From patchwork Fri Sep 15 16:42:15 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Richard Henderson X-Patchwork-Id: 1835074 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=linaro.org header.i=@linaro.org header.a=rsa-sha256 header.s=google header.b=ZRkTKckm; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=patchwork.ozlabs.org) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4RnKmk5T3Lz1yhR for ; Sat, 16 Sep 2023 02:45:10 +1000 (AEST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qhBtv-0004Rb-Va; Fri, 15 Sep 2023 12:42:40 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qhBtu-0004QZ-6p for qemu-devel@nongnu.org; Fri, 15 Sep 2023 12:42:38 -0400 Received: from mail-pf1-x431.google.com ([2607:f8b0:4864:20::431]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1qhBts-0004t4-KD for qemu-devel@nongnu.org; Fri, 15 Sep 2023 12:42:37 -0400 Received: by mail-pf1-x431.google.com with SMTP id d2e1a72fcca58-68fb2e9ebcdso1944656b3a.2 for ; Fri, 15 Sep 2023 09:42:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1694796155; x=1695400955; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=q1HqpqG1SCyo6N98nxssbdjX05tzqj9OxhfNx1abB4M=; b=ZRkTKckmQP4GfMt7g1ytDalJALVslhW/D0RWtSEo92CRpLuuL1T0ginyFTDaeDm7AT GTetWbC6pWl0p7xFPvCnnfTia73g9DNvXzwkfsXtlLU+bOxbJk60dAMY8Aozl0b9+KuI AJ0gJegSjZPnHpzV28HGHxWcELqSJwBqW3q6+eNVQsLDw3ro7ev0oZ6ZcW7OHimVa4d7 GnceHVWYn+FRji96PrbjdF7JS6iivlZ21dmHzQ5cM2+jDryfV9y6oKGqXE41ffAdZJI1 W2UJqrV/3PTpODVFFd6Sx1R7zHkiQFrAKTFzuQmbvt4yh5/FMF32n+vVJ/IAjejwrI1q 1b2w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1694796155; x=1695400955; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=q1HqpqG1SCyo6N98nxssbdjX05tzqj9OxhfNx1abB4M=; b=THwjpuVFhCu7ILURIDXUv1Jr5sRGU7q8TxdqPKX7yqREFwcS6533o1WhtX5IkohRg0 xn0IqahycIku76PBmkknc0WiTOSo9U8PUmirOmZWVhnnPNdfBK2YaoRHeYpEICYvOFNV 5uxP+MZiGioTr3BLLEbEBEDfid6Cai107/cskwU9VGN0rNENOJQbhaha98lQ6T0gCsqq B7cfmkxRb3SE6PM6aTyIrdkKFjNwDT7pHC0ybgJoanI4Ejmm25lZXqhLrBDKKhpxZACr jN0dQFhVKxVbEx1KioKDUBQZe+U/zKKlGrSsekaLgcjlHTl6FZ2iccl/hrwgr1TMMaDI X8eQ== X-Gm-Message-State: AOJu0Yw2dyS0CamPz8MxiBEABMRgSA82SYETMfc5I99kgTx1/UAeasZj l7Ekt5k6RmEIxtsDgzpbY736JGNnxdzomKh9vmE= X-Google-Smtp-Source: AGHT+IG8W48SftxAwF1XWNJqLqS4l+mZccs5X3qNWRJZbWkdeB1r7PDLnd3P9LbBZSUlgDeLFCAx2Q== X-Received: by 2002:a05:6a20:12c4:b0:159:b45e:1c7d with SMTP id v4-20020a056a2012c400b00159b45e1c7dmr2651096pzg.15.1694796155282; Fri, 15 Sep 2023 09:42:35 -0700 (PDT) Received: from stoup.. ([71.212.131.115]) by smtp.gmail.com with ESMTPSA id s187-20020a6377c4000000b00577f55e4a4esm3010087pgc.20.2023.09.15.09.42.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 15 Sep 2023 09:42:34 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= Subject: [PULL 03/19] target/s390x: Use clmul_8* routines Date: Fri, 15 Sep 2023 09:42:15 -0700 Message-Id: <20230915164231.123580-4-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230915164231.123580-1-richard.henderson@linaro.org> References: <20230915164231.123580-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::431; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x431.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham 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: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Use generic routines for 8-bit carry-less multiply. Remove our local version of galois_multiply8. Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Richard Henderson --- target/s390x/tcg/vec_int_helper.c | 32 ++++++++++++++++++++++++++++--- 1 file changed, 29 insertions(+), 3 deletions(-) diff --git a/target/s390x/tcg/vec_int_helper.c b/target/s390x/tcg/vec_int_helper.c index 53ab5c5eb3..edff4d6b2b 100644 --- a/target/s390x/tcg/vec_int_helper.c +++ b/target/s390x/tcg/vec_int_helper.c @@ -14,6 +14,7 @@ #include "vec.h" #include "exec/helper-proto.h" #include "tcg/tcg-gvec-desc.h" +#include "crypto/clmul.h" static bool s390_vec_is_zero(const S390Vector *v) { @@ -179,7 +180,6 @@ static uint##TBITS##_t galois_multiply##BITS(uint##TBITS##_t a, \ } \ return res; \ } -DEF_GALOIS_MULTIPLY(8, 16) DEF_GALOIS_MULTIPLY(16, 32) DEF_GALOIS_MULTIPLY(32, 64) @@ -203,6 +203,34 @@ static S390Vector galois_multiply64(uint64_t a, uint64_t b) return res; } +/* + * There is no carry across the two doublewords, so their order does + * not matter. Nor is there partial overlap between registers. + */ +static inline uint64_t do_gfma8(uint64_t n, uint64_t m, uint64_t a) +{ + return clmul_8x4_even(n, m) ^ clmul_8x4_odd(n, m) ^ a; +} + +void HELPER(gvec_vgfm8)(void *v1, const void *v2, const void *v3, uint32_t d) +{ + uint64_t *q1 = v1; + const uint64_t *q2 = v2, *q3 = v3; + + q1[0] = do_gfma8(q2[0], q3[0], 0); + q1[1] = do_gfma8(q2[1], q3[1], 0); +} + +void HELPER(gvec_vgfma8)(void *v1, const void *v2, const void *v3, + const void *v4, uint32_t desc) +{ + uint64_t *q1 = v1; + const uint64_t *q2 = v2, *q3 = v3, *q4 = v4; + + q1[0] = do_gfma8(q2[0], q3[0], q4[0]); + q1[1] = do_gfma8(q2[1], q3[1], q4[1]); +} + #define DEF_VGFM(BITS, TBITS) \ void HELPER(gvec_vgfm##BITS)(void *v1, const void *v2, const void *v3, \ uint32_t desc) \ @@ -220,7 +248,6 @@ void HELPER(gvec_vgfm##BITS)(void *v1, const void *v2, const void *v3, \ s390_vec_write_element##TBITS(v1, i, d); \ } \ } -DEF_VGFM(8, 16) DEF_VGFM(16, 32) DEF_VGFM(32, 64) @@ -257,7 +284,6 @@ void HELPER(gvec_vgfma##BITS)(void *v1, const void *v2, const void *v3, \ s390_vec_write_element##TBITS(v1, i, d); \ } \ } -DEF_VGFMA(8, 16) DEF_VGFMA(16, 32) DEF_VGFMA(32, 64)