From patchwork Mon Feb 4 16:53:34 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Murray X-Patchwork-Id: 10796103 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 06F7113B5 for ; Mon, 4 Feb 2019 16:54:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E50542AFAF for ; Mon, 4 Feb 2019 16:54:28 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D3FA92BD53; Mon, 4 Feb 2019 16:54:28 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 5AEE12BD21 for ; Mon, 4 Feb 2019 16:54:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=UzlFe9tBq7ZmSFgXWjgJJradkC+yThHn+iN8zaVo+XQ=; b=dLpKZqCUX7jIvhURXN8tif2TqB PARpurSC6s7qtS4FLSBUgPD0kyN1dSu0+Yk2EXxFIh7w6gQQDc0ywJS+1GjBWr1L3B1cT/ij1cDlu IR3/kmn5nGvnAYGEpqDROvmc/DB8v6Pzam8Xmjpfa2+NNXJySkNbuHuJF9z7gvcwJJdGPasiunoXB Y9JBMDxgf772pTL+lkM+tVFMiShdp0PPwO07ejgIRY+09VZqyEijuUJLSkL07d4CCoWRcMTditZ61 Ga3IDlLGCcPEFf1O1A7rkr4aMbjCifRYu2HlN2UWfe4xJGxy3buoursCiCyxYpqvHRfphI7mtxaCV 9lM+vACQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gqhVo-00046x-TL; Mon, 04 Feb 2019 16:54:24 +0000 Received: from foss.arm.com ([217.140.101.70]) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gqhVE-0003XY-CC for linux-arm-kernel@lists.infradead.org; Mon, 04 Feb 2019 16:53:50 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 6350C15AD; Mon, 4 Feb 2019 08:53:46 -0800 (PST) Received: from e119886-lin.cambridge.arm.com (unknown [10.37.6.16]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 02CDB3F589; Mon, 4 Feb 2019 08:53:44 -0800 (PST) From: Andrew Murray To: Christoffer Dall , Marc Zyngier Subject: [PATCH v2 1/5] KVM: arm/arm64: rename kvm_pmu_{enable/disable}_counter functions Date: Mon, 4 Feb 2019 16:53:34 +0000 Message-Id: <1549299218-44714-2-git-send-email-andrew.murray@arm.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1549299218-44714-1-git-send-email-andrew.murray@arm.com> References: <1549299218-44714-1-git-send-email-andrew.murray@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190204_085348_427230_30DBF4A4 X-CRM114-Status: GOOD ( 12.52 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Julien Thierry , kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org, suzuki.poulose@arm.com MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP The kvm_pmu_{enable/disable}_counter functions can enabled/disable multiple counters at once as they operate on a bitmask. Let's make this clearer by renaming the function. Signed-off-by: Andrew Murray Reviewed-by: Julien Thierry Reviewed-by: Suzuki K Poulose --- arch/arm64/kvm/sys_regs.c | 4 ++-- include/kvm/arm_pmu.h | 8 ++++---- virt/kvm/arm/pmu.c | 12 ++++++------ 3 files changed, 12 insertions(+), 12 deletions(-) diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index e3e3722..4a6fbac 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -857,11 +857,11 @@ static bool access_pmcnten(struct kvm_vcpu *vcpu, struct sys_reg_params *p, if (r->Op2 & 0x1) { /* accessing PMCNTENSET_EL0 */ __vcpu_sys_reg(vcpu, PMCNTENSET_EL0) |= val; - kvm_pmu_enable_counter(vcpu, val); + kvm_pmu_enable_counter_mask(vcpu, val); } else { /* accessing PMCNTENCLR_EL0 */ __vcpu_sys_reg(vcpu, PMCNTENSET_EL0) &= ~val; - kvm_pmu_disable_counter(vcpu, val); + kvm_pmu_disable_counter_mask(vcpu, val); } } else { p->regval = __vcpu_sys_reg(vcpu, PMCNTENSET_EL0) & mask; diff --git a/include/kvm/arm_pmu.h b/include/kvm/arm_pmu.h index f87fe20..b73f31b 100644 --- a/include/kvm/arm_pmu.h +++ b/include/kvm/arm_pmu.h @@ -46,8 +46,8 @@ void kvm_pmu_set_counter_value(struct kvm_vcpu *vcpu, u64 select_idx, u64 val); u64 kvm_pmu_valid_counter_mask(struct kvm_vcpu *vcpu); void kvm_pmu_vcpu_reset(struct kvm_vcpu *vcpu); void kvm_pmu_vcpu_destroy(struct kvm_vcpu *vcpu); -void kvm_pmu_disable_counter(struct kvm_vcpu *vcpu, u64 val); -void kvm_pmu_enable_counter(struct kvm_vcpu *vcpu, u64 val); +void kvm_pmu_disable_counter_mask(struct kvm_vcpu *vcpu, u64 val); +void kvm_pmu_enable_counter_mask(struct kvm_vcpu *vcpu, u64 val); void kvm_pmu_flush_hwstate(struct kvm_vcpu *vcpu); void kvm_pmu_sync_hwstate(struct kvm_vcpu *vcpu); bool kvm_pmu_should_notify_user(struct kvm_vcpu *vcpu); @@ -83,8 +83,8 @@ static inline u64 kvm_pmu_valid_counter_mask(struct kvm_vcpu *vcpu) } static inline void kvm_pmu_vcpu_reset(struct kvm_vcpu *vcpu) {} static inline void kvm_pmu_vcpu_destroy(struct kvm_vcpu *vcpu) {} -static inline void kvm_pmu_disable_counter(struct kvm_vcpu *vcpu, u64 val) {} -static inline void kvm_pmu_enable_counter(struct kvm_vcpu *vcpu, u64 val) {} +static inline void kvm_pmu_disable_counter_mask(struct kvm_vcpu *vcpu, u64 val) {} +static inline void kvm_pmu_enable_counter_mask(struct kvm_vcpu *vcpu, u64 val) {} static inline void kvm_pmu_flush_hwstate(struct kvm_vcpu *vcpu) {} static inline void kvm_pmu_sync_hwstate(struct kvm_vcpu *vcpu) {} static inline bool kvm_pmu_should_notify_user(struct kvm_vcpu *vcpu) diff --git a/virt/kvm/arm/pmu.c b/virt/kvm/arm/pmu.c index 1c5b76c..c5a722a 100644 --- a/virt/kvm/arm/pmu.c +++ b/virt/kvm/arm/pmu.c @@ -135,13 +135,13 @@ u64 kvm_pmu_valid_counter_mask(struct kvm_vcpu *vcpu) } /** - * kvm_pmu_enable_counter - enable selected PMU counter + * kvm_pmu_enable_counter_mask - enable selected PMU counters * @vcpu: The vcpu pointer * @val: the value guest writes to PMCNTENSET register * * Call perf_event_enable to start counting the perf event */ -void kvm_pmu_enable_counter(struct kvm_vcpu *vcpu, u64 val) +void kvm_pmu_enable_counter_mask(struct kvm_vcpu *vcpu, u64 val) { int i; struct kvm_pmu *pmu = &vcpu->arch.pmu; @@ -164,13 +164,13 @@ void kvm_pmu_enable_counter(struct kvm_vcpu *vcpu, u64 val) } /** - * kvm_pmu_disable_counter - disable selected PMU counter + * kvm_pmu_disable_counter_mask - disable selected PMU counters * @vcpu: The vcpu pointer * @val: the value guest writes to PMCNTENCLR register * * Call perf_event_disable to stop counting the perf event */ -void kvm_pmu_disable_counter(struct kvm_vcpu *vcpu, u64 val) +void kvm_pmu_disable_counter_mask(struct kvm_vcpu *vcpu, u64 val) { int i; struct kvm_pmu *pmu = &vcpu->arch.pmu; @@ -347,10 +347,10 @@ void kvm_pmu_handle_pmcr(struct kvm_vcpu *vcpu, u64 val) mask = kvm_pmu_valid_counter_mask(vcpu); if (val & ARMV8_PMU_PMCR_E) { - kvm_pmu_enable_counter(vcpu, + kvm_pmu_enable_counter_mask(vcpu, __vcpu_sys_reg(vcpu, PMCNTENSET_EL0) & mask); } else { - kvm_pmu_disable_counter(vcpu, mask); + kvm_pmu_disable_counter_mask(vcpu, mask); } if (val & ARMV8_PMU_PMCR_C)