From nobody Tue Feb 10 00:58:47 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; 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=fail(p=none dis=none) header.from=gmail.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1628515571887225.4708524686838; Mon, 9 Aug 2021 06:26:11 -0700 (PDT) Received: from localhost ([::1]:56630 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mD5IA-00057o-QC for importer@patchew.org; Mon, 09 Aug 2021 09:26:10 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:46962) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mD54C-0003Hq-KR; Mon, 09 Aug 2021 09:11:44 -0400 Received: from mail-qk1-x72b.google.com ([2607:f8b0:4864:20::72b]:43646) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1mD54B-0001dF-4I; Mon, 09 Aug 2021 09:11:44 -0400 Received: by mail-qk1-x72b.google.com with SMTP id f12so17071424qkh.10; Mon, 09 Aug 2021 06:11:42 -0700 (PDT) Received: from rekt.ibmuc.com ([191.19.172.190]) by smtp.gmail.com with ESMTPSA id f3sm6757435qti.65.2021.08.09.06.11.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 Aug 2021 06:11:41 -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 :mime-version:content-transfer-encoding; bh=JbWRJ2VzCyHQZuKAHuSZYu7+bSZoPl1YGCIQUZf3v1A=; b=Cv1Hh7S8/iV/hH+L8CA6A9aTAwgCSLfN26oSAPU/fp01k5wA1nPrh7eBYVMeL01cTA 19AAq9X+MHsqYtuYzMTwHxwyx3r2LWKKyZTulg/bAc0nV4TnNk9ky/WOGC9i/ieIq+LW LEHmY9c/mY+DNf7vA4C0XU24q1tSNepxExFViM6/VPUJ2LVjDtPtX4tcjxSn2190KTDz 1/BEwH8gDGSrf1JLpeev6P7eOUph6WajDNDXikGkVdxk36vGJKaX1EZN2W6yzxkKqaFB 840b+PoVBqNpfxl0oxFkazJwDCSazEIjWhUwnnp0SDbaK1aPEd/xJB+rO/7UYsVnggto dbaw== 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:mime-version:content-transfer-encoding; bh=JbWRJ2VzCyHQZuKAHuSZYu7+bSZoPl1YGCIQUZf3v1A=; b=cagWN51chlPoFoir59A9XMJZtWa9fVL7grDxoWIYvOgxVqFSxgZQ9Y7WMgZM/vhOvL uGgmkHAMQdQT/uZ9OWXd5NkK1cDzKlgEHj6dn15CFwEId1YbfhLABk3pTw+ezSpu26aj VXf6YenKldAfi5omh0hAQg1d7lomLpH4F74WbB87ZBcPbY0IKcHCHGtJLfmLoEUq4oyj Rc1+zm6CD6tcqJ8goFMoX80YcGK5o4TZ+BxYYlEtVxsbUIUejPuJfM6/eh1578f0NpcD n1rZ2qamtnFIiC2hm1Vgv1axqheQVEJncUUu6MWvUn8r9wCuFJG5doMC46uRZrD5lfl0 Lwgw== X-Gm-Message-State: AOAM532MU8p363UWdiu8/u4R7w7Sr+R1DdXmQPnIHtWbrtmgFC4zjpHQ rqBxphM9oUiqlTJTrIxZU1506VGu0AdSUw== X-Google-Smtp-Source: ABdhPJxX4YYdux3AoXCGhqwyohdDHyMI69Z4J1EAOyBwvPidYOyHDfZDPvR92TZWHPcy8r6Be/xefQ== X-Received: by 2002:a37:8a44:: with SMTP id m65mr22774818qkd.72.1628514701773; Mon, 09 Aug 2021 06:11:41 -0700 (PDT) From: Daniel Henrique Barboza To: qemu-devel@nongnu.org Subject: [PATCH 14/19] target/ppc/pmu_book3s_helper.c: add generic timeout helpers Date: Mon, 9 Aug 2021 10:10:52 -0300 Message-Id: <20210809131057.1694145-15-danielhb413@gmail.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210809131057.1694145-1-danielhb413@gmail.com> References: <20210809131057.1694145-1-danielhb413@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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=2607:f8b0:4864:20::72b; envelope-from=danielhb413@gmail.com; helo=mail-qk1-x72b.google.com X-Spam_score_int: -17 X-Spam_score: -1.8 X-Spam_bar: - X-Spam_report: (-1.8 / 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, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, 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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: gustavo.romero@linaro.org, Daniel Henrique Barboza , groug@kaod.org, qemu-ppc@nongnu.org, clg@kaod.org, david@gibson.dropbear.id.au Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1628515573653100003 Content-Type: text/plain; charset="utf-8" Before adding counter negative condition support for the other 5 counters, create generic helpers that retrieves the elapsed timeout to counter negative based on the event being sampled. Signed-off-by: Daniel Henrique Barboza --- target/ppc/pmu_book3s_helper.c | 41 +++++++++++++++++++++++++++++----- 1 file changed, 35 insertions(+), 6 deletions(-) diff --git a/target/ppc/pmu_book3s_helper.c b/target/ppc/pmu_book3s_helper.c index e7af273cb6..7126e9b3d5 100644 --- a/target/ppc/pmu_book3s_helper.c +++ b/target/ppc/pmu_book3s_helper.c @@ -111,23 +111,52 @@ static void update_PMCs(CPUPPCState *env, uint64_t ic= ount_delta) update_PMC_PM_CYC(env, SPR_POWER_PMC6, icount_delta); } =20 +static int64_t get_INST_CMPL_timeout(CPUPPCState *env, int sprn) +{ + int64_t remaining_insns; + + if (env->spr[sprn] =3D=3D 0) { + return icount_to_ns(COUNTER_NEGATIVE_VAL); + } + + if (env->spr[sprn] >=3D COUNTER_NEGATIVE_VAL) { + return 0; + } + + remaining_insns =3D COUNTER_NEGATIVE_VAL - env->spr[sprn]; + return icount_to_ns(remaining_insns); +} + +static int64_t get_CYC_timeout(CPUPPCState *env, int sprn) +{ + int64_t remaining_cyc; + + if (env->spr[sprn] =3D=3D 0) { + return icount_to_ns(COUNTER_NEGATIVE_VAL); + } + + if (env->spr[sprn] >=3D COUNTER_NEGATIVE_VAL) { + return 0; + } + + remaining_cyc =3D COUNTER_NEGATIVE_VAL - env->spr[sprn]; + return muldiv64(remaining_cyc, NANOSECONDS_PER_SECOND, PPC_CPU_FREQ); +} + static void set_PMU_excp_timer(CPUPPCState *env) { - uint64_t timeout, now, remaining_val; + uint64_t timeout, now; =20 if (!(env->spr[SPR_POWER_MMCR0] & MMCR0_PMC1CE)) { return; } =20 - remaining_val =3D COUNTER_NEGATIVE_VAL - env->spr[SPR_POWER_PMC1]; - switch (get_PMC_event(env, SPR_POWER_PMC1)) { case 0x2: - timeout =3D icount_to_ns(remaining_val); + timeout =3D get_INST_CMPL_timeout(env, SPR_POWER_PMC1); break; case 0x1e: - timeout =3D muldiv64(remaining_val, NANOSECONDS_PER_SECOND, - PPC_CPU_FREQ); + timeout =3D get_CYC_timeout(env, SPR_POWER_PMC1); break; default: return; --=20 2.31.1