From patchwork Sat Mar 30 14:12:24 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Edgar E. Iglesias" X-Patchwork-Id: 232521 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id CE0CC2C00DF for ; Sun, 31 Mar 2013 01:16:26 +1100 (EST) Received: from localhost ([::1]:48526 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ULwa0-0006SW-Pv for incoming@patchwork.ozlabs.org; Sat, 30 Mar 2013 10:16:24 -0400 Received: from eggs.gnu.org ([208.118.235.92]:37473) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ULwZj-0006SO-5L for qemu-devel@nongnu.org; Sat, 30 Mar 2013 10:16:10 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ULwZh-0002mJ-Bg for qemu-devel@nongnu.org; Sat, 30 Mar 2013 10:16:07 -0400 Received: from mail-ee0-f45.google.com ([74.125.83.45]:56695) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ULwZh-0002mC-5K for qemu-devel@nongnu.org; Sat, 30 Mar 2013 10:16:05 -0400 Received: by mail-ee0-f45.google.com with SMTP id b57so531539eek.4 for ; Sat, 30 Mar 2013 07:16:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-received:from:to:subject:date:message-id:x-mailer; bh=ydwrXpxh92Gso3HIH4Ci0qMsMYmejZ/nfYMNsti2rM0=; b=B9ekym83ZJHQkAmwlLZbfQC/16bydRzHO/WtRsRN3KUchSYME7L8B9aGzAKJeh/8n6 /NrgHKpqmnzPQuViWdjk1QG4/oHlKBh1WwalfHnZwoNB1yG/HLQT96wi1jo3Pum+rZyK rrGCamEfVOAX18sOd5m2YHn0FUiOhCcj9bqN21QWNGbffWoWWp6EfvyEVpcZzpbY5Tdl uTa2yzGafNWjTI2XzbOBjtB/9WT0aIW0hN5ZZOj+MTFooZuf1QlqpavSPfyvPq86MhkF YpwOSsDbvg0wN85M93bkXDYvNa49yf/GQkxUgZSAfWpn9zIHb29Nqptbplx4y3tcE9on 1HbA== X-Received: by 10.14.207.200 with SMTP id n48mr18846830eeo.4.1364652964287; Sat, 30 Mar 2013 07:16:04 -0700 (PDT) Received: from localhost (h59ec325f.selukar.dyn.perspektivbredband.net. [89.236.50.95]) by mx.google.com with ESMTPS id s47sm10187932eeg.8.2013.03.30.07.16.03 (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Sat, 30 Mar 2013 07:16:03 -0700 (PDT) From: edgar.iglesias@gmail.com To: qemu-devel@nongnu.org Date: Sat, 30 Mar 2013 15:12:24 +0100 Message-Id: <1364652744-7001-1-git-send-email-edgar.iglesias@gmail.com> X-Mailer: git-send-email 1.7.9.5 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 74.125.83.45 Subject: [Qemu-devel] [PATCH v2] microblaze: Add support for the sleep insn X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: "Edgar E. Iglesias" Signed-off-by: Edgar E. Iglesias --- target-microblaze/translate.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/target-microblaze/translate.c b/target-microblaze/translate.c index a74da8e..06d2346 100644 --- a/target-microblaze/translate.c +++ b/target-microblaze/translate.c @@ -1317,6 +1317,23 @@ static void dec_br(DisasContext *dc) /* Memory barrier. */ mbar = (dc->ir >> 16) & 31; if (mbar == 2 && dc->imm == 4) { + /* mbar IMM & 16 decodes to sleep. */ + if (dc->rd & 16) { + TCGv_i32 tmp_hlt = tcg_const_i32(EXCP_HLT); + TCGv_i32 tmp_1 = tcg_const_i32(1); + + LOG_DIS("sleep\n"); + + t_sync_flags(dc); + tcg_gen_st_i32(tmp_1, cpu_env, + -offsetof(MicroBlazeCPU, env) + +offsetof(CPUState, halted)); + tcg_gen_movi_tl(cpu_SR[SR_PC], dc->pc + 4); + gen_helper_raise_exception(cpu_env, tmp_hlt); + tcg_temp_free_i32(tmp_hlt); + tcg_temp_free_i32(tmp_1); + return; + } LOG_DIS("mbar %d\n", dc->rd); /* Break the TB. */ dc->cpustate_changed = 1;