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Thu, 23 Jul 2026 14:06:58 +0000 (GMT) Received: from thinkpad-p1.ehn-de.ibm.com (unknown [9.224.75.254]) by smtpav06.wdc07v.mail.ibm.com (Postfix) with ESMTP; Thu, 23 Jul 2026 14:06:58 +0000 (GMT) From: Maxim Khmelevskii To: Alexei Starovoitov , Andrii Nakryiko , Daniel Borkmann Cc: bpf@vger.kernel.org, Ilya Leoshkevich , Heiko Carstens , Vasily Gorbik , Alexander Gordeev Subject: [PATCH bpf-next 0/3] s390/bpf: Support load-acquire and store-release instructions Date: Thu, 23 Jul 2026 16:03:48 +0200 Message-ID: <20260723140648.583055-5-max@linux.ibm.com> X-Mailer: git-send-email 2.55.0 Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: Ku-O69yqY8VmW-FIh7ELS4_Dm_Tz3AYg X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzIzMDEzNSBTYWx0ZWRfX4SQ/8ucu0Swf 0YZorOXH/zgR62BsEG6sVXzFBTW00Bg8twGO8TSZ1oPPOOvb/LJCVDjK18lfy3ZeVOo83P2etOJ w00PaVenPEKlPWtZaFQkUdQ3DaCEPehEOclM7i0MtN6mc7RwcZuA/8P2Hpv6+Phxjuy9KAKdbtX 7LpaEwA2l0F8fDLS/oEFnRTkGQJkQ5w1wDG9Mz9/BX0Nn1spYHpq3OTJ4JMlPEKeMJoJf1tRNYX sDLs/10V864c6Zbns+s/A2R3NOcXdZPQjFfdjZpxskNrb1dHGsdiUGVZCIsPmX1iIX9ATtJ1bam CoPV51fnP4p26qtI2nRB8wVa53V0Y80AMRSAYspLrPGKEnPRF7syTr4tsUmQwleMy61hVyph84P yEY8WQfSiVb4HnGRzrYvXLQaGrmbRdpPbooZz1UByKHUmA50ieDOnxiU1pUZE46mJmUg3T+eoXK VIkArVcUcmGScVyLhjw== X-Proofpoint-Spam-Info: AW1haW4tMjYwNzIzMDEzNSBTYWx0ZWRfXwuJbwQw7Htuc Kvka+t1T7SWUVxhVusgg1Q6qhLPVI80OFt6/uY1idWDKbqGdQE2F73wplf9/UQlzJDGVu7AwoC1 iI9/klZD8ZFkRD5VHB/+pVcPRc2Kpcw= X-Proofpoint-GUID: Ku-O69yqY8VmW-FIh7ELS4_Dm_Tz3AYg X-Authority-Analysis: v=2.4 cv=SM5ykuvH c=1 sm=1 tr=0 ts=6a622006 cx=c_pps a=3Bg1Hr4SwmMryq2xdFQyZA==:117 a=3Bg1Hr4SwmMryq2xdFQyZA==:17 a=RAioF0-LDSMA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=RzCfie-kr_QcCd8fBx8p:22 a=7XoH4dCvY4e9pCTkT3EA:9 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-23_04,2026-07-22_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 lowpriorityscore=0 bulkscore=0 suspectscore=0 adultscore=0 spamscore=0 malwarescore=0 priorityscore=1501 phishscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607230135 Support load-acquire (BPF_LOAD_ACQ) and store-release (BPF_STORE_REL) instructions. Since s390 has strong memory model, implement them as regular BPF_LDX/BPF_STX instructions. Maxim Khmelevskii (3): s390/bpf: Add emit_ldx and emit_stx functions s390/bpf: Support load-acquire and store-release instructions s390/bpf: Enable atomics tests for s390 arch/s390/net/bpf_jit_comp.c | 198 ++++++++++-------- .../selftests/bpf/progs/arena_atomics.c | 18 +- tools/testing/selftests/bpf/progs/bpf_misc.h | 9 +- 3 files changed, 123 insertions(+), 102 deletions(-) -- 2.55.0