xor() with
all their ordering variants.
atomic_add_negative() is already available so add its acquire, release,
and relaxed ordering variants.
[1] https://github.com/herd/herdtools7/pull/849
Signed-off-by: Puranjay Mohan <puranjay@kernel.org>
---
tools/memory-model/linux-kernel.def | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/tools/memory-model/linux-kernel.def b/tools/memory-model/linux-kernel.def
index 88a39601f525..d1f11930ec51 100644
--- a/tools/memory-model/linux-kernel.def
+++ b/tools/memory-model/linux-kernel.def
@@ -65,6 +65,9 @@ atomic_set_release(X,V) { smp_store_release(X,V); }
atomic_add(V,X) { __atomic_op(X,+,V); }
atomic_sub(V,X) { __atomic_op(X,-,V); }
+atomic_and(V,X) { __atomic_op(X,&,V); }
+atomic_or(V,X) { __atomic_op(X,|,V); }
+atomic_xor(V,X) { __atomic_op(X,^,V); }
atomic_inc(X) { __atomic_op(X,+,1); }
atomic_dec(X) { __atomic_op(X,-,1); }
@@ -77,6 +80,21 @@ atomic_fetch_add_relaxed(V,X) __atomic_fetch_op{once}(X,+,V)
atomic_fetch_add_acquire(V,X) __atomic_fetch_op{acquire}(X,+,V)
atomic_fetch_add_release(V,X) __atomic_fetch_op{release}(X,+,V)
+atomic_fetch_and(V,X) __atomic_fetch_op{mb}(X,&,V)
+atomic_fetch_and_relaxed(V,X) __atomic_fetch_op{once}(X,&,V)
+atomic_fetch_and_acquire(V,X) __atomic_fetch_op{acquire}(X,&,V)
+atomic_fetch_and_release(V,X) __atomic_fetch_op{release}(X,&,V)
+
+atomic_fetch_or(V,X) __atomic_fetch_op{mb}(X,|,V)
+atomic_fetch_or_relaxed(V,X) __atomic_fetch_op{once}(X,|,V)
+atomic_fetch_or_acquire(V,X) __atomic_fetch_op{acquire}(X,|,V)
+atomic_fetch_or_release(V,X) __atomic_fetch_op{release}(X,|,V)
+
+atomic_fetch_xor(V,X) __atomic_fetch_op{mb}(X,^,V)
+atomic_fetch_xor_relaxed(V,X) __atomic_fetch_op{once}(X,^,V)
+atomic_fetch_xor_acquire(V,X) __atomic_fetch_op{acquire}(X,^,V)
+atomic_fetch_xor_release(V,X) __atomic_fetch_op{release}(X,^,V)
+
atomic_inc_return(X) __atomic_op_return{mb}(X,+,1)
atomic_inc_return_relaxed(X) __atomic_op_return{once}(X,+,1)
atomic_inc_return_acquire(X) __atomic_op_return{acquire}(X,+,1)
@@ -117,3 +135,6 @@ atomic_sub_and_test(V,X) __atomic_op_return{mb}(X,-,V) == 0
atomic_dec_and_test(X) __atomic_op_return{mb}(X,-,1) == 0
atomic_inc_and_test(X) __atomic_op_return{mb}(X,+,1) == 0
atomic_add_negative(V,X) __atomic_op_return{mb}(X,+,V) < 0
+atomic_add_negative_relaxed(V,X) __atomic_op_return{once}(X,+,V) < 0
+atomic_add_negative_acquire(V,X) __atomic_op_return{acquire}(X,+,V) < 0
+atomic_add_negative_release(V,X) __atomic_op_return{release}(X,+,V) < 0
--
2.40.1
next reply other threads:[~2024-05-08 14:34 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-08 14:34 Puranjay Mohan [this message]
2024-05-08 15:28 ` [PATCH] tools/memory-model: Add atomic_and()/or()/xor() and add_negative Andrea Parri
2024-05-08 17:34 ` Paul E. McKenney
2024-05-08 19:49 ` Boqun Feng
2024-05-08 21:59 ` Akira Yokosawa
2024-05-08 23:46 ` Paul E. McKenney
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20240508143400.36256-1-puranjay@kernel.org \
--to=puranjay@kernel.org \
--cc=akiyks@gmail.com \
--cc=boqun.feng@gmail.com \
--cc=dhowells@redhat.com \
--cc=dlustig@nvidia.com \
--cc=j.alglave@ucl.ac.uk \
--cc=joel@joelfernandes.org \
--cc=linux-arch@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=luc.maranget@inria.fr \
--cc=npiggin@gmail.com \
--cc=parri.andrea@gmail.com \
--cc=paulmck@kernel.org \
--cc=peterz@infradead.org \
--cc=puranjay12@gmail.com \
--cc=stern@rowland.harvard.edu \
--cc=will@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.