From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from az33egw02.freescale.net (az33egw02.freescale.net [192.88.158.103]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "az33egw02.freescale.net", Issuer "Thawte Premium Server CA" (verified OK)) by ozlabs.org (Postfix) with ESMTPS id 3D08BB7080 for ; Thu, 22 Apr 2010 17:55:08 +1000 (EST) Received: from de01smr01.freescale.net (de01smr01.freescale.net [10.208.0.31]) by az33egw02.freescale.net (8.14.3/az33egw02) with ESMTP id o3M7soau007581 for ; Thu, 22 Apr 2010 00:55:00 -0700 (MST) Received: from zch01exm26.fsl.freescale.net (zch01exm26.ap.freescale.net [10.192.129.221]) by de01smr01.freescale.net (8.13.1/8.13.0) with ESMTP id o3M843rl009129 for ; Thu, 22 Apr 2010 03:04:07 -0500 (CDT) From: Li Yang To: galak@kernel.crashing.org, linuxppc-dev@lists.ozlabs.org Subject: [PATCH v3 3/5] fsl_msi: enable msi sharing through AMP OSes Date: Thu, 22 Apr 2010 16:31:37 +0800 Message-Id: <1271925099-29100-3-git-send-email-leoli@freescale.com> In-Reply-To: <1271925099-29100-2-git-send-email-leoli@freescale.com> References: <1271925099-29100-1-git-send-email-leoli@freescale.com> <1271925099-29100-2-git-send-email-leoli@freescale.com> Cc: Zhao Chenhui List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Make a single PCIe MSI bank shareable through CAMP OSes. The number of MSI used by each core can be configured by dts file. Signed-off-by: Zhao Chenhui Signed-off-by: Li Yang --- arch/powerpc/sysdev/fsl_msi.c | 8 +++++++- 1 files changed, 7 insertions(+), 1 deletions(-) diff --git a/arch/powerpc/sysdev/fsl_msi.c b/arch/powerpc/sysdev/fsl_msi.c index b7ea19a..7c442e2 100644 --- a/arch/powerpc/sysdev/fsl_msi.c +++ b/arch/powerpc/sysdev/fsl_msi.c @@ -260,6 +260,8 @@ static int __devinit fsl_of_msi_probe(struct of_device *dev, const u32 *p; struct fsl_msi_feature *features = match->data; struct fsl_msi_cascade_data *cascade_data = NULL; + int len; + u32 offset; printk(KERN_DEBUG "Setting up Freescale MSI support\n"); @@ -319,6 +321,10 @@ static int __devinit fsl_of_msi_probe(struct of_device *dev, err = -EINVAL; goto error_out; } + offset = 0; + p = of_get_property(dev->node, "msi-available-ranges", &len); + if (p) + offset = *p / IRQS_PER_MSI_REG; count /= sizeof(u32); for (i = 0; i < count / 2; i++) { @@ -335,7 +341,7 @@ static int __devinit fsl_of_msi_probe(struct of_device *dev, err = -ENOMEM; goto error_out; } - cascade_data->index = i; + cascade_data->index = i + offset; cascade_data->msi_data = msi; set_irq_data(virt_msir, (void *)cascade_data); set_irq_chained_handler(virt_msir, fsl_msi_cascade); -- 1.6.6-rc1.GIT