From patchwork Mon Oct 21 00:29:30 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Biggers X-Patchwork-Id: 13843419 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 72FA4D3C935 for ; Mon, 21 Oct 2024 00:42:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=m3rDfm4UhSvYDcfD2TRBOyv9VM37DFuFe+84hesOZ54=; b=jmHTBmcVCXExIgAwPz6TuP7ywI BPSwn+aWxUAI3+VsmPRpuDYifpVgAjtdRxfb5a6xYhaGl+Iq+jghvZfTY3/RQ0TTCNFq4cwtBCMVl Ry0GFZrR48wPCPCHZbUR44K+Ak6a4345YF8qwb3HV4mUgV3E3GwuCw2I4lk9NJoAQKfgSCSZWjWXB 0Hq/BvfE6p9XI8Wyo0C5vZRE0eqn0Y6ILVplOlleJo2s1Mj8Ls33dzcyh1WriEQfHco962hOx7JMj MNtgA9mc8rl3upWtV1ELV+djOFCdDAuFbCa//t8R3xivx50rFTkEeRGr7X9tQ1Wt+wFImjMVtEnZP KnVqmTTw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1t2gV6-00000005kJc-2LpP; Mon, 21 Oct 2024 00:42:24 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1t2gJ3-00000005hXQ-2MWY; Mon, 21 Oct 2024 00:30:05 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 454285C58D3; Mon, 21 Oct 2024 00:29:52 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D2FCCC4CEF6; Mon, 21 Oct 2024 00:29:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1729470596; bh=AME2Y9rGG1BidsZz5nyWy4uPywdMlCj30lctBBonXoo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=GZ1FeJTr79DIGfhSNnnohZQidrpLUDVGtJGQtNO2L6b37sY4w4ee+R5ExaFPh8kvd 6D8uuQHeMOi4LE1rrir8M2SOyLv9IS+w6dNvRPpiCNolOmTIPDYpA0/EjR99DxqGly A1Gtyrzusjzd6qlJj69X2P92pZsd9IlpdaCUNpsNlIEYMpuETvOpGcllZLICy7Jshf 5iPmCj7NhIC1t8UGXPS5Vkc3WlhqBhjSu8MlCHnHFn7c2DbWJGZKCyvbLACn8/18B1 R0mKDvJ5oaKqIlp7l9EK5yI9CMa5fTRTG78L3kKpF5+1zNhwmAZ0mYnicgFWQkhpuD yF/OK73SRunbA== From: Eric Biggers To: linux-kernel@vger.kernel.org Cc: linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-crypto@vger.kernel.org, linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-mips@vger.kernel.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, loongarch@lists.linux.dev, sparclinux@vger.kernel.org, x86@kernel.org Subject: [PATCH 10/15] x86/crc32: update prototype for crc32_pclmul_le_16() Date: Sun, 20 Oct 2024 17:29:30 -0700 Message-ID: <20241021002935.325878-11-ebiggers@kernel.org> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241021002935.325878-1-ebiggers@kernel.org> References: <20241021002935.325878-1-ebiggers@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241020_172957_846824_05C10E83 X-CRM114-Status: GOOD ( 12.39 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Eric Biggers - Change the len parameter from unsigned int to size_t, so that the library function which takes a size_t can safely use this code. - Move the crc parameter to the front, as this is the usual convention. Signed-off-by: Eric Biggers --- arch/x86/crypto/crc32-pclmul_asm.S | 19 +++++++++---------- arch/x86/crypto/crc32-pclmul_glue.c | 4 ++-- 2 files changed, 11 insertions(+), 12 deletions(-) diff --git a/arch/x86/crypto/crc32-pclmul_asm.S b/arch/x86/crypto/crc32-pclmul_asm.S index 5d31137e2c7df..f9637789cac19 100644 --- a/arch/x86/crypto/crc32-pclmul_asm.S +++ b/arch/x86/crypto/crc32-pclmul_asm.S @@ -56,30 +56,29 @@ .octa 0x00000001F701164100000001DB710641 #define CONSTANT %xmm0 #ifdef __x86_64__ -#define BUF %rdi -#define LEN %rsi -#define CRC %edx +#define CRC %edi +#define BUF %rsi +#define LEN %rdx #else -#define BUF %eax -#define LEN %edx -#define CRC %ecx +#define CRC %eax +#define BUF %edx +#define LEN %ecx #endif .text /** * Calculate crc32 - * BUF - buffer (16 bytes aligned) - * LEN - sizeof buffer (16 bytes aligned), LEN should be grater than 63 * CRC - initial crc32 + * BUF - buffer (16 bytes aligned) + * LEN - sizeof buffer (16 bytes aligned), LEN should be greater than 63 * return %eax crc32 - * uint crc32_pclmul_le_16(unsigned char const *buffer, - * size_t len, uint crc32) + * u32 crc32_pclmul_le_16(u32 crc, const u8 *buffer, size_t len); */ SYM_FUNC_START(crc32_pclmul_le_16) /* buffer and buffer size are 16 bytes aligned */ movdqa (BUF), %xmm1 movdqa 0x10(BUF), %xmm2 diff --git a/arch/x86/crypto/crc32-pclmul_glue.c b/arch/x86/crypto/crc32-pclmul_glue.c index 9f5e342b9845d..9d14eac51c5bb 100644 --- a/arch/x86/crypto/crc32-pclmul_glue.c +++ b/arch/x86/crypto/crc32-pclmul_glue.c @@ -44,11 +44,11 @@ #define PCLMUL_MIN_LEN 64L /* minimum size of buffer * for crc32_pclmul_le_16 */ #define SCALE_F 16L /* size of xmm register */ #define SCALE_F_MASK (SCALE_F - 1) -u32 crc32_pclmul_le_16(unsigned char const *buffer, size_t len, u32 crc32); +u32 crc32_pclmul_le_16(u32 crc, const u8 *buffer, size_t len); static u32 __attribute__((pure)) crc32_pclmul_le(u32 crc, unsigned char const *p, size_t len) { unsigned int iquotient; @@ -69,11 +69,11 @@ static u32 __attribute__((pure)) } iquotient = len & (~SCALE_F_MASK); iremainder = len & SCALE_F_MASK; kernel_fpu_begin(); - crc = crc32_pclmul_le_16(p, iquotient, crc); + crc = crc32_pclmul_le_16(crc, p, iquotient); kernel_fpu_end(); if (iremainder) crc = crc32_le(crc, p + iquotient, iremainder);