From patchwork Fri Sep 24 17:25:22 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: WANG Xuerui X-Patchwork-Id: 12516355 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DB8FAC433F5 for ; Fri, 24 Sep 2021 17:57:10 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 62F9E610C7 for ; Fri, 24 Sep 2021 17:57:10 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 62F9E610C7 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=xen0n.name Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:52138 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mTpRd-0004d2-J7 for qemu-devel@archiver.kernel.org; Fri, 24 Sep 2021 13:57:09 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:52952) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mTozF-0007tP-D9 for qemu-devel@nongnu.org; Fri, 24 Sep 2021 13:27:49 -0400 Received: from [115.28.160.31] (port=41610 helo=mailbox.box.xen0n.name) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mTozD-00057j-Np for qemu-devel@nongnu.org; Fri, 24 Sep 2021 13:27:49 -0400 Received: from ld50.lan (unknown [101.88.29.172]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by mailbox.box.xen0n.name (Postfix) with ESMTPSA id EB7E460B26; Sat, 25 Sep 2021 01:27:33 +0800 (CST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=xen0n.name; s=mail; t=1632504454; bh=sEtZcFcCWQPDw3FscMPF3odU8jCk0BiYAtYecSvuXlA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=AyAMBFgc4AyKqD/d5E4jO9sVtVDaFVoSSgQEUQ4MMa1rHt0xRYcd8aT3AtkxSH7Iz lprRcNjiekfg+49b+f5w2OmjjQ9YwCWIRf0/fW0UnUaOqTMfFqLaoNnGGtBTFAw3NE /HnchZH4Gk07i8pMgzQAkPmP8KJQm5ZBn4+EjAyQ= From: WANG Xuerui To: qemu-devel@nongnu.org Subject: [PATCH v5 25/30] tcg/loongarch64: Implement exit_tb/goto_tb Date: Sat, 25 Sep 2021 01:25:22 +0800 Message-Id: <20210924172527.904294-26-git@xen0n.name> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20210924172527.904294-1-git@xen0n.name> References: <20210924172527.904294-1-git@xen0n.name> MIME-Version: 1.0 X-Host-Lookup-Failed: Reverse DNS lookup failed for 115.28.160.31 (failed) Received-SPF: pass client-ip=115.28.160.31; envelope-from=git@xen0n.name; helo=mailbox.box.xen0n.name X-Spam_score_int: -12 X-Spam_score: -1.3 X-Spam_bar: - X-Spam_report: (-1.3 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no 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: WANG Xuerui , Peter Maydell , Richard Henderson , =?utf-8?q?Philippe_Mathie?= =?utf-8?q?u-Daud=C3=A9?= , Laurent Vivier Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: WANG Xuerui Reviewed-by: Richard Henderson --- tcg/loongarch64/tcg-target.c.inc | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc index 4900af1853..4437b07541 100644 --- a/tcg/loongarch64/tcg-target.c.inc +++ b/tcg/loongarch64/tcg-target.c.inc @@ -952,6 +952,25 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc, int c2 = const_args[2]; switch (opc) { + case INDEX_op_exit_tb: + /* Reuse the zeroing that exists for goto_ptr. */ + if (a0 == 0) { + tcg_out_call_int(s, tcg_code_gen_epilogue, true); + } else { + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_A0, a0); + tcg_out_call_int(s, tb_ret_addr, true); + } + break; + + case INDEX_op_goto_tb: + assert(s->tb_jmp_insn_offset == 0); + /* indirect jump method */ + tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_TMP0, TCG_REG_ZERO, + (uintptr_t)(s->tb_jmp_target_addr + a0)); + tcg_out_opc_jirl(s, TCG_REG_ZERO, TCG_REG_TMP0, 0); + set_jmp_reset_offset(s, a0); + break; + case INDEX_op_mb: tcg_out_mb(s, a0); break;