| 0,0 → 1,108 |
|---|
| /* |
| * Copyright (C) 2005 Ondrej Palkovsky |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - 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. |
| * - 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 <arch/drivers/arc.h> |
| #include <arch/mm/page.h> |
| #include <print.h> |
| #include <arch.h> |
| #include <arch/byteorder.h> |
| |
| /* This is a good joke, SGI HAS different types than NT bioses... */ |
| /* Here is the SGI type */ |
| static char *basetypes[] = { |
| "ExceptionBlock", |
| "SystemParameterBlock", |
| "FreeContiguous", |
| "FreeMemory", |
| "BadMemory", |
| "LoadedProgram", |
| "FirmwareTemporary", |
| "FirmwarePermanent" |
| }; |
| |
| static arc_sbp *sbp = (arc_sbp *)PA2KA(0x1000); |
| static arc_func_vector_t *arc_entry; |
| |
| static void _arc_putchar(char ch); |
| |
| /** Initialize ARC structure |
| * |
| * @return 0 - ARC OK, -1 - ARC does not exist |
| */ |
| int init_arc(void) |
| { |
| if (sbp->signature != ARC_MAGIC) { |
| sbp = NULL; |
| return -1; |
| } |
| arc_entry = sbp->firmwarevector; |
| |
| arc_putchar('A'); |
| arc_putchar('R'); |
| arc_putchar('C'); |
| arc_putchar('\n'); |
| } |
| |
| /** Return true if ARC is available */ |
| int arc_enabled(void) |
| { |
| return sbp != NULL; |
| } |
| |
| void arc_print_memory_map(void) |
| { |
| arc_memdescriptor_t *desc; |
| |
| if (!sbp) { |
| printf("ARC not enabled.\n"); |
| return; |
| } |
| |
| printf("Memory map:\n"); |
| |
| desc = arc_entry->getmemorydescriptor(NULL); |
| while (desc) { |
| printf("%s: %d (size: %dKB)\n",basetypes[desc->type], |
| desc->basepage * 4096, |
| desc->basecount*4); |
| desc = arc_entry->getmemorydescriptor(desc); |
| } |
| } |
| |
| /** Print charactor to console */ |
| void arc_putchar(char ch) |
| { |
| __u32 cnt; |
| pri_t pri; |
| |
| /* TODO: Should be spinlock? */ |
| pri = cpu_priority_high(); |
| arc_entry->write(1, &ch, 1, &cnt); |
| cpu_priority_restore(pri); |
| |
| } |