From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3387937149 for ; Fri, 17 May 2024 07:57:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715932632; cv=none; b=ZHrsQdMXYBOykQ7b9iQCF1nfWkYsg/nd7EZzug4+iCDK247yCXS7uCduad+IJ/Vj/WNz5ekntxvnuCMhi24fbRxLthoxx1xiOrEv5rY7TYAWM5lpKvTnbhDfLWHTHAxQsQ1XLJARAU8GmYm2ozhpEvilJkdtS9wK6N9KoyxIfcQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715932632; c=relaxed/simple; bh=z3AwgBqlBUWCWye022RyFCz2f5ylMRfnUjZq4yLjspw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=EU3LvusgiB+y5TMR365D4Xm51aciauwDDKgfeNQAum49W1skbvyo9JY2/4gIVp0E2ShuAxjxa024GSL+9VrRDWlLQzJOJisFiRbWaqHx03ZTz3x8KCf7LVeJ0rMuU1k8MkArSoquA96ogAfHBizx3X7rOLTKQ/QlqvJ8+AtfuPU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=W49hEC+m; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="W49hEC+m" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1715932630; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=EsCKnSd8SY21HTUjj+hbf4r5AF/uUdXnBR6lfnTM7uI=; b=W49hEC+mDultynAMoGV0hlUTXaCBRBFvXbI7v11BevS8jfjrt8QaG/b62q7sNE6PxSbzB6 tuEThDsI3ude0C+MPQS5vCKu7b8Wdx5kJGuKgFjHC5rvysS2cnnA8JPmw0dKBJPChI9qV6 gk20zg3CRBOKPyVtf1/XXRPas++lSWc= Received: from mimecast-mx02.redhat.com (mx-ext.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-402-vWFqYgpbOEGkJTvFzMf7zg-1; Fri, 17 May 2024 03:57:05 -0400 X-MC-Unique: vWFqYgpbOEGkJTvFzMf7zg-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 765E529AA3AC; Fri, 17 May 2024 07:57:04 +0000 (UTC) Received: from alecto.usersys.redhat.com (unknown [10.43.17.36]) by smtp.corp.redhat.com (Postfix) with ESMTP id DD402740F; Fri, 17 May 2024 07:57:02 +0000 (UTC) From: Artem Savkov To: Michael Ellerman , Nicholas Piggin , Christophe Leroy , "Naveen N. Rao" , linuxppc-dev@lists.ozlabs.org Cc: Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , bpf@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Artem Savkov Subject: [PATCH 4/5] powerpc64/bpf: jit support for sign extended mov Date: Fri, 17 May 2024 09:56:49 +0200 Message-ID: <20240517075650.248801-5-asavkov@redhat.com> In-Reply-To: <20240517075650.248801-1-asavkov@redhat.com> References: <20240517075650.248801-1-asavkov@redhat.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.5 Add jit support for sign extended mov. Tested using test_bpf module. Signed-off-by: Artem Savkov --- arch/powerpc/net/bpf_jit_comp64.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/net/bpf_jit_comp64.c b/arch/powerpc/net/bpf_jit_comp64.c index b9f47398b311d..811775cfd3a1b 100644 --- a/arch/powerpc/net/bpf_jit_comp64.c +++ b/arch/powerpc/net/bpf_jit_comp64.c @@ -676,8 +676,14 @@ int bpf_jit_build_body(struct bpf_prog *fp, u32 *image, u32 *fimage, struct code /* special mov32 for zext */ EMIT(PPC_RAW_RLWINM(dst_reg, dst_reg, 0, 0, 31)); break; - } - EMIT(PPC_RAW_MR(dst_reg, src_reg)); + } else if (off == 8) { + EMIT(PPC_RAW_EXTSB(dst_reg, src_reg)); + } else if (off == 16) { + EMIT(PPC_RAW_EXTSH(dst_reg, src_reg)); + } else if (off == 32) { + EMIT(PPC_RAW_EXTSW(dst_reg, src_reg)); + } else if (dst_reg != src_reg) + EMIT(PPC_RAW_MR(dst_reg, src_reg)); goto bpf_alu32_trunc; case BPF_ALU | BPF_MOV | BPF_K: /* (u32) dst = imm */ case BPF_ALU64 | BPF_MOV | BPF_K: /* dst = (s64) imm */ -- 2.45.0