summaryrefslogtreecommitdiff
path: root/hw/xfree86/os-support/lynxos/lynx_noinline.c
blob: 858b0eb650bd4c2dde6d829c9dc38d5c46f9e847 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/lynxos/lynx_noinline.c,v 3.6 2002/01/25 21:56:20 tsi Exp $ */
/*
 * Copyright 1998 by Metro Link Incorporated
 *
 * Permission to use, copy, modify, distribute, and sell this software
 * and its documentation for any purpose is hereby granted without fee,
 * provided that the above copyright notice appear in all copies and that
 * both that copyright notice and this permission notice appear in
 * supporting documentation, and that the name of Metro Link
 * Incorporated not be used in advertising or publicity pertaining to
 * distribution of the software without specific, written prior
 * permission.  Metro Link Incorporated makes no representations
 * about the suitability of this software for any purpose.  It is
 * provided "as is" without express or implied warranty.
 *
 * METRO LINK INCORPORATED DISCLAIMS ALL WARRANTIES WITH REGARD
 * TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS, IN NO EVENT SHALL METRO LINK INCORPORATED BE
 * LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
 * DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
 * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
 * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
 * SOFTWARE.
 */

#if /* NO_INLINE && */ defined(__powerpc__)

#include "xf86Pci.h"

extern volatile unsigned char *ioBase;

void
eieio()
{
	__asm__ __volatile__ ("eieio");
}

unsigned long
ldl_brx(volatile unsigned char *base, int ndx)
{
	register unsigned long tmp = *(volatile unsigned long *)(base+ndx);
	return( ((tmp & 0x000000ff) << 24) |
		((tmp & 0x0000ff00) << 8) |
		((tmp & 0x00ff0000) >> 8) |
		((tmp & 0xff000000) >> 24) );
}

unsigned short
ldw_brx(volatile unsigned char *base, int ndx)
{
	register unsigned short tmp = *(volatile unsigned short *)(base+ndx);
	return((tmp << 8) | (tmp >> 8));
}

void
stl_brx(unsigned long val, volatile unsigned char *base, int ndx)
{
   unsigned char *p = (unsigned char *)&val;
   unsigned long tmp = (p[3] << 24) | (p[2] << 16) | (p[1] << 8) | (p[0] << 0);
   *(volatile unsigned long *)(base+ndx) = tmp;
}

void
stw_brx(unsigned short val, volatile unsigned char *base, int ndx)
{
  unsigned char *p = (unsigned char *)&val;
  unsigned short tmp = (p[1] << 8) | p[0];
  *(volatile unsigned short *)(base+ndx) = tmp;
}

void
outb(IOADDRESS port, unsigned char value)
{
	*((volatile unsigned char *)(ioBase + port)) = value; eieio();
}

void
outw(IOADDRESS port, unsigned short value)
{
	stw_brx(value, ioBase, port); eieio();
}

void
outl(IOADDRESS port, unsigned int value)
{
	stl_brx(value, ioBase, port); eieio();
}

unsigned char
inb(IOADDRESS port)
{
	unsigned char val;

	val = *((volatile unsigned char *)(ioBase + port)); eieio();
	return(val);
}

unsigned short
inw(IOADDRESS port)
{
	unsigned short val;

	val = ldw_brx(ioBase, port); eieio();
	return(val);
}

unsigned int
inl(IOADDRESS port)
{
	unsigned int val;

	val = ldl_brx(ioBase, port); eieio();
	return(val);
}

unsigned long 
ldl_u(void *p)
{
	return (((*(unsigned char *)(p)) |
	 	 (*((unsigned char *)(p)+1)<<8)	|
		 (*((unsigned char *)(p)+2)<<16) |
		 (*((unsigned char *)(p)+3)<<24)));
}

unsigned long 
ldq_u(void *p)
{
	return ldl_u(p);
}

unsigned short
ldw_u(void *p)
{
	return(((*(unsigned char *)(p)) |
	       (*((unsigned char *)(p)+1)<<8)));
}

void
stl_u(unsigned long v, void *p)
{

	(*(unsigned char *)(p)) = (v);
	(*((unsigned char *)(p)+1)) = ((v) >> 8);
	(*((unsigned char *)(p)+2)) = ((v) >> 16);
	(*((unsigned char *)(p)+3)) = ((v) >> 24);
}

void
stq_u(unsigned long v, void *p)
{
	stl_u(v,p);
}

void
stw_u(unsigned short v, void *p)
{
	(*(unsigned char *)(p)) = (v);
	(*((unsigned char *)(p)+1)) = ((v) >> 8);
}


void
mem_barrier(void)
{
   __asm__ __volatile__("eieio");
}

void
write_mem_barrier(void)
{
   __asm__ __volatile__("eieio");
}

#endif /* NO_INLINE && __powerpc__ */