source: mainline/kernel/arch/sparc64/src/dummy.s@ fd85ae5

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since fd85ae5 was ed166f7, checked in by Jakub Jermar <jakub@…>, 19 years ago

A lot of untested sparc64 stuff:

  • Write ASID to hardware when a thread is about to run in userspace.
  • Add userspace() and switch_to_userspace() functions.
  • Handle special cases when the userspace spill/fill handler causes MMU trap.
  • Resolve some TODOs in the existing sparc64 code.
  • sparc64 has now C99 compliant header guards.
  • Formatting and indentation fixes.
  • Property mode set to 100644
File size: 1.9 KB
Line 
1#
2# Copyright (C) 2005 Jakub Jermar
3# All rights reserved.
4#
5# Redistribution and use in source and binary forms, with or without
6# modification, are permitted provided that the following conditions
7# are met:
8#
9# - Redistributions of source code must retain the above copyright
10# notice, this list of conditions and the following disclaimer.
11# - Redistributions in binary form must reproduce the above copyright
12# notice, this list of conditions and the following disclaimer in the
13# documentation and/or other materials provided with the distribution.
14# - The name of the author may not be used to endorse or promote products
15# derived from this software without specific prior written permission.
16#
17# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27#
28
29.text
30
31.global asm_delay_loop
32.global cpu_sleep
33.global fmath_dpow
34.global fmath_fint
35.global fmath_get_decimal_exponent
36.global fmath_is_infinity
37.global fmath_is_nan
38.global fpu_context_restore
39.global fpu_context_save
40.global fpu_enable
41.global fpu_init
42.global sys_tls_set
43
44.global dummy
45
46asm_delay_loop:
47cpu_sleep:
48fmath_dpow:
49fmath_fint:
50fmath_get_decimal_exponent:
51fmath_is_infinity:
52fmath_is_nan:
53fpu_context_restore:
54fpu_context_save:
55fpu_enable:
56fpu_init:
57sys_tls_set:
58
59dummy:
60 retl
61 nop
62
63.global cpu_halt
64cpu_halt:
65 b cpu_halt
66 nop
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