From: Kent Yoder Subject: [PATCH 17/17] powerpc: crypto: enable the PFO-based encryption device Date: Wed, 21 Mar 2012 16:41:51 -0500 Message-ID: <1332366111.3858.56.camel@key-ThinkPad-W510> References: <1332365297.3858.5.camel@key-ThinkPad-W510> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: linux-crypto@vger.kernel.org, rcj@linux.vnet.ibm.com, benh@kernel.crashing.org, linuxppc-dev@lists.ozlabs.org To: linux-kernel@vger.kernel.org Return-path: Received: from e3.ny.us.ibm.com ([32.97.182.143]:52960 "EHLO e3.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965001Ab2CUVlG (ORCPT ); Wed, 21 Mar 2012 17:41:06 -0400 Received: from /spool/local by e3.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 21 Mar 2012 17:41:06 -0400 In-Reply-To: <1332365297.3858.5.camel@key-ThinkPad-W510> Sender: linux-crypto-owner@vger.kernel.org List-ID: 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