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GET /api/patches/2195370/?format=api
{ "id": 2195370, "url": "http://patchwork.ozlabs.org/api/patches/2195370/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260210214044.1174699-3-iii@linux.ibm.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260210214044.1174699-3-iii@linux.ibm.com>", "list_archive_url": null, "date": "2026-02-10T21:39:01", "name": "[v5,2/5] target/s390x: Extract s390_get_bfp_rounding_mode()", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "e5c30cda70c8c767855c3e72ce9c56b08c52f29a", "submitter": { "id": 74525, "url": "http://patchwork.ozlabs.org/api/people/74525/?format=api", "name": "Ilya Leoshkevich", "email": "iii@linux.ibm.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260210214044.1174699-3-iii@linux.ibm.com/mbox/", "series": [ { "id": 491741, "url": "http://patchwork.ozlabs.org/api/series/491741/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=491741", "date": "2026-02-10T21:39:00", "name": "target/s390x: Implement DIVIDE TO INTEGER", "version": 5, "mbox": "http://patchwork.ozlabs.org/series/491741/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2195370/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2195370/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256\n header.s=pp1 header.b=OJswlxWn;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc\n :content-transfer-encoding:date:from:in-reply-to:message-id\n :mime-version:references:subject:to; s=pp1; bh=cwX9q7/To/imUVZCL\n OGfQq71t0LH6eYW7EMGrK+pwsg=; b=OJswlxWncBdZhR+eg/K8N3lF0Ny+Q6Dfz\n l/h3gkDQMTCr2UALKZlT41KlpEQxwBVgCL22UTsIF/XNoQCYWLmp5K8epIfWfimJ\n 7YymJlrXi5x9GFvIZHnM5cNNF53T3tc0mTN4OXOGoZLM5x4GabzcdWs9ky4QFAT5\n CkurG4yxxJ7l4+bosmdDLVKKzuCnryfB1l8xBcb40rH6369LwRZQFniLYGthT7vo\n EV+9D5b2cBbirOITF1jdnTep8kOhSi5IY5/ZvoBYDrg12pPMeDXMgGJP7Vog8fY/\n CbaMyiW+AWfPgLE7N3g6fPOfg6YBMrqzmL9XkNGM0/9XIDFfqnvOw==", "From": "Ilya Leoshkevich <iii@linux.ibm.com>", "To": "Thomas Huth <thuth@redhat.com>,\n Richard Henderson <richard.henderson@linaro.org>", "Cc": "David Hildenbrand <david@kernel.org>, qemu-s390x@nongnu.org,\n qemu-devel@nongnu.org, Ilya Leoshkevich <iii@linux.ibm.com>", "Subject": "[PATCH v5 2/5] target/s390x: Extract s390_get_bfp_rounding_mode()", "Date": "Tue, 10 Feb 2026 22:39:01 +0100", "Message-ID": "<20260210214044.1174699-3-iii@linux.ibm.com>", "X-Mailer": "git-send-email 2.52.0", "In-Reply-To": "<20260210214044.1174699-1-iii@linux.ibm.com>", "References": "<20260210214044.1174699-1-iii@linux.ibm.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-TM-AS-GCONF": "00", "X-Authority-Analysis": "v=2.4 cv=KZnfcAYD c=1 sm=1 tr=0 ts=698ba5e1 cx=c_pps\n a=bLidbwmWQ0KltjZqbj+ezA==:117 a=bLidbwmWQ0KltjZqbj+ezA==:17\n a=HzLeVaNsDn8A:10 a=VkNPw1HP01LnGYTKEx00:22 a=Mpw57Om8IfrbqaoTuvik:22\n a=GgsMoib0sEa3-_RKJdDe:22 a=KKAkSRfTAAAA:8 a=20KFwNOVAAAA:8 a=VnNF1IyMAAAA:8\n a=legnL2kWL1UyQeN_ircA:9 a=cvBusfyB2V15izCimMoJ:22", "X-Proofpoint-Spam-Details-Enc": "AW1haW4tMjYwMjEwMDE3NiBTYWx0ZWRfX1OOEx+95INCQ\n Q238lC7nIuzt/T0IHp20ALE9aeTJzSlSSW75nHno1TlleHB8znkMFQ9+rHaXQDbBhpHK5NJi+5X\n kPdl+qKTSqrYrbdqOJ+LS2gXV6tyHb30s5Ji1M5P5mdfEDVfSjpuCTaif9JEFbDoeVx42SqXnVz\n CaUFLqQeZTUtvLWDIqoXbpmFS6QBki6XxeATBtIyVBIotbg6Lzpf+2rE7KDQiq0HekVorl0eZJ1\n SkCPHkec1eDs13IExTXVWRYXJ2OY9mpqvsmjUDrz/5MpBUaL7b5cKci2EzhiATjIUThtRyqpIvz\n 03mg9c3gzSK+nEM96PXLYAWmpnomObFpVMZnDUvK3NYQjCs+7yebgcyh0W3vY+Jv5Hcybwhmw9h\n rRhP5uCMjgi4zShUWt1EvjSswVfLogVfVQS/rM6xX0OmQhQMz4+gNVH+I3i+ynncQ1ZFHb7a4SX\n jtR6qiBvQmPNkEelyYg==", "X-Proofpoint-ORIG-GUID": "siuTtXxUgqmb4Q022Iy7ek2B9JipZ6BQ", "X-Proofpoint-GUID": "siuTtXxUgqmb4Q022Iy7ek2B9JipZ6BQ", "X-Proofpoint-Virus-Version": "vendor=baseguard\n engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49\n definitions=2026-02-10_03,2026-02-10_02,2025-10-01_01", "X-Proofpoint-Spam-Details": "rule=outbound_notspam policy=outbound score=0\n spamscore=0 impostorscore=0 bulkscore=0 priorityscore=1501 adultscore=0\n clxscore=1015 suspectscore=0 phishscore=0 malwarescore=0 lowpriorityscore=0\n classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0\n reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2602100176", "Received-SPF": "pass client-ip=148.163.156.1; envelope-from=iii@linux.ibm.com;\n helo=mx0a-001b2d01.pphosted.com", "X-Spam_score_int": "-19", "X-Spam_score": "-2.0", "X-Spam_bar": "--", "X-Spam_report": "(-2.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001,\n RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001,\n RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001,\n 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": "qemu development <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "For DIVIDE TO INTEGER it will be helpful to pass final-quotient\nrounding mode around explicitly rather than setting it in fpu_status\nimplicitly. To facilitate this, extract a function for converting the\nmask to the rounding mode.\n\nReviewed-by: Richard Henderson <richard.henderson@linaro.org>\nReviewed-by: Thomas Huth <thuth@redhat.com>\nSigned-off-by: Ilya Leoshkevich <iii@linux.ibm.com>\n---\n target/s390x/tcg/fpu_helper.c | 62 +++++++++++++++++------------------\n 1 file changed, 31 insertions(+), 31 deletions(-)", "diff": "diff --git a/target/s390x/tcg/fpu_helper.c b/target/s390x/tcg/fpu_helper.c\nindex 1ba43715ac1..7a3ff501a46 100644\n--- a/target/s390x/tcg/fpu_helper.c\n+++ b/target/s390x/tcg/fpu_helper.c\n@@ -56,6 +56,35 @@ uint8_t s390_softfloat_exc_to_ieee(unsigned int exc)\n return s390_exc;\n }\n \n+static int s390_get_bfp_rounding_mode(CPUS390XState *env, int m3)\n+{\n+ switch (m3) {\n+ case 0:\n+ /* current mode */\n+ return env->fpu_status.float_rounding_mode;\n+ case 1:\n+ /* round to nearest with ties away from 0 */\n+ return float_round_ties_away;\n+ case 3:\n+ /* round to prepare for shorter precision */\n+ return float_round_to_odd;\n+ case 4:\n+ /* round to nearest with ties to even */\n+ return float_round_nearest_even;\n+ case 5:\n+ /* round to zero */\n+ return float_round_to_zero;\n+ case 6:\n+ /* round to +inf */\n+ return float_round_up;\n+ case 7:\n+ /* round to -inf */\n+ return float_round_down;\n+ default:\n+ g_assert_not_reached();\n+ }\n+}\n+\n /* Should be called after any operation that may raise IEEE exceptions. */\n static void handle_exceptions(CPUS390XState *env, bool XxC, uintptr_t retaddr)\n {\n@@ -416,37 +445,8 @@ int s390_swap_bfp_rounding_mode(CPUS390XState *env, int m3)\n {\n int ret = env->fpu_status.float_rounding_mode;\n \n- switch (m3) {\n- case 0:\n- /* current mode */\n- break;\n- case 1:\n- /* round to nearest with ties away from 0 */\n- set_float_rounding_mode(float_round_ties_away, &env->fpu_status);\n- break;\n- case 3:\n- /* round to prepare for shorter precision */\n- set_float_rounding_mode(float_round_to_odd, &env->fpu_status);\n- break;\n- case 4:\n- /* round to nearest with ties to even */\n- set_float_rounding_mode(float_round_nearest_even, &env->fpu_status);\n- break;\n- case 5:\n- /* round to zero */\n- set_float_rounding_mode(float_round_to_zero, &env->fpu_status);\n- break;\n- case 6:\n- /* round to +inf */\n- set_float_rounding_mode(float_round_up, &env->fpu_status);\n- break;\n- case 7:\n- /* round to -inf */\n- set_float_rounding_mode(float_round_down, &env->fpu_status);\n- break;\n- default:\n- g_assert_not_reached();\n- }\n+ set_float_rounding_mode(s390_get_bfp_rounding_mode(env, m3),\n+ &env->fpu_status);\n return ret;\n }\n \n", "prefixes": [ "v5", "2/5" ] }