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[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 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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 --- 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; } -- 2.28.0 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 X-Spam-Level: X-Spam-Status: No, score=-12.5 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_SIGNED,DKIM_VALID,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 56707C43461 for ; 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[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 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200910_103511_345520_E24BE642 X-CRM114-Status: GOOD ( 17.34 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, maz@kernel.org, Wei Liu , Dmitry Torokhov , Stephen Hemminger , arnd@arndb.de, "Martin K. Petersen" , ardb@kernel.org, will@kernel.org, Haiyang Zhang , Jiri Kosina , Boqun Feng , Michael Kelley , Benjamin Tissoires , catalin.marinas@arm.com, Jakub Kicinski , "K. Y. Srinivasan" , "James E.J. Bottomley" , "David S. Miller" 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 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 --- 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; } -- 2.28.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel