summaryrefslogtreecommitdiff
path: root/include/asm-sparc/mxcc.h
blob: 60ef9d6fe7bca424d3b8a5e2cb846fb324ef7802 (plain) (blame)
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
/* $Id: mxcc.h,v 1.7 1997/04/20 14:11:46 ecd Exp $
 * mxcc.h:  Definitions of the Viking MXCC registers
 *
 * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
 */

#ifndef _SPARC_MXCC_H
#define _SPARC_MXCC_H

/* These registers are accessed through ASI 0x2. */
#define MXCC_DATSTREAM       0x1C00000  /* Data stream register */
#define MXCC_SRCSTREAM       0x1C00100  /* Source stream register */
#define MXCC_DESSTREAM       0x1C00200  /* Destination stream register */
#define MXCC_RMCOUNT         0x1C00300  /* Count of references and misses */
#define MXCC_STEST           0x1C00804  /* Internal self-test */
#define MXCC_CREG            0x1C00A04  /* Control register */
#define MXCC_SREG            0x1C00B00  /* Status register */
#define MXCC_RREG            0x1C00C04  /* Reset register */
#define MXCC_EREG            0x1C00E00  /* Error code register */
#define MXCC_PREG            0x1C00F04  /* Address port register */

/* Some MXCC constants. */
#define MXCC_STREAM_SIZE     0x20       /* Size in bytes of one stream r/w */

/* The MXCC Control Register:
 *
 * ----------------------------------------------------------------------
 * |                                   | RRC | RSV |PRE|MCE|PARE|ECE|RSV|
 * ----------------------------------------------------------------------
 *  31                              10    9    8-6   5   4    3   2  1-0
 *
 * RRC: Controls what you read from MXCC_RMCOUNT reg.
 *      0=Misses 1=References
 * PRE: Prefetch enable
 * MCE: Multiple Command Enable
 * PARE: Parity enable
 * ECE: External cache enable
 */

#define MXCC_CTL_RRC   0x00000200
#define MXCC_CTL_PRE   0x00000020
#define MXCC_CTL_MCE   0x00000010
#define MXCC_CTL_PARE  0x00000008
#define MXCC_CTL_ECE   0x00000004

/* The MXCC Error Register:
 *
 * --------------------------------------------------------
 * |ME| RSV|CE|PEW|PEE|ASE|EIV| MOPC|ECODE|PRIV|RSV|HPADDR|
 * --------------------------------------------------------
 *  31   30 29  28  27  26  25 24-15  14-7   6  5-3   2-0
 *
 * ME: Multiple Errors have occurred
 * CE: Cache consistency Error
 * PEW: Parity Error during a Write operation
 * PEE: Parity Error involving the External cache
 * ASE: ASynchronous Error
 * EIV: This register is toast
 * MOPC: MXCC Operation Code for instance causing error
 * ECODE: The Error CODE
 * PRIV: A privileged mode error? 0=no 1=yes
 * HPADDR: High PhysicalADDRess bits (35-32)
 */

#define MXCC_ERR_ME     0x80000000
#define MXCC_ERR_CE     0x20000000
#define MXCC_ERR_PEW    0x10000000
#define MXCC_ERR_PEE    0x08000000
#define MXCC_ERR_ASE    0x04000000
#define MXCC_ERR_EIV    0x02000000
#define MXCC_ERR_MOPC   0x01FF8000
#define MXCC_ERR_ECODE  0x00007F80
#define MXCC_ERR_PRIV   0x00000040
#define MXCC_ERR_HPADDR 0x0000000f

/* The MXCC Port register:
 *
 * -----------------------------------------------------
 * |                | MID |                            |
 * -----------------------------------------------------
 *  31            21 20-18 17                         0
 *
 * MID: The moduleID of the cpu your read this from.
 */

#ifndef __ASSEMBLY__

extern __inline__ void mxcc_set_stream_src(unsigned long *paddr)
{
	unsigned long data0 = paddr[0];
	unsigned long data1 = paddr[1];

	__asm__ __volatile__ ("or %%g0, %0, %%g2\n\t"
			      "or %%g0, %1, %%g3\n\t"
			      "stda %%g2, [%2] %3\n\t" : :
			      "r" (data0), "r" (data1),
			      "r" (MXCC_SRCSTREAM),
			      "i" (ASI_M_MXCC) : "g2", "g3");
}

extern __inline__ void mxcc_set_stream_dst(unsigned long *paddr)
{
	unsigned long data0 = paddr[0];
	unsigned long data1 = paddr[1];

	__asm__ __volatile__ ("or %%g0, %0, %%g2\n\t"
			      "or %%g0, %1, %%g3\n\t"
			      "stda %%g2, [%2] %3\n\t" : :
			      "r" (data0), "r" (data1),
			      "r" (MXCC_DESSTREAM),
			      "i" (ASI_M_MXCC) : "g2", "g3");
}

extern __inline__ unsigned long mxcc_get_creg(void)
{
	unsigned long mxcc_control;

	__asm__ __volatile__("set 0xffffffff, %%g2\n\t"
			     "set 0xffffffff, %%g3\n\t"
			     "stda %%g2, [%1] %2\n\t"
			     "lda [%3] %2, %0\n\t" :
			     "=r" (mxcc_control) :
			     "r" (MXCC_EREG), "i" (ASI_M_MXCC),
			     "r" (MXCC_CREG) : "g2", "g3");
	return mxcc_control;
}

extern __inline__ void mxcc_set_creg(unsigned long mxcc_control)
{
	__asm__ __volatile__("sta %0, [%1] %2\n\t" : :
			     "r" (mxcc_control), "r" (MXCC_CREG),
			     "i" (ASI_M_MXCC));
}

#endif /* !__ASSEMBLY__ */

#endif /* !(_SPARC_MXCC_H) */