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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 63622C41513 for ; Wed, 9 Aug 2023 22:45:38 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id CAB416B0071; Wed, 9 Aug 2023 18:45:37 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id C5AC86B0074; Wed, 9 Aug 2023 18:45:37 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id B223D8E0001; Wed, 9 Aug 2023 18:45:37 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id A33FA6B0071 for ; Wed, 9 Aug 2023 18:45:37 -0400 (EDT) Received: from smtpin22.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay03.hostedemail.com (Postfix) with ESMTP id 73270A07D4 for ; Wed, 9 Aug 2023 22:45:37 +0000 (UTC) X-FDA: 81106049514.22.BADC775 Received: from mail-ot1-f41.google.com (mail-ot1-f41.google.com [209.85.210.41]) by imf09.hostedemail.com (Postfix) with ESMTP id 983D8140021 for ; Wed, 9 Aug 2023 22:45:35 +0000 (UTC) Authentication-Results: imf09.hostedemail.com; dkim=pass header.d=rivosinc-com.20221208.gappssmtp.com header.s=20221208 header.b=g9IRPR3f; dmarc=none; spf=pass (imf09.hostedemail.com: domain of charlie@rivosinc.com designates 209.85.210.41 as permitted sender) smtp.mailfrom=charlie@rivosinc.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1691621135; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=IYXl3RrdquB9Ho5EWgj4Trb8iaNi5AAc7V62J8/U+2U=; b=kC9W65n7Mf0YrOKjSZiMq1AZKYrgLjiuulRj4oLlXBhjYZHBQOWzNNOivFfCMilQ9pcgQV +fm7Hr6kvK6cEv0te5MrK/L3EtbUXku3BTGwqN+up0OXswcqToPgk/IIjL7vokaT3ySWXw waO2BxhHBFhLZ6VY9l76IUYBRxXxcxo= ARC-Authentication-Results: i=1; imf09.hostedemail.com; dkim=pass header.d=rivosinc-com.20221208.gappssmtp.com header.s=20221208 header.b=g9IRPR3f; dmarc=none; spf=pass (imf09.hostedemail.com: domain of charlie@rivosinc.com designates 209.85.210.41 as permitted sender) smtp.mailfrom=charlie@rivosinc.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1691621135; a=rsa-sha256; cv=none; b=NXBkHM3I9TCZhpjBr9onRwdILSta0jsgdTJ8QEGwRqORzrdCtlOzQsMhj72lEhx/SfxOyR VBDwV1dtva2KyDyIqiT9RyPYLvR899eru4lIdyssjl41mQCPpjjOMTig2FP/IBrz7YAZ1i NXHEURrbCAOiulynKSKrDjDhO/uikWY= Received: by mail-ot1-f41.google.com with SMTP id 46e09a7af769-6bd0425ad4fso274721a34.2 for ; Wed, 09 Aug 2023 15:45:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rivosinc-com.20221208.gappssmtp.com; s=20221208; t=1691621134; x=1692225934; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=IYXl3RrdquB9Ho5EWgj4Trb8iaNi5AAc7V62J8/U+2U=; b=g9IRPR3fNObWkuKpLaklAg2KwEj1yjDutI0rhuDEpK8jY96HuF2psgETqe/XrmnPhD jva8ORxrZEcvXDzSK6ywrvMf/BOF5kgQJoeYleP5Uh4JpvzThQzWGsA6RUWhsNeJXNhb dte2auuNnDHSjHOLS9xgL5q/yWasM5K/0kAfqoTJRPYa0PDluh7q9HLvDdOKTlJJfHto 5PDPiHv5gn02yEggqEHSGPT4NdPuFZSBwP61bEbRpbLZtthJfw1UYCJiH1bc5vmQi21o 9S9lL0wqEs5RXiEqUFrEpZt5+wDoWrrGF0fXP006pmFQX7ibAWrur8lTWaj0rGrkUXhM Z9OQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1691621134; x=1692225934; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=IYXl3RrdquB9Ho5EWgj4Trb8iaNi5AAc7V62J8/U+2U=; b=bxdoom4j5RyxeckrlAroJadrdyA7XJOiTRRTgBJ8QC1whVD+YKxciEmFdoaxPOVGfT gCueSDAQLfKUDWa8bQc9e8Zsx2IJdIXqV/RIijBOg55UMoELbwvok58fDqPS+z+iwYUt Ws1vZ/2Vu5OL+cSIOavVADVKHJXt8YNnsjek8nyMQZz2LViICKvIPQimizSWtbc559oL PNwbRbBhEVZHG3qgSrRrOUl9e8ZZOkJGmv2pBmhP4f+HPlLxFXjUJJ/gtRrZpHgvP39P 5a5dL0WmlsRbgYgHyWbeBHL2E/+uoIjsssYTrIq9FXTJkwxH3mTDB5tEtDaeeOtb7mt7 8UiA== X-Gm-Message-State: AOJu0Ywyff+OktQ+sFELCq1ZjzsvbhisRGXHUpB0dQsPgAfZYcSx+iAm rEKOl/ttX2PI2w4YyrVSe7bd6Q== X-Google-Smtp-Source: AGHT+IH+4koeF0K3irmsPyfqmp0CgHhX+m/BeL70iUcm3M72Bf4Rf+ltNoovX0/mGJoR9LCbEeV95Q== X-Received: by 2002:a9d:7306:0:b0:6bc:8a9a:35a6 with SMTP id e6-20020a9d7306000000b006bc8a9a35a6mr486662otk.9.1691621134736; Wed, 09 Aug 2023 15:45:34 -0700 (PDT) Received: from ghost ([50.221.140.188]) by smtp.gmail.com with ESMTPSA id x9-20020a656aa9000000b00563df2ba23bsm108226pgu.50.2023.08.09.15.45.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 09 Aug 2023 15:45:34 -0700 (PDT) Date: Wed, 9 Aug 2023 15:45:31 -0700 From: Charlie Jenkins To: Conor Dooley Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, conor@kernel.org, paul.walmsley@sifive.com, palmer@rivosinc.com, aou@eecs.berkeley.edu, anup@brainfault.org, konstantin@linuxfoundation.org, linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org, mick@ics.forth.gr, jrtc27@jrtc27.com, rdunlap@infradead.org, alexghiti@rivosinc.com Subject: Re: [PATCH v9 0/4] RISC-V: mm: Make SV48 the default address space Message-ID: References: <20230809015110.3290774-1-charlie@rivosinc.com> <20230809-bobbing-unleaded-c3d5e1c57d96@wendy> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230809-bobbing-unleaded-c3d5e1c57d96@wendy> X-Rspam-User: X-Stat-Signature: 9ncqcsa8hbf44b651jt51cc4qh74ccdk X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 983D8140021 X-HE-Tag: 1691621135-811419 X-HE-Meta: U2FsdGVkX1/FmMPJo83JeNCzXsCRoD1U0KtiBgjJ6dvAaDE3326+6KNZ9ldOD5MJhIAAIlt4w+WsLjNM+zOu9XLX2kGl2TCR96janYD5ByWId+VBsa0y3d0fTci7b9ND56jpdqYtaAXm1NeUp88MPPKQNcdfc56UhwERjTt2uZXj1B4RlyB0Da/w7LddqS0ygE5NoVikgAiRIrYJGgwt6JCsLweb5OG18B2v21YB0Qa+UFSI6kPbXPdgF21TIv7C+BXPiTmkQ0+zoF9HPPOLELa4aiYR7uu1XQc3GUTA09vRzwy7NcyH83HczLi8sXt5HICKc/adEeDgqijT4zyLzeoyxC+gQTo3+yeuQYG0yrjth0bToTq4cgZ/pduJ9+WKwJiNS8716/CL7gRVZqmzt2kFKDNTpwYOVyrr05iiaQS20bfrKeUzOgWxs7Ci6k9I4HTxdTFjmia6lTbtteAuz+Q9v1hEOHjKeG7AtK4QJNHIPubfziX3SChg8DdruZsPRBJBq8ClzL0RB4mLd+9UuqK8fR0FBYqPdOUMtqmk0HJy84BW1g+dgUnOXAitmiNWGEIk6lb6nZNfH/gxw7NlXhOWIyblUXo+oxxZD26QHK12sgnWN/YM0AjFN6dKv+NnjJzDYQwnK3usT6UjfSvJ9iujZe0MKr0Fh8eajngAdBmeqlIAVSb0hluiZ8+qW4+igdVYgU0D6gNWD4k181WjcS+JYBKqnDOK//E0tTGf6i+olRlMmW4Eu4psBPiag0UePq0D1Of25aOKbsmUq2Rysz0RGQTVXjv0hVNY1yG7w5cBJMO7O9Un4U5D6sFrkiv8cXUDVL8aM8ojBbsZo6i+LfeHwdfBxOquRlqAX9CPkRIDSQ2X+pJSHOJ0ugXVvPlaLkV2le0lDy3CA0ZiLC8pI+wEIz0K9hRdroOzp/xH7SGVJvOE6gGNxGUQKnaVjbf8xDHjXZTy8RW/kG2Oh7V tDIBYDwf LHkQKWoBG5WbV5sjhFp1tjctWwl1LpgzAuuGAVOhQyjQtQjiVIBrM61st9/u1DrBKNCofV9FzMMV2s1OFjzP/UCqXuE7GzyYajApTH4gdRkpFfo8NaQX1M79sUx6GnU7C7OHcfmb4zJE+N6nIJN1mTqL//gfrwPTOo43PCuB6hwjQxyPdkCCS9wWHIBzPrAuOAG5jfs1vlrV5btf+l5ZP+M3WRyXCBkxzZ/9vlH77Du9Jw0c0DRYhsThIWL1sMgrFDTCAihb42ke/2va3JN3Quk1rZHyMSqMH2yWkC1HerGl3976nBCn6fQo3Bsxx4OHlfsRUDiPPWzPd9ZGzhRpIN1vzXzJRM9EElDxybD6g8kWpw6g0wYLwBuNaqAfNHqykCDkfYteOk7kFmqw= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Wed, Aug 09, 2023 at 08:42:58AM +0100, Conor Dooley wrote: > On Tue, Aug 08, 2023 at 06:51:06PM -0700, Charlie Jenkins wrote: > > Make sv48 the default address space for mmap as some applications > > currently depend on this assumption. Users can now select a > > desired address space using a non-zero hint address to mmap. Previously, > > requesting the default address space from mmap by passing zero as the hint > > address would result in using the largest address space possible. Some > > applications depend on empty bits in the virtual address space, like Go and > > Java, so this patch provides more flexibility for application developers. > > This still does not build: > ../fs/binfmt_flat.c:900:30: error: call to undeclared function 'is_compat_task'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] > > Reproduceable with allmodconfig. > There is some weird interaction with compat.h. Moving the definitions in pgtable.h into the #ifndef __ASSEMBLY__ guarded section resolves the compile error. I will send out another version with this change. -Charlie