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 X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CC090C4360C for ; Fri, 4 Oct 2019 08:47:43 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 60BCC2084D for ; Fri, 4 Oct 2019 08:47:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="so29s6Mq" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 60BCC2084D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 46l3RK1CJ2zDqbD for ; Fri, 4 Oct 2019 18:47:41 +1000 (AEST) Authentication-Results: lists.ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=gmail.com (client-ip=2607:f8b0:4864:20::544; helo=mail-pg1-x544.google.com; envelope-from=oohall@gmail.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="so29s6Mq"; dkim-atps=neutral Received: from mail-pg1-x544.google.com (mail-pg1-x544.google.com [IPv6:2607:f8b0:4864:20::544]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 46l3Lw6SszzDqWH for ; Fri, 4 Oct 2019 18:43:52 +1000 (AEST) Received: by mail-pg1-x544.google.com with SMTP id x10so3374648pgi.5 for ; Fri, 04 Oct 2019 01:43:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=Z0o11s4aZYrLLEA48Sys9gTcMTLetu6gq0VnNDHxr4A=; b=so29s6MqLsLbWs/+27c16D8A7yQ8GKiaMuQtovmceE7xQyCsKZUgE1l6mjCMomVo1e zF5aWfNPTouELnSviR1xqh0zH0/ZoqWWinASbC+Wp33pO2DVXMByRZR4gyPVxHy4Pz+7 TS8KJcacjvqDr+GprZh+oxMkTjz+kMKsEOtwQKWWdAoQ8dbmkifdKLSre9h5isvx9BVx XeCIq3Q+uVal9trJKAmqB6WkJZ3XLUlRGu3Ux64AsuXSo/d5ZlbfjHJ4YPyVgTwOr279 mu1dLffczbf83QFA6JadbkxQw72kYv2bJ/J7OxaJGkejh7SDJYOnMrDjjscnpxwZVbJS 8UrQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=Z0o11s4aZYrLLEA48Sys9gTcMTLetu6gq0VnNDHxr4A=; b=JhOLYVgBccDAhbWLPPbZJ6cF6Zr/+ESTkE/bsAKG6LnsyFzBHgnLeFGv5S1fC3l4IC oJhcT9A7yv7mCC6yd8hibNri6N/7uiJGwCAQk+t3ReQwbL1jsWK/oepILgo3R/xstAtH 8+suW9cxMW+W9mKUjeiEUQf+t9VBY0wutPp+UpAeRosBmD9OQ5wvuxKH9si6JmdHzgFm 6QufQSZpnRHgnn0LYCX+CpRvDUOWcgODVffeMRQoz3cwuZ9NNAx1OaGo8JL3kkNcCeuk NIoIztQhONZxec/06+DnWqWK4/zmB1yKbYTGtrmDfWzj65B8DyX0uKZtpu2tgRkyFx0X 0nKA== X-Gm-Message-State: APjAAAVI3Hp/eeSzSdZPddNUdEbNPbwjrgbruXfAxLz4HfDlqfvPgP4a jy2h74insxIsfjEV20Ez7Nf9AlPZ X-Google-Smtp-Source: APXvYqxVrOsEUnrGFF01qom7crIsbYOBFanf4n+Q/UvaSl3wm1tG9IR31SjU0N0R6sVpEpfKZyfBVA== X-Received: by 2002:a17:90a:5886:: with SMTP id j6mr15125013pji.137.1570178629686; Fri, 04 Oct 2019 01:43:49 -0700 (PDT) Received: from wafer.ozlabs.ibm.com.ozlabs.ibm.com ([122.99.82.10]) by smtp.gmail.com with ESMTPSA id y138sm5110708pfb.174.2019.10.04.01.43.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 04 Oct 2019 01:43:49 -0700 (PDT) From: Oliver O'Halloran To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH 2/2] powerpc/powernv: Use common code for the symbol_map export Date: Fri, 4 Oct 2019 18:43:35 +1000 Message-Id: <20191004084335.16157-2-oohall@gmail.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20191004084335.16157-1-oohall@gmail.com> References: <20191004084335.16157-1-oohall@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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: Oliver O'Halloran Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Long before we had a generic way for firmware to export memory ranges of interest we added a special case for the skiboot symbol map. The code is pretty much identical to the generic export so re-use the code. Signed-off-by: Oliver O'Halloran --- arch/powerpc/platforms/powernv/opal.c | 47 +++++++---------------------------- 1 file changed, 9 insertions(+), 38 deletions(-) diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c index 0373da5..1ef26e2 100644 --- a/arch/powerpc/platforms/powernv/opal.c +++ b/arch/powerpc/platforms/powernv/opal.c @@ -708,42 +708,6 @@ static int opal_sysfs_init(void) return 0; } -static ssize_t symbol_map_read(struct file *fp, struct kobject *kobj, - struct bin_attribute *bin_attr, - char *buf, loff_t off, size_t count) -{ - return memory_read_from_buffer(buf, count, &off, bin_attr->private, - bin_attr->size); -} - -static struct bin_attribute symbol_map_attr = { - .attr = {.name = "symbol_map", .mode = 0400}, - .read = symbol_map_read -}; - -static void opal_export_symmap(void) -{ - const __be64 *syms; - unsigned int size; - struct device_node *fw; - int rc; - - fw = of_find_node_by_path("/ibm,opal/firmware"); - if (!fw) - return; - syms = of_get_property(fw, "symbol-map", &size); - if (!syms || size != 2 * sizeof(__be64)) - return; - - /* Setup attributes */ - symbol_map_attr.private = __va(be64_to_cpu(syms[0])); - symbol_map_attr.size = be64_to_cpu(syms[1]); - - rc = sysfs_create_bin_file(opal_kobj, &symbol_map_attr); - if (rc) - pr_warn("Error %d creating OPAL symbols file\n", rc); -} - static ssize_t export_attr_read(struct file *fp, struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count) @@ -846,6 +810,15 @@ static void opal_export_attrs(void) opal_add_exported_attrs(np, kobj); + /* + * NB: symbol_map existed before the generic export interface so it + * lives under the top level opal_kobj. + */ + rc = opal_add_one_export(opal_kobj, "symbol_map", + np->parent, "symbol-map"); + if (rc) + pr_warn("Error %d creating OPAL symbols file\n", rc); + of_node_put(np); } @@ -991,8 +964,6 @@ static int __init opal_init(void) /* Create "opal" kobject under /sys/firmware */ rc = opal_sysfs_init(); if (rc == 0) { - /* Export symbol map to userspace */ - opal_export_symmap(); /* Setup dump region interface */ opal_dump_region_init(); /* Setup error log interface */ -- 2.9.5