From patchwork Mon May 3 19:59:35 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Raoni Fassina Firmino X-Patchwork-Id: 43230 X-Patchwork-Delegate: tuliom@linux.vnet.ibm.com Return-Path: X-Original-To: patchwork@sourceware.org Delivered-To: patchwork@sourceware.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id BC6863857000; Mon, 3 May 2021 19:59:44 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org BC6863857000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1620071984; bh=toMtlU5UpEVE8XGdzyxkoc4y3Lwi8wwKCjwWulrZlXs=; h=Date:To:Subject:List-Id:List-Unsubscribe:List-Archive:List-Post: List-Help:List-Subscribe:From:Reply-To:Cc:From; b=MbwAx5gFcA1B30RjoxKiHlAUb3B+nK2RUH5ZOHe7Oy9x+8xX/728WIzXJJl4R3Fhl 9SUHprffZRc3ohd7oxvZmnwBIzAK8wFB4mX7H3ckx0REwgQone/ts2IY/LWG3oJVGi onFrSLX5pe/kYvgSSiCl5igyvAdCsSHjxfoUsivc= X-Original-To: libc-alpha@sourceware.org Delivered-To: libc-alpha@sourceware.org Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) by sourceware.org (Postfix) with ESMTPS id 636B73857000 for ; 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Mon, 3 May 2021 19:59:39 GMT Received: from b01ledav006.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id C3245AC059; Mon, 3 May 2021 19:59:39 +0000 (GMT) Received: from b01ledav006.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id B821DAC060; Mon, 3 May 2021 19:59:38 +0000 (GMT) Received: from work-tp (unknown [9.65.194.70]) by b01ledav006.gho.pok.ibm.com (Postfix) with ESMTPS; Mon, 3 May 2021 19:59:38 +0000 (GMT) Date: Mon, 3 May 2021 16:59:35 -0300 To: libc-alpha@sourceware.org Subject: [PATCH] powerpc64le: Fix ifunc selection for memset, memmove, bzero and bcopy Message-ID: <20210503195935.je5jbi6hjbiiaovs@work-tp> Mail-Followup-To: libc-alpha@sourceware.org, tuliom@linux.ibm.com, lamm@linux.ibm.com MIME-Version: 1.0 Content-Disposition: inline X-TM-AS-GCONF: 00 X-Proofpoint-GUID: Tw5lNJft--EHMfA3b1GV-uxJibpywYXs X-Proofpoint-ORIG-GUID: Tw5lNJft--EHMfA3b1GV-uxJibpywYXs X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.391, 18.0.761 definitions=2021-05-03_16:2021-05-03, 2021-05-03 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 clxscore=1015 priorityscore=1501 mlxlogscore=645 mlxscore=0 spamscore=0 impostorscore=0 lowpriorityscore=0 phishscore=0 suspectscore=0 malwarescore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104060000 definitions=main-2105030132 X-Spam-Status: No, score=-11.7 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_EF, GIT_PATCH_0, RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H2, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Raoni Fassina Firmino via Libc-alpha From: Raoni Fassina Firmino Reply-To: Raoni Fassina Firmino Cc: tuliom@linux.ibm.com Errors-To: libc-alpha-bounces@sourceware.org Sender: "Libc-alpha" The hwcap2 check for the aforementioned functions should check for both PPC_FEATURE2_ARCH_3_1 and PPC_FEATURE2_HAS_ISEL but was mistakenly checking for any one of them, enabling isa 3.1 version of the functions in incompatible processors, like POWER8. --- sysdeps/powerpc/powerpc64/multiarch/bcopy.c | 8 ++++---- sysdeps/powerpc/powerpc64/multiarch/bzero.c | 3 ++- .../powerpc64/multiarch/ifunc-impl-list.c | 20 +++++++++---------- sysdeps/powerpc/powerpc64/multiarch/memmove.c | 8 ++++---- sysdeps/powerpc/powerpc64/multiarch/memset.c | 3 ++- 5 files changed, 22 insertions(+), 20 deletions(-) diff --git a/sysdeps/powerpc/powerpc64/multiarch/bcopy.c b/sysdeps/powerpc/powerpc64/multiarch/bcopy.c index 2840b17fdfd3..02eb1e6a9f66 100644 --- a/sysdeps/powerpc/powerpc64/multiarch/bcopy.c +++ b/sysdeps/powerpc/powerpc64/multiarch/bcopy.c @@ -28,10 +28,10 @@ extern __typeof (bcopy) __bcopy_power10 attribute_hidden; libc_ifunc (bcopy, #ifdef __LITTLE_ENDIAN__ - hwcap2 & (PPC_FEATURE2_ARCH_3_1 | - PPC_FEATURE2_HAS_ISEL) - && (hwcap & PPC_FEATURE_HAS_VSX) - ? __bcopy_power10 : + (hwcap2 & PPC_FEATURE2_ARCH_3_1 + && hwcap2 & PPC_FEATURE2_HAS_ISEL + && hwcap & PPC_FEATURE_HAS_VSX) + ? __bcopy_power10 : #endif (hwcap & PPC_FEATURE_HAS_VSX) ? __bcopy_power7 diff --git a/sysdeps/powerpc/powerpc64/multiarch/bzero.c b/sysdeps/powerpc/powerpc64/multiarch/bzero.c index 50a5320c6650..660d7dc686ec 100644 --- a/sysdeps/powerpc/powerpc64/multiarch/bzero.c +++ b/sysdeps/powerpc/powerpc64/multiarch/bzero.c @@ -33,7 +33,8 @@ extern __typeof (bzero) __bzero_power10 attribute_hidden; libc_ifunc (__bzero, # ifdef __LITTLE_ENDIAN__ - (hwcap2 & (PPC_FEATURE2_ARCH_3_1 | PPC_FEATURE2_HAS_ISEL) + (hwcap2 & PPC_FEATURE2_ARCH_3_1 + && hwcap2 & PPC_FEATURE2_HAS_ISEL && hwcap & PPC_FEATURE_HAS_VSX) ? __bzero_power10 : # endif diff --git a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c index 49d9a33e65fe..b123c6a3d328 100644 --- a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c +++ b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c @@ -75,9 +75,9 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, IFUNC_IMPL (i, name, memmove, #ifdef __LITTLE_ENDIAN__ IFUNC_IMPL_ADD (array, i, memmove, - hwcap2 & (PPC_FEATURE2_ARCH_3_1 | - PPC_FEATURE2_HAS_ISEL) - && (hwcap & PPC_FEATURE_HAS_VSX), + hwcap2 & PPC_FEATURE2_ARCH_3_1 + && hwcap2 & PPC_FEATURE2_HAS_ISEL + && hwcap & PPC_FEATURE_HAS_VSX, __memmove_power10) #endif IFUNC_IMPL_ADD (array, i, memmove, hwcap & PPC_FEATURE_HAS_VSX, @@ -88,8 +88,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, IFUNC_IMPL (i, name, memset, #ifdef __LITTLE_ENDIAN__ IFUNC_IMPL_ADD (array, i, memset, - hwcap2 & (PPC_FEATURE2_ARCH_3_1 | - PPC_FEATURE2_HAS_ISEL) + hwcap2 & PPC_FEATURE2_ARCH_3_1 + && hwcap2 & PPC_FEATURE2_HAS_ISEL && hwcap & PPC_FEATURE_HAS_VSX, __memset_power10) #endif @@ -196,8 +196,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, IFUNC_IMPL (i, name, bzero, #ifdef __LITTLE_ENDIAN__ IFUNC_IMPL_ADD (array, i, bzero, - hwcap2 & (PPC_FEATURE2_ARCH_3_1 | - PPC_FEATURE2_HAS_ISEL) + hwcap2 & PPC_FEATURE2_ARCH_3_1 + && hwcap2 & PPC_FEATURE2_HAS_ISEL && hwcap & PPC_FEATURE_HAS_VSX, __bzero_power10) #endif @@ -215,9 +215,9 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, IFUNC_IMPL (i, name, bcopy, #ifdef __LITTLE_ENDIAN__ IFUNC_IMPL_ADD (array, i, bcopy, - hwcap2 & (PPC_FEATURE2_ARCH_3_1 | - PPC_FEATURE2_HAS_ISEL) - && (hwcap & PPC_FEATURE_HAS_VSX), + hwcap2 & PPC_FEATURE2_ARCH_3_1 + && hwcap2 & PPC_FEATURE2_HAS_ISEL + && hwcap & PPC_FEATURE_HAS_VSX, __bcopy_power10) #endif IFUNC_IMPL_ADD (array, i, bcopy, hwcap & PPC_FEATURE_HAS_VSX, diff --git a/sysdeps/powerpc/powerpc64/multiarch/memmove.c b/sysdeps/powerpc/powerpc64/multiarch/memmove.c index 420c2f279af3..637b2cbf7f35 100644 --- a/sysdeps/powerpc/powerpc64/multiarch/memmove.c +++ b/sysdeps/powerpc/powerpc64/multiarch/memmove.c @@ -36,10 +36,10 @@ extern __typeof (__redirect_memmove) __memmove_power10 attribute_hidden; libc_ifunc (__libc_memmove, #ifdef __LITTLE_ENDIAN__ - hwcap2 & (PPC_FEATURE2_ARCH_3_1 | - PPC_FEATURE2_HAS_ISEL) - && (hwcap & PPC_FEATURE_HAS_VSX) - ? __memmove_power10 : + (hwcap2 & PPC_FEATURE2_ARCH_3_1 + && hwcap2 & PPC_FEATURE2_HAS_ISEL + && hwcap & PPC_FEATURE_HAS_VSX) + ? __memmove_power10 : #endif (hwcap & PPC_FEATURE_HAS_VSX) ? __memmove_power7 diff --git a/sysdeps/powerpc/powerpc64/multiarch/memset.c b/sysdeps/powerpc/powerpc64/multiarch/memset.c index 6562646dffcf..5994bf02e622 100644 --- a/sysdeps/powerpc/powerpc64/multiarch/memset.c +++ b/sysdeps/powerpc/powerpc64/multiarch/memset.c @@ -41,7 +41,8 @@ extern __typeof (__redirect_memset) __memset_power10 attribute_hidden; ifunc symbol properly. */ libc_ifunc (__libc_memset, # ifdef __LITTLE_ENDIAN__ - (hwcap2 & (PPC_FEATURE2_ARCH_3_1 | PPC_FEATURE2_HAS_ISEL) + (hwcap2 & PPC_FEATURE2_ARCH_3_1 + && hwcap2 & PPC_FEATURE2_HAS_ISEL && hwcap & PPC_FEATURE_HAS_VSX) ? __memset_power10 : # endif