source: mainline/kernel/arch/sparc32/include/arch/arch.h@ 1f12fab

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 1f12fab was 1f12fab, checked in by Jakub Klama <jakub.klama@…>, 12 years ago

First attempt to implement preemptive trap handlers
and switch to userspace. Preemptive traps are needed
for at least page faults, as page fault handling code
can trigger window underflow/overflow exceptions.

This commit also introduces userspace window buffer
for saving userspace register windows (just as in
sparc64).

These changes are unfinished and far from working
correctly.

  • Property mode set to 100644
File size: 2.2 KB
Line 
1/*
2 * Copyright (c) 2010 Martin Decky
3 * Copyright (c) 2013 Jakub Klama
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * - Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * - Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * - The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30/** @addtogroup sparc32
31 * @{
32 */
33/** @file
34 */
35
36#ifndef KERN_sparc32_ARCH_H_
37#define KERN_sparc32_ARCH_H_
38
39#ifndef __ASM__
40
41#include <typedefs.h>
42
43#define NWINDOWS 8
44
45/* ASI assignments: */
46#define ASI_CACHEMISS 0x01
47#define ASI_CACHECTRL 0x02
48#define ASI_MMUREGS 0x19
49#define ASI_MMUBYPASS 0x1c
50
51#define TASKMAP_MAX_RECORDS 32
52#define CPUMAP_MAX_RECORDS 32
53
54#define BOOTINFO_TASK_NAME_BUFLEN 32
55
56typedef struct {
57 void *addr;
58 size_t size;
59 char name[BOOTINFO_TASK_NAME_BUFLEN];
60} utask_t;
61
62typedef struct {
63 size_t cnt;
64 utask_t tasks[TASKMAP_MAX_RECORDS];
65} bootinfo_t;
66
67extern uintptr_t kernel_sp;
68extern uintptr_t uspace_wbuf;
69
70extern void arch_pre_main(void *unused, bootinfo_t *bootinfo);
71
72#endif
73
74#endif
75
76/** @}
77 */
Note: See TracBrowser for help on using the repository browser.