From patchwork Thu Sep 10 14:34:45 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Boqun Feng X-Patchwork-Id: 11769293 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9665859D for ; Thu, 10 Sep 2020 21:07:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 67A5021D91 for ; Thu, 10 Sep 2020 21:07:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="m8lLPubC" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726518AbgIJVHA (ORCPT ); Thu, 10 Sep 2020 17:07:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56788 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731086AbgIJOfT (ORCPT ); Thu, 10 Sep 2020 10:35:19 -0400 Received: from mail-ej1-x642.google.com (mail-ej1-x642.google.com [IPv6:2a00:1450:4864:20::642]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5E678C06179A; Thu, 10 Sep 2020 07:35:11 -0700 (PDT) Received: by mail-ej1-x642.google.com with SMTP id e23so9078772eja.3; Thu, 10 Sep 2020 07:35:11 -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=5XgEkGxv2E2AECNr+4xn15ufLIzEXL6wFg7AGQm6deE=; b=m8lLPubCJpHMsQ48XiovlcumnVbXdBf42PYCwXR+nF9UI7WC7XIGLSSRzwevHANLQk wi+0wfVGtDuv9VyzBxk5x6VvsrREhkADpJa4OxRgqXz2AsYSfvBcgqB0ToFEWO8u3tWN mWOxetMUEYFRa+XpycbBi5i4G605LdbyPmRhVhTNMy5f6leotLr/LGdAlkRL+NLA9BDM CELVU0bm48OhKDc6iwUzlOsTrlz9JZSDqsgAmp+hJEf/yqqwkzoy3uqLTvQObrWtpw8s wMHtcul6J5cHJystPlmiDiwcamkqhsn68STmLJvwBAFWfyFigrFAFaQ8vDu4yzUXi4wm DAQA== 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=5XgEkGxv2E2AECNr+4xn15ufLIzEXL6wFg7AGQm6deE=; b=O9jhSXk/QKFHBrdbq8XZPfEctxG/yErETsnLIfyXSizPqBYY/FY8cUzGFskNddW7Rq 6JLv5zQW3waEVU+xNCB0IACGI8Z1Qymi9UGBbIMVVVXOMM0T4j0QR8K5cWpEwDsG6yHq 9dG4ifNdnTQ6a8j3Yjij96tDNaN3V/7zBXeuGlAJ3HMrxbjVbMyuJzs5varp9hFoO7Jo ChdQCqZndN+gltxZDrRkS4U5S/9Cyscyzkph2tuavHaAcykzE3J0vvxssHAzq5+xKT57 MMD/gjpthmboTffIqI/YErsXHU3ufiAtTIgDT4Cyl3ZvMQOdTOaapmq25zWNBrtAKHIO mc1A== X-Gm-Message-State: AOAM5321KPyknoZ6QYpEq+YWLqWe/0smj3BPyUKS4LNL1rnDjWzcE36L CJaSk3TxSCkM7vU5EHHvp1eQOkDelxg= X-Google-Smtp-Source: ABdhPJwt6EVWdU+oFrWM8ATuZDym8zURbyb9o2FHDvZYxl/IdS63b9usGvYjJ0DU6WKUJgG2KJ7UDA== X-Received: by 2002:a17:906:15cc:: with SMTP id l12mr9418864ejd.7.1599748509943; Thu, 10 Sep 2020 07:35:09 -0700 (PDT) Received: from auth2-smtp.messagingengine.com (auth2-smtp.messagingengine.com. [66.111.4.228]) by smtp.gmail.com with ESMTPSA id h10sm6974601ejt.93.2020.09.10.07.35.04 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 10 Sep 2020 07:35:08 -0700 (PDT) Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailauth.nyi.internal (Postfix) with ESMTP id 0404A27C00A1; Thu, 10 Sep 2020 10:35:04 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute3.internal (MEProxy); Thu, 10 Sep 2020 10:35:04 -0400 X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeduiedrudehjedgjedvucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne goufhorhhtvggutfgvtghiphdvucdlgedtmdenucfjughrpefhvffufffkofgjfhgggfes tdekredtredttdenucfhrhhomhepuehoqhhunhcuhfgvnhhguceosghoqhhunhdrfhgvnh hgsehgmhgrihhlrdgtohhmqeenucggtffrrghtthgvrhhnpeehvdevteefgfeiudettdef vedvvdelkeejueffffelgeeuhffhjeetkeeiueeuleenucfkphephedvrdduheehrdduud durdejudenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhgrihhlfhhrohhm pegsohhquhhnodhmvghsmhhtphgruhhthhhpvghrshhonhgrlhhithihqdeiledvgeehtd eigedqudejjeekheehhedvqdgsohhquhhnrdhfvghngheppehgmhgrihhlrdgtohhmsehf ihigmhgvrdhnrghmvg X-ME-Proxy: Received: from localhost (unknown [52.155.111.71]) by mail.messagingengine.com (Postfix) with ESMTPA id E073B328005E; Thu, 10 Sep 2020 10:35:02 -0400 (EDT) From: Boqun Feng To: linux-hyperv@vger.kernel.org, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-scsi@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: "K. Y. Srinivasan" , Haiyang Zhang , Stephen Hemminger , Wei Liu , Jiri Kosina , Benjamin Tissoires , Dmitry Torokhov , "David S. Miller" , Jakub Kicinski , "James E.J. Bottomley" , "Martin K. Petersen" , Michael Kelley , will@kernel.org, ardb@kernel.org, arnd@arndb.de, catalin.marinas@arm.com, mark.rutland@arm.com, maz@kernel.org, Boqun Feng Subject: [PATCH v3 01/11] Drivers: hv: vmbus: Always use HV_HYP_PAGE_SIZE for gpadl Date: Thu, 10 Sep 2020 22:34:45 +0800 Message-Id: <20200910143455.109293-2-boqun.feng@gmail.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200910143455.109293-1-boqun.feng@gmail.com> References: <20200910143455.109293-1-boqun.feng@gmail.com> MIME-Version: 1.0 Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org Since the hypervisor always uses 4K as its page size, the size of PFNs used for gpadl should be HV_HYP_PAGE_SIZE rather than PAGE_SIZE, so adjust this accordingly as the preparation for supporting 16K/64K page size guests. No functional changes on x86, since PAGE_SIZE is always 4k (equals to HV_HYP_PAGE_SIZE). Signed-off-by: Boqun Feng Reviewed-by: Michael Kelley --- drivers/hv/channel.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c index 3ebda7707e46..4d0f8e5a88d6 100644 --- a/drivers/hv/channel.c +++ b/drivers/hv/channel.c @@ -22,9 +22,6 @@ #include "hyperv_vmbus.h" -#define NUM_PAGES_SPANNED(addr, len) \ -((PAGE_ALIGN(addr + len) >> PAGE_SHIFT) - (addr >> PAGE_SHIFT)) - static unsigned long virt_to_hvpfn(void *addr) { phys_addr_t paddr; @@ -35,7 +32,7 @@ static unsigned long virt_to_hvpfn(void *addr) else paddr = __pa(addr); - return paddr >> PAGE_SHIFT; + return paddr >> HV_HYP_PAGE_SHIFT; } /* @@ -330,7 +327,7 @@ static int create_gpadl_header(void *kbuffer, u32 size, int pfnsum, pfncount, pfnleft, pfncurr, pfnsize; - pagecount = size >> PAGE_SHIFT; + pagecount = size >> HV_HYP_PAGE_SHIFT; /* do we need a gpadl body msg */ pfnsize = MAX_SIZE_CHANNEL_MESSAGE - @@ -360,7 +357,7 @@ static int create_gpadl_header(void *kbuffer, u32 size, gpadl_header->range[0].byte_count = size; for (i = 0; i < pfncount; i++) gpadl_header->range[0].pfn_array[i] = virt_to_hvpfn( - kbuffer + PAGE_SIZE * i); + kbuffer + HV_HYP_PAGE_SIZE * i); *msginfo = msgheader; pfnsum = pfncount; @@ -412,7 +409,7 @@ static int create_gpadl_header(void *kbuffer, u32 size, */ for (i = 0; i < pfncurr; i++) gpadl_body->pfn[i] = virt_to_hvpfn( - kbuffer + PAGE_SIZE * (pfnsum + i)); + kbuffer + HV_HYP_PAGE_SIZE * (pfnsum + i)); /* add to msg header */ list_add_tail(&msgbody->msglistentry, @@ -441,7 +438,7 @@ static int create_gpadl_header(void *kbuffer, u32 size, gpadl_header->range[0].byte_count = size; for (i = 0; i < pagecount; i++) gpadl_header->range[0].pfn_array[i] = virt_to_hvpfn( - kbuffer + PAGE_SIZE * i); + kbuffer + HV_HYP_PAGE_SIZE * i); *msginfo = msgheader; }