From patchwork Fri Sep 30 08:27:05 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Ellerman X-Patchwork-Id: 1684767 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org (client-ip=2404:9400:2:0:216:3eff:fee1:b9f1; helo=lists.ozlabs.org; envelope-from=linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=ellerman.id.au header.i=@ellerman.id.au header.a=rsa-sha256 header.s=201909 header.b=h4VGq4St; dkim-atps=neutral Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2404:9400:2:0:216:3eff:fee1:b9f1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-384)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4Mf3MB5LtGz1ypH for ; Fri, 30 Sep 2022 18:30:14 +1000 (AEST) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4Mf3MB4W3bz3f44 for ; Fri, 30 Sep 2022 18:30:14 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=ellerman.id.au header.i=@ellerman.id.au header.a=rsa-sha256 header.s=201909 header.b=h4VGq4St; dkim-atps=neutral X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Received: from gandalf.ozlabs.org (gandalf.ozlabs.org [150.107.74.76]) (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 4Mf3K9235zz3c3J for ; Fri, 30 Sep 2022 18:28:29 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=ellerman.id.au header.i=@ellerman.id.au header.a=rsa-sha256 header.s=201909 header.b=h4VGq4St; dkim-atps=neutral Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mail.ozlabs.org (Postfix) with ESMTPSA id 4Mf3K770lZz4xGh; Fri, 30 Sep 2022 18:28:27 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ellerman.id.au; s=201909; t=1664526508; bh=njHxK6JyfZ3lHpvVGGzGeJpSvLShX9p77KBJgM5JzU0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=h4VGq4StKm0F4FgC5xEzlFvDzgvw07Ob517rwlcKCGG5MO3K+Q0agfVWqkwk794cE Wg//PaUrJOEnAkOJXKRl699H7JVTqo4htddFSl+kylcIa0D1+bdhPwu7lTVkwpimQn GFnxMU+5nwyqUUJ73B6OToxf4pC4UQKkbdYYzPO7UI31JfyvzhtpHMga779QAzI7v0 fA2O3SO58aBCiS6jLdWD4gl66xQjB0i2JcmLCQVhYl2pDAl+Ix/+bqklmUM5q8zUga acJAB0ehlDrnSGc42fJXxo0jOkmtK2Gv1SfaR+zivP/PIjzxfsEcBpQKmxnPo0LI/N RUbfJcecL3qyA== From: Michael Ellerman To: Subject: [PATCH v3 2/6] powerpc: Add PVR & CPU name to hardware description Date: Fri, 30 Sep 2022 18:27:05 +1000 Message-Id: <20220930082709.55830-2-mpe@ellerman.id.au> X-Mailer: git-send-email 2.37.3 In-Reply-To: <20220930082709.55830-1-mpe@ellerman.id.au> References: <20220930082709.55830-1-mpe@ellerman.id.au> 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: nathanl@linux.ibm.com Errors-To: linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" Add the PVR and CPU name to the hardware description, which is printed at boot and in case of an oops. eg: Hardware name: ... POWER8E (raw) 0x4b0201 Signed-off-by: Michael Ellerman --- arch/powerpc/kernel/prom.c | 4 ++++ 1 file changed, 4 insertions(+) v3: Drop "cpu:" and "pvr:" tags for brevity. diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c index 2e7a04dab2f7..09f07cc57216 100644 --- a/arch/powerpc/kernel/prom.c +++ b/arch/powerpc/kernel/prom.c @@ -30,6 +30,7 @@ #include #include #include +#include #include #include @@ -819,6 +820,9 @@ void __init early_init_devtree(void *params) dt_cpu_ftrs_scan(); + // We can now add the CPU name & PVR to the hardware description + seq_buf_printf(&ppc_hw_desc, "%s 0x%04lx ", cur_cpu_spec->cpu_name, mfspr(SPRN_PVR)); + /* Retrieve CPU related informations from the flat tree * (altivec support, boot CPU ID, ...) */