From patchwork Mon Aug 29 11:45:07 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cornelia Huck X-Patchwork-Id: 663657 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3sN9hG6wBxz9sf6 for ; Mon, 29 Aug 2016 22:19:58 +1000 (AEST) Received: from localhost ([::1]:43024 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1beLXg-0004E5-VW for incoming@patchwork.ozlabs.org; Mon, 29 Aug 2016 08:19:57 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:45386) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1beL0g-0006BL-Lm for qemu-devel@nongnu.org; Mon, 29 Aug 2016 07:46:06 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1beL0X-0001OO-SS for qemu-devel@nongnu.org; Mon, 29 Aug 2016 07:45:49 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:53149 helo=mx0a-001b2d01.pphosted.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1beL0X-0001Ny-NK for qemu-devel@nongnu.org; Mon, 29 Aug 2016 07:45:41 -0400 Received: from pps.filterd (m0098420.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.11/8.16.0.11) with SMTP id u7TBhpsv112770 for ; Mon, 29 Aug 2016 07:45:41 -0400 Received: from e06smtp14.uk.ibm.com (e06smtp14.uk.ibm.com [195.75.94.110]) by mx0b-001b2d01.pphosted.com with ESMTP id 253r51a27e-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Mon, 29 Aug 2016 07:45:41 -0400 Received: from localhost by e06smtp14.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Mon, 29 Aug 2016 12:45:37 +0100 X-IBM-Helo: d06dlp01.portsmouth.uk.ibm.com X-IBM-MailFrom: cornelia.huck@de.ibm.com X-IBM-RcptTo: qemu-devel@nongnu.org Received: from b06cxnps4074.portsmouth.uk.ibm.com (d06relay11.portsmouth.uk.ibm.com [9.149.109.196]) by d06dlp01.portsmouth.uk.ibm.com (Postfix) with ESMTP id 3449F17D8056 for ; Mon, 29 Aug 2016 12:47:25 +0100 (BST) Received: from d06av05.portsmouth.uk.ibm.com (d06av05.portsmouth.uk.ibm.com [9.149.37.229]) by b06cxnps4074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id u7TBjaCw23920962 for ; Mon, 29 Aug 2016 11:45:36 GMT Received: from d06av05.portsmouth.uk.ibm.com (localhost [127.0.0.1]) by d06av05.portsmouth.uk.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id u7TBjaWB009536 for ; Mon, 29 Aug 2016 05:45:36 -0600 Received: from gondolin.boeblingen.de.ibm.com (dyn-9-152-224-137.boeblingen.de.ibm.com [9.152.224.137]) by d06av05.portsmouth.uk.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id u7TBjW4X009268 (version=TLSv1/SSLv3 cipher=AES256-SHA256 bits=256 verify=NO); Mon, 29 Aug 2016 05:45:36 -0600 From: Cornelia Huck To: qemu-devel@nongnu.org Date: Mon, 29 Aug 2016 13:45:07 +0200 X-Mailer: git-send-email 2.9.3 In-Reply-To: <20160829114530.10842-1-cornelia.huck@de.ibm.com> References: <20160829114530.10842-1-cornelia.huck@de.ibm.com> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 16082911-0016-0000-0000-00000226CBA2 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 16082911-0017-0000-0000-000022C84DB0 Message-Id: <20160829114530.10842-16-cornelia.huck@de.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2016-08-29_05:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=1 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1604210000 definitions=main-1608290119 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] X-Received-From: 148.163.158.5 Subject: [Qemu-devel] [PATCH for-2.8 15/38] s390x/cpumodel: generate CPU feature group lists X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Cornelia Huck , borntraeger@de.ibm.com, jfrei@linux.vnet.ibm.com, agraf@suse.de, David Hildenbrand Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: David Hildenbrand Feature groups will be very helpful to reduce the amount of features typically available in sane configurations. E.g. the MSA facilities introduced loads of subfunctions, which could - in theory - go away in the future, but we want to avoid reporting hundrets of features to the user if usually all of them are in place. Groups only contain features that were introduced in one shot, not just random features. Therefore, groups can never change. This is an important property regarding migration. Acked-by: Cornelia Huck Signed-off-by: David Hildenbrand Message-Id: <1472062266-53206-7-git-send-email-dahi@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck --- target-s390x/gen-features.c | 80 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 80 insertions(+) diff --git a/target-s390x/gen-features.c b/target-s390x/gen-features.c index db63389..2ae4405 100644 --- a/target-s390x/gen-features.c +++ b/target-s390x/gen-features.c @@ -178,6 +178,35 @@ S390_FEAT_MSA_EXT_5, \ S390_FEAT_PPNO_SHA_512_DRNG +/* cpu feature groups */ +static uint16_t group_PLO[] = { + S390_FEAT_GROUP_PLO, +}; +static uint16_t group_TOD_CLOCK_STEERING[] = { + S390_FEAT_GROUP_TOD_CLOCK_STEERING, +}; +static uint16_t group_GEN13_PTFF[] = { + S390_FEAT_GROUP_GEN13_PTFF, +}; +static uint16_t group_MSA[] = { + S390_FEAT_GROUP_MSA, +}; +static uint16_t group_MSA_EXT_1[] = { + S390_FEAT_GROUP_MSA_EXT_1, +}; +static uint16_t group_MSA_EXT_2[] = { + S390_FEAT_GROUP_MSA_EXT_2, +}; +static uint16_t group_MSA_EXT_3[] = { + S390_FEAT_GROUP_MSA_EXT_3, +}; +static uint16_t group_MSA_EXT_4[] = { + S390_FEAT_GROUP_MSA_EXT_4, +}; +static uint16_t group_MSA_EXT_5[] = { + S390_FEAT_GROUP_MSA_EXT_5, +}; + /* base features in order of release */ static uint16_t base_GEN7_GA1[] = { S390_FEAT_GROUP_PLO, @@ -431,6 +460,34 @@ static CpuFeatDefSpec CpuFeatDef[] = { CPU_FEAT_INITIALIZER(GEN13_GA2), }; +#define FEAT_GROUP_INITIALIZER(_name) \ + { \ + .name = "S390_FEAT_GROUP_LIST_" #_name, \ + .bits = \ + { .data = group_##_name, \ + .len = ARRAY_SIZE(group_##_name) }, \ + } + +typedef struct { + const char *name; + BitSpec bits; +} FeatGroupDefSpec; + +/******************************* + * feature groups + *******************************/ +static FeatGroupDefSpec FeatGroupDef[] = { + FEAT_GROUP_INITIALIZER(PLO), + FEAT_GROUP_INITIALIZER(TOD_CLOCK_STEERING), + FEAT_GROUP_INITIALIZER(GEN13_PTFF), + FEAT_GROUP_INITIALIZER(MSA), + FEAT_GROUP_INITIALIZER(MSA_EXT_1), + FEAT_GROUP_INITIALIZER(MSA_EXT_2), + FEAT_GROUP_INITIALIZER(MSA_EXT_3), + FEAT_GROUP_INITIALIZER(MSA_EXT_4), + FEAT_GROUP_INITIALIZER(MSA_EXT_5), +}; + static void set_bits(uint64_t list[], BitSpec bits) { uint32_t i; @@ -488,6 +545,28 @@ static void print_feature_defs(void) } } +static void print_feature_group_defs(void) +{ + int i, j; + + printf("\n/* CPU feature group list data */\n"); + + for (i = 0; i < ARRAY_SIZE(FeatGroupDef); i++) { + uint64_t feat[S390_FEAT_MAX / 64 + 1] = {}; + + set_bits(feat, FeatGroupDef[i].bits); + printf("#define %s\t", FeatGroupDef[i].name); + for (j = 0; j < ARRAY_SIZE(feat); j++) { + printf("0x%016"PRIx64"UL", feat[j]); + if (j < ARRAY_SIZE(feat) - 1) { + printf(","); + } else { + printf("\n"); + } + } + } +} + int main(int argc, char *argv[]) { printf("/*\n" @@ -502,6 +581,7 @@ int main(int argc, char *argv[]) " */\n\n" "#ifndef %s\n#define %s\n", __FILE__, _YEARS, _NAME_H, _NAME_H); print_feature_defs(); + print_feature_group_defs(); printf("\n#endif\n"); return 0; }