From patchwork Mon May 2 14:39:29 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?V=C3=ADctor_Colombo?= X-Patchwork-Id: 12834296 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id B9DC7C433EF for ; Mon, 2 May 2022 15:07:44 +0000 (UTC) Received: from localhost ([::1]:40388 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nlXeJ-00062Z-Pk for qemu-devel@archiver.kernel.org; Mon, 02 May 2022 11:07:43 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:54126) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nlXFY-0005cr-Jo; Mon, 02 May 2022 10:42:09 -0400 Received: from [187.72.171.209] (port=26627 helo=outlook.eldorado.org.br) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nlXFX-0003MH-36; Mon, 02 May 2022 10:42:08 -0400 Received: from p9ibm ([10.10.71.235]) by outlook.eldorado.org.br over TLS secured channel with Microsoft SMTPSVC(8.5.9600.16384); Mon, 2 May 2022 11:40:05 -0300 Received: from eldorado.org.br (unknown [10.10.70.45]) by p9ibm (Postfix) with ESMTP id 1BD28800902; Mon, 2 May 2022 11:40:05 -0300 (-03) From: =?utf-8?q?V=C3=ADctor_Colombo?= To: qemu-devel@nongnu.org, qemu-ppc@nongnu.org Subject: [PATCH v2 16/21] target/ppc: Remove msr_ep macro Date: Mon, 2 May 2022 11:39:29 -0300 Message-Id: <20220502143934.71908-17-victor.colombo@eldorado.org.br> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220502143934.71908-1-victor.colombo@eldorado.org.br> References: <20220502143934.71908-1-victor.colombo@eldorado.org.br> MIME-Version: 1.0 X-OriginalArrivalTime: 02 May 2022 14:40:05.0511 (UTC) FILETIME=[83818970:01D85E32] X-Host-Lookup-Failed: Reverse DNS lookup failed for 187.72.171.209 (failed) Received-SPF: pass client-ip=187.72.171.209; envelope-from=victor.colombo@eldorado.org.br; helo=outlook.eldorado.org.br X-Spam_score_int: -4 X-Spam_score: -0.5 X-Spam_bar: / X-Spam_report: (-0.5 / 5.0 requ) BAYES_00=-1.9, PDS_HP_HELO_NORDNS=0.659, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: danielhb413@gmail.com, richard.henderson@linaro.org, groug@kaod.org, victor.colombo@eldorado.org.br, clg@kaod.org, david@gibson.dropbear.id.au Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" msr_ep macro hides the usage of env->msr, which is a bad behavior Substitute it with FIELD_EX64 calls that explicitly use env->msr as a parameter. Also, this macro was called in a specific place where it was being used 'kinda' like a mask: (value >> MSR_EP) & 1) != msr_ep. The setup to use FIELD_EX64 (calling FIELD macro in cpu.h) also adds a R_MSR_EP_MASK which is equivalent to (1ull << MSR_EP). So, use this mask to simplify the code. Suggested-by: Richard Henderson Signed-off-by: Víctor Colombo --- v2: Remove M_MSR_EP and use FIELD_EX64 instead Signed-off-by: Víctor Colombo --- target/ppc/cpu.h | 2 +- target/ppc/helper_regs.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h index ff52eef304..9683e6a359 100644 --- a/target/ppc/cpu.h +++ b/target/ppc/cpu.h @@ -363,6 +363,7 @@ FIELD(MSR, EE, MSR_EE, 1) FIELD(MSR, PR, MSR_PR, 1) FIELD(MSR, FP, MSR_FP, 1) FIELD(MSR, ME, MSR_ME, 1) +FIELD(MSR, EP, MSR_EP, 1) FIELD(MSR, IR, MSR_IR, 1) FIELD(MSR, DR, MSR_DR, 1) FIELD(MSR, DS, MSR_DS, 1) @@ -485,7 +486,6 @@ FIELD(MSR, LE, MSR_LE, 1) #endif #define msr_fe0 ((env->msr >> MSR_FE0) & 1) #define msr_fe1 ((env->msr >> MSR_FE1) & 1) -#define msr_ep ((env->msr >> MSR_EP) & 1) #define msr_ts ((env->msr >> MSR_TS1) & 3) #define DBCR0_ICMP (1 << 27) diff --git a/target/ppc/helper_regs.c b/target/ppc/helper_regs.c index 8c2b8acb60..1c593686d4 100644 --- a/target/ppc/helper_regs.c +++ b/target/ppc/helper_regs.c @@ -241,8 +241,8 @@ int hreg_store_msr(CPUPPCState *env, target_ulong value, int alter_hv) /* Swap temporary saved registers with GPRs */ hreg_swap_gpr_tgpr(env); } - if (unlikely((value >> MSR_EP) & 1) != msr_ep) { - env->excp_prefix = ((value >> MSR_EP) & 1) * 0xFFF00000; + if (unlikely(!(value & env->msr & R_MSR_EP_MASK))) { + env->excp_prefix = FIELD_EX64(env->msr, MSR, EP) * 0xFFF00000; } /* * If PR=1 then EE, IR and DR must be 1