From nobody Wed Apr 1 22:11:00 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=reject dis=none) header.from=oss.qualcomm.com ARC-Seal: i=1; a=rsa-sha256; t=1775057601; cv=none; d=zohomail.com; s=zohoarc; b=ZharL8RTE95kuqCeJ2P7VMfQwG+v41A+PTbtmpA+tcc0HWoOKr/RG9PVGcF6h0GJXTZTG0EZDCQKkMhyiKNMcOla/zP9HJlEjDX26jdEHkQu3ZbMZrj06d3/b0umVwJZTt5XMKsjQNc4jmke/yGfe/XayVoabcmCh7F1dDspQEA= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1775057601; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=MzvUFKvc+sUpWvc2016FnOxj5PhtBZkyxIiMWx3S09s=; b=oIKza+5pORiwU9anklSGI439nc/ThuhsAftwdY7MJI3HVmZBSmjQ+do7TpO+44rAKBFP2S9Y9+4+NQKCcNNx5SMg43tRSdao4988mbwZMpz30Fn/tciIcC9HAdqxFWJLSZGo8WiMVTPXx4K5l83REZLAmpxj3m1cUh6xD9nRsPw= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=reject dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1775057601030536.7097800572568; Wed, 1 Apr 2026 08:33:21 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1w7xV2-0001Ze-ME; Wed, 01 Apr 2026 11:28:56 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1w7xUk-00013l-4s for qemu-devel@nongnu.org; Wed, 01 Apr 2026 11:28:38 -0400 Received: from mx0b-0031df01.pphosted.com ([205.220.180.131]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1w7xUi-000887-4K for qemu-devel@nongnu.org; Wed, 01 Apr 2026 11:28:37 -0400 Received: from pps.filterd (m0279869.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 631FRJ8S1579382 for ; Wed, 1 Apr 2026 15:28:25 GMT Received: from mail-dy1-f197.google.com (mail-dy1-f197.google.com [74.125.82.197]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4d8mr2vbnt-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Wed, 01 Apr 2026 15:28:23 +0000 (GMT) Received: by mail-dy1-f197.google.com with SMTP id 5a478bee46e88-2c0ba59a830so8888147eec.0 for ; Wed, 01 Apr 2026 08:28:19 -0700 (PDT) Received: from hu-bcain-lv.qualcomm.com (Global_NAT1.qualcomm.com. [129.46.96.20]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-2ca78df3b84sm38491eec.5.2026.04.01.08.28.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 01 Apr 2026 08:28:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qualcomm.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= MzvUFKvc+sUpWvc2016FnOxj5PhtBZkyxIiMWx3S09s=; b=XcDCgc3+rg05cySV LoHByd3vTeCTQaUlSdEZFjdmnGZ/Mf9sk7gNwizKz8WOVTLgXmQmE1oqBR2exC1Q 4+EUg85XdqsYvn3ffJT/k1BEbGwISJu1Am5VV5fUOPE/jnn/A/RudlnBUDnyN9Ya siBGHfAu6SjQlncbdp0s6Uiz9ZZhLz9inUjJsV0Nx2zpuY+UWrPLV+TOCrMUqD+0 924hRyPTyRGYMVRxcRQKNx+73YmUaAxYvMbkDt+kWOrsEcBO9D7IqHcdOnMn2W2Z sXBHOKG9tG8FRA/jZkqinKotfefaSuLHfVFgYyBG/cl075dq/Wb1GJONO+EPmxBc Sk43Sw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1775057295; x=1775662095; darn=nongnu.org; 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=MzvUFKvc+sUpWvc2016FnOxj5PhtBZkyxIiMWx3S09s=; b=RR1piDSOLmfql3FG+ypq0qUQtii/vHQywaUDUm/QLlBTtBhbIL/NFIiwVpOnihnPea b6NfI0rL0laW+YOb8SuYTXMtBdm3EVbGvCJzFHZnuRKRVT8b44Q0Z87dQGE0OiZtkGkq V0c9FW2/PYe9E+MisgKvAnUuQPf42Ne1PpHT3j5Ia8PBP8C1a7fdz84c8J32J58w5PrW FxMFV8tlQXPuoiEKSJrx/P7/E3UyPs4YA3/vnKjYHC8a34rAdQxP3AVVSaa7AcDVzR0p itp36KOPxO5KpBpOrPir27TEcQJwidt9DvSHNQ74AamA9JsNHUqhT5flFP4JGhp1B2R4 RJOg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1775057295; x=1775662095; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=MzvUFKvc+sUpWvc2016FnOxj5PhtBZkyxIiMWx3S09s=; b=Y/1VBwDB/ogSQKjbLxqeZGRONJr4bidMy/FuVo6gmqA/cSjPPF4wH2HNKr/Bueg5XG iACffEIHVdt6QIUZ+5QCX5Gzk0hP1DHL5Dvc7ZBOcLSx8BpIU5DtstY30QIhq0EUxy1E LhtiEzR/AnGDo8+pm9nTUbSwcHoRH96BSFRvUpKQhEvIVspl/hx+ekBqCXGijlnesXmq G/klMcd4LMiE3BX8YODo+YarwLyZ8IeTw62fpwMzSuJMHe/GXzIawFJLUia9ygC9eQne AZC2DSr327TsfgD5AtwC4A4bGXPJyK7lL8VxhOgcM3XzyoOUXBQJba8cbKYNhkfCSCkj bcWg== X-Gm-Message-State: AOJu0YwksemoQ4oe0gVsOT9BXuz7MlDDvVMQYZbgFd00BOKUxdupXYmJ AzLXxmrdd1NBKTkBJD7e07EnXyKF7bpiYI+ThK//ruNbwPAFP1rNclog4p7/yGMw16oS5sVGxka MnckuehX3c6lkRSIRCNDUeQ+mcs6N5uQwbRJhWyUbuxX09g1OAoUCTEH/x6Gmpx3jEg== X-Gm-Gg: ATEYQzzAoq2P74Yu4KES4O3ilo/NRWRcL3AjEUmVRyBiR1/drn8fvIR/rib3RDQvcKj Hkeu1sYz6lpFcC3UXgbAoppSZ135KR1JphwD1ueKY6gOEeXpKbHtIgx72KlDkzBFVqn8K/5yhB6 nN90mt1ErgylEnka1qnejQm9O52/JEUKtOZZb505CYaM1xvwYKWDrJvVuk8s3OOE2FvVOElAyXW xt3vPv2U0PF2GynB1qX9cZx0U6efLX0kKxuoOteJ5XB/SLj+qh+kTcknfS4y+UtEY5ujyRRDcV9 87irQjGIVGxgr36whe+9qruaXq1E6c9zAlNeWsc0b4i0awavIu6RApXqPg2nBaoiHKPyoLXqL+9 q4TmD+SRIO9SNh6cXDkis7wFj3OqgqQfFH+A0KGT475wDOb6XRzW23+fxw3/qEumyvnM94g== X-Received: by 2002:a05:7301:3d06:b0:2c4:c8de:cdcc with SMTP id 5a478bee46e88-2c9326aa24bmr2130485eec.22.1775057294688; Wed, 01 Apr 2026 08:28:14 -0700 (PDT) X-Received: by 2002:a05:7301:3d06:b0:2c4:c8de:cdcc with SMTP id 5a478bee46e88-2c9326aa24bmr2130459eec.22.1775057294181; Wed, 01 Apr 2026 08:28:14 -0700 (PDT) From: Brian Cain To: qemu-devel@nongnu.org Cc: brian.cain@oss.qualcomm.com, philmd@linaro.org, ltaylorsimpson@gmail.com, matheus.bernardino@oss.qualcomm.com, marco.liebel@oss.qualcomm.com, quic_mburton@quicinc.com, sid.manning@oss.qualcomm.com, ale@rev.ng, anjo@rev.ng Subject: [PATCH v6 32/37] target/hexagon: Add pcycle setting functionality Date: Wed, 1 Apr 2026 08:26:52 -0700 Message-Id: <20260401152657.314902-33-brian.cain@oss.qualcomm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260401152657.314902-1-brian.cain@oss.qualcomm.com> References: <20260401152657.314902-1-brian.cain@oss.qualcomm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Authority-Analysis: v=2.4 cv=B+O0EetM c=1 sm=1 tr=0 ts=69cd3997 cx=c_pps a=Uww141gWH0fZj/3QKPojxA==:117 a=ouPCqIW2jiPt+lZRy3xVPw==:17 a=IkcTkHD0fZMA:10 a=A5OVakUREuEA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_glEPmIy2e8OvE2BGh3C:22 a=pGLkceISAAAA:8 a=EUspDBNiAAAA:8 a=OF6xqQKflNrgTLtdKXcA:9 a=QEXdDO2ut3YA:10 a=PxkB5W3o20Ba91AHUih5:22 X-Proofpoint-ORIG-GUID: olFzK7aPobLLXtV1ybq2TuWIrjmBQPhF X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNDAxMDE0NCBTYWx0ZWRfX8yH9nIfxd+wJ aBzHyjhty1SPtD1Xd1XRduMFnXTTCMUO+1F+dechC3wIWq6Df1TQTMHo1i39K0sS+8MWE8z01ZX s3fPWWP8GZ5FjRnTAufDnX6rhH4Fj15/aDwaOYvmqQtC5SfAJSiiskYcS8qb6BSPc2OQtizBcwU unF5v4RqrN/Zng/PWpmSNTTsP3ZXy5gs4g46W20xPV6AdBrvw1/7WePK1WraeKkwEZ7hO+JljpK FajAWSnZBUtEJGHv3VkSSMfzKjuV5sCA4iFXOocLsPbLQQpk3fJ8/r1PXKHr02VI+AkBzUhwFbX on4wGHETbu4JMybC9XA7NI1JtqJrfpFv9w22T1mZFKid17KsSLXFaOhuVBso2NoL9PzPKgxFIa6 xTYpPhjYIoR/9r1O7BnCY8l+4PbY4Dj9A5mi1KLw0wT6KeIfuUF/JW9r+TV/fkmCRurHJX3pvbJ c2hONRbjun2N+Lv3tNA== X-Proofpoint-GUID: olFzK7aPobLLXtV1ybq2TuWIrjmBQPhF X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-04-01_04,2026-04-01_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 impostorscore=0 adultscore=0 malwarescore=0 lowpriorityscore=0 spamscore=0 clxscore=1015 suspectscore=0 phishscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2604010144 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=205.220.180.131; envelope-from=brian.cain@oss.qualcomm.com; helo=mx0b-0031df01.pphosted.com X-Spam_score_int: -7 X-Spam_score: -0.8 X-Spam_bar: / X-Spam_report: (-0.8 / 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_LOW=-0.7, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=1, RCVD_IN_VALIDITY_RPBL_BLOCKED=1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no 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 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 @qualcomm.com) X-ZM-MESSAGEID: 1775057602323158500 Replace pcycle set stubs with real implementations that distribute cycle count changes across all active threads. Reviewed-by: Taylor Simpson Signed-off-by: Brian Cain --- target/hexagon/cpu_helper.c | 43 ++++++++++++++++++++++++++++++++++--- 1 file changed, 40 insertions(+), 3 deletions(-) diff --git a/target/hexagon/cpu_helper.c b/target/hexagon/cpu_helper.c index bb991a671e8..64c5746c6d9 100644 --- a/target/hexagon/cpu_helper.c +++ b/target/hexagon/cpu_helper.c @@ -56,17 +56,54 @@ uint32_t hexagon_get_sys_pcycle_count_low(CPUHexagonSta= te *env) =20 void hexagon_set_sys_pcycle_count_high(CPUHexagonState *env, uint32_t val) { - g_assert_not_reached(); + uint64_t old; + + g_assert(bql_locked()); + old =3D hexagon_get_sys_pcycle_count(env); + old =3D deposit64(old, 32, 32, val); + hexagon_set_sys_pcycle_count(env, old); } =20 void hexagon_set_sys_pcycle_count_low(CPUHexagonState *env, uint32_t val) { - g_assert_not_reached(); + uint64_t old; + + g_assert(bql_locked()); + old =3D hexagon_get_sys_pcycle_count(env); + old =3D deposit64(old, 0, 32, val); + hexagon_set_sys_pcycle_count(env, old); } =20 void hexagon_set_sys_pcycle_count(CPUHexagonState *env, uint64_t val) { - g_assert_not_reached(); + CPUState *cs; + uint64_t total; + int num_threads; + int64_t delta, per_thread, remainder; + + g_assert(bql_locked()); + total =3D hexagon_get_sys_pcycle_count(env); + + /* Count active threads */ + num_threads =3D 0; + CPU_FOREACH(cs) { + num_threads++; + } + g_assert(num_threads > 0); + + /* + * Distribute the delta evenly across all threads. + * Any remainder goes to the calling thread. + */ + delta =3D (int64_t)(val - total); + per_thread =3D delta / num_threads; + remainder =3D delta - per_thread * num_threads; + + CPU_FOREACH(cs) { + CPUHexagonState *thread_env =3D cpu_env(cs); + thread_env->t_cycle_count +=3D per_thread; + } + env->t_cycle_count +=3D remainder; } =20 static void hexagon_resume_thread(CPUHexagonState *env) --=20 2.34.1