From patchwork Mon Apr 8 20:23:10 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hugh Dickins X-Patchwork-Id: 1081474 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 44dMNY2jDtz9sNm for ; Tue, 9 Apr 2019 06:25:01 +1000 (AEST) Authentication-Results: ozlabs.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=google.com header.i=@google.com header.b="XzoQ5uk9"; dkim-atps=neutral Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 44dMNY1cQtzDqLG for ; Tue, 9 Apr 2019 06:25:01 +1000 (AEST) X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=google.com (client-ip=2607:f8b0:4864:20::431; helo=mail-pf1-x431.google.com; envelope-from=hughd@google.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=google.com header.i=@google.com header.b="XzoQ5uk9"; dkim-atps=neutral Received: from mail-pf1-x431.google.com (mail-pf1-x431.google.com [IPv6:2607:f8b0:4864:20::431]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 44dMM00KxdzDqK9 for ; Tue, 9 Apr 2019 06:23:33 +1000 (AEST) Received: by mail-pf1-x431.google.com with SMTP id 188so8270685pfd.8 for ; Mon, 08 Apr 2019 13:23:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:from:to:cc:subject:message-id:user-agent:mime-version; bh=2/plURz0O/kvp62nzrIaAO156gML2Ck7ZIjU/iprOVA=; b=XzoQ5uk96KHSveBdJCs6H+S8Cp4n1TIcFB5ojCBkIQ1v9BNXA5eT3zkNLe0uWMF6W1 DYCXkfW2stKlrr1nIsb+DwUu+/CDdtKGSYQWnIany7ygqybu2TLsonSy1Ib+KMUhrQ4O EO+0JXVG5sM6dgep35nMvk5t5JmUwd5XauEWRdzYGUz/LnluiizJp/WqUqra/l4M5RcD qzjPg07l2rgfRJnUflE89o5B3pSTRtoITW1tWecsNFs7ijiDVwPoEjWcdEcqUvR7DL4C VZAjmoBNZTk/cMre1XjEaOESlW+ShUtXIa6Dnk8IqNUh1as6da/kapBHTvufPxnepD1Y /aQA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:user-agent :mime-version; bh=2/plURz0O/kvp62nzrIaAO156gML2Ck7ZIjU/iprOVA=; b=KjPaZIB/G6Jku9vl65/mf5C8yZT7eC7Mqg1l0OAlI8HUPRd3AgvyZjqWfUMcBgGrLG f7A6sTGWFDeUncKUDavQaLHNimTBmkZO1L3qwHq6RCJkiyouueilg/lpGlF6aJEEoupJ 2GNE1FggFu+Kri4COwfCDvuDjDR1v19gpocnFX0ms0pZqVGdKtSwBGQw3lBRLZCe2wI3 niaaS4vTYCiV+TXTqTW11Qwr5F0mus0Uhv50lOQYCq8bMcaqi9LN8pyHyTe6PBe+iiwa Qg0Imm8jv0pRgoIV/F9yrrkYjPrni5wqRYtZg9CFUBWniPrkpPPBmfqDXj6gaagZKhBx NufQ== X-Gm-Message-State: APjAAAUtb5mqh+UW5A6ZFTOWJY5XlAolnn4MF9TkqB87QSmsauRik2l4 BP0akknd3Ejf1fsMm0Cq9qCJlg== X-Google-Smtp-Source: APXvYqwMUipIgX4gLd9oCEzoY3Q+Rqc4f36bfR714GeDU8O5vxj7ObU5MMNI+5jZITZgYokSvXIeSg== X-Received: by 2002:a63:2b0d:: with SMTP id r13mr30002742pgr.400.1554755009311; Mon, 08 Apr 2019 13:23:29 -0700 (PDT) Received: from [100.112.89.103] ([104.133.8.103]) by smtp.gmail.com with ESMTPSA id 4sm49396590pgx.68.2019.04.08.13.23.27 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 08 Apr 2019 13:23:28 -0700 (PDT) Date: Mon, 8 Apr 2019 13:23:10 -0700 (PDT) From: Hugh Dickins X-X-Sender: hugh@eggly.anvils To: Ben Hutchings Subject: ppc64 4kB: MAX_PHYSMEM_BITS undefined Message-ID: User-Agent: Alpine 2.11 (LSU 23 2013-08-11) MIME-Version: 1.0 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Hugh Dickins , linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" Hi Ben, 5.1-rc's 8bc086899816 ("powerpc/mm: Only define MAX_PHYSMEM_BITS in SPARSEMEM configurations") has sadly broken the build for my config on the G5, which has (amongst a few other options): CONFIG_PPC_BOOK3S_64=y CONFIG_PPC_BOOK3S=y CONFIG_ARCH_SPARSEMEM_ENABLE=y CONFIG_ARCH_SPARSEMEM_DEFAULT=y CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_64K_PAGES is not set # CONFIG_SPARSEMEM_MANUAL is not set CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y Easily enough worked around for me by... ...but I don't suppose that's what you want to do. I wonder if there was a momentary mixup between 64 bits and 64kB pages - I'm a non-conformist using 4kB pages on ppc64. Hugh --- 5.1-rc4/arch/powerpc/include/asm/mmu.h 2019-03-24 15:40:26.833378215 -0700 +++ linux/arch/powerpc/include/asm/mmu.h 2019-04-07 19:51:11.419295089 -0700 @@ -352,7 +352,7 @@ static inline bool strict_kernel_rwx_ena #if defined(CONFIG_SPARSEMEM_VMEMMAP) && defined(CONFIG_SPARSEMEM_EXTREME) && \ defined (CONFIG_PPC_64K_PAGES) #define MAX_PHYSMEM_BITS 51 -#elif defined(CONFIG_SPARSEMEM) +#else #define MAX_PHYSMEM_BITS 46 #endif