From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by smtp.lore.kernel.org (Postfix) with ESMTP id 021E8C43334 for ; Thu, 30 Jun 2022 13:58:08 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 87F044B4A7; Thu, 30 Jun 2022 09:58:08 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Authentication-Results: mm01.cs.columbia.edu (amavisd-new); dkim=softfail (fail, message has been altered) header.i=@kernel.org Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 9g-ee7dWmftv; Thu, 30 Jun 2022 09:58:07 -0400 (EDT) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 0835F4B4B0; Thu, 30 Jun 2022 09:58:05 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id B6F424B32E for ; Thu, 30 Jun 2022 09:58:03 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id RZaXpxYTSTiM for ; Thu, 30 Jun 2022 09:58:02 -0400 (EDT) Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id 572194B4A2 for ; Thu, 30 Jun 2022 09:58:02 -0400 (EDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id D57F76218F; Thu, 30 Jun 2022 13:58:01 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id F0889C341CC; Thu, 30 Jun 2022 13:57:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1656597481; bh=C14puFIZ18CG7PnpKVQP1lUNy+y92Os2YQO02ZGN8Kg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=SFoeQjw+NiH7n3qkSp1otTQZiqe5BRQ6KTuqyNG/4OSaTeYIm5D/JUneLvS9utJ+2 epiu50SrsjggJD7Go3BhdC6m2tWnNLJeQAptChm5uEQWZpsfeX3UOOOrH8ZZtILDKv 08juWQ5HSTwfMLcXEmhvyO0nVFznrIqJS+dsqzOu0/EfROn80gBgwQMzki5k7wz7RO IFkAqavuiYjBjVpGp9x80Jv/kzIaXb5FHXYLDrLbWW2cJrocHjKvxR7Ygv5sfBdsP/ AX0FYiEcozxpjEabNcccgeI+LwDhQDAlVj8YraTpB8C6/QzjYvoch5XQnPbfHE2txB 2X13EoRfU1nJA== From: Will Deacon To: kvmarm@lists.cs.columbia.edu Subject: [PATCH v2 01/24] KVM: arm64: Move hyp refcount manipulation helpers Date: Thu, 30 Jun 2022 14:57:24 +0100 Message-Id: <20220630135747.26983-2-will@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20220630135747.26983-1-will@kernel.org> References: <20220630135747.26983-1-will@kernel.org> MIME-Version: 1.0 Cc: Marc Zyngier , kernel-team@android.com, kvm@vger.kernel.org, Andy Lutomirski , linux-arm-kernel@lists.infradead.org, Michael Roth , Catalin Marinas , Chao Peng , Will Deacon X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu From: Quentin Perret We will soon need to manipulate struct hyp_page refcounts from outside page_alloc.c, so move the helpers to a header file. Signed-off-by: Quentin Perret Signed-off-by: Will Deacon --- arch/arm64/kvm/hyp/include/nvhe/memory.h | 18 ++++++++++++++++++ arch/arm64/kvm/hyp/nvhe/page_alloc.c | 19 ------------------- 2 files changed, 18 insertions(+), 19 deletions(-) diff --git a/arch/arm64/kvm/hyp/include/nvhe/memory.h b/arch/arm64/kvm/hyp/include/nvhe/memory.h index 592b7edb3edb..418b66a82a50 100644 --- a/arch/arm64/kvm/hyp/include/nvhe/memory.h +++ b/arch/arm64/kvm/hyp/include/nvhe/memory.h @@ -45,4 +45,22 @@ static inline int hyp_page_count(void *addr) return p->refcount; } +static inline void hyp_page_ref_inc(struct hyp_page *p) +{ + BUG_ON(p->refcount == USHRT_MAX); + p->refcount++; +} + +static inline int hyp_page_ref_dec_and_test(struct hyp_page *p) +{ + BUG_ON(!p->refcount); + p->refcount--; + return (p->refcount == 0); +} + +static inline void hyp_set_page_refcounted(struct hyp_page *p) +{ + BUG_ON(p->refcount); + p->refcount = 1; +} #endif /* __KVM_HYP_MEMORY_H */ diff --git a/arch/arm64/kvm/hyp/nvhe/page_alloc.c b/arch/arm64/kvm/hyp/nvhe/page_alloc.c index d40f0b30b534..1ded09fc9b10 100644 --- a/arch/arm64/kvm/hyp/nvhe/page_alloc.c +++ b/arch/arm64/kvm/hyp/nvhe/page_alloc.c @@ -144,25 +144,6 @@ static struct hyp_page *__hyp_extract_page(struct hyp_pool *pool, return p; } -static inline void hyp_page_ref_inc(struct hyp_page *p) -{ - BUG_ON(p->refcount == USHRT_MAX); - p->refcount++; -} - -static inline int hyp_page_ref_dec_and_test(struct hyp_page *p) -{ - BUG_ON(!p->refcount); - p->refcount--; - return (p->refcount == 0); -} - -static inline void hyp_set_page_refcounted(struct hyp_page *p) -{ - BUG_ON(p->refcount); - p->refcount = 1; -} - static void __hyp_put_page(struct hyp_pool *pool, struct hyp_page *p) { if (hyp_page_ref_dec_and_test(p)) -- 2.37.0.rc0.161.g10f37bed90-goog _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm