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[209.51.188.17]) by mx.google.com with ESMTPS id o11si18638801ybk.791.2022.01.03.10.54.38 for (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Mon, 03 Jan 2022 10:54:38 -0800 (PST) Received-SPF: pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; Authentication-Results: mx.google.com; dkim=fail header.i=@gmail.com header.s=20210112 header.b=HwygmsqK; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=fail (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: from localhost ([::1]:36400 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1n4STe-0007rN-D7 for patch@linaro.org; Mon, 03 Jan 2022 13:54:38 -0500 Received: from eggs.gnu.org ([209.51.188.92]:36530) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n4SSu-0007KG-SF; Mon, 03 Jan 2022 13:53:53 -0500 Received: from [2607:f8b0:4864:20::82a] (port=38909 helo=mail-qt1-x82a.google.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1n4SSt-0006Gw-6U; Mon, 03 Jan 2022 13:53:52 -0500 Received: by mail-qt1-x82a.google.com with SMTP id 8so31334100qtx.5; Mon, 03 Jan 2022 10:53:50 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=dahHqnMxceDbQ74I84xFv3w02NM0JbWTAXBZEs59W+g=; b=HwygmsqKagS4/1u/wmwDtqnIopi548KVsdvuWfE28cvHuaYGRqk+4a71OKuznCqvED kJ9uYLE00WQoa4gmdmyk2pP7iaiaAqg1DS2/sJlHzspAM2LyLhX17CsuJzVS6Z/a+1+s 4lOS/YRivRuWLS9o+vtH6+sC34aanZtuFC+eRpEOlFoMQHKAqMvZFm6HhIgPJVv5QCiJ Rhi4gt3yMu2Y7tgI8s3Qy5PX5DZEAT1FeDrik4+V8pWWYZCo4Wrsop74FKfv7otXAKBV syku2I7adfL+jIyaDv6cUERXFN3/aqHX7wM2tuFOAq1NxoM+z7DxvBweG2DmQPam5gP0 4qHA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=dahHqnMxceDbQ74I84xFv3w02NM0JbWTAXBZEs59W+g=; b=mNhOwmeKtgPZcK1XgVNA7EjrGBECdDNn4IhW3ZSvMuofwRhFTJz41CcUvE7q7Otirm pA5xy+B4mX1Rv3g7G+wOpnmVKdJMVVlVZOem0wIYktN5OMnuNfXPztKTqhvcd+BePvyc I/4eNMVaxcQfoTMvhmHrc8Y4158Vmje6J374JXfevdVpRDv/sJt9QW525+k2ZFCBuK0O fguaLQNWHa/KrDzSf8fEZZ91pNh4tTmoOxkb2dpC+EwTn1XSqCZTlpyzTOiMyTuiinWO DzRlDp3DHP5T8TSALwEa7ZiDiO3TBearQo5jeWvn5oxH0bQyZbt+LmFUkfqJYVWNHwyp l8cA== X-Gm-Message-State: AOAM5338e89ycK3a5/7XvtpXFdPgeH0NgnKCGvr4CPT6cXNx+NfTeHVN jeKSBPxSVw6gBpQp9rk7cjUnmuv9RoA= X-Received: by 2002:a05:622a:1114:: with SMTP id e20mr41750945qty.279.1641236030059; Mon, 03 Jan 2022 10:53:50 -0800 (PST) Received: from rekt.ibmuc.com ([2804:431:c7c7:f4d8:aa07:335f:99e0:a6e7]) by smtp.gmail.com with ESMTPSA id w9sm29002867qko.71.2022.01.03.10.53.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 03 Jan 2022 10:53:49 -0800 (PST) From: Daniel Henrique Barboza To: qemu-devel@nongnu.org Subject: [PATCH v2 3/5] target/ppc: Use env->pnc_cyc_cnt Date: Mon, 3 Jan 2022 15:53:30 -0300 Message-Id: <20220103185332.117878-4-danielhb413@gmail.com> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20220103185332.117878-1-danielhb413@gmail.com> References: <20220103185332.117878-1-danielhb413@gmail.com> MIME-Version: 1.0 X-Host-Lookup-Failed: Reverse DNS lookup failed for 2607:f8b0:4864:20::82a (failed) Received-SPF: pass client-ip=2607:f8b0:4864:20::82a; envelope-from=danielhb413@gmail.com; helo=mail-qt1-x82a.google.com X-Spam_score_int: 8 X-Spam_score: 0.8 X-Spam_bar: / X-Spam_report: (0.8 / 5.0 requ) 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, RDNS_NONE=0.793, 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: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: richard.henderson@linaro.org, qemu-ppc@nongnu.org, clg@kaod.org, david@gibson.dropbear.id.au Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: "Qemu-devel" From: Richard Henderson Use the cached pmc_cyc_cnt value in pmu_update_cycles and pmc_update_overflow_timer. This leaves pmc_get_event and pmc_is_inactive unused, so remove them. Signed-off-by: Richard Henderson --- target/ppc/power8-pmu.c | 107 ++++------------------------------------ 1 file changed, 9 insertions(+), 98 deletions(-) diff --git a/target/ppc/power8-pmu.c b/target/ppc/power8-pmu.c index 8f01934c15..7fc7d91109 100644 --- a/target/ppc/power8-pmu.c +++ b/target/ppc/power8-pmu.c @@ -24,19 +24,6 @@ #define PMC_COUNTER_NEGATIVE_VAL 0x80000000UL -static bool pmc_is_inactive(CPUPPCState *env, int sprn) -{ - if (env->spr[SPR_POWER_MMCR0] & MMCR0_FC) { - return true; - } - - if (sprn < SPR_POWER_PMC5) { - return env->spr[SPR_POWER_MMCR0] & MMCR0_FC14; - } - - return env->spr[SPR_POWER_MMCR0] & MMCR0_FC56; -} - static bool pmc_has_overflow_enabled(CPUPPCState *env, int sprn) { if (sprn == SPR_POWER_PMC1) { @@ -46,80 +33,6 @@ static bool pmc_has_overflow_enabled(CPUPPCState *env, int sprn) return env->spr[SPR_POWER_MMCR0] & MMCR0_PMCjCE; } -/* - * For PMCs 1-4, IBM POWER chips has support for an implementation - * dependent event, 0x1E, that enables cycle counting. The Linux kernel - * makes extensive use of 0x1E, so let's also support it. - * - * Likewise, event 0x2 is an implementation-dependent event that IBM - * POWER chips implement (at least since POWER8) that is equivalent to - * PM_INST_CMPL. Let's support this event on PMCs 1-4 as well. - */ -static PMUEventType pmc_get_event(CPUPPCState *env, int sprn) -{ - uint8_t mmcr1_evt_extr[] = { MMCR1_PMC1EVT_EXTR, MMCR1_PMC2EVT_EXTR, - MMCR1_PMC3EVT_EXTR, MMCR1_PMC4EVT_EXTR }; - PMUEventType evt_type = PMU_EVENT_INVALID; - uint8_t pmcsel; - int i; - - if (pmc_is_inactive(env, sprn)) { - return PMU_EVENT_INACTIVE; - } - - if (sprn == SPR_POWER_PMC5) { - return PMU_EVENT_INSTRUCTIONS; - } - - if (sprn == SPR_POWER_PMC6) { - return PMU_EVENT_CYCLES; - } - - i = sprn - SPR_POWER_PMC1; - pmcsel = extract64(env->spr[SPR_POWER_MMCR1], mmcr1_evt_extr[i], - MMCR1_EVT_SIZE); - - switch (pmcsel) { - case 0x2: - evt_type = PMU_EVENT_INSTRUCTIONS; - break; - case 0x1E: - evt_type = PMU_EVENT_CYCLES; - break; - case 0xF0: - /* - * PMC1SEL = 0xF0 is the architected PowerISA v3.1 - * event that counts cycles using PMC1. - */ - if (sprn == SPR_POWER_PMC1) { - evt_type = PMU_EVENT_CYCLES; - } - break; - case 0xFA: - /* - * PMC4SEL = 0xFA is the "instructions completed - * with run latch set" event. - */ - if (sprn == SPR_POWER_PMC4) { - evt_type = PMU_EVENT_INSN_RUN_LATCH; - } - break; - case 0xFE: - /* - * PMC1SEL = 0xFE is the architected PowerISA v3.1 - * event to sample instructions using PMC1. - */ - if (sprn == SPR_POWER_PMC1) { - evt_type = PMU_EVENT_INSTRUCTIONS; - } - break; - default: - break; - } - - return evt_type; -} - void pmu_update_summaries(CPUPPCState *env) { target_ulong mmcr0 = env->spr[SPR_POWER_MMCR0]; @@ -233,18 +146,16 @@ static void pmu_update_cycles(CPUPPCState *env) { uint64_t now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); uint64_t time_delta = now - env->pmu_base_time; - int sprn; + int sprn, cyc_cnt = env->pmc_cyc_cnt; for (sprn = SPR_POWER_PMC1; sprn <= SPR_POWER_PMC6; sprn++) { - if (pmc_get_event(env, sprn) != PMU_EVENT_CYCLES) { - continue; + if (cyc_cnt & (1 << (sprn - SPR_POWER_PMC1 + 1))) { + /* + * The pseries and powernv clock runs at 1Ghz, meaning + * that 1 nanosec equals 1 cycle. + */ + env->spr[sprn] += time_delta; } - - /* - * The pseries and powernv clock runs at 1Ghz, meaning - * that 1 nanosec equals 1 cycle. - */ - env->spr[sprn] += time_delta; } /* Update base_time for future calculations */ @@ -273,7 +184,7 @@ static void pmc_update_overflow_timer(CPUPPCState *env, int sprn) return; } - if (pmc_get_event(env, sprn) != PMU_EVENT_CYCLES || + if (!(env->pmc_cyc_cnt & (1 << (sprn - SPR_POWER_PMC1 + 1))) || !pmc_has_overflow_enabled(env, sprn)) { /* Overflow timer is not needed for this counter */ timer_del(pmc_overflow_timer); @@ -281,7 +192,7 @@ static void pmc_update_overflow_timer(CPUPPCState *env, int sprn) } if (env->spr[sprn] >= PMC_COUNTER_NEGATIVE_VAL) { - timeout = 0; + timeout = 0; } else { timeout = PMC_COUNTER_NEGATIVE_VAL - env->spr[sprn]; }