From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751086AbaCGFA2 (ORCPT ); Fri, 7 Mar 2014 00:00:28 -0500 Received: from tx2ehsobe004.messaging.microsoft.com ([65.55.88.14]:2119 "EHLO tx2outboundpool.messaging.microsoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751674AbaCGE6d (ORCPT ); Thu, 6 Mar 2014 23:58:33 -0500 X-Forefront-Antispam-Report: CIP:70.37.183.190;KIP:(null);UIP:(null);IPV:NLI;H:mail.freescale.net;RD:none;EFVD:NLI X-SpamScore: 0 X-BigFish: VS0(zzzz1f42h2148h208ch1ee6h1de0h1fdah2073h2146h1202h1e76h2189h1d1ah1d2ah21bch1fc6hzz1de098h8275bh1de097hz2dh2a8h839hd24he5bhf0ah1288h12a5h12a9h12bdh12e5h1354h137ah139eh13b6h1441h1504h1537h162dh1631h1758h1898h18e1h1946h19b5h1ad9h1b0ah1b2fh2222h224fh1fb3h1d0ch1d2eh1d3fh1dfeh1dffh1e23h1fe8h1ff5h2218h2216h226dh22d0h24afh2327h2336h2438h2461h2487h24d7h2516h2545h255eh25cch25f6h2605h1155h) From: Chenhui Zhao To: CC: , , , Subject: [PATCH 5/9] powerpc/85xx: disable irq by hardware when suspend for 64-bit Date: Fri, 7 Mar 2014 12:58:01 +0800 Message-ID: <1394168285-32275-5-git-send-email-chenhui.zhao@freescale.com> X-Mailer: git-send-email 1.7.3 In-Reply-To: <1394168285-32275-1-git-send-email-chenhui.zhao@freescale.com> References: <1394168285-32275-1-git-send-email-chenhui.zhao@freescale.com> MIME-Version: 1.0 Content-Type: text/plain X-OriginatorOrg: freescale.com X-FOPE-CONNECTOR: Id%0$Dn%*$RO%0$TLS%0$FQDN%$TlsDn% X-FOPE-CONNECTOR: Id%0$Dn%FREESCALE.MAIL.ONMICROSOFT.COM$RO%1$TLS%0$FQDN%$TlsDn% Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In 64-bit mode, kernel just clears the irq soft-enable flag in struct paca_struct to disable external irqs. But, in the case of suspend, irqs should be disabled by hardware. Therefore, hook a function to ppc_md.suspend_disable_irqs to really disable irqs. Signed-off-by: Chenhui Zhao --- arch/powerpc/platforms/85xx/corenet_generic.c | 12 ++++++++++++ 1 files changed, 12 insertions(+), 0 deletions(-) diff --git a/arch/powerpc/platforms/85xx/corenet_generic.c b/arch/powerpc/platforms/85xx/corenet_generic.c index 3fdf9f3..983d81f 100644 --- a/arch/powerpc/platforms/85xx/corenet_generic.c +++ b/arch/powerpc/platforms/85xx/corenet_generic.c @@ -32,6 +32,13 @@ #include #include "smp.h" +#if defined(CONFIG_PPC64) && defined(CONFIG_SUSPEND) +static void fsl_suspend_disable_irqs(void) +{ + __hard_irq_disable(); +} +#endif + void __init corenet_gen_pic_init(void) { struct mpic *mpic; @@ -58,6 +65,11 @@ void __init corenet_gen_setup_arch(void) fsl_rcpm_init(); +#if defined(CONFIG_PPC64) && defined(CONFIG_SUSPEND) + /* physically disable irq for 64-bit mode when suspend */ + ppc_md.suspend_disable_irqs = fsl_suspend_disable_irqs; +#endif + pr_info("%s board from Freescale Semiconductor\n", ppc_md.name); } -- 1.7.3