From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- .../platform/intel-mid/device_libs/platform_msic.c | 87 ++++++++++++++++++++++ 1 file changed, 87 insertions(+) create mode 100644 kernel/arch/x86/platform/intel-mid/device_libs/platform_msic.c (limited to 'kernel/arch/x86/platform/intel-mid/device_libs/platform_msic.c') diff --git a/kernel/arch/x86/platform/intel-mid/device_libs/platform_msic.c b/kernel/arch/x86/platform/intel-mid/device_libs/platform_msic.c new file mode 100644 index 000000000..9f4a775a6 --- /dev/null +++ b/kernel/arch/x86/platform/intel-mid/device_libs/platform_msic.c @@ -0,0 +1,87 @@ +/* + * platform_msic.c: MSIC platform data initilization file + * + * (C) Copyright 2013 Intel Corporation + * Author: Sathyanarayanan Kuppuswamy + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; version 2 + * of the License. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include "platform_msic.h" + +struct intel_msic_platform_data msic_pdata; + +static struct resource msic_resources[] = { + { + .start = INTEL_MSIC_IRQ_PHYS_BASE, + .end = INTEL_MSIC_IRQ_PHYS_BASE + 64 - 1, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device msic_device = { + .name = "intel_msic", + .id = -1, + .dev = { + .platform_data = &msic_pdata, + }, + .num_resources = ARRAY_SIZE(msic_resources), + .resource = msic_resources, +}; + +static int msic_scu_status_change(struct notifier_block *nb, + unsigned long code, void *data) +{ + if (code == SCU_DOWN) { + platform_device_unregister(&msic_device); + return 0; + } + + return platform_device_register(&msic_device); +} + +static int __init msic_init(void) +{ + static struct notifier_block msic_scu_notifier = { + .notifier_call = msic_scu_status_change, + }; + + /* + * We need to be sure that the SCU IPC is ready before MSIC device + * can be registered. + */ + if (intel_mid_has_msic()) + intel_scu_notifier_add(&msic_scu_notifier); + + return 0; +} +arch_initcall(msic_init); + +/* + * msic_generic_platform_data - sets generic platform data for the block + * @info: pointer to the SFI device table entry for this block + * @block: MSIC block + * + * Function sets IRQ number from the SFI table entry for given device to + * the MSIC platform data. + */ +void *msic_generic_platform_data(void *info, enum intel_msic_block block) +{ + struct sfi_device_table_entry *entry = info; + + BUG_ON(block < 0 || block >= INTEL_MSIC_BLOCK_LAST); + msic_pdata.irq[block] = entry->irq; + + return NULL; +} -- cgit 1.2.3-korg