From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030362Ab2CUVlL (ORCPT ); Wed, 21 Mar 2012 17:41:11 -0400 Received: from e3.ny.us.ibm.com ([32.97.182.143]:52965 "EHLO e3.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965027Ab2CUVlH (ORCPT ); Wed, 21 Mar 2012 17:41:07 -0400 Message-ID: <1332366111.3858.56.camel@key-ThinkPad-W510> Subject: [PATCH 17/17] powerpc: crypto: enable the PFO-based encryption device From: Kent Yoder To: linux-kernel@vger.kernel.org Cc: linux-crypto@vger.kernel.org, rcj@linux.vnet.ibm.com, benh@kernel.crashing.org, linuxppc-dev@lists.ozlabs.org Date: Wed, 21 Mar 2012 16:41:51 -0500 In-Reply-To: <1332365297.3858.5.camel@key-ThinkPad-W510> References: <1332365297.3858.5.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: 12032121-8974-0000-0000-000007793A87 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 encryption accelerator device. The nx device driver provides support for this hardware feature. 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 6691077..fb5412e 100644 --- a/arch/powerpc/kernel/prom_init.c +++ b/arch/powerpc/kernel/prom_init.c @@ -716,6 +716,12 @@ static void __init early_cmdline_parse(void) #else #define OV5_PFO_HW_RNG 0x00 #endif +#if defined(CONFIG_CRYPTO_DEV_NX) || \ + defined(CONFIG_CRYPTO_DEV_NX_MODULE) +#define OV5_PFO_HW_ENCR 0x20 +#else +#define OV5_PFO_HW_ENCR 0x00 +#endif /* Option Vector 6: IBM PAPR hints */ #define OV6_LINUX 0x02 /* Linux is our OS */ @@ -783,7 +789,7 @@ static unsigned char ibm_architecture_vec[] = { 0, 0, 0, - OV5_PFO_HW_RNG, + OV5_PFO_HW_RNG | OV5_PFO_HW_ENCR, /* option vector 6: IBM PAPR hints */ 4 - 2, /* length */ -- 1.7.1