377 lines
10 KiB
C
377 lines
10 KiB
C
/* $NetBSD: arcbios.c,v 1.7 2000/06/29 08:34:09 mrg Exp $ */
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/* $OpenBSD: arcbios.c,v 1.3 1998/06/06 06:33:33 mickey Exp $ */
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/*-
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* Copyright (c) 1996 M. Warner Losh. All rights reserved.
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* Copyright (c) 1996, 1997, 1998 Per Fogelstrom. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/proc.h>
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#include <sys/user.h>
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#include <sys/kcore.h>
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#include <uvm/uvm_extern.h>
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#include <dev/cons.h>
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#include <machine/cpu.h>
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#include <arc/arc/arcbios.h>
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#include <arc/arc/arctype.h>
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int Bios_Read __P((int, char *, int, int *));
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int Bios_Write __P((int, char *, int, int *));
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int Bios_Open __P((char *, int, u_int *));
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int Bios_Close __P((u_int));
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arc_mem_t *Bios_GetMemoryDescriptor __P((arc_mem_t *));
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arc_sid_t *Bios_GetSystemId __P((void));
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arc_config_t *Bios_GetChild __P((arc_config_t *));
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arc_dsp_stat_t *Bios_GetDisplayStatus __P((int));
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char vendor[sizeof(((arc_sid_t *)0)->vendor) + 1];
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char prodid[sizeof(((arc_sid_t *)0)->prodid) + 1];
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arc_dsp_stat_t displayinfo; /* Save area for display status info. */
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static struct systypes {
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char *sys_vend; /* Vendor ID if name is ambigous */
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char *sys_name; /* May be left NULL if name is sufficient */
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int sys_type;
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} sys_types[] = {
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#ifdef arc
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{ NULL, "PICA-61", ACER_PICA_61 },
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{ NULL, "NEC-R94", NEC_R94 },
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{ NULL, "NEC-RA'94", NEC_RAx94 },
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{ NULL, "NEC-RD94", NEC_RD94 },
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{ NULL, "NEC-R96", NEC_R96 },
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{ NULL, "DESKTECH-TYNE", DESKSTATION_TYNE },
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{ NULL, "DESKTECH-ARCStation I", DESKSTATION_RPC44 },
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{ NULL, "Microsoft-Jazz", MAGNUM },
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{ NULL, "RM200PCI", SNI_RM200 },
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#endif
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#ifdef sgi
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{ NULL, "SGI-IP17", SGI_CRIMSON },
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{ NULL, "SGI-IP19", SGI_ONYX },
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{ NULL, "SGI-IP20", SGI_INDIGO },
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{ NULL, "SGI-IP21", SGI_POWER },
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{ NULL, "SGI-IP22", SGI_INDY },
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{ NULL, "SGI-IP25", SGI_POWER10 },
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{ NULL, "SGI-IP26", SGI_POWERI },
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{ NULL, "SGI-IP32", SGI_O2 },
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#endif
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};
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#define KNOWNSYSTEMS (sizeof(sys_types) / sizeof(struct systypes))
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/*
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* ARC Bios trampoline code.
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*/
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#define ARC_Call(Name,Offset) \
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__asm__("\n" \
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" .text\n" \
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" .ent " #Name "\n" \
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" .align 3\n" \
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" .set noreorder\n" \
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" .globl " #Name "\n" \
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#Name":\n" \
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" lw $2, 0x80001020\n"\
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" lw $2," #Offset "($2)\n"\
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" jr $2\n" \
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" nop\n" \
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" .end " #Name "\n" );
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ARC_Call(Bios_Load, 0x00);
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ARC_Call(Bios_Invoke, 0x04);
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ARC_Call(Bios_Execute, 0x08);
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ARC_Call(Bios_Halt, 0x0c);
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ARC_Call(Bios_PowerDown, 0x10);
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ARC_Call(Bios_Restart, 0x14);
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ARC_Call(Bios_Reboot, 0x18);
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ARC_Call(Bios_EnterInteractiveMode, 0x1c);
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ARC_Call(Bios_Unused1, 0x20); /* return_from_main? */
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ARC_Call(Bios_GetPeer, 0x24);
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ARC_Call(Bios_GetChild, 0x28);
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ARC_Call(Bios_GetParent, 0x2c);
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ARC_Call(Bios_GetConfigurationData, 0x30);
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ARC_Call(Bios_AddChild, 0x34);
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ARC_Call(Bios_DeleteComponent, 0x38);
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ARC_Call(Bios_GetComponent, 0x3c);
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ARC_Call(Bios_SaveConfiguration, 0x40);
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ARC_Call(Bios_GetSystemId, 0x44);
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ARC_Call(Bios_GetMemoryDescriptor, 0x48);
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ARC_Call(Bios_Unused2, 0x4c); /* signal??? */
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ARC_Call(Bios_GetTime, 0x50);
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ARC_Call(Bios_GetRelativeTime, 0x54);
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ARC_Call(Bios_GetDirectoryEntry, 0x58);
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ARC_Call(Bios_Open, 0x5c);
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ARC_Call(Bios_Close, 0x60);
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ARC_Call(Bios_Read, 0x64);
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ARC_Call(Bios_GetReadStatus, 0x68);
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ARC_Call(Bios_Write, 0x6c);
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ARC_Call(Bios_Seek, 0x70);
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ARC_Call(Bios_Mount, 0x74);
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ARC_Call(Bios_GetEnvironmentVariable, 0x78);
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ARC_Call(Bios_SetEnvironmentVariable, 0x7c);
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ARC_Call(Bios_GetFileInformation, 0x80);
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ARC_Call(Bios_SetFileInformation, 0x84);
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ARC_Call(Bios_FlushAllCaches, 0x88);
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/* note: the followings don't exist on SGI */
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#ifdef arc
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ARC_Call(Bios_TestUnicodeCharacter, 0x8c);
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ARC_Call(Bios_GetDisplayStatus, 0x90);
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#endif
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/*
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* BIOS based console, for early stage.
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*/
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int biosgetc __P((dev_t));
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void biosputc __P((dev_t, int));
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/* this is to fake out the console routines, while booting. */
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struct consdev bioscons = {
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NULL, NULL, biosgetc, biosputc, nullcnpollc, NULL, NODEV, CN_DEAD
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};
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int
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biosgetc(dev)
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dev_t dev;
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{
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int cnt;
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char buf;
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if (Bios_Read(0, &buf, 1, &cnt) != arc_ESUCCESS)
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return (-1);
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return (buf & 255);
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}
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void
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biosputc(dev, ch)
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dev_t dev;
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int ch;
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{
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int cnt;
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char buf;
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buf = ch;
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Bios_Write(1, &buf, 1, &cnt);
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}
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void
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bios_init_console()
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{
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static int initialized = 0;
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if (!initialized) {
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initialized = 1;
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/* fake out the console routines, for now */
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cn_tab = &bioscons;
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}
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}
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/*
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* Get memory descriptor for the memory configuration and
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* create a layout database used by pmap init to set up
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* the memory system.
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*
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* Concatenate obvious adjecent segments.
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*/
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int
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bios_configure_memory(mem_reserved, mem_clusters, mem_cluster_cnt_return)
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int *mem_reserved;
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phys_ram_seg_t *mem_clusters;
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int *mem_cluster_cnt_return;
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{
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int physmem = 0; /* Total physical memory size */
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int mem_cluster_cnt = 0;
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arc_mem_t *descr = NULL;
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paddr_t seg_start, seg_end;
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int i, reserved;
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while ((descr = Bios_GetMemoryDescriptor(descr)) != NULL) {
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seg_start = descr->BasePage * 4096;
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seg_end = seg_start + descr->PageCount * 4096;
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#ifdef BIOS_MEMORY_DEBUG
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printf("memory type:%d, 0x%8lx..%8lx, size:%8ld bytes\n",
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descr->Type, seg_start, seg_end, seg_end - seg_start);
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#endif
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switch (descr->Type) {
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case BadMemory: /* Have no use for these */
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break;
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case ExeceptionBlock:
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case SystemParameterBlock:
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case FirmwarePermanent:
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reserved = 1;
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goto account_it;
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case FreeMemory:
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case LoadedProgram: /* This is the loaded kernel */
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case FirmwareTemporary:
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case FreeContigous:
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reserved = 0;
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account_it:
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physmem += descr->PageCount * 4096;
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for (i = 0; i < mem_cluster_cnt; ) {
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if (mem_reserved[i] == reserved &&
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mem_clusters[i].start == seg_end)
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seg_end += mem_clusters[i].size;
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else if (mem_reserved[i] == reserved &&
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mem_clusters[i].start +
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mem_clusters[i].size == seg_start)
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seg_start = mem_clusters[i].start;
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else { /* do not merge the cluster */
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i++;
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continue;
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}
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--mem_cluster_cnt;
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mem_reserved[i] = mem_reserved[mem_cluster_cnt];
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mem_clusters[i] = mem_clusters[mem_cluster_cnt];
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}
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/* assert(i == mem_cluster_cnt); */
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if (mem_cluster_cnt >= VM_PHYSSEG_MAX) {
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printf("VM_PHYSSEG_MAX too small\n");
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for (;;)
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;
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}
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mem_reserved[i] = reserved;
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mem_clusters[i].start = seg_start;
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mem_clusters[i].size = seg_end - seg_start;
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mem_cluster_cnt++;
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break;
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default: /* Unknown type, leave it alone... */
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break;
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}
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}
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#ifdef MEMORY_DEBUG
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for (i = 0; i < mem_cluster_cnt; i++)
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printf("mem_clusters[%d] = %d:{ 0x%8lx, 0x%8lx }\n", i,
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mem_reserved[i],
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(long)mem_clusters[i].start,
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(long)mem_clusters[i].size);
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printf("physmem = %d\n", physmem);
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#endif
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*mem_cluster_cnt_return = mem_cluster_cnt;
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return (physmem);
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}
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/*
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* Find out system type.
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*/
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int
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bios_ident()
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{
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arc_config_t *cf;
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arc_sid_t *sid;
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int i;
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if ((ArcBiosBase->magic != ARC_PARAM_BLK_MAGIC) &&
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(ArcBiosBase->magic != ARC_PARAM_BLK_MAGIC_BUG)) {
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return (-1); /* This is not an ARC system */
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}
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#ifdef BIOS_IDENT_DEBUG
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bios_init_console();
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#endif
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sid = Bios_GetSystemId();
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if (sid) {
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bcopy(sid->vendor, vendor, sizeof(sid->vendor));
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vendor[sizeof(vendor) - 1] = 0;
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bcopy(sid->prodid, prodid, sizeof(sid->prodid));
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prodid[sizeof(prodid) - 1] = 0;
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#ifdef BIOS_IDENT_DEBUG
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printf("BIOS Vendor ID [%8.8s]\n", sid->vendor);
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printf("BIOS Product ID [%02x", sid->prodid[0]);
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for (i = 1; i < sizeof(sid->prodid); i++)
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printf(":%02x", sid->prodid[i]);
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printf("]\n");
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#endif
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} else {
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strcpy(vendor, "N/A");
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strcpy(prodid, "N/A");
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}
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cf = Bios_GetChild(NULL);
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if (cf) {
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#ifdef BIOS_IDENT_DEBUG
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printf("BIOS System ID [%s]\n", cf->id);
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#endif
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for (i = 0; i < KNOWNSYSTEMS; i++) {
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if (strcmp(sys_types[i].sys_name, cf->id) != 0)
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continue;
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if (sys_types[i].sys_vend &&
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strncmp(sys_types[i].sys_vend, sid->vendor,
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sizeof(sid->vendor)) != 0)
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continue;
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return (sys_types[i].sys_type); /* Found it. */
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}
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}
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bios_init_console();
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printf("UNIDENTIFIED ARC SYSTEM [%s] VENDOR [%8.8s] PRODID [%02x",
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cf ? cf->id : "N/A", vendor, prodid[0]);
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for (i = 1; i < sizeof(sid->prodid); i++)
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printf(":%02x", prodid[i]);
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printf("]\n");
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printf("Please contact NetBSD (mailto: port-arc@netbsd.org).\n");
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for (;;)
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;
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}
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/*
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* save various information of BIOS for future use.
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*/
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void
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bios_save_info()
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{
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#ifdef arc
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displayinfo = *Bios_GetDisplayStatus(1);
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#endif
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}
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#ifdef arc
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/*
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* Return geometry of the display. Used by pccons.c to set up the
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* display configuration.
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*/
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void
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bios_display_info(xpos, ypos, xsize, ysize)
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int *xpos;
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int *ypos;
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int *xsize;
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int *ysize;
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{
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*xpos = displayinfo.CursorXPosition;
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*ypos = displayinfo.CursorYPosition;
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*xsize = displayinfo.CursorMaxXPosition;
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*ysize = displayinfo.CursorMaxYPosition;
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}
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#endif
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