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 --- kernel/drivers/edac/edac_stub.c | 110 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 110 insertions(+) create mode 100644 kernel/drivers/edac/edac_stub.c (limited to 'kernel/drivers/edac/edac_stub.c') diff --git a/kernel/drivers/edac/edac_stub.c b/kernel/drivers/edac/edac_stub.c new file mode 100644 index 000000000..9d9e18aef --- /dev/null +++ b/kernel/drivers/edac/edac_stub.c @@ -0,0 +1,110 @@ +/* + * common EDAC components that must be in kernel + * + * Author: Dave Jiang + * + * 2007 (c) MontaVista Software, Inc. + * 2010 (c) Advanced Micro Devices Inc. + * Borislav Petkov + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + * + */ +#include +#include +#include +#include +#include + +int edac_op_state = EDAC_OPSTATE_INVAL; +EXPORT_SYMBOL_GPL(edac_op_state); + +atomic_t edac_handlers = ATOMIC_INIT(0); +EXPORT_SYMBOL_GPL(edac_handlers); + +int edac_err_assert = 0; +EXPORT_SYMBOL_GPL(edac_err_assert); + +static atomic_t edac_subsys_valid = ATOMIC_INIT(0); + +int edac_report_status = EDAC_REPORTING_ENABLED; +EXPORT_SYMBOL_GPL(edac_report_status); + +static int __init edac_report_setup(char *str) +{ + if (!str) + return -EINVAL; + + if (!strncmp(str, "on", 2)) + set_edac_report_status(EDAC_REPORTING_ENABLED); + else if (!strncmp(str, "off", 3)) + set_edac_report_status(EDAC_REPORTING_DISABLED); + else if (!strncmp(str, "force", 5)) + set_edac_report_status(EDAC_REPORTING_FORCE); + + return 0; +} +__setup("edac_report=", edac_report_setup); + +/* + * called to determine if there is an EDAC driver interested in + * knowing an event (such as NMI) occurred + */ +int edac_handler_set(void) +{ + if (edac_op_state == EDAC_OPSTATE_POLL) + return 0; + + return atomic_read(&edac_handlers); +} +EXPORT_SYMBOL_GPL(edac_handler_set); + +/* + * handler for NMI type of interrupts to assert error + */ +void edac_atomic_assert_error(void) +{ + edac_err_assert++; +} +EXPORT_SYMBOL_GPL(edac_atomic_assert_error); + +/* + * sysfs object: /sys/devices/system/edac + * need to export to other files + */ +struct bus_type edac_subsys = { + .name = "edac", + .dev_name = "edac", +}; +EXPORT_SYMBOL_GPL(edac_subsys); + +/* return pointer to the 'edac' node in sysfs */ +struct bus_type *edac_get_sysfs_subsys(void) +{ + int err = 0; + + if (atomic_read(&edac_subsys_valid)) + goto out; + + /* create the /sys/devices/system/edac directory */ + err = subsys_system_register(&edac_subsys, NULL); + if (err) { + printk(KERN_ERR "Error registering toplevel EDAC sysfs dir\n"); + return NULL; + } + +out: + atomic_inc(&edac_subsys_valid); + return &edac_subsys; +} +EXPORT_SYMBOL_GPL(edac_get_sysfs_subsys); + +void edac_put_sysfs_subsys(void) +{ + /* last user unregisters it */ + if (atomic_dec_and_test(&edac_subsys_valid)) + bus_unregister(&edac_subsys); +} +EXPORT_SYMBOL_GPL(edac_put_sysfs_subsys); -- cgit 1.2.3-korg