From patchwork Mon May 4 01:09:10 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ira Weiny X-Patchwork-Id: 11524869 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 A6A1C174A for ; Mon, 4 May 2020 01:09:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 96E28207DD for ; Mon, 4 May 2020 01:09:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727816AbgEDBJ3 (ORCPT ); Sun, 3 May 2020 21:09:29 -0400 Received: from mga05.intel.com ([192.55.52.43]:31588 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727097AbgEDBJ2 (ORCPT ); Sun, 3 May 2020 21:09:28 -0400 IronPort-SDR: DMNITk+k7HlbatdB6zXp6F1mNEs0zHc/Feh07TekMU7ygHzsnFsJYsgnTqew2MCZxakvScw3sF LYmqX0LaxAVQ== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 May 2020 18:09:28 -0700 IronPort-SDR: 1bVoB4qieEEpgiINwJqOQjpqs6XmNA2TyX/l62INV5ILFJeC3pCrUNHGyeeWoQefqo/wcHYSxL CJqg8qvEGylQ== X-IronPort-AV: E=Sophos;i="5.73,350,1583222400"; d="scan'208";a="406323237" Received: from iweiny-desk2.sc.intel.com (HELO localhost) ([10.3.52.147]) by orsmga004-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 May 2020 18:09:27 -0700 From: ira.weiny@intel.com To: linux-kernel@vger.kernel.org, Andrew Morton , Christian Koenig , Huang Rui Cc: Ira Weiny , Christoph Hellwig , Thomas Bogendoerfer , "James E.J. Bottomley" , Helge Deller , Benjamin Herrenschmidt , Paul Mackerras , "David S. Miller" , Thomas Gleixner , Ingo Molnar , Borislav Petkov , x86@kernel.org, "H. Peter Anvin" , Dave Hansen , Andy Lutomirski , Peter Zijlstra , Chris Zankel , Max Filippov , Dan Williams , linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, sparclinux@vger.kernel.org, linux-xtensa@linux-xtensa.org, dri-devel@lists.freedesktop.org Subject: [PATCH V2 09/11] arch/kmap: Don't hard code kmap_prot values Date: Sun, 3 May 2020 18:09:10 -0700 Message-Id: <20200504010912.982044-10-ira.weiny@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200504010912.982044-1-ira.weiny@intel.com> References: <20200504010912.982044-1-ira.weiny@intel.com> MIME-Version: 1.0 Sender: linux-mips-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org From: Ira Weiny To support kmap_atomic_prot() on all architectures each arch must support protections passed in to them. Change csky, mips, nds32 and xtensa to use their global constant kmap_prot rather than a hard coded value which was equal. Reviewed-by: Christoph Hellwig Signed-off-by: Ira Weiny --- changes from V1: Mention that kmap_prot is a constant in commit message --- arch/csky/mm/highmem.c | 2 +- arch/mips/mm/highmem.c | 2 +- arch/nds32/mm/highmem.c | 2 +- arch/xtensa/mm/highmem.c | 2 +- 4 files changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/csky/mm/highmem.c b/arch/csky/mm/highmem.c index 0aafbbbe651c..f4311669b5bb 100644 --- a/arch/csky/mm/highmem.c +++ b/arch/csky/mm/highmem.c @@ -32,7 +32,7 @@ void *kmap_atomic_high(struct page *page) #ifdef CONFIG_DEBUG_HIGHMEM BUG_ON(!pte_none(*(kmap_pte - idx))); #endif - set_pte(kmap_pte-idx, mk_pte(page, PAGE_KERNEL)); + set_pte(kmap_pte-idx, mk_pte(page, kmap_prot)); flush_tlb_one((unsigned long)vaddr); return (void *)vaddr; diff --git a/arch/mips/mm/highmem.c b/arch/mips/mm/highmem.c index 155fbb107b35..87023bd1a33c 100644 --- a/arch/mips/mm/highmem.c +++ b/arch/mips/mm/highmem.c @@ -29,7 +29,7 @@ void *kmap_atomic_high(struct page *page) #ifdef CONFIG_DEBUG_HIGHMEM BUG_ON(!pte_none(*(kmap_pte - idx))); #endif - set_pte(kmap_pte-idx, mk_pte(page, PAGE_KERNEL)); + set_pte(kmap_pte-idx, mk_pte(page, kmap_prot)); local_flush_tlb_one((unsigned long)vaddr); return (void*) vaddr; diff --git a/arch/nds32/mm/highmem.c b/arch/nds32/mm/highmem.c index f6e6915c0d31..809f8c830f06 100644 --- a/arch/nds32/mm/highmem.c +++ b/arch/nds32/mm/highmem.c @@ -21,7 +21,7 @@ void *kmap_atomic_high(struct page *page) idx = type + KM_TYPE_NR * smp_processor_id(); vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx); - pte = (page_to_pfn(page) << PAGE_SHIFT) | (PAGE_KERNEL); + pte = (page_to_pfn(page) << PAGE_SHIFT) | (kmap_prot); ptep = pte_offset_kernel(pmd_off_k(vaddr), vaddr); set_pte(ptep, pte); diff --git a/arch/xtensa/mm/highmem.c b/arch/xtensa/mm/highmem.c index 4de323e43682..50168b09510a 100644 --- a/arch/xtensa/mm/highmem.c +++ b/arch/xtensa/mm/highmem.c @@ -48,7 +48,7 @@ void *kmap_atomic_high(struct page *page) #ifdef CONFIG_DEBUG_HIGHMEM BUG_ON(!pte_none(*(kmap_pte + idx))); #endif - set_pte(kmap_pte + idx, mk_pte(page, PAGE_KERNEL_EXEC)); + set_pte(kmap_pte + idx, mk_pte(page, kmap_prot)); return (void *)vaddr; }