aboutsummaryrefslogtreecommitdiffstats
path: root/arch/sparc/include/asm/obio.h
blob: 4ade0c8a2c79489b1c3d2e4a0b8195b739c52035 (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
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
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
/*
 * obio.h:  Some useful locations in 0xFXXXXXXXX PA obio space on sun4d.
 *
 * Copyright (C) 1997 Jakub Jelinek <jj@sunsite.mff.cuni.cz>
 */

#ifndef _SPARC_OBIO_H
#define _SPARC_OBIO_H

#include <asm/asi.h>

/* This weird monster likes to use the very upper parts of
   36bit PA for these things :) */
   
/* CSR space (for each XDBUS)
 *  ------------------------------------------------------------------------
 *  |   0xFE  |   DEVID    |                | XDBUS ID |                   |
 *  ------------------------------------------------------------------------
 *  35      28 27        20 19            10 9        8 7                 0
 */
   
#define CSR_BASE_ADDR		0xe0000000
#define CSR_CPU_SHIFT		(32 - 4 - 5)
#define CSR_XDBUS_SHIFT		8

#define CSR_BASE(cpu) (((CSR_BASE_ADDR >> CSR_CPU_SHIFT) + cpu) << CSR_CPU_SHIFT)

/* ECSR space (not for each XDBUS)
 *  ------------------------------------------------------------------------
 *  |   0xF  | DEVID[7:1] |                			           |
 *  ------------------------------------------------------------------------
 *  35     32 31        25 24                 				  0
 */
   
#define ECSR_BASE_ADDR		0x00000000
#define ECSR_CPU_SHIFT		(32 - 5)
#define ECSR_DEV_SHIFT		(32 - 8)

#define ECSR_BASE(cpu) ((cpu) << ECSR_CPU_SHIFT)
#define ECSR_DEV_BASE(devid) ((devid) << ECSR_DEV_SHIFT) 

/* Bus Watcher */
#define BW_LOCAL_BASE		0xfff00000

#define BW_CID			0x00000000
#define BW_DBUS_CTRL		0x00000008
#define BW_DBUS_DATA		0x00000010
#define BW_CTRL			0x00001000
#define BW_INTR_TABLE		0x00001040
#define BW_INTR_TABLE_CLEAR	0x00001080
#define BW_PRESCALER		0x000010c0
#define BW_PTIMER_LIMIT		0x00002000
#define BW_PTIMER_COUNTER2	0x00002004
#define BW_PTIMER_NDLIMIT	0x00002008
#define BW_PTIMER_CTRL		0x0000200c
#define BW_PTIMER_COUNTER	0x00002010
#define BW_TIMER_LIMIT		0x00003000
#define BW_TIMER_COUNTER2	0x00003004
#define BW_TIMER_NDLIMIT	0x00003008
#define BW_TIMER_CTRL		0x0000300c
#define BW_TIMER_COUNTER	0x00003010

/* BW Control */
#define BW_CTRL_USER_TIMER	0x00000004	/* Is User Timer Free run enabled */

/* Boot Bus */
#define BB_LOCAL_BASE		0xf0000000

#define BB_STAT1		0x00100000
#define BB_STAT2		0x00120000
#define BB_STAT3		0x00140000
#define BB_LEDS			0x002e0000

/* Bits in BB_STAT2 */
#define BB_STAT2_AC_INTR	0x04	/* Aiee! 5ms and power is gone... */
#define BB_STAT2_TMP_INTR	0x10	/* My Penguins are burning. Are you able to smell it? */
#define BB_STAT2_FAN_INTR	0x20	/* My fan refuses to work */
#define BB_STAT2_PWR_INTR	0x40	/* On SC2000, one of the two ACs died. Ok, we go on... */
#define BB_STAT2_MASK		(BB_STAT2_AC_INTR|BB_STAT2_TMP_INTR|BB_STAT2_FAN_INTR|BB_STAT2_PWR_INTR)

/* Cache Controller */
#define CC_BASE		0x1F00000
#define CC_DATSTREAM	0x1F00000  /* Data stream register */
#define CC_DATSIZE	0x1F0003F  /* Size */
#define CC_SRCSTREAM	0x1F00100  /* Source stream register */
#define CC_DESSTREAM	0x1F00200  /* Destination stream register */
#define CC_RMCOUNT	0x1F00300  /* Count of references and misses */
#define CC_IPEN		0x1F00406  /* Pending Interrupts */
#define CC_IMSK		0x1F00506  /* Interrupt Mask */
#define CC_ICLR		0x1F00606  /* Clear pending Interrupts */
#define CC_IGEN		0x1F00704  /* Generate Interrupt register */
#define CC_STEST	0x1F00804  /* Internal self-test */
#define CC_CREG		0x1F00A04  /* Control register */
#define CC_SREG		0x1F00B00  /* Status register */
#define CC_RREG		0x1F00C04  /* Reset register */
#define CC_EREG		0x1F00E00  /* Error code register */
#define CC_CID		0x1F00F04  /* Component ID */

#ifndef __ASSEMBLY__

static inline int bw_get_intr_mask(int sbus_level)
{
	int mask;
	
	__asm__ __volatile__ ("lduha [%1] %2, %0" :
			      "=r" (mask) :
			      "r" (BW_LOCAL_BASE + BW_INTR_TABLE + (sbus_level << 3)),
			      "i" (ASI_M_CTL));
	return mask;
}

static inline void bw_clear_intr_mask(int sbus_level, int mask)
{
	__asm__ __volatile__ ("stha %0, [%1] %2" : :
			      "r" (mask),
			      "r" (BW_LOCAL_BASE + BW_INTR_TABLE_CLEAR + (sbus_level << 3)),
			      "i" (ASI_M_CTL));
}

static inline unsigned bw_get_prof_limit(int cpu)
{
	unsigned limit;
	
	__asm__ __volatile__ ("lda [%1] %2, %0" :
			      "=r" (limit) :
			      "r" (CSR_BASE(cpu) + BW_PTIMER_LIMIT),
			      "i" (ASI_M_CTL));
	return limit;
}

static inline void bw_set_prof_limit(int cpu, unsigned limit)
{
	__asm__ __volatile__ ("sta %0, [%1] %2" : :
			      "r" (limit),
			      "r" (CSR_BASE(cpu) + BW_PTIMER_LIMIT),
			      "i" (ASI_M_CTL));
}

static inline unsigned bw_get_ctrl(int cpu)
{
	unsigned ctrl;
	
	__asm__ __volatile__ ("lda [%1] %2, %0" :
			      "=r" (ctrl) :
			      "r" (CSR_BASE(cpu) + BW_CTRL),
			      "i" (ASI_M_CTL));
	return ctrl;
}

static inline void bw_set_ctrl(int cpu, unsigned ctrl)
{
	__asm__ __volatile__ ("sta %0, [%1] %2" : :
			      "r" (ctrl),
			      "r" (CSR_BASE(cpu) + BW_CTRL),
			      "i" (ASI_M_CTL));
}

static inline unsigned cc_get_ipen(void)
{
	unsigned pending;
	
	__asm__ __volatile__ ("lduha [%1] %2, %0" :
			      "=r" (pending) :
			      "r" (CC_IPEN),
			      "i" (ASI_M_MXCC));
	return pending;
}

static inline void cc_set_iclr(unsigned clear)
{
	__asm__ __volatile__ ("stha %0, [%1] %2" : :
			      "r" (clear),
			      "r" (CC_ICLR),
			      "i" (ASI_M_MXCC));
}

static inline unsigned cc_get_imsk(void)
{
	unsigned mask;
	
	__asm__ __volatile__ ("lduha [%1] %2, %0" :
			      "=r" (mask) :
			      "r" (CC_IMSK),
			      "i" (ASI_M_MXCC));
	return mask;
}

static inline void cc_set_imsk(unsigned mask)
{
	__asm__ __volatile__ ("stha %0, [%1] %2" : :
			      "r" (mask),
			      "r" (CC_IMSK),
			      "i" (ASI_M_MXCC));
}

static inline unsigned cc_get_imsk_other(int cpuid)
{
	unsigned mask;
	
	__asm__ __volatile__ ("lduha [%1] %2, %0" :
			      "=r" (mask) :
			      "r" (ECSR_BASE(cpuid) | CC_IMSK),
			      "i" (ASI_M_CTL));
	return mask;
}

static inline void cc_set_imsk_other(int cpuid, unsigned mask)
{
	__asm__ __volatile__ ("stha %0, [%1] %2" : :
			      "r" (mask),
			      "r" (ECSR_BASE(cpuid) | CC_IMSK),
			      "i" (ASI_M_CTL));
}

static inline void cc_set_igen(unsigned gen)
{
	__asm__ __volatile__ ("sta %0, [%1] %2" : :
			      "r" (gen),
			      "r" (CC_IGEN),
			      "i" (ASI_M_MXCC));
}

/* +-------+-------------+-----------+------------------------------------+
 * | bcast |  devid      |   sid     |              levels mask           |
 * +-------+-------------+-----------+------------------------------------+
 *  31      30         23 22       15 14                                 0
 */
#define IGEN_MESSAGE(bcast, devid, sid, levels) \
	(((bcast) << 31) | ((devid) << 23) | ((sid) << 15) | (levels))
            
static inline void sun4d_send_ipi(int cpu, int level)
{
	cc_set_igen(IGEN_MESSAGE(0, cpu << 3, 6 + ((level >> 1) & 7), 1 << (level - 1)));
}

#endif /* !__ASSEMBLY__ */

#endif /* !(_SPARC_OBIO_H) */