From patchwork Wed May 8 06:17:07 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mike Rapoport X-Patchwork-Id: 1096706 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=lists.infradead.org (client-ip=2607:7c80:54:e::133; helo=bombadil.infradead.org; envelope-from=linux-um-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.ibm.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="K9yC9Ger"; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=infradead.org header.i=@infradead.org header.b="2HsRX7zZ"; dkim-atps=neutral Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 44zRC33QxBz9s9T for ; Wed, 8 May 2019 16:19:27 +1000 (AEST) 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:Message-Id: References:In-Reply-To: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=kwQTrOBbzDtr4uivrI069Q8lX/jYwfI61Sq/54orNpk=; b=K9yC9Ger+Tq3Ydpdwj3DSr9Mk9 DAqUAzmNq969LTYUo3Jio2BosodIUm4U/dOZ30YDv9r0TtIVsg/qabfseWHl4fD42qO9QNkVOB7gu CHQwsOiwaxOGjzhlTA3QZNg8Jq0ehFrXjHUfejO4rU5GCJWFYSklFvByzD2AxXbCr4i9hOAsMpRHx oMV6EMbJmSvWgwc+xml8PfV7qgJjd+nEiI5xuQgcd9GPra97YVqNyIdawH8j/LapcHSA9J8jIH/eX 7tT2jZQ9F33Weaf+13InSUkdpJs9AU4pk1jg1JyC3eLqG1bCaPHbP349ligvYVag7bWe5V//pEsjc 6sH0Gh6Q==; 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 1hOFvC-00023G-Uy; Wed, 08 May 2019 06:19:18 +0000 Received: from merlin.infradead.org ([2001:8b0:10b:1231::1]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hOFuA-0000eT-F8 for linux-um@bombadil.infradead.org; Wed, 08 May 2019 06:18:14 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.20170209; h=Message-Id:References:In-Reply-To:Date: Subject:Cc:To:From:Sender:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=1WhkMOf9YAuwG2fro1ZYKVlionAxnm9JkehCHmz44mE=; b=2HsRX7zZNHbIMPdZTDtbeZkv5 UK8hIhFiwK+d8qOZxnx5JDjYMGwOHTecxDPl1lfjv8pZC0+trm0KNKzcgme6ol3/zwVze/hSlE+hl zXYtjnOhNKz677gOc7gTZE8FNtq8V+NIiHgIvABBjdd4UGssfDJCgEeVjLqlHS7oUen7LovulKr71 COMZtGrgxQCexAqpbwWcyKBMwF6Ys2BrLf5MrKBsA+78072aLF3+Bw4Y6Qhsh7toqyXwdOD5MkT+I dPyWdQWyDKnlYGF1ipxd9rTsGiv2BPO4dijebWUSdzqWChMKwT2ER6Dic179LLHCVrtcCM2BjT3iS DglqJyF1A==; Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5] helo=mx0a-001b2d01.pphosted.com) by merlin.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hOFu7-0002cy-AI for linux-um@lists.infradead.org; Wed, 08 May 2019 06:18:12 +0000 Received: from pps.filterd (m0098413.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x486Gmtp015337 for ; Wed, 8 May 2019 02:18:07 -0400 Received: from e06smtp04.uk.ibm.com (e06smtp04.uk.ibm.com [195.75.94.100]) by mx0b-001b2d01.pphosted.com with ESMTP id 2sbq4h6ggr-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Wed, 08 May 2019 02:18:07 -0400 Received: from localhost by e06smtp04.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 8 May 2019 07:18:05 +0100 Received: from b06cxnps4075.portsmouth.uk.ibm.com (9.149.109.197) by e06smtp04.uk.ibm.com (192.168.101.134) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Wed, 8 May 2019 07:17:57 +0100 Received: from d06av24.portsmouth.uk.ibm.com (d06av24.portsmouth.uk.ibm.com [9.149.105.60]) by b06cxnps4075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x486Hugh59834568 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 8 May 2019 06:17:56 GMT Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 533124203F; Wed, 8 May 2019 06:17:56 +0000 (GMT) Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 0A92342042; Wed, 8 May 2019 06:17:53 +0000 (GMT) Received: from rapoport-lnx (unknown [9.148.8.112]) by d06av24.portsmouth.uk.ibm.com (Postfix) with ESMTPS; Wed, 8 May 2019 06:17:52 +0000 (GMT) Received: by rapoport-lnx (sSMTP sendmail emulation); Wed, 08 May 2019 09:17:52 +0300 From: Mike Rapoport To: Andrew Morton Subject: [PATCH v2 10/14] nios2: switch to generic version of pte allocation Date: Wed, 8 May 2019 09:17:07 +0300 X-Mailer: git-send-email 2.7.4 In-Reply-To: <1557296232-15361-1-git-send-email-rppt@linux.ibm.com> References: <1557296232-15361-1-git-send-email-rppt@linux.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 19050806-0016-0000-0000-000002796FE1 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19050806-0017-0000-0000-000032D61D35 Message-Id: <1557296232-15361-11-git-send-email-rppt@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-05-08_05:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=2 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=762 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1905080040 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190508_021811_410831_6518BE82 X-CRM114-Status: GOOD ( 26.34 ) X-Spam-Score: -0.7 (/) X-Spam-Report: SpamAssassin version 3.4.2 on merlin.infradead.org summary: Content analysis details: (-0.7 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at https://www.dnswl.org/, low trust [148.163.158.5 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record X-BeenThere: linux-um@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Michal Hocko , Catalin Marinas , Palmer Dabbelt , linux-mips@vger.kernel.org, linux-mm@kvack.org, Guo Ren , linux-hexagon@vger.kernel.org, linux-riscv@lists.infradead.org, linux-arch@vger.kernel.org, Michael Ellerman , Helge Deller , x86@kernel.org, Russell King , Matthew Wilcox , Mike Rapoport , Geert Uytterhoeven , Matt Turner , Sam Creasey , Arnd Bergmann , Anshuman Khandual , linux-um@lists.infradead.org, Richard Weinberger , linux-m68k@lists.linux-m68k.org, Greentime Hu , nios2-dev@lists.rocketboards.org, Guan Xuetao , linux-arm-kernel@lists.infradead.org, linux-parisc@vger.kernel.org, linux-kernel@vger.kernel.org, Richard Kuo , Paul Burton , linux-alpha@vger.kernel.org, Ley Foon Tan , linuxppc-dev@lists.ozlabs.org MIME-Version: 1.0 Sender: "linux-um" Errors-To: linux-um-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org nios2 allocates kernel PTE pages with __get_free_pages(GFP_KERNEL | __GFP_ZERO, PTE_ORDER); and user page tables with pte = alloc_pages(GFP_KERNEL, PTE_ORDER); if (pte) clear_highpage(); The PTE_ORDER is hardwired to zero, which makes nios2 implementation almost identical to the generic one. Switch nios2 to the generic version that does exactly the same thing for the kernel page tables and adds __GFP_ACCOUNT for the user PTEs. The pte_free_kernel() and pte_free() versions on nios2 are identical to the generic ones and can be simply dropped. Signed-off-by: Mike Rapoport --- arch/nios2/include/asm/pgalloc.h | 37 ++----------------------------------- 1 file changed, 2 insertions(+), 35 deletions(-) diff --git a/arch/nios2/include/asm/pgalloc.h b/arch/nios2/include/asm/pgalloc.h index 3a149ea..4bc8cf7 100644 --- a/arch/nios2/include/asm/pgalloc.h +++ b/arch/nios2/include/asm/pgalloc.h @@ -12,6 +12,8 @@ #include +#include /* for pte_{alloc,free}_one */ + static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte) { @@ -37,41 +39,6 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) free_pages((unsigned long)pgd, PGD_ORDER); } -static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm) -{ - pte_t *pte; - - pte = (pte_t *) __get_free_pages(GFP_KERNEL|__GFP_ZERO, PTE_ORDER); - - return pte; -} - -static inline pgtable_t pte_alloc_one(struct mm_struct *mm) -{ - struct page *pte; - - pte = alloc_pages(GFP_KERNEL, PTE_ORDER); - if (pte) { - if (!pgtable_page_ctor(pte)) { - __free_page(pte); - return NULL; - } - clear_highpage(pte); - } - return pte; -} - -static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) -{ - free_pages((unsigned long)pte, PTE_ORDER); -} - -static inline void pte_free(struct mm_struct *mm, struct page *pte) -{ - pgtable_page_dtor(pte); - __free_pages(pte, PTE_ORDER); -} - #define __pte_free_tlb(tlb, pte, addr) \ do { \ pgtable_page_dtor(pte); \