From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 EE796FD063E for ; Wed, 11 Mar 2026 07:07:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=5S61YmyZON+AGCWL4Q3VRt7Vu3oOPiTtCRvCQ+72rBw=; b=WrX629Wyprjz2d PyKkwYhcUfshU3xiwEYqkJXQ7QAf/YOW/1gNVHsUw4v9yZBkJ3nY2YpLVHMoY2tGGHXrfCjmSOE1T Su1cbK612lL/vywMjHP+5WaGAE0htogyg5SQ8FEUx3AzZmK81ujQe5j0gHRDFGSTm1u8sSVgW4YjW hYTt6N8JHeUVro/rSk/vbRnz4zRQrMMwo+uC/MaQtL8lewnVFJmBLzTyMUKOJSNb2uQPvDp4HeVLb 4ipkNsBjK7SMhlmrnih8InoAPY1dSizA/1bJ8HUnGwvyzuyDkclh1tAbEUytIQ9Q7MznA24crYj3U xm4URUK1oGZntryDjjbw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1w0DfO-0000000AzqZ-1jaM; Wed, 11 Mar 2026 07:07:38 +0000 Received: from [212.243.42.10] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.98.2 #2 (Red Hat Linux)) id 1w0DfL-0000000AzeY-30Fy; Wed, 11 Mar 2026 07:07:36 +0000 From: Christoph Hellwig To: Andrew Morton Cc: Richard Henderson , Matt Turner , Magnus Lindholm , Russell King , Catalin Marinas , Will Deacon , Huacai Chen , WANG Xuerui , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , "Christophe Leroy (CS GROUP)" , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , "David S. Miller" , Andreas Larsson , Richard Weinberger , Anton Ivanov , Johannes Berg , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Herbert Xu , Dan Williams , Chris Mason , David Sterba , Arnd Bergmann , Song Liu , Yu Kuai , Li Nan , "Theodore Ts'o" , "Jason A. Donenfeld" , linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, loongarch@lists.linux.dev, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, linux-crypto@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-arch@vger.kernel.org, linux-raid@vger.kernel.org Subject: [PATCH 13/27] loongarch: move the XOR code to lib/raid/ Date: Wed, 11 Mar 2026 08:03:45 +0100 Message-ID: <20260311070416.972667-14-hch@lst.de> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260311070416.972667-1-hch@lst.de> References: <20260311070416.972667-1-hch@lst.de> MIME-Version: 1.0 X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Move the optimized XOR into lib/raid and include it it in xor.ko instead of always building it into the main kernel image. Signed-off-by: Christoph Hellwig --- arch/loongarch/include/asm/xor.h | 24 ++---------- arch/loongarch/include/asm/xor_simd.h | 34 ---------------- arch/loongarch/lib/Makefile | 2 - lib/raid/xor/Makefile | 2 + .../lib => lib/raid/xor/loongarch}/xor_simd.c | 0 .../lib => lib/raid/xor/loongarch}/xor_simd.h | 0 .../raid/xor/loongarch}/xor_simd_glue.c | 39 +++++++++++-------- .../raid/xor/loongarch}/xor_template.c | 0 8 files changed, 27 insertions(+), 74 deletions(-) delete mode 100644 arch/loongarch/include/asm/xor_simd.h rename {arch/loongarch/lib => lib/raid/xor/loongarch}/xor_simd.c (100%) rename {arch/loongarch/lib => lib/raid/xor/loongarch}/xor_simd.h (100%) rename {arch/loongarch/lib => lib/raid/xor/loongarch}/xor_simd_glue.c (64%) rename {arch/loongarch/lib => lib/raid/xor/loongarch}/xor_template.c (100%) diff --git a/arch/loongarch/include/asm/xor.h b/arch/loongarch/include/asm/xor.h index d17c0e3b047f..7e32f72f8b03 100644 --- a/arch/loongarch/include/asm/xor.h +++ b/arch/loongarch/include/asm/xor.h @@ -6,27 +6,6 @@ #define _ASM_LOONGARCH_XOR_H #include -#include - -#ifdef CONFIG_CPU_HAS_LSX -static struct xor_block_template xor_block_lsx = { - .name = "lsx", - .do_2 = xor_lsx_2, - .do_3 = xor_lsx_3, - .do_4 = xor_lsx_4, - .do_5 = xor_lsx_5, -}; -#endif /* CONFIG_CPU_HAS_LSX */ - -#ifdef CONFIG_CPU_HAS_LASX -static struct xor_block_template xor_block_lasx = { - .name = "lasx", - .do_2 = xor_lasx_2, - .do_3 = xor_lasx_3, - .do_4 = xor_lasx_4, - .do_5 = xor_lasx_5, -}; -#endif /* CONFIG_CPU_HAS_LASX */ /* * For grins, also test the generic routines. @@ -38,6 +17,9 @@ static struct xor_block_template xor_block_lasx = { */ #include +extern struct xor_block_template xor_block_lsx; +extern struct xor_block_template xor_block_lasx; + #define arch_xor_init arch_xor_init static __always_inline void __init arch_xor_init(void) { diff --git a/arch/loongarch/include/asm/xor_simd.h b/arch/loongarch/include/asm/xor_simd.h deleted file mode 100644 index 471b96332f38..000000000000 --- a/arch/loongarch/include/asm/xor_simd.h +++ /dev/null @@ -1,34 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-or-later */ -/* - * Copyright (C) 2023 WANG Xuerui - */ -#ifndef _ASM_LOONGARCH_XOR_SIMD_H -#define _ASM_LOONGARCH_XOR_SIMD_H - -#ifdef CONFIG_CPU_HAS_LSX -void xor_lsx_2(unsigned long bytes, unsigned long * __restrict p1, - const unsigned long * __restrict p2); -void xor_lsx_3(unsigned long bytes, unsigned long * __restrict p1, - const unsigned long * __restrict p2, const unsigned long * __restrict p3); -void xor_lsx_4(unsigned long bytes, unsigned long * __restrict p1, - const unsigned long * __restrict p2, const unsigned long * __restrict p3, - const unsigned long * __restrict p4); -void xor_lsx_5(unsigned long bytes, unsigned long * __restrict p1, - const unsigned long * __restrict p2, const unsigned long * __restrict p3, - const unsigned long * __restrict p4, const unsigned long * __restrict p5); -#endif /* CONFIG_CPU_HAS_LSX */ - -#ifdef CONFIG_CPU_HAS_LASX -void xor_lasx_2(unsigned long bytes, unsigned long * __restrict p1, - const unsigned long * __restrict p2); -void xor_lasx_3(unsigned long bytes, unsigned long * __restrict p1, - const unsigned long * __restrict p2, const unsigned long * __restrict p3); -void xor_lasx_4(unsigned long bytes, unsigned long * __restrict p1, - const unsigned long * __restrict p2, const unsigned long * __restrict p3, - const unsigned long * __restrict p4); -void xor_lasx_5(unsigned long bytes, unsigned long * __restrict p1, - const unsigned long * __restrict p2, const unsigned long * __restrict p3, - const unsigned long * __restrict p4, const unsigned long * __restrict p5); -#endif /* CONFIG_CPU_HAS_LASX */ - -#endif /* _ASM_LOONGARCH_XOR_SIMD_H */ diff --git a/arch/loongarch/lib/Makefile b/arch/loongarch/lib/Makefile index ccea3bbd4353..827a88529a42 100644 --- a/arch/loongarch/lib/Makefile +++ b/arch/loongarch/lib/Makefile @@ -8,6 +8,4 @@ lib-y += delay.o memset.o memcpy.o memmove.o \ obj-$(CONFIG_ARCH_SUPPORTS_INT128) += tishift.o -obj-$(CONFIG_CPU_HAS_LSX) += xor_simd.o xor_simd_glue.o - obj-$(CONFIG_FUNCTION_ERROR_INJECTION) += error-inject.o diff --git a/lib/raid/xor/Makefile b/lib/raid/xor/Makefile index 3c13851219e5..fafd131cef27 100644 --- a/lib/raid/xor/Makefile +++ b/lib/raid/xor/Makefile @@ -15,6 +15,8 @@ xor-$(CONFIG_KERNEL_MODE_NEON) += arm/xor-neon.o arm/xor-neon-glue.o else xor-$(CONFIG_KERNEL_MODE_NEON) += arm64/xor-neon.o arm64/xor-neon-glue.o endif +xor-$(CONFIG_CPU_HAS_LSX) += loongarch/xor_simd.o +xor-$(CONFIG_CPU_HAS_LSX) += loongarch/xor_simd_glue.o CFLAGS_arm/xor-neon.o += $(CC_FLAGS_FPU) diff --git a/arch/loongarch/lib/xor_simd.c b/lib/raid/xor/loongarch/xor_simd.c similarity index 100% rename from arch/loongarch/lib/xor_simd.c rename to lib/raid/xor/loongarch/xor_simd.c diff --git a/arch/loongarch/lib/xor_simd.h b/lib/raid/xor/loongarch/xor_simd.h similarity index 100% rename from arch/loongarch/lib/xor_simd.h rename to lib/raid/xor/loongarch/xor_simd.h diff --git a/arch/loongarch/lib/xor_simd_glue.c b/lib/raid/xor/loongarch/xor_simd_glue.c similarity index 64% rename from arch/loongarch/lib/xor_simd_glue.c rename to lib/raid/xor/loongarch/xor_simd_glue.c index 393f689dbcf6..11fa3b47ba83 100644 --- a/arch/loongarch/lib/xor_simd_glue.c +++ b/lib/raid/xor/loongarch/xor_simd_glue.c @@ -5,24 +5,23 @@ * Copyright (C) 2023 WANG Xuerui */ -#include #include +#include #include -#include +#include #include "xor_simd.h" #define MAKE_XOR_GLUE_2(flavor) \ -void xor_##flavor##_2(unsigned long bytes, unsigned long * __restrict p1, \ +static void xor_##flavor##_2(unsigned long bytes, unsigned long * __restrict p1,\ const unsigned long * __restrict p2) \ { \ kernel_fpu_begin(); \ __xor_##flavor##_2(bytes, p1, p2); \ kernel_fpu_end(); \ } \ -EXPORT_SYMBOL_GPL(xor_##flavor##_2) #define MAKE_XOR_GLUE_3(flavor) \ -void xor_##flavor##_3(unsigned long bytes, unsigned long * __restrict p1, \ +static void xor_##flavor##_3(unsigned long bytes, unsigned long * __restrict p1,\ const unsigned long * __restrict p2, \ const unsigned long * __restrict p3) \ { \ @@ -30,10 +29,9 @@ void xor_##flavor##_3(unsigned long bytes, unsigned long * __restrict p1, \ __xor_##flavor##_3(bytes, p1, p2, p3); \ kernel_fpu_end(); \ } \ -EXPORT_SYMBOL_GPL(xor_##flavor##_3) #define MAKE_XOR_GLUE_4(flavor) \ -void xor_##flavor##_4(unsigned long bytes, unsigned long * __restrict p1, \ +static void xor_##flavor##_4(unsigned long bytes, unsigned long * __restrict p1,\ const unsigned long * __restrict p2, \ const unsigned long * __restrict p3, \ const unsigned long * __restrict p4) \ @@ -42,10 +40,9 @@ void xor_##flavor##_4(unsigned long bytes, unsigned long * __restrict p1, \ __xor_##flavor##_4(bytes, p1, p2, p3, p4); \ kernel_fpu_end(); \ } \ -EXPORT_SYMBOL_GPL(xor_##flavor##_4) #define MAKE_XOR_GLUE_5(flavor) \ -void xor_##flavor##_5(unsigned long bytes, unsigned long * __restrict p1, \ +static void xor_##flavor##_5(unsigned long bytes, unsigned long * __restrict p1,\ const unsigned long * __restrict p2, \ const unsigned long * __restrict p3, \ const unsigned long * __restrict p4, \ @@ -55,18 +52,26 @@ void xor_##flavor##_5(unsigned long bytes, unsigned long * __restrict p1, \ __xor_##flavor##_5(bytes, p1, p2, p3, p4, p5); \ kernel_fpu_end(); \ } \ -EXPORT_SYMBOL_GPL(xor_##flavor##_5) -#define MAKE_XOR_GLUES(flavor) \ - MAKE_XOR_GLUE_2(flavor); \ - MAKE_XOR_GLUE_3(flavor); \ - MAKE_XOR_GLUE_4(flavor); \ - MAKE_XOR_GLUE_5(flavor) +#define MAKE_XOR_GLUES(flavor) \ + MAKE_XOR_GLUE_2(flavor); \ + MAKE_XOR_GLUE_3(flavor); \ + MAKE_XOR_GLUE_4(flavor); \ + MAKE_XOR_GLUE_5(flavor); \ + \ +struct xor_block_template xor_block_##flavor = { \ + .name = __stringify(flavor), \ + .do_2 = xor_##flavor##_2, \ + .do_3 = xor_##flavor##_3, \ + .do_4 = xor_##flavor##_4, \ + .do_5 = xor_##flavor##_5, \ +} + #ifdef CONFIG_CPU_HAS_LSX MAKE_XOR_GLUES(lsx); -#endif +#endif /* CONFIG_CPU_HAS_LSX */ #ifdef CONFIG_CPU_HAS_LASX MAKE_XOR_GLUES(lasx); -#endif +#endif /* CONFIG_CPU_HAS_LASX */ diff --git a/arch/loongarch/lib/xor_template.c b/lib/raid/xor/loongarch/xor_template.c similarity index 100% rename from arch/loongarch/lib/xor_template.c rename to lib/raid/xor/loongarch/xor_template.c -- 2.47.3 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv