From nobody Mon Nov 17 13:47:22 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ispras.ru ARC-Seal: i=1; a=rsa-sha256; t=1604577345; cv=none; d=zohomail.com; s=zohoarc; b=HDju5dmj0oaaG8oc2m3S/Gj0dng7b+hve61Z9MSArfAqQYuKRBJZscc14NfEIxlaCC4QBnxV3xuhCobRNi+95ooiJGtqy7b+BH0t2ssV1h9NJxnIPpJEH11fIkysLwckqqWUoHuhEnB1o/WUA4QYxVO7+rb6OnlnUaC0G4eZ93k= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1604577345; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Sender:Subject:To; bh=TDZs3bofjPHjY2N6TVuamp1VuniSMRUI4RTm/9cP2dI=; b=b07Nd0VTDZAAEmq/OP2Ym9PZkjQfJIYmMDCn2osi5Fo6jGndNfPD33bq8w0IjqFFZ9qFvV+Qr5o0wrxhTJvemyz8vYkqNOM18gWglN/PpFtVnlCXkuZeL8jf+D09tPtzi6MZJrDivzC+M4FMX0TjwCFJkrVvcHW3Pd7hM9Zkaig= ARC-Authentication-Results: i=1; mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1604577345487191.93725256949642; Thu, 5 Nov 2020 03:55:45 -0800 (PST) Received: from localhost ([::1]:55536 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kadrk-0007kA-6d for importer@patchew.org; Thu, 05 Nov 2020 06:55:44 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:38360) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kadqo-0007JJ-U3 for qemu-devel@nongnu.org; Thu, 05 Nov 2020 06:54:46 -0500 Received: from mail.ispras.ru ([83.149.199.84]:60882) by eggs.gnu.org with esmtps (TLS1.2:DHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kadql-0000mw-Mh for qemu-devel@nongnu.org; Thu, 05 Nov 2020 06:54:46 -0500 Received: from [127.0.1.1] (unknown [62.118.151.149]) by mail.ispras.ru (Postfix) with ESMTPSA id 116B540A2075; Thu, 5 Nov 2020 11:54:37 +0000 (UTC) Subject: [PATCH] target/openrisc: fix icount handling for timer instructions From: Pavel Dovgalyuk To: qemu-devel@nongnu.org Date: Thu, 05 Nov 2020 14:54:36 +0300 Message-ID: <160457727672.17573.9713521384015502561.stgit@pasha-ThinkPad-X280> User-Agent: StGit/0.23 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=83.149.199.84; envelope-from=pavel.dovgalyuk@ispras.ru; helo=mail.ispras.ru X-detected-operating-system: by eggs.gnu.org: First seen = 2020/11/05 06:54:37 X-ACL-Warn: Detected OS = Linux 3.11 and newer [fuzzy] X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: shorne@gmail.com, pavel.dovgalyuk@ispras.ru, proljc@gmail.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" This patch adds icount handling to mfspr/mtspr instructions that may deal with hardware timers. Signed-off-by: Pavel Dovgalyuk --- target/openrisc/translate.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/target/openrisc/translate.c b/target/openrisc/translate.c index c6dce879f1..a9c81f8bd5 100644 --- a/target/openrisc/translate.c +++ b/target/openrisc/translate.c @@ -884,6 +884,18 @@ static bool trans_l_mfspr(DisasContext *dc, arg_l_mfsp= r *a) gen_illegal_exception(dc); } else { TCGv spr =3D tcg_temp_new(); + + if (tb_cflags(dc->base.tb) & CF_USE_ICOUNT) { + gen_io_start(); + if (dc->delayed_branch) { + tcg_gen_mov_tl(cpu_pc, jmp_pc); + tcg_gen_discard_tl(jmp_pc); + } else { + tcg_gen_movi_tl(cpu_pc, dc->base.pc_next + 4); + } + dc->base.is_jmp =3D DISAS_EXIT; + } + tcg_gen_ori_tl(spr, cpu_R(dc, a->a), a->k); gen_helper_mfspr(cpu_R(dc, a->d), cpu_env, cpu_R(dc, a->d), spr); tcg_temp_free(spr); @@ -898,6 +910,9 @@ static bool trans_l_mtspr(DisasContext *dc, arg_l_mtspr= *a) } else { TCGv spr; =20 + if (tb_cflags(dc->base.tb) & CF_USE_ICOUNT) { + gen_io_start(); + } /* For SR, we will need to exit the TB to recognize the new * exception state. For NPC, in theory this counts as a branch * (although the SPR only exists for use by an ICE). Save all