1 /*
2 * mxcc.h: Definitions of the Viking MXCC registers
3 *
4 * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
5 */
6
7 #ifndef _SPARC_MXCC_H
8 #define _SPARC_MXCC_H
9
10 /* These registers are accessed through ASI 0x2. */
11 #define MXCC_DATSTREAM 0x1C00000 /* Data stream register */
12 #define MXCC_SRCSTREAM 0x1C00100 /* Source stream register */
13 #define MXCC_DESSTREAM 0x1C00200 /* Destination stream register */
14 #define MXCC_RMCOUNT 0x1C00300 /* Count of references and misses */
15 #define MXCC_STEST 0x1C00804 /* Internal self-test */
16 #define MXCC_CREG 0x1C00A04 /* Control register */
17 #define MXCC_SREG 0x1C00B00 /* Status register */
18 #define MXCC_RREG 0x1C00C04 /* Reset register */
19 #define MXCC_EREG 0x1C00E00 /* Error code register */
20 #define MXCC_PREG 0x1C00F04 /* Address port register */
21
22 /* Some MXCC constants. */
23 #define MXCC_STREAM_SIZE 0x20 /* Size in bytes of one stream r/w */
24
25 /* The MXCC Control Register:
26 *
27 * ----------------------------------------------------------------------
28 * | | RRC | RSV |PRE|MCE|PARE|ECE|RSV|
29 * ----------------------------------------------------------------------
30 * 31 10 9 8-6 5 4 3 2 1-0
31 *
32 * RRC: Controls what you read from MXCC_RMCOUNT reg.
33 * 0=Misses 1=References
34 * PRE: Prefetch enable
35 * MCE: Multiple Command Enable
36 * PARE: Parity enable
37 * ECE: External cache enable
38 */
39
40 #define MXCC_CTL_RRC 0x00000200
41 #define MXCC_CTL_PRE 0x00000020
42 #define MXCC_CTL_MCE 0x00000010
43 #define MXCC_CTL_PARE 0x00000008
44 #define MXCC_CTL_ECE 0x00000004
45
46 /* The MXCC Error Register:
47 *
48 * --------------------------------------------------------
49 * |ME| RSV|CE|PEW|PEE|ASE|EIV| MOPC|ECODE|PRIV|RSV|HPADDR|
50 * --------------------------------------------------------
51 * 31 30 29 28 27 26 25 24-15 14-7 6 5-3 2-0
52 *
53 * ME: Multiple Errors have occurred
54 * CE: Cache consistency Error
55 * PEW: Parity Error during a Write operation
56 * PEE: Parity Error involving the External cache
57 * ASE: ASynchronous Error
58 * EIV: This register is toast
59 * MOPC: MXCC Operation Code for instance causing error
60 * ECODE: The Error CODE
61 * PRIV: A privileged mode error? 0=no 1=yes
62 * HPADDR: High PhysicalADDRess bits (35-32)
63 */
64
65 #define MXCC_ERR_ME 0x80000000
66 #define MXCC_ERR_CE 0x20000000
67 #define MXCC_ERR_PEW 0x10000000
68 #define MXCC_ERR_PEE 0x08000000
69 #define MXCC_ERR_ASE 0x04000000
70 #define MXCC_ERR_EIV 0x02000000
71 #define MXCC_ERR_MOPC 0x01FF8000
72 #define MXCC_ERR_ECODE 0x00007F80
73 #define MXCC_ERR_PRIV 0x00000040
74 #define MXCC_ERR_HPADDR 0x0000000f
75
76 /* The MXCC Port register:
77 *
78 * -----------------------------------------------------
79 * | | MID | |
80 * -----------------------------------------------------
81 * 31 21 20-18 17 0
82 *
83 * MID: The moduleID of the cpu your read this from.
84 */
85
86 #ifndef __ASSEMBLY__
87
mxcc_set_stream_src(unsigned long * paddr)88 static inline void mxcc_set_stream_src(unsigned long *paddr)
89 {
90 unsigned long data0 = paddr[0];
91 unsigned long data1 = paddr[1];
92
93 __asm__ __volatile__ ("or %%g0, %0, %%g2\n\t"
94 "or %%g0, %1, %%g3\n\t"
95 "stda %%g2, [%2] %3\n\t" : :
96 "r" (data0), "r" (data1),
97 "r" (MXCC_SRCSTREAM),
98 "i" (ASI_M_MXCC) : "g2", "g3");
99 }
100
mxcc_set_stream_dst(unsigned long * paddr)101 static inline void mxcc_set_stream_dst(unsigned long *paddr)
102 {
103 unsigned long data0 = paddr[0];
104 unsigned long data1 = paddr[1];
105
106 __asm__ __volatile__ ("or %%g0, %0, %%g2\n\t"
107 "or %%g0, %1, %%g3\n\t"
108 "stda %%g2, [%2] %3\n\t" : :
109 "r" (data0), "r" (data1),
110 "r" (MXCC_DESSTREAM),
111 "i" (ASI_M_MXCC) : "g2", "g3");
112 }
113
mxcc_get_creg(void)114 static inline unsigned long mxcc_get_creg(void)
115 {
116 unsigned long mxcc_control;
117
118 __asm__ __volatile__("set 0xffffffff, %%g2\n\t"
119 "set 0xffffffff, %%g3\n\t"
120 "stda %%g2, [%1] %2\n\t"
121 "lda [%3] %2, %0\n\t" :
122 "=r" (mxcc_control) :
123 "r" (MXCC_EREG), "i" (ASI_M_MXCC),
124 "r" (MXCC_CREG) : "g2", "g3");
125 return mxcc_control;
126 }
127
mxcc_set_creg(unsigned long mxcc_control)128 static inline void mxcc_set_creg(unsigned long mxcc_control)
129 {
130 __asm__ __volatile__("sta %0, [%1] %2\n\t" : :
131 "r" (mxcc_control), "r" (MXCC_CREG),
132 "i" (ASI_M_MXCC));
133 }
134
135 #endif /* !__ASSEMBLY__ */
136
137 #endif /* !(_SPARC_MXCC_H) */
138