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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5DBD8C6FD1D for ; Wed, 15 Mar 2023 03:05:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:To:From:Cc:MIME-Version:References: In-Reply-To:Message-Id:Date:Subject:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=AMTltDKh9Chty8ewnxFLa2G9JzNipkcyHDbHCbyjCk4=; b=cUqhTZgv1qr7dp gltuYm6K2hG6n9+teIo2oDLpmSRIIzt2W/+peMtfie692RqhN11BbP/ArSCTl/9ILiB9qJQSuB2ja p4LwDQjrKyrRl20khuG+Bq5zTProYSDGmZqXSSww36RKvS6KuFdBek8hdKhw7AxViyZUBugr3ohPv 9HMd59vUl8Kw+GDxNpLGMcUM6WehMqvS1fBiJVQQ20Z/fkBjjabrQQZpG/QPlmIB1xzqfqqkmbBsp MczAI+IlW39UFv/cswDIm2qtdG3iMJEs+F9MkailE18VI0P9Kb9L8lxg/8ntdy/wrIY0HZCOLZboP bbbIOzOjktUFfFHmtrCg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pcHSP-00C6nO-22; Wed, 15 Mar 2023 03:05:41 +0000 Received: from mail-pj1-x102d.google.com ([2607:f8b0:4864:20::102d]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pcHSD-00C6hA-0t for linux-riscv@lists.infradead.org; Wed, 15 Mar 2023 03:05:33 +0000 Received: by mail-pj1-x102d.google.com with SMTP id f6-20020a17090ac28600b0023b9bf9eb63so458971pjt.5 for ; Tue, 14 Mar 2023 20:05:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rivosinc-com.20210112.gappssmtp.com; s=20210112; t=1678849529; h=to:from:cc:content-transfer-encoding:mime-version:references :in-reply-to:message-id:date:subject:from:to:cc:subject:date :message-id:reply-to; bh=kjXs6Q9el+E3DjFj75yzzOPO7Ucq3PFGsjms6Llyx9A=; b=mRz3PKHV4IBxR+2dOFKG5hwZul2ABonaRfC7Ehdx0OfdaJc8X1QKmjbUc3A/sMtQmb gbdDUmN6C0xqiSSvVk7V6RYl7rj70SnASOVED2xToUNivvfAXHpYOvdfNg9PNLDBWyDp IncEoQPsAhVH27iWxXjZiY9+MPHJp6iXyumIDVQgIFvnpqQ2awg+ak4Y4xvxSFjC0zod 3dJQKPZ3iUEBFf1zv/1bEdn3ErqHsi/M0WCTCcYx6qxBUNzn+biRBb8C3pLH8Kmj08p4 BzamwZHJuVc6k1iXhWSR7eCcnQcS6MM7x9tkiaPkVq0c4rPipsvwrOOR87W+SmOuO7ef mW4g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1678849529; h=to:from:cc:content-transfer-encoding:mime-version:references :in-reply-to:message-id:date:subject:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=kjXs6Q9el+E3DjFj75yzzOPO7Ucq3PFGsjms6Llyx9A=; b=KTcHXra1FiJ3UAbV+z9jQ9AT+SQdfAkikjvuX8t8HBspU0gd/1LZ30d/E2ENpcKA3e Dkd1JA9dQiUmXU1DpU62EDzArdktntbiykZVurJe0wgOoCYqJFme3A1Rerfmf0lz8Sb2 2Ncd9kXh0IKR/TcohdqI0Y/bLElrZSDNKOnBdJDezSfBbZA8c45/td2JWzsrTQfWwHhT 3SrAGlPp7M0zIk3u8ikzA6hpVx8tQze+qzxzrU/ER8ngRuHcGM16JKaA9bac7y4PdCTC wNeUi+8n5WhaYuI4Db8yVMguz+vJcjkhdgRzfl5uOadvBWXJyIRfXkr7OB4tpyf74UdA k8LQ== X-Gm-Message-State: AO0yUKUGMev3AXB2YMwAPFJ6UVTXrkATV35+LZuU5zT5KBby23E3rVHc nnPVmITF3O9Tv1Cv2eId6WhH8Q== X-Google-Smtp-Source: AK7set8aNlVZNOCixnv/wCzZZa//jnHG6FrTV/mi2NGNpxsUbRVCAmKzBlXv1PxwH+TLgm6P1rGJNQ== X-Received: by 2002:a17:903:48d:b0:19e:e39b:6d98 with SMTP id jj13-20020a170903048d00b0019ee39b6d98mr981507plb.35.1678849528720; Tue, 14 Mar 2023 20:05:28 -0700 (PDT) Received: from localhost ([50.221.140.188]) by smtp.gmail.com with ESMTPSA id jz12-20020a170903430c00b0019f2cee9221sm2447268plb.95.2023.03.14.20.05.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 14 Mar 2023 20:05:28 -0700 (PDT) Subject: [PATCH v2 3/6] mm: Add VM_FAULT_ARCH_* codes Date: Tue, 14 Mar 2023 20:03:56 -0700 Message-Id: <20230315030359.14162-4-palmer@rivosinc.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230315030359.14162-1-palmer@rivosinc.com> References: <20230315030359.14162-1-palmer@rivosinc.com> MIME-Version: 1.0 Cc: linux-mm@kvack.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Palmer Dabbelt From: Palmer Dabbelt To: akpm@linux-foundation.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230314_200529_565383_2D74F5B3 X-CRM114-Status: GOOD ( 11.00 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org A handful of architectures (arm, s390, and soon RISC-V) define their own internal fault codes, so instead dedicate a few standard codes as being architecture-specific to avoid conflicts. Signed-off-by: Palmer Dabbelt --- include/linux/mm_types.h | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index fd9b863869b4..47f36a2fdaac 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -938,6 +938,7 @@ typedef __bitwise unsigned int vm_fault_t; * in DAX) * @VM_FAULT_COMPLETED: ->fault completed, meanwhile mmap lock released * @VM_FAULT_HINDEX_MASK: mask HINDEX value + * @VM_FAULT_ARCH_* Architecture-specific VM fault codes. * */ enum vm_fault_reason { @@ -955,6 +956,11 @@ enum vm_fault_reason { VM_FAULT_NEEDDSYNC = (__force vm_fault_t)0x0002000, VM_FAULT_COMPLETED = (__force vm_fault_t)0x0004000, VM_FAULT_HINDEX_MASK = (__force vm_fault_t)0x00f0000, + VM_FAULT_ARCH_0 = (__force vm_fault_t)0x0100000, + VM_FAULT_ARCH_1 = (__force vm_fault_t)0x0200000, + VM_FAULT_ARCH_2 = (__force vm_fault_t)0x0400000, + VM_FAULT_ARCH_3 = (__force vm_fault_t)0x0800000, + VM_FAULT_ARCH_4 = (__force vm_fault_t)0x1000000, }; /* Encode hstate index for a hwpoisoned large page */ @@ -977,7 +983,12 @@ enum vm_fault_reason { { VM_FAULT_RETRY, "RETRY" }, \ { VM_FAULT_FALLBACK, "FALLBACK" }, \ { VM_FAULT_DONE_COW, "DONE_COW" }, \ - { VM_FAULT_NEEDDSYNC, "NEEDDSYNC" } + { VM_FAULT_NEEDDSYNC, "NEEDDSYNC" }, \ + { VM_FAULT_ARCH_0, "ARCH_0" }, \ + { VM_FAULT_ARCH_1, "ARCH_1" }, \ + { VM_FAULT_ARCH_2, "ARCH_2" }, \ + { VM_FAULT_ARCH_3, "ARCH_3" }, \ + { VM_FAULT_ARCH_4, "ARCH_4" }, \ struct vm_special_mapping { const char *name; /* The name, e.g. "[vdso]". */ -- 2.39.2 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv