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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7435ACD1284 for ; Fri, 5 Apr 2024 03:59:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=byAPlfC/AXxLQY+iYwX16R2YxMuZEEu6PzZwo+P0JzU=; b=0m5gu0U6NrT07T 3sGiTnpOHbZ6A4bhUUZWQbz5EyLJNxidylvzXzI4GfDS6UcieNq/QFRiR8dzM1bb+xJoh9lUQP5Lm NLXCzfwLwAevWzXiQmLZ3767QOQJ4gXuwR1Unbp1DscKJx/qT+WaMUxQTVZY5DkI9GuGaP7MpFllz /157JYzYAS9yCPHoTLvDJD077tdllWQVnVaVxBW/l3FFgjwMKCUXKSHbjcqJowKKzw4DDiQfrcg15 lOvpmQBIKQs0qizaUJgb3+mRShg27K5+cTPstZSlg0ZxBNRmDSaDwyItqGi+JzOF88vByRkvP2dyr T225CQeMVw5LrNi8ARNA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rsaju-000000056BU-3k68; Fri, 05 Apr 2024 03:59:42 +0000 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rsajr-0000000569P-1kXJ for linux-arm-kernel@lists.infradead.org; Fri, 05 Apr 2024 03:59:41 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1712289578; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=WkWvcTbJzSkExYMycNfVCal76y0x/9U7Vke5yfGSfCI=; b=JCG5H8+6OtcfMvXyn21QmZxCQo4/pEjuA/KXHzzpJEbadsarBqeAtqZ2bI99aiM0DNcTfi OpJ+ThNVrC6wsJO7zFSnDZMbml1r7Wjzi6EX8SCWoN3NmTIvXzaQRWT9n9W+ooCZ9+9DUh x4b50peFX7mJGCCiCdJeUy6KYYpqqCM= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-463-TR7JNRopNS-Cp8U1D4Uj8w-1; Thu, 04 Apr 2024 23:59:34 -0400 X-MC-Unique: TR7JNRopNS-Cp8U1D4Uj8w-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 8BF88101A520; Fri, 5 Apr 2024 03:59:33 +0000 (UTC) Received: from gshan-thinkpadx1nanogen2.remote.csb (unknown [10.64.136.81]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 7176B1074E; Fri, 5 Apr 2024 03:59:28 +0000 (UTC) From: Gavin Shan To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: catalin.marinas@arm.com, will@kernel.org, gshan@redhat.com, akpm@linux-foundation.org, maz@kernel.org, oliver.upton@linux.dev, ryan.roberts@arm.com, apopple@nvidia.com, rananta@google.com, mark.rutland@arm.com, v-songbaohua@oppo.com, yangyicong@hisilicon.com, shahuang@redhat.com, yihyu@redhat.com, shan.gavin@gmail.com Subject: [PATCH v3 3/3] arm64: tlb: Allow range operation for MAX_TLBI_RANGE_PAGES Date: Fri, 5 Apr 2024 13:58:52 +1000 Message-ID: <20240405035852.1532010-4-gshan@redhat.com> In-Reply-To: <20240405035852.1532010-1-gshan@redhat.com> References: <20240405035852.1532010-1-gshan@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.5 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240404_205940_104286_A9CAE907 X-CRM114-Status: GOOD ( 11.96 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org MAX_TLBI_RANGE_PAGES pages is covered by SCALE#3 and NUM#31 and it's supported now. Allow TLBI RANGE operation when the number of pages is equal to MAX_TLBI_RANGE_PAGES in __flush_tlb_range_nosync(). Suggested-by: Marc Zyngier Signed-off-by: Gavin Shan --- arch/arm64/include/asm/tlbflush.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/include/asm/tlbflush.h b/arch/arm64/include/asm/tlbflush.h index 243d71f7bc1f..95fbc8c05607 100644 --- a/arch/arm64/include/asm/tlbflush.h +++ b/arch/arm64/include/asm/tlbflush.h @@ -446,11 +446,11 @@ static inline void __flush_tlb_range_nosync(struct vm_area_struct *vma, * When not uses TLB range ops, we can handle up to * (MAX_DVM_OPS - 1) pages; * When uses TLB range ops, we can handle up to - * (MAX_TLBI_RANGE_PAGES - 1) pages. + * MAX_TLBI_RANGE_PAGES pages. */ if ((!system_supports_tlb_range() && (end - start) >= (MAX_DVM_OPS * stride)) || - pages >= MAX_TLBI_RANGE_PAGES) { + pages > MAX_TLBI_RANGE_PAGES) { flush_tlb_mm(vma->vm_mm); return; } -- 2.44.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel