mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 06:55:07 +07:00
82c73e0a38
Based on 1 normalized pattern(s): this file is licensed under the gpl v2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 3 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Armijn Hemel <armijn@tjaldur.nl> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190602204654.634736654@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
25 lines
455 B
C
25 lines
455 B
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* EISA specific code
|
|
*/
|
|
#include <linux/ioport.h>
|
|
#include <linux/eisa.h>
|
|
#include <linux/io.h>
|
|
|
|
#include <xen/xen.h>
|
|
|
|
static __init int eisa_bus_probe(void)
|
|
{
|
|
void __iomem *p;
|
|
|
|
if (xen_pv_domain() && !xen_initial_domain())
|
|
return 0;
|
|
|
|
p = ioremap(0x0FFFD9, 4);
|
|
if (p && readl(p) == 'E' + ('I' << 8) + ('S' << 16) + ('A' << 24))
|
|
EISA_bus = 1;
|
|
iounmap(p);
|
|
return 0;
|
|
}
|
|
subsys_initcall(eisa_bus_probe);
|