diff options
| -rw-r--r-- | i386/Makefrag.am | 1 | ||||
| -rw-r--r-- | i386/i386at/conf.c | 10 | ||||
| -rw-r--r-- | i386/i386at/mem.c | 47 |
3 files changed, 58 insertions, 0 deletions
diff --git a/i386/Makefrag.am b/i386/Makefrag.am index 876761c..b2bad86 100644 --- a/i386/Makefrag.am +++ b/i386/Makefrag.am @@ -46,6 +46,7 @@ libkernel_a_SOURCES += \ i386/i386at/kd_mouse.h \ i386/i386at/kdasm.S \ i386/i386at/kdsoft.h \ + i386/i386at/mem.c \ i386/i386at/pic_isa.c \ i386/i386at/rtc.c \ i386/i386at/rtc.h diff --git a/i386/i386at/conf.c b/i386/i386at/conf.c index f5ab36c..d51b5ee 100644 --- a/i386/i386at/conf.c +++ b/i386/i386at/conf.c @@ -60,6 +60,9 @@ extern int kbdgetstat(), kbdsetstat(); #ifndef MACH_HYP extern int mouseopen(), mouseclose(), mouseread(), mousegetstat(); #define mousename "mouse" + +extern vm_offset_t memmmap(); +#define memname "mem" #endif /* MACH_HYP */ extern int kmsgopen(), kmsgclose(), kmsgread(), kmsggetstat(); @@ -127,6 +130,13 @@ struct dev_ops dev_name_list[] = nodev, nulldev, nulldev, 0, nodev }, +#ifndef MACH_HYP + { memname, nulldev, nulldev, nodev, + nodev, nodev, nodev, memmmap, + nodev, nulldev, nulldev, 0, + nodev }, +#endif /* MACH_HYP */ + #ifdef MACH_KMSG { kmsgname, kmsgopen, kmsgclose, kmsgread, nodev, kmsggetstat, nodev, nomap, diff --git a/i386/i386at/mem.c b/i386/i386at/mem.c new file mode 100644 index 0000000..5e51676 --- /dev/null +++ b/i386/i386at/mem.c @@ -0,0 +1,47 @@ +/* + * Mach Operating System + * Copyright (c) 1991,1990,1989 Carnegie Mellon University + * All Rights Reserved. + * + * Permission to use, copy, modify and distribute this software and its + * documentation is hereby granted, provided that both the copyright + * notice and this permission notice appear in all copies of the + * software, derivative works or modified versions, and any portions + * thereof, and that both notices appear in supporting documentation. + * + * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" + * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR + * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * Carnegie Mellon requests users of this software to return to + * + * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU + * School of Computer Science + * Carnegie Mellon University + * Pittsburgh PA 15213-3890 + * + * any improvements or extensions that they make and grant Carnegie Mellon + * the rights to redistribute these changes. + */ + +#include <device/io_req.h> +#include <i386/model_dep.h> + +/* This provides access to any memory that is not main RAM */ + +/*ARGSUSED*/ +int +memmmap(dev, off, prot) +int dev; +vm_offset_t off; +vm_prot_t prot; +{ + if (off == 0) + return 0; + else if (off < 0xa0000) + return -1; + else if (off >= 0x100000 && off < phys_last_addr) + return -1; + else + return i386_btop(off); +} |