diff options
author | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
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committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/drivers/eisa/virtual_root.c | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
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 <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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 <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/drivers/eisa/virtual_root.c')
-rw-r--r-- | kernel/drivers/eisa/virtual_root.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/kernel/drivers/eisa/virtual_root.c b/kernel/drivers/eisa/virtual_root.c new file mode 100644 index 000000000..535e4f9c8 --- /dev/null +++ b/kernel/drivers/eisa/virtual_root.c @@ -0,0 +1,74 @@ +/* + * Virtual EISA root driver. + * Acts as a placeholder if we don't have a proper EISA bridge. + * + * (C) 2003 Marc Zyngier <maz@wild-wind.fr.eu.org> + * + * This code is released under the GPL version 2. + */ + +#include <linux/kernel.h> +#include <linux/platform_device.h> +#include <linux/eisa.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/init.h> + +#if defined(CONFIG_ALPHA_JENSEN) || defined(CONFIG_EISA_VLB_PRIMING) +#define EISA_FORCE_PROBE_DEFAULT 1 +#else +#define EISA_FORCE_PROBE_DEFAULT 0 +#endif + +static int force_probe = EISA_FORCE_PROBE_DEFAULT; +static void virtual_eisa_release (struct device *); + +/* The default EISA device parent (virtual root device). + * Now use a platform device, since that's the obvious choice. */ + +static struct platform_device eisa_root_dev = { + .name = "eisa", + .id = 0, + .dev = { + .release = virtual_eisa_release, + }, +}; + +static struct eisa_root_device eisa_bus_root = { + .dev = &eisa_root_dev.dev, + .bus_base_addr = 0, + .res = &ioport_resource, + .slots = EISA_MAX_SLOTS, + .dma_mask = 0xffffffff, +}; + +static void virtual_eisa_release (struct device *dev) +{ + /* nothing really to do here */ +} + +static int __init virtual_eisa_root_init (void) +{ + int r; + + if ((r = platform_device_register (&eisa_root_dev))) { + return r; + } + + eisa_bus_root.force_probe = force_probe; + + dev_set_drvdata(&eisa_root_dev.dev, &eisa_bus_root); + + if (eisa_root_register (&eisa_bus_root)) { + /* A real bridge may have been registered before + * us. So quietly unregister. */ + platform_device_unregister (&eisa_root_dev); + return -1; + } + + return 0; +} + +module_param (force_probe, int, 0444); + +device_initcall (virtual_eisa_root_init); |