diff options
Diffstat (limited to 'sys/pc98/pc98/pc98_machdep.c')
| -rw-r--r-- | sys/pc98/pc98/pc98_machdep.c | 194 |
1 files changed, 0 insertions, 194 deletions
diff --git a/sys/pc98/pc98/pc98_machdep.c b/sys/pc98/pc98/pc98_machdep.c index da383ad..8e481a3 100644 --- a/sys/pc98/pc98/pc98_machdep.c +++ b/sys/pc98/pc98/pc98_machdep.c @@ -192,197 +192,3 @@ void init_pc98_dmac(void) outb(0x29, (0x0c | 3)); /* Bank Mode Reg. 16M mode */ outb(0x11, 0x50); /* PC98 must be 0x40 */ } -/* - * Copyright (c) KATO Takenori, 1996. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer as - * the first lines of this file unmodified. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/vmmeter.h> - -#include <vm/vm.h> -#include <vm/vm_param.h> -#include <vm/vm_prot.h> -#include <vm/lock.h> -#include <vm/vm_kern.h> -#include <vm/vm_object.h> -#include <vm/vm_page.h> -#include <vm/vm_map.h> -#include <vm/vm_pager.h> -#include <vm/vm_extern.h> - -#include <pc98/pc98/pc98_device.h> - -extern int Maxmem; -extern int Maxmem_under16M; - -void init_cpu_accel_mem __P((void)); -void init_pc98_dmac __P((void)); - -#ifdef EPSON_MEMWIN -void init_epson_memwin __P((void)); - -void init_epson_memwin(void) -{ - if (pc98_machine_type & M_EPSON_PC98) { - if (Maxmem > 3840) { - if (Maxmem == Maxmem_under16M) { - Maxmem = 3840; - Maxmem_under16M = 3840; - } else if (Maxmem_under16M > 3840) { - Maxmem_under16M = 3840; - } - } - - /* Disable 15MB-16MB caching */ - switch (epson_machine_id) { - case 0x34: /* PC486HX */ - case 0x35: /* PC486HG */ - case 0x3B: /* PC486HA */ - /* Cache control start */ - outb(0x43f, 0x42); - outw(0xc40, 0x0033); - - /* Disable 0xF00000-0xFFFFFF */ - outb(0xc48, 0x49); outb(0xc4c, 0x00); - outb(0xc48, 0x48); outb(0xc4c, 0xf0); - outb(0xc48, 0x4d); outb(0xc4c, 0x00); - outb(0xc48, 0x4c); outb(0xc4c, 0xff); - outb(0xc48, 0x4f); outb(0xc4c, 0x00); - - /* Cache control end */ - outb(0x43f, 0x40); - break; - - case 0x2B: /* PC486GR/GF */ - case 0x30: /* PC486P */ - case 0x31: /* PC486GRSuper */ - case 0x32: /* PC486GR+ */ - case 0x37: /* PC486SE */ - case 0x38: /* PC486SR */ - /* Disable 0xF00000-0xFFFFFF */ - outb(0x43f, 0x42); - outb(0x467, 0xe0); - outb(0x567, 0xd8); - - outb(0x43f, 0x40); - outb(0x467, 0xe0); - outb(0x567, 0xe0); - break; - } - - /* Disable 15MB-16MB RAM and enable memory window */ - outb(0x43b, inb(0x43b) & 0xfd); /* clear bit1 */ - } -} -#endif - -void init_cpu_accel_mem(void) -{ - int target_page; - /* - * Certain 'CPU accelerator' supports over 16MB memory on - * the machines whose BIOS doesn't store true size. - * To support this, we don't trust BIOS values if Maxmem < 4096. - */ - if (Maxmem < 4096) { - for (target_page = ptoa(4096); /* 16MB */ - target_page < ptoa(32768); /* 128MB */ - target_page += 256 * PAGE_SIZE /* 1MB step */) { - int tmp, page_bad = FALSE, OrigMaxmem = Maxmem; - - *(int *)CMAP1 = PG_V | PG_RW | PG_N | target_page; - pmap_update(); - - tmp = *(int *)CADDR1; - /* - * Test for alternating 1's and 0's - */ - *(volatile int *)CADDR1 = 0xaaaaaaaa; - if (*(volatile int *)CADDR1 != 0xaaaaaaaa) { - page_bad = TRUE; - } - /* - * Test for alternating 0's and 1's - */ - *(volatile int *)CADDR1 = 0x55555555; - if (*(volatile int *)CADDR1 != 0x55555555) { - page_bad = TRUE; - } - /* - * Test for all 1's - */ - *(volatile int *)CADDR1 = 0xffffffff; - if (*(volatile int *)CADDR1 != 0xffffffff) { - page_bad = TRUE; - } - /* - * Test for all 0's - */ - *(volatile int *)CADDR1 = 0x0; - if (*(volatile int *)CADDR1 != 0x0) { - /* - * test of page failed - */ - page_bad = TRUE; - } - /* - * Restore original value. - */ - *(int *)CADDR1 = tmp; - if (page_bad == TRUE) { - if (target_page > ptoa(4096)) - Maxmem = atop(target_page); - else - Maxmem = OrigMaxmem; - - break; - } - } - *(int *)CMAP1 = 0; - pmap_update(); - - /* XXX */ - if (Maxmem > 3840) { - Maxmem_under16M = 3840; - if (Maxmem < 4096) { - Maxmem = 3840; - } - } - } -} - -int dma_init_flag = 1; /* dummy */ - -void init_pc98_dmac(void) -{ - outb(0x439, (inb(0x439) & 0xfb)); /* DMA Accsess Control over 1MB */ - outb(0x29, (0x0c | 0)); /* Bank Mode Reg. 16M mode */ - outb(0x29, (0x0c | 1)); /* Bank Mode Reg. 16M mode */ - outb(0x29, (0x0c | 2)); /* Bank Mode Reg. 16M mode */ - outb(0x29, (0x0c | 3)); /* Bank Mode Reg. 16M mode */ - outb(0x11, 0x50); /* PC98 must be 0x40 */ -} |
