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[173.197.98.118]) by smtp.gmail.com with ESMTPSA id w19-20020a1709029a9300b00186b69157ecsm3660859plp.202.2023.02.04.08.33.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 04 Feb 2023 08:33:53 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; 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=eZTavF7es3O2ujG9mYHigJTrObpuqrsvusel8D8p0rM=; b=r3Td0hmalNK4UiMvKaWHjRYm9pv5EZsRMZ/gTWeX2ttFPylk1RofXrYjUUSkTs7+wP +vI/w9iqYUwRPspuaIC6dW0iiOlX2J1YsUjkDSvKPn+e3mLz3QRpAltAJiTlO3+5KcXT Tn6mFAxbxTRQsxbWzFIlO9J3/kYYDsw6uz7U5BGfnfzQeLJjqPRR42GgFUwgUWwE85TX k72PaRw+/8S/JJ7eJGRnZ2ix3E+1klUg61Itz6jM0zT/R6viFFLs28k69io+IcqW73Rj zpAQqRuTABBlnlEWIzNw5429CPHQqnZH/5YxL+qMkQlqMtP9R4XBywynk4fWV7J/rWiJ d52w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; 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=eZTavF7es3O2ujG9mYHigJTrObpuqrsvusel8D8p0rM=; b=v1hOhUBa9cEHbZpwqlLVwNL/RbEyicaES+FJ43/s3b0MwTedcKbV8GosKD90Iu0r37 bNbH+xX/3YDvlPokg4sazLLqg6hhIiXkng9vUpcuXAnqa9uBpO0hlfgF38R1x3raldz2 34Y9x0yQk9WpCCAN6N5CtlajraFRJa7MLbMrmdNwCg3Egpv/O0StgNVJMUz6ZpKS/vC8 bKxRAxtWqn+KF0h7LqGYbXaIkJYmGAT1HgERghY5AjieA/e9XFq8AY2iG5CVyhTq8ET5 FcjQz0O9217KAD6kX9SnqFLXD1DUqTSPPBsmexu2deQYtjImCYDBZCbT78/2x9iLyR3H AG9Q== X-Gm-Message-State: AO0yUKXl36ckHeMgeyOD3Xez3vjv+/0rhI3gLmFTSNldKCPzce7b6wM2 /8KTshGEGLVQ8u/0Gx2SZR6EWozCXIdI/H+L X-Google-Smtp-Source: AK7set+wjILRwjt2X/fguub1YL6UW7bAyMyeg/1vaM61qRKEoK5ufR62vNPip/yh3QyqteLOOpJyVQ== X-Received: by 2002:a17:902:d093:b0:198:ee12:ce93 with SMTP id v19-20020a170902d09300b00198ee12ce93mr2585510plv.46.1675528434063; Sat, 04 Feb 2023 08:33:54 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Cc: peter.maydell@linaro.org, Ilya Leoshkevich Subject: [PULL 26/40] tests/tcg/s390x: Add cdsg.c Date: Sat, 4 Feb 2023 06:32:56 -1000 Message-Id: <20230204163310.815536-27-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230204163310.815536-1-richard.henderson@linaro.org> References: <20230204163310.815536-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::102e; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x102e.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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1675528678593100004 Content-Type: text/plain; charset="utf-8" From: Ilya Leoshkevich Add a simple test to prevent regressions. Signed-off-by: Ilya Leoshkevich Message-Id: <20230201133257.3223115-1-iii@linux.ibm.com> Signed-off-by: Richard Henderson --- tests/tcg/s390x/cdsg.c | 93 +++++++++++++++++++++++++++++++++ tests/tcg/s390x/Makefile.target | 4 ++ 2 files changed, 97 insertions(+) create mode 100644 tests/tcg/s390x/cdsg.c diff --git a/tests/tcg/s390x/cdsg.c b/tests/tcg/s390x/cdsg.c new file mode 100644 index 0000000000..800618ff4b --- /dev/null +++ b/tests/tcg/s390x/cdsg.c @@ -0,0 +1,93 @@ +/* + * Test CDSG instruction. + * + * Increment the first half of aligned_quadword by 1, and the second half = by 2 + * from 2 threads. Verify that the result is consistent. + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ +#include +#include +#include +#include + +static volatile bool start; +typedef unsigned long aligned_quadword[2] __attribute__((__aligned__(16))); +static aligned_quadword val; +static const int n_iterations =3D 1000000; + +static inline int cdsg(unsigned long *orig0, unsigned long *orig1, + unsigned long new0, unsigned long new1, + aligned_quadword *mem) +{ + register unsigned long r0 asm("r0"); + register unsigned long r1 asm("r1"); + register unsigned long r2 asm("r2"); + register unsigned long r3 asm("r3"); + int cc; + + r0 =3D *orig0; + r1 =3D *orig1; + r2 =3D new0; + r3 =3D new1; + asm("cdsg %[r0],%[r2],%[db2]\n" + "ipm %[cc]" + : [r0] "+r" (r0) + , [r1] "+r" (r1) + , [db2] "+m" (*mem) + , [cc] "=3Dr" (cc) + : [r2] "r" (r2) + , [r3] "r" (r3) + : "cc"); + *orig0 =3D r0; + *orig1 =3D r1; + + return (cc >> 28) & 3; +} + +void *cdsg_loop(void *arg) +{ + unsigned long orig0, orig1, new0, new1; + int cc; + int i; + + while (!start) { + } + + orig0 =3D val[0]; + orig1 =3D val[1]; + for (i =3D 0; i < n_iterations;) { + new0 =3D orig0 + 1; + new1 =3D orig1 + 2; + + cc =3D cdsg(&orig0, &orig1, new0, new1, &val); + + if (cc =3D=3D 0) { + orig0 =3D new0; + orig1 =3D new1; + i++; + } else { + assert(cc =3D=3D 1); + } + } + + return NULL; +} + +int main(void) +{ + pthread_t thread; + int ret; + + ret =3D pthread_create(&thread, NULL, cdsg_loop, NULL); + assert(ret =3D=3D 0); + start =3D true; + cdsg_loop(NULL); + ret =3D pthread_join(thread, NULL); + assert(ret =3D=3D 0); + + assert(val[0] =3D=3D n_iterations * 2); + assert(val[1] =3D=3D n_iterations * 4); + + return EXIT_SUCCESS; +} diff --git a/tests/tcg/s390x/Makefile.target b/tests/tcg/s390x/Makefile.tar= get index 1d454270c0..72ad309b27 100644 --- a/tests/tcg/s390x/Makefile.target +++ b/tests/tcg/s390x/Makefile.target @@ -27,6 +27,10 @@ TESTS+=3Dnoexec TESTS+=3Ddiv TESTS+=3Dclst TESTS+=3Dlong-double +TESTS+=3Dcdsg + +cdsg: CFLAGS+=3D-pthread +cdsg: LDFLAGS+=3D-pthread =20 Z13_TESTS=3Dvistr $(Z13_TESTS): CFLAGS+=3D-march=3Dz13 -O2 --=20 2.34.1