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a09e091a JB |
1 | |
2 | #ifdef HAVE_XORG_CONFIG_H | |
3 | #include <xorg-config.h> | |
4 | #endif | |
5 | ||
6 | #include <X11/X.h> | |
7 | #include "input.h" | |
8 | #include "scrnintstr.h" | |
9 | #include "compiler.h" | |
10 | ||
11 | #include "xf86.h" | |
12 | #include "xf86Priv.h" | |
13 | #include "xf86_OSlib.h" | |
14 | #include "xf86OSpriv.h" | |
15 | ||
16 | #include <machine/bwx.h> | |
17 | ||
18 | /* | |
19 | * The following functions are used only on EV56 and greater CPUs, | |
20 | * and the assembler requires going to EV56 mode in order to emit | |
21 | * these instructions. | |
22 | */ | |
23 | __asm(".arch ev56"); | |
24 | ||
25 | int readDense8(pointer Base, register unsigned long Offset); | |
26 | int readDense16(pointer Base, register unsigned long Offset); | |
27 | int readDense32(pointer Base, register unsigned long Offset); | |
28 | void | |
29 | writeDenseNB8(int Value, pointer Base, register unsigned long Offset); | |
30 | void | |
31 | writeDenseNB16(int Value, pointer Base, register unsigned long Offset); | |
32 | void | |
33 | writeDenseNB32(int Value, pointer Base, register unsigned long Offset); | |
34 | void | |
35 | writeDense8(int Value, pointer Base, register unsigned long Offset); | |
36 | void | |
37 | writeDense16(int Value, pointer Base, register unsigned long Offset); | |
38 | void | |
39 | writeDense32(int Value, pointer Base, register unsigned long Offset); | |
40 | ||
41 | int | |
42 | readDense8(pointer Base, register unsigned long Offset) | |
43 | { | |
44 | mem_barrier(); | |
45 | return (alpha_ldbu((pointer) ((unsigned long) Base + (Offset)))); | |
46 | } | |
47 | ||
48 | int | |
49 | readDense16(pointer Base, register unsigned long Offset) | |
50 | { | |
51 | mem_barrier(); | |
52 | return (alpha_ldwu((pointer) ((unsigned long) Base + (Offset)))); | |
53 | } | |
54 | ||
55 | int | |
56 | readDense32(pointer Base, register unsigned long Offset) | |
57 | { | |
58 | mem_barrier(); | |
59 | return *(volatile CARD32 *) ((unsigned long) Base + (Offset)); | |
60 | } | |
61 | ||
62 | void | |
63 | writeDenseNB8(int Value, pointer Base, register unsigned long Offset) | |
64 | { | |
65 | alpha_stb((pointer) ((unsigned long) Base + (Offset)), Value); | |
66 | } | |
67 | ||
68 | void | |
69 | writeDenseNB16(int Value, pointer Base, register unsigned long Offset) | |
70 | { | |
71 | alpha_stw((pointer) ((unsigned long) Base + (Offset)), Value); | |
72 | } | |
73 | ||
74 | void | |
75 | writeDenseNB32(int Value, pointer Base, register unsigned long Offset) | |
76 | { | |
77 | *(volatile CARD32 *) ((unsigned long) Base + (Offset)) = Value; | |
78 | } | |
79 | ||
80 | void | |
81 | writeDense8(int Value, pointer Base, register unsigned long Offset) | |
82 | { | |
83 | write_mem_barrier(); | |
84 | alpha_stb((pointer) ((unsigned long) Base + (Offset)), Value); | |
85 | } | |
86 | ||
87 | void | |
88 | writeDense16(int Value, pointer Base, register unsigned long Offset) | |
89 | { | |
90 | write_mem_barrier(); | |
91 | alpha_stw((pointer) ((unsigned long) Base + (Offset)), Value); | |
92 | } | |
93 | ||
94 | void | |
95 | writeDense32(int Value, pointer Base, register unsigned long Offset) | |
96 | { | |
97 | write_mem_barrier(); | |
98 | *(volatile CARD32 *) ((unsigned long) Base + (Offset)) = Value; | |
99 | } |