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
|
/*
* Copyright (c) 2011 Aeroflex Gaisler
*
* BSD license:
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef _INCLUDE_LEON3_h
#define _INCLUDE_LEON3_h
#ifndef __ASSEMBLER__
#ifdef __cplusplus
extern "C"
{
#endif
#define ASI_LEON3_CACHEMISS 1
#define ASI_LEON3_SYSCTRL 0x02
#define ASI_LEON3_DFLUSH 0x11
#define ASI_LEON3_SYSCTRL_ICFG 0x08
#define ASI_LEON3_SYSCTRL_DCFG 0x0c
#define ASI_LEON3_SYSCTRL_CFG_SNOOPING (1<<27)
#define ASI_LEON3_SYSCTRL_CFG_SSIZE(c) (1<<((c>>20)&0xf))
extern __inline__ unsigned long sparc_leon23_get_psr (void)
{
unsigned int retval;
__asm__ __volatile__ ("rd %%psr, %0\n\t":"=r" (retval):);
return (retval);
}
extern __inline__ unsigned long sparc_leon23_get_psr_version (void)
{
unsigned int psr = sparc_leon23_get_psr ();
return (psr >> 24) & 0xf;
}
#define LEON_ISLEON2 (sparc_leon23_get_psr_version() == 2 || sparc_leon23_get_psr_version() == 0)
#define LEON_ISLEON3 (sparc_leon23_get_psr_version() == 3)
extern __inline__ unsigned long sparc_leon3_get_dcachecfg (void)
{
unsigned int retval;
__asm__
__volatile__ ("lda [%1] %2, %0\n\t":"=r" (retval):"r"
(ASI_LEON3_SYSCTRL_DCFG), "i" (ASI_LEON3_SYSCTRL));
return (retval);
}
extern __inline__ void sparc_leon3_enable_snooping (void)
{
/*enable snooping */
__asm__ volatile ("lda [%%g0] 2, %%l1\n\t"
"set 0x800000, %%l2\n\t"
"or %%l2, %%l1, %%l2\n\t"
"sta %%l2, [%%g0] 2\n\t":::"l1", "l2");
};
extern __inline__ void sparc_leon3_disable_cache (void)
{
/*asi 2 */
__asm__ volatile ("lda [%%g0] 2, %%l1\n\t"
"set 0x00000f, %%l2\n\t"
"andn %%l2, %%l1, %%l2\n\t"
"sta %%l2, [%%g0] 2\n\t":::"l1", "l2");
};
extern __inline__ void sparc_leon3_dcache_flush (void)
{
__asm__ __volatile__ (" flush "); //iflush
__asm__
__volatile__ ("sta %%g0, [%%g0] %0\n\t"::"i"
(ASI_LEON3_DFLUSH):"memory");
};
#ifdef __cplusplus
}
#endif
#endif /* !ASM */
#endif /* !_INCLUDE_LEON3_h */
/* end of include file */
|
