xref: /aosp_15_r20/external/pciutils/lib/i386-io-sunos.h (revision c2e0c6b56a71da9abe8df5c8348fb3eb5c2c9251) 
1 /*
2  *	The PCI Library -- Access to i386 I/O ports on Solaris
3  *
4  *	Copyright (c) 2003 Bill Moore <[email protected]>
5  *	Copyright (c) 2003--2006 Martin Mares <[email protected]>
6  *
7  *	Can be freely distributed and used under the terms of the GNU GPL v2+
8  *
9  *	SPDX-License-Identifier: GPL-2.0-or-later
10  */
11 
12 #include <sys/sysi86.h>
13 #include <sys/psw.h>
14 
15 #include "i386-io-access.h"
16 
17 static int
intel_setup_io(struct pci_access * a UNUSED)18 intel_setup_io(struct pci_access *a UNUSED)
19 {
20   return (sysi86(SI86V86, V86SC_IOPL, PS_IOPL) < 0) ? 0 : 1;
21 }
22 
23 static inline void
intel_cleanup_io(struct pci_access * a UNUSED)24 intel_cleanup_io(struct pci_access *a UNUSED)
25 {
26   sysi86(SI86V86, V86SC_IOPL, 0);
27 }
28 
intel_io_lock(void)29 static inline void intel_io_lock(void)
30 {
31 }
32 
intel_io_unlock(void)33 static inline void intel_io_unlock(void)
34 {
35 }
36