From patchwork Wed May 16 08:34:21 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Simon Guo X-Patchwork-Id: 914274 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 40m7Mv6Q73z9s2k for ; Wed, 16 May 2018 18:46:51 +1000 (AEST) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="frSnsMOj"; dkim-atps=neutral Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 40m7Mv4l91zF1PQ for ; Wed, 16 May 2018 18:46:51 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="frSnsMOj"; dkim-atps=neutral X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=gmail.com (client-ip=2607:f8b0:400e:c00::243; helo=mail-pf0-x243.google.com; envelope-from=wei.guo.simon@gmail.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="frSnsMOj"; dkim-atps=neutral Received: from mail-pf0-x243.google.com (mail-pf0-x243.google.com [IPv6:2607:f8b0:400e:c00::243]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 40m7604K1rzF1QK for ; Wed, 16 May 2018 18:34:48 +1000 (AEST) Received: by mail-pf0-x243.google.com with SMTP id q22-v6so1444850pff.11 for ; Wed, 16 May 2018 01:34:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=ZfJIb/6+ZdJWMslf46D3OU943hDWS2mXo0NdvnB2maM=; b=frSnsMOjpo9ZsMqVjgEU24Ft1MK33GcHLhFcHXEtsKIBQRnaIBY4qIlixm/IXS+MMD A+C6ilinvkmwlIeSdZTan5gjRcU+wKfs4MPrhLZkGf/HhSb8QrYiOE04H3lMlCllu/xk GHQehjyIvR1INnHR1vUGbLIe7oT0h/JG/Lrjzpz55OiQd2zSyg9oA/2rB+9M7yLmwXB2 lWSf9W5uDtWi7MYKuKLoykMCa0QqkfO/y8Of7m32lVjYGcOkx/z4co/BVTqZE+x6XZL4 w32h80oqgzlxO61ATIqXMVZZMgs5W6xb0vZC4c0Sc8bu9ysKxzamrWF4ho19RSCPndQp 8V9Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=ZfJIb/6+ZdJWMslf46D3OU943hDWS2mXo0NdvnB2maM=; b=Ros4jMXf96xNzRbmB3LMMmcOQvlk2iLrtJDriMuGmrVVtEorbZJJ2NLvBkZTEIMVD4 nB/peSa5mapJiilfecYc0vv91pmHm5aYOypENO0faePffAtUYAROfNkegj8gn61sRkKk ooo4kPWUGoe34Fj8lgZx3fBLxSfAErLa2dt4n1TCEAigt6csk2zlhS/wvJGkNWeD8e91 7aT8TtK8chIzYwLhRaUk2ZNms8LJ0vflcaHv6kDfoGlXOSonNpHKB/Vq453rEnyn9smG jclNNgT57O2NBrMRfKhC0IhPNEdk66eBofP6DEMC1bIBmtbfg93k010n0cJtK9f20DHK Otdw== X-Gm-Message-State: ALKqPwf6zu5IjaB+SAV1yy1t7L462E8cMGzzufoM/pfaBmqQ2eiM87PP kKU/RXmSfwJoPePBvAvUzmuVxw== X-Google-Smtp-Source: AB8JxZoSQss3M4RciuH9KA2mdY3IIs7sBmzMHBYvIkw/w8KHxBQ5yznxj3vFBAIljYfqgTFP4P+THw== X-Received: by 2002:a63:7c01:: with SMTP id x1-v6mr15108407pgc.286.1526459686452; Wed, 16 May 2018 01:34:46 -0700 (PDT) Received: from simonLocalRHEL7.cn.ibm.com ([112.73.0.88]) by smtp.gmail.com with ESMTPSA id s16-v6sm2898757pfm.114.2018.05.16.01.34.43 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 16 May 2018 01:34:45 -0700 (PDT) From: wei.guo.simon@gmail.com To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH v4 4/4] powerpc:selftest update memcmp_64 selftest for VMX implementation Date: Wed, 16 May 2018 16:34:21 +0800 Message-Id: <1526459661-17323-5-git-send-email-wei.guo.simon@gmail.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1526459661-17323-1-git-send-email-wei.guo.simon@gmail.com> References: <1526459661-17323-1-git-send-email-wei.guo.simon@gmail.com> X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Naveen N. Rao" , Simon Guo , Cyril Bur Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" From: Simon Guo This patch reworked selftest memcmp_64 so that memcmp selftest can cover more test cases. It adds testcases for: - memcmp over 4K bytes size. - s1/s2 with different/random offset on 16 bytes boundary. - enter/exit_vmx_ops pairness. Signed-off-by: Simon Guo --- .../selftests/powerpc/copyloops/asm/ppc_asm.h | 4 +- .../testing/selftests/powerpc/stringloops/Makefile | 2 +- .../selftests/powerpc/stringloops/asm/ppc_asm.h | 22 +++++ .../testing/selftests/powerpc/stringloops/memcmp.c | 98 +++++++++++++++++----- 4 files changed, 101 insertions(+), 25 deletions(-) diff --git a/tools/testing/selftests/powerpc/copyloops/asm/ppc_asm.h b/tools/testing/selftests/powerpc/copyloops/asm/ppc_asm.h index 5ffe04d..dfce161 100644 --- a/tools/testing/selftests/powerpc/copyloops/asm/ppc_asm.h +++ b/tools/testing/selftests/powerpc/copyloops/asm/ppc_asm.h @@ -36,11 +36,11 @@ li r3,0 blr -FUNC_START(enter_vmx_copy) +FUNC_START(enter_vmx_ops) li r3,1 blr -FUNC_START(exit_vmx_copy) +FUNC_START(exit_vmx_ops) blr FUNC_START(memcpy_power7) diff --git a/tools/testing/selftests/powerpc/stringloops/Makefile b/tools/testing/selftests/powerpc/stringloops/Makefile index 1125e48..75a3d2fe 100644 --- a/tools/testing/selftests/powerpc/stringloops/Makefile +++ b/tools/testing/selftests/powerpc/stringloops/Makefile @@ -1,6 +1,6 @@ # SPDX-License-Identifier: GPL-2.0 # The loops are all 64-bit code -CFLAGS += -m64 +CFLAGS += -m64 -DCONFIG_KSM CFLAGS += -I$(CURDIR) TEST_GEN_PROGS := memcmp diff --git a/tools/testing/selftests/powerpc/stringloops/asm/ppc_asm.h b/tools/testing/selftests/powerpc/stringloops/asm/ppc_asm.h index 136242e..185d257 100644 --- a/tools/testing/selftests/powerpc/stringloops/asm/ppc_asm.h +++ b/tools/testing/selftests/powerpc/stringloops/asm/ppc_asm.h @@ -1,4 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _PPC_ASM_H +#define __PPC_ASM_H #include #ifndef r1 @@ -6,3 +8,23 @@ #endif #define _GLOBAL(A) FUNC_START(test_ ## A) + +#define CONFIG_ALTIVEC + +#define R14 r14 +#define R15 r15 +#define R16 r16 +#define R17 r17 +#define R18 r18 +#define R19 r19 +#define R20 r20 +#define R21 r21 +#define R22 r22 +#define R29 r29 +#define R30 r30 +#define R31 r31 + +#define STACKFRAMESIZE 256 +#define STK_REG(i) (112 + ((i)-14)*8) + +#endif diff --git a/tools/testing/selftests/powerpc/stringloops/memcmp.c b/tools/testing/selftests/powerpc/stringloops/memcmp.c index 8250db2..b5cf717 100644 --- a/tools/testing/selftests/powerpc/stringloops/memcmp.c +++ b/tools/testing/selftests/powerpc/stringloops/memcmp.c @@ -2,20 +2,40 @@ #include #include #include +#include #include "utils.h" #define SIZE 256 #define ITERATIONS 10000 +#define LARGE_SIZE (5 * 1024) +#define LARGE_ITERATIONS 1000 +#define LARGE_MAX_OFFSET 32 +#define LARGE_SIZE_START 4096 + +#define MAX_OFFSET_DIFF_S1_S2 48 + +int vmx_count; +int enter_vmx_ops(void) +{ + vmx_count++; + return 1; +} + +void exit_vmx_ops(void) +{ + vmx_count--; +} int test_memcmp(const void *s1, const void *s2, size_t n); /* test all offsets and lengths */ -static void test_one(char *s1, char *s2) +static void test_one(char *s1, char *s2, unsigned long max_offset, + unsigned long size_start, unsigned long max_size) { unsigned long offset, size; - for (offset = 0; offset < SIZE; offset++) { - for (size = 0; size < (SIZE-offset); size++) { + for (offset = 0; offset < max_offset; offset++) { + for (size = size_start; size < (max_size - offset); size++) { int x, y; unsigned long i; @@ -35,70 +55,104 @@ static void test_one(char *s1, char *s2) printf("\n"); abort(); } + + if (vmx_count != 0) { + printf("vmx enter/exit not paired.(offset:%ld size:%ld s1:%p s2:%p vc:%d\n", + offset, size, s1, s2, vmx_count); + printf("\n"); + abort(); + } } } } -static int testcase(void) +static int testcase(bool islarge) { char *s1; char *s2; unsigned long i; - s1 = memalign(128, SIZE); + unsigned long comp_size = (islarge ? LARGE_SIZE : SIZE); + unsigned long alloc_size = comp_size + MAX_OFFSET_DIFF_S1_S2; + int iterations = islarge ? LARGE_ITERATIONS : ITERATIONS; + + s1 = memalign(128, alloc_size); if (!s1) { perror("memalign"); exit(1); } - s2 = memalign(128, SIZE); + s2 = memalign(128, alloc_size); if (!s2) { perror("memalign"); exit(1); } - srandom(1); + srandom(time(0)); - for (i = 0; i < ITERATIONS; i++) { + for (i = 0; i < iterations; i++) { unsigned long j; unsigned long change; + char *rand_s1 = s1; + char *rand_s2 = s2; - for (j = 0; j < SIZE; j++) + for (j = 0; j < alloc_size; j++) s1[j] = random(); - memcpy(s2, s1, SIZE); + rand_s1 += random() % MAX_OFFSET_DIFF_S1_S2; + rand_s2 += random() % MAX_OFFSET_DIFF_S1_S2; + memcpy(rand_s2, rand_s1, comp_size); /* change one byte */ - change = random() % SIZE; - s2[change] = random() & 0xff; - - test_one(s1, s2); + change = random() % comp_size; + rand_s2[change] = random() & 0xff; + + if (islarge) + test_one(rand_s1, rand_s2, LARGE_MAX_OFFSET, + LARGE_SIZE_START, comp_size); + else + test_one(rand_s1, rand_s2, SIZE, 0, comp_size); } - srandom(1); + srandom(time(0)); - for (i = 0; i < ITERATIONS; i++) { + for (i = 0; i < iterations; i++) { unsigned long j; unsigned long change; + char *rand_s1 = s1; + char *rand_s2 = s2; - for (j = 0; j < SIZE; j++) + for (j = 0; j < alloc_size; j++) s1[j] = random(); - memcpy(s2, s1, SIZE); + rand_s1 += random() % MAX_OFFSET_DIFF_S1_S2; + rand_s2 += random() % MAX_OFFSET_DIFF_S1_S2; + memcpy(rand_s2, rand_s1, comp_size); /* change multiple bytes, 1/8 of total */ - for (j = 0; j < SIZE / 8; j++) { - change = random() % SIZE; + for (j = 0; j < comp_size / 8; j++) { + change = random() % comp_size; s2[change] = random() & 0xff; } - test_one(s1, s2); + if (islarge) + test_one(rand_s1, rand_s2, LARGE_MAX_OFFSET, + LARGE_SIZE_START, comp_size); + else + test_one(rand_s1, rand_s2, SIZE, 0, comp_size); } return 0; } +static int testcases(void) +{ + testcase(0); + testcase(1); + return 0; +} + int main(void) { - return test_harness(testcase, "memcmp"); + return test_harness(testcases, "memcmp"); }