From patchwork Wed Feb 8 17:16:03 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xi Ruoyao X-Patchwork-Id: 54505 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:adf:eb09:0:0:0:0:0 with SMTP id s9csp3579836wrn; Wed, 8 Feb 2023 09:18:12 -0800 (PST) X-Google-Smtp-Source: AK7set+6ukRlNnPMorVKgITJrPzTzKu17JjDqYI2BLL8kpI6cDUWJr9XhaWXD1SLtCDcA5ikikx3 X-Received: by 2002:a17:902:c946:b0:189:f460:d24b with SMTP id i6-20020a170902c94600b00189f460d24bmr8382273pla.5.1675876691825; Wed, 08 Feb 2023 09:18:11 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1675876691; cv=none; d=google.com; s=arc-20160816; b=AgwVNmB5gV89B/KYVHNBDYrmFw+Ucj7fXmHLXWNqUgjelHzTFDjnxPnGbHaNr62COt vrOVU8qK6GHmvarbnOVLhiTkLi3H4nWggzmO9TYfXPhP4aM9vbt8BrAp8BJPb/7W7DYK RQOFpAi5m2aNqo2sQziykWVETfeGqVZQclu0XesHfgSkfIW/QT431H6T0eg5eF6MlLjI +41brCU1t57yEUY+WfMvJRsnCYmIGF4IJkK+Vml/1JqA7qOBJhUgGCoQFEl/gDsahNFt TxhTf9bQcUAKnyMjOAfBLmKlgF58xgTCcwhbFfTVkMfJ0D4GePjcRf/tYvF1EjFHrQNt zyrA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=eMyBJaDypypFT8uaN+vrKnKGXXH7Q926RrCo5TpdUv0=; b=u+KyAKYCkhAsFrutXLrcFBeXd5+4tAkAWDSyCcIR/H7vCUzjiLF8GfD7hIfMsNYARN ArzNg83pHZp/VgCWbiUp/+BxAlGnXwsq8Dvy0Fii7xPgVpgW59nCsHiv5ApmaAUVqV/Z 5JPbvXAnhN+QAh3bcQW0N2F+pINoKqQzZBDa8TmBqqivoisHFE4H2K5hAD5YxhSjK99D Cu+qILxs5B+sl940r1bKvkDfHWwBg56HoJ3x+x8/zzbluwc2m/VkNLAeO1YP65Ce1zTX bJDBFQrRvGYJjNAhLwdSnJuw/Ncik3YmmgbtHz4heikqQG0wDA3Jwfp+E4SAB9yCrifk EX2w== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@xry111.site header.s=default header.b="MVL/l6kU"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=xry111.site Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id be3-20020a170902aa0300b0019648e516dfsi16941849plb.352.2023.02.08.09.17.58; Wed, 08 Feb 2023 09:18:11 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@xry111.site header.s=default header.b="MVL/l6kU"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=xry111.site Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231549AbjBHRQd (ORCPT + 99 others); Wed, 8 Feb 2023 12:16:33 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45512 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231292AbjBHRQc (ORCPT ); Wed, 8 Feb 2023 12:16:32 -0500 Received: from xry111.site (xry111.site [89.208.246.23]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0DE5429436 for ; Wed, 8 Feb 2023 09:16:30 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=xry111.site; s=default; t=1675876590; bh=KqQlLM65Y+42Fzaj+u5LF59N7vKKvEZNbihd+mJCsx8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MVL/l6kUiZfPLh/gLfrTpJEPAlvyM5VsrmcLwFxYDTWntpd3sTe5QN4PvCLenOlI8 DlKthMbYgk6B+W59CxJyI3H+bpTny2zaHdYXaUz2F7wfmwEvxxyMoXsDG4gZHBECJL pwuH06A0mO7Kl+Md9pLTJNAZPmhFPhJJeAjiYUl8= Received: from xry111-x57s1.. (unknown [IPv6:240e:358:1174:d100:dc73:854d:832e:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-384) server-digest SHA384) (Client did not present a certificate) (Authenticated sender: xry111@xry111.site) by xry111.site (Postfix) with ESMTPSA id BAFBA65C52; Wed, 8 Feb 2023 12:16:26 -0500 (EST) From: Xi Ruoyao To: Youling Tang , Huacai Chen , Jinyang He Cc: Xuerui Wang , loongarch@lists.linux.dev, linux-kernel@vger.kernel.org, Xi Ruoyao Subject: [PATCH v3 1/5] LoongArch: Use la.pcrel instead of la.abs when it's trivially possible Date: Thu, 9 Feb 2023 01:16:03 +0800 Message-Id: <20230208171607.391107-2-xry111@xry111.site> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230208171607.391107-1-xry111@xry111.site> References: <20230208171607.391107-1-xry111@xry111.site> MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_PASS,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1757284078154079264?= X-GMAIL-MSGID: =?utf-8?q?1757284078154079264?= Let's start to kill la.abs inpreparation for the subsequent support of the PIE kernel. Signed-off-by: Xi Ruoyao --- arch/loongarch/include/asm/stackframe.h | 2 +- arch/loongarch/include/asm/uaccess.h | 1 - arch/loongarch/kernel/entry.S | 2 +- arch/loongarch/kernel/head.S | 2 +- arch/loongarch/mm/tlbex.S | 3 +-- 5 files changed, 4 insertions(+), 6 deletions(-) diff --git a/arch/loongarch/include/asm/stackframe.h b/arch/loongarch/include/asm/stackframe.h index 4ca953062b5b..7deb043ce387 100644 --- a/arch/loongarch/include/asm/stackframe.h +++ b/arch/loongarch/include/asm/stackframe.h @@ -90,7 +90,7 @@ .endm .macro set_saved_sp stackp temp temp2 - la.abs \temp, kernelsp + la.pcrel \temp, kernelsp #ifdef CONFIG_SMP LONG_ADD \temp, \temp, u0 #endif diff --git a/arch/loongarch/include/asm/uaccess.h b/arch/loongarch/include/asm/uaccess.h index 255899d4a7c3..0d22991ae430 100644 --- a/arch/loongarch/include/asm/uaccess.h +++ b/arch/loongarch/include/asm/uaccess.h @@ -22,7 +22,6 @@ extern u64 __ua_limit; #define __UA_ADDR ".dword" -#define __UA_LA "la.abs" #define __UA_LIMIT __ua_limit /* diff --git a/arch/loongarch/kernel/entry.S b/arch/loongarch/kernel/entry.S index d53b631c9022..2566977f2f68 100644 --- a/arch/loongarch/kernel/entry.S +++ b/arch/loongarch/kernel/entry.S @@ -20,7 +20,7 @@ .align 5 SYM_FUNC_START(handle_syscall) csrrd t0, PERCPU_BASE_KS - la.abs t1, kernelsp + la.pcrel t1, kernelsp add.d t1, t1, t0 move t2, sp ld.d sp, t1, 0 diff --git a/arch/loongarch/kernel/head.S b/arch/loongarch/kernel/head.S index 57bada6b4e93..aa6181714ec3 100644 --- a/arch/loongarch/kernel/head.S +++ b/arch/loongarch/kernel/head.S @@ -117,7 +117,7 @@ SYM_CODE_START(smpboot_entry) li.w t0, 0x00 # FPE=0, SXE=0, ASXE=0, BTE=0 csrwr t0, LOONGARCH_CSR_EUEN - la.abs t0, cpuboot_data + la.pcrel t0, cpuboot_data ld.d sp, t0, CPU_BOOT_STACK ld.d tp, t0, CPU_BOOT_TINFO diff --git a/arch/loongarch/mm/tlbex.S b/arch/loongarch/mm/tlbex.S index 58781c6e4191..3dd2a9615cd9 100644 --- a/arch/loongarch/mm/tlbex.S +++ b/arch/loongarch/mm/tlbex.S @@ -24,8 +24,7 @@ move a0, sp REG_S a2, sp, PT_BVADDR li.w a1, \write - la.abs t0, do_page_fault - jirl ra, t0, 0 + bl do_page_fault RESTORE_ALL_AND_RET SYM_FUNC_END(tlb_do_page_fault_\write) .endm