From nobody Thu Dec 18 18:47:15 2025 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B30F9C4167B for ; Sat, 9 Dec 2023 00:33:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1574932AbjLIAdN (ORCPT ); Fri, 8 Dec 2023 19:33:13 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44988 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1574918AbjLIAdI (ORCPT ); Fri, 8 Dec 2023 19:33:08 -0500 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 344F71987 for ; Fri, 8 Dec 2023 16:33:14 -0800 (PST) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9EAE1C433CC; Sat, 9 Dec 2023 00:33:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1702081993; bh=HfN4FCjlth7Vk9IubBls0IpglFtSjvL1qN+UsAj39lQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=anZz7v2hpfNbkyFSUJMCZ9FQGWFTnfWc/NUD1PgvM8wwk1PI/vjkEP3/iyiqn/8Cb 3SwUGEYxfCmexYTN+sFB+Nsc5z9vzHiBuDebTKouuDHEskxBM5Yl+A8ssymxrS6ohZ jwT67C+f1hIJ22+AvDneiRdA3hTwVpYWQrUsydZiwWnz3+zUaWqLiS69PF6Anix2el VjxcOKGtGAziY/iI+w0QlDjHKAyRS0XQfpjY01+eHTsmePwnj+u6sXb/aCys1oEWOU dVoigS4NK8WqK14xQjSppIVjm5X+NR1PuM+lpwz5MbXJsadYTHmW3zRLayoe6qle9N J52WRAPLyiNCg== From: Vineet Gupta To: linux-snps-arc@lists.infradead.org Cc: linux-kernel@vger.kernel.org, Pavel.Kozlov@synopsys.com, Vineet Gupta Subject: [PATCH 2/5] ARC: entry: move ARCompact specific bits out of entry.h Date: Fri, 8 Dec 2023 16:33:04 -0800 Message-Id: <20231209003307.480051-3-vgupta@kernel.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231209003307.480051-1-vgupta@kernel.org> References: <20231209003307.480051-1-vgupta@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" - PUSHAUX/POPAUX helpers to ARCompact entry - use gas provided "push"/pop pseudo instructions Signed-off-by: Vineet Gupta --- arch/arc/include/asm/entry-compact.h | 55 ++++++++++++++++++++++- arch/arc/include/asm/entry.h | 66 ---------------------------- 2 files changed, 54 insertions(+), 67 deletions(-) diff --git a/arch/arc/include/asm/entry-compact.h b/arch/arc/include/asm/en= try-compact.h index 9841f1186417..92c3e9f13252 100644 --- a/arch/arc/include/asm/entry-compact.h +++ b/arch/arc/include/asm/entry-compact.h @@ -33,6 +33,59 @@ #include #include /* For THREAD_SIZE */ =20 +/* Note on the LD/ST addr modes with addr reg wback + * + * LD.a same as LD.aw + * + * LD.a reg1, [reg2, x] =3D> Pre Incr + * Eff Addr for load =3D [reg2 + x] + * + * LD.ab reg1, [reg2, x] =3D> Post Incr + * Eff Addr for load =3D [reg2] + */ + +.macro PUSHAX aux + lr r9, [\aux] + push r9 +.endm + +.macro POPAX aux + pop r9 + sr r9, [\aux] +.endm + +.macro SAVE_R0_TO_R12 + push r0 + push r1 + push r2 + push r3 + push r4 + push r5 + push r6 + push r7 + push r8 + push r9 + push r10 + push r11 + push r12 +.endm + +.macro RESTORE_R12_TO_R0 + pop r12 + pop r11 + pop r10 + pop r9 + pop r8 + pop r7 + pop r6 + pop r5 + pop r4 + pop r3 + pop r2 + pop r1 + pop r0 +.endm + .macro SAVE_ABI_CALLEE_REGS push r13 push r14 @@ -267,7 +320,7 @@ SWITCH_TO_KERNEL_STK =20 =20 - PUSH 0x003\LVL\()abcd /* Dummy ECR */ + st.a 0x003\LVL\()abcd, [sp, -4] /* Dummy ECR */ sub sp, sp, 8 /* skip orig_r0 (not needed) skip pt_regs->sp, already saved above */ =20 diff --git a/arch/arc/include/asm/entry.h b/arch/arc/include/asm/entry.h index 8e4e40d2d54a..cf1ba376e992 100644 --- a/arch/arc/include/asm/entry.h +++ b/arch/arc/include/asm/entry.h @@ -21,72 +21,6 @@ #include #endif =20 -/* Note on the LD/ST addr modes with addr reg wback - * - * LD.a same as LD.aw - * - * LD.a reg1, [reg2, x] =3D> Pre Incr - * Eff Addr for load =3D [reg2 + x] - * - * LD.ab reg1, [reg2, x] =3D> Post Incr - * Eff Addr for load =3D [reg2] - */ - -.macro PUSH reg - st.a \reg, [sp, -4] -.endm - -.macro PUSHAX aux - lr r9, [\aux] - PUSH r9 -.endm - -.macro POP reg - ld.ab \reg, [sp, 4] -.endm - -.macro POPAX aux - POP r9 - sr r9, [\aux] -.endm - -/*-------------------------------------------------------------- - * Helpers to save/restore Scratch Regs: - * used by Interrupt/Exception Prologue/Epilogue - *-------------------------------------------------------------*/ -.macro SAVE_R0_TO_R12 - PUSH r0 - PUSH r1 - PUSH r2 - PUSH r3 - PUSH r4 - PUSH r5 - PUSH r6 - PUSH r7 - PUSH r8 - PUSH r9 - PUSH r10 - PUSH r11 - PUSH r12 -.endm - -.macro RESTORE_R12_TO_R0 - POP r12 - POP r11 - POP r10 - POP r9 - POP r8 - POP r7 - POP r6 - POP r5 - POP r4 - POP r3 - POP r2 - POP r1 - POP r0 - -.endm - /* * save user mode callee regs as struct callee_regs * - needed by fork/do_signal/unaligned-access-emulation. --=20 2.34.1