From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759074Ab2DJPIT (ORCPT ); Tue, 10 Apr 2012 11:08:19 -0400 Received: from e9.ny.us.ibm.com ([32.97.182.139]:38378 "EHLO e9.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759057Ab2DJPIQ (ORCPT ); Tue, 10 Apr 2012 11:08:16 -0400 Message-ID: <1334070539.16827.11.camel@key-ThinkPad-W510> Subject: [PATCH v2 05/17] pseries: Enabled the PFO-based RNG accelerator From: Kent Yoder To: linux-kernel@vger.kernel.org Cc: linux-crypto@vger.kernel.org, rcj@linux.vnet.ibm.com, key@linux.vnet.ibm.com, benh@kernel.crashing.org, linuxppc-dev@lists.ozlabs.org Date: Tue, 10 Apr 2012 10:08:59 -0500 In-Reply-To: <1334070249.16827.1.camel@key-ThinkPad-W510> References: <1334070249.16827.1.camel@key-ThinkPad-W510> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.2- Content-Transfer-Encoding: 7bit Mime-Version: 1.0 X-Content-Scanned: Fidelis XPS MAILER x-cbid: 12041015-7182-0000-0000-000001385FE6 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch adds the cas bits to advertise support for the Platform Facilities Option (PFO) based random number generator accerator. The pseries-rng driver provides support for this hardware feature. Signed-off-by: Robert Jennings Signed-off-by: Kent Yoder --- arch/powerpc/kernel/prom_init.c | 8 +++++++- 1 files changed, 7 insertions(+), 1 deletions(-) diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c index 9986027..26f6317 100644 --- a/arch/powerpc/kernel/prom_init.c +++ b/arch/powerpc/kernel/prom_init.c @@ -701,6 +701,7 @@ static void __init early_cmdline_parse(void) #define OV5_XCMO 0x00 #endif #define OV5_TYPE1_AFFINITY 0x80 /* Type 1 NUMA affinity */ +#define OV5_PFO_HW_RNG 0x80 /* PFO Random Number Generator */ /* Option Vector 6: IBM PAPR hints */ #define OV6_LINUX 0x02 /* Linux is our OS */ @@ -748,7 +749,7 @@ static unsigned char ibm_architecture_vec[] = { 0, /* don't halt */ /* option vector 5: PAPR/OF options */ - 13 - 2, /* length */ + 18 - 2, /* length */ 0, /* don't ignore, don't halt */ OV5_LPAR | OV5_SPLPAR | OV5_LARGE_PAGES | OV5_DRCONF_MEMORY | OV5_DONATE_DEDICATE_CPU | OV5_MSI, @@ -764,6 +765,11 @@ static unsigned char ibm_architecture_vec[] = { */ #define IBM_ARCH_VEC_NRCORES_OFFSET 100 W(NR_CPUS), /* number of cores supported */ + 0, + 0, + 0, + 0, + OV5_PFO_HW_RNG, /* option vector 6: IBM PAPR hints */ 4 - 2, /* length */ -- 1.7.1